AMERICAN RADIO SYSTEMS CORP /MA/
10-Q, 1997-08-14
RADIO BROADCASTING STATIONS
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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    Form 10-Q


(Mark One):

X    Quarterly report pursuant to Section 13 or 15(d) of the Securities Exchange
     Act of 1934. For the quarterly period ended June 30, 1997


__   Transition  report  pursuant  to  Section  13 or  15(d)  of the  Securities
     Exchange Act of 1934.

Commission File Number: 0-26102

                       AMERICAN RADIO SYSTEMS CORPORATION
             (Exact name of registrant as specified in its charter)

                       Delaware                           04-3196245
           (State or other jurisdiction of             (I.R.S. Employer
            incorporation or organization)            Identification No.)


                              116 Huntington Avenue
                           Boston, Massachusetts 02116
                    (Address of principal executive offices)

                         Telephone Number (617)-375-7500
              (Registrant's telephone number, including area code)

         Indicate by check mark whether the registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the  Securities  Exchange  Act of
1934  during  the  preceding  12 months  (or for such  shorter  period  that the
registrant was required to file such reports),  and (2) has been subject to such
filing requirements for the past 90 days:

         Yes  X                                                        No __


Class of Common Stock                  Outstanding  at July 31, 1997 
Class A Common Stock                    shares 24,194,901  
Class B Common Stock                    shares  3,993,834  
Class C Common Stock                    shares  1,295,518 
Total                                   shares 29,484,253





<PAGE>


                       AMERICAN RADIO SYSTEMS CORPORATION

                                      INDEX

                          PART I. FINANCIAL INFORMATION



Item 1.  Unaudited Condensed Consolidated Financial Statements        Page No.

Condensed Consolidated Balance Sheets
December 31, 1996 and June 30, 1997........................................ 1

Condensed Consolidated Statements of Operations
Three and six months ended June 30, 1996 and 1997.......................... 3

Condensed Consolidated Statements of Cash Flows
Six months ended June 30, 1996 and 1997...................................  4

Notes to Condensed Consolidated Financial Statements......................  5

Item 2.  Management's Discussion and Analysis of Financial Condition
         and Results of Operations........................................ 24


                           PART II. OTHER INFORMATION

Item 1.  Legal Proceedings................................................ 29

Item 2.  Changes in Securities............................................ 29

Item 4.  Submission of Matters to a Vote of Security Holders.............. 29

Item 5.  Other Information................................................ 30

Item 6.  Exhibits and Reports on Form 8-K................................. 31

         Signatures....................................................... 33






<PAGE>





PART I.  FINANCIAL INFORMATION

 ITEM 1.   UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

<TABLE>
<CAPTION>


               AMERICAN RADIO SYSTEMS CORPORATION AND SUBSIDIARIES

                      CONDENSED CONSOLIDATED BALANCE SHEETS
                        (In thousands, except share data)

                                                      December 31, 1996    June 30, 1997
                                                      -----------------    -------------
<S>                                                     <C>              <C>
ASSETS

CURRENT ASSETS:
Cash and cash equivalents                                $   10,447        $   14,469
Accounts receivable (less allowance for doubtful                          
     accounts of $4,560 and $7,297 in 1996 and 1997, 
     respectively)                                           51,897            82,284
Employee and other related-party receivables                    249               377
Prepaid expenses and other assets                             3,354             4,180
Deferred income taxes                                         3,370             3,370
                                                         ----------        ----------
               Total current assets                          69,317           104,680
                                                         ----------        ----------
PROPERTY AND EQUIPMENT-Net                                   90,247           153,044
                                                         ----------        ----------
OTHER ASSETS:                                                             
     Restricted cash                                                            8,896       
     Station investment note receivable-related party                    
        (less valuation allowance of $500 in 1996)              743       
     Investment notes receivable                             69,177            25,750
     Intangible assets-net:                                              
          Goodwill                                          232,149           374,776
          FCC licenses                                      233,558         1,114,573
          Other intangible assets                            27,553            53,177
     Deposits and other long-term assets                     26,064            12,948
     Deferred income taxes                                                      7,142       
     Net assets held under exchange agreement                47,495       
     Net assets held under trust agreement                                     63,252
                                                         ----------        ----------       
               Total other assets                           636,739         1,660,514
                                                         ----------        ----------
TOTAL                                                    $  796,303        $1,918,238
                                                         ==========        ==========
                                                                     
</TABLE>





       See notes to unaudited condensed consolidated financial statements.


                                       1



<PAGE>

<TABLE>
<CAPTION>


                                    AMERICAN RADIO SYSTEMS CORPORATION AND SUBSIDIARIES

                                           CONDENSED CONSOLIDATED BALANCE SHEETS
                                             (In thousands, except share data)

                                                                             December 31, 1996         June 30, 1997
                                                                             -----------------         -------------
<S>                                                                             <C>                      <C>

LIABILITIES AND STOCKHOLDERS' EQUITY
CURRENT LIABILITIES:
     Current maturities of long-term debt                                        $    561                  $    587
     Accounts payable                                                               7,085                     7,863
     Accrued compensation                                                           3,027                     3,483
     Accrued expenses                                                              16,355                    24,300
     Accrued interest                                                               7,303                    12,704
                                                                                 --------                ----------
          Total current liabilities                                                34,331                    48,937
                                                                                 --------                ----------
DEFERRED INCOME TAXES                                                              33,205                   204,424
                                                                                 --------                ----------
OTHER LONG-TERM LIABILITIES                                                         2,149                    11,245
                                                                                 --------                ----------
LONG-TERM DEBT                                                                    330,111                   759,976
                                                                                 --------                ----------
MINORITY INTEREST IN SUBSIDIARY                                                       344                       481
                                                                                 --------                ----------
COMMITMENTS AND CONTINGENCIES                                                             
REDEEMABLE STOCK
     Cumulative Exchangeable Preferred Stock, $0.01 par value; 
        10,000,000 shares authorized; 2,047,391 shares issued and
        outstanding; liquidation preference $100 per share                                                  209,478
                                                                                 --------                ----------
STOCKHOLDERS' EQUITY
     Preferred Stock; $0.01 par value; 10,000,000 shares authorized; 
       Convertible Exchangeable Preferred Stock; 137,500 shares issued
       and outstanding (represented by 2,750,000 depositary shares);
       liquidation preference $1,000 per share                                          1                         1
     Class A Common Stock; $.01 par value; 100,000,000 shares authorized;
       15,101,022 and 24,140,137 shares issued and outstanding,
       respectively                                                                   151                       241
     Class B  Common  Stock;  $.01  par  value;  15,000,000  shares  authorized;
        4,658,096 and 4,036,698 shares issued and outstanding,
        respectively                                                                   47                        40
     Class C Common Stock; $.01 par value; 6,000,000 shares authorized;
        1,295,518 shares issued and outstanding                                        13                        13
     Additional paid-in capital                                                   390,731                   684,089
     Unearned compensation                                                           (297)                     (249)
     Retained earnings                                                              5,955                         0
                                                                                 --------                ----------
          Total                                                                   396,601                   683,135
                                                                                 --------                ----------
     Less:
          Treasury stock, at cost, 18,449 shares at December 31, 1996
              and June 30, 1997                                                      (438)                     (438)
                                                                                 --------                ----------
          Total stockholders' equity                                              396,163                   683,697
                                                                                 --------                ----------
TOTAL                                                                            $796,303                $1,918,238
                                                                                 ========                ==========

</TABLE>

       See notes to unaudited condensed consolidated financial statements.


                                       2
<PAGE>


<TABLE>
<CAPTION>
               AMERICAN RADIO SYSTEMS CORPORATION AND SUBSIDIARIES

                 CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
                      (In thousands, except per share data)


                                                       Three Months Ended June 30,       Six Months Ended June 30,
                                                       ---------------------------       -------------------------
                                                             1996         1997               1996         1997 
                                                          ---------    ---------           ---------    ---------
<S>                                                      <C>          <C>                 <C>          <C>    
NET REVENUES                                              $  37,444    $ 100,108           $  61,092    $ 154,345 
                                                          ---------    ---------           ---------    ---------
OPERATING EXPENSES:                                                                       
     Operating expenses excluding depreciation and                                        
        amortization, net local marketing agreement and                                   
        corporate general and administrative expenses        24,650       63,847              42,774      104,731
     Net local marketing agreement (revenues) expenses        2,139         (591)              2,589        1,341
     Depreciation and amortization                            2,639       16,140               4,839       23,564
     Corporate general and administrative                     1,259        2,156               2,340        3,934 
                                                          ---------    ---------           ---------    ---------
          Total expenses                                     30,687       81,552              52,542      133,570 
                                                          ---------    ---------           ---------    ---------
OPERATING INCOME                                              6,757       18,556               8,550       20,775 
                                                          ---------    ---------           ---------    ---------
OTHER INCOME (EXPENSE):                                                                   
     Interest expense                                        (4,261)     (15,732)             (8,964)     (23,236)
     Interest income                                          1,523          489               3,640        1,145
     Gains (losses) on sale of assets and other, net             (1)         420                 (35)         639 
                                                          ---------    ---------           ---------    ---------
          Total other income (expense)                       (2,739)     (14,823)             (5,359)     (21,452) 
                                                          ---------    ---------           ---------    ---------
INCOME (LOSS) FROM OPERATIONS BEFORE                                                      
   INCOME TAXES AND EXTRAORDINARY ITEM                        4,018        3,733               3,191         (677)
INCOME TAX PROVISION (BENEFIT)                                1,807        1,312               1,436         (374) 
                                                          ---------    ---------           ---------    ---------
INCOME (LOSS) BEFORE EXTRAORDINARY LOSS                       2,211        2,421               1,755         (303)
EXTRAORDINARY LOSS ON EXTINGUISHMENT                                                      
   OF DEBT, NET OF INCOME TAX BENEFIT OF                                                  
   $1,013 IN 1997                                                                                          (1,639)  
                                                          ---------    ---------           ---------    ---------
NET INCOME (LOSS)                                             2,211        2,421               1,755       (1,942)
PREFERRED STOCK DIVIDENDS                                      (134)      (8,094)               (134)     (14,292) 
                                                          ---------    ---------           ---------    ---------
NET INCOME (LOSS) APPLICABLE TO COMMON                                             
   STOCKHOLDERS                                           $   2,077    $  (5,673)          $   1,621    $ (16,234) 
                                                          =========    =========           =========    =========
PER COMMON SHARE AMOUNTS:
   Income (loss) before extraordinary loss                $     .10    $    (.20)          $     .09    $    (.58)
   Extraordinary loss                                                                                        (.07) 
                                                          ---------    ---------           ---------    ---------
   Net income (loss)                                      $     .10    $    (.20)          $     .09    $    (.65)
                                                          =========    =========           =========    =========
WEIGHTED AVERAGE NUMBER OF COMMON SHARES OUTSTANDING         20,142       29,089              19,026       25,080
                                                          =========    =========           =========    =========

</TABLE>


       See notes to unaudited condensed consolidated financial statements.

                                       3

<PAGE>

<TABLE>
<CAPTION>

               AMERICAN RADIO SYSTEMS CORPORATION AND SUBSIDIARIES

                 CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
                                 (In thousands)



                                                                  Six Months Ended June 30,
                                                                  -------------------------
                                                                    1996          1997
                                                                  ---------    ---------
<S>                                                              <C>         <C>
CASH FLOWS USED FOR OPERATING ACTIVITIES:                         $  (5,523)   $ (30,605)
                                                                  ---------    ---------

CASH FLOWS FROM INVESTING ACTIVITIES:
   Payments for purchase of property, equipment and intangible
    assets                                                           (7,336)     (19,386)
   Proceeds from radio station sales                                 18,000       47,876
   Payments for radio station acquisitions                          (67,777)    (445,719)
   Payments for tower related acquisitions                           (5,045)     (19,277)
   Issuance of station investment notes receivable                  (27,779)        (664)
   Repayment of station investment note receivable                                 1,243
   Deposits and other long-term assets                              (23,706)      13,364
                                                                  ---------    ---------
       Cash used for investing activities                          (113,643)    (422,563)

CASH FLOWS FROM FINANCING ACTIVITIES:
   Borrowings under credit agreements and other                                  533,000
   Repayments under credit agreements                              (151,500)    (257,000)
   Repayments of other obligations                                     (568)        (692)
   Net proceeds from equity offerings and options                   248,198          213
   Net proceeds from exchangeable preferred stock offering                       192,218
   Net proceeds from debt offering - net of discount                168,321
   Additions to deferred financing costs                                          (5,526)
   Distributions to minority interest                                               (210)
   Dividends paid                                                                 (4,813)
                                                                  ---------    ---------
       Cash provided by financing activities                        264,451      457,190

INCREASE IN CASH AND CASH EQUIVALENTS                               145,285        4,022

CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD                        3,890       10,447
                                                                  ---------    ---------
CASH AND CASH EQUIVALENTS, END OF PERIOD                          $ 149,175    $  14,469
                                                                  =========    =========

</TABLE>


       See notes to unaudited condensed consolidated financial statements.



                                       4


<PAGE>
                       AMERICAN RADIO SYSTEMS CORPORATION

         NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS


1.   Basis of Presentation - The financial  statements included herein have been
     prepared by American Radio Systems  Corporation  (American or the Company),
     without audit,  pursuant to the rules and regulations of the Securities and
     Exchange Commission.  Although certain information and footnote disclosures
     normally  included in  financial  statements  prepared in  accordance  with
     generally  accepted  accounting  principles  have been condensed or omitted
     pursuant  to such rules and  regulations,  the  Company  believes  that the
     disclosures are adequate to make the  information  presented not misleading
     and  reflect  all  adjustments   (consisting   only  of  normal   recurring
     adjustments)  which are  necessary  for a fair  presentation  of results of
     operations  for  such  periods.  Results  of  interim  periods  may  not be
     indicative of results for the full year. These financial  statements should
     be read in conjunction with the consolidated  financial  statements for the
     year  ended  December  31,  1996  and the  notes  thereto  included  in the
     Company's Annual Report on Form 10-K (Form 10-K).

     Restricted  Cash - Restricted  cash represents cash held in escrow pursuant
     to Internal  Revenue Code like-kind  exchange  agreements which require the
     net proceeds  from the sale of certain  stations to be utilized for pending
     acquisitions. Such agreements may be terminated at the Company's option, in
     which  event such cash held in escrow is  required to be utilized to reduce
     borrowings under the Company's credit agreement.

     Reclassifications - Certain  reclassifications  have been made to the 1996
     financial statements to conform to the 1997 presentation.

2.   Per Share Data - Earnings (loss) per common share is based on the number of
     common shares  outstanding during the period as adjusted for dilutive stock
     options using the provisions of Accounting  Principles Board Opinion No. 15
     "Earnings  Per Share" (APB 15).  Fully  diluted  earnings  (loss) per share
     amounts are not reported separately as the effects are not dilutive.

     In March 1997, the Financial Accounting Standards Board issued Statement of
     Financial  Accounting  Standards  No. 128,  "Earnings per Share," (FAS 128)
     which will be effective during the fourth quarter of 1997. Had FAS 128 been
     effective for the three and six month periods ended June 30, 1997 and 1996,
     reported  earnings  (loss) per share on a pro forma  basis  would have been
     consistent with the per share amounts under APB 15.

3.   Income  Taxes - The Company  provides  for income  taxes at the end of each
     interim  period  based  on the  estimated  effective  tax rate for the full
     fiscal year for each tax reporting corporate entity. Cumulative adjustments
     to the tax provision  (benefit) are recorded in the interim period in which
     a change in the estimated annual effective rate is determined.

4.   Property and Equipment and  Intangible  Assets - Property and equipment and
     intangible assets included  approximately $108.7 million and $120.6 million
     of  assets  related  to radio  stations  held  for  sale or under  exchange
     agreements  as of December  31, 1996 and June 30, 1997,  respectively.  The
     following   summary   presents   the  results  of   operations   (excluding
     depreciation,   amortization  and  corporate  general  and   administrative
     expenses)  relating to these stations that are included in the accompanying
     unaudited condensed  consolidated  financial statements for each respective
     period.
              

     In thousands:

 <TABLE>
<CAPTION>
                           Three Months Ended June 30,        Six Months Ended June 30,
                           ---------------------------        -------------------------
                              1996            1997              1996            1997 
                            -------         -------            -------         -------
<S>                        <C>             <C>                <C>            <C>

Net operating revenues      $ 4,385         $ 6,907            $ 7,312         $11,917
Net operating expenses      $ 2,682         $ 4,556            $ 4,441         $ 8,879
                                                                        
</TABLE>

                                       5

<PAGE>

                       AMERICAN RADIO SYSTEMS CORPORATION

         NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                                   (Continued)



5.   Offerings - In January 1997, the Company  consummated a private offering of
     2,000,000  shares of its 11 3/8%  Cumulative  Exchangeable  Preferred Stock
     (Exchangeable  Preferred  Stock)  to a  group  of  qualified  institutional
     investors. The Company utilized the net proceeds, which approximated $192.2
     million,  initially  to repay  amounts  outstanding  under the 1997  Credit
     Agreement and thereafter to fund acquisitions.   The Exchangeable Preferred
     Stock possesses mandatory  redemption features and is classified as such in
     the Company's condensed consolidated financial statements. Redemption terms
     and  conditions of the  Exchangeable  Preferred  Stock are described in the
     Form 10-K.

     Under  these  terms and  conditions,  the  Company  was  required to file a
     registration  statement  and  offer to  exchange  the  shares  of  Series A
     Exchangeable  Preferred Stock for new Series B Exchangeable Preferred Stock
     within ninety days of January 30, 1997. In April 1997,  the Company filed a
     registration  statement on Form S-4 (No. 333- 26085) and such  registration
     statement,  as amended,  was declared  effective on May 13, 1997. The offer
     expired in June 1997,  and all Series A  Exchangeable  Preferred  Stock was
     exchanged for Series B Exchangeable  Preferred  Stock. The redemption terms
     and  conditions  of the  Series A and the Series B  Exchangeable  Preferred
     Stock are substantially the same.

6.   Credit  Agreements - In January  1997,  the Company  entered  into two  new
     credit  agreements  with a syndicate of banks (the 1997 Credit  Agreement),
     which  replaced  the  previously  existing  credit  agreement.  All amounts
     outstanding under the previous agreement were repaid with proceeds from the
     1997 Credit  Agreement.  Terms and conditions of the 1997 Credit  Agreement
     are described in the Form 10-K. The 1997 Credit  Agreement  consists of two
     separate  lending  agreements,  providing  for  facilities  consisting of a
     $550.0 million reducing revolver credit facility which is available through
     December 31, 2004, a $200.0 million revolving credit facility converting to
     a term loan facility, maturing December 31, 2004, and a $150.0 million term
     loan facility, maturing December 31, 2004, available only to repurchase, if
     required,  certain note obligations of EZ  Communications,  Inc. (EZ) which
     were assumed by the Company in connection  with the EZ Merger discussed  in
     the Form 10-K and in Note 7 . The $150.0  million  term loan  facility  was
     canceled in May 1997, as the Company was not required to repurchase  any of
     the EZ note obligations.

     Following the closing of the 1997 Credit Agreement and repayment of amounts
     outstanding  under  the  previous  agreement,  the  Company  recognized  an
     extraordinary  loss of  approximately  $1,639,000,  net of a tax benefit of
     $1,013,000,   representing   the  write-off  of  deferred   financing  fees
     associated with the previous agreement.


7.   Acquisitions and Dispositions

     General:  The  following  acquisitions  have all been  accounted for by the
     purchase method of accounting,  and, accordingly,  the operating results of
     the acquired entities, to the extent that a local marketing agreement (LMA)
     did not exist,  have been included in consolidated  operating results since
     the date of  acquisition.  The  purchase  price has been  allocated  to the
     assets acquired, principally intangible assets, and the liabilities assumed
     based on their  estimated  fair  values  at the dates of  acquisition.  The
     excess of purchase  price over the  estimated  fair value of the net assets
     acquired has been recorded as goodwill.  The financial  statements  reflect
     the preliminary allocation of certain purchase prices as the appraisals for
     certain  acquisitions  have not yet been  finalized.  The Company  does not
     expect the final  appraisals  will have a material  affect on the financial
     position, results of operations or liquidity of the Company.


                                       6
<PAGE>

                       AMERICAN RADIO SYSTEMS CORPORATION

         NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                                   (Continued)


7.   Acquisitions and Dispositions - (Continued)

     During the first six months of 1996 and 1997, the Company  consummated  the
     following  station and tower  related  transactions.  See the Form 10-K for
     additional information on these transactions.

     1997 Acquisitions and Dispositions:

     EZ Merger: On April 4, 1997, the Company  consummated the merger of EZ into
     the  Company  (the EZ  Merger). Pursuant  to which,  the  Company  acquired
     eighteen FM and six AM  stations  in eight  markets:  Seattle,  St.  Louis,
     Pittsburgh,   Sacramento,   Charlotte,   Kansas   City,   New  Orleans  and
     Philadelphia,  assumed  approximately $222.4 million of long-term debt  (of
     which approximately $72.7 was paid at closing),  paid approximately  $108.9
     million in cash and issued approximately 8,344,000 shares of Class A Common
     Stock  to  the EZ  stockholders  valued  at  approximately  $310.8  million
     (excluding  approximately  362,000  shares of  common  stock  reserved  for
     options  held by  former  employees  of EZ valued  at  approximately  $12.5
     million).  The aggregate  purchase price was approximately  $830.0 million,
     including  goodwill,  approximately  $7.0 million in transaction costs, and
     assumed  liabilities  (including  deferred  income taxes) of  approximately
     $428.0  million.  The  merger  has been  accounted  for using an  effective
     closing  date of  April 1,  1997,  as the  difference  between  actual  and
     effective  closing  date  on  the  results  of  operations,  liquidity  and
     financial position was not material.

     As part of the EZ Merger, the Company assumed EZ's obligations with respect
     to $150.0  million  principal  amount of the EZ 9.75%  Senior  Subordinated
     Notes (the 9.75%  Notes)  and  repaid  all  borrowings  under the EZ credit
     facility with borrowings from the 1997 Credit Agreement. As required by the
     closing of the EZ Merger, the Company was required to offer to purchase the
     9.75% Notes at 101% of their  principal  amount.  Such offer  commenced  in
     April 1997 and expired in May 1997,  with no such notes being  tendered for
     purchase.  The 9.75% Notes have semi-annual interest payments due on June 1
     and December 1, have certain  redemption terms at the option of the Company
     and are due in 2005. The 9.75% Notes are general  unsecured  obligations of
     the Company and are guaranteed by the restricted  subsidiaries as described
     in Note 10.

     Austin: In March 1997, the Company acquired KAMX-FM,  KKMJ-FM, and KJCE-AM,
     for approximately $28.7 million.

     Baltimore:  In February 1997, the Company  acquired WWMX-FM and WOCT-FM for
     approximately $90.0 million.

     Boston/Worcester: In January 1997, the Company acquired WAAF-FM and WWTM-AM
     for approximately $24.8 million.

     Charlotte:  In May 1997,  the Company,  as successor to EZ,  consummated an
     asset exchange  agreement  pursuant to which the Company  exchanged WIOQ-FM
     and  WUSL-FM  in  Philadelphia  for  WRFX-FM,   WPEG-FM,  WBAV-FM,  WGIV-AM
     (formerly WBAV-AM) and WFNZ-AM serving  Charlotte,  and also consummated an
     asset  purchase   agreement  to  acquire  WNKS-FM  serving   Charlotte  for
     approximately  $10.0  million.  In February 1997, EZ and the seller entered
     into a consent decree with the Justice  Department  (the Charlotte  Consent
     Decree).  Pursuant to the Charlotte Consent Decree,  and in compliance with
     the FCC's multiple ownership rules, EZ agreed to dispose of WRFX-FM,  which
     was transferred to an independent and insulated  trustee upon  consummation
     of the exchange. The net assets and liabilities of WRFX-FM included in this
     exchange  agreement  are carried on the  consolidated  balance sheet as net
     assets held under trust agreement. (See Note 9).


                                       7
<PAGE>

                       AMERICAN RADIO SYSTEMS CORPORATION

         NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                                   (Continued)


7.   Acquisitions and Dispositions - (Continued)

     Cincinnati:  In January  1997,  the  Company  merged  with an  unaffiliated
     corporation  pursuant to which it became a party to an agreement to acquire
     WGRR-FM,  for  approximately  $30.5 million.  Pursuant to such merger,  the
     Company   issued   18,341   shares  of  Class  A  Common  Stock  valued  at
     approximately  $0.5  million.  In May 1997,  the  Company  consummated  the
     acquisition of WGRR-FM.

     Cincinnati and Rochester:  In April 1997,  the Company  exchanged  WVOR-FM,
     WHAM-AM and WHTK-AM  serving  Rochester,  together with $16.0 million,  for
     WKRQ-FM serving Cincinnati. See Rochester below.

     Dayton:  In February 1997, the Company acquired  WXEG-FM for  approximately
     $3.6  million and  acquired  WLQT-FM and  WBBT-FM for  approximately  $12.0
     million.

     Detroit, Philadelphia,  Sacramento: In February 1997, the Company exchanged
     WFLN-FM in Philadelphia for KSFM-FM and KMJI-AM serving Sacramento and sold
     WQRS-FM in Detroit for approximately $20.0 million. See Sacramento below.

     Fresno:  In April  1997,  the  Company  acquired  KOQO-AM  and  KOQO-FM for
     approximately $6.0 million.

     Omaha:  In May 1997,  the Company  sold the assets of KGOR-FM,  KFAB-AM and
     Business Music Service Inc. for  approximately  $38.0 million.  Proceeds of
     the sale were initially held as restricted cash.

     Rochester: In February 1997, the Company acquired WVOR-FM, WPXY-FM, WHAM-AM
     and WHTK-AM for approximately $31.5 million including working capital.  See
     Cincinnati and Rochester above.

     In April 1997, the Company acquired  WZNE-FM  (formerly  WAQB-FM),  a newly
     licensed Class A FM station for approximately $3.5 million.

     Sacramento:  In March 1997, the Company acquired KXOA-FM, KQPT-AM (formerly
     KXOA-AM) and KZZO-FM (formerly KQPT-FM) for approximately $50.0 million. In
     October  1996,  the Company  entered  into an agreement to sell KXOA-FM for
     approximately  $27.5  million.  After the expiration of the HSR Act waiting
     period,  the other party to the agreement  began  programming and marketing
     KXOA-FM  pursuant to an LMA in January 1997. As a condition to consummation
     of the EZ merger,  KXOA-FM was  transferred to an independent and insulated
     trustee  (under a trust for the benefit of the Company) and was held by the
     trustee subject to sale pursuant to the foregoing agreement.  In June 1997,
     the trustee sold KXOA-FM to the ultimate purchaser.

     In April 1997, the Company sold KMJI-AM for approximately $1.5 million.

     Sacramento and West Palm Beach:  In March 1997, the Company  consummated an
     agreement to exchange  KSTE- AM in Sacramento and $33.0 million in cash for
     WEAT-FM, WEAT-AM and WOLL-FM serving West Palm Beach. (See Note 8).

     San Jose:  In  February  1997,  the  Company  acquired  KBAY-FM and KKSJ-AM
     serving San Jose for approximately $31.0 million. (See Note 8).


                                       8
<PAGE>


                       AMERICAN RADIO SYSTEMS CORPORATION

         NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                                   (Continued)


7.   Acquisitions and Dispositions - (Continued)

     Seattle: In April 1997, the Company exchanged WEZB-FM, WRNO-FM and WBYU-AM,
     serving New Orleans,  and $7.5 million for KBKS-FM  (formerly  KCIN-FM) and
     KRPM-AM.

     In June 1997, the Company sold the assets of KMPS-AM for approximately $1.8
     million.

     Tower  Subsidiary:  In June 1997,  American Tower Systems,  Inc. (the Tower
     Subsidiary  or Tower)  acquired 21 tower sites and a tower site  management
     business in Georgia,  North Carolina and South  Carolina for  approximately
     $5.3 million.  The agreement also provides for additional payments by Tower
     if the seller is able to arrange the purchase or  management of tower sites
     presently owned by an unaffiliated public utility in South Carolina,  which
     payments could aggregate up to approximately $1.2 million.

     In May 1997, the Tower Subsidiary acquired the assets of two companies that
     are  affiliated  with  one  another  and are  engaged  in the  business  of
     acquiring  and  developing  tower sites for  unaffiliated  third parties in
     various locations in the United States for approximately $13.0 million.

     In May 1997,  the Tower  Subsidiary  entered  into an  agreement to own and
     operate  communication towers which will be constructed on over fifty tower
     sites in northern California.  The Tower Subsidiary advanced  approximately
     $0.8 million to this entity and owns a 70% interest in the entity, with the
     remaining  30% owned by an  unaffiliated  party.  The Tower  Subsidiary  is
     obligated to provide additional financing for the construction of these and
     any additional  towers and such obligation is estimated to be approximately
     $5.0 million.

     1996 Acquisitions:

     Hartford:  In May 1996,  the  Company  acquired  WTIC-AM  and  WTIC-FM  for
     approximately $39.0 million.

     Detroit and  Philadelphia:  In May 1996,  the Company  consummated a merger
     agreement  with  Marlin  Broadcasting,  Inc.  pursuant to which it acquired
     WFLN-FM in  Philadelphia  and  WQRS-FM in Detroit for  approximately  $58.5
     million.

     Tower Subsidiary:  In February 1996, the Tower Subsidiary  acquired Skyline
     Communications  and  Skyline  Antenna  Management  for  approximately  $3.3
     million.

     In April 1996, the Tower Subsidiary acquired BDS  Communications,  Inc. and
     BRIDAN Communications Corporation for approximately $9.1 million.


                                       9
<PAGE>


                       AMERICAN RADIO SYSTEMS CORPORATION

         NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                                   (Continued)


7.   Acquisitions and Dispositions - (Continued)


     The following unaudited pro forma summary presents the consolidated results
     of  operations  as if the  transactions  had occurred as of January 1, 1996
     after giving  effect to certain  adjustments,  including  depreciation  and
     amortization  of assets and interest  expense on any debt  incurred to fund
     the acquisitions.  These unaudited pro forma results have been prepared for
     comparative purposes only and do not purport to be indicative of what would
     have occurred had the transactions actually been made as of January 1, 1996
     or of results which may occur in the future.

     In thousands, except per share data:


                                        Six Months Ended     Six Months Ended
                                       ----------------     ----------------
                                         June 30,1996        June 30, 1997
                                       ----------------     ----------------

     Net  revenues                        $ 141,808             $ 183,842  
     Loss before extraordinary loss         (15,528)              (12,802)
     Net loss                               (15,528)              (14,442)
     Net loss applicable to common                             
       stockholders                         (15,661)              (28,733)
     Net loss per common share            $    (.57)            $    (.98)
  


8.   Pending  Transactions - The Company has numerous pending transactions which
     were  described  in the Form  10-K or have  been  entered  into  subsequent
     thereto. The following transactions are currently pending:

     Dayton and Kansas  City:  In June 1997,  the Company  entered into an asset
     exchange  agreement  pursuant to which it will  acquire  WDAF-AM,  KYYS-FM,
     KMXV-FM and KUDL-FM  serving Kansas City in exchange for WXEG- FM, WBTT-FM,
     WLQT-FM,  WMMX-FM,  WTUE-FM  and  WONE-AM  serving  Dayton.  Subject to the
     receipt of FCC approval (the HSR Act waiting period was terminated  early),
     the transaction is expected to be consummated in the fourth quarter of 1997
     or the first quarter of 1998.

     Lebanon:  In June 1997,  the Company  entered  into an agreement to acquire
     WMMA-FM serving the Lebanon,  Ohio market for  approximately  $3.0 million.
     Subject to the receipt of FCC approval,  the  acquisition is expected to be
     consummated in the fourth quarter.

     Portland,  Sacramento,  San  Francisco  and San Jose:  In April  1997,  the
     Company entered into an asset exchange  agreement pursuant to which it will
     acquire KINK-FM,  serving Portland,  Oregon,  KBRG-FM,  serving Fremont/San
     Francisco,  California,  $2.0 million in cash, and 150,000 shares of common
     stock of Latin Communications,  Inc., in exchange for KBAY-FM,  serving San
     Jose, and KSSJ-FM, serving Sacramento.  The agreement also provides for the
     exchange of KINK-FM for KBAY-FM in the event  regulatory  approval  for the
     exchange  of KBRG-FM  and KSSJ-FM  cannot be  obtained.  Subject to certain
     conditions,   including  the  receipt  of  FCC  approval  and  satisfactory
     resolution of the matters in the subsequent paragraph,  and, in the case of
     the exchange of KSSJ-FM for  KBRG-FM,  Justice  Department  approval of the
     acquisition pursuant to a consent decree, the transaction is expected to be
     consummated in the third or fourth quarter.


                                       10


<PAGE>

                       AMERICAN RADIO SYSTEMS CORPORATION

         NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                                   (Continued)




8.   Pending Transactions -  (Continued)                                      

     In June 1997, the Company and the seller  received  requests for additional
     information  about the acquisition from the Anti Trust Division of the U.S.
     Department of Justice.  Under the HSR Act and the  regulations  thereunder,
     the acquisition  may not be consumated  until 20 days after the Company and
     the seller have  substantially  complied with such  additional  information
     requests.  Although the Company  believes the  acquisition  and divestiture
     hereunder  complied with the anti-trust  laws, the Department of Justice or
     others  could take action under the  antitrust  laws to enjoin or otherwise
     challenge such acquisition/divestiture.

     Portsmouth:  In May 1997, the Company  entered into an agreement to acquire
     WSRI-FM, WZNN-AM, WMYF- AM and WEZR-FM, serving Portsmouth,  New Hampshire,
     for approximately $6.0 million. The Company began programming and marketing
     the  stations  pursuant to an LMA  agreement  in July 1997.  Subject to the
     receipt of FCC approval,  the  acquisition is expected to be consummated in
     the third quarter.

     Riverside/San  Bernardino and Sun City: In March 1997, the Company  entered
     into an agreement to acquire KFRG-FM,  serving the Riverside/San Bernardino
     market, and KXFG-FM, serving Sun City, California,  for approximately $60.0
     million.  The Company began programming and marketing the stations pursuant
     to an LMA agreement in August 1997.  FCC approval has been received and the
     HSR Act waiting period was terminated early. The acquisition is expected to
     be consummated in the first quarter of 1998.

     San Jose and  Monteray:  In March 1997,  the Company  entered into a merger
     agreement  pursuant to which the Company will acquire the assets of KEZR-FM
     and KLUE-FM  serving  Monteray,  California  in exchange for  approximately
     723,000  shares  of Class A Common  Stock  valued  at  approximately  $20.0
     million and $4.0 million in cash.  Subject to the receipt of FCC  approval,
     the  acquisition is expected to be consummated  in the fourth  quarter.  In
     June 1997,  the Company and the seller each received a Civil  Investigative
     Demand from the Anti Trust Division of the Department of Justice requesting
     certain documentary materials regarding the merger and the purchase,  sale,
     or trade or other transfer of radio stations in San Jose, California.

     In May 1997,  the Company  entered  into an  agreement  to sell KKSJ-AM for
     approximately  $3.2 million.  The acquirer began  programming and marketing
     the  stations  pursuant to an LMA  agreement  in June 1997.  Subject to the
     receipt of FCC approval,  the  transaction is expected to be consummated in
     the fourth quarter.

     Temple: In May 1997, the Company entered into an agreement to acquire radio
     station KKIK-FM,  licensed to Temple, Texas for approximately $3.7 million.
     Subject to the  approval  of the FCC,  the  transaction  is  expected to be
     consummated in the fourth quarter.

     West Palm Beach:  In May 1997 the Company entered into an agreement to sell
     WKGR-FM,  WOLL-FM,  WBZT- AM, and WEAT-AM for approximately  $33.0 million.
     Subject to the  receipt of FCC  approval  (the HSR Act  waiting  period has
     expired),  the  transaction  is  expected  to be  consummated  in the third
     quarter.

9.   Subsequent  Events - Subsequent to June 30, 1997,  the Company  consummated
     the following transactions:

     Boston:  In July 1997,  the  Company  acquired  the  assets of WNFT-AM  for
     approximately $4.5 million. The Company began programming and marketing the
     station pursuant to an LMA agreement in June 1997.

                                       11
<PAGE>
                       AMERICAN RADIO SYSTEMS CORPORATION

         NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                                   (Continued)


9.   Subsequent Events - (Continued)

     Charlotte  and  Pittsburgh:  In August  1997,  in order to comply  with the
     Charlotte  Consent  Decree  described  in  Note 7 and  the  FCC's  multiple
     ownership  rules,  the  Company  consummated  an asset  exchange  agreement
     pursuant to which it exchanged  WRFX-FM,  serving  Charlotte,  for WDSY-FM,
     serving Pittsburgh, and $20.0 million.

     Kansas City,  Sacramento and St. Louis:  In July 1997, the Company  entered
     into an agreement to acquire  KLOU- FM in St. Louis in exchange for KUDL-FM
     and WDAF-AM in Kansas City and approximately $7.0 million. The Company also
     entered into a related agreement with the same party, pursuant to which the
     Company  will  sell  KCTC-AM  serving  Sacramento  for  approximately  $4.0
     million.  Subject to the receipt of FCC approval and  expiration or earlier
     termination of the HSR Act waiting period, the transactions are expected to
     be consummated in the fourth quarter.

     Rochester:  In July  1997,  the  Company  sold the  assets of  WCMF-AM  for
     approximately $0.7 million.
         
     St. Louis:  In July 1997, the Company sold the assets of KTRS-AM  (formerly
     KSD-AM) for approximately $10.0 million.

     West Palm Beach:  In July 1997,  the Company  entered  into an agreement to
     acquire  WTPX-FM  for  approximately  $11.0  million.   The  Company  began
     programming and marketing the stations pursuant to an LMA agreement in June
     1997.  Subject to the receipt of FCC  approval  and  expiration  or earlier
     termination of the HSR Act waiting  period,  the acquisition is expected to
     be consummated in the fourth quarter.

     Tower  Subsidiary:   In  July  1997,  the  Tower  Subsidiary  acquired  the
     following:

          (i) the assets of three entities which are affiliated with one another
     which own and  operate  towers  and a tower  site  management  business  in
     southern  California for an aggregate purchase price of approximately $32.1
     million;
          (ii)  the  assets  of  one  tower  site  in   Washington,   D.C.   for
     approximately $0.9 million;
          (iii) the assets of six tower sites in Pennsylvania for  approximately
     $0.3 million and
          (iv) the  permit  rights to build  five tower  sites in  Maryland  for
     approximately $0.5 million.

     In July 1997, the Tower Subsidiary entered into an asset purchase agreement
     with two entities  affiliated with one another to acquire tower sites and a
     tower  site  management   business  located  in  northern   California  for
     approximately $45.0 million. In connection therewith,  the Tower Subsidiary
     also  agreed to loan up to $1.35  million to the  sellers  on an  unsecured
     basis, of which approximately $0.25 million has been advanced. Consummation
     of the  transaction is dependent on, among other things,  the expiration or
     earlier  termination  of the HSR Act waiting  period.  The  transaction  is
     expected to be consummated in the third quarter.

     In July 1997, the Tower Subsidiary entered into an asset purchase agreement
     to  acquire  tower  sites  and  certain  video  transport   operations  for
     approximately  $70.25 million.  The seller owns or leases approximately 125
     towers,  principally  in the  Mid-Atlantic  region,  with the  remainder in
     California  and Texas.  Consummation  of the  transaction  is dependent on,
     among other things,  the  expiration or earlier  termination of the HSR Act
     waiting period. The acquisition is expected to be consummated in the fourth
     quarter of 1997 or the first quarter of 1998.

     In  August  1997,  the  Tower  Subsidiary  acquired  six  tower  sites  for
     approximately $1.5 million.

     The Company is also  pursuing  the  acquisitions  of tower  properties  and
     additional radio stations in new and existing  markets,  none of which have
     definitive purchase agreements.

                                       12
<PAGE>
                       AMERICAN RADIO SYSTEMS CORPORATION

         NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                                   (Continued)


10.  Subsidiary Guarantees:

     The Company's payment obligations under the 9.00% Senior Subordinated Notes
     (9% Notes) and the 9.75% Senior  Subordinated Notes (9.75% Notes) are fully
     and unconditionally  guaranteed on a joint and several basis (collectively,
     the Subsidiary Guarantees), on a senior basis (in the case of the 9% Notes)
     and a senior  subordinated basis (in the case of the 9.75% Notes) by all of
     its present and any future Restricted Subsidiaries (collectively Restricted
     Guarantors).   The  Restricted   Subsidiaries  have  also   unconditionally
     guaranteed,  and any future  Restricted  Subsidiaries  will be  required to
     guarantee,  on  a  joint  and  several  basis  (collectively,   the  Senior
     Subsidiary  Guarantees),  all  obligations  of the  Company  under the 1997
     Credit Agreement. The Tower Subsidiary has not guaranteed obligations under
     the Credit Agreements or either series of the Senior Subordinated Notes.

     The 9.75%  Notes and the  Subsidiary  Guarantees  are  subordinated  to all
     Senior Debt (as defined) of the Company  including  indebtedness  under the
     1997 Credit Agreement and the Senior Subsidiary  Guarantees.  The indenture
     governing each series of the Senior Subordinated Notes contains limitations
     on the amount of indebtedness (including Senior Debt) which the Company may
     incur.

     With the intent that the Subsidiary  Guarantees  not constitute  fraudulent
     transfers  or  conveyances  under  applicable  state or  federal  law,  the
     obligation of each guarantor under its Subsidiary Guarantee is also limited
     to the  maximum  amount  as will,  after  giving  effect  to any  rights to
     contribution of such guarantor  pursuant to any agreement  providing for an
     equitable  contribution  among such  guarantor and other  affiliates of the
     Company of  payments  made by  guarantees  by such  parties,  result in the
     obligations  of such  guarantor  in  respect  of such  maximum  amount  not
     constituting a fraudulent conveyance.

     The following unaudited condensed  consolidating financial data illustrates
     the  composition  of the combined  guarantors.  The Company  believes  that
     separate complete financial  statements of the respective  guarantors would
     not  provide  additional  material  information  which  would be  useful in
     assessing the financial composition of the guarantors.  No single guarantor
     has any  significant  legal  restrictions  on the ability of  investors  or
     creditors  to  obtain  access  to its  assets  in event of  default  on the
     Subsidiary  Guarantee, other  than  in the  case  of the  9.75%  Notes  its
     subordination to Senior Debt described above.

     Investments in  subsidiaries  are accounted for by the parent on the equity
     method  for   purposes   of  the   unaudited   supplemental   consolidating
     presentation.  Earnings (losses) of subsidiaries are therefore reflected in
     the parent's  investment accounts and earnings.  The principal  elimination
     entries eliminate investments in subsidiaries and intercompany balances and
     transactions.

                                       13

<PAGE>




<TABLE>
<CAPTION>
                              Unaudited Condensed Consolidating Balance Sheet
                                              June 30, 1997
                                          (Dollars in thousands)

   
                                                   Parent and     Guarantor      Non-guarantor                    Consolidated  
                                                  its Divisions   Subsidiaries   Subsidiaries     Eliminations       Totals
                                                  -------------   ------------   -------------    ------------     ------------
<S>                                              <C>             <C>             <C>             <C>               <C>


ASSETS
CURRENT ASSETS:
   Cash and cash equivalents                     $    8,095       $    4,503      $    1,871                        $   14,469
   Accounts receivable, net                          51,612           29,834             838                            82,284
   Prepaid expenses and other current assets          3,374            1,081             102                             4,557
   Deferred income taxes                              3,201              169                                             3,370
                                                 ----------       ----------     -----------       -----------      ---------- 
      Total current assets                           66,282           35,587           2,811                           104,680

PROPERTY AND EQUIPMENT, NET                          81,202           47,798          24,044                           153,044
OTHER ASSETS:

   Restricted cash                                    8,896                                                              8,896
   Investment in and advances to subsidiaries     1,288,346                                         (1,288,346)              0 
   Investment notes receivable                       25,496                              254                            25,750
   Goodwill - net                                   342,379           20,198          12,199                           374,776
   FCC licenses - net                                              1,114,573                                         1,114,573
   Other intangible assets - net                     31,672            1,938          19,567                            53,177
   Deposits and other long-term assets               12,502                              446                            12,948
   Deferred income taxes                              7,142                                                              7,142
   Net assets held under trust agreement                              63,252                                            63,252
                                                 ----------       ----------     -----------       -----------      ---------- 
      Total other assets                         $1,716,433        1,199,961          32,466        (1,288,346)      1,660,514
                                                 ----------       ----------     -----------       -----------      ----------
TOTAL ASSETS                                     $1,863,917       $1,283,346     $    59,321       $(1,288,346)     $1,918,238
                                                 ==========       ==========     ===========       ===========      ========== 



                                       14

<PAGE>

<CAPTION>

                                 AMERICAN RADIO SYSTEMS CORPORATION

                   NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                                             (Continued)


10.      Subsidiary Guarantees - (continued):


                              Unaudited Condensed Consolidating Balance Sheet
                                              June 30, 1997
                                          (Dollars in thousands)

   
                                                   Parent and     Guarantor      Non-guarantor                    Consolidated  
                                                  its Divisions   Subsidiaries   Subsidiaries     Eliminations       Totals
                                                  -------------   ------------   -------------    ------------     ------------
<S>                                              <C>             <C>             <C>             <C>               <C>

LIABILITIES AND STOCKHOLDERS'
   EQUITY
CURRENT LIABILITIES:
   Current maturities of long-term debt          $      480                      $       107                        $      587
   Accounts payable and accrued expenses             39,549       $    6,959           1,842                            48,350
                                                 ----------       ----------     -----------       -----------      ----------
      Total current liabilities                      40,029            6,959           1,949                            48,937


NON-CURRENT LIABILITIES:
   Deferred income taxes                            182,623           21,522             279                           204,424
   Other long-term liabilities                       11,236                                9                            11,245
   Long-term debt                                   736,854                           23,122                           759,976
                                                 ----------       ----------     -----------       -----------      ----------
      Total non-current liabilities                 930,713           21,522          23,410                           975,645

MINORITY INTEREST IN SUBSIDIARY                                                          481                               481
REDEEMABLE EXCHANGEABLE
   PREFERRED STOCK                                  209,478                                                            209,478

STOCKHOLDERS'  EQUITY:
   Preferred Stock                                        1                                                                  1
   Common Stock                                         294                              500      $       (500)            294
   Additional paid-in capital                       684,089        1,249,394          33,970        (1,283,364)        684,089   
   Unearned compensation                               (249)                                                              (249)
   Retained earnings                                      0            5,471            (989)           (4,482)              0
   Treasury stock                                      (438)                                                              (438)
                                                 ----------       ----------     -----------       -----------      ----------
      Total stockholders' equity                    683,697        1,254,865          33,481        (1,288,346)        683,697
                                                 ----------       ----------     -----------       -----------      ----------
TOTAL LIABILITIES AND STOCKHOLDERS'
   EQUITY                                        $1,863,917       $1,283,346     $    59,321      $ (1,288,346)    $ 1,918,238
                                                 ==========       ==========     ===========      ============     ===========





                                       15

<PAGE>
<CAPTION>

                                 AMERICAN RADIO SYSTEMS CORPORATION

                   NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                                             (Continued)


10.      Subsidiary Guarantees - (continued):


                    Unaudited Condensed Consolidating Statement of Operations
                             For the Six Months Ended June 30, 1997
                                     (Dollars in thousands)

                                                   Parent and     Guarantor      Non-guarantor                    Consolidated  
                                                  its Divisions   Subsidiaries   Subsidiaries     Eliminations       Totals
                                                  -------------   ------------   -------------    ------------     ------------
<S>                                              <C>             <C>             <C>             <C>               <C>

Net broadcast revenues                            $ 105,885       $   45,258                      $        (22)    $   151,121
Tower revenues                                                                   $     3,381              (157)          3,224
License fees charged to Parent                       (8,428)           8,428                                                 0
                                                  ---------       ----------     -----------      ------------     -----------
Total net revenues                                   97,457           53,686           3,381              (179)        154,345

Operating expenses excluding
    depreciation and amortization, net
    local marketing agreement and
    corporate general and administrative             74,325           28,736           1,849              (179)        104,731
    expenses
Net local marketing agreement expense                   993              348                                             1,341
Depreciation and amortization                         7,830           14,411           1,323                            23,564
Corporate general and administrative                  3,934                                                              3,934
                                                  ---------       ----------     -----------      ------------     -----------
Operating income                                     10,375           10,191             209                            20,775

Other income (expense):
  Interest expense                                  (22,918)                            (318)                          (23,236)
  Interest income                                     1,088                               57                             1,145
  Gain (loss) on sale of assets and other, net          803               (3)           (161)                              639
  Equity in (loss) of subsidiaries, net of
    income taxes recorded at the
    subsidiary level                                  4,465                                             (4,465)              0
                                                  ---------       ----------     -----------      ------------     -----------
Income (loss) before income taxes and
    extraordinary item                               (6,187)          10,188            (213)           (4,465)           (677)
Benefit (provision) for income taxes                  5,884           (5,324)           (186)                              374
                                                  ---------       ----------     -----------      ------------     -----------
Income (loss) before extraordinary loss                (303)           4,864            (399)           (4,465)           (303)
Extraordinary loss on extinguishment of
    debt - net of tax benefit                        (1,639)                                                            (1,639)
                                                  ---------       ----------     -----------      ------------     -----------
Net income (loss)                                 $  (1,942)      $    4,864     $      (399)     $     (4,465)    $    (1,942)
                                                  =========       ==========     ===========      ============     ===========



                                       16

<PAGE>
<CAPTION>

                       AMERICAN RADIO SYSTEMS CORPORATION

         NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                                   (Continued)

10.      Subsidiary Guarantees - (continued):


                     Unaudited Condensed Consolidating Statement of Operations
                             For the Three Months Ended June 30, 1997
                                       (Dollars in thousands)

                                                   Parent and     Guarantor      Non-guarantor                    Consolidated  
                                                  its Divisions   Subsidiaries   Subsidiaries     Eliminations       Totals
                                                  -------------   ------------   -------------    ------------     ------------
<S>                                              <C>             <C>             <C>             <C>               <C>

Net broadcast revenues                            $  54,704       $   43,486                      $        (13)    $    98,177
Tower revenues                                                                   $     2,015               (84)          1,931
License fees charged to Parent                       (3,274)           3,274                                                 0
                                                  ---------       ----------     -----------      ------------     -----------
Total net revenues                                   51,430           46,760           2,105               (97)        100,108

Operating expenses excluding
    depreciation and amortization, net
    local marketing agreement and
    corporate general and administrative             35,628           27,284           1,032               (97)         63,847
    expenses
Net local marketing agreement (revenues) expenses    (1,606)           1,015                                              (591)
Depreciation and amortization                         4,406           10,916             818                            16,140
Corporate general and administrative                  2,156                                                              2,156
                                                  ---------       ----------     -----------      ------------     -----------
Operating income                                     10,846            7,545             165                            18,556

Other income (expense):
  Interest expense                                  (15,510)                            (222)                          (15,732)
  Interest income                                       457                               32                               489
  Gain (loss) on sale of assets and other, net          504               (3)            (81)                              420
  Equity in (loss) of subsidiaries, net of
    income taxes recorded at the
    subsidiary level                                  4,567                                             (4,567)              0
                                                  ---------       ----------     -----------      ------------     -----------
Income (loss) before income taxes and
    extraordinary item                                  864            7,542            (106)           (4,567)          3,733
Benefit (provision) for income taxes                  1,557           (2,633)           (236)                           (1,312)
                                                  ---------       ----------     -----------      ------------     -----------
Net income (loss)                                 $   2,421       $    4,909     $      (342)     $     (4,567)    $     2,421
                                                  =========       ==========     ===========      ============     ===========



                                       17
<PAGE>


<CAPTION>

  
                   Unaudited Condensed Consolidating Statement of Cash Flows
                            For the Six Months Ended June 30, 1997
                                     (Dollars in thousands)


                                                    Parent and     Guarantor     Non-guarantor                     Consolidated  
                                                  its Divisions   Subsidiaries   Subsidiaries     Eliminations       Totals
                                                  -------------   ------------   -------------    ------------     ------------
<S>                                              <C>             <C>             <C>             <C>               <C>

Cash flows from operating activities              $ (28,073)      $   (3,043)    $       511                       $   (30,605)
                                                  ---------       ----------     -----------      ------------     -----------
Investing Activities:
  Payments for purchase of property and
        equipment and intangible assets             (14,497)                          (4,889)                          (19,386)
  Proceeds from radio station sales                  27,876           20,000                                            47,876
  Payments for radio station acquisitions          (445,719)                                                          (445,719)
  Payments for tower related acquisitions           (19,277)                                                           (19,277)
  Repayment for station investment notes
     receivable                                       1,243                                                              1,243
  Issuance of station investment notes
     receivable                                        (410)                            (254)                             (664)
  Deposits and other long-term assets                13,431              (48)            (19)                           13,364
                                                  ---------       ----------     -----------                       -----------
Cash flows used by investing activities            (437,353)          19,952          (5,162)                         (422,563)
                                                  ---------       ----------     -----------                       -----------


Financing Activities:
  Borrowings under Credit Agreements and
     other                                          514,000                           19,000                           533,000
  Repayment of Credit Agreements                   (257,000)                                                          (257,000)
  Repayment of other obligations                       (385)                            (307)                             (692)
  Net proceeds from equity offerings and
     options                                            213                                                                213
  Net proceeds from exchangeable preferred
     stock                                          192,218                                                            192,218
  Additions to deferred financing costs              (5,526)                                                            (5,526)
  Distributions to minority interest                                                    (210)                             (210)
  Dividends paid                                     (4,813)                                                            (4,813)
  Investment in and advances to subsidiaries         26,740          (12,406)        (14,334)                                0
                                                  ---------       ----------     -----------                       -----------
Cash flows from financing activities                465,447          (12,406)          4,149                           457,190
                                                  ---------       ----------     -----------      ------------     -----------    

Increase (decrease) in cash and cash equivalents         21            4,503            (502)                            4,022

Cash and cash equivalents at beginning
       of period                                      8,074                            2,373                            10,447 
                                                  ---------       ----------     -----------      ------------     -----------
Cash and cash equivalents at end of period        $   8,095       $    4,503     $     1,871                       $    14,469
                                                  =========       ==========     ===========      ============     ===========




                                       18

<PAGE>
<CAPTION>

                                 AMERICAN RADIO SYSTEMS CORPORATION

                   NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                                             (Continued)


10.      Subsidiary Guarantees - (continued):


                                  Condensed Consolidating Balance Sheet
                                            December 31, 1996
                                          (Dollars in thousands)

                                                   Parent and     Guarantor      Non-guarantor                    Consolidated  
                                                  its Divisions   Subsidiaries   Subsidiaries     Eliminations       Totals
                                                  -------------   ------------   -------------    ------------     ------------
<S>                                              <C>             <C>             <C>             <C>               <C>


ASSETS
CURRENT ASSETS:
   Cash and cash equivalents                      $   8,074                       $    2,373                       $    10,447
   Accounts receivable, net                          49,565       $    2,095             237                            51,897
   Prepaid expenses and other current assets          3,509               14              80                             3,603
   Deferred income taxes                              3,202              168                                             3,370
                                                  ---------       ----------     -----------      ------------     -----------
      Total current assets                           64,350            2,277           2,690                            69,317

PROPERTY AND EQUIPMENT, NET                          67,267            3,271          19,709                            90,247
OTHER ASSETS:
   Investment in and advances to subsidiaries       314,983                                       $   (314,983)              0
   Station investment notes receivable               69,920                                                             69,920
   Goodwill - net                                   200,449           20,457          11,243                           232,149
   FCC licenses - net                                                233,558                                           233,558
   Other intangible assets - net                     24,178              327           3,048                            27,553
   Deposits and other long-term assets               25,589               48             427                            26,064
   Net assets held under exchange agreement                           47,495                                            47,495
                                                  ---------       ----------     -----------      ------------     -----------
      Total other assets                            635,119          301,885          14,718          (314,983)        636,739
                                                  ---------       ----------     -----------      ------------     -----------
TOTAL ASSETS                                      $ 766,736       $  307,433     $    37,117      $   (314,983)    $   796,303
                                                  ---------       ----------     -----------      ------------     -----------


                                       19

<PAGE>

<CAPTION>

                       AMERICAN RADIO SYSTEMS CORPORATION

         NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                                   (Continued)

10.      Subsidiary Guarantees - (continued):


                             Unaudited Condensed Consolidating Balance Sheet
                                            December 31, 1996
                                          (Dollars in thousands)

  
                                                   Parent and     Guarantor      Non-guarantor                    Consolidated  
                                                  its Divisions   Subsidiaries   Subsidiaries     Eliminations       Totals
                                                  -------------   ------------   -------------    ------------     ------------
<S>                                              <C>             <C>             <C>             <C>               <C>

LIABILITIES AND STOCKHOLDERS'
   EQUITY
CURRENT LIABILITIES:
   Current maturities of long-term debt           $     444                      $       117                       $       561
   Accounts payable and accrued expenses             31,087              656           2,027                            33,770
                                                  ---------       ----------     -----------      ------------     -----------
     Total current liabilities                       31,531              656           2,144                            34,331

NON-CURRENT LIABILITIES:
   Deferred income taxes                             11,405           21,521             279                            33,205
   Other long-term liabilities                        2,129                               20                             2,149
   Long-term debt                                   325,693                            4,418                           330,111
                                                  ---------       ----------     -----------      ------------     -----------
      Total non-current liabilities                 339,227           21,521           4,717                           365,465

MINORITY INTEREST  IN SUBSIDIARY                       (185)                             529                               344

STOCKHOLDERS'  EQUITY:
   Preferred Stock                                        1                                                                  1
   Common Stock                                         211                              500      $       (500)            211
   Additional paid-in capital                       390,731          284,649          29,817          (314,466)        390,731
   Unearned compensation                               (297)                                                              (297)
   Retained earnings                                  5,955              607            (590)              (17)          5,955
   Treasury stock                                      (438)                                                              (438)
                                                  ---------       ----------     -----------      ------------     -----------
      Total stockholders' equity                    396,163          285,256          29,727          (314,983)        396,163
                                                  ---------       ----------     -----------      ------------     -----------
TOTAL LIABILITIES AND STOCKHOLDERS'
EQUITY                                            $ 766,736       $  307,433     $    37,117      $   (314,983)    $   796,303
                                                  =========       ==========     ===========      ============     ===========

                                       20

<PAGE>
<CAPTION>


                       AMERICAN RADIO SYSTEMS CORPORATION

         NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                                   (Continued)

10.      Subsidiary Guarantees - (continued):


                     Unaudited Condensed Consolidating Statement of Operations
                             For the Six Months Ended June 30, 1996
                                      (Dollars in thousands)


                                                   Parent and     Guarantor      Non-guarantor                    Consolidated  
                                                  its Divisions   Subsidiaries   Subsidiaries     Eliminations       Totals
                                                  -------------   ------------   -------------    ------------     ------------
<S>                                              <C>             <C>             <C>             <C>               <C>

Net broadcast revenues                            $  59,873                                                        $    59,873
Tower revenues                                          400                      $       820                             1,220
License fees                                         (1,030)      $    1,030                                               
                                                  ---------       ----------     -----------      ------------     -----------
Total net revenues                                   59,243            1,030             820                            61,092


Operating expenses excluding depreciation and
     amortization, net local marketing agreement
     corporate general and administrative
     expenses                                        42,077                4             693                            42,774   
Net local marketing agreement expenses                2,589                                                              2,589     
Depreciation and amortization                         3,490            1,026             323                             4,839
Corporate general and administrative                  2,340                                                              2,340 
                                                  ---------       ----------     -----------      ------------     -----------
Operating income                                      8,747                             (196)                            8,550

Other income (expense):
  Interest income                                     3,638                                2                             3,640
  Interest expense                                   (8,953)                             (11)                           (8,964)
  Gain (loss) on sale of assets and other               (36)                                                               (36)
  Equity in (loss) of subsidiaries, net of income
     taxes recorded at the subsidiary level       $    (113)                                      $        113              
                                                  ---------       ----------     -----------      ------------     -----------
Income (loss) before income taxes                     3,283                             (205)              113           3,191
Provision (benefit) for income taxes                  1,528                              (92)                            1,436
                                                  ---------       ----------     -----------      ------------     -----------
Net income                                        $   1,755       $        0     $      (113)     $        113     $     1,755
                                                  =========       ==========     ===========      ============     ===========




                                       21

<PAGE>

<CAPTION>

                                 AMERICAN RADIO SYSTEMS CORPORATION

                   NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                                             (Continued)

10.      Subsidiary Guarantees - (continued):

                   Unaudited Condensed Consolidating Statement of Operations
                             For the Three Months Ended June 30, 1996
                                      (Dollars in thousands)


                                                  Parent and     Guarantor      Non-guarantor                    Consolidated  
                                                  its Divisions   Subsidiaries   Subsidiaries     Eliminations       Totals
                                                  -------------   ------------   -------------    ------------     ------------
<S>                                              <C>             <C>             <C>             <C>               <C>

Net broadcast revenues                            $  36,704                                                        $    37,250
Tower revenues                                          194                      $       546                               194
License fees                                           (527)      $      527                                                
                                                  ---------       ----------     -----------      ------------     -----------
Total net revenues                                   36,371              527             546                            37,444


Operating expenses excluding depreciation and
     amortization, net local marketing agreement
     corporate general and administrative
     expenses                                        24,209                2             439                            24,650   
Net local marketing agreement expenses                2,139                                                              2,139     
Depreciation and amortization                         1,902              525             212                             2,639
Corporate general and administrative                  1,259                                                              1,259 
                                                  ---------       ----------     -----------      ------------     -----------
Operating income                                      6,862                             (105)                            6,757

Other income (expense):
  Interest income                                     1,523                                                              1,523
  Interest expense                                   (4,252)                              (9)                           (4,261)
  Gain (loss) on sale of assets and other                (1)                                                                (1)
  Equity in (loss) of subsidiaries, net of income
     taxes recorded at the subsidiary level       $     (63)                                      $         63              
                                                  ---------       ----------     -----------      ------------     -----------
Income (loss) before income taxes                     4,069                             (114)               63           4,018
Provision (benefit) for income taxes                  1,858                              (51)                            1,807
                                                  ---------       ----------     -----------      ------------     -----------
Net income                                        $   2,211       $        0     $       (63)     $         63     $     2,211
                                                  =========       ==========     ===========      ============     ===========




                                      22

<PAGE>


<CAPTION>


                               AMERICAN RADIO SYSTEMS CORPORATION

                   NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                                             (Continued)


10.      Subsidiary Guarantees - (continued):


                    Unaudited Condensed Consolidating Statement of Cash Flows
                             For the Six Months Ended June 30, 1996
                                     (Dollars in thousands)


                                                    Parent and     Guarantor     Non-guarantor                     Consolidated  
                                                  its Divisions   Subsidiaries   Subsidiaries     Eliminations       Totals
                                                  -------------   ------------   -------------    ------------     ------------
<S>                                              <C>             <C>             <C>             <C>               <C>

Cash flows from operating activities              $  (6,184)                     $       661                       $    (5,523)
                                                  ---------       ----------     -----------      ------------     -----------
Investing Activities:
  Payments for purchase of property and
        equipment and intangible assets              (4,542)                          (2,795)                           (7,337)
  Proceeds from radio station sales                  18,000                                                             18,000
  Payments for radio station acquisitions           (67,777)                                                           (67,777)
  Payments for tower related acquisitions                                             (5,045)                           (5,045)
  Payment for station investment notes
     receivable                                     (27,779)                                                           (27,779)
  Deposits and other long-term assets               (23,651)                             (54)                          (23,705)
                                                  ---------       ----------     -----------      ------------     -----------
Cash flows used by investing activities            (105,749)                          (7,894)                         (113,643)
                                                  ---------       ----------     -----------      ------------     -----------


Financing Activities:
  Repayment of Credit Agreements                   (151,500)                                                          (151,500)
  Repayment of other obligations                       (561)                              (7)                             (568)
  Net proceeds from equity offerings and
     options                                        248,198                                                            248,198
  Net proceeds from exchangeable preferred
     stock                                          168,321                                                            168,321
  Investment in and advances to subsidiaries                                           7,292            (7,292)             
                                                  ---------       ----------     -----------      ------------     -----------
Cash flows from financing activities                264,458                            7,285            (7,292)        264,451
                                                  ---------       ----------     -----------      ------------     -----------    
Decrease in cash and cash equivalents               152,525                               52            (7,292)        145,285

Cash and cash equivalents at beginning
    of period                                         3,890                                                              3,890
                                                  ---------       ----------     -----------      ------------     -----------
Cash and cash equivalents at end of period        $ 156,415       $        0     $        52      $     (7,292)    $   149,175
                                                  =========       ==========     ===========      ============     ===========


                                       23
</TABLE>

<PAGE>


ITEM 2.       MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND
              RESULTS OF OPERATIONS

This  report  contains   "forward-looking   statements"   including   statements
concerning  projections,  plans,  objectives,  future events or performance  and
underlying  assumptions and other  statements which are other than statements of
historical  fact. The Company wishes to caution  readers that certain  important
factors may have affected and could in the future  affect the  Company's  actual
results and could cause the Company's  actual results for subsequent  periods to
differ materially from those expressed in any forward-looking  statement made by
or on behalf of the Company.  These important factors include among others,  the
following:  (i)  any  adverse  change  in the  laws,  regulations  and  policies
governing the operation, ownership and acquisition of radio stations, including,
but not limited to, those  established by Congress,  the Federal  Communications
Commission and the Antitrust Division of the U.S. Justice  Department;  and (ii)
the Company's financial leverage as a result of borrowings under the 1997 Credit
Agreement,  which  bears  interest at variable  rates,  and the  issuance of the
Senior  Subordinated  Notes could make it  vulnerable to an increase in interest
rates or a downturn  in the  operating  performance  of its radio  stations or a
downturn in economic conditions.

As of June 30, 1997, the Company owned and/or operated  approximately  100 radio
stations.  See the Form 10-K and the unaudited condensed  consolidated financial
statements   for  a  description   of  the  1997  and  1996  station  and  tower
acquisitions.   As  of  June  30,  1996,  the  Company  owned  and/or   operated
approximately  fifty  radio  stations.  These  transactions  have  significantly
affected operations for the three and six months ended June 30, 1997 as compared
to the three and six months ended June 30, 1996.

Three months ended June 30, 1997 and 1996

Net  revenues  were  $100.1  million  for the three  months  ended June 30, 1997
compared  to $37.4  million  for the same three  months in 1996,  an increase of
$62.7 million or 167.6%.  This increase was  attributable  to revenue  growth in
some of the Company's  existing markets and, to a more substantial  extent,  the
impact of the EZ Merger and other  acquisitions that occurred in the latter half
of 1996 and first half of 1997.

Station operating  expenses  excluding net local marketing  agreement  expenses,
depreciation and amortization and corporate general and administrative  expenses
were $63.8  million for the three months  ended June 30, 1997  compared to $24.7
million  for the same period in 1996,  an  increase of $39.1  million or 158.3%.
This  increase  was due to the impact of  increased  costs  associated  with the
Company's revenue growth.

Net local  marketing  agreement  revenues were $0.6 million for the three months
ended June 30, 1997 compared to net local marketing  agreement  expenses of $2.1
million for the same three months in 1996.  Local marketing  agreement  revenues
for the three months ended June 30, 1997 are presented net of approximately $0.2
million of expenses incurred under such agreements and local marketing agreement
expenses for the same period in 1996 are  presented  net of  approximately  $0.3
million of revenues earned under such agreements. The change in the balances for
each  period  are  based on the  timing  of  pending  station  acquisitions  and
dispositions.

Depreciation  and  amortization was $16.1 million and $2.6 million for the three
months ended June 30, 1997 and June 30, 1996, respectively, an increase of $13.5
million.  This  increase was primarily  attributable  to the impact of increased
expenses  associated  with the increase in depreciable  and  amortizable  assets
resulting from the 1996 and 1997 station  acquisitions  and, to a lesser extent,
the impact of increased  values  being  ascribed to FCC licenses in the purchase
price allocation of 1997 station acquisitions.



                                       24

<PAGE>


Results of Operations - (continued):

Corporate general and administrative  expenses increased to $2.2 million for the
three months  ended June 30, 1997,  from $1.3 million for the three months ended
June 30, 1996, an increase of $0.9 million or 69.2%. This increase was primarily
attributable  to the higher  personnel  costs  associated  with  supporting  the
Company's greater number of stations.

Interest  expense  was $15.7  million for the three  months  ended June 30, 1997
compared to $4.3 million for the 1996 period, an increase of $11.4 million.  The
increase  is related  to higher  borrowing  levels  under the  Company's  credit
agreements  in 1997 as  compared to 1996 which  resulted  from the 1996 and 1997
acquisitions.

Interest  income was $0.5  million  for the three  months  ended  June 30,  1997
compared to $1.5 million for the three months ended June 30, 1996, a decrease of
$1.0 million.  The decrease is attributable to lower investable cash balances in
1997 and higher interest income earned on certain  station  investment  notes in
1996 as compared to 1997.

The income  tax  provision  for the three  months  ended June 30,  1997 was $1.3
million as compared to $1.8 million for three  months  ended June 30, 1996.  The
effective  tax rate for the three months  ended June 30, 1997 was  approximately
35.2%  compared to 45.0% in 1996.  The  effective  tax rate for the three months
ended June 30,  1997 is  reflective  of the  cumulative  adjustment  required to
adjust to the estimated annual effective rate of 55%. The effective rate in 1996
is reflective of the impact of permanent differences,  principally  amortization
of non-deductible goodwill on certain stock acquisitions.

Preferred  stock  dividends  for the three  months ended June 30, 1997 were $8.1
million  compared to $0.1  million in 1996.  The  dividends  for the 1997 period
include $2.4  million of dividends  attributable  to the  Convertible  Preferred
Stock issued in late June 1996 and $5.7 million of dividends attributable to the
Cumulative  Exchangeable  Preferred  Stock  issued  in late  January  1997.  The
dividends for the 1996 period include $0.1 million of dividends  attributable to
the Convertible Preferred Stock.

Net loss applicable to common stockholders was $5.7 million for the three months
ended June 30, 1997 compared to a net income  applicable to common  stockholders
of $2.1 million for the three  months  ended June 30,  1996,  as a result of the
factors discussed above.

Six months ended June 30, 1997 and 1996

Net revenues were $154.3 million for the six months ended June 30, 1997 compared
to $61.1  million for the same six months in 1996,  an increase of $93.2 million
or 152.5%.  This  increase  was  attributable  to revenue  growth in some of the
Company's existing markets and, to a more substantial  extent, the impact of the
EZ Merger in 1997 and acquisitions  that occurred in the latter half of 1996 and
first half of 1997.

Station operating  expenses  excluding net local marketing  agreement  expenses,
depreciation and amortization and corporate general and administrative  expenses
were  $104.7  million for the six months  ended June 30, 1997  compared to $42.8
million  for the same period in 1996,  an  increase of $61.9  million or 144.6%.
This  increase  was due to the impact of  increased  costs  associated  with the
Company's revenue growth.

Net local  marketing  agreement  expenses  were $1.3  million for the six months
ended June 30, 1997 compared to $2.6 million for the same six months in 1996, an
increase of $1.3 million.  Local marketing agreement expenses for the six months
ended June 30, 1997 and 1996 are presented net of approximately $2.0 million and
$0.3 million,  respectively of revenues earned under such agreements. The change
in the  balances  for each  period are based on the  timing of  pending  station
acquisitions and dispositions.


                                       25

<PAGE>

Results of Operations - (continued):

Depreciation  and  amortization  was $23.6  million and $4.8 million for the six
months ended June 30, 1997 and June 30, 1997, respectively, an increase of $18.8
million.  This  increase was primarily  attributable  to the impact of increased
expenses  associated  with the increase in depreciable  and  amortizable  assets
resulting from the 1996 and 1997 station  acquisitions  and, to a lesser extent,
the impact of increased  values  being  ascribed to FCC licenses in the purchase
price allocation of 1997 station acquisitions.

Corporate general and administrative  expenses increased to $3.9 million for the
six months  ended June 30, 1997 from $2.3  million for the six months ended June
30, 1996,  an increase of $1.6  million or 69.6%.  This  increase was  primarily
attributable  to the higher  personnel  costs  associated  with  supporting  the
Company's greater number of stations.

Interest  expense  was $23.2  million  for the six months  ended  June 30,  1997
compared to $9.0  million for the 1996 period,  an increase of $14.2  million or
157.8%.  The increase is related to higher  borrowing levels under the Company's
credit  agreements in 1997 as compared to 1996 which  resulted from the 1996 and
1997 acquisitions.

Interest income was $1.1 million for the six months ended June 30, 1997 compared
to $3.6  million  for the six months  ended June 30,  1996,  a decrease  of $2.5
million.  The decrease is attributable to lower investable cash balances in 1997
and higher interest income earned on certain station investment notes in 1996 as
compared to 1997.

The income tax benefit for the six months  ended June 30, 1997 was $0.4  million
as compared to a provision  of $1.4  million for six months ended June 30, 1996.
The effective tax rate for the six months ended June 30, 1997 was  approximately
55.2% compared to 45.0% in 1996. The higher effective rate in 1997 is due to the
effect of permanent  differences,  principally  amortization  of  non-deductible
goodwill on the EZ merger.  The effective tax rate for the six months ended June
30, 1997  includes the  cumulative  adjustment  required to adjust the estimated
annual effective rate.

The extraordinary  loss for the six months ended June 30, 1997 was $1.6 million,
net of a $1.0  million  tax  benefit.  The  extraordinary  loss was a result  of
certain  deferred  financing  costs  written off in January 1997 pursuant to the
extinguishment of debt under the Company's previous credit agreement.

Preferred  stock  dividends  for the six months  ended June 30,  1997 were $14.3
million compared to $0.1 milion for the 1996 period.  The dividends for the 1997
period  include  $4.8  million  of  dividends  attributable  to the  Convertible
Preferred  Stock  issued  in late  June  1996  and  $9.5  million  of  dividends
attributable  to the  Cumulative  Exchangeable  Preferred  Stock  issued in late
January  1997.  The  dividends  for the 1996  period  include  $0.1  million  of
dividends attributable to the Convertible Preferred Stock.

Net loss applicable to common  stockholders was $16.2 million for the six months
ended June 30, 1997 compared to net income applicable to common  stockholders of
$1.6 million for the six months ended June 30, 1996,  as a result of the factors
discussed above.

Liquidity and Capital Resources

The Company's  liquidity  needs arise from its  acquisition-related  activities,
debt service,  working  capital,  capital  expenditures  and dividend  payments.
Historically,   the  Company  has  met  its  operational  liquidity  needs  with
internally   generated   funds  and  has  financed  the   acquisition  of  radio
broadcasting properties and tower related properties,  including related working
capital needs,  with a combination of bank borrowings and proceeds from the sale
of the Company's equity and debt  securities.  For the six months ended June 30,
1997, cash flows used from operating  activities was $30.6 million,  as compared
to $5.5 million for the six months ended June 30, 1996.  The change is primarily
attributable to working capital  investments  related to station acquisition and
growth.

                                       26


<PAGE>


Liquidity and Capital Resources - (continued)

Cash flows used for investing  activities were $422.6 million for the six months
ended June 30, 1997 as compared to $113.6  million for the six months ended June
30, 1996. The increase is attributable to the increased  acquisition activity in
1997 as compared to 1996.

Cash  provided by  financing  activities  was $457.2  million for the six months
ended June 30, 1997 as compared to $264.5  million for the six months ended June
30, 1996.  The  increase  in 1997  is due to the  exchangeable  preferred  stock
offering described below and the impact of borrowings under the Company's credit
agreements.

Offering:  In January  1997,  the  Company  consummated  a private  offering  of
2,000,000  shares  of 11 3/8%  Cumulative  Exchangeable  Preferred  Stock,  $100
liquidation preference per share (Exchangeable Preferred Stock). Net proceeds to
the Company from the offering were approximately $192.2 million. Proceeds of the
offering  were used  initially  to repay  indebtedness  and  thereafter  to fund
acquisitions. Dividends on the Exchangeable Preferred Stock are cumulative at an
annual  rate of 11 3/8%  (equivalent  to  $11.375  per  share)  and are  payable
quarterly in cash,  or, at the  Company's  election,  on or prior to January 15,
2002, with the issuance of additional shares.  The Exchangeable  Preferred Stock
possesses mandatory  redemption features and has been classified  accordingly in
the  financial  statements.   See  the  Form  10-K  for  a  description  of  the
Exchangeable Preferred Stock.

Credit  Agreements:  As of June 30, 1997, the Company had  approximately  $760.6
million  of  total  long-term  debt  (including  the  current  portion  thereof)
outstanding.   This  included   approximately   $430.0   million  of  borrowings
outstanding under the Company's and the Tower Subsidiary's credit agreements and
$325.0 million outstanding under Senior Subordinated Notes. In January 1997, the
Company  entered into new credit  agreements with a syndicate of banks (the 1997
Credit Agreement) which replaced the $300.0 million 1995 Credit  Agreement.  The
1997 Credit Agreement consists of two separate lending agreements, providing for
facilities  consisting of a $550.0 million reducing revolver credit facility,  a
$200.0 million  revolving credit converting to a term loan facility and a $150.0
million term loan facility, which was available only to repurchase, if required,
certain note  obligations  of EZ which were assumed by the Company in connection
with the EZ  Merger.  As  described  below,  the  Company  was not  required  to
repurchase any of the 9.75% Notes,  and therefore such agreement was canceled in
May 1997. The terms of the 1997 Credit Agreement are described in the Form 10-K.

In November 1996, the Tower  Subsidiary  entered into a credit  agreement (Tower
Credit  Agreement) that provides the Tower  Subsidiary with a $70.0 million loan
commitment  and  an  incremental  $20.0  million  loan,  contingent  upon  Tower
obtaining  additional equity. As of June 30, 1997 approximately $21.5 million of
borrowings were outstanding under the Tower Credit  Agreement.  The terms of the
Tower Credit  Agreement are described in the Form 10-K. The Tower  Subsidiary is
in the  process of  negotiating  the terms of a new credit  facility  which will
increase the amount of available  borrowings to $250.0 million.  While the Tower
Subsidiary  expects to execute a credit agreement in the third or fourth quarter
of 1997, there can be no assurance that such an agreement will be executed.

In order to finance acquisitions of radio stations, tower related properties and
for general corporate purposes, the Company has borrowed and expects to continue
to borrow  under its credit  agreements.  As part of the EZ Merger,  the Company
assumed EZ's obligations with respect to $150.0 million  principal amount of the
9.75%  Notes  and  repaid  all  borrowings  under the EZ  credit  facility  with
borrowings from the 1997 Credit Agreement.  As required by the closing of the EZ
Merger, the Company was required to offer to purchase the 9.75% Notes at 101% of
their principal  amount.  Such offer expired in May 1997 and, no such notes were
tendered for repurchase.

A substantial portion of the Company's cash flow from operations is required for
debt  service.  However,  the Company's  leverage  could make it vulnerable to a
downturn in the operating performance of its radio stations, tower properties or
a downturn in economic conditions.


                                       27

<PAGE>


Liquidity and Capital Resources - (continued):

The Company  believes that its cash flows from  operations will be sufficient to
meet  its  quarterly  dividends, debt  service  requirements  for  interest  and
scheduled  payments of principal  under the 1997 Credit  Agreement and its other
debt obligations.  If such cash flow is not sufficient to meet such debt service
requirements,  the Company may be required to sell equity securities,  refinance
its  obligations  or dispose of one or more of its  properties  in order to make
such  scheduled  payments.  There can be no assurance  that the Company would be
able to effect any of such transactions on favorable terms.

The  Company's  working  capital  needs  fluctuate  throughout  the  year due to
industry-wide  seasonality  and its  broadcast  of sporting  events at different
times during the year. The Company historically has had sufficient cash from its
operations  to meet its working  capital  needs,  apart from needs  generated by
newly  acquired  properties,  and  believes  that  it has  sufficient  financial
resources available to it, including  borrowing under the credit agreements,  to
finance operations for the foreseeable future.

The Company has entered into numerous station and tower  acquisition and related
agreements  (see the  Form  10-K and the  Notes  to the  Condensed  Consolidated
Financial  Statements).  The consummation of each of these agreements is subject
to, among other  things,  FCC approval and in some cases  expiration  or earlier
termination  of the HSR Act waiting  period and the  negotiation  of  definitive
agreements.  Unless  otherwise  noted,  the Company intends to effect all of the
transactions  as soon as the  necessary  approvals  are  obtained.  The  Company
intends to finance the  acquisitions  with available cash,  borrowings under the
credit agreements, and, in certain cases, issuance of equity securities.

The Company made approximately $17.1 million in capital  expenditures in the six
months ended June 30, 1997, principally related to tower construction and office
consolidations.   The  Company  expects  capital  expenditures  in  1997  to  be
approximately  $30.0  million,  consisting  principally  of tower  construction,
office  consolidations  and ongoing technical  improvements.  To the extent that
funds generated from operations,  or available cash, are insufficient to finance
non-recurring  capital  expenditures,  the  Company  would  seek to  borrow  the
necessary funds under the credit agreements.

Inflation

The impact of inflation on the Company's  operations has not been significant to
date.  However,  there can be no assurance  that a high rate of inflation in the
future  would  not have  material  adverse  effect  on the  Company's  operating
results.

Recent Accounting Pronouncements

In  March  1997,  the  Financial  Accounting  Standards  Board  (FASB)  released
Statement of Financial Accounting Standards (FAS) No. 128, "Earnings Per Share",
(FAS 128) which the Company  will adopt in the fourth  quarter of 1997.  FAS 128
will require the Company to restate all previously  reported  earnings per share
information to conform with the new pronouncement's requirements.

In June 1997,  the FASB released FAS No. 130  "Reporting  Comprehensive  Income"
(FAS No. 130), and FAS No. 131 "Disclosures about Segments of and Enterprise and
Related Information", (FAS 131). These pronouncements will be effective in 1998.
FAS 130 establishes standards for reporting  comprehensive income items and will
require that the Company provide a separate  statement of comprehensive  income;
reported financial statement amounts will not be affected by this adoption.  FAS
131 established standards for reporting information about the operating segments
in its annual report and interim reports.


                                       28

<PAGE>


PART II.   OTHER INFORMATION


Item 1. - Legal Proceedings

In the normal  course of business,  the Company is subject to certain  suits and
other matters.  Management  believes that the eventual resolution of any pending
matters,  either  individually  or in the  aggregate,  will not have a  material
effect on financial position, liquidity or results of operations.

Item 2. - Changes in Securities

On June 24, 1997,  the Company  issued 100 shares of Class A Common Stock shares
to Kelly  Maguire as  consideration,  in part for the  services  rendered by her
father, John Maguire, a Vice President and General  Manager, through March 1997.
The Company  issued such shares  pursuant  to the  exemption  from  registration
provided by Section 4(2) of the Securities Act.

Item 4. - Submission of Matters to a Vote of Security Holders.

The 1996 Annual Meeting of Stockholders  was held on Thursday,  May 29, 1997, to
consider  and act upon the  following  matters.  The results of the  stockholder
voting were as follows:

     1.  To elect ten  Directors,  including two  "independent"  directors to be
         elected by the holders of Class A Common Stock,  voting separately as a
         class,  for the ensuing year or until their  successors are elected and
         qualified;

                                              Votes              Votes
                                            Cast For           Withheld
                                           ----------          --------
Steven B. Dodge                            56,658,419            98,345
Thomas H. Stoner                           56,658,419            98,345
Alan L. Box                                56,658,419            98,345
Joseph L. Winn                             56,658,419            98,345
Charlton H. Buckley                        56,658,419            98,345
Arnold L. Chavkin                          56,658,419            98,345
James H. Duncan, Jr.*                      13,265,409            98,345
Arthur C. Kellar                           56,658,419            98,345
Charles D. Peebler, Jr.*                   13,265,409            98,345
Lance R. Primis                            56,658,419            98,345


         * In  accordance  with the  Company's  Articles of  Incorporation,  the
           holders of Class A Common Stock, exclusive of all other stockholders,
           are  entitled to elect two of the  Company's  independent  directors.
           Messrs.   Duncan  and  Peebler  were  nominated  as  the  independent
           directors and elected by the holders of the Class A Common Stock.

                                       29

<PAGE>


Item 4. - Submission of Matters to a Vote of Security Holders - (continued).

         2.  To approve an amendment to the Company's Amended and Restated Stock
             Option Plan to increase the  aggregate  number of shares of Class A
             and Class B Common Stock  authorized for issuance  thereunder  from
             2,000,000 to 3,000,000;

                  For                Against              Abstain
              51,086,860            4,221,909            1,447,995
           
    
         3.  To ratify the selection by the Board of Directors of Deloitte & 
             Touche LLP as the Company's independent   auditors for 1997;

                  For                 Against             Abstain
              56,677,927               20,729             58,108
             
     


Item 5. - Other Information.

         On July 21, 1997, the Company and American Radio Systems License Corp.,
entered into an Asset Exchange agreement with Entertainment Communications, Inc.
(Entercom) and ECI License Company L.P. (ECI) pursuant to which the Company will
acquire  substantially  all the  assets of  KLOU-FM in St.  Louis,  Missouri  in
exchange for substantially all the assets of KUDL-FM and WDAF-AM in Kansas City,
Missouri  and $7.0  million.  In  addition,  the Company  entered  into an Asset
Purchase agreement with Entercom to sell substantially all the assets of KCTC-AM
for  approximately  $4.0 million.  Consummation of both transactions are subject
to, among other things, the approval of the FCC.  For more  information  see the
Company's  press  release,  dated July 21,  1997 which is  attached  herewith as
Exhibit 99.1



                                       30


<PAGE>


Item 6. - Exhibits and Reports on Form 8-K


(a)             Exhibits

          Listed  below  are the  exhibits  which are filed as part of this Form
10-Q (according to the number  assigned to them in Item 601 of Regulation  S-K).
Each exhibit market by a (*) is incorporated  by reference to American's  Report
on Form 10-Q for the three  months  ended  March 31,  1997.  Exhibit  numbers in
parenthesis refer to the exhibit number in the applicable filing.

<TABLE>
<CAPTION>

Exhibit
  No.                              Description of Document

<S>              <C>                                                               <C>
10.1a              Asset Purchase Agreement by and between American Tower
                       Systems, Inc. ("American Tower") and Communication
                       Systems Development, Inc., dated as of May 27, 1997          Filed herewith as Exhibit 10.1a       
10.1b              Agreement of Limited Liability Company of Communication
                       Systems Development, LLC, by and among American Tower
                       and Communication Development Corporation, Inc., 
                       dated as of May 30, 1997                                     Filed herewith as Exhibit 10.1b      
10.2               Asset Purchase Agreement by and between American Tower
                       and B & E Associates, Inc., dated as of May 27, 1997         Filed herewith as Exhibit 10.2
10.3               Asset Purchase Agreement by and between American Tower
                       and Towers L.L.C., dated as of May 13, 1997                  Filed herewith as Exhibit 10.3      
10.4a              Asset Purchase Agreement by and between American Tower
                       and Diablo Communications, Inc. ("Diablo"),
                       dated as of July 8, 1997                                     Filed herewith as Exhibit 10.4a
10.4b              Securities Purchase Agreement by and between American
                       Tower and Diablo, dated as of March 20, 1997 
                       relating to Notes due 2000 of Diablo                         Filed herewith as Exhibit 10.4b  
10.4c              Asset Purchase Agreement by and between American Tower
                       and Diablo Communications of Southern California, Inc. 
                       ("DCSC"), dated as of July 8, 1997                           Filed herewith as Exhibit 10.4c
10.4d              Securities Purchase Agreement by and between American
                       Tower and DCSC, dated as of March 20, 1997
                       relating to Notes due 2000 of DCSC                           Filed herewith as Exhibit 10.4d
10.4e              Amendment dated August 7, 1997, to Securities Purchase 
                      Agreement by and between American Tower, Diablo 
                      and DCSC, dated July 8, 1997                                  Filed herewith as Exhibit 10.4e
10.5               Asset Purchase Agreement dated as May 27, 1997 between 
                       the Company, Precision Media Corporation, a Delaware 
                       corporation ("Precision Media")                              Filed herewith as Exhibit 10.5   
10.6               Time Brokerage Agreement, dated as July 1, 1997 by and
                       between the Company and Precision Media                      Filed herewith as Exhibit 10.6   
10.7               Asset Purchase Agreement, dated as June 6, 1997, by and
                       between the Company and Michael A. McMurray and
                       Marilyn A. McMurray, d/b/a McMurray Communications,
                       an Ohio general partnership                                  Filed herewith as Exhibit 10.7   
10.8               Time Brokerage Agreement, dated as June 1, 1997 by and
                       between the Company and Jupiter Radio Partners               Filed herewith as Exhibit 10.8
10.9               Asset Purchase Agreement, dated May 14, 1997 by and
                       between the Company and Greater Boston Radio, Inc.           Filed herewith as Exhibit 10.9   
10.10              Time Brokerage Agreement, dated as May 14, 1997 between
                       Greater Boston Radio, Inc. and the Company                   Filed herewith as Exhibit 10.10  
10.11              Asset Purchase Agreement, dated as May __, 1997 by and
                       between Paxson Communications of West Palm Beach, Inc.
                       and the Company                                              Filed herewith as Exhibit 10.11 
10.12              Asset Exchange Agreement, dated June 19, 1997, by and
                       among the Company, American Radio Systems License
                       Corp ("License Corp.") Citicasters Co., Regent
                       Broadcasting of Kansas City, Inc., and Regent Licensee of
                       Kansas City, Inc.                                            Filed herewith as Exhibit 10.12  
10.13              Asset Exchange Agreement, dated July 18, 1997 by and
                       among the Company, License Corp., Entertainment
                       Communications, Inc. and ECI License Company, L.P.           Filed herewith as Exhibit 10.13  
10.14              Asset Purchase Agreement by and among the Company,
                      License Corp. and Entertainment Communications, Inc.          Filed herewith as Exhibit 10.14



                                       31

<PAGE>


 <CAPTION>

 Exhibit
   No.                              Description of Document

<S>              <C>                                                               <C>

10.15              Asset  Purchase  Agreement,  dated as July 8, 1997 by and
                       between American Tower and Suburban Cable TV Co. Inc.        Filed herewith as Exhibit 10.15         
10.16              Asset Purchase Agreement, dated as May 21, 1997, by and          
                       between American Tower and DB Consultants, Inc.              Filed herewith as Exhibit 10.16 
10.17              Asset Purchase Agreement, dated as May 7, 1997, by and
                       between the Company, American Radio Systems License
                       Corp., KKSJ, Inc. and KKSJ License, Inc.                     * (10.18)
10.18              Asset Exchange Agreement, dated April 17, 1997 by and
                       among the Company, American Radio Systems License
                       Corp., Latin Communications, Group, Inc., EXCL
                       Communications, Inc., Radio Exito, Inc. and Portland
                       Radio, Inc.                                                  * (10.20)
10.19              Asset Purchase Agreement, dated May 6, 1997 between the
                       and Stellar Communications, Inc.                             * (10.22)
11                 Statement Re Computation of Per Share Earnings                   Filed herewith as Exhibit 11    
12                 Statement Re Computation of Ratio of Earnings to Combined
                       Fixed Charges and Preferred Stock Dividends                  Filed herewith as Exhibit 12  
27                 Financial Data Schedule                                          Filed herewith as Exhibit 27
99.1               Press Release, dated July 21, 1997                               Filed herewith as Exhibit 99.1

</TABLE>


(b)      Reports on Form 8-K

   1.    Form 8-K/A (Item 7) on April 17, 1997.
   2.    Form 8-K (Items 2, 5 and 7) on April 18, 1997.
   3.    Form 8-K (Items 5 and 7) on May 30, 1997.
   4.    Form 8-K/A (Items 5 and 7) on June 12, 1997.
                                             
                                       32


<PAGE>


                                   SIGNATURES

         Pursuant to the  requirements  of the Securities  Exchange Act of 1934,
the  Registrant  has duly  caused  this report to be signed on its behalf by the
undersigned, thereunto duly authorized.



                                   AMERICAN RADIO SYSTEMS CORPORATION


Date: August 14, 1997              BY: /s/ Joseph L. Winn
                                        Joseph L. Winn
                                        Treasurer & Chief Financial Officer
                                        (Duly Authorized Officer)




Date: August 14, 1997              BY: /s/ Justin D. Benincasa
                                        Justin D. Benincasa
                                        Vice President & Corporate Controller
                                        (Duly Authorized Officer)


                                       33

                                                                   Exhibit 10.1a









                            ASSET PURCHASE AGREEMENT

                                 By and Between

                          AMERICAN TOWER SYSTEMS, INC.

                                       and

                     COMMUNICATION SYSTEMS DEVELOPMENT, INC.

                                   Dated as of

                                  May 27, 1997












<PAGE>


<TABLE>
<CAPTION>

                                                 TABLE OF CONTENTS
<S>              <C>                                                                                             <C>
 
ARTICLE 1         DEFINED TERMS...................................................................................1

ARTICLE 2         SALE AND PURCHASE OF ASSETS.....................................................................2
                  2.1      Agreement to Sell and Buy..............................................................2
                  2.2      Assumption of Liabilities and Obligations. ............................................2
                  2.3      Closing; Purchase Price................................................................3

ARTICLE 3         REPRESENTATIONS AND WARRANTIES OF CSD...........................................................4
                  3.1      Organization and Business; Power and Authority; Effect of Transaction..................4
                  3.2      Materiality............................................................................5
                  3.3      Title to Properties; Leases............................................................5
                  3.4      Compliance with Private Authorizations.................................................5
                  3.5      Compliance with Governmental Authorizations and Applicable Law.........................6
                  3.6      Intangible Assets......................................................................7
                  3.7      Insurance..............................................................................7
                  3.8      Absence of Sensitive Payments..........................................................7
                  3.9      Inapplicability of Specified Statutes..................................................7
                  3.10     Material Agreements....................................................................7
                  3.11     Material and Adverse Restrictions......................................................7
                  3.12     Broker or Finder.......................................................................8
                  3.13     Environmental Matters..................................................................8

ARTICLE 4         REPRESENTATIONS AND WARRANTIES OF ATS...........................................................8
                  4.1      Organization and Business; Power and Authority; Effect of Transaction..................8
                  4.2      Broker or Finder.......................................................................9
                  4.3      Solvency...............................................................................9
                  4.4      No Legal Action........................................................................9

ARTICLE 5         COVENANTS.......................................................................................9
                  5.1      Access to Information; Confidentiality.................................................9
                  5.2      Agreement to Cooperate.  .............................................................10
                  5.3      Public Announcements..................................................................11
                  5.4      Notification of Certain Matters.......................................................11
                  5.5      No Solicitation.......................................................................11
                  5.6      Conduct of Business by CSD Pending the Closing........................................12

ARTICLE 6         CLOSING CONDITIONS.............................................................................12
                  6.1      Conditions to Obligations of Each Party...............................................12
                  6.2      Conditions to Obligations of ATS......................................................13
                  6.3      Conditions to Obligations of CSD......................................................14

ARTICLE 7         TERMINATION, AMENDMENT AND WAIVER..............................................................15
                  7.1      Termination...........................................................................15
                  7.2      Effect of Termination.................................................................16

ARTICLE 8         INDEMNIFICATION................................................................................17
                  8.1      Survival..............................................................................17
                  8.2      Indemnification.......................................................................17
                  8.3      Limitation of Liability...............................................................18

                                                       

<PAGE>



                  8.4      Notice of Claims......................................................................18
                  8.5      Defense of Third Party Claims.........................................................18
                  8.6      Exclusive Remedy......................................................................18

ARTICLE 9         GENERAL PROVISIONS.............................................................................19
                  9.1      Amendment.............................................................................19
                  9.2      Waiver................................................................................19
                  9.3      Fees, Expenses and Other Payments.....................................................19
                  9.4      Notices...............................................................................19
                  9.5      Specific Performance; Other Rights and Remedies.......................................20
                  9.6      Severability..........................................................................20
                  9.7      Counterparts..........................................................................21
                  9.8      Section Headings......................................................................21
                  9.9      Governing Law.........................................................................21
                  9.10     Further Acts..........................................................................21
                  9.11     Entire Agreement......................................................................21
                  9.12     Assignment............................................................................21
                  9.13     Parties in Interest...................................................................22
                  9.14     Mutual Drafting.......................................................................22
</TABLE>

APPENDIX A:       Definitions

SCHEDULES:

         CSD Disclosure Schedule

EXHIBITS:

   EXHIBIT A:        Form of LLC Agreement (Section 6.2(f) and Section 6.3 (d))
   EXHIBIT B:        Form of Noncompetition Agreement Section 6.2(h))






                                      -ii-

<PAGE>


                            ASSET PURCHASE AGREEMENT

         This Asset Purchase Agreement (this "Agreement") is dated as of May 27,
1997 by and  between  American  Tower  Systems,  Inc.,  a  Delaware  corporation
("ATS"), and Communication Systems Development,  Inc., a California  corporation
("CSD").

         WHEREAS,  CSD leases  forty-two (42) sites (the  "Entitled  Sites") for
which CSD has completed all activities  related to the  acquisition and land use
entitlements and sixteen (16) sites (the "Remaining Sites") for which zoning and
other land use  approvals  have not been  obtained,  and on all sixty (60) sites
(the "Sites") it is proposed to construct and operate  communication towers (the
"CSD Central Valley Business");

         WHEREAS,  ATS and CSD desire to form a limited  liability company under
the laws of the State of Delaware  ("LLC")  pursuant to an  agreement of limited
liability  company  substantially  in the form of Exhibit A attached  hereto and
made a part hereof (the "LLC Agreement");

         WHEREAS,  ATS desires to purchase  from CSD, and CSD desires to sell to
ATS, an undivided  seventy percent (70%) interest in the CSD Assets on the terms
and conditions hereinafter set forth;

         WHEREAS,  ATS and CSD desire to transfer to LLC, and LLC shall  assume,
all of their respective right,  title and interest in the CSD Assets so that the
CSD Assets will be ultimately owned and operated by LLC; and

         WHEREAS, prior to the execution and delivery of this Agreement, ATS and
CSD have entered into an escrow agreement (the "Escrow Agreement") with The Bank
of Stockton,  Stockton,  California (the "Escrow Agent"),  pursuant to which ATS
has made a deposit of $100,000 (the "Escrow Deposit");

         NOW,  THEREFORE,  in  consideration  of  the  above  premises  and  the
covenants and agreements contained herein, the parties,  intending to be legally
bound, do hereby covenant and agree as follows:


                                    ARTICLE 1

                                  DEFINED TERMS

         As used  herein,  unless  the  context  otherwise  requires,  the terms
defined in  Appendix A shall have the  respective  meanings  set forth  therein.
Terms defined in the singular  shall have a comparable  meaning when used in the
plural,  and vice  versa,  and the  reference  to any gender  shall be deemed to
include all genders.  Unless otherwise  defined or the context otherwise clearly
requires,  terms for which  meanings are provided in this  Agreement  shall have
such  meanings  when used in the CSD  Disclosure  Schedule  and each  Collateral
Document  executed  or required  to be  executed  pursuant  hereto or thereto or
otherwise delivered,  from time to time, pursuant hereto or thereto.  References
to "hereof", "herein" or similar terms are intended to refer to the Agreement as
a whole and not a  particular  Section,  and  references  to "this  Section" are
intended to refer to the entire Section and not a particular subsection thereof.
The term "either party" shall, unless the context otherwise  requires,  refer to
CSD and ATS.


<PAGE>

                                    ARTICLE 2

                           SALE AND PURCHASE OF ASSETS

         2.1 Agreement to Sell and Buy.  Subject to the terms and conditions set
forth in this Agreement, CSD hereby agrees to sell, assign, transfer and deliver
to ATS at the Closing,  and ATS agrees to purchase at the Closing,  an undivided
seventy percent (70%) interest in the CSD Assets, free and clear of any Liens of
any  nature  whatsoever  except  for  Permitted  Liens.  For  purposes  of  this
Agreement, the term "CSD Assets" shall mean all of the Entitled Sites and all of
the  Remaining  Sites (a true,  correct and accurate list of all of which is set
forth  in  Section  2.1 of the  CSD  Disclosure  Schedule),  together  with  all
Governmental  Authorizations,  Private  Authorizations,  Material Agreements and
other  Contracts  related  thereto  (a  true,   correct  and  complete  list  or
description of which is set forth in the relevant sections of the CSD Disclosure
Schedule).

         2.2 Assumption of Liabilities and Obligations.

         (a) At the Closing,  LLC shall assume and agree to pay,  discharge  and
perform any and all  obligations and  liabilities  that are directly  associated
with or related  to the CSD  Assets  that  become  due after the  Closing  Date,
including, but not limited to, Pro Ratable Taxes and all lease payments that are
due and owing for any of the Entitled  Sites and the  Remaining  Sites (the "CSD
Assumed  Obligations");  provided,  however, that notwithstanding the foregoing,
ATS shall not assume and agree to pay, and shall not be  obligated  with respect
to, the CSD Nonassumed Obligations.

         (b) LLC shall  not  assume or become  obligated  to  perform  any debt,
liability  or  obligation  of CSD  relating  to any  of  the  following  matters
(collectively, the "CSD Nonassumed Obligations"):

                  (i)  the  ownership  or  operation  of the CSD  Assets  or the
         conduct of the CSD Central  Valley  Business prior to the Closing Date,
         including without  limitation Taxes (other than Pro Ratable Taxes), any
         Legal  Actions  or other  Claims  and any  obligations  or  liabilities
         relating to Environmental Law;

                  (ii) any  obligations or  liabilities  under the CSD Assumable
         Agreements relating to the period prior to the Closing; and

                  (iii) those  required to be  disclosed  in the CSD  Disclosure
         Schedule  which are not so disclosed or which,  if  disclosed,  Section
         2.2(b)(iii)  of  the  CSD  Disclosure   Schedule  indicates  that  such
         obligation or liability will not be assumed.

All  CSD  Nonassumed  Obligations  shall  remain  and  be  the  obligations  and
liabilities solely of CSD.

         (c)  Anything in this  Section or  elsewhere  in this  Agreement to the
contrary  notwithstanding,  the term  "CSD  Nonassumed  Obligations"  shall  not
include,  and the term "CSD Assumed  Obligations"  shall include,  any liability
arising out of the transfer or  assignment to LLC of, or the use or enjoyment of
the benefits by LLC under, any Contract,  Governmental  Authorization or Private
Authorization  the transfer or assignment of which  (according to Section 2.2(c)
of the CSD  Disclosure  Schedule)  requires  or may  require  the consent of any
Authority or other third party (collectively, the "Nonassignable Contracts"), if
ATS  has,  on or  prior  to  the  Closing  Date,  notified  CSD in  writing  (an
"Acceptance  Notice")  that ATS consents to the transfer or  assignment  of such
Nonassignable  Contract to LLC despite the failure or inability of CSD to obtain
the  approval  or consent of an  Authority  or other  Person  whose  approval or
consent is required pursuant to the terms of such Nonassignable Contract, or ATS
elects to have LLC receive the benefits of such

                                       -2-


<PAGE>



Nonassumable  Contract, in either of which events, if the approval or consent of
an  Authority  or other  Person  applicable  to transfer  of such  Nonassignable
Contract  is required to be  obtained  as a  condition  to ATS'  obligations  at
Closing  pursuant to the  provisions of Section  6.1(a),  6.2(d) or 6.2(h),  ATS
shall be deemed to have waived such condition with respect to such Nonassignable
Contract.  With respect to any  Nonassignable  Contract for which the applicable
consent  of  any  Authority  or  other  Person  is  not  obtained  prior  to the
Termination Date and for which ATS does not timely deliver an Acceptance  Notice
as  described in the  preceding  sentence,  CSD and ATS shall  negotiate in good
faith to reach an  equitable  sharing of the rights and  obligations  under such
Nonassignable Contracts.

         (d)  Notwithstanding  anything  contained  in  this  Agreement  to  the
contrary,  except as set forth in Section 2.2(d) of the CSD Disclosure Schedule,
all items of income and expense  (including  without  limitation with respect to
rent,  utility  charges,  Pro Ratable Taxes and wages,  salaries and accrued but
unused vacation of CSD employees) arising from the ownership or operation of the
CSD Assets or the conduct of the CSD Central  Valley  Business shall be prorated
as of 12:01 a.m.,  Eastern time,  on the Closing Date,  with CSD entitled to and
responsible  for any such items on or prior to the Closing Date and ATS entitled
to and  responsible  for any such items relating to any subsequent  period.  For
these  purposes,  Pro Ratable Taxes  attributable to a period that begins before
and ends after the  Closing  Date  shall be treated on a "closing  of the books"
basis as two partial  periods,  one ending at the close of the Closing  Date and
the other  beginning on the day after the Closing Date,  except that Pro Ratable
Taxes (such as property Taxes) imposed on a periodic basis shall be allocated on
a daily basis. If either party shall have received any such revenues or paid any
such expenses or charges which, pursuant to the terms hereof, the other party is
entitled to or responsible for, it shall furnish the other party with a detailed
statement  of any such  items as soon as  practicable  after  receipt or payment
thereof.  The parties  shall use their best efforts to agree upon such items and
other  adjustments  prior to the Closing  Date and, in any event,  except as set
forth in Section 2.2(c) of the CSD Disclosure  Schedule,  within sixty (60) days
thereafter.  If the  parties  are unable  within  such period to agree upon such
items and other  adjustments,  CSD and ATS shall,  within the following ten (10)
days, jointly designate a nationally known independent public accounting firm to
be  retained  to review  such  items and other  adjustments.  The fees and other
expenses of retaining such  independent  public  accounting  firm shall be borne
equally by CSD and ATS. Such firm shall report its  conclusions as to such items
and  other  adjustments  pursuant  to this  Section  and  such  report  shall be
conclusive  on all  parties  to this  Agreement  and not  subject  to dispute or
review.  Upon such agreement or  determination  by such  independent  accounting
firm, CSD or ATS, as the case may be, shall  promptly  reimburse the other party
for any income  received or expenses paid by the other party and not  previously
reimbursed or any other adjustment required by this Section.

         Nothing contained in this Section 2.2(c) is intended or shall be deemed
to amend or modify the indemnification provisions of Article 8 nor to reallocate
responsibility for the matters set forth therein.

         2.3  Closing;  Purchase  Price.  The closing of the  Transactions  (the
"Closing") shall take place at Sullivan & Worcester LLP, One Post Office Square,
Boston,  Massachusetts 02109, at 10:00 a.m., local time, on May 29, 1997 or such
other  date,  prior to the  Termination  Date,  as the  parties  may agree  (the
"Closing Date"). At the Closing,  each of the parties and LLC shall deliver such
bills of sale,  assignments,  assumptions  of  liabilities,  opinions  and other
instruments  and  documents  as are  described  in this  Agreement  or as may be
otherwise  reasonably requested by the parties and their respective counsel. The
purchase  price for the  interest in the CSD Assets  being  acquired by ATS (the
"Purchase  Price") shall be an amount equal to the sum of (a) $790,000,  subject
to adjustment as provided in Section 2.2(d), plus an amount equal to the Prepaid
Expenses  and  minus  an  amount  equal  to the sum of (i)  the  CSD  Nonassumed
Obligations,  if any, which ATS agrees to assume, and (ii) Prepaid Revenues (the
"Base  Purchase  Price"),  and (b) the Entitled Site Payment.  The Base Purchase
Price shall be payable by (a) ATS  instructing  the Escrow  Agent to deliver the
Escrow Deposit (together with interest and other increments thereto) to CSD, and
(b) wire transfer of immediately  available  funds to CSD for the balance of the
Base Purchase Price to such account (or accounts) as CSD shall

                                       -3-


<PAGE>



designate  in  written  instructions  to ATS  delivered  not later  than two (2)
business days prior to the Closing. The CSD LLC Interest shall be deliverable by
the execution  and delivery of the LLC  Agreement at the Closing.  ATS agrees to
pay any and all costs incurred by CSD with respect to procuring any construction
permits for each of the Entitled Sites, including,  but not limited to, fees and
costs for surveys,  geotechnical reports, construction drawings and permit fees.
Such costs are  exclusive of and/or in addition to the Entitled  Site Payment of
$5,000.  The "Entitled  Site  Payment"  shall mean an amount equal to $5,000 for
each of the Entitled  Sites and shall be payable,  from time to time,  by ATS or
LLC  within ten (10)  business  days of the  receipt  by LLC of notice  from all
applicable  Authorities  that  all  Governmental   Authorizations  necessary  to
construct a  communication  tower on the Entitled Site as to which payment is to
be made have been fully approved.


                                    ARTICLE 3

                      REPRESENTATIONS AND WARRANTIES OF CSD

         CSD hereby represents,  warrants and covenants to, and agrees with, ATS
as follows:

         3.1  Organization  and  Business;   Power  and  Authority;   Effect  of
Transaction.

         (a) CSD is a corporation  duly organized,  validly existing and in good
standing under the laws of its jurisdiction of  organization,  has all requisite
power  and  authority  (corporate  and  other)  to own or hold  under  lease its
properties and to conduct its business as now conducted.

         (b) CSD has all requisite  corporate power and corporate  authority and
has in full  force  and  effect  all  Governmental  Authorizations  and  Private
Authorizations,  except  for  those  set  forth  in  Section  3.1(b)  of the CSD
Disclosure  Schedule or those the failure of which to obtain do not and will not
have,  individually  or in the  aggregate,  any material  adverse effect on CSD,
necessary  to enable it to execute and deliver,  and to perform its  obligations
under,  this Agreement and each Collateral  Document  executed or required to be
executed by it pursuant hereto or thereto or to consummate the Transactions; and
the execution,  delivery and  performance of this Agreement and each  Collateral
Document  executed or  required to be executed by it pursuant  hereto or thereto
have been duly authorized by all requisite corporate or other action on the part
of  CSD.  This  Agreement  has  been  duly  executed  and  delivered  by CSD and
constitutes, and each Collateral Document executed or required to be executed by
it pursuant  hereto or thereto or to consummate the  Transactions  when executed
and delivered by CSD will constitute,  legal,  valid and binding  obligations of
CSD,  enforceable  in accordance  with their  respective  terms,  except as such
enforceability may be limited by bankruptcy,  moratorium, insolvency and similar
laws  affecting the rights and remedies of creditors and  obligations of debtors
generally and by general principles of equity.

         (c)  Except  as set  forth  in  Section  3.1(c)  of the CSD  Disclosure
Schedule,  and except for matters which would have no material adverse effect on
CSD,  neither  the  execution  and  delivery  by CSD of  this  Agreement  or any
Collateral Document executed or required to be executed by it pursuant hereto or
thereto,  nor the consummation by CSD of the  Transactions,  nor compliance with
the terms, conditions and provisions hereof or thereof by CSD:

                  (i) will conflict with, or result in a breach or violation of,
         or  constitute  a default  under,  any  Organic  Document of CSD or any
         Applicable  Law,  or will  conflict  with,  or  result  in a breach  or
         violation of, or constitute a default under, or permit the acceleration
         of any obligation or liability in, or but for any requirement of giving
         of notice or passage of time or both would constitute such a

                                       -4-


<PAGE>



         conflict with,  breach or violation of, or default under, or permit any
         such  acceleration  in, any  Contractual  Obligation of CSD, other than
         those constituting CSD Nonassumed Obligations; or

                  (ii)  will  require  CSD to make or  obtain  any  Governmental
         Authorization,  Governmental Filing or Private Authorization  including
         without limitation under the FCA.

         (d)      CSD does not have any Subsidiaries.

         3.2 Materiality.  The  representations and warranties set forth in this
Article would in the aggregate be true and correct even without the  materiality
exceptions  or  qualifications  contained  therein  or  set  forth  in  the  CSD
Disclosure  Schedule,  except for such exceptions and  qualifications  including
without limitation those set forth in the CSD Disclosure  Schedule which, in the
aggregate for all such  representations  and  warranties,  are not and could not
reasonably be expected to be materially adverse to CSD.

         3.3      Title to Properties; Leases.

         (a)      CSD does not own any real property.

         (b)  Section  3.3(b) of the CSD  Disclosure  Schedule  contains a true,
accurate and complete  description  of all Leases under which any real  property
used in the CSD Central Valley Business is leased. Except as otherwise set forth
in Schedule 3.3(b) of the CSD Disclosure Schedule, each Lease or other occupancy
or other agreement under which CSD holds real or personal property  constituting
a part of the CSD Assets has been duly authorized, executed and delivered by CSD
and, to CSD's  knowledge,  each of the other  parties  thereto,  and is a legal,
valid and binding obligation of CSD, and, to CSD's knowledge,  each of the other
parties  thereto,  enforceable  in  accordance  with its  terms,  except as such
enforceability may be limited by bankruptcy,  moratorium, insolvency and similar
laws  affecting the rights and remedies of creditors and  obligations of debtors
generally  and by  general  principles  of  equity.  CSD has a  valid  leasehold
interest in and enjoys  peaceful  and  undisturbed  possession  under all Leases
pursuant to which it holds any such real property or tangible personal property.
All of such  Leases  are  valid and  subsisting  and in full  force and  effect;
neither CSD nor, to CSD's  knowledge,  any other party  thereto,  is in material
default  in the  performance,  observance  or  fulfillment  of  any  obligation,
covenant or condition  contained in any such Lease.  None of the fixed assets or
equipment  comprising  a part of the CSD Assets is subject to contracts of sale,
and none is held by CSD as lessee or as conditional sales vendee under any Lease
or  conditional  sales  contract  and none is  subject  to any  title  retention
agreement, except as set forth in Section 3.3(b) of the CSD Disclosure Schedule.

         3.4  Compliance  with  Private  Authorizations.  Section 3.4 of the CSD
Disclosure   Schedule  sets  forth  a  true,  accurate  and  complete  list  and
description of each Private  Authorization which individually is material to the
CSD Assets or the CSD Central  Valley  Business.  CSD has  obtained  all Private
Authorizations  which are  necessary  for the  ownership or operation of the CSD
Assets or the conduct of the CSD Central Valley  Business which, if not obtained
and maintained,  could,  individually or in the aggregate,  materially adversely
affect CSD. All of such Private  Authorizations  are valid and in good  standing
and are in full force and effect.  CSD is not in breach or  violation  of, or in
default in the  performance,  observance  or  fulfillment  of, any such  Private
Authorization,  and no Event exists or has occurred,  which constitutes,  or but
for any  requirement  of  giving  of notice  or  passage  of time or both  would
constitute,  such a  breach,  violation  or  default,  under  any  such  Private
Authorization,  except for such  defaults,  breaches or violations as do not and
will not have in the  aggregate  any  material  adverse  effect on CSD.  No such
Private  Authorization  is the subject of any  pending  or, to CSD's  knowledge,
threatened attack, revocation or termination.


                                       -5-


<PAGE>



       3.5 Compliance with Governmental Authorizations and Applicable Law.

         (a)  Section  3.5(a) of the CSD  Disclosure  Schedule  contains a true,
complete and accurate  description of each Governmental  Authorization  required
under Applicable Laws (i) to own and operate the CSD Central Valley Business, as
currently conducted or proposed to be conducted on or prior to the Closing Date,
all of which are in full  force and effect or (ii) that is  necessary  to permit
CSD to  execute  and  deliver  this  Agreement  and to perform  its  obligations
hereunder. CSD has obtained all Governmental  Authorizations which are necessary
for the  ownership  or  operation  of the CSD  Assets or the  conduct of the CSD
Central  Valley  Business  as now  conducted  and  which,  if not  obtained  and
maintained,  would,  individually or in the aggregate, have any material adverse
effect on CSD. None of the Governmental  Authorizations listed in Section 3.5(a)
of the CSD Disclosure  Schedule is subject to any restriction or condition which
would limit in any  material  respect the  ownership  or  operations  of the CSD
Assets or the conduct of the CSD Central Valley Business as currently conducted,
except for  restrictions  and conditions  generally  applicable to  Governmental
Authorizations of such type. The Governmental  Authorizations  listed in Section
3.5(a) of the CSD  Disclosure  Schedule are valid and in good  standing,  are in
full force and effect and are not impaired in any material respect by any act or
omission  of CSD or its  officers,  directors,  employees  or  agents,  and  the
ownership  or  operation  of the CSD Assets or the  conduct  of the CSD  Central
Valley Business are in accordance in all material respects with the Governmental
Authorizations.  All material reports, forms and statements required to be filed
by CSD with all Authorities with respect to the CSD Central Valley Business have
been filed and are true, complete and accurate in all material respects. No such
Governmental Authorization is the subject of any pending or, to CSD's knowledge,
threatened  challenge or proceeding to revoke or terminate any such Governmental
Authorization.  CSD  has  no  reason  to  believe  that  any  such  Governmental
Authorization  would not be renewed in the name of CSD by the granting Authority
in the ordinary course.

         (b) Except as otherwise specifically described in Section 3.5(b) of the
CSD  Disclosure  Schedule,  neither CSD nor any director or officer  thereof (in
connection  with  ownership or operation of the CSD Assets or the conduct of the
CSD Central  Valley  Business) is in or is charged by any Authority  with or, to
CSD's  knowledge,  at any time  since  January  1,  1993 has been in or has been
charged by any Authority  with, or, to CSD's  knowledge,  is threatened or under
investigation  by any  Authority  with respect to,  breach or  violation  of, or
default in the  performance,  observance  or  fulfillment  of, any  Governmental
Authorization  or any  Applicable Law relating to the ownership and operation of
the CSD Assets or the conduct of the CSD Central Valley Business. In particular,
but without limiting the generality of the foregoing, there are no applications,
complaints or Legal Actions pending or, to CSD's knowledge, threatened before or
by any Authority (x) relating to the ownership or operation of the CSD Assets or
the conduct of the CSD Central Valley  Business  which,  individually  or in the
aggregate,  are reasonably  likely to result in the revocation or termination of
any  Governmental  Authorization  or the imposition of any restriction of such a
nature as would adversely affect the ownership or operation of the CSD Assets or
the conduct of the CSD Central Valley Business; (y) involving charges of illegal
discrimination  by CSD  under  any  federal  or state  employment  Laws,  or (z)
involving  Environmental  Laws or zoning laws, except as otherwise  specifically
described in Section 3.5(b) of the CSD Disclosure Schedule.

         (c) Except as otherwise specifically described in Section 3.5(c) of the
CSD  Disclosure  Schedule,  no Event  exists or has  occurred,  which,  to CSD's
knowledge,  constitutes,  or but for any  requirement  of  giving  of  notice or
passage of time or both would constitute,  such a breach,  violation or default,
under (i) any Governmental  Authorization or any Applicable Law, except for such
breaches, violations or defaults as do not and will not have, individually or in
the  aggregate,  any  material  adverse  effect  on CSD  or  (ii)  any  material
requirement of any insurance carrier,  applicable to the ownership or operations
of the CSD Assets or the conduct of the CSD Central Valley Business.


                                       -6-


<PAGE>



         (d) With respect to matters, if any, of a nature referred to in Section
3.5(a),  3.5(b) or 3.5(c) of the CSD  Disclosure  Schedule,  except as otherwise
specifically  described in Section  3.5(d) of the CSD Disclosure  Schedule,  all
such  information  and  matters  set forth in the CSD  Disclosure  Schedule,  if
adversely  determined  against CSD, will not,  individually or in the aggregate,
have a materially adversely effect on CSD.

         3.6 Intangible  Assets.  CSD does not own or use any Intangible  Assets
(other than Governmental  Authorizations and Private Authorizations) relating to
the  ownership and operation of the CSD Assets or the conduct of the CSD Central
Valley  Business.  CSD does not, to its knowledge,  wrongfully  infringe upon or
unlawfully  use any Intangible  Assets owned or claimed by another,  and CSD has
not  received  any  notice of any  claim or  infringement  relating  to any such
Intangible Asset.

         3.7 Insurance.  CSD  maintains,  with respect to the CSD Assets and the
CSD  Central  Valley  Business,  policies  of fire  and  extended  coverage  and
casualty,  liability  and other forms of  insurance  in such amounts and against
such  risks and  losses as are set forth in  Section  3.7 of the CSD  Disclosure
Schedule.

         3.8 Absence of Sensitive Payments. Neither CSD nor, to CSD's knowledge,
any of its officers, directors, employees, agents or other representatives,  has
with respect to the CSD Assets or the CSD Central  Valley  Business (a) made any
contributions,  payments or gifts to or for the private use of any  governmental
official,  employee  or agent  where  either the  payment or the purpose of such
contribution,  payment or gift is illegal under the laws of the United States or
the  jurisdiction  in which made or (b) established or maintained any unrecorded
fund or asset for any  purpose  or made any false or  artificial  entries on its
books.

         3.9  Inapplicability  of  Specified  Statutes.  CSD is  not a  "holding
company", or a "subsidiary company" or an "affiliate" of a "holding company", as
such terms are defined in the Public  Utility  Holding  Company Act of 1935,  as
amended,  or an "investment  company" or a company  "controlled" by or acting on
behalf of an "investment  company",  as defined in the Investment Company Act of
1940, as amended, or a "carrier" or a person which is in control of a "carrier",
as defined in section 11301 of Title 49, U.S.C.

         3.10 Material Agreements.  Listed on Section 3.10 of the CSD Disclosure
Schedule are all Material  Agreements  relating to the ownership or operation of
the CSD Assets or the conduct of the business of the CSD Central Valley Business
or to which  CSD is a party  or to  which  it is  bound or which  any of the CSD
Assets is subject.  True,  accurate and complete copies of each of such Material
Agreements  have been made available by CSD to ATS and CSD has provided ATS with
photocopies of all such Material Agreements  requested by ATS (or true, accurate
and complete descriptions thereof have been set forth in Section 3.10 of the CSD
Disclosure  Schedule,  with  respect to Material  Agreements  comprised  of site
leases and site  licenses  granted by CSD to third  parties and with  respect to
Material  Agreements that are oral). All of such Material  Agreements are valid,
binding and legally enforceable obligations of CSD and, to CSD's knowledge,  all
other  parties  thereto,  except  as  such  enforceability  may  be  limited  by
bankruptcy,  moratorium,  insolvency  and similar laws  affecting the rights and
remedies  of  creditors  and  obligations  of debtors  generally  and by general
principles of equity.  CSD has duly complied with all of the material  terms and
conditions  of each such Material  Agreement  and has not done or performed,  or
failed to do or perform  (and there is no pending or, to the  knowledge  of CSD,
Claim threatened in writing that CSD has not so complied,  done and performed or
failed to do and perform) any act which would  invalidate or provide grounds for
the other party thereto to terminate (with or without notice, passage of time or
both) such Material Agreement or impair the rights or benefits,  or increase the
costs, of CSD under any of such Material Agreements in any material respect.

         3.11  Material  and  Adverse  Restrictions.  CSD is not a  party  to or
subject  to,  nor is any of the CSD  Assets  subject  to,  any  Applicable  Law,
Governmental  Authorization,  Contractual  Obligation,  Employment  Arrangement,
Material  Agreement  or  Private  Authorization,  or  any  other  obligation  or
restriction of any kind

                                       -7-


<PAGE>



or character, which now has or, as far as CSD can now reasonably foresee, at any
time in the future,  individually  or in the  aggregate,  is likely to have, any
material  adverse effect on CSD,  except as set forth in Section 3.11 of the CSD
Disclosure Schedule.

         3.12  Broker or Finder.  No Person  assisted  in or  brought  about the
negotiation  of this  Agreement or the  Transactions  in the capacity of broker,
agent or finder or in any similar capacity on behalf of CSD.

         3.13 Environmental Matters.  Except as set forth in Section 3.13 of the
CSD Disclosure Schedule, with respect to the CSD Assets and the CSD Assets, CSD:

                  (a) has not been notified that it is potentially liable under,
         has not received any request for  information  or other  correspondence
         concerning its potential liability with respect to any site or facility
         under,  and,  to CSD's  knowledge,  is not a  "potentially  responsible
         party" under, the Comprehensive  Environmental  Response,  Compensation
         and  Liability  Act of 1980,  as  amended,  the  Resource  Conservation
         Recovery Act, as amended, or any similar state law;

                  (b) has not  entered  into or  received  any  consent  decree,
         compliance  order  or  administrative  order  issued  pursuant  to  any
         Environmental Law;

                  (c) is  not a  party  in  interest  or in  default  under  any
         judgment,  order,  writ,  injunction or decree  issued  pursuant to any
         Environmental Law;

                  (d)  is in  compliance  in  all  material  respects  with  all
         Environmental  Laws, has obtained all  Environmental  Permits  required
         under  Environmental  Laws,  and is not the  subject  of or,  to  CSD's
         knowledge,  threatened  with any Legal  Action  involving  a demand for
         damages or other potential liability including any Lien with respect to
         material violations or material breaches of any Environmental Law; and

                  (e) has no knowledge of any past or present  Event  related to
         the  CSD  Central  Valley  Business  or the  CSD  Assets  which  Event,
         individually  or in the  aggregate,  will  interfere  with  or  prevent
         continued  material  compliance with all Environmental  Laws, or which,
         individually  or in the aggregate,  will form the basis of any material
         Claim for the release or threatened  release into the  environment,  of
         any Hazardous Material.


                                    ARTICLE 4

                      REPRESENTATIONS AND WARRANTIES OF ATS

         ATS  represents,  warrants and  covenants  to, and agrees with,  CSD as
follows:

         4.1  Organization  and  Business;   Power  and  Authority;   Effect  of
Transaction.

         (a) ATS is a corporation  duly organized,  validly existing and in good
standing  under  the  laws  of its  jurisdiction  of  incorporation  and has all
requisite  power and authority  (corporate and other) to own or hold under lease
its properties and to conduct its business as now conducted.

         (b) ATS has all  requisite  corporate  power  and  corporate  authority
necessary  to enable it to execute and deliver,  and to perform its  obligations
under,  this Agreement and each Collateral  Document  executed or required to be
executed by it pursuant hereto or thereto or to consummate the Transactions; and

                                       -8-


<PAGE>



the execution,  delivery and  performance of this Agreement and each  Collateral
Document  executed or  required to be executed by it pursuant  hereto or thereto
have been duly authorized by all requisite corporate or other action on the part
of  ATS.  This  Agreement  has  been  duly  executed  and  delivered  by ATS and
constitutes, and each Collateral Document executed or required to be executed by
it pursuant  hereto or thereto or to consummate the  Transactions  when executed
and delivered by ATS will constitute,  legal,  valid and binding  obligations of
ATS,  enforceable  in accordance  with their  respective  terms,  except as such
enforceability may be limited by bankruptcy,  moratorium, insolvency and similar
laws  affecting  the rights and remedies of  creditors  and the  obligations  of
debtors generally and by general principles of equity.

         (c) Except for matters which would have not material  adverse effect on
ATS,  neither  the  execution  and  delivery  by ATS of  this  Agreement  or any
Collateral Document executed or required to be executed by it pursuant hereto or
thereto,  nor the consummation by ATS of the  Transactions,  nor compliance with
the terms, conditions and provisions hereof or thereof by ATS:

                  (i) will conflict with, or result in a breach or violation of,
         or  constitute  a default  under,  any  Organic  Document of ATS or any
         Applicable  Law on the part of ATS, or will conflict with, or result in
         a breach or violation of, or constitute a default under,  or permit the
         acceleration  of  any  obligation  or  liability  in,  or but  for  any
         requirement  of  giving  of notice  or  passage  of time or both  would
         constitute  such a conflict  with,  breach or violation  of, or default
         under, or permit any such  acceleration in, any Contractual  Obligation
         of ATS; or

                  (ii)  will  require  ATS to make or  obtain  any  Governmental
         Authorization,  Governmental Filing or Private Authorization  including
         without limitation under the FCA.

         4.2  Broker or  Finder.  No Person  assisted  in or  brought  about the
negotiation  of this  Agreement or the  Transactions  in the capacity of broker,
agent or finder or in any similar capacity on behalf of ATS.

         4.3 Solvency.  As of the execution and delivery of this Agreement,  ATS
is, and immediately  prior to and after giving effect to the consummation of the
Transactions will be, solvent.

         4.4 No Legal  Action.  There are no Legal  Actions  pending  or, to the
knowledge  of ATS,  threatened  against ATS or any of its  Affiliated  Entities,
officers  or  directors,  that  question  or may  affect  the  validity  of this
Agreement  or the  right  of ATS to  consummate  the  transactions  contemplated
hereunder.


                                    ARTICLE 5

                                    COVENANTS

         5.1      Access to Information; Confidentiality.

         (a) CSD shall  afford  to ATS and its  accountants,  counsel,  lenders,
financial advisors and other representatives (the "Representatives") full access
during normal business hours  throughout the period prior to the Closing Date to
all of CSD's properties,  books,  contracts,  commitments and records (including
without  limitation Tax returns)  relating to the CSD Assets and the CSD Central
Valley Business and, during such period, shall furnish promptly upon request (i)
a copy of each report,  schedule and other  document filed or received by any of
them pursuant to the  requirements of any Applicable Law or filed by it with any
Authority  in  connection  with the  Transactions  or which may have an  adverse
effect on the CSD Assets or the CSD Central Valley  Business or the  businesses,
operations, properties, prospects, personnel, condition (financial or other), or
results of operations thereof, (ii) all financial records,  ledgers, work papers
and other sources of

                                       -9-


<PAGE>



financial  information possessed and controlled by CSD or its accountants deemed
by ATS or its Representatives  necessary or useful for the purpose of performing
an audit of the CSD Assets and the CSD Central  Valley  Business and  certifying
financial statements and financial information, and (iii) such other information
in the  possession or control of CSD or its  accountants  concerning  any of the
foregoing as ATS shall reasonably request; provided, however, that CSD shall not
be  required  to permit any such  access to the extent  same would  unreasonably
interfere with CSD's normal  business  operations.  All  non-public  information
relating to the CSD Assets or the CSD Central Valley Business furnished prior to
the  execution,  or pursuant to the  provisions,  of this  Agreement,  including
without  limitation  this  Section,  will be kept  confidential  and shall  not,
without  the prior  written  consent of CSD, be  disclosed  by ATS in any manner
whatsoever,  in whole or in part, and shall not be used for any purposes,  other
than in connection  with the  Transactions.  In no event shall ATS or any of its
Representatives  use such  information  to the  detriment  of CSD. ATS agrees to
reveal such  information only to those of its  Representatives  or other Persons
who  need  to  know  such   information   for  the  purpose  of  evaluating  the
Transactions,  who are informed of the  confidential  nature of such information
and who shall  undertake to act in accordance  with the terms and  conditions of
this  Agreement.  From and after the Closing,  CSD shall not,  without the prior
written consent of ATS,  disclose any information with respect to the CSD Assets
or the CSD Central Valley Business,  and no such  information  shall be used for
any purposes,  other than in connection  with the  Transactions or to the extent
required by Applicable Law.

         (b) Subject to the terms and  conditions  of Section  5.1(a),  ATS may,
subject to prior  consultation  with CSD,  disclose such  information  as may be
necessary in connection with seeking all Governmental and Private Authorizations
or that is required by Applicable  Law to be  disclosed.  In the event that this
Agreement  is  terminated  for any  reason,  ATS shall  promptly  redeliver  all
non-public  written  material  provided  pursuant  to this  Section or any other
provision of this Agreement or otherwise in connection with the Transactions and
shall not retain any copies, extracts or other reproductions in whole or in part
of such written  material,  other than one copy thereof which shall be delivered
to independent counsel for ATS.

         (c)  Anything in this  Section or  elsewhere  in this  Agreement to the
contrary  notwithstanding,  either  party may disclose  information  received or
retained by it in accordance  with the  provisions  of this  Agreement if it can
demonstrate  (i) such  information  is  generally  available  to or known by the
public from a source other than the party seeking to disclose  such  information
or (ii) was obtained by the party  seeking to disclose such  information  from a
source other than the other party,  provided that such source was not bound by a
duty of confidentiality to the other party or another party with respect to such
information.

         (d) No investigation pursuant to this Section or otherwise shall affect
any  representation  or  warranty  in this  Agreement  of  either  party  or any
condition  to the  obligations  of the  parties  hereto,  except as set forth in
Section 8.3(e).

         5.2 Agreement to Cooperate.

         (a) Each of the parties  hereto shall use reasonable  business  efforts
(x) to take,  or cause to be taken,  all actions and to do, or cause to be done,
all things necessary, proper or advisable under Applicable Law to consummate the
Transactions,  and (y) to refrain from taking,  or cause to be taken, any action
and to refrain from doing or causing to be done, any thing which could impede or
impair the consummation of the Transactions,  including,  in all cases,  without
limitation  using its reasonable  business  efforts (i) to prepare and file with
the applicable  Authorities  as promptly as  practicable  after the execution of
this Agreement all requisite applications and amendments thereto,  together with
related information,  data and exhibits, necessary to request issuance of orders
approving the  Transactions  by all such applicable  Authorities,  each of which
must be obtained or become final to the extent provided in Section 6.1(a),  (ii)
to  obtain  all  necessary  or  appropriate  waivers,  consents  and  approvals,
including without limitation those referred to in Section 6.2(d),

                                      -10-


<PAGE>



(iii) to effect all necessary registrations,  filings and submissions (including
without  limitation  all  filings  necessary  for ATS to own and operate the CSD
Assets and conduct the CSD Central Valley Business), (iv) to lift any injunction
or other legal bar to the  Transactions  (and, in such case, to proceed with the
Transactions as expeditiously  as possible),  and (v) to obtain the satisfaction
of the conditions specified in Article 6, including without limitation the truth
and  correctness as of the Closing Date as if made on and as of the Closing Date
of the  representations  and  warranties of such party and the  performance  and
satisfaction  as of the Closing  Date of all  agreements  and  conditions  to be
performed or satisfied by such party.

         (b) The parties shall  cooperate  with one another in the  preparation,
execution and filing of all Tax returns, questionnaires,  applications, or other
documents  regarding any real property transfer or gains,  sales, use, transfer,
value  added,   stock  transfer  and  stamp  Taxes,  any  transfer,   recording,
registration  and other fees,  and any similar  Taxes  which  become  payable in
connection with the  Transactions  that are required or permitted to be filed on
or before the Closing Date.

         5.3  Public  Announcements.  Until  the  Closing,  or in the  event  of
termination of this  Agreement,  CSD and ATS shall consult with the other before
issuing any press release or otherwise making any public statements with respect
to this Agreement or the Transactions and shall not issue any such press release
or make any such  public  statement  without  the prior  consent  of the  other.
Notwithstanding  the foregoing,  each party acknowledges and agrees that CSD and
ATS may,  without  its prior  consent,  issue such press  releases  or make such
public  statements as may be required by  Applicable  Law, in which case, to the
extent  practicable,  the party  proposing to make such press  release or public
statement will consult with the other  regarding the nature,  extent and form of
such press release or public  statement.  In addition,  subject to the terms and
conditions  hereof,  ATS may  disclose the subject  matter of this  Agreement to
Persons with whom CSD has a business or contractual  relationship  in connection
with ATS' due diligence investigation of CSD.

         5.4  Notification  of Certain  Matters.  Each party  shall give  prompt
notice  to the  other,  of the  occurrence  or  non-occurrence  of any Event the
occurrence  or  non-occurrence  of  which  would  be  likely  to  cause  (i) any
representation  or warranty made by it contained in this  Agreement to be untrue
or inaccurate in any respect such that one or more of the  conditions of Closing
might not be satisfied, or (ii) any covenant,  condition or agreement made by it
contained in this  Agreement not to be complied with or satisfied,  or (iii) any
change to be made in the CSD Disclosure Schedule in any respect such that one or
more of the  conditions of Closing might not be satisfied,  and any failure made
by it to comply  with or  satisfy,  or be able to comply  with or  satisfy,  any
covenant,  condition  or  agreement  to be  complied  with  or  satisfied  by it
hereunder  in any  respect  such that one or more of the  conditions  of Closing
might not be  satisfied;  provided,  however,  that the  delivery  of any notice
pursuant  to this  Section  shall not limit or  otherwise  affect  the  remedies
available hereunder to the party receiving such notice.

         5.5 No  Solicitation.  CSD shall not, nor shall it knowingly permit any
of its Representatives  (including,  without limitation,  any investment banker,
broker, finder, attorney or accountant retained by it) to, initiate,  solicit or
facilitate,  directly or indirectly, any inquiries or the making of any proposal
with  respect  to any  Alternative  Transaction,  engage in any  discussions  or
negotiations concerning,  or provide to any other Person any information or data
relating to, it or any Subsidiary for the purposes of, or otherwise cooperate in
any way with or assist or  participate  in, or  facilitate  any inquiries or the
making of any proposal which constitutes,  or may reasonably be expected to lead
to, a proposal  to seek or effect any  Alternative  Transaction,  or agree to or
endorse  any  Alternative   Transaction.   "Alternative   Transaction"  means  a
transaction  or series of related  transactions  (other  than the  Transactions)
resulting in (i) any merger or  consolidation,  regardless of whether CSD is the
surviving  Entity  unless the  surviving  Entity  remains  obligated  under this
Agreement to the same extent as it was, or (ii) any sale or other disposition of
all or any  substantial  part  of the  CSD  Assets  or the  CSD  Central  Valley
Business.  The  provisions  of  this  Section  shall  apply  to  each  of  CSD's
Subsidiaries.  If CSD or any of its  Representatives  receives  any inquiry with
respect to an Alternative

                                      -11-


<PAGE>



Transaction  while this  Agreement is in effect,  CSD shall inform the inquiring
party that it is not entitled to enter into discussions or negotiations relating
to an Alternative Transaction.

         5.6 Conduct of Business by CSD Pending the Closing. Except as otherwise
contemplated by this  Agreement,  after the date hereof and prior to the Closing
Date,  unless ATS shall  otherwise  agree in writing,  CSD shall,  to the extent
relating to the CSD Central Valley Business or the CSD Assets:

                  (a) conduct its  business in the  ordinary and usual course of
         business  and  consistent   with  past  practice,   including   without
         limitation the performance of such maintenance, repairs or replacements
         with respect to communication  towers,  fixtures and Personal  Property
         comprising the CSD Assets as is consistent with past practice;

                  (b) use all reasonable business efforts to preserve intact its
         business organizations and goodwill, keep available the services of its
         present  key   employees,   and  preserve  the  goodwill  and  business
         relationships  with customers and others having business  relationships
         with it;

                  (c) confer, as and when reasonably requested, on a regular and
         frequent  basis  with  one or  more  representatives  of ATS to  report
         material   operational  matters  and  the  general  status  of  ongoing
         operations;

                  (d) maintain with financially  responsible insurance companies
         insurance  on its assets and its  business in such  amounts and against
         such risks and losses as are consistent with past practice;

                  (e) use  reasonable  business  efforts to (i)  operate the CSD
         Central Valley Business in conformity in all material respects with all
         Governmental and Private Authorizations, Leases and Material Agreements
         on a basis  consistent  with past practice and  Applicable  Law and the
         rules and regulations of any Authority with  jurisdiction  over the CSD
         Assets or the CSD Central  Valley  Business,  and (ii) maintain in full
         force and  effect all such  Governmental  and  Private  Authorizations,
         Leases and  Material  Agreements  relating  to the CSD  Central  Valley
         Business; and

                  (f) not (i)  dispose of any of the CSD Assets  owned by CSD or
         used in the operation of the CSD Central Valley Business or (ii) modify
         or change in any material respect, or enter into, any Lease or Material
         Agreement relating to any of the CSD Assets.

With respect to any  transaction or act proposed to be entered into or performed
by CSD which,  pursuant to  Sections  5.1(a)  through  (f),  requires  the prior
approval of ATS, ATS shall be deemed to have approved same unless written notice
of disapproval is received by CSD within five (5) business days after receipt by
ATS of a written request for approval made by CSD.


                                    ARTICLE 6

                               CLOSING CONDITIONS

         6.1 Conditions to Obligations of Each Party. The respective obligations
of each party to effect the Transactions shall,  except as hereinafter  provided
in this Section,  be subject to the satisfaction at or prior to the Closing Date
of the following  conditions,  any or all of which may be waived, in whole or in
part, to the extent permitted by Applicable Law:


                                      -12-


<PAGE>



                  (a) As of the Closing  Date,  no Legal Action shall be pending
         before or  threatened  in writing by any  Authority  seeking to enjoin,
         restrain,  prohibit or make illegal or to impose any materially adverse
         conditions in connection with, the consummation of the Transactions, it
         being understood and agreed that a written request by any Authority for
         information with respect to the  Transactions,  which information could
         be used in connection  with such Legal  Action,  shall not in itself be
         deemed to be a threat of any such Legal Action;

                  (b) All authorizations, consents, waivers, orders or approvals
         required  to  be  obtained  from  all  Authorities,  and  all  filings,
         submissions, registrations, notices or declarations required to be made
         by ATS and CSD with any  Authority,  prior to the  consummation  of the
         Transactions,  shall have been obtained  from,  and made with, all such
         Authorities, except for such authorizations, consents, waivers, orders,
         approvals, filings,  registrations,  notices or declarations as are set
         forth in Section 6.1(b) of the CSD  Disclosure  Schedule or the failure
         to obtain or make would not,  in the  reasonable  business  judgment of
         ATS,  have a  material  adverse  effect  on the CSD  Assets  or the CSD
         Central Valley Business; and

                  (c) LLC shall have  executed and delivered  this  Agreement as
         set forth below.

         6.2  Conditions to  Obligations of ATS. The obligation of ATS to effect
the  Transactions  shall  be  subject  to  the  satisfaction  of  the  following
conditions,  any or all of which  may be  waived,  in  whole or in part,  to the
extent permitted by Applicable Law:

                  (a) All agreements, certificates, opinions and other documents
         required to be delivered  pursuant to the  provisions of this Agreement
         shall be reasonably  satisfactory  in form,  scope and substance to ATS
         and its  counsel,  and ATS and its  counsel  shall  have  received  all
         information and copies of all documents, including records of corporate
         proceedings, which they may reasonably request in connection therewith,
         such documents where appropriate to be certified by proper  Authorities
         or corporate officers;

                  (b) CSD shall have  furnished  ATS and, at ATS'  request,  any
         bank or other  financial  institution  providing  credit to ATS, with a
         favorable opinion, dated the Closing Date of Taylor, Scott, Nichols and
         Matteucci,  counsel for CSD,  with  respect to the matters set forth in
         Sections  3.1(a),  (b) and (c),  3.5(b) and 3.9, and such other matters
         arising  after  the  date  of  this   Agreement  and  incident  to  the
         Transactions,  as ATS or its  counsel  or its  counsel  may  reasonably
         request  or which  may be  reasonably  requested  by any  such  bank or
         financial institution or their respective counsel;

                  (c) The  representations  and  warranties  of CSD contained in
         this  Agreement  or  otherwise  made in  writing by it or on its behalf
         pursuant hereto or otherwise made in connection  with the  Transactions
         shall be true and  correct in all  material  respects  at and as of the
         Closing Date with the same force and effect as though made on and as of
         such date except  those  which  speak as of a certain  date which shall
         continue  to be true and  correct in all  material  respects as of such
         date on the Closing Date (including without limitation giving effect to
         any  later  obtained  knowledge  of CSD or  ATS,  except  as  otherwise
         specifically  provided  herein);  each  and all of the  agreements  and
         conditions to be performed or satisfied by CSD hereunder at or prior to
         the Closing  Date shall have been duly  performed  or  satisfied in all
         material  respects;   and  CSD  shall  have  furnished  ATS  with  such
         certificates   and  other  documents   evidencing  the  truth  of  such
         representations,   warranties,   covenants  and   agreements   and  the
         performance  of such  agreements  or  conditions  as ATS or its counsel
         shall have reasonably requested;


                                      -13-


<PAGE>



                  (d) Except to the extent,  if any,  specifically  set forth in
         Section  6.2(d) of the CSD  Disclosure  Schedule,  all  authorizations,
         consents,  waivers,  orders or approvals  required by the provisions of
         this Agreement to be obtained from all Persons (other than Authorities)
         prior  to the  consummation  of  the  Transactions,  including  without
         limitation  those required by the provisions of this Agreement in order
         to vest fully in ATS all right, title and interest in and to all of the
         CSD Assets  and the CSD  Central  Valley  Business  (including  without
         limitation all Private  Authorizations,  Leases and Material Agreements
         of CSD)  and the full  enjoyment  thereof  shall  have  been  obtained,
         without  the  imposition,  individually  or in  the  aggregate,  of any
         condition or requirement which could adversely affect ATS;

                  (e) CSD shall have  delivered  or cause to be delivered to ATS
         all of the Collateral  Documents  (including without limitation the LLC
         Agreement) and other agreements,  documents and instruments required to
         be delivered  by CSD to ATS at or prior to the Closing  pursuant to the
         terms of this Agreement;

                  (f) As of the Closing  Date,  except as otherwise set forth in
         Section 3.7(a) of the CSD Disclosure Schedule, no Legal Action shall be
         pending  before or threatened in writing by any Authority  which might,
         in the  reasonable  business  judgment of ATS, based upon the advice of
         counsel,  have a material  adverse effect on the CSD Assets and the CSD
         Central Valley Business,  it being understood and agreed that a written
         request  by  any  Authority  for   information   with  respect  to  the
         Transactions,  which  information could be used in connection with such
         Legal  Action,  shall not be  deemed  to be a threat of any such  Legal
         Action;

                  (g) Each of the individuals  named therein shall have executed
         and delivered to ATS an agreement  substantially in the form of Exhibit
         B  attached  hereto  and made a part  hereof  (the "ATS  Noncompetition
         Agreements");

                  (h) CSD shall have delivered to ATS all use permits,  consents
         or other Governmental  Authorizations of and all Leases from the United
         States Forest  Service,  if any, set forth in Section 6.2(h) of the CSD
         Disclosure Schedule; and

                  (i) CSD shall have executed and delivered to ATS an agreement,
         in  form,  scope  and  substance  reasonably  satisfactory  to ATS (the
         "Nonassignable  Contracts  Agreement"),  pursuant to which (i) CSD will
         hold (but will have no obligation to perform  services  thereunder) for
         the account of ATS,  and remit  promptly  to ATS all  amounts  received
         pursuant to the provisions of, all of the Nonassignable Contracts as to
         which the required approval or consent to the assignment or transfer of
         which was not obtained and as to which ATS has  delivered an Acceptance
         Notice, and (ii) ATS will agree to (A) perform all services required to
         be performed under such Nonassignable  Contracts, (B) reimburse CSD for
         all  costs  and   expenses   reasonably   incurred   pursuant   to  the
         Nonassignable  Contracts  Agreement and (C) indemnify and hold harmless
         CSD with respect to all actions  taken by ATS pursuant  thereto and all
         actions,  if any,  taken  by CSD  pursuant  thereto  other  than  those
         relating to the bad faith,  negligence or willful  misconduct of CSD or
         its officers, directors, stockholders or employees.

         6.3  Conditions to  Obligations of CSD. The obligation of CSD to effect
the  Transactions  shall  be  subject  to  the  satisfaction  of  the  following
conditions,  any or all of which  may be  waived,  in  whole or in part,  to the
extent permitted by Applicable Law:

                  (a) All agreements, certificates, opinions and other documents
         required to be delivered  pursuant to the  provisions of this Agreement
         shall be reasonably satisfactory in form, scope and

                                      -14-


<PAGE>



         substance  to CSD and its counsel,  and CSD and its counsel  shall have
         received all information and copies of all documents, including records
         of  corporate  proceedings,   which  they  may  reasonably  request  in
         connection therewith,  such documents where appropriate to be certified
         by proper Authorities or corporate officers;

                  (b) ATS shall have  furnished CSD and, at CSD's  request,  any
         bank of other  financial  institution  providing  credit  to CSD,  with
         favorable opinions, dated the Closing Date of Sullivan & Worcester LLP,
         counsel for ATS,  with  respect to the matters set forth in Section 4.1
         and with respect to such other  matters  arising after the date of this
         Agreement and incident to the  Transactions,  as CSD or its counsel may
         reasonably  request or which may be  reasonably  requested  by any such
         bank or financial institution or their respective counsel;

                  (c) The  representations  and  warranties  of ATS contained in
         this  Agreement  or  otherwise  made in  writing by it or on its behalf
         pursuant hereto or otherwise made in connection  with the  Transactions
         shall be true and  correct in all  material  respects  at and as of the
         Closing Date with the same force and effect as though made on and as of
         such date except  those  which  speak as of a certain  date which shall
         continue  to be true and  correct in all  material  respects as of such
         date on the Closing Date (including without limitation giving effect to
         any  later  obtained  knowledge  of CSD or  ATS,  except  as  otherwise
         specifically  provided  herein);  each  and all of the  agreements  and
         conditions to be performed or satisfied by ATS hereunder at or prior to
         the Closing  Date shall have been duly  performed  or  satisfied in all
         material  respects;   and  ATS  shall  have  furnished  CSD  with  such
         certificates   and  other  documents   evidencing  the  truth  of  such
         representations,   warranties,   covenants  and   agreements   and  the
         performance  of such  agreements  or  conditions  as CSD or its counsel
         shall have reasonably requested;

                  (d) ATS shall have  delivered  or cause to be delivered to CSD
         all of the Collateral  Documents  (including without limitation the LLC
         Agreement) and other agreements,  documents and instruments required to
         be delivered  by ATS to CSD at or prior to the Closing  pursuant to the
         terms of this Agreement; and

                  (e)  ATS  shall  have   executed  and  delivered  to  CSD  the
         Nonassignable Contracts Agreement.


                                    ARTICLE 7

                        TERMINATION, AMENDMENT AND WAIVER

         7.1 Termination.  This Agreement may be terminated at any time prior to
the Closing Date:

                  (a) by mutual consent of CSD and ATS;

                  (b) by either ATS or CSD if any permanent  injunction,  decree
         or  judgment  by  any  Authority  preventing  the  consummation  of the
         Transactions shall have become final and nonappealable; or

                  (c) by CSD in the event (i) CSD is not in  material  breach of
         this Agreement and none of its representations or warranties shall have
         become and  continue  to be untrue in any  material  respect,  and (ii)
         either  (A) the  Transactions  have not been  consummated  prior to the
         Termination Date, or (B) ATS is in material breach of this Agreement or
         any of its representations or warranties

                                      -15-


<PAGE>



         shall have become and  continue to be untrue in any  material  respect,
         and such a breach or untruth  exists and is not  capable of being cured
         by and will prevent or delay  consummation  of the  Transactions  by or
         beyond the Termination Date; or

                  (d) by ATS in the event (i) ATS is not in  material  breach of
         this Agreement and none of its representations or warranties shall have
         become and  continue  to be untrue in any  material  respect,  and (ii)
         either  (A) the  Transactions  have not been  consummated  prior to the
         Termination Date, or (B) CSD is in material breach of this Agreement or
         any of its representations or warranties shall have become and continue
         to be  untrue in any  material  respect,  and such a breach or  untruth
         exists and is not capable of being  cured by and will  prevent or delay
         consummation of the Transactions by or beyond the Termination Date.

         The term "Termination  Date" shall mean July 1, 1997 or such other date
as the parties may, from time to time, mutually agree.

         The right of ATS or CSD to terminate  this  Agreement  pursuant to this
Section shall remain  operative  and in full force and effect  regardless of any
investigation  made by or on behalf of either party, any Person  controlling any
such party or any of their respective  Representatives whether prior to or after
the execution of this Agreement.

         7.2 Effect of Termination.

         (a)   Except  as   provided   in   Sections   5.1  (with   respect   to
confidentiality),  5.3 and 9.3 and this Section, in the event of the termination
of this Agreement pursuant to Section 7.1, this Agreement shall forthwith become
void,  there shall be no liability on the part of either party,  or any of their
respective shareholders,  officers or directors, to the other and all rights and
obligations  of  either  party  shall  cease;   provided,   however,  that  such
termination   shall  not   relieve   either   party  from   liability   for  any
misrepresentation  or breach of any of its  warranties,  covenants or agreements
set forth in this Agreement.

         (b) In the event this  Agreement is  terminated  by CSD pursuant to the
provisions of Section 7.1(c),  then CSD shall be entitled to liquidated  damages
of an amount  equal to the Escrow  Deposit,  together  with  interest  and other
earnings thereon, it being agreed that such amount shall constitute full payment
for any and all damages  suffered by CSD by reason of ATS' failure to consummate
the  Transactions.  ATS and CSD agree in advance  that actual  damages  would be
difficult to ascertain and that such liquidated  damages is a fair and equitable
amount to reimburse CSD for damages  sustained due to ATS' failure to consummate
the Transactions for the  above-stated  reasons.  In the event this Agreement is
terminated by ATS pursuant to the provisions of Section  7.1(d),  then ATS shall
be entitled to the amount of the Escrow  Deposit,  together  with  interest  and
other  earnings  thereon,  without  prejudice to ATS' right to pursue damages or
other remedies hereunder.  Notwithstanding the foregoing,  each party shall have
the right to seek  specific  performance  pursuant to the  provisions of Section
9.5.

         (c)  In  the  event  this  Agreement  is  terminated  pursuant  to  the
provisions of Section  7.1(a),  7.1(b) or 7.1(e),  except as provided in Section
7.2(a), neither of the parties shall have any further rights or remedies, except
that ATS shall be entitled to the Escrow  Deposit,  together  with  interest and
earnings thereon.



                                      -16-


<PAGE>



                                    ARTICLE 8

                                 INDEMNIFICATION

         8.1  Survival.  The  representations  and  warranties  of  the  parties
contained in or made pursuant to this Agreement or any Collateral Document shall
survive the Closing and shall remain  operative and in full force and effect for
a period  of (a) two (2)  years  after the  Closing  Date or (b) the  applicable
statute  of  limitations  in the  case of  matters  of a nature  referred  to in
Sections 3.1, 3.13 and 4.1,  regardless of any  investigation or statement as to
the results thereof made by or on behalf of any party hereto.  The covenants and
agreements of the parties contained in or made pursuant to this Agreement or any
Collateral  Document shall survive the Closing and shall remain operative and in
full force and effect for the statute of  limitations  applicable to contractual
obligations.  The term "Indemnity  Period" shall mean the applicable period with
respect to which a representation,  warranty, covenant or agreement survives the
Closing as provided in this Section.  No claim for  indemnification,  other than
with respect to fraud or intentional  and willful  breach or  misrepresentation,
may be asserted  after the expiration of the Indemnity  Period.  Notwithstanding
anything  herein to the contrary,  any  representation,  warranty,  covenant and
agreement  which  arises and is the  subject  of a Claim  which is  asserted  in
writing prior to the expiration of the applicable Indemnity Period shall survive
with respect to such Claim or any dispute with respect  thereto  until the final
resolution thereof.

         8.2  Indemnification.  Each of CSD and ATS (the  "indemnifying  party")
agrees that on and after the Closing it shall  indemnify  and hold  harmless the
other (the  "indemnified  party") from and against any and all damages,  claims,
losses,  expenses,   costs,  obligations  and  liabilities,   including  without
limitation liabilities for all reasonable attorneys',  accountants' and experts'
fees  and  expenses  including  those  incurred  to  enforce  the  terms of this
Agreement or any Collateral  Document  executed by it  (collectively,  "Loss and
Expense"),  suffered, directly or indirectly, by the indemnified party by reason
of, or arising out of:

                  (a) any  breach  of  representation  or  warranty  made by the
         indemnifying  party  pursuant  to  this  Agreement  or  any  Collateral
         Document  executed  by it or any failure by the  indemnifying  party to
         perform or fulfill any of its  respective  covenants or agreements  set
         forth in this Agreement or any Collateral Document executed by it; or

                  (b) any  Legal  Action  or  other  Claim  by any  third  party
         relating  to the  indemnifying  party  or,  in the  case  of  ATS,  the
         ownership  or  operations  of the  CSD  Assets  or the  conduct  of the
         business  of the CSD Central  Valley  Business to the extent such Legal
         Action or other Claim has also  resulted in a breach of  representation
         or warranty by the indemnifying party pursuant to this Agreement or any
         Collateral Document executed by it; or

                  (c) in the case of CSD as the indemnifying  party, the failure
         of CSD to comply with Bulk Sales law of the State of California; or

                  (d) in the case of CSD as the  indemnifying  party,  by reason
         of, or  arising  out of,  (i) CSD  Nonassumed  Obligations  or (ii) the
         ownership  and  operation of the CSD Assets and the CSD Central  Valley
         Business prior to the Closing Date; or

                  (e) in the case of ATS as the  indemnifying  party,  by reason
         of,  or  arising  out  of,  (i) CSD  Assumed  Obligations  or (ii)  the
         ownership  and  operation of the CSD Assets and the CSD Central  Valley
         Business  from and after the Closing  Date,  except for Events  arising
         prior to or existing on the Closing  Date,  unless they are part of the
         CSD Assumed Obligations.


                                      -17-


<PAGE>



         8.3 Limitation of Liability.

         (a)  Notwithstanding  the provisions of Section 8.2, after the Closing,
except as otherwise provided in Section 8.6, each indemnified  party's rights to
indemnification  shall  be  subject  to  the  following  limitations:   (i)  the
indemnified  party  shall be entitled to recover its Loss and Expense in respect
of any Claim  only in the event  that the  aggregate  Loss and  Expense  for all
Claims exceeds, in the aggregate,  $25,000, in which event the indemnified party
shall be  entitled  to  recover  all such Loss and  Expense  (including  without
limitation  such  $25,000),  and (ii) in no event  shall  the  aggregate  amount
required to be paid by each  indemnifying  party  pursuant to the  provisions of
this Article exceed  $1,000,000,  except for any Loss or Expense  arising out of
matters  of a  nature  referred  to in  Sections  3.1  and 4.1 as to  which  the
limitations  set forth in this  clause  (ii)  shall not  apply.  Notwithstanding
anything to the contrary  contained  herein,  it is  expressly  agreed to by the
parties  that any lease  payments due under any Lease for any of the Sites being
acquired which comprise the CSD Assets after the Closing shall not be considered
an item of Loss and Expense for  purposes of the  limitation  of  liability  set
forth herein.

         (b) In the case any event shall occur  which  would  otherwise  entitle
either  party  to  assert a claim  for  indemnification  hereunder,  no Loss and
Expense  shall be deemed to have been  sustained  by such party to the extent of
any proceeds  received by such party from any  insurance  policies  with respect
thereto.

         8.4 Notice of Claims.  If an  indemnified  party  believes  that it has
suffered or incurred  any Loss and  Expense,  it shall  notify the  indemnifying
party promptly in writing,  and in any event within the  applicable  time period
specified in Section 8.1, describing such Loss and Expense,  all with reasonable
particularity  and containing a reference to the provisions of this Agreement in
respect of which such Loss and Expense shall have occurred.  If any Legal Action
is  instituted  by a third  party  with  respect to which an  indemnified  party
intends  to claim any  liability  or  expense  as Loss and  Expense  under  this
Article,  such indemnified party shall promptly notify the indemnifying party of
such Legal Action, but the failure to so notify the indemnifying party shall not
relieve such indemnifying party of its obligations under this Article, except to
the extent such failure to notify prejudices such  indemnifying  party's ability
to defend against such Claim.

         8.5 Defense of Third Party Claims.  The  indemnifying  party shall have
the right to  conduct  and  control,  through  counsel  of their  own  choosing,
reasonably  acceptable to the indemnified party, any third party Legal Action or
other Claim, but the indemnified party may, at its election,  participate in the
defense  thereof at its sole cost and expense;  provided,  however,  that if the
indemnifying  party shall fail to defend any such Legal  Action or other  Claim,
then the indemnified party may defend, through counsel of its own choosing, such
Legal Action or other Claim, and (so long as it gives the indemnifying  party at
least fifteen (15) days' notice of the terms of the proposed  settlement thereof
and permits the indemnifying party to then undertake the defense thereof) settle
such Legal Action or other Claim and to recover the amount of such settlement or
of any  judgment and the  reasonable  costs and  expenses of such  defense.  The
indemnifying party shall not compromise or settle any such Legal Action or other
Claim without the prior written consent of the indemnified  party, which consent
shall not  unreasonably  be withheld,  delayed or  conditioned  if the terms and
conditions of such compromise or settlement  proposed by the indemnifying  party
and agreed to in writing by the  claimant  in such Legal  Action or other  Claim
(the "Settlement  Proposal") (a) include a full release of the indemnified party
from the Legal  Action or other  Claim  which is the  subject of the  Settlement
Proposal,  and (b) if the  indemnified  party is ATS, do not include any term or
condition which would restrict in any material manner the continued ownership or
operations of the CSD Assets or the conduct of the CSD Central  Valley  Business
in substantially the manner then being theretofore owned, operated and conducted
by ATS.

         8.6  Exclusive  Remedy.  Except  for fraud or  willful  or  intentional
misrepresentation  or breach of warranty,  covenant or agreement or as otherwise
provided in Section 9.5, the indemnification provided in

                                      -18-


<PAGE>



this Article shall be the sole and exclusive  post-Closing  remedy  available to
either party against the other party for any Claim under this Agreement.


                                    ARTICLE 9

                               GENERAL PROVISIONS


         9.1  Amendment.  This Agreement may be amended from time to time by the
parties  hereto at any time prior to the Closing Date but only by an  instrument
in writing signed by the parties hereto.

         9.2 Waiver. At any time prior to the Closing Date, except to the extent
not  permitted  by  Applicable  Law,  ATS or CSD may  extend  the  time  for the
performance  of any of the  obligations  or other  acts of the  other,  subject,
however,  to the  provisions  with respect to the  Termination  Date,  waive any
inaccuracies in the representations and warranties of the other contained herein
or in any document  delivered pursuant hereto, and waive compliance by the other
with any of the agreements,  covenants or conditions  contained herein. Any such
extension or waiver shall be valid only if set forth in an instrument in writing
signed by the party or parties to be bound thereby.

         9.3 Fees, Expenses and Other Payments. All costs and expenses, incurred
in connection  with any transfer  taxes,  sales taxes,  recording or documentary
taxes,  stamps or other charges levied by any Authority in connection  with this
Agreement and the consummation of the Transactions shall be borne equally by CSD
and ATS. All other costs and expenses incurred in connection with this Agreement
and the consummation of the Transactions,  including without limitation fees and
disbursements  of counsel,  financial  advisors and accountants  incurred by the
parties  hereto,  shall be borne  solely  and  entirely  by the party  which has
incurred such costs and expenses.

         9.4  Notices.  All  notices  and  other  communications  which  by  any
provision of this Agreement are required or permitted to be given shall be given
in  writing  and shall be (a)  mailed by  first-class  or  express  mail,  or by
recognized  courier  service,  postage  prepaid,  (b) sent by  telex,  telegram,
telecopy  or other form of rapid  transmission,  confirmed  by mailing (by first
class or express  mail,  or by  recognized  courier  service,  postage  prepaid)
written  confirmation at substantially the same time as such rapid transmission,
or (c)  personally  delivered  to the  receiving  party  (which if other than an
individual  shall be an  officer  or other  responsible  party of the  receiving
party). All such notices and communications  shall be mailed,  sent or delivered
as follows:

         (a)      If to ATS:

                  116 Huntington Avenue
                  Boston, Massachusetts 02116
                  Attention:   Joseph L. Winn, Chief Financial Officer
                  Telecopier No.:  (617) 375-7575


                                      -19-


<PAGE>



                  with a copy to:

                  Sullivan & Worcester LLP
                  One Post Office Square
                  Boston, Massachusetts 02109
                  Attention:  Norman A. Bikales, Esq.
                  Telecopier No.:  (617) 338-2880

         (b)      If to CSD:

                  7488 Shoreline Drive - Suite B-1
                  Stockton, California 95219
                  Attention:   Michael Wingo, Chief Executive Officer
                  Telecopier No.: (209) 951-5845

                  with a copy to:

                  Taylor, Scott, Nichols and Matteucci
                  120 North Hunter Street
                  Stockton, California   95202
                  Attention:   Christopher P. Papas, Esq.
                  Telecopier No.: (209) 942-4450

or to such other person(s),  telex or facsimile  number(s) or address(es) as the
party to receive any such communication or notice may have designated by written
notice to the other party.

         9.5  Specific  Performance;  Other  Rights  and  Remedies.  Each  party
recognizes and agrees that in the event the other party should refuse to perform
any of its  obligations  under this  Agreement or any Collateral  Document,  the
remedy at law would be inadequate and agrees that for breach of such provisions,
each party shall,  in addition to such other  remedies as may be available to it
at law or in equity or as  provided  in Article  7, be  entitled  to  injunctive
relief and to enforce its rights by an action for  specific  performance  to the
extent permitted by Applicable Law. Each party hereby waives any requirement for
security  or the post ing of any bond or other  surety  in  connection  with any
temporary or permanent award of injunctive, mandatory or other equitable relief.
Nothing  herein  contained  shall be  construed as  prohibiting  each party from
pursuing any other  remedies  available to it pursuant to the provisions of, and
subject to the  limitations  contained  in,  this  Agreement  for such breach or
threatened breach.

         9.6  Severability.  If any term or provision of this Agreement shall be
held or deemed  to be, or shall in fact be,  invalid,  inoperative,  illegal  or
unenforceable  as  applied  to  any  particular  case  in  any  jurisdiction  or
jurisdictions,  or in  all  jurisdictions  or  in  all  cases,  because  of  the
conflicting of any provision with any  constitution or statute or rule of public
policy or for any other reason,  such circumstance  shall not have the effect of
rendering the provision or provisions in question invalid, inoperative,  illegal
or unenforceable in any other  jurisdiction or in any other case or circumstance
or of rendering any other  provision or  provisions  herein  contained  invalid,
inoperative,  illegal or  unenforceable to the extent that such other provisions
are not themselves actually in conflict with such constitution,  statute or rule
of public policy, but this Agreement shall be reformed and construed in any such
jurisdiction or case as if such invalid,  inoperative,  illegal or unenforceable
provision had never been contained herein and such provision reformed so that it
would be valid,  operative and  enforceable to the maximum  extent  permitted in
such jurisdiction or in such case.  Notwithstanding the foregoing,  in the event
of any such  determination  the  effect  of which is to  affect  materially  and
adversely either party, the parties shall negotiate in good faith to modify this

                                      -20-


<PAGE>



Agreement  so as to effect  the  original  intent of the  parties  as closely as
possible to the fullest  extent  permitted by  Applicable  Law in an  acceptable
manner to the end that the  Transactions  are fulfilled and  consummated  to the
maximum extent possible.

         9.7   Counterparts.   This   Agreement   may  be  executed  in  several
counterparts,  each of  which  shall be  deemed  an  original,  but all of which
together shall constitute one and the same  instrument,  binding upon all of the
parties. In pleading or proving any provision of this Agreement, it shall not be
necessary to produce more than one of such counterparts.

         9.8 Section Headings.  The headings contained in this Agreement are for
reference  purposes  only  and  shall  not in any  way  affect  the  meaning  or
interpretation of this Agreement.

         9.9  Governing  Law. The  validity,  interpretation,  construction  and
performance of this Agreement  shall be governed by, and construed in accordance
with,  the  applicable  laws of the United States of America and the laws of the
State of  California  applicable  to contracts  made and performed in such State
and,  in any event,  without  giving  effect to any choice or  conflict  of laws
provision or rule that would cause the application of domestic  substantive laws
of  any  other  jurisdiction.   Anything  in  this  Agreement  to  the  contrary
notwithstanding,  including  without  limitation the provisions of Article 8, in
the event of any dispute  between the parties  which  results in a Legal Action,
the prevailing party shall be entitled to receive from the non-prevailing  party
reimbursement for reasonable legal fees and expenses incurred by such prevailing
party in such Legal Action.

         9.10 Further Acts. Each party agrees that at any time, and from time to
time, before and after the consummation of the transactions contemplated by this
Agreement,  it  will do all  such  things  and  execute  and  deliver  all  such
Collateral  Documents  and other  assurances,  as any other party or its counsel
reasonably  deems  necessary  or  desirable  in order to carry out the terms and
conditions of this  Agreement  and the  transactions  contemplated  hereby or to
facilitate  the enjoyment of any of the rights  created  hereby or to be created
hereunder.

         9.11 Entire Agreement. This Agreement (together with the CSD Disclosure
Schedule and the other Collateral  Documents delivered in connection  herewith),
constitutes  the  entire  agreement  of the  parties  and  supersedes  all prior
agreements and undertakings,  both written and oral,  between the parties,  with
respect to the subject matter hereof,  including without limitation that certain
letter of intent, dated December 19, 1996, between the parties.

         9.12 Assignment. This Agreement shall not be assignable by either party
and any such  assignment  shall be null and void,  except that it shall inure to
the benefit of and by binding  upon any  successor  to any party by operation of
law,  including by way of merger,  consolidation or sale of all or substantially
all of its assets,  and ATS may assign its rights and remedies  hereunder to any
bank or other financial institution which has loaned funds or otherwise extended
credit to it.

         9.13  Parties in  Interest.  This  Agreement  shall be binding upon and
inure  solely to the  benefit of each  party,  and  nothing  in this  Agreement,
express or implied,  is  intended to or shall  confer upon any Person any right,
benefit or remedy of any nature whatsoever under or by reason of this Agreement,
except as otherwise provided in Section 9.12.

         9.14 Mutual Drafting. This Agreement is the result of the joint efforts
of CSD and ATS,  and  each  provision  hereof  has been  subject  to the  mutual
consultation,  negotiation  and  agreement  of the parties and there shall be no
construction  against  either  party based on any  presumption  of that  party's
involvement in the drafting thereof.

                                      -21-


<PAGE>




         9.15  Arbitration  of Disputes.  Subject to the right of the parties to
seek  injunctive  relief pursuant to the provisions of Section 9.5, in the event
of any dispute arising from or related to any of the terms or conditions of this
Agreement,  ATS,  CSD and LLC hereby agree to submit any such dispute to binding
arbitration under the Commercial Rules of the American  Arbitration  Association
at Sacramento, California.


         IN  WITNESS  WHEREOF,  ATS and CSD have  caused  this  Agreement  to be
executed  as of the  date  first  written  above by  their  respective  officers
thereunto duly authorized.

                                       American Tower Systems, Inc.


                                       By:
                                            Name:
                                            Title:

                                       Communication Systems Development, Inc.


                                       By:
                                            Title:


         The undersigned,  Communication  Systems  Development,  LLC, a Delaware
limited liability company, hereby executed the above agreement as of May , 1997,
and hereby  agrees to be bound by, and  understands  that it will be entitled to
the benefits of, the above agreement with the same force and effect as though it
were an original party thereto.

                                        Communication Systems Development, LLC


                                        By:
                                              Name:
                                             Title:



                                      -22-


<PAGE>



                                                                      APPENDIX A

                                   DEFINITIONS

         As used in this Agreement,  unless the context otherwise requires,  the
following  terms  (or any  variant  in the  form  thereof)  have  the  following
respective  meanings.  Terms  defined in the  singular  shall have a  comparable
meaning when used in the plural, and vice versa, and the reference to any gender
shall be deemed to include all genders.  Unless otherwise defined or the context
otherwise clearly  requires,  terms for which meanings are provided herein shall
have such meanings when used in the CSD Disclosure Schedule, and each Collateral
Document  executed  or required  to be  executed  pursuant  hereto or thereto or
otherwise delivered,  from time to time, pursuant hereto or thereto.  References
to "hereof", "herein" or similar terms are intended to refer to the Agreement as
a whole and not a  particular  Section,  and  references  to "this  Section" are
intended to refer to the entire Section and not a particular subsection thereof.
The term "either party" shall, unless the context otherwise  requires,  refer to
CSD and ATS.

         Acceptance Notice shall have the meaning given to it in Section 2.2(c).

         adverse,  adversely, when used alone or in conjunction with other terms
(including  without  limitation  "affect," "change" and "effect") shall mean any
Event which is reasonably likely, in the reasonable business judgment of ATS, to
be expected to (a)  adversely  affect the  validity  or  enforceability  of this
Agreement  or  the  likelihood  of  consummation  of  the  Transactions,  or (b)
adversely affect the business, operations,  management, properties or prospects,
or the condition, financial or other, or results of operation of the CSD Central
Valley  Business,  or (c) impair CSD's ability to fulfill its obligations  under
the terms of this Agreement,  or (d) adversely  affect the aggregate  rights and
remedies  of ATS  under  this  Agreement.  Notwithstanding  the  foregoing,  and
anything in this Agreement to the contrary notwithstanding,  any Event generally
affecting the economy or the tower  communications  business shall not be deemed
to constitute such a change, affect or effect.

         Affiliate,  Affiliated shall mean, with respect to any Person,  (a) any
other Person at the time  directly or indirectly  controlling,  controlled by or
under direct or indirect  common control with such Person,  (b) any other Person
of which such Person at the time owns, or has the right to acquire,  directly or
indirectly,  twenty  percent  (20%) or more of any class of the capital stock or
beneficial  interest,  (c) any other Person  which at the time owns,  or has the
right to acquire,  directly or  indirectly,  twenty percent (20%) or more of any
class of the  capital  stock or  beneficial  interest  of such  Person,  (d) any
executive  officer  or  director  of  such  Person,  (e)  with  respect  to  any
partnership,  joint venture or similar Entity, any general partner thereof,  and
(f) when used with respect to an  individual,  shall  include any member of such
individual's immediate family or a family trust.

         Agreement shall mean this Agreement as originally in effect, including,
unless the context  otherwise  specifically  requires,  this Appendix A, the CSD
Disclosure  Schedule  and all exhibits  hereto,  and as any of the same may from
time to time be supplemented, amended, modified or restated in the manner herein
or therein provided.

         Applicable Law shall mean any Law of any Authority, whether domestic or
foreign,  including  without  limitation  the  FCA  and all  federal  and  state
securities and  Environmental  Laws, to which a Person is subject or by which it
or any of its business or operations is subject or any of its property or assets
is bound.

         ATS shall have the meaning given to it in the Preamble.

         ATS'  Noncompetition  Agreements  shall have the meaning given to it in
Section 6.2(i).

                                       A-1


<PAGE>



         Authority shall mean any governmental or quasi-governmental  authority,
whether  administrative,  executive,  judicial,  legislative  or  other,  or any
combination   thereof,   including  without   limitation  any  federal,   state,
territorial,   county,   municipal  or  other   government  or  governmental  or
quasi-governmental agency, arbitrator,  authority,  board, body, branch, bureau,
central bank or comparable  agency or Entity,  commission,  corporation,  court,
department,  instrumentality,  master, mediator, panel, referee, system or other
political unit or  subdivision or other Entity of any of the foregoing,  whether
domestic or foreign, including without limitation the FCC.

         Base Purchase Price shall have the meaning given to it in Section 2.3.

         Claims shall mean any and all debts, liabilities,  obligations, losses,
damages,  deficiencies,  assessments  and  penalties,  together  with all  Legal
Actions, pending or threatened, claims and judgments of whatever kind and nature
relating  thereto,  and all fees, costs,  expenses and disbursements  (including
without  limitation  reasonable  attorneys'  and  other  legal  fees,  costs and
expenses) relating to any of the foregoing.

         Closing shall have the meaning given to it in Section 2.3.

         Closing Date shall have the meaning given to it in Section 2.3.

         Collateral Document shall mean the ATS Noncompetition  Agreements,  the
Nonassignable Contracts Agreement, the LLC Agreement, bills of sale, assignments
of  intangibles,   assumption   agreements  with  respect  to  the  CSD  Assumed
Obligations,  other instruments of conveyance and assignment  sufficient to vest
in ATS title to all of the other CSD Assets and the CSD Central Valley Business,
and any other agreement,  certificate,  contract, instrument, notice, opinion or
other  document  delivered  pursuant to the  provisions of this Agreement or any
Collateral Document.

         Contract, Contractual Obligation shall mean any agreement, arrangement,
commitment,  contract, covenant,  indemnity,  undertaking or other obligation or
liability  which  involves  the  ownership or operation of the CSD Assets or the
conduct of the CSD Central Valley Business.

         Control (including the terms  "controlled,"  "controlled by" and "under
common control with") means the possession, directly or indirectly or as trustee
or executor,  of the power to direct or cause the direction of the management or
policies of a Person,  or the disposition of such Person's assets or properties,
whether through the ownership of stock, equity or other ownership,  by contract,
arrangement or understanding,  or as trustee or executor,  by contract or credit
arrangement or otherwise.

         CSD shall have the meaning given to it in the Preamble.

         CSD Assumable  Agreements shall mean all obligations and liabilities of
CSD under all Leases, Material Agreements, Governmental Authorizations,  Private
Authorizations,  the other Contractual  Obligations not required to be listed on
Section 3.10 of the CSD Disclosure  Schedule entered into in the ordinary course
of business and relating to the  ownership or operation of any of the CSD Assets
or the conduct of the CSD  Central  Valley  Business,  and the letter of intent,
dated , 1997 between
CSD and                                                              .

         CSD Assets shall have the meaning given to it in Section 2.1.

         CSD Assumed  Liabilities  shall have the meaning given to it in Section
2.2(b).

         CSD Central  Valley  Business  shall have the meaning given them in the
first Whereas paragraph.

                                       A-2


<PAGE>



         CSD Disclosure Schedule shall mean the CSD Disclosure Schedule dated as
of the date of this Agreement delivered by CSD to ATS.

         CSD  Nonassumed  Obligations  shall  have  the  meaning  given to it in
Section 2.2(b).

         CSD's knowledge means the actual knowledge of any CSD officer or senior
manager,  as such  knowledge  exists on the date of this  Agreement and no later
date, after reasonable review of appropriate CSD records.

         Encumber  shall  mean  to  suffer,  accept,  agree  to  or  permit  the
imposition of a Lien.

         Entitled  Site  Payment  shall have the meaning  given to it in Section
2.3.

         Entitled  Sites  shall have the  meaning  given to it in first  Whereas
paragraph.

         Entity shall mean any corporation,  firm, unincorporated  organization,
association,  partnership,  limited  liability  company,  trust  (inter vivos or
testamentary),  estate of a deceased, insane or incompetent individual, business
trust,  joint stock  company,  joint  venture or other  organization,  entity or
business,  whether acting in an individual,  fiduciary or other capacity, or any
Authority.

         Environmental Law shall mean any Law relating to or otherwise  imposing
liability or  standards of conduct  concerning  pollution or  protection  of the
environment,   including   without   limitation   Laws  relating  to  emissions,
discharges,  releases or  threatened  releases of  Hazardous  Materials or other
chemicals or  industrial  pollutants,  substances,  materials or wastes into the
environment (including,  without limitation,  ambient air, surface water, ground
water,  mining or reclamation or mined land, land surface or subsurface  strata)
or otherwise relating to the manufacture,  processing, generation, distribution,
use, treatment, storage, disposal, cleanup, transport or handling of pollutants,
contaminants,  chemicals or industrial, toxic or hazardous substances, materials
or wastes. Environmental Laws shall include without limitation the Comprehensive
Environmental  Response,  Compensation and Liability Act (42 U.S.C. Section 6901
et seq.), the Hazardous Material  Transportation Act (49 U.S.C.  Section 1801 et
seq.),  the Resource  Conservation  and Recovery Act (42 U.S.C.  Section 6901 et
seq.), the Federal Water Pollution Control Act (33 U.S.C. Section 1251 et seq.),
the Clean Air Act (42 U.S.C. Section 7401 et seq.), the Toxic Substances Control
Act (15 U.S.C. Section 2601 et seq.), the Occupational Safety and Health Act (29
U.S.C.  Section 651 et seq.), the Federal Insecticide  Fungicide and Rodenticide
Act (7  U.S.C.  Section  136 et  seq.),  and  the  Surface  Mining  Control  and
Reclamation  Act of 1977 (30 U.S.C.  Section  1201 et seq.),  and any  analogous
federal,   state,  local  or  foreign,  Laws,  and  the  rules  and  regulations
promulgated  thereunder all as from time to time in effect, and any reference to
any statutory or regulatory  provision  shall be deemed to be a reference to any
successor statutory or regulatory provision.

         Environmental Permit shall mean any Governmental Authorization required
by or pursuant to any Environmental Law.

         Escrow  Agent shall have the meaning  given to it in the fifth  Whereas
paragraph.

         Escrow  Agreement  shall  have the  meaning  given  to it in the  fifth
Whereas paragraph.

         Escrow  Deposit shall have the meaning given to it in the fifth Whereas
paragraph.

         Event  shall  mean the  existence  or  occurrence  of any act,  action,
activity,  circumstance,  condition,  event,  fact,  failure  to act,  omission,
incident or practice, or any set or combination of any of the foregoing.

                                       A-3


<PAGE>




         FCA  shall  mean the  Communication  Act of  1934,  and the  rules  and
regulations  thereunder,  all as from time to time in effect,  or any  successor
law,  rules or  regulations,  and any  reference to any  statutory or regulatory
provision  shall be deemed  to be a  reference  to any  successor  statutory  or
regulatory provision.

         FCC shall mean the Federal Communications  Commission and shall include
any successor Authority.

         Governmental  Authorizations  shall  mean all  approvals,  concessions,
consents,   franchises,   licenses,  permits,  plans,  registrations  and  other
authorizations  of all  Authorities,  including  without  limitation  the United
States Forest  Service and the Federal  Aviation  Administration,  in connection
with the  ownership  or  operation  of the CSD Assets or the  conduct of the CSD
Central Valley Business.

         Governmental  Filings shall mean all filings,  including  franchise and
similar Tax  filings,  and the payment of all fees,  assessments,  interest  and
penalties associated with such filings, with all Authorities.

         Hazardous  Materials  shall mean and include any  substance,  material,
waste, constituent, compound, chemical, natural or man-made element or force (in
whatever state of matter):  (a) the presence of which requires  investigation or
remediation under any Environmental  Law, or (b) that is defined as a "hazardous
waste" or  "hazardous  substance"  under any  Environmental  Law; or (c) that is
toxic, explosive,  corrosive,  etiologic,  flammable,  infectious,  radioactive,
carcinogenic,   mutagenic  or  otherwise  hazardous  and  is  regulated  by  any
applicable Authority or subject to any Environmental Law; or (d) the presence of
which on the real property owned or leased by such Person causes or threatens to
cause a nuisance upon any such real property or to adjacent  properties or poses
or threatens to pose a hazard to the health or safety of persons on or about any
such real property;  or (e) the presence of which on adjacent  properties  could
constitute a trespass by such Person; or (f) that contains gasoline, diesel fuel
or other  petroleum  hydrocarbons,  or any  by-products  or  fractions  thereof,
natural gas,  polychlorinated  biphenyls ("PCBs") and PCB-containing  equipment,
radon or other radioactive elements,  ionizing radiation,  electromagnetic field
radiation  and other  non-ionizing  radiation,  sonic  forces and other  natural
forces,  lead,  asbestos  or  asbestos-containing  materials  ("ACM"),  or  urea
formaldehyde foam insulation.

         Intangible  Assets shall mean all assets and property  lacking physical
properties the evidence of ownership of which must  customarily be maintained by
independent  registration,  documentation,  certification,  recordation or other
means,  and  shall  include,   without  limitation,   concessions,   copyrights,
franchises,  license, patents, permits, service marks, trademarks,  trade names,
and applications with respect to any of the foregoing, technology and know-how.

         Intellectual  Property  shall mean any and all  research,  information,
inventions,  designs,  procedures,  developments,   discoveries,   improvements,
patents and applications therefor, trademarks and applications therefor, service
marks, trade names, copyrights and applications therefor,  logos, trade secrets,
drawing, plans, systems,  methods,  specifications,  computer software programs,
tapes, discs and related data processing  software (including without limitation
object and source  codes)  owned by such Person or in which it has an  ownership
interest  and all other  manufacturing,  engineering,  technical,  research  and
development data and know-how made, conceived, developed and/or acquired by such
Person,  which  relate  to the  manufacture,  production  or  processing  of any
products  developed  or sold by such  Person or which are within the scope of or
usable in connection  with such Person's  business as it may, from time to time,
hereafter be conducted or proposed to be conducted.

         Law shall mean any (a) administrative,  judicial,  legislative or other
action,  code,  consent  decree,  constitution,  decree,  directive,  enactment,
finding, guideline, law, injunction, interpretation, judgment, order, ordinance,
policy statement,  proclamation,  promulgation,  regulation,  requirement, rule,
rule of law, rule of

                                       A-4


<PAGE>



public policy, settlement agreement, statute, or writ of any Authority, domestic
or foreign; (b) the common law, or other legal or quasi-legal precedent;  or (c)
arbitrator's,    mediator's   or   referee's   award,   decision,   finding   or
recommendation;  including,  in each such case or instance,  any interpretation,
directive,  guideline  or  request,  whether  or not  having  the  force  of law
including,  in all cases,  without  limitation any particular  section,  part or
provision thereof.

         Lease  shall mean any lease of  property,  whether  real,  personal  or
mixed, and all amendments thereto.

         Legal  Action  shall  mean,  with  respect to any  Person,  any and all
litigation   or   legal   or   other   actions,   arbitrations,   counterclaims,
investigations, proceedings, requests for material information by or pursuant to
the  order of any  Authority  or  suits,  at law or in  arbitration,  equity  or
admiralty,  whether or not  purported  to be  brought on behalf of such  Person,
affecting such Person or any of such Person's business, property or assets.

         Lien shall mean any of the  following:  mortgage;  lien  (statutory  or
other);  or other security  agreement,  arrangement or interest;  hypothecation,
pledge  or  other  deposit  arrangement;  assignment;  charge;  levy;  executory
seizure;   attachment;   garnishment;   encumbrance   (including  any  easement,
exception,  reservation or limitation,  right of way, and the like); conditional
sale,  title  retention  or other  similar  agreement,  arrangement,  device  or
restriction;   preemptive  or  similar  right;  any  financing  lease  involving
substantially  the same economic  effect as any of the foregoing;  the filing of
any financing  statement under the Uniform  Commercial Code or comparable law of
any  jurisdiction;  restriction on sale,  transfer,  assignment,  disposition or
other alienation; or any option, equity, claim or right of or obligation to, any
other Person, of whatever kind and character.

         LLC shall have the meaning given to it in the second Whereas paragraph.

         LLC Agreement  shall have the meaning given to it in the second Whereas
paragraph.

         Loss and Expense shall have the meaning given to it in Section 8.2.

         material, materially or materiality for the purposes of this Agreement,
shall, unless specifically stated to the contrary,  be determined without regard
to the fact that various  provisions of this Agreement set forth specific dollar
amounts.

         Material  Agreement  shall mean,  with respect to CSD, any  Contractual
Obligation  which (a) was not entered into in the  ordinary  course of business,
(b) was entered into in the ordinary  course of business  which (i) involved the
purchase,  sale or lease  of  goods  or  materials,  or  purchase  of  services,
aggregating  more than $20,000  during any of the last three fiscal years,  (ii)
extends for more than three (3)  months,  or (iii) is not  terminable  on thirty
(30) days or less  notice  without  penalty  or other  payment,  (c)  involves a
capitalized  lease  obligation or  Indebtedness  for Money  Borrowed,  (d) is or
otherwise   constitutes   a   written   agency,   broker,    dealer,    license,
distributorship,   sales  representative  or  similar  written  agreement,   (e)
accounted  for more than three  percent  (3%) of the revenues of the CSD Central
Valley  Business in any of the last three  fiscal  years or is likely to account
for more than three percent (3%) of revenues of the CSD Central Valley  Business
during the current  fiscal year, (f) is with the United States Forest Service or
any other Authority, or (g) involves the lease by CSD of any Site.

         Nonassignable  Contracts  shall have the meaning given to it in Section
2.2(c).

         Nonassignable Contracts Agreement shall have the meaning given to it in
Section 6.2(i).


                                       A-5


<PAGE>



         Organic  Document  shall  mean,  with  respect  to a Person  which is a
corporation,  its charter,  its by-laws and all shareholder  agreements,  voting
trusts and similar arrangements applicable to any of its capital stock and, with
respect to a Person which is a  partnership,  its agreement and  certificate  of
partnership,  any  agreements  among  partners,  and any  management and similar
agreements  between the partnership  and any general  partners (or any Affiliate
thereof).

         Permitted  Liens shall mean (a) Liens for current taxes not yet due and
payable, (b) such imperfections of title, easements,  encumbrances and mortgages
or  other  Liens,  if  any,  as  are  not,  individually  or in  the  aggregate,
substantial in character,  amount or extent and do not  materially  detract from
the value, or materially interfere with the present use, of the property subject
thereto or affected thereby,  or otherwise  materially impair the conduct of the
CSD Central  Valley  Business,  and (c) such other Liens as are permitted by the
provisions of this Agreement to be in place on the Closing Date.

         Person shall mean any natural individual or any Entity.

         Prepaid Expense shall mean any item which in accordance with GAAP would
be treated as an expense and which has been paid by CSD prior to the Closing and
relates to a period subsequent to the Closing.

         Prepaid Revenue shall mean any item which in accordance with GAAP would
be treated as revenue  and which has been  received  by CSD prior to the Closing
and relates to a period subsequent to the Closing.

         Private Authorizations shall mean all approvals, concessions, consents,
franchises,  licenses,  permits,  and other authorizations of all Persons (other
than   Authorities)   including   without   limitation  those  with  respect  to
Intellectual Property.

         Pro Ratable Taxes shall mean real estate and other property  Taxes,  ad
valorem Taxes,  gross  receipts  Taxes and similar Taxes,  but shall not include
federal, state or local income Taxes, franchise Taxes or other Taxes measured by
or based upon income or gain on sale or other disposition of property or assets.

         Purchase Price shall have the meaning given to it in Section 2.3.

         Real Property shall mean all of the fee estates and buildings and other
fixtures and improvements  thereon,  leasehold  interest,  easements,  licenses,
rights to access,  right-of-  way, and other real  property  interest  which are
owned or used by CSD as of the date hereof, in the operations of the CSD Central
Valley Business,  plus such additions thereto and deletions therefrom arising in
the ordinary course of business between the date hereof and the Closing Date.

         Regulations  shall mean the federal income tax regulations  promulgated
under  the Code,  as such  Regulations  may be  amended  from time to time.  All
references  herein to specific  sections of the Regulations shall be deemed also
to refer to any  corresponding  provisions  of succeeding  Regulations,  and all
references  to  temporary  Regulations  shall  be  deemed  also to  refer to any
corresponding provisions of final Regulations.

         Remaining Sites shall have the meaning given to it in the first Whereas
paragraph.

         Representatives shall have the meaning given to it in Section 5.1(a).

         Sites  shall  have  the  meaning  given  to it  in  the  first  Whereas
paragraph.


                                       A-6


<PAGE>


         Subsidiary shall mean, with respect to a Person,  any Entity a majority
of the capital stock  ordinarily  entitled to vote for the election of directors
of which,  or if no such voting stock is  outstanding,  a majority of the equity
interests of which, is owned directly or indirectly, legally or beneficially, by
such Person or any other Person controlled by such Person.

         Tax (and "Taxable",  which shall mean subject to Tax), shall mean, with
respect to any Person,  (a) all taxes (domestic or foreign),  including  without
limitation any income (net, gross or other including  recapture of any tax items
such as  investment  tax  credits),  alternative  or add-on  minimum tax,  gross
income,  gross receipts,  gains,  sales, use, leasing,  lease, user, ad valorem,
transfer, recording, franchise, profits, property (real or personal, tangible or
intangible),  fuel,  license,  withholding on amounts paid to or by such Person,
payroll,  employment,  unemployment,  social security, excise, severance, stamp,
occupation, premium, environmental or windfall profit tax, custom, duty or other
tax, or other like  assessment or charge of any kind  whatsoever,  together with
any  interest,  levies,  assessments,  charges,  penalties,  addition  to tax or
additional  amount  imposed  by any Taxing  Authority,  (b) any joint or several
liability of such Person with any other Person for the payment of any amounts of
the type  described in (a) and (c) any  liability of such Person for the payment
of any  amounts  of the type  described  in (a) as a result  of any  express  or
implied obligation to indemnify any other Person.

         Termination Date shall have the meaning given to it in Section 7.1.

         Transactions shall mean the transactions contemplated to be consummated
on or prior to the Closing Date,  including without  limitation the purchase and
sale  of the  interest  in the  CSD  Assets,  and the  execution,  delivery  and
performance of the Collateral Documents.





                                       A-7

                                                                   EXHIBIT 10.1b















                     COMMUNICATION SYSTEMS DEVELOPMENT, LLC

                     AGREEMENT OF LIMITED LIABILITY COMPANY

                            Dated as of May 30, 1997













<PAGE>

<TABLE>
<CAPTION>
                     COMMUNICATION SYSTEMS DEVELOPMENT, LLC
                     AGREEMENT OF LIMITED LIABILITY COMPANY

                                TABLE OF CONTENTS
                                                                                                                Page
<S>              <C>                                                                                            <C>
ARTICLE 1         DEFINITIONS.....................................................................................1

ARTICLE 2         FORMATION OF LIMITED LIABILITY COMPANY..........................................................1
                  2.1      Formation.  ...........................................................................1
                  2.2      Company Name...........................................................................1
                  2.3      The Certificate, Etc...................................................................2
                  2.4      Principal Business Office, Registered Office and Registered Agent......................2
                  2.5      Term of the Company....................................................................2
                  2.6      Purposes...............................................................................2
                  2.7      Powers.................................................................................2

 ARTICLE 3        CAPITALIZATION..................................................................................3
                  3.1      Initial Capital Contributions..........................................................3
                  3.2      ATS Construction Funding...............................................................3
                  3.3      Other Required Funds...................................................................4
                  3.4      Capital Accounts. .....................................................................5
                  3.5      Transfer of Capital Accounts...........................................................6
                  3.6      Deficit Capital Accounts...............................................................6
                  3.7      Additional Equity......................................................................6

ARTICLE 4         BOOKS; ACCOUNTING; TAX ELECTIONS; REPORTS ......................................................6
                  4.1      Fiscal Year............................................................................6
                  4.2      Method of Accounting and Taxation......................................................6
                  4.3      Books and Records and Inspection.......................................................6
                  4.4      Reports................................................................................7
                  4.5      Filing of Returns and Other Writings; Tax Matters Member.  ............................8

ARTICLE 5         ALLOCATIONS.....................................................................................8
                  5.1      Allocations of Profit and Loss.........................................................8
                  5.2      Section 754 Election...................................................................9
                  5.3      Allocations for Tax and Book Purposes..................................................9
                  5.4      Certain Accounting Matters.............................................................9
                  5.5      Tax Allocations; Code Section 704(c)...................................................9
                  5.6      Compliance With Section 704(b).........................................................9
                  5.7      Curative Allocations..................................................................10

 ARTICLE 6        DISTRIBUTIONS..................................................................................11
                  6.1      Distributions Other Than Proceeds of Any Liquidating Transaction......................11
                  6.2      Proceeds of Any Liquidating Transaction...............................................11
                  6.3      Liquidation of Member's Interest......................................................11

ARTICLE 7         RIGHTS AND OBLIGATIONS OF MEMBERS..............................................................12
                  7.1      Limited Liability.....................................................................12
                  7.2      Management and Control, Etc...........................................................12
                  7.3      Evidence of Authority, Etc............................................................13
                  7.4      Other Business, Etc...................................................................14

                                     

<PAGE>



                  7.5      Indemnification.......................................................................14
                  7.6      Agreements with Affiliates............................................................15
                  7.7      Payment of Expenses; Compensation.....................................................15

ARTICLE 8         TRANSFERS OF INTERESTS, ETC....................................................................15
                  8.1      Consent Required......................................................................15
                  8.2      Right of First Refusal................................................................16
                  8.3      Buy/Sell..............................................................................16
                  8.4      CSD Right/Obligation of Exchange.  ...................................................18
                  8.5      Obligations and Rights of Transferees and Assignees...................................19
                  8.6      Non-Recognition of Certain Transfers..................................................19
                  8.7      Required Amendments; Continuation.....................................................19
                  8.8      Resignation...........................................................................19

ARTICLE 9         TERMINATION....................................................................................20
                  9.1      Events of Dissolution.................................................................20
                  9.2      Application of Assets.................................................................20
                  9.3      Distributions in Liquidation..........................................................20

ARTICLE 10        MISCELLANEOUS..................................................................................20
                  10.1     Notices...............................................................................20
                  10.2     Specific Performance; Other Rights and Remedies.......................................21
                  10.3     Severability..........................................................................21
                  10.4     Counterparts..........................................................................21
                  10.5     Section Headings......................................................................21
                  10.6     Title to Company Property.............................................................21
                  10.7     Governing Law.........................................................................22
                  10.8     Further Acts..........................................................................22
                  10.9     Entire Agreement......................................................................22
                  10.10    Assignment............................................................................22
                  10.11    Parties in Interest...................................................................22
                  10.12    Mutual Drafting.......................................................................22
                  10.13    Amendments; Waivers...................................................................22
                  10.14    Schedule..............................................................................23
</TABLE>

Member Schedule - Initial Capital Contributions of the Members

                                      -ii-

<PAGE>



                     COMMUNICATION SYSTEMS DEVELOPMENT, LLC

                     AGREEMENT OF LIMITED LIABILITY COMPANY


         THIS AGREEMENT OF LIMITED LIABILITY COMPANY of Communication Systems
Development,  LLC,  dated  as of May 30,  1997,  is  entered  into by and  among
American Tower Systems,  Inc., a Delaware corporation ("ATS"), and Communication
Development Corporation, Inc., a California corporation ("CSD").

                                WITNESSETH THAT:

         WHEREAS,  the undersigned  desire,  by execution of this Agreement,  to
form a limited  liability  company  pursuant to the Delaware  Limited  Liability
Company  Act, 6 Del.  C.  ss.18-101  et seq.  (as from time to time  amended and
including any successor statute of similar import, the "Act");

         NOW,  THEREFORE,  in  consideration  of  the  mutual  covenants  herein
contained and other  valuable  consideration,  the receipt and adequacy of which
are hereby acknowledged, the parties hereto do hereby agree as follows:

                                    ARTICLE 1

                                   DEFINITIONS

         As used  herein,  unless  the  context  otherwise  requires,  the terms
defined in  Appendix A shall have the  respective  meanings  set forth  therein.
Terms defined in the singular  shall have a comparable  meaning when used in the
plural,  and vice  versa,  and the  reference  to any gender  shall be deemed to
include all genders.  Unless otherwise  defined or the context otherwise clearly
requires,  terms for which  meanings are provided in this  Agreement  shall have
such  meanings  when used in each  document  executed or required to be executed
pursuant hereto or thereto or otherwise  delivered,  from time to time, pursuant
hereto or  thereto.  The words such as  "herein",  "hereinafter",  "hereof"  and
"hereunder"  refer to this  Agreement as a whole and not merely to a subdivision
in which such words appear unless the context otherwise  requires.  The singular
shall include the plural and the masculine gender shall include the feminine and
neuter, and vice versa, unless the context otherwise requires.


                                    ARTICLE 2

                     FORMATION OF LIMITED LIABILITY COMPANY

         2.1  Formation.  The parties,  by execution of this  Agreement,  hereby
enter into and join  together in, and do hereby  form,  the Company as a limited
liability  company under and pursuant to the Act.  Each party hereto  represents
and warrants that it is duly  authorized to join in this  Agreement and that the
Person executing this Agreement on its behalf is duly authorized to do so.

         2.2  Company  Name.  The name of the  Company  shall  be  Communication
Systems  Development,  LLC. The business of the Company shall be conducted under
such name or such other names as may from time be established by a Determination
of the Members.
                                

<PAGE>


         2.3 The  Certificate,  Etc. One or more of the Members,  as  authorized
persons shall execute and file the  Certificate,  together with a duplicate copy
thereof, with the Secretary of State of the State of Delaware,  and upon receipt
from the  Secretary  of State of the  duplicate  copy (and any  certificates  of
amendment  thereto that may  subsequently be filed) marked "Filed",  the Members
executing  the  Certificate  shall  promptly  deliver  or mail,  or caused to be
delivered  or mailed,  a copy of the  Certificate  (or any such  certificate  of
amendment) to any Member not so executing the  Certificate  (or  certificate  of
amendment). The Members hereby agree (or to cause one or more of the individuals
designated  as managers  under  Section 7.2 hereof) to execute,  file and record
such other certificates and documents,  including amendments to the Certificate,
and to do such other acts as may be appropriate to comply with all  requirements
for the formation,  continuation and operation of a limited  liability  company,
the  ownership  of property,  and the conduct of business  under the laws of the
State of  Delaware  and any  other  jurisdiction  in which the  Company  may own
property or conduct business.

         2.4 Principal Business Office,  Registered Office and Registered Agent.
The principal  business office of the Company shall be located at 7488 Shoreline
Drive,  Suite 1-B,  Stockton,  California 95219 or at such other location as may
hereafter be designated by a Determination of the Members. The registered office
of the Company  shall be c/o  Corporation  Service  Company,  1013 Centre  Road,
Wilmington,  New Castle County, Delaware 19805. The registered agent for service
of process on the Company shall be Corporation Service Company, whose address is
1013 Centre Road, Wilmington,  New Castle County,  Delaware 19805. The principal
business office,  the registered  office and the registered agent of the Company
may be changed  from time to time upon a  Determination  of the  Members  and in
accordance  with  the  then  applicable  provisions  of the Act  and  any  other
applicable laws. The Members shall be promptly notified in writing of any change
in such principal  office,  registered office or registered agent for service of
process.

         2.5 Term of the Company.  The term of the Company shall commence on the
date of the initial filing of the  Certificate  with the office of the Secretary
of State of the State of Delaware (the  "Effective  Date"),  and shall  continue
until December 31, 2047 unless it is sooner dissolved pursuant to the provisions
of Section 9.1.

         2.6 Purposes. The purpose of the Company is to engage, whether directly
or  indirectly,  in  the  development,   ownership,  operation,  management  and
disposition of communication  towers and communication tower sites and to engage
in all actions necessary, convenient or incidental to the foregoing. The Company
shall not engage in any other business or activity  without a  Determination  of
the Members.

         2.7 Powers.  In furtherance of its purposes,  but subject to all of the
provisions  of this  Agreement,  the Company  shall have the power and is hereby
authorized to:

                  (a) acquire by purchase,  lease,  contribution  of property or
         otherwise and own, hold, sell,  convey,  transfer or dispose of real or
         personal  property which may be necessary,  convenient or incidental to
         the accomplishment of the purposes of the Company;

                  (b) act as a general  or  limited  partner  of any  general or
         limited  partnership  of which  the  Company  may be a  partner  and to
         exercise  all  of  the  powers,  duties,  rights  and  responsibilities
         associated therewith;

                  (c)  take  any  and  all  actions  necessary,   convenient  or
         appropriate  as the  holder of  partnership  interests,  including  the
         granting or approval of waivers,  consents or  amendments  of rights or
         powers relating  thereto and the execution of appropriate  documents to
         evidence such waivers, consents or amendments;

                                       -2-


<PAGE>

                  (d) operate, purchase,  maintain, finance, improve, own, sell,
         convey, assign, mortgage, lease or demolish or otherwise dispose of any
         real  or  personal  property  which  may be  necessary,  convenient  or
         incidental to the accomplishment of the purposes of the Company;

                  (e)  borrow  money  and issue  evidences  of  indebtedness  in
         furtherance  of any or all of the purposes of the  Company,  and secure
         the  same by  mortgage,  pledge  or  other  lien on the  assets  of the
         Company;

                  (f) invest any funds of the Company  pending  distribution  or
         payment of the same pursuant to the provisions of this Agreement;

                  (g) prepay in whole or in part, refinance,  recast,  increase,
         modify or extend any  indebtedness  of the Company  and, in  connection
         therewith,  execute any extensions,  renewals or  modifications  of any
         mortgage or security agreement securing such indebtedness;

                  (h) enter into,  perform and carry out  contracts of any kind,
         including,  without  limitation,  contracts  with  any  Affiliate  of a
         Member,  necessary  to,  in  connection  with,  or  incidental  to  the
         accomplishment of the purposes of the Company;

                  (i)  establish  reserves  for  capital  expenditures,  working
         capital, debt service, taxes, assessments, insurance premiums, repairs,
         improvements,   depreciation,   depletion,  obsolescence,  and  general
         maintenance of buildings and other property out of the rents,  profits,
         or other income received;

                  (j) employ or otherwise engage employees, managers, directors,
         contractors, advisors and consultants (including without limitation any
         Member) and pay reasonable compensation for such services;

                  (k) enter  into  partnerships  or other  ventures  with  other
         Persons  (including  without limitation any Affiliate of any Member) in
         furtherance of the purposes of the Company; and

                  (l) do such other  things and engage in such other  activities
         related to the foregoing as may be  necessary,  convenient or advisable
         with respect to the conduct of the  business of the  Company,  and have
         and  exercise  all of the  powers  and rights  conferred  upon  limited
         liability companies formed pursuant to the Act.


                                    ARTICLE 3

                                 CAPITALIZATION

         3.1 Initial Capital Contributions. Each of the Members shall contribute
or cause to be contributed to the Company, on the Effective Date, as its Initial
Capital  Contribution,  the cash and  other  property  set  forth on the  Member
Schedule.

         3.2 ATS  Construction  Funding.  ATS agrees to make, from time to time,
Additional Capital Contributions for the purposes of constructing  communication
towers  and  other  improvements  on the  sites to be  acquired  by the  Company
pursuant to the consummation of the transactions contemplated by the

                                       -3-


<PAGE>



Acquisition  Agreement  and,  in  addition  from  time to  time,  for  acquiring
additional sites and constructing  communication  towers and other  improvements
thereon, subject to the following conditions:

                  (i) ATS  shall  have  approved  the  acquisition  of any  such
         additional site for which the Additional Capital  Contribution is to be
         used, such approval not to be unreasonably withheld; and

                  (ii) CSD  shall  have  prepared  in good  faith,  based on the
         results  of  comparable  sites and towers  owned by the  Company or any
         Affiliates  of any of the Members,  and  furnished to ATS not less than
         thirty  (30)  days  prior  to the  proposed  acquisition  of the site a
         financial  analysis of the costs associated with such acquisition,  the
         construction  of  the  communication  tower  or  towers  thereon,   the
         estimated  revenue to be  obtained  and  expenses to be incurred in the
         operation and maintenance of such tower or towers.

         Upon receipt of such financial analysis,  and such other information as
it shall have reasonably requested,  ATS shall determine, in good faith, whether
it reasonably believes that the proposed project is in the best interests of the
Company.  In the  event it  agrees  that they will or is, as the case may be, it
shall be obligated to make the Additional  Capital  Contribution  referred to in
such  financial  analysis  in  a  timely  manner  in  order  to  facilitate  the
acquisition  of the  site and the  construction  of the  communication  tower or
towers.  Any  Additional  Capital  Contribution  made  by  ATS  pursuant  to the
provisions  of  this  Section  will  not  in  any  way  result  in a  change  or
modification as to any Member's  Company  Interest as initially set forth in the
Member  Schedule,  but shall only be  reflected  as an increase in ATS'  Capital
Account.  In the event ATS shall  not have  given  written  notice to CSD of its
objection (an "Objection Notice") to the acquisition within ten (10) days of the
receipt of such  financial  analysis  (and any other  information  with  respect
thereto which it has reasonably requested),  it shall be deemed to have approved
such  acquisition  and  shall  be  obligated  to make  such  Additional  Capital
Contribution. In the event ATS shall have given an Objection Notice (which shall
specify in reasonable detail the basis thereof),  CSD and ATS shall negotiate in
good faith in an effort to resolve their  differences  to the end that ATS would
be willing to make the Additional Capital Contribution. In the event ATS and CSD
are unable to resolve their differences  within twenty (20) days, CSD shall have
the  right,  in its sole and  absolute  discretion,  to (x) make the  Additional
Capital  Contribution  on the same terms and  conditions as ATS would  otherwise
have made such  Additional  Capital  Contribution,  (ii) to advance the required
funds in the form of a Member Loan, (iii) to obtain such funds as a loan from an
Unaffiliated  Person in accordance  with the provisions of Section 3.3 (in which
event no Determination of the Members will be required), or (iv) to acquire such
site and  construct  such tower or towers for its own account or for the account
of any Affiliate of CSD.

         Anything in this Section or elsewhere in this Agreement to the contrary
notwithstanding,  ATS shall  advance  all funds to finance the  construction  of
communication  towers on the  initial  sixty (60) sites  acquired by the Company
upon its formation and the consummation of the transactions  contemplated by the
Acquisition Agreement in the form of Additional Capital Contributions and not in
the form of Member Loans or loans from one or more Unaffiliated Persons.

         3.3 Other Required  Funds. In the event that in the judgment of Members
representing a Determination of the Members additional funds are required by the
Company for any Company  purpose  which ATS is not obligated to fund pursuant to
the provisions of Section 3.2, the Members may elect,  upon a  Determination  of
the  Members,  but  subject in any event to the  provisions  of Section  7.2, to
obtain  such funds as a loan from any  Unaffiliated  Person  upon such terms and
conditions as the Members, by Determination of the Members, deem appropriate or,
in the  alternative,  the Members may elect, by Unanimous  Determination  of the
Members, to cause each Member to advance, as an Additional Capital Contribution,
its proportionate  share, based upon the Company Interests of all Members, or in
such other  proportion  as shall be fixed by a  Unanimous  Determination  of the
Members, of the total amount so required,

                                       -4-

<PAGE>


it  being  expressly  understood  that  no  Member  may be  required  to make an
Additional  Capital  Contribution  and no such Additional  Capital  Contribution
shall be made by any  Member,  unless  the same  shall  have  been  approved  by
Unanimous  Determination of the Members. CSD shall also have the right, pursuant
to  the  provisions  of  Section  3.2,  to  obtain  funds  as a  loan  from  any
Unaffiliated Person.

         In the event that additional funds are required for any Company purpose
which ATS is not  obligated to fund  pursuant to the  provisions of Section 3.2,
and  provided  that the Members  are unable to obtain,  or agree upon terms with
respect to, a loan from an  Unaffiliated  Person of such funds or if the Members
fail to agree, by Unanimous Determination of the Members, to advance the same as
Additional Capital Contributions, then any Member may, by written notice to each
Member,  propose that the same be advanced as loans from the  Members.  Any such
loan (each a "Member  Loan") shall bear  interest at an annual rate of interest,
compounded quarterly, equal to the Prime Rate plus two (2) percentage points and
shall be payable,  on a priority  basis,  out of Cash Flow and at liquidation of
the Company,  all as further  provided in Article 6. Any such Member Loan may be
advanced by all of the Members, pro rata in proportion to Company Interests, or,
in the event that any Member  declines to participate in any such Member Loan by
advancing  its share  thereof  within ten (10) days  after  receipt of a written
proposal  with respect to such loan,  by any Member or Members who  determine to
participate  therein,  it being  expressly  understood and agreed that no Member
shall have any obligation to participate in any Member Loan so proposed.  To the
extent that any Member  declines to  participate in any Member Loan so proposed,
that Member's  portion of the Member Loan so proposed  shall be allocated to the
Member or Members who elect to participate  therein in such  proportions as such
other Members may agree or, in the absence of such agreement, pro rata among all
Members  electing  to  participate  therein in  proportion  to their  respective
Company Interests.

         3.4 Capital Accounts.  A separate capital account (a "Capital Account")
shall be  established  and  maintained  for each Member in  accordance  with the
following provisions:

                  (a) To each Member's  Capital  Account there shall be credited
         the  amount  of cash and fair  market  value of the  property  actually
         contributed to the Company  pursuant to Sections 3.1, 3.2 and 3.3, such
         Member's  allocable  share of  Profit  and the  amount  of any  Company
         liabilities  that are assumed by such Member or that are secured by any
         Company property distributed to such Member.

                  (b) To each  Member's  Capital  Account there shall be debited
         the amount of cash and the fair market  value of any  Company  property
         distributed to such Member pursuant to any provision of this Agreement,
         such Member's allocable share of Loss and the amount of any liabilities
         of such  Member  that are assumed by the Company or that are secured by
         any property contributed by such Member to the Company.

                  (c)  The  provisions  of  this   Agreement   relating  to  the
         maintenance  of Capital  Accounts  are  intended to comply with Section
         1.704-1(b)(2)(iv) of the Treasury Regulations, and shall be interpreted
         and applied in a manner consistent with such Treasury Regulations.

                  (d) A Member shall not be entitled to withdraw any part of its
         Capital Account or to receive any distributions from the Company except
         as  provided  in Article 6; nor shall a Member be  entitled to make any
         loan or Capital  Contribution  to the Company  other than as  expressly
         provided  herein.  No loan  made to the  Company  by any  Member  shall
         constitute a Capital Contribution to the Company for any purpose.

                  (e) Except as required  by the Act,  no Member  shall have any
         liability  for the  return  of the  Capital  Contribution  of any other
         Member. A Member who has more than one interest in the

                                       -5-


<PAGE>



         Company  shall have a single  Capital  Account  that  reflects all such
         interests,  regardless of the class of interest owned and regardless of
         the time or manner in which the interests were acquired.

         3.5  Transfer  of  Capital  Accounts.   The  original  Capital  Account
established  for each  substituted  Member  shall be in the same  amount  as the
Capital Account of the Member which such  substituted  Member  succeeds,  at the
time such substituted Member is admitted to the Company.  The Capital Account of
any Member  whose  interest in the Company  shall be  increased  by means of the
transfer to it of all or part of the  interest in the Company of another  Member
shall be appropriately  adjusted to reflect such transfer. Any reference in this
Agreement to a Capital  Contribution  of or  distribution to a then Member shall
include a Capital  Contribution  or  distribution  previously  made by or to any
prior Member on account of the Company interest of such then Member.

         3.6 Deficit Capital  Accounts.  No Member with a deficit in his Capital
Account  shall be obligated  to restore  such deficit  balance or make a Capital
Contribution to the Company solely by reason of such deficit.

         3.7 Additional Equity. If the Members, by a Unanimous  Determination of
the Members,  conclude  that an additional  equity  investment in the Company is
necessary and desirable,  the Board shall determine the value of the outstanding
equity of the Company,  and based on such value,  shall  determine the price for
the additional  equity to be issued.  Each Member shall be entitled to subscribe
for such Member's  proportionate  share (based on its Company  Interest) of such
additional equity. If any Member shall subscribe for less than its proportionate
share, the excess shall then be offered to the  fully-subscribing  Members.  Any
portion not subscribed for by Members may then be offered to Persons who are not
Members.  If it is necessary to offer such equity to Persons who are not Members
on terms more favorable than the terms  originally  accepted by Members,  all of
the equity originally subscribed for by the Members shall be issued on the terms
the equity was offered to Persons who are not Members. The Board shall establish
procedures  for each  equity  issuance  that will assure that each Member has an
equitable and fair opportunity to subscribe for such equity,  exercise its right
to preserve  its  relative  Company  Interest  and  exercise  its right of first
refusal before any equity is offered to Persons who are not Members.

         3.8 Additional  Members.  No additional  Members may be admitted to the
Company without a Unanimous Determination of the Members, other than pursuant to
the provisions of Section 3.6 or Article 8.


                                    ARTICLE 4

                    BOOKS; ACCOUNTING; TAX ELECTIONS; REPORTS

         4.1 Fiscal Year.  The fiscal year of the Company  shall be the calendar
year (the "Year"), or such other year as shall be required under the Code.

         4.2  Method of  Accounting  and  Taxation.  The books of account of the
Company  (other  than books  required  to maintain  Capital  Accounts)  shall be
maintained on an accrual basis and otherwise in accordance  with GAAP. It is the
intention of the Members that the Company be taxed as a partnership  for Federal
income tax purposes and the Members shall take all action and make all elections
necessary to ensure that the Company is so taxed.

         4.3      Books and Records and Inspection.


                                       -6-


<PAGE>



                  (a) Books of Account and Records.  Proper and complete records
         and books of  account of the  Company's  business,  including  all such
         transactions  and other matters as are usually entered into records and
         books of account  maintained  by Persons  engaged in businesses of like
         character  or as are  required by law,  shall be kept by the Company at
         the  Company's  principal  office and place of business.  To the extent
         required by law, the Company shall also keep,  at its principal  office
         and place of business, all records, required by the Act.

                  (b)  Inspection.  Each  Member  shall have the  right,  at all
         reasonable  times and upon  reasonable  notice  during  usual  business
         hours, to audit,  examine and make copies of or extracts from the books
         of account of the Company for any  purpose  reasonably  related to such
         Member's  interest  as a  member  of the  Company.  Such  right  may be
         exercised through any agent or employee of such Member designated by it
         or by a certified public accountant designated by such Member. A Member
         shall  bear all  expenses  incurred  in any  examination  made for such
         Member's account.

         4.4 Reports.

                  (a) Monthly Reports.  The Company shall prepare and deliver or
         cause to be delivered to each Member, within thirty (30) days after the
         end of each calendar month:

                           (i)  a  management-prepared   balance  sheet,  income
                  statement and cash flow statement for the Company with respect
                  to such  calendar  month just  ending  and the fiscal  year to
                  date;

                           (ii) a  management-prepared  statement  of income for
                  the Company comparing the actual results for the month and the
                  fiscal year to date with budgeted  amounts as set forth in the
                  most recently approved Annual Budget; and

                           (iii)  (A)  a   narrative   report   concerning   the
                  operations of the Company,  including the matters set forth in
                  the profit and loss and cash flow  statements and the variance
                  report described above; and (B) as of the end of each calendar
                  quarter, the balance of each Member's Capital Account.

                  The  monthly  financial   statements  and  other  reports  and
         information  shall be certified as accurate in all material respects by
         an officer of the Company to his best knowledge and belief.

                  (b) Annual  Report.  The Company  shall prepare and deliver or
         cause to be delivered to each Member, within eighty (80) days after the
         end of each fiscal year,  an annual  report for the Company  containing
         the following:

                           (i) a balance  sheet for the Company as of the end of
                  such Year,  and  statements  of income,  Members'  capital and
                  statement of cash flows for the Company for such year;

                           (ii)  a general description of the activities of the 
                  Company during the period covered by the report; and

                           (iii)  a  report  of  any  transactions  between  the
                  Company and any Member or  Affiliates  with  respect  thereto,
                  including  fees or  compensation  paid by the  Company and the
                  services  performed by the Members or any  Affiliates  thereof
                  for such fees or compensation.

                  The  annual  financial  statements  of the  Company  shall  be
         audited  (which audit shall be conducted in  accordance  with GAAP) and
         certified by the Accountants.

                                       -7-


<PAGE>

                  (c) Other  Information.  Forthwith upon request of any Member,
         the Company shall, at the cost and expense of the Company,  furnish (or
         cause to be furnished) to each Member such  information  bearing on the
         financial  condition  and  operations of the Company as any such Member
         may from time to time  reasonably  request.  Upon  obtaining  knowledge
         thereof, the Company shall furnish to each Member prompt written notice
         of any events or occurrences not otherwise provided for in this Section
         4.4 which may materially and adversely affect the Company.

         4.5 Filing of Returns and Other Writings; Tax Matters Member.

                  (a) The Tax Matters  Member  shall cause the  preparation  and
         timely  filing of all Company  tax returns and shall,  on behalf of the
         Company,  timely file all other writings  required by any  governmental
         authority having jurisdiction to require such filing.

                  (b) Unless and until the  Members  shall  otherwise  direct by
         Determination  of the  Members,  ATS will  serve  as the  "tax  matters
         partner"  (as such term is defined in Section  6231(a)(7)  of the Code,
         the "Tax Matters Member") for purposes of Section 6231 of the Code.

                  (c) The Company shall, to the fullest extent permitted by law,
         reimburse  and  indemnify  the Tax  Matters  Member for all  reasonable
         expenses,  including  reasonable  legal and  accounting  fees,  claims,
         liabilities,  losses and damages  incurred by the Tax Matters Member in
         connection with any administrative or judicial  proceeding with respect
         to the tax liability of the Members.

                  (d)  The   provisions   of  this  Section  shall  survive  the
         termination of the Company or the termination of any Member's  interest
         in the  Company and shall  remain  binding on the Members for as long a
         period of time as is necessary  to resolve  with the  Internal  Revenue
         Service any and all matters  regarding the Federal  income  taxation of
         the Company or the Members.

                  (e) The  Members  agree  to file all tax  returns  in a manner
         consistent with all Company tax returns.


                                    ARTICLE 5

                                   ALLOCATIONS

         5.1 Allocations of Profit and Loss.

                  (a) Profit. After giving effect to the special allocations set
         forth in Section 5.6 and taking into account any  curative  allocations
         in Section  5.7,  Profit of the  Company  for each fiscal year or other
         period shall be allocated among the Members as follows:

                  (i)      first,  to the Members in the amounts and proportions
                           necessary  to  reverse,  on a  cumulative  basis  and
                           without  duplication,  all allocations of Loss to the
                           Members pursuant to Section 5.1(b)(iii) over the life
                           of the Company;

                  (ii)     second, to the Members in the amounts and proportions
                           necessary  to  reverse,  on a  cumulative  basis  and
                           without  duplication,  all allocations of Loss to the
                           Members pursuant to Section  5.1(b)(ii) over the life
                           of the Company; and

                  (iii)    the balance, to the Members in accordance with their
                           Company Interests.

                                       -8-


<PAGE>


                  (b) Loss.  After giving effect to the special  allocations set
         forth in Section 5.6 and taking into account any  curative  allocations
         in Section  5.7,  Loss of the  Company  for each  fiscal  year or other
         period shall be allocated among the Members as follows:

                  (i)      first,  to the Members in the amounts and proportions
                           necessary  to  reverse,  on a  cumulative  basis  and
                           without duplication, all allocations of Profit to the
                           Members pursuant to Section 5.1(a)(iii) over the life
                           of the Company;

                  (ii)     second,  to the  Members  with  positive  balances in
                           their  Capital  Accounts,  in  accordance  with their
                           Company  Interests until the Capital  Accounts of all
                           Members are reduced to zero; and

                  (iii)    the balance, to the Members in accordance with their
                           Company Interests.

         5.2 Section 754 Election.  Upon the request of any Member,  the Company
shall elect, pursuant to Section 754 of the Code, to adjust the basis of Company
property as permitted  and  provided in Sections  734 and 743 of the Code.  Such
election shall be effective  solely for Federal (and, if  applicable,  state and
local)  income tax purposes and shall not result in any  adjustment  to the Book
Value of any  Company  asset or to the  Members'  Capital  Accounts  (except  as
provided  in  Treasury  Regulations  Section  1.704-1(b)(2)(iv)(m))  or  in  the
determination  or allocation of Profit or Loss for purposes  other than such tax
purposes.

         5.3 Allocations for Tax and Book Purposes. Except as otherwise provided
herein,  any  allocation  to a Member  for a fiscal  year or other  period  of a
portion  of the  Profit or Loss,  or of a  specially  allocated  item,  shall be
determined to be an allocation to that Member of the same  proportionate part of
each item of income,  gain, loss, deduction or credit, as the case may be, as is
earned, realized or available by or to the Company for Federal tax purposes.

         5.4 Certain  Accounting  Matters.  For purposes of determining  Profit,
Loss or any other items allocable to any period, Profit, Loss and any such other
items shall be determined on a daily,  monthly or other basis,  as determined by
the Managers using any permissible  method under Section 706 of the Code and the
Treasury Regulations promulgated thereunder.

         5.5 Tax  Allocations;  Code Section 704(c).  In accordance with Section
704(c) of the Code and the Treasury Regulations promulgated thereunder,  income,
gain,  loss,  and  deduction  with  respect to any property  contributed  to the
capital of the Company shall, solely for income tax purposes, be allocated among
the Members so as to take account of any variation between the adjusted basis of
such property to the Company for Federal income tax purposes and its fair market
value at the  time of  contribution.  In the  event  that the Book  Value of any
Company asset is  subsequently  adjusted in accordance with the last sentence of
the definition of Book Value, any allocation of income, gain, loss and deduction
with  respect to such  asset  shall  thereafter  take  account of any  variation
between the adjusted tax basis of the asset to the Company and its Book Value in
the same manner as under Section 704(c) of the Code and any Treasury Regulations
promulgated  thereunder.  Any  elections  or other  decisions  relating  to such
allocations  shall be made by the Managers in a manner that reasonably  reflects
the  purpose  and  intention  of this  Agreement.  Allocations  pursuant to this
section are solely for purposes of Federal, state, and local taxes and shall not
affect,  or in any way be taken into account in computing,  any Members' Capital
Account or share of Profit,  Loss or distributions  pursuant to any provision of
this Agreement.


                                       -9-

<PAGE>


         5.6 Compliance With Section 704(b).

                  (a)  Qualified  Income  Offset.  If  any  Member  unexpectedly
         receives  an  adjustment,   allocation  or  distribution  described  in
         Regulations Section 1.704-1(b)(2)(ii)(d)(4), (5) or (6) that causes the
         Member to have, or increases the amount of a Member's, deficit Adjusted
         Capital  Account  Balance,  items of  Company  income and gain shall be
         specially  allocated to such Member in accordance with the requirements
         of  Regulations  Section  1.704-1(b)(2)(ii)(d).  This Section 5.6(a) is
         intended to comply with the qualified  income offset  provision of such
         Regulations Section, and shall be interpreted consistently therewith.

                  (b) Gross Income  Allocation.  If any Member  would  otherwise
         have a deficit  Adjusted  Capital Account Balance as of the last day of
         any  fiscal  year or  other  period,  items of  income  and gain of the
         Company  shall be  specially  allocated  to such  Member (in the manner
         specified in Section  5.6(a)  hereof) so as to  eliminate  such deficit
         Adjusted Capital Account Balance as quickly as possible,  provided that
         an allocation pursuant to this Section 5.6(b) shall be made only if and
         to the extent that such Member  would have a deficit  Adjusted  Capital
         Account  Balance  after  all  other  allocations  provided  for in this
         Agreement have been tentatively made as if this Section 5.6(b) were not
         in this Agreement.

                  (c)  Limitation on Loss  Allocations.  No item of deduction or
         loss of the Company  shall be allocated to a Member if such  allocation
         would cause or increase a deficit Adjusted Capital Account Balance.  In
         the  event  that some but not all of the  Members  would  have  deficit
         Adjusted  Capital Account Balances as a result of an allocation of Loss
         pursuant to this  Article 5, the  limitation  set forth in this Section
         5.6(c)  shall be applied on a Member by Member  basis so as to allocate
         the maximum  permissible Loss to each Member under Regulations  Section
         1.704-1(b)(2)(ii)(d).

                  (d)  Minimum  Gain  Chargeback.   Notwithstanding   any  other
         provision of this Article 5, if there is a net decrease in "partnership
         minimum gain" or "partner nonrecourse debt minimum gain" of the Company
         (as such terms are defined in Regulations  Section  1.704-2) during any
         fiscal year or other  period,  prior to any other  allocation  pursuant
         hereto,  items of Company income and gain for such fiscal year or other
         period (and,  if  necessary,  for  subsequent  fiscal years or periods)
         shall be  specially  allocated  among the  Members in  accordance  with
         Regulations  Sections  1.704-2(f) and (i). The items to be so allocated
         shall  be   determined   in  accordance   with   Regulations   Sections
         1.704-2(f)(6) and (j)(2).

                  (e) Allocation of "Partner Nonrecourse  Deductions".  "Partner
         nonrecourse  deductions"  as defined in  Section  1.704-2(i)(1)  of the
         Treasury  Regulations  for any  fiscal  year or other  period  shall be
         specially  allocated to the Members who bear the economic  risk of loss
         for the "partner  nonrecourse debt" to which such "partner  nonrecourse
         deductions" are attributable,  as provided in Section  1.704-2(i)(1) of
         the Treasury Regulations.

                  (f)  Allocation  of  "Nonrecourse  Deductions".   "Nonrecourse
         deductions"  as such term is defined in  Section  1.704-2(b)(1)  of the
         Treasury  Regulations  for any  fiscal  year or other  period  shall be
         allocated to the Members in accordance  with their  respective  Company
         Interests.

         5.7 Curative Allocations. The allocations set forth in Section 5.6 (the
"Regulatory  Allocations")  are intended to comply with certain  requirements of
Sections  1.704-1(b)  and 1.704-2 of the Treasury  Regulations.  The  Regulatory
Allocations may not be consistent with the manner in which the Members intend to
divide Company Profits, Losses and similar items.  Accordingly,  Profits, Losses
and other items will be reallocated  among the Members (in the same year, and to
the extent necessary, in subsequent years) in a

                                      -10-


<PAGE>



manner consistent with Treasury  Regulation section 1.704-1(b) and 1.704-2 so as
to  prevent  the  Regulatory  Allocations  from  distorting  the manner in which
Company  Profits,  Losses and other items are intended to be allocated among the
Members pursuant to this Article 5.


                                    ARTICLE 6

                                  DISTRIBUTIONS

         6.1 Distributions  Other Than Proceeds of Any Liquidating  Transaction.
Subject to Section 18-607 of the Act, the Company shall  distribute Cash Flow to
each Member, on a monthly basis, in the following manner:

                  (a)  first,  up to  thirty  percent  (30%) of Cash Flow to the
         Members in payment of any Member Loans in proportion to the outstanding
         balances of such Member  Loans held by each Member  (amounts so paid to
         be  applied  first  to  interest  accrued  and  unpaid,   and  then  to
         outstanding principal); and

                  (b) the  balance,  to the  Members  in  accordance  with their
         respective Company Interests at the time of distribution.

         6.2 Proceeds of Any Liquidating Transaction. Upon the occurrence of any
transaction  (a   "Liquidating   Transaction")   involving  the  sale  or  other
disposition  of all or  substantially  all of the  assets  of the  Company,  all
proceeds  resulting  therefrom  (and all cash  available  from any other  source
during the period of winding up of the Company) shall be applied as follows:

                  (a) first,  to the payment of, or of the making of  reasonable
         provisions  for payment of, any debts or  liabilities of the Company to
         creditors (other than Members as holders of Member Loans);

                  (b) second,  to the Members in payment of any Member  Loans in
         proportion  to the  outstanding  balances of such Member  Loans held by
         each Member (with  amounts so paid to be applied  first to interest and
         then to principal); and,

                  (c) the balance,  to the Members in  proportion  to and to the
         extent of the positive  balances of the Capital Accounts of the Members
         (after  reflecting  in such Capital  Accounts all  adjustments  thereto
         necessitated by (i) all other Company  transactions for the Fiscal Year
         of the Company in which such Liquidating Transaction occurs prior to or
         simultaneously   with  such  Liquidating   Transaction  and  (ii)  such
         Liquidating Transaction).

         It is understood  and agreed that all payments under this Section shall
be made as soon as  reasonably  practicable  and in any  event by the end of the
Fiscal Year in which such Liquidating  Transaction  occurs or, if later,  within
ninety (90) days after the date of such Liquidating Transaction.

         6.3 Liquidation of Member's  Interest.  Upon  liquidation of a Member's
interest  in  the  Company,   other  than  in  connection   with  a  Liquidating
Transaction,   liquidating  distributions  to  such  Member  shall  be  made  in
accordance with Section 1.704-1(b)(2)(ii)(b)(2) of the Treasury Regulations.



                                      -11-


<PAGE>

                                    ARTICLE 7

                        RIGHTS AND OBLIGATIONS OF MEMBERS

         7.1 Limited  Liability.  Except as  otherwise  provided by the Act, the
debts,  obligations and liabilities of the Company, whether arising in contract,
tort or otherwise, shall be solely the debts, obligations and liabilities of the
Company,  and the Members shall not be obligated  personally  for any such debt,
obligation or liability of the Company solely by reason of being a member of the
Company.  The Members  shall not be  required to lend any funds to the  Company.
Each of the  Members  shall  only be liable to make  payment  of its  respective
contributions as and when due hereunder and other payments as expressly provided
in this Agreement.  If and to the extent a Member's  contribution shall be fully
paid, such Member shall not, except as required by the express provisions of the
Act regarding  repayment of sums wrongfully  distributed to Members, be required
to make any further contributions.

         To the extent that,  at law or in equity,  any Affiliate of a Member or
any manager, officer, stockholder, employee, agent or representative of a Member
or such Affiliate has duties (including fiduciary duties) and liabilities to the
Company or to the  Members,  no such Person shall be liable to the Company or to
any Member for its good faith  reliance  on the  provisions  of this  Agreement,
including  without  limitation  Section 7.4, which, in the event of any conflict
with any such duties, shall govern.

         7.2 Management and Control,  Etc. Management and control of the Company
shall be vested in the  Members  and all  material  decisions  with  respect  to
management, control, operation and disposition of the business and assets of the
Company shall, except as otherwise  specifically provided in this Agreement,  be
made by Determination of the Members.

         There  shall be  established  by the Members a Board of Managers of the
Company (the "Board"), composed of five managers,  designated as hereinafter set
forth.  The  Board  shall  meet on a regular  basis,  not less  frequently  than
quarterly, to review the operations of the Company, and any Determination of the
Members,  required  or  permitted  to be  taken  under  this  Agreement  may  be
accomplished  by action of a majority  of the  managers  (or, in the case of any
Unanimous  Determination  of the  Members,  by action  of all of the  managers),
either  at a  meeting  of the Board or by  written  consent.  The Board may also
appoint a Chairman,  President,  one or more Vice Presidents,  a Treasurer and a
Secretary and such other officers as the Board shall deem  appropriate,  each of
which  officers  may,  to the  extent  provided  by the  Board,  have the powers
attendant to a similar officer of a Delaware corporation.

         Each of ATS and CSD  shall  have  the  right,  from  time to  time,  to
designate  three  managers and two  managers,  respectively,  to the Board.  Any
manager may be removed,  with or without cause, and a successor appointed at any
time by the Member or Members  responsible  for  designation of such manager and
any Member  entitled to do so may also designate one or more alternates to serve
in the place of any manager  designated  by such Member who may  temporarily  be
unavailable to act with respect to Company matters. In the event of any transfer
by any Member or by any of its  successors  and assigns,  of any interest in the
Company in accordance  with Article 8, (a) the assigning  Member shall be deemed
to have assigned its right to designate a manager or managers under this Section
to its  assignee in the event that such  assignment  is of the  assignor's  then
entire  interest as a Member of the  Company  and the  assignee is admitted as a
Member in accordance with Article 8, and (b) the assigning Member shall have the
right to transfer  its right to  designate a manager,  by express  statement  of
exercise of such right in the  applicable  instrument of  assignment;  provided,
however,  that the assignee of such right is, or will be upon completion of such
transfer, the holder of not less than ten percent (10%) of the Company Interests
and the assignee is admitted as a Member in accordance with Article 8.


                                      -12-


<PAGE>

         The Company shall pay the reasonable out-of-pocket expenses,  including
travel and lodging, of each manager (including any manager-alternate)  acting in
connection with the business of the Company.

         From time to time upon request, the Company will furnish to each Member
such information  regarding the business,  properties,  financial  condition and
results  of  operation  of the  Company  in such  detail  as may  reasonably  be
requested;   and  the  Company   covenants   and  agrees  that  any   authorized
representative of any such Member shall have the right,  reasonably exercisable,
to visit and inspect any of the properties of the Company during normal business
hours and in a manner so as to not interfere with the operations and business of
the  Company,  to examine and to discuss  their  affairs,  finances and accounts
with, and be advised as to the same by, their  officers,  all at such reasonable
times and intervals as such Member may reasonably request.

         Notwithstanding anything to the contrary in this Agreement, the Company
shall  not  take  any of the  following  actions  without  first  obtaining  the
Unanimous  Determination  of the  Members,  which  approval  shall  be  given or
withheld at the absolute discretion of the Members:

         (a)      sell or exchange all or substantially all of the assets of the
                  Company;

         (b)      issue  any  additional   Company   Interests,   or  admit  the
                  transferee  of a Member's  Company  Interest  as a  substitute
                  Member under Section 8.2 hereof;

         (c)      dissolve  the  Company,  or  continue  the  Company  after its
                  dissolution due to the withdrawal of a Member (or if there are
                  none, of any Member) as provided in Section 9.1 hereof;

         (d)      merge or consolidate the Company with another  business entity
                  under the Act,  unless the Members of the Company  immediately
                  prior to such  merger  or  consolidation  own not less  than a
                  majority of the voting  interests in the survivor,  whether or
                  not the Company, of such merger or consolidation;

         (e)      file any voluntary petitions for the Company under Title XI of
                  the United States Code, the Bankruptcy  Act, or consent to the
                  filing of any involuntary petition for the Company thereunder,
                  or seek the protection of any other federal, state, bankruptcy
                  or insolvency law or debtor relief statutes;

         (f)      borrow any funds other than in the ordinary course of business
                  or if, as a result thereof,  the aggregate principal amount of
                  indebtedness   of  the  Company   outstanding   would   exceed
                  seventy-five  percent  (75%) of the fair  market  value of the
                  assets of the Company; or

         (g)      establish any  extraordinary  reserves  (i.e.,  reserves other
                  than those in the  ordinary  course of  business  which  shall
                  include,  without  limitation,  those with  respect to capital
                  expenditures).

         7.3 Evidence of Authority, Etc. Any Person dealing with the Company may
rely on a certificate signed by any Member:

                  (a) as to who are the Members or managers, officers, employees
         or agents of the Company;

                  (b) as to the existence or  nonexistence  of any fact or facts
         which  constitute  conditions  precedent  to acts by the Members or any
         such manager, officer, employee or agent or in any other manner germane
         to the affairs of the Company;

                                      -13-


<PAGE>


                  (c)  as to  who is  authorized  to  execute  and  deliver  any
         instrument or document on behalf of the Company;

                  (d) as to the  authenticity  of any copy of this Agreement and
         amendments hereto;

                  (e) as to any act or  failure  to act by the  Company or as to
         any other matter  whatsoever  involving the Company,  any Member or any
         manager, officer, employee or agent; or

                  (f) as to the authority of any Member or any manager, officer,
         employee or agent or other Person to act on behalf of the Company.

         7.4  Other  Business,  Etc.  Except  as  hereinafter  set forth in this
Section (or in any separate  agreement between the Company and any such Person),
any Member and any Affiliate of a Member may engage in or possess an interest in
other  business  ventures  (unconnected  with the  Company)  of  every  kind and
description,  independently  or with others and none of the Company or the other
Members shall have any rights in or to such  independent  ventures or the income
or profits therefrom by virtue of this Agreement.

         To the extent that,  at law or in equity,  any Affiliate of a Member or
any director,  officer,  stockholder,  employee,  agent or  representative  of a
Member or such Affiliate has duties (including fiduciary duties) and liabilities
to the Company or to the Members,  no such Person shall be liable to the Company
or to any  Member  for  its  good  faith  reliance  on the  provisions  of  this
Agreement.  The provisions of this Agreement,  to the extent that they expand or
restrict the duties and liabilities of any such Person otherwise existing at law
or in equity,  are  agreed by the  Members  to  replace  such  other  duties and
liabilities of such Person.

         Anything in this Section or elsewhere in this Agreement to the contrary
notwithstanding,  it is the intent and understanding of the Members, and each of
ATS and CSD covenant and agree as follows:

         (a)  except  as  set  forth  in the  Exceptions  Schedule,  all  future
acquisition  of  sites,  whether  in  fee  ownership,  pursuant  to a  leasehold
interest,  or otherwise,  for the construction of communication  towers, and all
future  construction of  communication  towers,  by CSD or any of its Affiliates
will be offered to the Company and neither CSD nor any of its  Affiliates  will,
directly or indirectly (as a stockholder, member, partner, trustee or otherwise)
own,  construct,  operate,  manage,  finance or otherwise  be involved  with any
communication towers, unless ATS shall have failed to approve the acquisition of
site pursuant to the provisions of Section 3.2; and

         (b)  the Company will enter into a Management Agreement with ATS.

         7.5 Indemnification. No Member, manager or officer of the Company shall
be liable to any other  Member or any other  Person who has an  interest  in the
Company for any loss,  damage or claim incurred by reason of any act or omission
performed or omitted by such Member,  manager of officer in good faith on behalf
of the Company and in a manner reasonably believed to be within the scope of the
authority conferred on such Member, manager or officer by this Agreement, except
that a Member,  manager of officer of the  Company  shall be liable for any such
loss,  damage or claim incurred by reason of such Person's  gross  negligence or
willful  misconduct.  To the full extent  permitted by applicable law, a Member,
manager or officer of the Company shall be entitled to indemnification  from the
Company for any loss, damage or claim by reason of any act or omission performed
or omitted by such Person in good faith on behalf of the Company and in a manner
reasonably  believed to be within the scope of the authority  conferred on it by
this Agreement,  except that no Member,  manager or officer shall be entitled to
be indemnified in respect of any loss,  damage or claim incurred by it by reason
of the Person's gross negligence or willful misconduct with respect to such

                                      -14-


<PAGE>

acts or omissions;  provided,  however,  that any  indemnity  under this Section
shall be provided out of and to the extent of Company assets only, and no Member
shall have personal liability on account thereof.

         7.6 Agreements with  Affiliates.  The Company may enter into agreements
with any Member or  Affiliate  of a Member for the  acquisition  of  property or
rendition of services,  provided that the  acquisition of such property from, or
the rendition of such services by, such Member or Affiliate has previously  been
approved by a Unanimous  Determination of the Members. The affected Member shall
in each case  disclose in advance the existence of any such  affiliation  to the
other Members.

         7.7 Payment of Expenses; Compensation. Promptly following the Effective
Date, or as the Members may, by Determination  of the Members,  otherwise agree,
the  Company  shall  reimburse  each Member for such  reasonable  fees and costs
incurred and reasonable out-of-pocket  expenditures relating to the formation of
the Company and the preparation of the associated documentation as may have been
approved by a  Determination  of the Members.  Except as expressly  set forth in
this Agreement,  or as otherwise approved by a Determination of the Members,  no
Member or manager  shall  receive any  compensation  for  performing  its duties
hereunder.


                                    ARTICLE 8

                          TRANSFERS OF INTERESTS, ETC.

         8.1 Consent Required.  Except as otherwise  contemplated by Section 8.2
or as permitted by the  succeeding  paragraphs of this Section,  no Member shall
suffer  or  permit  any  transfer,  whether  direct or  indirect,  voluntary  or
involuntary,  of all or any portion of such Member's Company Interest without an
approval given by  Determination  of the Members  representing a majority of the
Company Interests held by the  non-transferring  Members,  which approval may be
given or withheld  by the  non-transferring  Members in their sole and  absolute
discretion. Notwithstanding the foregoing, a Member may, without the approval of
the other Members, transfer an economic Company Interest pursuant to a Permitted
Transfer,  in which event the assignee  shall be entitled to the share of Profit
or Loss and any distribution or return of Capital  Contributions  and any credit
or other item  properly  allocable  to the Company  Interest to be  transferred.
However,  unless and until any such transfer of an economic  interest shall have
been  approved  by a  Determination  of the Members  representing  a majority in
interest of the Company Interests held by the non- transferring  Members,  which
approval may be given or withheld by the non-transferring  Members in their sole
and absolute discretion,  the assignee shall not be entitled to be admitted as a
Member of the Company and the assignor shall continue as a Member of the Company
for all other  purposes  of this  Agreement.  In  addition,  any  assignee of an
economic Company Interest pursuant to the foregoing provisions of this paragraph
who has not been admitted as a Member may further assign such interest  provided
that such  assignment  is  carried  out in  accordance  with and  subject to the
provisions of this Article,  in all respects as if or with the same effect as if
such assignee were a Member.

         The  foregoing  provisions  of this  Section  shall  not be  deemed  to
restrict  any  transfer  of an  interest  in ATS or  CSD,  except  as  otherwise
specifically provided.

         Anything in this  Section 8.1 or  elsewhere  in this  Agreement  to the
contrary  notwithstanding,  ATS may,  without the approval of the other Members,
pledge  all or any  portion  of its  interests  to one or more  banks  or  other
financial institutions pursuant to any bona fide borrowing arrangements,  which,
upon  foreclosure,  shall succeed to the interest of ATS and may become a Member
without the consent of any other Member being required.


                                      -15-


<PAGE>

         8.2 Right of First Refusal.

         (a) If any Member (the "Offeror") desires, at any time, to transfer all
or any part of its Company  Interest  other than as  permitted by Section 8.1 or
other  than  pursuant  to a  Permitted  Transfer,  it shall  submit to the other
Members  (the  "Offerees")  a true  copy of an offer to  purchase  such  Company
Interest (the "Offer"), which shall in any event disclose the price and terms of
such  proposed  sale and the name and  address of the  proposed  purchaser.  The
Offerees  shall have the absolute  right to purchase such Company  Interest upon
the terms and conditions as set forth in the Offer.  Each Offeree shall,  within
thirty (30) days of such receipt,  specify in a notice to the Offeror whether or
not it desires to accept the Offer,  and upon acceptance of the Offer,  the same
shall  constitute a binding  agreement of purchase and sale between the parties.
Failure to send such  notification  within thirty (30) days shall  constitute an
election to reject the Offer. The Offeror may sell its Company Interest,  to the
extent the Offer was not so accepted,  to the proposed  purchaser whose name and
address were disclosed in the Offer, but only upon the same terms and conditions
set forth therein and within sixty (60) days after the expiration of said thirty
(30) day  period  during  which the  Offeree  had the right to accept the Offer;
otherwise,  any such  sale  shall  be null  and  void and of no force or  effect
whatever.

         (b) In the event that two or more of the Offerees  desire to accept any
Offer,  and if such  Offerees  are unable to agree  among  themselves  as to the
apportionment  thereof,  each  accepting  Offeree shall be entitled to acquire a
portion of the offered  Company  Interest based upon the ratio which the Company
Interest of each such accepting Offeree bears to the aggregate Company Interests
of all such accepting Offerees.

         (c) No Offeree  shall have any  obligation,  by reason of acceptance or
rejection  of any Offer  pursuant  to this  Section  to  compensate  any  broker
retained by any Offeror or third party with respect to any proposed  transfer of
an Company Interest.

         (d) Each Member shall use reasonable  efforts to keep the other Members
apprised with respect to any  inquiries or proposals  regarding the sale of such
Member's Company Interest.

         8.3 Buy/Sell.  A Member (for  purposes of this Section the  "Initiating
Member")  may (a) in the  event  that  there  shall be a  transfer  of  majority
ownership or control of CSD to any Person in  competition  with the Company,  at
any time  within  ninety (90) days after  receipt of notice of such  transfer of
ownership or control (in which event only another  Member may be the  Initiating
Member),  or (b) in the event an Act of  Bankruptcy  occurs  with  respect  to a
Member (in which event only another  Member may be the  Initiating  Member),  by
notice to the other  Members (for  purposes of this  Section,  "Other  Members")
require  the Other  Members  to elect  either to sell  their  respective  entire
Company  Interests and any Member Loans to the Initiating  Member or to purchase
the entire interest of the Initiating Member in the Company and any Member Loans
for a price computed by reference to an amount stated in the Initiating Member's
notice (the "Stated  Amount").  The  purchase  price shall equal the amount such
Member  would  receive  as a  distribution  from the  Company in respect of such
Member's Company Interest and in repayment of any Member Loans if (i) all of the
assets of the Company  were sold on the closing  date under this Section for the
Stated Amount,  (ii) the Company were dissolved in accordance  with Section 9.1,
and (iii) the proceeds of sale were applied in  accordance  with Section 9.3, it
being  understood that the applicable  purchase price for such Company  Interest
and Member Loans shall be determined  by the affected  Members if they can agree
upon the same within ten (10) days prior to the closing date and  otherwise  the
same  shall  be  determined  on such  date by the  Accountants  (with  any  such
determination  by the  Accountants to be binding upon all Members in the absence
of  manifest  error).  Each of the Other  Members  shall have  thirty (30) after
receipt of the Initiating Member's notice within which to elect whether he shall
buy the  Initiating  Member's  Company  Interest  and  Member  Loans or sell his
Company  Interest and Member Loans based upon the Stated  Amount.  If any of the
Other

                                      -16-


<PAGE>


Members fails to make an election within such period, he shall be deemed to have
elected to sell his Company Interest and Member Loans to the Initiating Member.

         The closing pursuant to this Section shall occur on the sixtieth (60th)
day after the election  (or deemed  election) to purchase or sell has been made,
or at such earlier date as the purchasing Member(s) may specify on ten (10) days
prior written notice; provided,  however, that each of the following (unless and
except to the extent waived by the purchasing Member(s)) shall be a condition of
the  obligation of the  purchasing  Member(s) to proceed with any such purchase:
(a) that the Company shall have continued to be operated in accordance with this
Agreement  in all  material  respects  through  the date of  sale,  (b) that the
purchasing  Member(s)  shall have  obtained  all  lender  and other  third-party
consents,  if any,  required in  connection  with such sale,  and (c) that there
shall be no suit, action or proceeding  pending on the date of sale before or by
any court or  governmental  body  seeking to restrain or  prohibit,  or material
damages or other relief in connection with, the sale; provided further, however,
the Company  shall agree to  indemnify  and hold  harmless  the  seller(s)  with
respect to all Company obligations,  whether arising before or after the date of
such sale (other  than any such  obligations  resulting  from any breach of this
Agreement by a selling Member).

         The Company Interest and any applicable Member Loans shall be purchased
and the  purchase  price shall be paid at a closing to be held at the  principal
business office of the Company.  At the closing the Company  Interest and Member
Loans shall be duly conveyed, free of all liens and encumbrances on the same and
the  purchase  price  shall be paid by wire  transfer of  immediately  available
Federal funds. At the election of the purchasing Member(s), the Company Interest
and the Member Loans to be purchased  may be acquired in the name of one or more
nominees  (whether  or not any such  nominee  is an  Affiliate  of a  purchasing
Member),  provided,  however,  that any such  nominee is  designated  by written
notice given at least five (5) days prior to the date of Closing.

         Anything in this Section or elsewhere in this Agreement to the contrary
notwithstanding,  (a) in the event one, but not all, of the Other  Members shall
elect to purchase the  Initiating  Member's  Company  Interest and Member Loans,
such election shall take precedence over any election to sell Company  Interests
and Member Loans to the  Initiating  Member and any such elections to sell shall
be deemed to be an election to sell such Company  Interests  and Member Loans to
the Other Members who have elected to purchase the Company  Interests and Member
Loans of the Initiating  Member,  (b), such purchasing  Other Members shall have
the right but not the  obligation  to purchase the Company  Interests and Member
Loans of the non-  purchasing  Other  Members and,  after the closing under this
Section,  the purchasing  Other Members and, in the event the  purchasing  Other
Members do not elect to purchase all of the Company  Interests  and member Loans
of the  nonpurchasing  Other  Members,  the  non-purchasing  Other Members shall
continue the Company in accordance with this  Agreement,  and (c) if one or more
of the Other Members elect to purchase the Company  Interest and Member Loans of
the  Initiating   Member  and  are  unable  to  agree  among  themselves  as  to
apportionment  thereof, each Other Member shall be entitled to acquire a portion
of the  Initiating  Member's  Company  Interest  and Member Loans based upon the
ratio  which  the  Company  Interest  of each  such  Other  Member  bears to the
aggregate Company Interests of all of the purchasing Other Members.  In no event
shall the purchasing  Other Members be entitled to purchase less than all of the
Company Interest and Member Loans of any nonpurchasing  Other Member unless such
nonpurchasing  Other Member so agree in writing,  it being understood,  however,
that the purchasing  Other Members may elect to purchase  Company  Interests and
Member Loans from some but not all of the nonpurchasing Other Members.

         In the event of the  failure of a selling  Member to  proceed  with the
sale of its Company  Interest and Member Loans at the closing as herein provided
(other than any failure by reason of the non-occurrence of any condition to such
sale herein provided),  the same shall constitute a default by such Member under
this Agreement and any purchasing Member shall be entitled to pursue any and all
remedies available under this Agreement or at law or equity,  including specific
performance. In the event of the failure of a purchasing

                                      -17-


<PAGE>



Member (or its nominee) to proceed  with the purchase of a Company  Interest and
Member Loans at the closing as herein  provided  (other than because a condition
to such Member's obligation to make such purchase has not been satisfied),  each
selling  Member may elect,  by written  notice  given to the  purchasing  Member
within thirty (30) days after the date of such failure,  either (a) to cause the
purchasing  Member to sell its Company Interest and Member Loans to such selling
Member (or its nominee) at a purchase  price for such Company  Interest which is
ten percent  (10%) less than the price which the  defaulting  purchasing  Member
would have received if it had initially agreed to sell its Company Interest at a
price  determined by reference to the Stated Amount or (b) to pursue any and all
remedies  available  under  this  Agreement  or at law or in  equity,  including
specific  performance.  If a selling  Member elects within the aforesaid  thirty
(30) day period to cause such defaulting  purchasing  Member to sell the Company
Interest and Member Loans,  the closing  shall occur on the sixtieth  (60th) day
after the  election to purchase  has been given,  or at such earlier date as the
electing  Member may specify on ten (10) days prior  written  notice;  provided,
however,  that it shall be a condition of the electing  Member's  obligation  to
proceed,  in the case of the electing  Member as buyer,  that the conditions set
forth in the second  paragraph of this Section are satisfied and, in the case of
the former  purchasing  Member as seller,  that the  conditions set forth in the
immediately preceding paragraph are satisfied.

         8.4 CSD  Right/Obligation of Exchange.  In conjunction with the initial
public offering of the common stock of ATS (the "ATS IPO") (including an initial
public  offering  which  takes the form of a merger  with an  existing  publicly
traded  company),  CSD shall  have the  right,  and ATS shall  have the right to
require CSD, to exchange all but not less than all of CSD's Company Interest for
shares of common stock of ATS (of the class which is the subject of the ATS IPO,
the "ATS  Common  Stock")  on the terms and  subject to the  conditions  of this
Section. ATS agrees that it shall give prompt written notice (which notice shall
include the estimate  initial  public  offering  price or the range  thereof and
whether  ATS has elected to require CSD to  exchange  its Company  Interest  for
shares of ATS Common Stock pursuant to the provisions of this Section) to CSD of
its  determination  to proceed with the ATS IPO. In the event ATS shall not have
elected to require CSD to exchange its Company Interest for shares of ATS Common
Stock  pursuant to the  provisions  of this  Section,  CSD shall have the right,
exercisable  within  twenty  (20) days of  receipt of such  notice,  to elect to
exchange  all but not less than all of its  Company  Interest  for shares of ATS
Common  Stock.  Failure  of CSD to  deliver a timely  notice of  election  to so
exchange its Company  Interest shall be deemed to be an election not to exchange
its Company Interest.

         In the event CSD elects to exchange its Company  Interest,  ATS and CSD
shall  attempt in good faith to agree upon a fair market value for CSD's Company
Interest.  In the event ATS and CSD are unable to agree  upon such value  within
ten (10) days, CSD shall have the right, but not the obligation,  to submit such
matter to appraisal in accordance  with the  provisions of this Section.  In the
event ATS and CSD agree on such fair  market  value or CSD elects to submit such
matter to  appraisal,  ATS and CSD shall be obligated to effect the exchange and
shall be conclusively  bound to effect such exchange based on the results of the
appraisal.  In the event CSD shall have  elected  not to  submit,  or shall have
failed within such ten (10)-day period to have submitted, such matter to binding
appraisal in accordance with the provisions of the preceding sentence,  it shall
not have any further right to exchange its Company Interest for shares of common
stock  of ATS,  except  as  otherwise  provided  in the last  paragraph  of this
Section.  Any appraisal of the fair market value of the Company  Interest of CSD
shall be made by the managing  underwriter  of the ATS IPO (or, in the event the
ATS IPO shall be pursuant to a merger, by an investment banker  knowledgeable in
the communications tower business mutually reasonably  acceptable to ATS and CSD
or, in the absence of such agreement, by Credit Suisse First Boston). The number
of shares of ATS Common Stock to be issued in exchange for the Company  Interest
of ATS shall be  determined  by dividing the fair market value of CSD's  Company
Interest (as agreed upon by ATS and CSD or as  determined  by  appraisal) by the
amount paid by the underwriters to ATS (or the selling stockholders in the event
ATS does not sell any shares pursuant

                                      -18-


<PAGE>



thereto) in the ATS IPO (or the closing  price of the common  stock of the party
to the merger agreement on the date the merger agreement is executed).

         To the  extent  permitted  by the  Code,  ATS will  use its  reasonable
business  efforts to effect the exchange of CSD's Company Interest for shares of
ATS Common Stock pursuant to a tax-free reorganization under the Code so long as
doing so does not subject ATS or its subsidiaries or stockholders to any risk of
tax in connection with the exchange or any related transactions.

         CSD  hereby  appoints  ATS as its  agent  and  attorney-in-fact,  which
appointment  is coupled with an interest,  and is  irrevocable,  for purposes of
executing  and  delivering  all  such  agreements,   instruments  and  documents
necessary or desirable in order to  effectuate  the  provisions of this Section,
including  without  limitation  the  right  and power to  transfer  the  Company
Interest of CSD to ATS in accordance with the provisions of this Section, all in
the event CSD has elected to proceed with the  exchange of its Company  Interest
for shares of ATS Common Stock pursuant to the provisions of this Section.

         In the event CSD shall have  elected or been deemed to have elected not
to exchange its Company  Interest for shares of ATS Common Stock pursuant to the
ATS IPO and ATS subsequently determines not to proceed with such ATS IPO or such
ATS IPO is withdrawn or is otherwise not consummated,  CSD shall have the rights
set forth in this Section upon any  subsequent  determination  of ATS to proceed
with the ATS IPO.

         8.5 Obligations and Rights of Transferees and Assignees. Any Person who
acquires in any manner  whatsoever  the  interest  (or any part  thereof) of any
Member in the  Company,  irrespective  of whether  such Person has  accepted and
assumed in writing the terms and provisions of this Agreement,  shall be deemed,
by acceptance of the benefit of the acquisition  thereof,  to have requested and
agreed to be subject to and bound by all of the  obligations of this  Agreement,
with the same force and effect as any  predecessor  in Company  Interest,  shall
have only such rights as are provided in this Agreement,  and,  without limiting
the  generality  of the  foregoing,  such Person shall not have the value of his
interest ascertained or receive the value of such interest, or, in lieu thereof,
profits  attributable  to any right in the Company,  except as set forth in this
Agreement.

         8.6  Non-Recognition  of Certain Transfers.  Notwithstanding  any other
provision  of  this  Agreement,  any  transfer,  sale,  alienation,  assignment,
encumbrance or other  disposition in  contravention  of any of the provisions of
this Article shall be void and ineffective, and shall not bind, or be recognized
by, the Company.

         8.7  Required  Amendments;  Continuation.  If  and to  the  extent  any
transfer of a Company  Interest is permitted  hereunder  and the  transferee  is
admitted as a Member,  this Agreement shall be amended to reflect such admission
or transfer  and the  elimination  of the  transferor  Member and (if and to the
extent then required by the Act) a certificate  of amendment to the  Certificate
reflecting such admission and elimination  shall be filed in accordance with the
Act. The admission of any  substitute  Member  pursuant to this Article shall be
deemed effective immediately prior to the transfer of a Company Interest to such
substitute  Member.  If the transferor Member has transferred all of its Company
Interest pursuant to this Article,  then,  immediately  following such transfer,
the transferor Member shall cease to be a member of the Company.

         8.8  Resignation.  No Member  shall  have the right to resign  from the
Company without the prior written consent of the other Members.


                                      -19-

<PAGE>

                                    ARTICLE 9

                                   TERMINATION

         9.1 Events of Dissolution.

         (a) In accordance  with Section 18-801 of the Act, the Company shall be
dissolved and the affairs of the Company wound up upon the  occurrence of any of
the following events:

                  (i) a Unanimous  Determination  of the Members to dissolve the
         Company; or

                  (ii) death, retirement,  resignation, expulsion, bankruptcy or
         dissolution  of a Member or the  occurrence  of any other event  which,
         pursuant to the Act,  terminates the continued existence of a Member in
         the Company,  unless, if there is more than one Member  remaining,  the
         business  of the  Company  is  continued  by  the  consent  of all  the
         remaining  Members  within ninety (90) days following the occurrence of
         any such event; or

                  (iii)  the  sale,  transfer  or  other  disposition  of all or
         substantially all of the business and assets of the Company; or

                  (iv)  in any event, at 12:00 midnight on December 31, 2047.

         (b)  Dissolution  of the Company shall be effective on the day on which
the event  occurs  giving rise to the  dissolution,  but the  Company  shall not
terminate  until the  assets of the  Company  shall  have  been  distributed  as
provided  herein and a certificate of cancellation of the Company has been filed
with the Secretary of State of the State of Delaware.

         (c) If as a result of the occurrence of any event  described in Section
9.1(a)(ii), a Member is the only remaining member of the Company, to the fullest
extent  permitted by the Act, such Member shall have the right to admit a Person
as a new member of the Company,  effective as of the date of the  occurrence  of
the  event set forth in  Section  9.1(a)  (ii),  on terms  satisfactory  to such
remaining Member. Upon such admission, the Members are hereby authorized to, and
shall, continue the business of the Company without dissolution.

         9.2  Application of Assets.  In the event of  dissolution,  the Company
shall  conduct  only such  activities  as are  necessary  to wind up its affairs
(including  the sale of the  business  and  assets of the  Company in an orderly
manner),  and the assets of the Company  shall be applied in the manner,  and in
the order of priority, set forth in Section 6.2.

         9.3  Distributions  in  Liquidation.  No Member shall have the right to
request or require  the  distribution  of the assets of the Company in kind upon
the liquidation of the Company.


                                   ARTICLE 10

                                  MISCELLANEOUS

         10.1  Notices.  All  notices  and  other  communications  which  by any
provision of this Agreement are required or permitted to be given shall be given
in  writing  and shall be (a)  mailed by  first-class  or  express  mail,  or by
recognized  courier  service,  postage  prepaid,  (b) sent by  telex,  telegram,
telecopy or other form

                                      -20-


<PAGE>



of rapid transmission,  confirmed by mailing (by first class or express mail, or
by  recognized  courier  service,   postage  prepaid)  written  confirmation  at
substantially  the  same  time as such  rapid  transmission,  or (c)  personally
delivered to the receiving party (which if other than an individual  shall be an
officer or other responsible party of the receiving party). All such notices and
communications  shall be mailed,  sent or  delivered  as set forth on the Member
Schedule  (including any copies shown thereon) or to such other address  (within
the United  States of  America) as any party may have  designated  for itself by
written  notice to the  others in the  manner  herein  prescribed,  except  that
notices of change of address shall be effective only upon receipt.  All notices,
demands,  and requests to be sent  hereunder  shall be deemed to have been given
for all purposes of this Agreement upon the date of receipt or refusal.

         10.2  Specific  Performance;  Other  Rights  and  Remedies.  Each party
recognizes and agrees that in the event the other party should refuse to perform
any of its  obligations  under  this  Agreement,  the  remedy  at law  would  be
inadequate and agrees that for breach of such  provisions,  each party shall, in
addition to such other remedies as may be available to it at law or in equity or
as provided in Article 7, be  entitled to  injunctive  relief and to enforce its
rights  by an  action  for  specific  performance  to the  extent  permitted  by
Applicable  Law.  Each party hereby waives any  requirement  for security or the
posting  of any  bond or other  surety  in  connection  with  any  temporary  or
permanent  award of injunctive,  mandatory or other equitable  relief.  Noth ing
herein  contained shall be construed as prohibiting each party from pursuing any
other remedies available to it pursuant to the provisions of, and subject to the
limitations contained in, this Agreement for such breach or threatened breach.

         10.3 Severability.  If any term or provision of this Agreement shall be
held or deemed  to be, or shall in fact be,  invalid,  inoperative,  illegal  or
unenforceable  as  applied  to  any  particular  case  in  any  jurisdiction  or
jurisdictions,  or in  all  jurisdictions  or  in  all  cases,  because  of  the
conflicting of any provision with any  constitution or statute or rule of public
policy or for any other reason,  such circumstance  shall not have the effect of
rendering the provision or provisions in question invalid, inoperative,  illegal
or unenforceable in any other  jurisdiction or in any other case or circumstance
or of rendering any other  provision or  provisions  herein  contained  invalid,
inoperative,  illegal or  unenforceable to the extent that such other provisions
are not themselves actually in conflict with such constitution,  statute or rule
of public policy, but this Agreement shall be reformed and construed in any such
jurisdiction or case as if such invalid,  inoperative,  illegal or unenforceable
provision had never been contained herein and such provision reformed so that it
would be valid,  operative and  enforceable to the maximum  extent  permitted in
such jurisdiction or in such case.  Notwithstanding the foregoing,  in the event
of any such  determination  the  effect  of which is to  affect  materially  and
adversely any Member,  the Members shall  negotiate in good faith to modify this
Agreement  so as to effect  the  original  intent of the  Members  as closely as
possible to the fullest  extent  permitted by  Applicable  Law in an  acceptable
manner to the end that such intent is fulfilled to the maximum extent possible.

         10.4   Counterparts.   This   Agreement  may  be  executed  in  several
counterparts,  each of  which  shall be  deemed  an  original,  but all of which
together shall constitute one and the same  instrument,  binding upon all of the
Members. In pleading or proving any provision of this Agreement, it shall not be
necessary to produce more than one of such counterparts.

         10.5 Section Headings. The headings contained in this Agreement are for
reference  purposes  only  and  shall  not in any  way  affect  the  meaning  or
interpretation of this Agreement.

         10.6 Title to Company  Property.  All  property  owned by the  Company,
whether real or personal, tangible or intangible, shall be deemed to be owned by
the Company as an entity, and no Member, individually,  shall have any ownership
of such property. The Company may hold any of its assets in its own

                                      -21-


<PAGE>



name  or in the  name  of  its  nominee,  which  nominee  may  be  one  or  more
individuals, partnerships, trusts or other entities.

         10.7 Governing Law. In the event of a conflict between any provision of
this Agreement and any non-mandatory provision of the Act, the provision of this
Agreement  shall  control and take  precedence.  The  validity,  interpretation,
construction  and  performance  of this  Agreement  shall be  governed  by,  and
construed  in  accordance  with,  the  applicable  laws of the United  States of
America and the laws of the State of Delaware  applicable to contracts  made and
performed in such State and, in any event,  without  giving effect to any choice
or  conflict  of laws  provision  or rule that would  cause the  application  of
domestic substantive laws of any other jurisdiction.  Anything in this Agreement
to the contrary notwithstanding, in the event of any dispute between the parties
which  results in a Legal  Action,  the  prevailing  party  shall be entitled to
receive from the  non-prevailing  party  reimbursement for reasonable legal fees
and expenses incurred by such prevailing party in such Legal Action.

         10.8 Further Acts. Each party agrees that at any time, and from time to
time, before and after the consummation of the transactions contemplated by this
Agreement, it will do all such things and execute and deliver all such documents
and  other  assurances,  as any  other  party or its  counsel  reasonably  deems
necessary or desirable  in order to carry out the terms and  conditions  of this
Agreement  and  the  transactions  contemplated  hereby  or  to  facilitate  the
enjoyment of any of the rights created hereby or to be created hereunder.

         10.9  Entire  Agreement.  This  Agreement  (together  with  the  Member
Schedule)  constitutes  the entire  agreement of the parties and  supersedes all
prior agreements and undertakings,  both written and oral,  between the parties,
with respect to the subject matter hereof.

         10.10 Assignment. This Agreement shall not be assignable by any Member,
except as otherwise  provided in Section 8.1, and any such  assignment  shall be
null and void,  except that it shall inure to the benefit of and by binding upon
any  successor  to any party by  operation  of law,  including by way of merger,
consolidation  or sale of all or  substantially  all of its assets,  and ATS may
assign  its  rights  and  remedies  hereunder  to any  bank or  other  financial
institution which has loaned funds or otherwise extended credit to it.

         10.11  Parties in Interest.  This  Agreement  shall be binding upon and
inure  solely to the  benefit of each  party,  and  nothing  in this  Agreement,
express or implied,  is  intended to or shall  confer upon any Person any right,
benefit or remedy of any nature whatsoever under or by reason of this Agreement,
except as otherwise provided in Section 10.10.

         10.12  Mutual  Drafting.  This  Agreement  is the  result  of the joint
efforts of CSD and ATS, and each provision hereof has been subject to the mutual
consultation,  negotiation  and  agreement  of the parties and there shall be no
construction  against  either  party based on any  presumption  of that  party's
involvement in the drafting thereof.

         10.13 Amendments;  Waivers.. This Agreement may be amended from time to
time with  written  approval of all  Members.  At any time or from time to time,
except to the extent not permitted by Applicable Law, the Members may extend the
time for the  performance of any of the obligations or other acts of any Member,
and waive  compliance  by the other  with any of the  agreements,  covenants  or
conditions contained herein. Any such extension or waiver shall be valid only if
set forth in an instrument in writing signed by all Members.


                                      -22-


<PAGE>

         10.14  Schedule.   The  Member   Schedule   attached  hereto  shall  be
incorporated  into and shall be deemed a part of this  Agreement.  If the Member
Schedule  shall  not be  attached  hereto  at the  time  of  execution  of  this
Agreement,  or if it shall be incomplete,  it may be later attached or completed
in  accordance  with the  provisions of this  Agreement and the Member  Schedule
shall, as later attached or completed, for all purposes be deemed a part of this
Agreement  as if  attached  hereto  or  completed  at the time of the  execution
hereof.  Without  limiting the generality of the foregoing,  the Member Schedule
shall be amended  from time to time to reflect the  admission  of Members or the
transfer of interests of Members and the Company  shall,  from time to time,  so
cause the Member Schedule to be amended and shall promptly notify the Members in
writing of any change in the Member Schedule.

         IN WITNESS WHEREOF, the parties hereto have executed and delivered this
Agreement under seal as of the day and year first above written.

                                      American Tower Systems, Inc.


                                      By:_____________________________
                                          Name:
                                          Title:

                                      Communication Systems Development, Inc.


                                      By:_____________________________
                                          Name:
                                          Title:



                                      -23-


<PAGE>

                                                                      APPENDIX A

         "Accountant(s)"  shall mean such firm of independent  certified  public
accountants  as may be  engaged  from  time  to  time  by  the  Company,  upon a
Determination  of the  Members,  for  purposes  of  reviewing  or  auditing  the
financial  statements  of the Company and  performing  such other  duties as are
imposed upon the Accountants by the express provisions of this Agreement.

         "Act"  shall  have  the  meaning  set  forth  in the  recitals  to this
Agreement.

         "Act of Bankruptcy" shall mean, when used with reference to any Person,
any of the following events or occurrences:

                  (a) its  admitting in writing its  inability,  or being unable
         under  applicable  law,  or its  failing  generally,  to pay its  debts
         generally as they become due, or

                  (b) its filing a petition, answer or consent seeking relief as
         a debtor or otherwise  commencing a voluntary case under the Bankruptcy
         Code as from time to time in effect, or its authorizing, by appropriate
         proceedings of its board of directors or other governing body, any such
         petition, answer, consent or commencement of such a voluntary case; or

                  (c) the filing  against it or all or any  substantial  part of
         its property of a petition  commencing  an  involuntary  case under the
         Bankruptcy  Code which shall  remain  undismissed  for a period of more
         than  thirty (30) days or which is  consented  to by such Person or any
         order or decree  approving  relief  adverse to such  Person  thereunder
         shall remain unstayed and in effect for more than forty five (45) days;
         or

                  (d) its  commencement  of  proceedings  or filing a  petition,
         answer or consent  seeking relief as a debtor under any Applicable Law,
         other than the  Bankruptcy  Code, of any  jurisdiction  relating to the
         liquidation  or  reorganization  of debtors or to the  modification  or
         alteration  of  the  rights  of  creditors,  or  its  consenting  to or
         acquiescing  in such  relief  or its  admitting  or  acquiescing  in or
         failing promptly and in any event within thirty (30) days of the filing
         thereof, in an appropriate manner, to deny the material  allegations of
         any  petition  seeking  such  relief,  any  such  involuntary  petition
         remaining undismissed for more than thirty (30) days or an order in any
         involuntary proceeding adverse to such Person remaining unstayed and in
         effect for more than forty-five (45) days; or

                  (e) the entry of an order or decree  (whether or not final) by
         a court of  competent  jurisdiction  (i)  finding it to be  bankrupt or
         insolvent,  (ii) ordering or approving its liquidation,  dissolution or
         winding up, or  reorganization or any modification or alteration of the
         rights of its creditors,  or any  composition or readjustment of debts,
         (iii)  assuming   custody  of,  or  appointing  a  receiver,   trustee,
         sequestrator,  conservator,  assignee,  custodian,  liquidator,  fiscal
         agent or similar official for, such Person or all or a substantial part
         of its property and any such order or decree  shall  continue  unstayed
         and in effect for a period of forty-five (45) days; or

                  (f) its  convening a meeting of  creditors  for the purpose of
         consummating an out-of-court  arrangement,  or making an assignment for
         the benefit of, or entering  into a  composition,  extension or similar
         arrangement  with,  its  creditors  in respect of all or a  substantial
         portion of its debt; or

                  (g)  its  seeking  or  consenting  to or  acquiescing  in  the
         appointment  of  a  receiver,   trustee,   sequestrator,   conservator,
         liquidator,  fiscal agent or other custodian of itself or of all or any
         substantial part of its property; or

                  (h)  its winding-up, liquidation or dissolution; or

                                       A-1

<PAGE>



                  (i) its  authorization,  by appropriate action of its board of
         directors or other governing body, of any of the foregoing.

         "Additional Capital  Contribution" shall mean any Capital  Contribution
made in accordance with Section 3.2 or 3.3.

         "Adjusted  Capital  Account  Balance"  shall mean,  with respect to any
Member,  the balance in such Member's Capital Account after giving effect to the
following adjustments:

                  (a) credits to such Capital  Account of such Member's share of
         "partnership minimum gain" or a "partner nonrecourse debt minimum gain"
         or any amount which such Member would be required to restore under this
         Agreement or otherwise; and

                  (b) debits to such Capital  Account of the items  described in
         Section   1.704-1(b)(2)(ii)(d)(4),   (5)  and   (6)  of  the   Treasury
         Regulations.

         The  foregoing  definition  of  Adjusted  Capital  Account  Balance  is
intended to comply with the  provisions of Section  1.704-1(b)(2)(ii)(d)  of the
Treasury Regulations and shall be interpreted consistently therewith.

         "Affiliate" shall mean, with respect to any Person,  (i) in the case of
any such Person which is a Company,  any Member in such Company,  (ii) any other
Person which is a Parent, a Subsidiary, or a Subsidiary of a Parent with respect
to such  Person or to one or more of the Persons  referred  to in the  preceding
clause  (i),  (iii) any other  Person who is an  officer,  director,  trustee or
employee  of,  or  Member  in,  such  Person or any  Person  referred  to in the
preceding clauses (i) and (ii), and (iv) any other Person who is a member of the
Immediate  Family of such Person or of any Person  referred to in the  preceding
clauses (i) through (iii);  provided,  however, that such term shall not include
within its meaning the Company itself or a Subsidiary of the Company.

         "Agreement" shall mean this Agreement of Limited Liability Company,  as
it may be  amended,  restated  or  supplemented  from  time to  time  as  herein
provided.

         "Annual   Budget"  shall  mean  the  detailed   annual  budget  of  all
anticipated   revenues  and  other  cash   receipts  and  expenses  and  capital
expenditures   associated  with  ownership  and  operation  of  the  Company  as
heretofore furnished to each of the Members, as amended and updated from time to
time as provided herein.

         "Applicable Law" shall mean any Law of any Authority,  whether domestic
or  foreign,  including  without  limitation  the FCA and all  federal and state
securities and  Environmental  Laws, to which a Person is subject or by which it
or any of its business or operations is subject or any of its property or assets
is bound.

         "ATS" shall have the meaning given to such term in the Preamble.

         "ATS Common  Stock"  shall have the meaning  given such term in Section
8.4.

         "ATS IPO" shall have the meaning given such term in Section 8.4.

         "Authority"   shall  mean  any   governmental   or   quasi-governmental
authority, whether administrative, executive, judicial, legislative or other, or
any  combination  thereof,  including  without  limitation  any federal,  state,
territorial,   county,   municipal  or  other   government  or  governmental  or
quasi-governmental agency,

                                       A-2

<PAGE>



arbitrator,  authority,  board, body, branch, bureau, central bank or comparable
agency or Entity, commission,  corporation, court, department,  instrumentality,
master, mediator,  panel, referee, system or other political unit or subdivision
or other Entity of any of the foregoing, whether domestic or foreign.

         "Bankruptcy Code" shall mean 11 U.S.C. ss. 101 et seq., as from time to
time in effect,  and any  successor  law,  and any  reference  to any  statutory
provision  shall  be  deemed  to  be a  reference  to  any  successor  statutory
provision.

         "Board" shall have the meaning given such term in Section 7.2.

         "Book Gain" or "Book Loss"  shall mean the gain or loss  recognized  by
the  Company  for book  purposes  in any  Fiscal  Year by  reason of any sale or
disposition with respect to any of the assets of the Company.  Such Book Gain or
Book Loss shall be computed by reference  to the Book Value of such  property or
assets as of the date of such sale or  disposition,  rather than by reference to
the tax basis of such  property  or assets as of such  date,  and each and every
reference  herein to  "gain" or "loss"  shall be deemed to refer to Book Gain or
Book Loss,  rather than to tax gain or tax loss,  unless the context  manifestly
otherwise requires.

         "Book Value" of an asset shall mean,  as of any  particular  date,  the
value at which the asset is properly  reflected  on the books and records of the
Company as of such date in  accordance  with  Section  1.704-1(b)(2)(iv)  of the
Treasury  Regulations.  The initial  Book Value of each asset shall be its cost,
unless such asset was contributed to the Company by a Member,  in which case the
initial Book Value shall be the amount  stated as the fair market value for such
asset on the Member  Schedule  (or,  if no such value is stated,  as  reasonably
established  by a  Determination  of the Member),  and, in each case,  such Book
Value shall thereafter be adjusted for  Depreciation  with respect to such asset
rather than for the cost  recovery  deductions  to which the Company is entitled
for Federal  income tax purposes  with respect  thereto.  The Book Values of all
Company assets shall be adjusted to equal their  respective  fair market values,
as  determined  by the  Board  in its  reasonably  business  judgment  as of the
following  times:  (a) the acquisition of an additional  Company Interest by any
new or existing Member in exchange for more than a de minimis Additional Capital
Contribution;  (b) the distribution by the Company to a Member of more than a de
minimis  amount of  Company  assets,  including  money,  if, as a result of such
distribution, such Member's Company Interest is reduced; and (c) the termination
of the Company for Federal income tax purposes pursuant to Section  708(b)(1)(B)
of the Code.

         "Capital Account" shall have the meaning set forth in Section 3.4.

         "Capital  Contributions"  shall mean the total amount of cash and other
property  contributed to the Company by the Members,  whether as Initial Capital
Contributions or Additional Capital Contributions.

         "Cash Flow" shall mean, for any period, the amount,  computed on a cash
basis, of:

                  (i)      the sum of:

                           (A)      all gross receipts, all investment income of
                                    the  Company,  and all  cash  received  from
                                    other sources, and

                            (B)     any  amounts   released   from  reserves  as
                                    provided in the Annual Budget, reduced by:

                  (ii)     the sum of:


                                       A-3

<PAGE>



                           (A)      disbursements  of the Company for  operating
                                    expenses,  principal payments on debt (other
                                    than Member Loans),  interest (other than on
                                    Member Loans) and other expenses ,

                           (B)      capital expenditures  reasonably  determined
                                    to be necessary or appropriate by the Board,

                           (C)      any  increase in reserves as provided in the
                                    Annual Budget, and

                           (D)      an  additional  amount  necessary  to ensure
                                    that the Company has funds necessary to meet
                                    the cash requirements of the Company for the
                                    period  prior  to  the  date  on  which  the
                                    Company  is  next   anticipated  to  receive
                                    income as set forth in the applicable Annual
                                    Budget or such other date thereafter (to the
                                    extent  no  such  date is  specified  in the
                                    Annual Budget) as determined by the Board.

         "Certificate"  shall  mean the  Certificate  of  Formation  of  Limited
Liability  Company of the  Company  as  provided  for  pursuant  to the Act,  as
originally  filed  with the  office  of the  Secretary  of State of the State of
Delaware, as amended and restated from time to time as herein provided.

         "Code"  shall mean the Internal  Revenue Code of 1986,  as amended from
time to time,  and any  subsequent  Federal law of similar  import,  and, to the
extent applicable, any Treasury Regulations promulgated thereunder.

         "Company" shall mean the limited liability  company hereby  established
in  accordance  with this  Agreement  by the  parties  hereto,  as such  limited
liability company may from time to time be constituted.

         "Company  Interest"  shall  mean,  with  respect  to each  Member,  its
interest  in the  Company as set forth in the Member  Schedule,  subject in each
instance to adjustment  from time to time pursuant to the applicable  provisions
of this Agreement.

         "Control" shall mean,  when used with respect to any Person,  the power
to direct the  management  and policies of such Person,  directly or indirectly,
whether as an officer or manager, through the ownership of voting securities, by
contract or otherwise,  and the terms  "controlling" and "controlled" shall have
meanings correlative to the foregoing.

         "Controlling  Interest"  shall mean,  with  respect to any Person,  the
power to control such Person.

         "CSD" shall have the meaning given such term in the Preamble.

         "Depreciation"  shall mean,  for each fiscal year or other  period,  an
amount equal to the depreciation,  amortization or other cost recovery deduction
allowable  with  respect  to an asset for such year or other  period;  provided,
however,  that if the Book Value of an asset differs from its adjusted basis for
Federal  income tax purposes at the  beginning of any such year or other period,
Depreciation  shall be an amount  that bears the same  relationship  to the Book
Value of such asset as the  depreciation,  amortization,  or other cost recovery
deduction  computed  for  tax  purposes  with  respect  to  such  asset  for the
applicable period bears to the adjusted tax basis of such asset at the beginning
of such period,  or if such asset has a zero  adjusted  tax basis,  Depreciation
shall  be an  amount  determined  under  any  reasonable  method  selected  by a
Determination of the Members.

                                       A-4

<PAGE>



         "Determination  of the  Members"  shall  mean the  affirmative  vote or
approval of Members holding at least fifty and one-tenth  percent (50.1%) of the
Company  Interests (or such greater or lesser percentage of Company Interests as
may otherwise in this Agreement be expressly provided). "Unanimous Determination
of the Members" shall mean the  affirmative  vote or approval of Members holding
one hundred percent (100%) of the Company Interests.

         "Effective Date" shall have the meaning set forth in Section 2.5.

         "Entity"  shall  mean any  general  partnership,  limited  partnership,
corporation,  joint venture,  trust, limited liability company,  business trust,
cooperative or association.

         "Exceptions  Schedule" shall mean the schedule attached hereto and made
a part  hereof  which sets  forth,  as of the date  hereof,  existing  sites and
communication towers owned, leased,  operated or managed by CSD or any Affiliate
thereof  and  which  are  exceptions  to the  provisions  of  Section  7.4.  The
Exceptions  Schedule may be amended,  from time to time,  with the prior written
approval of ATS in its sole and absolute discretion.

         "Fiscal  year"  shall mean the fiscal  year of the Company and shall be
the same as its taxable year,  which shall be the calendar year unless otherwise
required by the Code.  Each fiscal  year shall  commence on the day  immediately
following the last day of the immediately preceding fiscal year.

         "GAAP"  shall  mean  means,  except  to the  extent  that  a  deviation
therefrom is expressly required by this Agreement,  such principles applied on a
consistent  basis,  (i) as set forth in  Opinions of the  Accounting  Principles
Board of the American Institute of Certified Public Accountants ("AICPA") and/or
in statements of the Financial Accounting Standards Board that are applicable in
the  circumstances as of the date in question,  (ii) when not inconsistent  with
such  opinions  and  statements,  as set forth in other AICPA  publications  and
guidelines  and/or  (iii)  that  otherwise  arise by custom  for the  particular
industry, all as the same shall exist on the date of this Agreement.

         "Immediate  Family" shall mean, with respect to any Person, his spouse,
parents,  brothers,  sisters,  children  (natural  or  adopted),   stepchildren,
grandchildren,  grandparents, parents-in-law,  brothers-in-law,  sisters-in-law,
nephews and nieces.

         "Initial Capital Contribution" shall mean any Capital Contribution made
in accordance with Section 3.1.

         "Initial  Investment"  shall mean the aggregate  amount  proposed to be
invested in the project or site,  including for all tower and other improvements
during the initial phase of construction.

         "Initiating Member" shall have the meaning set forth in Section 8.3.

         "Law" shall mean any (a) administrative, judicial, legislative or other
action,  code,  consent  decree,  constitution,  decree,  directive,  enactment,
finding, guideline, law, injunction, interpretation, judgment, order, ordinance,
policy statement,  proclamation,  promulgation,  regulation,  requirement, rule,
rule of law, rule of public policy,  settlement  agreement,  statute, or writ of
any  Authority,  domestic  or  foreign;  (b) the common  law,  or other legal or
quasi-legal  precedent;  or (c)  arbitrator's,  mediator's  or referee's  award,
decision,  finding or recommendation;  including, in each such case or instance,
any interpretation,  directive,  guideline or request, whether or not having the
force of law including, in all cases, without limitation any particular section,
part or provision thereof.

                                       A-5

<PAGE>



         "Liquidating  Transaction"  shall have the meaning set forth in Section
6.2.

         "Management  Agreement" shall mean the agreement,  dated as of the date
hereof, between ATS and the Company, relating to the marketing and management by
ATS on behalf of the Company of all communication towers now or hereafter owned,
leased, operated or managed by the Company.

         "Member" shall mean each of the  undersigned,  together with any Person
who becomes a  substituted  or additional  Member as herein  provided and who is
listed as a member of the  Company in the books and records of the  Company,  in
such Person's capacity as a member of the Company.

         "Member Loan" shall have the meaning set forth in Section 3.2.

         "Member  Schedule"  shall have the meaning set forth in Section 3.1, as
amended from time to time pursuant to the provisions of this Agreement.

         "Objection Notice" shall have the meaning set forth in Section 3.2.

         "Offer" shall have the meaning set forth in Section 8.2.

         "Offeror" shall have the meaning set forth in Section 8.2.

         "Other Member" shall have the meaning set forth in Section 8.3.

         "Parent" shall mean, with respect to any Person,  any Person which owns
directly,  or indirectly through one or more Subsidiaries,  twenty percent (20%)
or more of the voting or  beneficial  interest in, or otherwise has the right or
power  (whether by contract,  through  ownership of  securities or otherwise) to
control, such Person.

         "Permitted Transfer" shall mean any sale, transfer, assignment or other
disposition of a Company Interest by any Member to a Permitted Transferee.

         "Permitted Transferee" shall mean any of the following:

         (a)      any member of the Immediate Family or the estate, executors or
                  legal representatives of any  transferor,

         (b)      the trustees of an inter vivos or testamentary trust for the
                  benefit of any transferor or any member of his Immediate 
                  Family, or

         (c)      any Affiliate of the transferor effecting such transactions.

         "Person" shall mean any individual or Entity, and the heirs, executors,
administrators,  legal  representatives,  successors  and assigns of such Person
where the context so admits.

         "Prime  Rate"  shall  mean  the  annual   floating  rate  of  interest,
determined  daily and expressed as a percentage,  from time to time announced by
Toronto-Dominion  (Texas), Inc. as its "prime" or "base" rate, so-called,  or if
at any time such bank  ceases  to  announce  such a rate,  as  announced  by the
largest  national  or  state-chartered   banking  institution  then  having  its
principal office in the New York City and announcing such a rate. If at any time
neither Toronto-Dominion (Texas), Inc nor any of the five largest other national
or state-chartered  banking  institutions  having their principal offices in the
New York City is announcing such a floating rate, "Prime Rate" shall mean a rate
of interest,  determined  daily,  which is two (2)  percentage  points above the
14-day moving average closing trading price of 90-day Treasury Bills.

         "Profit" and "Loss" shall mean,  for each Fiscal Year or other  period,
an amount equal to the Company's taxable income or loss for such year or period,
determined in accordance with Section 703(a) of the Code (provided that for this
purpose,  all items of income,  gain,  loss, or deduction  required to be stated
separately  pursuant  to  Section  703(a)(1)  of the Code shall be  included  in
taxable income or loss), with the following adjustments:

         (a)      Any income of the Company that is exempt from  Federal  income
                  tax and not otherwise  taken into account in computing  Profit
                  or Loss  pursuant  to this  provision  shall  be added to such
                  taxable income or loss;

         (b)      Any   expenditures   of  the  Company   described  in  Section
                  705(a)(2)(B)   of  the  Code  or  treated   as  Code   Section
                  705(a)(2)(B)      expenditures     pursuant     to     Section
                  1.704-1(b)(2)(iv)(i)  of the  Treasury  Regulations,  and  not
                  otherwise  taken  into  account  in  computing  Profit or Loss
                  pursuant  to this  provision,  shall be  subtracted  from such
                  taxable income or loss;

         (c)      Book Gain or Book Loss shall be taken into  account in lieu of
                  any tax gain or tax loss  recognized  by the Company by reason
                  of any sale or disposition of an asset of the Company; and

         (d)      In lieu  of the  depreciation,  amortization  and  other  cost
                  recovery  deductions  taken  into  account in  computing  such
                  taxable  income or loss,  there  shall be taken  into  account
                  Depreciation  for such  Fiscal  Year,  computed as provided in
                  this Agreement.

         If the  Company's  taxable  income  or loss for such  Fiscal  Year,  as
adjusted in the manner provided above, is a positive  amount,  such amount shall
be the Company's  Profit for such Fiscal Year;  and if a negative  amount,  such
amount shall be the Company's Loss for such Fiscal Year.

         If the Book Value of the  Company  assets is  adjusted  pursuant to the
last  sentence of the  definition of Book Value,  the amount of such  adjustment
shall  be  included  in  computing  Profit  or  Loss.  If any  Company  asset is
distributed in kind (whether in connection  with the  liquidation of the Company
or  otherwise),  the  Company  shall be deemed to have  realized  Profit or Loss
thereon in the same  manner as if the  Company had sold such asset for an amount
equal to its fair market value on the date of  distribution,  as  determined  in
good faith by a Determination of the Members.

         "Regulatory  Allocations"  shall  have the  meaning  given such term in
Section 5.7.

         "Stated Amount" shall have the meaning given such term in Section 8.3.

         "Subsidiary"  shall mean, with respect to any Person, any Entity (i) in
which such Person owns directly, or indirectly through one or more Subsidiaries,
twenty percent (20%) or more of the voting or beneficial  interest or (ii) which
such Person  otherwise  has the right or power to control  (whether by contract,
through ownership of securities or otherwise).

          "Tax Matters Member" shall have the meaning given such term in Section
4.5(b).


                                       A-6

<PAGE>



         "Transfer"  shall mean,  in the  context of a Transfer of a  Membership
Interest,  the  sale,  assignment,  pledge,  hypothecation,  transfer  or  other
voluntary  disposition  (by  gift or  otherwise,  and  whether  as  security  or
otherwise) by a Member of all or a portion of its Interest. For purposes of this
definition,  "Transfer" of a Company Interest includes (i) the sale, assignment,
pledge,  hypothecation,  transfer  or other  voluntary  disposition  (by gift or
otherwise,  and whether as security or otherwise)  of an equity  interest in any
Person substantially all of the assets of which consist, directly or indirectly,
of a Company  Interest,  or (ii) the merger or consolidation of a Member,  or of
any Person referred to in clause (i), with another Person.

         "Treasury  Regulations"  shall mean the Federal income tax regulations,
including any temporary or proposed regulations,  promulgated under the Code, as
such Treasury  Regulations may be amended from time to time (it being understood
that all  references  herein to specific  sections of the  Treasury  Regulations
shall be deemed  also to refer to any  corresponding  provisions  of  succeeding
Treasury Regulations).

         "Unaffiliated  Person" shall mean, with respect to any Person, a Person
who is not an Affiliate as to such Person.


                                       A-7

<PAGE>


                                                                 MEMBER SCHEDULE



                  Initial Capital Contributions of the Members




           Member and Address                                    Contribution

American Tower Systems, Inc.
6400 North Congress Avenue, Suite 1750
Boca Raton, Florida 33487
Attention: Chief Operating Officer and
              Chief Financial Officer
Telecopier No.: (407) 998-2278

Communication Systems Development, Inc.
7488 Shoreline Drive, Suite B-1
Stockton, California 95219
Attention: Michael Wingo, Chief Executive Officer
Telecopier No.: (209) 951-5845




                                       A-8

                                                                    Exhibit 10.2













                            ASSET PURCHASE AGREEMENT

                                 By and Between

                          AMERICAN TOWER SYSTEMS, INC.

                             B & E ASSOCIATES, INC.

                                   Dated as of

                                  May 27, 1997












<PAGE>

<TABLE>
<CAPTION>

                                                   TABLE OF CONTENTS
<S>              <C>                                                                                            <C>

ARTICLE 1         DEFINED TERMS...................................................................................1

ARTICLE 2         SALE AND PURCHASE OF ASSETS.....................................................................1
                  2.1      Agreement to Sell and Buy..............................................................1
                  2.2      Assumption of Liabilities and Obligations. ............................................1
                  2.3      Closing; Purchase Price................................................................3
                  2.4      Accounts Receivable....................................................................3

ARTICLE 3         REPRESENTATIONS AND WARRANTIES OF BEA...........................................................4
                  3.1      Organization and Business; Power and Authority; Effect of Transaction..................4
                  3.2      Financial and Other Information.  .....................................................5
                  3.3      Changes in Condition...................................................................5
                  3.4      Materiality............................................................................5
                  3.5      Title to Properties; Leases............................................................5
                  3.6      Compliance with Private Authorizations.................................................5
                  3.7      Compliance with Governmental Authorizations and Applicable Law.........................6
                  3.8      Intangible Assets......................................................................7
                  3.9      Related Transactions...................................................................7
                  3.10     Solvency...............................................................................7
                  3.12     Employee Retirement Income Security Act of 1974........................................7
                  3.13     Absence of Sensitive Payments..........................................................7
                  3.14     Inapplicability of Specified Statutes..................................................8
                  3.15     Employment Arrangements................................................................8
                  3.16     Material Agreements....................................................................8
                  3.17     Ordinary Course of Business............................................................8
                  3.18     Broker or Finder.......................................................................9

ARTICLE 4         REPRESENTATIONS AND WARRANTIES OF ATS...........................................................9
                  4.1      Organization and Business; Power and Authority; Effect of Transaction..................9
                  4.2      Broker or Finder......................................................................10
                  4.3      Solvency..............................................................................10
                  4.4      No Legal Action.......................................................................10

ARTICLE 5         CLOSING CONDITIONS.............................................................................10
                  5.1      Conditions to Obligations of Each Party to effect the Transactions....................10
                  5.2      Conditions to Obligations of ATS......................................................11
                  5.3      Conditions to Obligations of BEA......................................................11

ARTICLE 6         INDEMNIFICATION................................................................................12
                  6.1      Survival..............................................................................12
                  6.2      Indemnification.......................................................................12
                  6.3      Limitation of Liability...............................................................13
                  6.4      Notice of Claims......................................................................13
                  6.5      Defense of Third Party Claims.........................................................13
                  6.6      Exclusive Remedy......................................................................14

ARTICLE 7         GENERAL PROVISIONS.............................................................................14
                  7.1      Amendment.............................................................................14
                  7.2      Waiver................................................................................14

                                      

<PAGE>



                  7.3      Fees, Expenses and Other Payments.....................................................14
                  7.4      Notices...............................................................................14
                  7.5      Specific Performance; Other Rights and Remedies.......................................15
                  7.6      Severability..........................................................................16
                  7.7      Counterparts..........................................................................16
                  7.8      Section Headings......................................................................16
                  7.9      Governing Law.........................................................................16
                  7.10     Further Acts..........................................................................16
                  7.11     Entire Agreement......................................................................16
                  7.12     Assignment............................................................................17
                  7.13     Parties in Interest...................................................................17
                  7.14     Arbitration...........................................................................17
                  7.15     Mutual Drafting.......................................................................17

</TABLE>

APPENDIX A:       Definitions

SCHEDULES:        BEA Disclosure Schedule




                                      -ii-

<PAGE>


                            ASSET PURCHASE AGREEMENT

         This Asset Purchase Agreement (this "Agreement") is dated as of May 21,
1997 by and  between  American  Tower  Systems,  Inc.,  a  Delaware  corporation
("ATS"), and B & E Associates, Inc., a Massachusetts corporation ("BEA").

         WHEREAS, BEA is engaged in the business of identifying and locating and
managing communication sites for third parties (the "BEA Business"); and

         WHEREAS, ATS desires to purchase and BEA desires to sell the BEA Assets
and the BEA Business on the terms and conditions hereinafter set forth;

         NOW,  THEREFORE,  in  consideration  of  the  above  premises  and  the
covenants and agreements contained herein, the parties,  intending to be legally
bound, do hereby covenant and agree as follows:


                                    ARTICLE 1

                                  DEFINED TERMS

         As used  herein,  unless  the  context  otherwise  requires,  the terms
defined in  Appendix A shall have the  respective  meanings  set forth  therein.
Terms defined in the singular  shall have a comparable  meaning when used in the
plural,  and vice  versa,  and the  reference  to any gender  shall be deemed to
include all genders.  Unless otherwise  defined or the context otherwise clearly
requires,  terms for which  meanings are provided in this  Agreement  shall have
such  meanings  when used in the BEA  Disclosure  Schedule  and each  Collateral
Document  executed  or required  to be  executed  pursuant  hereto or thereto or
otherwise delivered,  from time to time, pursuant hereto or thereto.  References
to "hereof", "herein" or similar terms are intended to refer to the Agreement as
a whole and not a  particular  Section,  and  references  to "this  Section" are
intended to refer to the entire Section and not a particular subsection thereof.
The term "either party" shall, unless the context otherwise  requires,  refer to
BEA and ATS.


                                    ARTICLE 2

                           SALE AND PURCHASE OF ASSETS

         2.1 Agreement to Sell and Buy.  Subject to the terms and conditions set
forth in this Agreement, BEA hereby agrees to sell, assign, transfer and deliver
to ATS at the Closing, and ATS agrees to purchase at the Closing, the BEA Assets
and the BEA  Business,  free and  clear of any  Liens of any  nature  whatsoever
except for  Permitted  Liens.  For  purposes  of this  Agreement,  the term "BEA
Assets" shall mean all of the Assets of BEA set forth on Schedule 2.1 of the BEA
Disclosure Schedule.

         2.2      Assumption of Liabilities and Obligations.

         (a) At the Closing,  ATS shall assume and agree to pay,  discharge  and
perform the following obligations and liabilities of BEA (collectively, the "BEA
Assumed  Obligations"):  (i) all of the obligations and liabilities of BEA under
the BEA Assumable  Agreements,  and (ii) all  obligations and liabilities of BEA
with respect to the ownership and operation of the BEA Assets and the conduct of
the BEA Business, on and

                                                     


<PAGE>



after the Closing Date; provided,  however,  that notwithstanding the foregoing,
ATS shall not assume and agree to pay, and shall not be  obligated  with respect
to, the BEA Nonassumed Obligations.

         (b) ATS shall  not  assume or become  obligated  to  perform  any debt,
liability  or  obligation  of BEA  relating  to any  of  the  following  matters
(collectively, the "BEA Nonassumed Obligations"):

                  (i)  the  ownership  or  operation  of the BEA  Assets  or the
         conduct  of the BEA  Business  prior  to the  Closing  Date,  including
         without  limitation  Taxes,  unfunded  pension  costs,  any  Employment
         Arrangement of BEA (including  without limitation any obligation to any
         BEA Employee for severance benefits,  vacation time or sick leave), and
         any of the  following  to the extent same arise from  Events  occurring
         prior to or existing on the Closing  Date:  products  liability,  Legal
         Actions or other Claims,  and obligations  and liabilities  relating to
         Environmental Law;

                  (ii) any  obligations or  liabilities  under the BEA Assumable
         Agreements relating to the period prior to the Closing;

                  (iii)  any insurance policies of BEA;

                  (iv) those  required  to be  disclosed  in the BEA  Disclosure
         Schedule  which are not so disclosed or which,  if  disclosed,  Section
         2.2(b)(iv)  of  the  BEA  Disclosure   Schedule   indicates  that  such
         obligation or liability will not be assumed;

                  (v) any liability or obligation  from or relating to breach of
         any warranty or any  misrepresentation  by BEA under this  Agreement or
         any Collateral Document;

                  (vi) any liability or obligation from or relating to breach or
         violation  of,  or  failure  to  perform,  any  of  BEA's  obligations,
         covenants,  agreements or  undertakings  set forth in this Agreement or
         any Collateral Document, including without limitation Article 5 of this
         Agreement;

                  (vii) any obligation or liability relating to any asset of BEA
         not included in the BEA Assets.

                  (viii) any obligation or liability with respect to capitalized
         lease obligations or Indebtedness for Money Borrowed;

                  (ix) any Taxes, fees, expenses or other amounts required to be
         paid  by BEA  pursuant  to the  provisions  of  this  Agreement  or any
         Collateral Document; and

                  (x) any Contract with any Affiliate of BEA,  other than those,
         if any, set forth in Section 2(b)(x) of the BEA Disclosure Schedule.

All  BEA  Nonassumed  Obligations  shall  remain  and  be  the  obligations  and
liabilities solely of BEA.

         (c)  Notwithstanding  anything  contained  in  this  Agreement  to  the
contrary,  except as set forth in Section 2.2(c) of the BEA Disclosure Schedule,
all items of income and expense  (including  without  limitation with respect to
rent,  utility  charges,  Pro Ratable Taxes and wages,  salaries and accrued but
unused vacation of BEA employees) arising from the ownership or operation of the
BEA Assets or the  conduct of the BEA  Business  shall be  prorated  as of 12:01
a.m.,  Eastern time, on the Closing Date,  with BEA entitled to and  responsible
for any  such  items on or prior to the  Closing  Date and ATS  entitled  to and
responsible  for any such items  relating to any  subsequent  period.  For these
purposes, Pro Ratable Taxes attributable to a period that begins before and ends
after the Closing Date shall be treated on a "closing of the books" basis

                                       -2-


<PAGE>



as two  partial  periods,  one ending at the close of the  Closing  Date and the
other beginning on the day after the Closing Date, except that Pro Ratable Taxes
(such as property  Taxes)  imposed on a periodic  basis shall be  allocated on a
daily basis.  If either party shall have  received any such revenues or paid any
such expenses or charges which, pursuant to the terms hereof, the other party is
entitled to or responsible for, it shall furnish the other party with a detailed
statement  of any such  items as soon as  practicable  after  receipt or payment
thereof.  The parties  shall use their best efforts to agree upon such items and
other  adjustments  prior to the Closing  Date and, in any event,  except as set
forth in Section 2.2(c) of the BEA Disclosure  Schedule,  within sixty (60) days
thereafter.  If the  parties  are unable  within  such period to agree upon such
items and other  adjustments,  BEA and ATS shall,  within the following ten (10)
days, jointly designate a nationally known independent public accounting firm to
be  retained  to review  such  items and other  adjustments.  The fees and other
expenses of retaining such  independent  public  accounting  firm shall be borne
equally by BEA and ATS. Such firm shall report its  conclusions as to such items
and  other  adjustments  pursuant  to this  Section  and  such  report  shall be
conclusive  on all  parties  to this  Agreement  and not  subject  to dispute or
review.  Upon such agreement or  determination  by such  independent  accounting
firm, BEA or ATS, as the case may be, shall  promptly  reimburse the other party
for any income  received or expenses paid by the other party and not  previously
reimbursed or any other adjustment required by this Section.

         Nothing contained in this Section 2.2(c) is intended or shall be deemed
to amend or modify the indemnification provisions of Article 8 nor to reallocate
responsibility for the matters set forth therein.

         2.3  Closing;  Purchase  Price.  The closing of the  Transactions  (the
"Closing") shall take place at Sullivan & Worcester LLP, One Post Office Square,
Boston, Massachusetts 02109, at 10:00 a.m., local time, on May 21 , 1997 or such
other  date,  prior to the  Termination  Date,  as the  parties  may agree  (the
"Closing Date"). At the Closing, each of the parties shall deliver such bills of
sale,  assignments,  assumptions of liabilities,  opinions and other instruments
and  documents  as are  described  in  this  Agreement  or as  may be  otherwise
reasonably  requested by the parties and their respective counsel.  The purchase
price for the BEA Assets and the BEA Business (the "Purchase Price") shall be an
amount equal to $4,333,000,  subject to adjustment as provided in Section 2.2(d)
plus an amount  equal to the Prepaid  Expenses  and minus an amount equal to the
sum of (i) the BEA Nonassumed  Obligations,  if any, which ATS agrees to assume,
and (ii) Prepaid Revenues.

         2.4  Accounts  Receivable.  At the closing,  BEA shall  appoint ATS its
agent for the purpose of collecting all Accounts  Receivable relating to the BEA
Business.  BEA  shall  deliver  to ATS on or as soon as  practicable  after  the
Closing Date a complete and detailed  statement showing the name, amount and age
of each Accounts  Receivable of the BEA Business.  Subject to and limited by the
following,  revenues  relating to the  Accounts  Receivable  relating to the BEA
Business will be for the account of BEA. ATS shall use the same  procedures  and
efforts which it uses with respect to its own accounts receivable to collect the
Accounts Receivable with respect to the BEA Business for a period of ninety (90)
days after the Closing Date (the "Collection  Period").  Any payment received by
ATS during the  Collection  Period from any customer with an account which is an
Accounts  Receivable  with respect to the BEA Business shall first be applied in
reduction of the Accounts Receivable,  unless the customer contests the validity
of such  application.  If the  customer  contests  the  validity  of any payment
received by ATS during the  Collection  Period to be applied in reduction of the
Accounts  Receivable,  then ATS shall  promptly  notify BEA and any payment with
respect to which  application  is contested  as aforesaid  shall be placed in an
escrow arrangement reasonably  satisfactory to ATS and BEA until the validity of
the application is determined.  During the Collection  Period, ATS shall furnish
BEA with a list of, and pay over to BEA, the amounts  collected  with respect to
the Accounts  Receivable with respect to the BEA Business on a monthly basis and
forward to BEA, promptly upon receipt or delivery, as the case may be, copies of
all correspondence relating to Accounts Receivable. ATS shall provide BEA with a
final  accounting on or before the fifteenth (15th) day following the end of the
Collection Period.  Upon the request of either party at and after such time, the
parties shall meet to mutually

                                       -3-


<PAGE>



and in good faith analyze any  uncollected  Accounts  Receivable to determine if
the same, in their reasonable  business  judgment,  are deemed to be collectable
and if ATS desires to retain such Accounts Receivable.  As to each such Accounts
Receivable,  the parties  shall  negotiate  a good faith value of such  Accounts
Receivable,  which ATS shall pay to BEA if ATS, in its sole discretion,  chooses
to retain such Accounts Receivable. BEA shall retain the right to collect any of
its Accounts Receivable as to which the parties are unable to reach agreement as
to a good faith value, and ATS agrees to turn over to BEA any payments  received
against any such  Accounts  Receivable.  ATS shall not be  obligated  to use any
extraordinary  efforts to collect any of the Accounts  Receivable assigned to it
for  collection  hereunder  or to refer  any of such  Accounts  Receivable  to a
collection agency or to any attorney for collection,  and ATS shall not make any
such  referral  or  compromise,  nor  settle  or adjust  the  amount of any such
Accounts  Receivable,  except with the  approval of BEA. ATS shall not incur any
liability to BEA for any  uncollected  account  unless ATS shall have engaged in
willful misconduct or gross negligence in the performance of its obligations set
forth in this Section.  During and after the Collection Period, without specific
agreement  with ATS to the  contrary,  neither BEA nor its agents shall make any
direct solicitation of the Accounts Receivable for collection  purposes,  except
for Accounts Receivable retained by BEA after the Collection Period.


                                    ARTICLE 3

                      REPRESENTATIONS AND WARRANTIES OF BEA

         BEA hereby represents,  warrants and covenants to, and agrees with, ATS
as follows:

         3.1  Organization  and  Business;   Power  and  Authority;   Effect  of
Transaction.

         (a) BEA is a corporation  duly organized,  validly existing and in good
standing under the laws of its jurisdiction of  organization,  has all requisite
power  and  authority  (corporate  and  other)  to own or hold  under  lease its
properties and to conduct its business as now conducted.

         (b) BEA has all requisite  corporate power and corporate  authority and
has in full  force  and  effect  all  Governmental  Authorizations  and  Private
Authorizations,  except  for  those  set  forth  in  Section  3.1(b)  of the BEA
Disclosure  Schedule or those the failure of which to obtain do not and will not
have,  individually  or in the  aggregate,  any material  adverse effect on BEA,
necessary  to enable it to execute and deliver,  and to perform its  obligations
under,  this Agreement and each Collateral  Document  executed or required to be
executed by it pursuant hereto or thereto or to consummate the Transactions; and
the execution,  delivery and  performance of this Agreement and each  Collateral
Document  executed or  required to be executed by it pursuant  hereto or thereto
have been duly authorized by all requisite corporate or other action on the part
of either of the BEA. This Agreement has been duly executed and delivered by BEA
and  constitutes,  and each  Collateral  Document  executed  or  required  to be
executed by it pursuant hereto or thereto or to consummate the Transactions when
executed  and  delivered  by BEA  will  constitute,  legal,  valid  and  binding
obligations  of BEA,  enforceable  in accordance  with their  respective  terms,
except  as  such  enforceability  may  be  limited  by  bankruptcy,  moratorium,
insolvency  and similar laws  affecting the rights and remedies of creditors and
obligations of debtors generally and by general principles of equity.

         (c)  Except  as set  forth  in  Section  3.1(c)  of the BEA  Disclosure
Schedule,  and except for matters which would have no material adverse effect on
the BEA,  neither the  execution  and  delivery by BEA of this  Agreement or any
Collateral Document executed or required to be executed by it pursuant hereto or
thereto,  nor the consummation by BEA of the  Transactions,  nor compliance with
the terms, conditions and provisions hereof or thereof by BEA:


                                       -4-


<PAGE>



                  (i) will conflict with, or result in a breach or violation of,
         or  constitute  a default  under,  any  Organic  Document of BEA or any
         Applicable  Law on the part of BEA, or will conflict with, or result in
         a breach or violation of, or constitute a default under,  or permit the
         acceleration  of  any  obligation  or  liability  in,  or but  for  any
         requirement  of  giving  of notice  or  passage  of time or both  would
         constitute  such a conflict  with,  breach or violation  of, or default
         under, or permit any such  acceleration in, any Contractual  Obligation
         of BEA,  other  than those  constituting  BEA  Nonassumed  Obligations;
         provided,  however,  that BEA makes no representation and warranty that
         any Contractual  Obligation  which requires a consent to its assignment
         will not be  breached  if such  consent  is not  obtained  prior to the
         Closing and the rights of BEA thereunder are  nevertheless  assigned to
         ATS; or

                  (ii)  will  require  BEA to make or  obtain  any  Governmental
         Authorization,  Governmental Filing or Private Authorization  including
         without limitation under the FCA.

         (d)      BEA has no Subsidiaries.

         3.2 Financial and Other Information.  The BEA has heretofore  furnished
to ATS  copies  of  the  internally  prepared  cash  basis  income  and  expense
statements  of the BEA  Business  listed in  Section  3.2 of the BEA  Disclosure
Schedule  (the "BEA  Statements").  The BEA  Statements  are true,  accurate and
complete cash basis income and expense statements in all material  respects,  do
not contain any untrue statement of a material fact, and fairly present the cash
flow of the BEA Business for the respective periods covered thereby,  subject to
normal nonmaterial  adjustments.  ATS acknowledges that no representations  have
been made by BEA that (a) the past financial  performance of BEA as reflected in
the BEA Statements (and on the Tax Returns furnished  pursuant to the provisions
of Section 3.11) are in any way reflective of future  financial  performance and
(b) that certain  amounts of income  included in the BEA Statements  (and on the
Tax Returns  furnished  pursuant to the  provisions of Section 3.11) are derived
from sources other than the BEA Assets.

         3.3 Changes in Condition.  Since the date of the most recent statements
constituting  a part of the BEA  Statements,  except to the extent  specifically
described  in  Section  3.3 of the BEA  Disclosure  Schedule,  there has been no
material adverse change in the BEA Assets or the BEA Business. There is no Event
known  to BEA  which  materially  adversely  affects,  or (so far as BEA can now
reasonably foresee) is likely to materially  adversely affect, the BEA Assets or
the BEA Business,  except to the extent specifically described in Section 3.3 of
the BEA Disclosure Schedule.

         3.4 Materiality.  The  representations and warranties set forth in this
Article would in the aggregate be true and correct even without the  materiality
exceptions  or  qualifications  contained  therein  or  set  forth  in  the  BEA
Disclosure  Schedule,  except for such exceptions and  qualifications  including
without limitation those set forth in the BEA Disclosure  Schedule which, in the
aggregate for all such  representations  and  warranties,  are not and could not
reasonably  be  expected to be  materially  adverse to the BEA Assets or the BEA
Business.

         3.5  Title to  Properties;  Leases.  BEA does not own or lease any real
property or lease any  personal  property  that is part of the BEA Assets or own
any  material  items of  tangible  personal  property  and,  therefore,  no real
property or any  material  items of tangible  personal  property or any interest
therein is being transferred.

         3.6  Compliance  with  Private  Authorizations.  Section 3.6 of the BEA
Disclosure   Schedule  sets  forth  a  true,  accurate  and  complete  list  and
description of each Private  Authorization which individually is material to the
BEA Assets or the BEA  Business.  BEA has  obtained  all Private  Authorizations
which are  necessary  for the  ownership  or  operation of the BEA Assets or the
conduct of the BEA  Business  which,  if not  obtained  and  maintained,  could,
individually or in the aggregate, materially adversely affect BEA;

                                       -5-


<PAGE>



provided,  however,  that the  representations  and warranties set forth in this
Section are not intended to apply to (a) any of the  consents  required in order
to assign the BEA Assets to ATS pursuant to the  provisions  of this  Agreement,
and (b) the  failure of BEA to obtain  any or all of the  consents  required  in
order to  assign  the BEA  Assets  to ATS  pursuant  to the  provisions  of this
Agreement. All of such Private Authorizations are valid and in good standing and
are in full  force  and  effect.  BEA is not in breach  or  violation  of, or in
default in the  performance,  observance  or  fulfillment  of, any such  Private
Authorization,  and no Event exists or has occurred,  which constitutes,  or but
for any  requirement  of  giving  of notice  or  passage  of time or both  would
constitute,  such a  breach,  violation  or  default,  under  any  such  Private
Authorization,  except for such  defaults,  breaches or violations as do not and
will not have in the aggregate  any material  adverse  effect on BEA;  provided,
however, that the foregoing representation and warranty is not intended to apply
to the failure of BEA to obtain all consents required in order to assign the BEA
Assets to ATS  pursuant to the  provisions  of this  Agreement.  No such Private
Authorization is the subject of any pending or, to BEA's  knowledge,  threatened
attack, revocation or termination.

         3.7 Compliance with Governmental Authorizations and Applicable Law.

         (a) Except as otherwise specifically described in Section 3.7(a) of the
BEA Disclosure Schedule,  there is no Governmental  Authorization required under
Applicable Laws (i) to own and operate the BEA Business,  as currently conducted
or proposed to be  conducted  on or prior to the Closing  Date,  or (ii) that is
necessary to permit BEA to execute and deliver this Agreement and to perform its
obligations hereunder;  provided, however, that the foregoing representation and
warranty  is  not  intended  to  apply  to  consents  of  Persons   (other  than
Authorities)  required in order to assign the BEA Assets to ATS  pursuant to the
provisions of this Agreement.

         (b) Except as otherwise specifically described in Section 3.7(b) of the
BEA  Disclosure  Schedule,  neither BEA nor any director or officer  thereof (in
connection  with  ownership or operation of the BEA Assets or the conduct of the
BEA Business) is in or is charged by any Authority with or, to BEA's  knowledge,
at any time  since  January  1,  1993 has  been in or has  been  charged  by any
Authority with, or, to BEA's knowledge,  is threatened or under investigation by
any  Authority  with  respect  to,  breach or  violation  of, or  default in the
performance,  observance or  fulfillment  of, any Applicable Law relating to the
ownership and operation of the BEA Assets or the conduct of the BEA Business. In
particular,  but without limiting the generality of the foregoing,  there are no
applications,  complaints  or Legal  Actions  pending  or,  to BEA's  knowledge,
threatened before or by any Authority (x) relating to the ownership or operation
of the BEA Assets or the conduct of the BEA Business  which,  individually or in
the  aggregate,  are  reasonably  likely  to  result  in the  imposition  of any
restriction  of such a  nature  as  would  adversely  affect  the  ownership  or
operation of the BEA Assets or the conduct of the BEA  Business;  (y)  involving
charges of illegal  discrimination  by BEA under any federal or state employment
Laws, or (z) involving  Environmental  Laws or zoning laws,  except as otherwise
specifically described in Section 3.7(b) of the BEA Disclosure Schedule.

         (c) Except as otherwise specifically described in Section 3.7(c) of the
BEA  Disclosure  Schedule,  no Event  exists or has  occurred,  which,  to BEA's
knowledge,  constitutes,  or but for any  requirement  of  giving  of  notice or
passage of time or both would constitute,  such a breach,  violation or default,
under any Applicable Law, except for such breaches, violations or defaults as do
not and will not have,  individually or in the aggregate,  any material  adverse
effect on the BEA Assets or the BEA Business.

         (d) With respect to matters, if any, of a nature referred to in Section
3.7(b)  or  3.7(c)  of  the  BEA  Disclosure   Schedule,   except  as  otherwise
specifically  described in Section  3.7(d) of the BEA Disclosure  Schedule,  all
such  information  and  matters  set forth in the BEA  Disclosure  Schedule,  if
adversely  determined  against BEA, will not,  individually or in the aggregate,
have a materially adverse effect on the BEA Assets or the BEA Business.

                                       -6-


<PAGE>




         3.8  Intangible  Assets.  There are no  Intangible  Assets  (other than
Private  Authorizations)  required  for the  ownership  or  operation of the BEA
Assets or the  conduct of the BEA  Business as  currently  owned,  operated  and
conducted  or proposed to be owned,  operated  and  conducted on or prior to the
Closing  Date.  BEA, to its  knowledge,  does not  wrongfully  infringe  upon or
unlawfully  use any Intangible  Assets owned or claimed by another,  and BEA has
not  received  any  notice of any  claim or  infringement  relating  to any such
Intangible Asset.

         3.9  Related  Transactions.  BEA  is  not a  party  or  subject  to any
Contractual  Obligation relating to the ownership or operation of the BEA Assets
or the  conduct  of the  BEA  Business  between  BEA  and  any of its  officers,
directors, shareholders, employees or, to the knowledge of BEA, any Affiliate of
any thereof,  including without limitation any Contractual  Obligation providing
for the furnishing of services to or by, providing for rental of property, real,
personal or mixed,  to or from,  or  providing  for the lending or  borrowing of
money to or from or otherwise  requiring  payments to or from,  any such Person,
other than (i)  Employment  Arrangements  listed or described in Section 3.15 of
the BEA Disclosure Schedule, (ii) Contractual Obligations between BEA and any of
its directors, shareholders,  officers, employees or Affiliates of BEA or any of
the foregoing,  which constitute  assets other than BEA Assets or BEA Nonassumed
Obligations,  or (iii) as  specifically  set  forth  in  Section  3.9 of the BEA
Disclosure Schedule.

         3.10 Solvency. As of the execution and delivery of this Agreement,  BEA
is, and immediately  prior to and after giving effect to the consummation of the
Transactions will be, solvent.

         3.11     Tax Matters.

         (a) BEA is not a "consenting corporation" within the meaning of Section
341(f)  of the  Code.  BEA has at all  times  been  taxable  as a  Subchapter  C
corporation  under the Code,  and has  never  been a member of any  consolidated
group for Tax purposes,  except as otherwise set forth in Section 3.11(a) of the
BEA Disclosure Schedule.

         (b) The information  shown on the federal income Tax Returns of BEA for
each of the most recent four tax years (true and complete  copies of which have,
to the extent requested by ATS, been furnished by BEA to ATS) is true,  accurate
and complete in all material  respects  and fairly and  accurately  reflects the
information  purported  to be shown.  Federal  Tax  Returns of BEA have not been
examined by the Internal Revenue  Service,  and BEA has not been notified of any
proposed  examination,  except as shown in Section 3.11(b) of the BEA Disclosure
Schedule.

         (c) BEA is not a party to any tax sharing agreement or arrangement.

         3.12 Employee  Retirement  Income  Security Act of 1974. BEA (which for
purposes of this Section  shall  include any ERISA  Affiliate) is not making any
contribution  to or sponsoring,  and has not at any time since its  organization
made any contribution to or sponsored,  any Plan or Benefit Arrangement which is
subject to ERISA.

         3.13  Absence  of  Sensitive  Payments.   Neither  BEA  nor,  to  BEA's
knowledge,  any  of  its  officers,   directors,   employees,  agents  or  other
representatives, has with respect to the BEA Assets or the BEA Business (a) made
any  contributions,  payments  or  gifts  to or  for  the  private  use  of  any
governmental official, employee or agent where either the payment or the purpose
of such  contribution,  payment or gift is illegal  under the laws of the United
States or the  jurisdiction  in which made or (b)  established or maintained any
unrecorded fund or asset for any purpose or made any false or artificial entries
on its books.


                                       -7-


<PAGE>



         3.14  Inapplicability  of  Specified  Statutes.  BEA is not a  "holding
company", or a "subsidiary company" or an "affiliate" of a "holding company", as
such terms are defined in the Public  Utility  Holding  Company Act of 1935,  as
amended,  or an "investment  company" or a company  "controlled" by or acting on
behalf of an "investment  company",  as defined in the Investment Company Act of
1940, as amended, or a "carrier" or a person which is in control of a "carrier",
as defined in section 11301 of Title 49, U.S.C.

         3.15  Employment  Arrangements.  Section  3.15  of the  BEA  Disclosure
Schedule  contains a true,  accurate  and  complete  list of all  employees  and
consultants  of BEA involved in the  ownership or operation of the BEA Assets or
the conduct of the BEA Business (the "BEA  Employees"),  together with each such
employee's  title or the  capacity in which he or she is employed  and the basis
for  the  BEA  Employees'  compensation.  BEA has no  obligation  or  liability,
contingent or other,  under any  Employment  Arrangement  with any BEA Employee,
other than those  listed or  described  in  Section  3.15 of the BEA  Disclosure
Schedule.  Except as described in Section 3.15 of the BEA  Disclosure  Schedule,
(a)  none of the BEA  Employees  is now,  or since  January  1,  1993 has  been,
represented  by  any  labor  union  or  other  employee  collective   bargaining
organization,  and BEA is not and  never  has been a party to any labor or other
collective  bargaining  agreement with respect to any of the BEA Employees,  (b)
there are no pending grievances, disputes or controversies with any union or any
other employee or collective  bargaining  organization of the BEA Employees,  or
threats of strikes,  work  stoppages  or  slowdowns  or any pending  demands for
collective  bargaining by any such union or other organization,  (c) neither BEA
nor any of the BEA Employees is now, or has since January 1, 1993 been,  subject
to or involved in or, to BEA's knowledge,  threatened with, any union elections,
petitions therefore or other  organizational or recruiting  activities,  in each
case with respect to the BEA  Employees,  and (d) none of the BEA  Employees has
notified  BEA that he or she does not  intend to  continue  employment  with BEA
until the Closing or with ATS  following  the Closing.  BEA has performed in all
material respects all obligations  required to be performed under all Employment
Arrangements  and is not in  material  breach  or  violation  of or in  material
default or arrears under any of the terms, provisions or conditions thereof.

         3.16 Material Agreements.  Listed on Section 3.16 of the BEA Disclosure
Schedule are all Material  Agreements  relating to the ownership or operation of
the BEA Assets or the conduct of the  business  of the BEA  Business or to which
BEA is a party  or to  which it is  bound  or  which  any of the BEA  Assets  is
subject.  True, accurate and complete copies of each of such Material Agreements
have been made available by BEA to ATS and BEA has provided ATS with photocopies
of  all  such  Material  Agreements  requested  by  ATS.  All of  such  Material
Agreements are valid, binding and legally enforceable obligations of BEA and, to
BEA's knowledge, all other parties thereto, except as such enforceability may be
limited by  bankruptcy,  moratorium,  insolvency  and similar laws affecting the
rights and remedies of creditors  and  obligations  of debtors  generally and by
general  principles  of equity.  BEA has duly  complied with all of the material
terms  and  conditions  of each  such  Material  Agreement  and has not  done or
performed,  or failed  to do or  perform  (and  there is no  pending  or, to the
knowledge of BEA, Claim threatened in writing that BEA has not so complied, done
and  performed or failed to do and perform)  any act which would  invalidate  or
provide  grounds  for the other  party  thereto  to  terminate  (with or without
notice, passage of time or both) such Material Agreement or impair the rights or
benefits, or increase the costs, of BEA under any of such Material Agreements in
any material respect.

         3.17 Ordinary Course of Business. BEA, from the date of the most recent
BEA Financial  Statements to the date hereof,  except (i) as may be described on
Section  3.17 of the BEA  Disclosure  Schedule,  or (ii) as may be  required  or
expressly  contemplated by the terms of this Agreement,  with respect to the BEA
Assets and the BEA Business:

                  (a) has operated its business in all material  respects in the
         normal,  usual and customary  manner in the ordinary and regular course
         of business, consistent with prior practice;

                                       -8-


<PAGE>




                  (b) except in each case in the  ordinary  course of  business,
         consistent with prior practice:

                           (i) has not  incurred  any  obligation  or  liability
                  (fixed,  contingent or other)  individually  having a value in
                  excess of $20,000;

                           (ii)  has  not  sold  or  otherwise  disposed  of  or
                  contracted  to  sell  or  otherwise  dispose  of  any  of  its
                  properties or assets having a value in excess of $20,000;

                           (iii) has not entered into any individual  commitment
                  having a value in excess of $20,000; and

                           (iv)  has not canceled any debts or claims;

                  (c) has not created or permitted to be created any Lien on any
         of its property;

                  (d) has not  increased the  compensation  payable or to become
         payable to any of the BEA Employees  other than in the ordinary  course
         of business or otherwise  materially  altered,  modified or changed the
         terms of their employment, except for its officers;

                  (e) has not  waived  any rights of  material  value  under any
         Contractual  Obligation  constituting  a part of the BEA Assets without
         fair and adequate consideration;

                  (f) has not experienced any work stoppage; and

                  (g) except in the ordinary course of business, has not entered
         into,  amended or  terminated  any Private  Authorizations  or Material
         Agreement constituting a part of the BEA Assets.

         3.18  Broker or Finder.  No Person  assisted  in or  brought  about the
negotiation  of this  Agreement or the  Transactions  in the capacity of broker,
agent or finder or in any similar capacity on behalf of BEA.


                                    ARTICLE 4

                      REPRESENTATIONS AND WARRANTIES OF ATS

         ATS  represents,  warrants and  covenants  to, and agrees with,  BEA as
follows:

         4.1  Organization  and  Business;   Power  and  Authority;   Effect  of
Transaction.

         (a) ATS is a corporation  duly organized,  validly existing and in good
standing  under  the  laws  of its  jurisdiction  of  incorporation  and has all
requisite  power and authority  (corporate and other) to own or hold under lease
its properties and to conduct its business as now conducted.

         (b) ATS has all  requisite  corporate  power  and  corporate  authority
necessary  to enable it to execute and deliver,  and to perform its  obligations
under,  this Agreement and each Collateral  Document  executed or required to be
executed by it pursuant hereto or thereto or to consummate the Transactions; and
the execution,  delivery and  performance of this Agreement and each  Collateral
Document  executed or  required to be executed by it pursuant  hereto or thereto
have been duly authorized by all requisite corporate or other action on the part
of ATS. This Agreement has been duly executed and delivered by ATS and

                                       -9-


<PAGE>



constitutes, and each Collateral Document executed or required to be executed by
it pursuant  hereto or thereto or to consummate the  Transactions  when executed
and delivered by ATS will constitute,  legal,  valid and binding  obligations of
ATS,  enforceable  in accordance  with their  respective  terms,  except as such
enforceability may be limited by bankruptcy,  moratorium, insolvency and similar
laws  affecting  the rights and remedies of  creditors  and the  obligations  of
debtors generally and by general principles of equity.

         (c) Except for matters which would have no material  adverse  effect on
ATS,  neither  the  execution  and  delivery  by ATS of  this  Agreement  or any
Collateral Document executed or required to be executed by it pursuant hereto or
thereto,  nor the consummation by ATS of the  Transactions,  nor compliance with
the terms, conditions and provisions hereof or thereof by ATS:

                  (i) will conflict with, or result in a breach or violation of,
         or  constitute  a default  under,  any  Organic  Document of ATS or any
         Applicable  Law on the part of ATS, or will conflict with, or result in
         a breach or violation of, or constitute a default under,  or permit the
         acceleration  of  any  obligation  or  liability  in,  or but  for  any
         requirement  of  giving  of notice  or  passage  of time or both  would
         constitute  such a conflict  with,  breach or violation  of, or default
         under, or permit any such  acceleration in, any Contractual  Obligation
         of ATS; or

                  (ii)  will  require  ATS to make or  obtain  any  Governmental
         Authorization,  Governmental Filing or Private Authorization  including
         without limitation under the FCA.

         4.2  Broker or  Finder.  No Person  assisted  in or  brought  about the
negotiation  of this  Agreement or the  Transactions  in the capacity of broker,
agent or finder or in any similar capacity on behalf of ATS.

         4.3 Solvency.  As of the execution and delivery of this Agreement,  ATS
is, and immediately  prior to and after giving effect to the consummation of the
Transactions will be, solvent.

         4.4 No Legal  Action.  There are no Legal  Actions  pending  or, to the
knowledge  of ATS,  threatened  against ATS or any of its  Affiliated  Entities,
officers  or  directors,  that  question  or may  affect  the  validity  of this
Agreement  or the  right  of ATS to  consummate  the  transactions  contemplated
hereunder.


                                    ARTICLE 5

                               CLOSING CONDITIONS

         5.1 Conditions to Obligations of Each Party to effect the Transactions.
The  respective  obligations  of each  party to effect the  Transactions  shall,
except as hereinafter  provided in this Section,  be subject to the satisfaction
at or prior to the Closing Date of the following conditions, any or all of which
may be waived, in whole or in part, to the extent permitted by Applicable Law:

                  (a) As of the Closing  Date,  no Legal Action shall be pending
         before or  threatened  in writing by any  Authority  seeking to enjoin,
         restrain,  prohibit or make illegal or to impose any materially adverse
         conditions in connection with, the consummation of the Transactions, it
         being understood and agreed that a written request by any Authority for
         information with respect to the  Transactions,  which information could
         be used in connection  with such Legal  Action,  shall not in itself be
         deemed to be a threat of any such Legal Action;

                  (b) All authorizations, consents, waivers, orders or approvals
         required  to  be  obtained  from  all  Authorities,  and  all  filings,
         submissions, registrations, notices or declarations required to be

                                      -10-


<PAGE>



         made by ATS and BEA with any Authority,  prior to the  consummation  of
         the  Transactions,  shall have been obtained  from,  and made with, all
         such Authorities,  except for such authorizations,  consents,  waivers,
         orders, approvals, filings, registrations,  notices or declarations the
         failure  to  obtain  or make  would  not,  in the  reasonable  business
         judgment of ATS,  have a material  adverse  effect on the BEA Assets or
         the BEA Business; and

                  (c) The transactions contemplated by the Other Agreement shall
         be consummated simultaneously with the Closing.

         5.2  Conditions to  Obligations of ATS. The obligation of ATS to effect
the  Transactions  shall  be  subject  to  the  satisfaction  of  the  following
conditions,  any or all of which  may be  waived,  in  whole or in part,  to the
extent permitted by Applicable Law:

                  (a) All agreements, certificates, opinions and other documents
         required to be delivered  pursuant to the  provisions of this Agreement
         shall be reasonably  satisfactory  in form,  scope and substance to ATS
         and its  counsel,  and ATS and its  counsel  shall  have  received  all
         information and copies of all documents, including records of corporate
         proceedings, which they may reasonably request in connection therewith,
         such documents where appropriate to be certified by proper  Authorities
         or corporate officers;

                  (b) BEA shall have  furnished  ATS and, at ATS'  request,  any
         bank or other  financial  institution  providing  credit to ATS, with a
         favorable  opinion,  dated  the  Closing  Date of  Bernkopf,  Goodman &
         Baseman  LP,  counsel  for BEA,  or  other  counsel  to BEA  reasonably
         acceptable  to ATS,  with  respect to the matters set forth in Sections
         3.1(a), (b) and (c) and 3.7(b) (to such counsel's knowledge);

                  (c) BEA shall have  furnished ATS with such  certificates  and
         other   documents   evidencing   the  truth  of  its   representations,
         warranties,  covenants  and  agreements  and  the  performance  of  its
         agreements or  conditions  as ATS or its counsel shall have  reasonably
         requested;

                  (d) BEA shall have  delivered  or cause to be delivered to ATS
         all of the  Collateral  Documents and other  agreements,  documents and
         instruments  required to be  delivered by BEA to ATS at or prior to the
         Closing pursuant to the terms of this Agreement;

                  (e) ATS  shall  have  received  advice  from  its  independent
         accountants  to the effect that,  if  requested by ATS, an  unqualified
         report (as to the scope of the audit,  access to the books and  records
         and  the  cooperation  of  management)  on  the  financial   statements
         (consisting  of  balance  sheets  for each of the  fiscal  years  ended
         December 31, 1995 and 1996 and  statements of operations  and cash flow
         for each of the three years in the period  ended  December 31, 1996) of
         the BEA Business in conformity  with GAAP and  Regulation S-X under the
         Securities Act could be prepared; and

                  (f) Each of the individuals  named therein shall have executed
         and   delivered  to  ATS  an  indemnity   agreement   (the   "Indemnity
         Agreement"),  in form, scope and substance  reasonably  satisfactory to
         ATS.

         5.3  Conditions to  Obligations of BEA. The obligation of BEA to effect
the  Transactions  shall  be  subject  to  the  satisfaction  of  the  following
conditions,  any or all of which  may be  waived,  in  whole or in part,  to the
extent permitted by Applicable Law:


                                      -11-


<PAGE>



                  (a) All agreements, certificates, opinions and other documents
         required to be delivered  pursuant to the  provisions of this Agreement
         shall be reasonably  satisfactory  in form,  scope and substance to BEA
         and its  counsel,  and BEA and its  counsel  shall  have  received  all
         information and copies of all documents, including records of corporate
         proceedings, which they may reasonably request in connection therewith,
         such documents where appropriate to be certified by proper  Authorities
         or corporate officers;

                  (b) ATS shall have  furnished BEA and, at BEA's  request,  any
         bank of other  financial  institution  providing  credit  to BEA,  with
         favorable opinions, dated the Closing Date of Sullivan & Worcester LLP,
         counsel for ATS,  with respect to the matters set forth in Sections 4.1
         and 4.4;

                  (c) ATS shall have  furnished BEA with such  certificates  and
         other   documents   evidencing   the  truth  of  its   representations,
         warranties,  covenants  and  agreements  and  the  performance  of  its
         agreements or  conditions  as BEA or its counsel shall have  reasonably
         requested; and

                  (d) ATS shall have  delivered  or cause to be delivered to BEA
         all of the  Collateral  Documents and other  agreements,  documents and
         instruments  required to be  delivered by ATS to BEA at or prior to the
         Closing pursuant to the terms of this Agreement.


                                    ARTICLE 6

                                 INDEMNIFICATION

         6.1  Survival.  The  representations  and  warranties  of  the  parties
contained  in or made  pursuant  to  Sections 3 and 4 of this  Agreement  or any
Collateral  Document shall survive the Closing and shall remain operative and in
full force and effect for a period of (a) one (1) year after the Closing Date or
(b) the  applicable  statute of  limitations  in the case of matters of a nature
referred  to in  Sections  3.1,  3.11,  3.12,  4.1 and  4.4,  regardless  of any
investigation or statement as to the results thereof made by or on behalf of any
party hereto.  The covenants and agreements of the parties  contained in or made
pursuant  to all of the  other  Sections  of this  Agreement  or any  Collateral
Document shall survive the Closing and shall remain  operative and in full force
and effect for the statute of limitations applicable to contractual obligations.
The term  "Indemnity  Period" shall mean the  applicable  period with respect to
which a representation,  warranty, covenant or agreement survives the Closing as
provided in this Section. Any Claim for indemnification,  no matter how arising,
not asserted by written notice to the Indemnifying Party prior to the expiration
of the  applicable  Indemnity  Period and for which  arbitration  for such Claim
pursuant to Section 7.14 of this  Agreement is not  commenced  within sixty (60)
days of said written notice shall be waived and of no force and effect.

         6.2  Indemnification.  Each of BEA and ATS (the  "Indemnifying  Party")
agrees that on and after the Closing it shall,  subject to survival  periods set
forth in Section 6.1,  indemnify and hold  harmless the other (the  "Indemnified
Party") from and against any and all damages, claims, losses,  expenses,  costs,
obligations and liabilities,  including without  limitation  liabilities for all
reasonable  attorneys',  accountants'  and experts' fees and expenses  including
those incurred to enforce the terms of this Agreement or any Collateral Document
executed by it (collectively,  "Loss and Expense" provided,  however,  that Loss
and  Expense  shall,  in the case of damages,  be limited to actual  damages and
shall  not  include  any  type of  punitive,  consequential  (including  without
limitation  loss  of  anticipated  profits)  or any  other  measure  of  damages
permitted by Applicable Law or otherwise),  suffered directly by the Indemnified
Party by reason of, or arising out of:


                                      -12-


<PAGE>



                  (a) any  breach  of  representation  or  warranty  made by the
         Indemnifying  Party  pursuant  to  this  Agreement  or  any  Collateral
         Document  executed  by it or any failure by the  Indemnifying  Party to
         perform or fulfill any of its  respective  covenants or agreements  set
         forth in this Agreement or any Collateral Document executed by it; or

                  (b) any  Legal  Action  or  other  Claim  by any  third  party
         relating  to the  Indemnifying  Party  or,  in the  case  of  ATS,  the
         ownership  or  operations  of the  BEA  Assets  or the  conduct  of the
         business of the BEA  Business to the extent such Legal  Action or other
         Claim has also  resulted in a breach of  representation  or warranty by
         the  Indemnifying  Party  pursuant to this  Agreement or any Collateral
         Document executed by it; or

                  (c) in the case of BEA as the  Indemnifying  Party,  by reason
         of, or  arising  out of,  (i) BEA  Nonassumed  Obligations  or (ii) the
         ownership and operation of the BEA Assets and the BEA Business prior to
         the Closing Date; or

                  (d) in the case of ATS as the  Indemnifying  Party,  by reason
         of,  or  arising  out  of,  (i) BEA  Assumed  Obligations  or (ii)  the
         ownership and operation of the BEA Assets and the BEA Business from and
         after the Closing Date,  except for Events arising prior to or existing
         on  the  Closing  Date,  unless  they  are  part  of  the  BEA  Assumed
         Obligations.

         6.3      Limitation of Liability.

         (a)  Notwithstanding  the provisions of Section 6.2, after the Closing,
except as otherwise provided in Section 6.6, each Indemnified  Party's rights to
indemnification  shall  be  subject  to  the  following  limitations:   (i)  the
Indemnified  Party  shall be entitled to recover its Loss and Expense in respect
of any Claim  only in the event  that the  aggregate  Loss and  Expense  for all
Claims exceeds, in the aggregate,  $25,000, in which event the Indemnified Party
shall be  entitled  to  recover  all such Loss and  Expense  (including  without
limitation  such  $25,000),  and (ii) in no event  shall  the  aggregate  amount
required to be paid by an Indemnifying  Party pursuant to the provisions of this
Article exceed  $500,000,  except for any Loss or Expense arising out of matters
of a nature  referred to in Sections 3.1 and 4.1 as to which the limitations set
forth in this clause (ii) shall not apply.

         (b) In the case any event shall occur  which  would  otherwise  entitle
either  party  to  assert a claim  for  indemnification  hereunder,  no Loss and
Expense  shall be deemed to have been  sustained  by such party to the extent of
any proceeds  received by such party from any  insurance  policies  with respect
thereto.

         6.4 Notice of Claims.  If an  Indemnified  Party  believes  that it has
suffered or incurred  any Loss and  Expense,  it shall  notify the  Indemnifying
Party promptly in writing,  and in any event within the  applicable  time period
specified in Section 6.1, describing such Loss and Expense,  all with reasonable
particularity  and containing a reference to the provisions of this Agreement in
respect of which such Loss and Expense shall have occurred.  If any Legal Action
is  instituted  by a third  party  with  respect to which an  Indemnified  Party
intends  to claim any  liability  or  expense  as Loss and  Expense  under  this
Article,  such Indemnified Party shall promptly notify the Indemnifying Party of
such Legal Action, but the failure to so notify the Indemnifying Party shall not
relieve such Indemnifying Party of its obligations under this Article, except to
the extent such failure to notify prejudices such  Indemnifying  Party's ability
to defend against such Claim.

         6.5 Defense of Third Party Claims.  The  Indemnifying  Party shall have
the right to  conduct  and  control,  through  counsel  of their  own  choosing,
reasonably  acceptable to the Indemnified Party, any third party Legal Action or
other Claim, but the Indemnified Party may, at its election,  participate in the
defense

                                      -13-


<PAGE>



thereof  at  its  sole  cost  and  expense;  provided,   however,  that  if  the
Indemnifying  Party shall fail to defend any such Legal  Action or other  Claim,
then the Indemnified Party may defend, through counsel of its own choosing, such
Legal Action or other Claim, and (so long as it gives the Indemnifying  Party at
least fifteen (15) days' notice of the terms of the proposed  settlement thereof
and permits the Indemnifying Party to then undertake the defense thereof) settle
such Legal Action or other Claim and recover the amount of such settlement or of
any  judgment  and the  reasonable  costs  and  expenses  of such  defense.  The
Indemnifying Party shall not compromise or settle any such Legal Action or other
Claim without the prior written consent of the Indemnified  Party, which consent
shall not  unreasonably  be withheld,  delayed or  conditioned  if the terms and
conditions of such compromise or settlement  proposed by the Indemnifying  Party
and agreed to in writing by the  claimant  in such Legal  Action or other  Claim
(the "Settlement  Proposal") (a) include a full release of the Indemnified Party
from the Legal  Action or other  Claim  which is the  subject of the  Settlement
Proposal,  and (b) if the  Indemnified  Party is ATS, do not include any term or
condition which would restrict in any material manner the continued ownership or
operations of the BEA Assets or the conduct of the BEA Business in substantially
the manner then being theretofore owned, operated and conducted by ATS.

         6.6 Exclusive Remedy.  Except for (a) fraud constituting  dishonesty or
willful or intentional gross  misrepresentation  or willful or intentional gross
breach of warranty,  covenant or agreement;  provided,  however,  that any Claim
with respect to fraud  constituting  dishonesty or willful or intentional  gross
misrepresentation  or willful or intentional gross breach of warranty,  covenant
or agreement, no matter how arising, not asserted by written notice to the party
alleged  to have  committed  the  same  prior  to May  21,  1999  and for  which
arbitration  with  respect  to  such  Claim  pursuant  to  Section  7.14 of this
Agreement is not commenced  within sixty (60) days of said written  notice shall
be waived and of no force and effect; or (b) specific performance and injunctive
relief as provided in Section 7.5, the indemnification  provided in this Article
shall be the sole and exclusive  post-Closing  remedy  available to either party
against the other party for any Claim under this Agreement.


                                    ARTICLE 7

                               GENERAL PROVISIONS


         7.1  Amendment.  This Agreement may be amended from time to time by the
parties  hereto at any time prior to the Closing Date but only by an  instrument
in writing signed by the parties hereto.

         7.2 Waiver. At any time prior to the Closing Date, except to the extent
not  permitted  by  Applicable  Law,  ATS or BEA may  extend  the  time  for the
performance  of any of the  obligations  or other  acts of the  other,  subject,
however,  to the  provisions  with respect to the  Termination  Date,  waive any
inaccuracies in the representations and warranties of the other contained herein
or in any document  delivered pursuant hereto, and waive compliance by the other
with any of the agreements,  covenants or conditions  contained herein. Any such
extension or waiver shall be valid only if set forth in an instrument in writing
signed by the party or parties to be bound thereby.

         7.3 Fees, Expenses and Other Payments.  All costs and expenses incurred
in connection  with this  Agreement and the  consummation  of the  Transactions,
including  without  limitation  fees and  disbursements  of  counsel,  financial
advisors and accountants  incurred by the parties hereto,  shall be borne solely
and entirely by the party which has incurred such costs and expenses.

         7.4  Notices.  All  notices  and  other  communications  which  by  any
provision of this Agreement are required or permitted to be given shall be given
in writing and shall be (a) mailed by first-class or express

                                      -14-


<PAGE>



mail, or by recognized  courier  service,  postage  prepaid,  (b) sent by telex,
telegram, telecopy or other form of rapid transmission, confirmed by mailing (by
first class or express mail, or by recognized courier service,  postage prepaid)
written  confirmation at substantially the same time as such rapid transmission,
or (c)  personally  delivered  to the  receiving  party  (which if other than an
individual  shall be an  officer  or other  responsible  party of the  receiving
party). All such notices and communications  shall be mailed,  sent or delivered
as follows:

         (a)      If to ATS:

                  116 Huntington Avenue
                  Boston, Massachusetts 02116
                  Attention:   Joseph L. Winn, Chief Financial Officer
                  Telecopier No.:  (617) 375-7575

                  with a copy to:

                  Sullivan & Worcester LLP
                  One Post Office Square
                  Boston, Massachusetts 02109
                  Attention:  Norman A. Bikales, Esq.
                  Telecopier No.:  (617) 338-2880

         (b)      If to BEA:

                  23 Hampden Drive
                  Norwood, Massachusetts 02062
                  Attention: David Burnett or Paul Ehrlich
                  Telecopier No.: (617) 551-0546

                  with a copy to:

                  D'Agostine, Levine & Gordon, P.C.
                  268 Main Street
                  Acton, Massachusetts 01720
                  Attention: Louis N. Levine, Esq.
                  Telecopier No.: (508) 264-4868

or to such other person(s),  telex or facsimile  number(s) or address(es) as the
party to receive any such communication or notice may have designated by written
notice to the other party.

         7.5  Specific  Performance;  Other  Rights  and  Remedies.  Each  party
recognizes and agrees that in the event the other party should refuse to perform
any of its  obligations  under this  Agreement or any Collateral  Document,  the
remedy at law would be inadequate and agrees that for breach of such provisions,
each party shall,  in addition to such other  remedies as may be available to it
at law or in equity,  be entitled to injunctive relief and to enforce its rights
by an action for specific performance to the extent permitted by Applicable Law.
The parties agree that the dispute  underlying Claims of any action for specific
performance shall be decided by arbitration in accordance with the provisions of
Section 7.14. All actions for injunctive relief,  specific  performance or other
relief shall be determined in  accordance  with the governing law  provisions of
Section 7.9.  Nothing herein  contained  shall be construed as prohibiting  each
party  from  pursuing  any  other  remedies  available  to it  pursuant  to  the
provisions of and subject to the limitations

                                      -15-


<PAGE>



contained   in  this   Agreement   for  such   breach  or   threatened   breach.
Notwithstanding  the  foregoing  or  any  provision  of  this  Agreement  to the
contrary,  after  the  Closing  Date  ATS  shall  not be  entitled  to  specific
performance  or any other remedy to the extent that the cost to BEA arising from
the  enforcement  or  exercise  of such  remedy  would  exceed the amount of the
indemnification  required by Section 6.3, for all costs and expenses incurred in
connection with its  performance of or compliance  with the remedy  exercised or
enforced.

         7.6  Severability.  If any term or provision of this Agreement shall be
held or deemed  to be, or shall in fact be,  invalid,  inoperative,  illegal  or
unenforceable  as  applied  to  any  particular  case  in  any  jurisdiction  or
jurisdictions,  or in  all  jurisdictions  or  in  all  cases,  because  of  the
conflicting of any provision with any  constitution or statute or rule of public
policy or for any other reason,  such circumstance  shall not have the effect of
rendering the provision or provisions in question invalid, inoperative,  illegal
or unenforceable in any other  jurisdiction or in any other case or circumstance
or of rendering any other  provision or  provisions  herein  contained  invalid,
inoperative,  illegal or  unenforceable to the extent that such other provisions
are not themselves actually in conflict with such constitution,  statute or rule
of public policy, but this Agreement shall be reformed and construed in any such
jurisdiction or case as if such invalid,  inoperative,  illegal or unenforceable
provision had never been contained herein and such provision reformed so that it
would be valid,  operative and  enforceable to the maximum  extent  permitted in
such jurisdiction or in such case.  Notwithstanding the foregoing,  in the event
of any such  determination  the  effect  of which is to  affect  materially  and
adversely either party, the parties shall negotiate in good faith to modify this
Agreement  so as to effect  the  original  intent of the  parties  as closely as
possible to the fullest  extent  permitted by  Applicable  Law in an  acceptable
manner to the end that the  Transactions  are fulfilled and  consummated  to the
maximum extent possible.

         7.7   Counterparts.   This   Agreement   may  be  executed  in  several
counterparts,  each of  which  shall be  deemed  an  original,  but all of which
together shall constitute one and the same  instrument,  binding upon all of the
parties. In pleading or proving any provision of this Agreement, it shall not be
necessary to produce more than one of such counterparts.

         7.8 Section Headings.  The headings contained in this Agreement are for
reference  purposes  only  and  shall  not in any  way  affect  the  meaning  or
interpretation of this Agreement.

         7.9  Governing  Law. The  validity,  interpretation,  construction  and
performance of this Agreement  shall be governed by, and construed in accordance
with,  the  applicable  laws of the United States of America and the laws of the
Commonwealth of Massachusetts applicable to contracts made and performed in such
State and, in any event, without giving effect to any choice or conflict of laws
provision or rule that would cause the application of domestic  substantive laws
of  any  other  jurisdiction.   Anything  in  this  Agreement  to  the  contrary
notwithstanding,  including  without  limitation the provisions of Article 6, in
the event of any dispute  between the parties  which  results in a Legal Action,
the prevailing party shall be entitled to receive from the non-prevailing  party
reimbursement for reasonable legal fees and expenses incurred by such prevailing
party in such Legal  Action.  In the event of any Legal Action among the parties
arising out of this  Agreement,  the  parties  agree to submit the matter to the
appropriate state or federal court sitting in Suffolk County,  Massachusetts and
the parties agree to submit to the jurisdiction of such courts.

         7.10 Further Acts. Each party agrees that at any time, and from time to
time, before and after the consummation of the transactions contemplated by this
Agreement,  it  will do all  such  things  and  execute  and  deliver  all  such
Collateral  Documents  and other  assurances,  as any other party or its counsel
reasonably  deems  necessary  or  desirable  in order to carry out the terms and
conditions of this  Agreement  and the  transactions  contemplated  hereby or to
facilitate  the enjoyment of any of the rights  created  hereby or to be created
hereunder.

                                      -16-


<PAGE>




         7.11 Entire Agreement. This Agreement (together with the BEA Disclosure
Schedule and the other Collateral  Documents delivered in connection  herewith),
constitutes  the  entire  agreement  of the  parties  and  supersedes  all prior
agreements and undertakings,  both written and oral,  between the parties,  with
respect to the subject matter hereof,  including without limitation that certain
letter of intent, dated March 6, 1997, between the parties. The parties have not
made or relied upon any warranties or representations  except those specifically
set forth in this Agreement.

         7.12 Assignment. This Agreement shall not be assignable by either party
and any such  assignment  shall be null and void,  except that it shall inure to
the benefit of and by binding  upon any  successor  to any party by operation of
law,  including by way of merger,  consolidation or sale of all or substantially
all of its assets,  and ATS may assign its rights and remedies  hereunder to any
bank or other financial institution which has loaned funds or otherwise extended
credit to it.

         7.13  Parties in  Interest.  This  Agreement  shall be binding upon and
inure  solely to the  benefit of each  party,  and  nothing  in this  Agreement,
express or implied,  is  intended to or shall  confer upon any Person any right,
benefit or remedy of any nature whatsoever under or by reason of this Agreement,
except as otherwise provided in Section 7.12.

         7.14  Arbitration.  Subject to the provisions of Section 2.2(d) and the
right to seek injunctive relief and specific  performance in accordance with the
provisions  of Section 7.5 which shall take  precedence  over the  provisions of
this  Section,  any  controversy  or claim  arising  out of or  relating to this
Agreement,  or the  breach  thereof,  shall  be  determined  by  arbitration  in
accordance  with  the  governing  law  provisions  of  Section  7.9 and the then
existing commercial  arbitration rules of the American  Arbitration  Association
before a panel of three  (3)  arbitrators  in  Boston,  Massachusetts,  selected
within  thirty  (30) days of the  commencement  of such  arbitration,  with each
participant selecting one arbitrator and the two so selected selecting the third
(or  the  third  being  selected  by the  American  Arbitration  Association  if
agreement on a third is not reached  within  thirty (30) days);  and the parties
hereto agree that any judgment or award rendered by such arbitrators  shall be a
final and binding  determination as to such matter or matters and may be entered
in any court having jurisdiction thereof; provided, however, that in the case of
damages,  the  parties  shall,  except  in  the  case  of a  fraud  constituting
dishonesty  or  willful or  intentional  gross  misrepresentation  or willful or
intentional  gross  breach of  warranty,  covenant or  agreement,  be limited to
actual damages and shall not be entitled to any type of punitive,  consequential
(including without limitation loss of anticipated  profits) or any other measure
of damages permitted by Applicable Law or otherwise. The arbitrators shall award
fees and  expenses  (including  reasonable  attorney  fees and  expenses) to the
prevailing party or, if they determine there is no prevailing party, as they may
otherwise determine.

         7.15 Mutual Drafting. This Agreement is the result of the joint efforts
of BEA and ATS,  and  each  provision  hereof  has been  subject  to the  mutual
consultation,  negotiation  and  agreement  of the parties and there shall be no
construction  against  either  party based on any  presumption  of that  party's
involvement in the drafting thereof.




                                      -17-


<PAGE>



         IN  WITNESS  WHEREOF,  ATS and BEA have  caused  this  Agreement  to be
executed  as of the  date  first  written  above by  their  respective  officers
thereunto duly authorized.

                          American Tower Systems, Inc.


                          By:_____________________________________
                               Name:
                               Title:

                          B & E Associates, Inc.


                          By:______________________________________
                               Name:
                               Title:




                                      -18-


<PAGE>



                                                            APPENDIX A

                                   DEFINITIONS

         As used in this Agreement,  unless the context otherwise requires,  the
following  terms  (or any  variant  in the  form  thereof)  have  the  following
respective  meanings.  Terms  defined in the  singular  shall have a  comparable
meaning when used in the plural, and vice versa, and the reference to any gender
shall be deemed to include all genders.  Unless otherwise defined or the context
otherwise clearly  requires,  terms for which meanings are provided herein shall
have such meanings when used in the BEA Disclosure Schedule, and each Collateral
Document  executed  or required  to be  executed  pursuant  hereto or thereto or
otherwise delivered,  from time to time, pursuant hereto or thereto.  References
to "hereof", "herein" or similar terms are intended to refer to the Agreement as
a whole and not a  particular  Section,  and  references  to "this  Section" are
intended to refer to the entire Section and not a particular subsection thereof.
The term "either party" shall, unless the context otherwise  requires,  refer to
BEA and ATS.

         Acceptance Notice shall have the meaning given to it in Section 2.2(c).

         Accounts Receivable shall mean (a) any and all rights to the payment of
money or other forms of  consideration  of any kind at any time now or hereafter
owing or to be owing to BEA  attributable  to the  ownership or operation of the
BEA Business (whether  classified under the Uniform Commercial Code of any state
as accounts,  contract rights, chattel paper, general intangibles or otherwise),
including  without  limitation  accounts  receivable,  letters of credit and the
right to receive payment thereunder, chattel paper, insurance proceeds, contract
rights, notes, drafts, instruments, documents, acceptances, and all other debts,
obligations  and  liabilities  in whatever form now or hereafter  owing from any
other Person, all guarantees, security and Liens for the payment of any thereof,
and all of BEA's  rights  to  goods,  now  owned  or  hereafter  acquired,  sold
(delivered,  undelivered,  in  transit  or  returned)  which may be  represented
thereby; and (b) all proceeds of any of the foregoing.

         adverse,  adversely, when used alone or in conjunction with other terms
(including  without  limitation  "affect," "change" and "effect") shall mean any
Event which is reasonably likely, in the reasonable business judgment of ATS, to
be expected to (a)  adversely  affect the  validity  or  enforceability  of this
Agreement  or  the  likelihood  of  consummation  of  the  Transactions,  or (b)
adversely affect the business, operations,  management, properties or prospects,
or the  condition,  financial  or other,  or  results  of  operation  of the BEA
Business, or (c) impair BEA's ability to fulfill its obligations under the terms
of this Agreement,  or (d) adversely affect the aggregate rights and remedies of
ATS under this Agreement.  Notwithstanding  the foregoing,  and anything in this
Agreement to the contrary  notwithstanding,  any Event  generally  affecting the
economy or the tower  communications  business shall not be deemed to constitute
such a change, affect or effect.

         Affiliate,  Affiliated shall mean, with respect to any Person,  (a) any
other Person at the time  directly or indirectly  controlling,  controlled by or
under direct or indirect  common control with such Person,  (b) any other Person
of which such Person at the time owns, or has the right to acquire,  directly or
indirectly,  twenty  percent  (20%) or more of any class of the capital stock or
beneficial  interest,  (c) any other Person  which at the time owns,  or has the
right to acquire,  directly or  indirectly,  twenty percent (20%) or more of any
class of the  capital  stock or  beneficial  interest  of such  Person,  (d) any
executive  officer  or  director  of  such  Person,  (e)  with  respect  to  any
partnership,  joint venture or similar Entity, any general partner thereof,  and
(f) when used with respect to an  individual,  shall  include any member of such
individual's immediate family or a family trust.


                                       A-1


<PAGE>



         Agreement shall mean this Agreement as originally in effect, including,
unless the context  otherwise  specifically  requires,  this Appendix A, the BEA
Disclosure  Schedule  and all exhibits  hereto,  and as any of the same may from
time to time be supplemented, amended, modified or restated in the manner herein
or therein provided.

         Applicable Law shall mean any Law of any Authority, whether domestic or
foreign,  including  without  limitation  the  FCA  and all  federal  and  state
securities and  Environmental  Laws, to which a Person is subject or by which it
or any of its business or operations is subject or any of its property or assets
is bound.

         Assets shall mean the business and the tangible and  intangible  assets
used in  connection  with the conduct of the business or  operations  of the BEA
Business,  which  business  and  assets  are  being  exchanged,  transferred  or
otherwise conveyed hereunder, which are the following:

                  (a) the Private Authorizations;

                  (b) the Contracts (other than the BEA Nonassumed Obligations);

                  (c)  all   Intellectual   Property   and   other   proprietary
         information,  which  relate  to the  BEA  Business,  including  without
         limitation,  technical  information  and data,  machinery and equipment
         warranties, maps, computer discs and tapes, plans, diagrams, blueprints
         and schematics,  including filings with all Authorities which relate to
         the BEA Business;

                  (d) all claims,  choses in action and rights under  warranties
         relating to the BEA Business or any of the BEA Assets;

                  (e)  all  books  and  records  relating  to the  ownership  or
         operation  of the  BEA  Assets  or the  conduct  of the  BEA  Business,
         including  executed  copies of Material  Agreements  and other  written
         Contracts,  and all  records  required  by  Applicable  Law to be kept,
         subject  to the right of the  conveying  party to have  such  books and
         records  made  available  to it for  such  time  as  may be  reasonably
         required in connection with audits, defense or prosecution of lawsuits,
         or other legitimate  business  purposes.  The records  described herein
         shall not  include  corporate  seals,  certificates  of  incorporation,
         minute books,  stock books,  tax returns or other records  having to do
         with the corporate organization of BEA; and

                  (f)  any  and all  products,  profits  and  proceeds  of,  and
         including  without  limitation  any Claims with  respect to, any of the
         foregoing.

         ATS shall have the meaning given to it in the Preamble.

         Authority shall mean any governmental or quasi-governmental  authority,
whether  administrative,  executive,  judicial,  legislative  or  other,  or any
combination   thereof,   including  without   limitation  any  federal,   state,
territorial,   county,   municipal  or  other   government  or  governmental  or
quasi-governmental agency, arbitrator,  authority,  board, body, branch, bureau,
central bank or comparable  agency or Entity,  commission,  corporation,  court,
department,  instrumentality,  master, mediator, panel, referee, system or other
political unit or  subdivision or other Entity of any of the foregoing,  whether
domestic or foreign., including without limitation the FCC.

         BEA shall have the meaning given to it in the Preamble.

         BEA Assets shall have the meaning given to it in Section 2.1.

                                       A-2


<PAGE>



         BEA Assumable  Agreements shall mean all obligations and liabilities of
BEA under all Leases, Material Agreements, Governmental Authorizations,  Private
Authorizations  and other  Contractual  Obligations not required to be listed on
Section 3.16 of the BEA Disclosure  Schedule entered into in the ordinary course
of business and relating to the  ownership or operation of any of the BEA Assets
or the
conduct of the BEA Business.

         BEA Assumed  Obligations  shall have the meaning given to it in Section
2.2(b).

         BEA  Business  shall have the meaning  given them in the first  Whereas
paragraph.

         BEA Disclosure Schedule shall mean the BEA Disclosure Schedule dated as
of the date of this Agreement delivered by BEA to ATS.

         BEA Employees shall have the meaning given it in the Section 3.15.

         BEA  Nonassumed  Obligations  shall  have  the  meaning  given to it in
Section 2.2(b).

         BEA Statements shall have the meaning given to it in Section 3.2(b).

         BEA's  knowledge  means the actual  knowledge  of any officer or senior
manager of BEA, as such  knowledge  exists on the date of this  Agreement and no
later date, after reasonable review of BEA's records.

         Benefit Arrangement shall mean any material benefit arrangement that is
not a Plan,  including  (a)  any  employment  or  consulting  agreement  (b) any
arrangement providing for insurance coverage or workers' compensation  benefits,
(c) any  incentive  bonus or deferred  bonus  arrangement,  (d) any  arrangement
providing termination  allowance,  severance or similar benefits, (e) any equity
compensation plan, (f) any deferred  compensation plan, and (g) any compensation
policy and  practice,  but only to the  extent  that it covers or relates to any
officer, employee or other Person involved in the ownership and operation of the
Assets or the conduct of the business of the BEA Business.

         Claims shall mean any and all debts, liabilities,  obligations, losses,
damages,  deficiencies,  assessments  and  penalties,  together  with all  Legal
Actions, pending or threatened, claims and judgments of whatever kind and nature
relating  thereto,  and all fees, costs,  expenses and disbursements  (including
without  limitation  reasonable  attorneys'  and  other  legal  fees,  costs and
expenses) relating to any of the foregoing.

         Closing shall have the meaning given to it in Section 2.3.

         Closing Date shall have the meaning given to it in Section 2.3.

         COBRA shall mean the Consolidated Omnibus Budget  Reconciliation Act of
1985,  as  amended,  as set  forth  in  Section  4980B of the Code and Part 6 of
Subtitle B of Title I of ERISA.

         Code shall mean the Internal  Revenue  Code of 1986,  and the rules and
regulations  thereunder,  all as from time to time in effect,  or any  successor
law,  rules or  regulations,  and any  reference to any  statutory or regulatory
provision  shall be deemed  to be a  reference  to any  successor  statutory  or
regulatory provision.

         Collateral Document shall mean the Indemnity Agreement,  bills of sale,
assignments  of  intangibles,  assumption  agreements  with  respect  to the BEA
Assumed Obligations,  other instruments of conveyance and assignment  sufficient
to vest in ATS title to all of the other BEA  Assets and the BEA  Business,  and
any other

                                       A-3


<PAGE>



agreement, certificate,  contract, instrument, notice, opinion or other document
delivered  pursuant  to the  provisions  of  this  Agreement  or any  Collateral
Document.

         Collection Period shall have the meaning given to it in Section 2.4.

         Contract, Contractual Obligation shall mean any agreement, arrangement,
commitment,  contract, covenant,  indemnity,  undertaking or other obligation or
liability  which  involves  the  ownership or operation of the BEA Assets or the
conduct of the BEA Business.

         Control (including the terms  "controlled,"  "controlled by" and "under
common control with") means the possession, directly or indirectly or as trustee
or executor,  of the power to direct or cause the direction of the management or
policies of a Person,  or the disposition of such Person's assets or properties,
whether through the ownership of stock, equity or other ownership,  by contract,
arrangement or understanding,  or as trustee or executor,  by contract or credit
arrangement or otherwise.

         Employment Arrangement shall mean, with respect to BEA, any employment,
consulting,   retainer,   severance  or  similar  contract,   agreement,   plan,
arrangement or policy  (exclusive of any which is terminable  within thirty (30)
days without liability, penalty or payment of any kind by BEA or any Affiliate),
or providing for severance,  termination payments, insurance coverage (including
any self-insured arrangements), workers compensation, disability benefits, life,
health, medical, dental or hospitalization  benefits,  supplemental unemployment
benefits, vacation or sick leave benefits, pension or retirement benefits or for
deferred compensation, profit-sharing, bonuses, stock options, stock purchase or
appreciation rights or other forms of incentive  compensation or post-retirement
insurance,  compensation or post-retirement insurance, compensation or benefits,
or any collective bargaining or other labor agreement, whether or not any of the
foregoing is subject to the provisions of ERISA,  but only to the extent that it
covers or relates to any  officer,  employee  or other  Person  involved  in the
ownership or operation of the BEA Assets or the conduct of the BEA Business.

         Encumber  shall  mean  to  suffer,  accept,  agree  to  or  permit  the
imposition of a Lien.

         Entity shall mean any corporation,  firm, unincorporated  organization,
association,  partnership,  limited  liability  company,  trust  (inter vivos or
testamentary),  estate of a deceased, insane or incompetent individual, business
trust,  joint stock  company,  joint  venture or other  organization,  entity or
business,  whether acting in an individual,  fiduciary or other capacity, or any
Authority.

         Environmental Law shall mean any Law relating to or otherwise  imposing
liability or  standards of conduct  concerning  pollution or  protection  of the
environment,   including   without   limitation   Laws  relating  to  emissions,
discharges,  releases or  threatened  releases of  Hazardous  Materials or other
chemicals or  industrial  pollutants,  substances,  materials or wastes into the
environment (including,  without limitation,  ambient air, surface water, ground
water,  mining or reclamation or mined land, land surface or subsurface  strata)
or otherwise relating to the manufacture,  processing, generation, distribution,
use, treatment, storage, disposal, cleanup, transport or handling of pollutants,
contaminants,  chemicals or industrial, toxic or hazardous substances, materials
or wastes. Environmental Laws shall include without limitation the Comprehensive
Environmental  Response,  Compensation and Liability Act (42 U.S.C. Section 6901
et seq.), the Hazardous Material  Transportation Act (49 U.S.C.  Section 1801 et
seq.),  the Resource  Conservation  and Recovery Act (42 U.S.C.  Section 6901 et
seq.), the Federal Water Pollution Control Act (33 U.S.C. Section 1251 et seq.),
the Clean Air Act (42 U.S.C. Section 7401 et seq.), the Toxic Substances Control
Act (15 U.S.C. Section 2601 et seq.), the Occupational Safety and Health Act (29
U.S.C.  Section 651 et seq.), the Federal Insecticide  Fungicide and Rodenticide
Act (7  U.S.C.  Section  136 et  seq.),  and  the  Surface  Mining  Control  and
Reclamation  Act of 1977 (30 U.S.C.  Section  1201 et seq.),  and any  analogous
federal, state, local

                                       A-4


<PAGE>



or foreign,  Laws, and the rules and regulations  promulgated  thereunder all as
from time to time in effect,  and any  reference to any  statutory or regulatory
provision  shall be deemed  to be a  reference  to any  successor  statutory  or
regulatory provision.

         Environmental Permit shall mean any Governmental Authorization required
by or pursuant to any Environmental Law.

         ERISA shall mean the Employee  Retirement  Income Security Act of 1974,
and the rules and regulations thereunder, all as from time to time in effect, or
any successor law, rules or  regulations,  and any reference to any statutory or
regulatory  provision  shall  be  deemed  to be a  reference  to  any  successor
statutory or regulatory provision.

         ERISA  Affiliate  shall  mean any  Person  that is  treated as a single
employer with BEA under Sections 414(b),  (c), (m) or (o) of the Code or Section
4001(b)(1) of ERISA.

         Event  shall  mean the  existence  or  occurrence  of any act,  action,
activity,  circumstance,  condition,  event,  fact,  failure  to act,  omission,
incident or practice, or any set or combination of any of the foregoing.

         FCA  shall  mean the  Communication  Act of  1934,  and the  rules  and
regulations  thereunder,  all as from time to time in effect,  or any  successor
law,  rules or  regulations,  and any  reference to any  statutory or regulatory
provision  shall be deemed  to be a  reference  to any  successor  statutory  or
regulatory provision.

         FCC shall mean the Federal Communications  Commission and shall include
any successor Authority.

         GAAP shall mean means,  except to the extent that a deviation therefrom
is expressly required by this Agreement, such principles applied on a consistent
basis,  (i) as set forth in Opinions of the Accounting  Principles  Board of the
American  Institute  of  Certified  Public   Accountants   ("AICPA")  and/or  in
statements of the Financial  Accounting  Standards  Board that are applicable in
the  circumstances as of the date in question,  (ii) when not inconsistent  with
such  opinions  and  statements,  as set forth in other AICPA  publications  and
guidelines  and/or  (iii)  that  otherwise  arise by custom  for the  particular
industry, all as the same shall exist on the date of this Agreement.

         Governmental  Authorizations  shall  mean all  approvals,  concessions,
consents,   franchises,   licenses,  permits,  plans,  registrations  and  other
authorizations  of all  Authorities,  including  without  limitation  the United
States Forest  Service and the Federal  Aviation  Administration,  in connection
with the  ownership  or  operation  of the BEA Assets or the  conduct of the BEA
Business.

         Governmental  Filings shall mean all filings,  including  franchise and
similar Tax  filings,  and the payment of all fees,  assessments,  interest  and
penalties associated with such filings, with all Authorities.

         Hazardous  Materials  shall mean and include any  substance,  material,
waste, constituent, compound, chemical, natural or man-made element or force (in
whatever state of matter):  (a) the presence of which requires  investigation or
remediation under any Environmental  Law, or (b) that is defined as a "hazardous
waste" or  "hazardous  substance"  under any  Environmental  Law; or (c) that is
toxic, explosive,  corrosive,  etiologic,  flammable,  infectious,  radioactive,
carcinogenic,   mutagenic  or  otherwise  hazardous  and  is  regulated  by  any
applicable Authority or subject to any Environmental Law; or (d) the presence of
which on the real property owned or leased by such Person causes or threatens to
cause a nuisance upon any such real property or to adjacent  properties or poses
or threatens to pose a hazard to the health or safety of persons on or about any
such real property;  or (e) the presence of which on adjacent  properties  could
constitute a trespass by such Person; or (f) that contains gasoline, diesel fuel
or other petroleum hydrocarbons, or any by-products or

                                       A-5


<PAGE>



fractions  thereof,   natural  gas,   polychlorinated   biphenyls  ("PCBs")  and
PCB-containing  equipment,   radon  or  other  radioactive  elements,   ionizing
radiation,  electromagnetic  field radiation and other  non-ionizing  radiation,
sonic forces and other natural  forces,  lead,  asbestos or  asbestos-containing
materials ("ACM"), or urea formaldehyde foam insulation.

         Indebtedness  shall mean,  with  respect to any Person,  (a) all items,
except  items of  capital  stock or of  surplus  or of  general  contingency  or
deferred tax reserves or any minority  interest in any Subsidiary of such Person
to the extent such interest is treated as a liability with indeterminate term on
the  consolidated  balance sheet of such Person,  which in accordance  with GAAP
would be included in  determining  total  liabilities  as shown on the liability
side of a balance sheet of such Person, (b) all obligations  secured by any Lien
to which any property or asset owned or held by such Person is subject,  whether
or not the obligation  secured  thereby shall have been assumed,  and (c) to the
extent not  otherwise  included,  all  Contractual  Obligations  of such  Person
constituting  capitalized leases and all obligations of such Person with respect
to Leases constituting part of a sale and leaseback arrangement.

         Indebtedness  for Money Borrowed shall mean, with respect to BEA, money
borrowed  and  Indebtedness  represented  by notes  payable and drafts  accepted
representing   extensions  of  credit,  all  obligations   evidenced  by  bonds,
debentures,  notes or other similar instruments, the maximum amount currently or
at any time thereafter  available to be drawn under all  outstanding  letters of
credit  issued  for the  account of such  Person,  all  Indebtedness  upon which
interest  charges are  customarily  paid by such  Person,  and all  Indebtedness
(including  capitalized lease obligations)  issued or assumed as full or partial
payment  for  property  or  services,  whether  or not any such  notes,  drafts,
obligations or Indebtedness represent Indebtedness for money borrowed, but shall
not include (a) trade payables,  (b) expenses  accrued in the ordinary course of
business,  (c) customer advance payments and customer  deposits  received in the
ordinary course of business,  or (d) conditional sales agreements not prohibited
by the terms of this Agreement.

         Indemnity  Agreement  shall  have the  meaning  given to it in  Section
5.2(h).

         Intangible  Assets shall mean all assets and property  lacking physical
properties the evidence of ownership of which must  customarily be maintained by
independent  registration,  documentation,  certification,  recordation or other
means,  and  shall  include,   without  limitation,   concessions,   copyrights,
franchises,  license, patents, permits, service marks, trademarks,  trade names,
and applications with respect to any of the foregoing, technology and know-how.

         Intellectual  Property  shall  mean  the  following,   but  solely  and
exclusively to the extent it relates to the BEA Business, and not otherwise: any
and all research, information,  inventions,  designs, procedures,  developments,
discoveries,  improvements,  patents and applications  therefor,  trademarks and
applications therefor,  service marks, trade names,  copyrights and applications
therefor,    logos,   trade   secrets,   drawing,   plans,   systems,   methods,
specifications,  computer  software  programs,  tapes,  discs and  related  data
processing software (including without limitation object and source codes) owned
by  such  Person  or in  which  it has  an  ownership  interest  and  all  other
manufacturing,   engineering,  technical,  research  and  development  data  and
know-how made, conceived, developed and/or acquired by such Person, which relate
to the manufacture,  production or processing of any products  developed or sold
by such  Person or which are  within the scope of or usable in  connection  with
such Person's  business as it may, from time to time,  hereafter be conducted or
proposed to be conducted.

         Law shall mean any (a) administrative,  judicial,  legislative or other
action,  code,  consent  decree,  constitution,  decree,  directive,  enactment,
finding, guideline, law, injunction, interpretation, judgment, order, ordinance,
policy statement,  proclamation,  promulgation,  regulation,  requirement, rule,
rule of law, rule of public policy,  settlement  agreement,  statute, or writ of
any Authority, domestic or foreign; (b) the common

                                       A-6


<PAGE>



law, or other legal or quasi-legal precedent; or (c) arbitrator's, mediator's or
referee's award, decision,  finding or recommendation;  including,  in each such
case or instance, any interpretation,  directive,  guideline or request, whether
or not having the force of law including,  in all cases,  without limitation any
particular section, part or provision thereof.

         Lease  shall mean any lease of  property,  whether  real,  personal  or
mixed, and all amendments thereto.

         Legal  Action  shall  mean,  with  respect to any  Person,  any and all
litigation   or   legal   or   other   actions,   arbitrations,   counterclaims,
investigations, proceedings, requests for material information by or pursuant to
the  order of any  Authority  or  suits,  at law or in  arbitration,  equity  or
admiralty,  whether or not  purported  to be  brought on behalf of such  Person,
affecting such Person or any of such Person's business, property or assets.

         Lien shall mean any of the  following:  mortgage;  lien  (statutory  or
other);  or other security  agreement,  arrangement or interest;  hypothecation,
pledge  or  other  deposit  arrangement;  assignment;  charge;  levy;  executory
seizure;   attachment;   garnishment;   encumbrance   (including  any  easement,
exception,  reservation or limitation,  right of way, and the like); conditional
sale,  title  retention  or other  similar  agreement,  arrangement,  device  or
restriction;   preemptive  or  similar  right;  any  financing  lease  involving
substantially  the same economic  effect as any of the foregoing;  the filing of
any financing  statement under the Uniform  Commercial Code or comparable law of
any  jurisdiction;  restriction on sale,  transfer,  assignment,  disposition or
other alienation; or any option, equity, claim or right of or obligation to, any
other Person, of whatever kind and character.

         Loss and Expense shall have the meaning given to it in Section 6.2.

         material, materially or materiality for the purposes of this Agreement,
shall, unless specifically stated to the contrary,  be determined without regard
to the fact that various  provisions of this Agreement set forth specific dollar
amounts.

         Material  Agreement  shall mean,  with respect to BEA, any  Contractual
Obligation  which (a) was not entered into in the  ordinary  course of business,
(b) was entered into in the ordinary  course of business  which (i) involved the
purchase,  sale or lease  of  goods  or  materials,  or  purchase  of  services,
aggregating  more than $20,000  during any of the last three fiscal years,  (ii)
extends for more than three (3)  months,  or (iii) is not  terminable  on thirty
(30) days or less  notice  without  penalty  or other  payment,  (c)  involves a
capitalized  lease  obligation or  Indebtedness  for Money  Borrowed,  (d) is or
otherwise   constitutes   a   written   agency,   broker,    dealer,    license,
distributorship,   sales  representative  or  similar  written  agreement,   (e)
accounted  for more than three  percent (3%) of the revenues of the BEA Business
in any of the last  three  fiscal  years or is likely to  account  for more than
three  percent  (3%) of revenues of the BEA Business  during the current  fiscal
year,  (f) is with the United States Forest Service or any other  Authority,  or
(g)  involves  the  management  by BEA of any  communication  tower of any other
Person.

         Multiemployer  Plan shall mean a Plan which is a  "multiemployer  plan"
within the meaning of Section 4001(a)3 of ERISA.

         Organic  Document  shall  mean,  with  respect  to a Person  which is a
corporation,  its charter,  its by-laws and all shareholder  agreements,  voting
trusts and similar arrangements applicable to any of its capital stock and, with
respect to a Person which is a  partnership,  its agreement and  certificate  of
partnership,  any  agreements  among  partners,  and any  management and similar
agreements  between the partnership  and any general  partners (or any Affiliate
thereof).


                                       A-7


<PAGE>



         PBGC shall mean the Pension Benefit Guaranty Corporation and any Entity
succeeding to any or all of its functions under ERISA.

         Permitted  Liens shall mean (a) Liens for current taxes not yet due and
payable, (b) such imperfections of title, easements,  encumbrances and mortgages
or  other  Liens,  if  any,  as  are  not,  individually  or in  the  aggregate,
substantial in character,  amount or extent and do not  materially  detract from
the value, or materially interfere with the present use, of the property subject
thereto or affected thereby,  or otherwise  materially impair the conduct of the
BEA  Business,  and (c) such other Liens as are  permitted by the  provisions of
this Agreement to be in place on the Closing Date.

         Person shall mean any natural individual or any Entity.

         Personal  Property shall mean all of the machinery,  equipment,  tools,
vehicles, furniture, leasehold improvements, office equipment, plant, inventory,
spare parts and other  tangible  personal  property which are owned or leased by
BEA and used or useful as of the date hereof in the  conduct of the  business or
operations  of the BEA  Business,  plus such  additions  thereto  and  deletions
therefrom arising in the ordinary course of business between the date hereof and
the Closing Date.

         Plan shall mean,  with respect to any Person and at a particular  time,
any employee benefit plan which is covered by ERISA and in respect of which such
Person or an ERISA  Affiliate is (or, if such plan were terminated at such time,
would under  Section 4069 of ERISA be deemed to be) an  "employer" as defined in
Section  3(5) of ERISA,  but only to the extent that it covers or relates to any
officer, employee or other Person involved in the ownership and operation of the
Assets or the conduct of the business of the BEA Business.

         Prepaid Expense shall mean any item which in accordance with GAAP would
be treated as an expense and which has been paid by BEA prior to the Closing and
relates to a period subsequent to the Closing.

         Prepaid Revenue shall mean any item which in accordance with GAAP would
be treated as revenue  and which has been  received  by BEA prior to the Closing
and relates to a period subsequent to the Closing.

         Private Authorizations shall mean all approvals, concessions, consents,
franchises,  licenses,  permits,  and other authorizations of all Persons (other
than   Authorities)   including   without   limitation  those  with  respect  to
Intellectual Property.

         Pro Ratable Taxes shall mean real estate and other property  Taxes,  ad
valorem Taxes,  gross  receipts  Taxes and similar Taxes,  but shall not include
federal, state or local income Taxes, franchise Taxes or other Taxes measured by
or based upon income or gain on sale or other disposition of property or assets.

         Purchase Price shall have the meaning given to it in Section 2.3.

         Regulations  shall mean the federal income tax regulations  promulgated
under  the Code,  as such  Regulations  may be  amended  from time to time.  All
references  herein to specific  sections of the Regulations shall be deemed also
to refer to any  corresponding  provisions  of succeeding  Regulations,  and all
references  to  temporary  Regulations  shall  be  deemed  also to  refer to any
corresponding provisions of final Regulations.

         Subsidiary shall mean, with respect to a Person,  any Entity a majority
of the capital stock  ordinarily  entitled to vote for the election of directors
of which,  or if no such voting stock is  outstanding,  a majority of the equity
interests of which, is owned directly or indirectly, legally or beneficially, by
such Person or any other Person controlled by such Person.

                                       A-8


<PAGE>



         Tax (and "Taxable",  which shall mean subject to Tax), shall mean, with
respect to any Person,  (a) all taxes (domestic or foreign),  including  without
limitation any income (net, gross or other including  recapture of any tax items
such as  investment  tax  credits),  alternative  or add-on  minimum tax,  gross
income,  gross receipts,  gains,  sales, use, leasing,  lease, user, ad valorem,
transfer, recording, franchise, profits, property (real or personal, tangible or
intangible),  fuel,  license,  withholding on amounts paid to or by such Person,
payroll,  employment,  unemployment,  social security, excise, severance, stamp,
occupation, premium, environmental or windfall profit tax, custom, duty or other
tax, or other like  assessment or charge of any kind  whatsoever,  together with
any  interest,  levies,  assessments,  charges,  penalties,  addition  to tax or
additional  amount  imposed  by any Taxing  Authority,  (b) any joint or several
liability of such Person with any other Person for the payment of any amounts of
the type  described in (a) and (c) any  liability of such Person for the payment
of any  amounts  of the type  described  in (a) as a result  of any  express  or
implied obligation to indemnify any other Person.

         Tax  Claim  shall  mean any Claim  which  relates  to Taxes,  including
without limitation the representations and warranties set forth in Section 3.11.

         Tax Return or Returns shall mean all returns, consolidated or otherwise
(including without limitation  information  returns),  required to be filed with
any Authority with respect to Taxes.

         Taxing   Authority  shall  mean  any  Authority   responsible  for  the
imposition of any Tax.

         Transactions shall mean the transactions contemplated to be consummated
on or prior to the Closing Date,  including without  limitation the purchase and
sale of the BEA Assets and the BEA  Business  and the  execution,  delivery  and
performance of the Collateral Documents.




                                       A-9




                                                                    Exhibit 10.3









                            ASSET PURCHASE AGREEMENT

                                 By and Between

                          AMERICAN TOWER SYSTEMS, INC.

                                       and

                                  TOWERS L.L.C.

                                   Dated as of

                                  May 13, 1997










<PAGE>


<TABLE>
<CAPTION>

                                TABLE OF CONTENTS
<S>              <C>                                                                                            <C>

ARTICLE 1         DEFINED TERMS...................................................................................1

ARTICLE 2         SALE AND PURCHASE OF ASSETS.....................................................................1
                  2.1      Agreement to Sell and Buy..............................................................1
                  2.2      Assumption of Liabilities and Obligations. ............................................2
                  2.3      Closing; Purchase Price................................................................4
                  2.4      Accounts Receivable....................................................................6

ARTICLE 3         REPRESENTATIONS AND WARRANTIES OF SELLER........................................................7
                  3.1      Organization and Business; Power and Authority; Effect of Transaction..................7
                  3.2      Financial and Other Information.  .....................................................8
                  3.3      Changes in Condition...................................................................8
                  3.4      Materiality............................................................................8
                  3.5      Title to Properties; Leases............................................................8
                  3.6      Compliance with Private Authorizations.................................................9
                  3.7      Compliance with Governmental Authorizations and Applicable Law........................10
                  3.8      Intangible Assets.....................................................................11
                  3.9      Related Transactions..................................................................11
                  3.10     Insurance.............................................................................11
                  3.11     Tax Matters.  ........................................................................11
                  3.12     Employee Retirement Income Security Act of 1974.......................................12
                  3.13     Absence of Sensitive Payments.........................................................12
                  3.14     Inapplicability of Specified Statutes.................................................12
                  3.15     Employment Arrangements...............................................................12
                  3.16     Material Agreements...................................................................13
                  3.17     Ordinary Course of Business...........................................................13
                  3.18     Material and Adverse Restrictions.....................................................14
                  3.19     Broker or Finder......................................................................14
                  3.20     Solvency..............................................................................14
                  3.21     Environmental Matters.................................................................14

ARTICLE 4         REPRESENTATIONS AND WARRANTIES OF ATS..........................................................15
                  4.1      Organization and Business; Power and Authority; Effect of Transaction.................15
                  4.2      Broker or Finder......................................................................15
                  4.3      Solvency..............................................................................16
                  4.4      No Legal Action.......................................................................16
                  4.5      Financing.............................................................................16
                  4.6      ATS Due Diligence Investigation.......................................................16

ARTICLE 5         COVENANTS......................................................................................16
                  5.1      Access to Information; Confidentiality................................................16
                  5.2      Agreement to Cooperate.  .............................................................17
                  5.3      Public Announcements..................................................................18
                  5.4      Notification of Certain Matters.......................................................18
                  5.5      No Solicitation.......................................................................18
                  5.6      Conduct of Business by Seller Pending the Closing.....................................19


                                      

<PAGE>



ARTICLE 6         CLOSING CONDITIONS.............................................................................20
                  6.1      Conditions to Obligations of Each Party to effect the Transactions....................20
                  6.2      Conditions to Obligations of ATS......................................................20
                  6.3      Conditions to Obligations of Seller...................................................22

ARTICLE 7         TERMINATION, AMENDMENT AND WAIVER..............................................................23
                  7.1      Termination...........................................................................23
                  7.2      Effect of Termination.................................................................24

ARTICLE 8         INDEMNIFICATION................................................................................24
                  8.1      Survival..............................................................................24
                  8.2      Indemnification.......................................................................25
                  8.3      Limitation of Liability...............................................................25
                  8.4      Notice of Claims......................................................................26
                  8.5      Defense of Third Party Claims.........................................................26
                  8.6      Exclusive Remedy......................................................................27

ARTICLE 9         GENERAL PROVISIONS.............................................................................27
                  9.1      Amendment.............................................................................27
                  9.2      Waiver................................................................................27
                  9.3      Fees, Expenses and Other Payments.....................................................27
                  9.4      Notices...............................................................................27
                  9.5      Specific Performance; Other Rights and Remedies.......................................28
                  9.6      Severability..........................................................................29
                  9.7      Counterparts..........................................................................29
                  9.8      Section Headings......................................................................29
                  9.9      Governing Law; Venue..................................................................29
                  9.10     Further Acts..........................................................................29
                  9.11     Entire Agreement......................................................................30
                  9.12     Assignment............................................................................30
                  9.13     Parties in Interest...................................................................30
                  9.14     WAIVER OF TRIAL BY JURY...............................................................30
                  9.15     Mutual Drafting.......................................................................30
</TABLE>

APPENDIX A:                Definitions

SCHEDULES:

         Seller Disclosure Schedule

EXHIBITS:

         EXHIBIT A         Escrow Agreement (Third Whereas Paragraph)
         EXHIBIT B         Form of Noncompetition Agreement (Section 6.2(i))
         EXHIBIT C         Form of Employment Agreement (Section 6.2(i))
         EXHIBIT D         Form of Escrow Indemnity Agreement (Section 6.2(j))


                                      -ii-

<PAGE>




                            ASSET PURCHASE AGREEMENT

         This Asset Purchase Agreement (this "Agreement") is dated as of May 13,
1997 by and  between  American  Tower  Systems,  Inc.,  a  Delaware  corporation
("ATS"), on the one hand, and Towers L.L.C. , a South Carolina limited liability
company (the "Seller" ) on the other hand.

         WHEREAS,  Seller owns and leases and operates  communication  towers in
South  Carolina  and  Georgia  and  is  engaged  in  the  business  of  managing
communication sites for third parties in South Carolina (the "Seller Business");

         WHEREAS,  ATS desires to purchase and Seller desires to sell the Seller
Assets and the  Seller  Business  on the terms and  conditions  hereinafter  set
forth; and

         WHEREAS,  simultaneously  with  the  execution  and  delivery  of  this
Agreement,  ATS and Seller have  entered into an escrow  agreement  (the "Escrow
Agreement")  with Sullivan & Worcester  LLP,  counsel for ATS, and  Willoughby &
Hoefer, P.A., counsel for Seller (the "Escrow Agent"), pursuant to which ATS has
made a deposit of $100,000 (the "Escrow Deposit");

         NOW,  THEREFORE,  in  consideration  of  the  above  premises  and  the
covenants and agreements contained herein, the parties,  intending to be legally
bound, do hereby covenant and agree as follows:


                                    ARTICLE 1

                                  DEFINED TERMS

         As used  herein,  unless  the  context  otherwise  requires,  the terms
defined in  Appendix A shall have the  respective  meanings  set forth  therein.
Terms defined in the singular  shall have a comparable  meaning when used in the
plural,  and vice  versa,  and the  reference  to any gender  shall be deemed to
include all genders.  Unless otherwise  defined or the context otherwise clearly
requires,  terms for which  meanings are provided in this  Agreement  shall have
such meanings when used in the Seller  Disclosure  Schedule and each  Collateral
Document  executed  or required  to be  executed  pursuant  hereto or thereto or
otherwise delivered,  from time to time, pursuant hereto or thereto.  References
to "hereof", "herein" or similar terms are intended to refer to the Agreement as
a whole and not a  particular  Section,  and  references  to "this  Section" are
intended to refer to the entire Section and not a particular subsection thereof.
The term "either party" shall, unless the context otherwise  requires,  refer to
Seller and ATS.


                                    ARTICLE 2

                           SALE AND PURCHASE OF ASSETS

         2.1 Agreement to Sell and Buy.  Subject to the terms and conditions set
forth in this  Agreement,  Seller  hereby agrees to sell,  assign,  transfer and
deliver to ATS at the Closing,  and ATS agrees to purchase at the  Closing,  the
Seller Assets and the Seller Business, free and clear of any Liens of any nature
whatsoever except for Permitted Liens. For purposes of this Agreement,  the term
"Seller Assets" shall mean all of the Assets of Seller,  other than the Excluded
Assets,  and shall include without limitation the Utility Assets or any right to
acquire the Utility  Assets (as defined in Section  2.3),  or manage the Utility
Assets pursuant to the

                                                     


<PAGE>



Santee  Cooper  Contract  (as defined in Section  2.3),  as the case may be. For
purposes of this Agreement,  the term "Excluded Assets" shall mean the following
Assets:

                  (i)  all cash and cash equivalents;

                  (ii)  all Accounts Receivable;

                  (iii) all books  and  records  which  Seller  is  required  by
         Applicable  Law to retain,  subject to the right of ATS to have  access
         and to copy for a period of three (3) years from the Closing Date;  the
         records  described herein shall further include without  limitation all
         corporate seals,  certificates of  incorporation,  minute books,  stock
         books,  Tax Returns or other  records  having to do with the  corporate
         organization of Seller;

                  (iv) any pension,  profit-sharing  or employee  benefit plans,
         including any assets in any related trusts; and

                  (v)  any  and all  products,  profits  and  proceeds  of,  and
         including  without  limitation  any Claims with  respect to, any of the
         foregoing.

         2.2 Assumption of Liabilities and Obligations.

         (a) At the Closing,  ATS shall assume and agree to pay,  discharge  and
perform the following obligations and liabilities of Seller  (collectively,  the
"Seller  Assumed  Obligations"):  (i) all of the  obligations and liabilities of
Seller  under the Seller  Assumable  Agreements,  and (ii) all  obligations  and
liabilities  of Seller with respect to the ownership and operation of the Seller
Assets and the conduct of the Seller  Business,  on and after the Closing  Date;
provided,  however, that notwithstanding the foregoing, ATS shall not assume and
agree to pay, and shall not be obligated with respect to, the Seller  Nonassumed
Obligations.

         (b) ATS shall  not  assume or become  obligated  to  perform  any debt,
liability  or  obligation  of Seller  relating to any of the  following  matters
(collectively, the "Seller Nonassumed Obligations"):

                  (i) the  ownership or  operation  of the Seller  Assets or the
         conduct of the Seller  Business  prior to the Closing  Date,  including
         without  limitation  Taxes,  unfunded  pension  costs,  any  Employment
         Arrangement of Seller (including  without  limitation any obligation to
         any Seller  Employee  for  severance  benefits,  vacation  time or sick
         leave),  and any of the  following to the extent same arise from Events
         occurring prior to or existing on the Closing Date: products liability,
         Legal Actions or other Claims, and obligations and liabilities relating
         to Environmental Law;

                  (ii) any obligations or liabilities under the Seller Assumable
         Agreements relating to the period prior to the Closing;

                  (iii)  any insurance policies of Seller;

                  (iv) those  required to be disclosed in the Seller  Disclosure
         Schedule  which are not so disclosed or which,  if  disclosed,  Section
         2.2(b)(iv)  of the  Seller  Disclosure  Schedule  indicates  that  such
         obligation or liability will not be assumed;

                  (v) any liability or obligation  from or relating to breach of
         any warranty or any misrepresentation by Seller under this Agreement or
         any Collateral Document;


                                       -2-


<PAGE>



                  (vi) any liability or obligation from or relating to breach or
         violation  of, or  failure to  perform,  any of  Seller's  obligations,
         covenants,  agreements or  undertakings  set forth in this Agreement or
         any Collateral Document, including without limitation Article 5 of this
         Agreement;

                  (vii) any  obligation  or  liability  relating to any Excluded
         Asset;

                  (viii)  any   obligation  or  liability  with  respect  to  or
         Indebtedness for Money Borrowed;

                  (ix) any Taxes, fees, expenses or other amounts required to be
         paid by Seller  pursuant to the  provisions  of this  Agreement  or any
         Collateral Document; and

                  (x) any  Contract  with any  Affiliate  of Seller,  other than
         those,  if any, set forth in Section  2(b)(x) of the Seller  Disclosure
         Schedule.

All  Seller  Nonassumed  Obligations  shall  remain and be the  obligations  and
liabilities solely of Seller.

         (c)  Anything in this  Section or  elsewhere  in this  Agreement to the
contrary  notwithstanding,  the term "Seller  Nonassumed  Obligations" shall not
include,  and the term "Seller Assumed Obligations" shall include, any liability
arising out of the transfer or  assignment to ATS of, or the use or enjoyment of
the benefits by ATS under, any Contract,  Governmental  Authorization or Private
Authorization  the transfer or assignment of which  (according to Section 2.2(c)
of the Seller  Disclosure  Schedule)  requires or may require the consent of any
Authority or other third party (collectively, the "Nonassignable Contracts"), if
ATS has,  on or prior to the  Closing  Date,  notified  Seller  in  writing  (an
"Acceptance  Notice")  that ATS consents to the transfer or  assignment  of such
Nonassignable  Contract  despite the failure or  inability  of ATS and Seller to
obtain the approval or consent of an Authority or other Person whose approval or
consent is required  pursuant to the terms of such  Nonassignable  Contract,  or
elects to receive the benefits of such Nonassumable Contract, in either of which
events, if the approval or consent of an Authority or other Person applicable to
transfer  of  such  Nonassignable  Contract  is  required  to be  obtained  as a
condition to ATS'  obligations at Closing  pursuant to the provisions of Section
6.1(a) or 6.2(d), ATS shall be deemed to have waived such condition with respect
to such Nonassignable  Contract.  With respect to any Nonassignable Contract for
which the  applicable  consent of any  Authority or other Person is not obtained
prior to the  Termination  Date and for which  ATS does not  timely  deliver  an
Acceptance Notice as described in the preceding  sentence,  Seller and ATS shall
negotiate  in good  faith  to reach  an  equitable  sharing  of the  rights  and
obligations under such Nonassignable Contracts.

         (d)  Notwithstanding  anything  contained  in  this  Agreement  to  the
contrary,  except  as set  forth in  Section  2.2(d)  of the  Seller  Disclosure
Schedule,  all items of income and expense  (including  without  limitation with
respect to rent,  utility  charges,  Pro Ratable  Taxes and wages,  salaries and
accrued but unused vacation of Seller  employees)  arising from the ownership or
operation of the Seller  Assets or the conduct of the Seller  Business  shall be
prorated as of 12:01  a.m.,  Eastern  time,  on the  Closing  Date,  with Seller
entitled to and  responsible  for any such items on or prior to the Closing Date
and  ATS  entitled  to and  responsible  for  any  such  items  relating  to any
subsequent  period.  For these  purposes,  Pro Ratable Taxes  attributable  to a
period that begins  before and ends after the Closing Date shall be treated on a
"closing of the books" basis as two partial periods,  one ending at the close of
the Closing  Date and the other  beginning  on the day after the  Closing  Date,
except that Pro Ratable  Taxes  (such as property  Taxes)  imposed on a periodic
basis shall be allocated on a daily basis.  If either party shall have  received
any such  revenues or paid any such expenses or charges  which,  pursuant to the
terms  hereof,  the other  party is  entitled  to or  responsible  for, it shall
furnish the other party with a detailed  statement  of any such items as soon as
practicable  after receipt or payment thereof.  The parties shall use their best
efforts to agree upon such items and other adjustments prior to the Closing Date
and,  in any  event,  except  as set  forth  in  Section  2.2(c)  of the  Seller
Disclosure Schedule, within

                                       -3-


<PAGE>



sixty (60) days  thereafter.  If the  parties  are unable  within such period to
agree upon such items and other  adjustments,  Seller and ATS shall,  within the
following ten (10) days, jointly designate a nationally known independent public
accounting firm to be retained to review such items and other  adjustments.  The
fees and other expenses of retaining such  independent  public  accounting  firm
shall be borne equally by Seller and ATS. Such firm shall report its conclusions
as to such items and other adjustments  pursuant to this Section and such report
shall be conclusive on all parties to this  Agreement and not subject to dispute
or review.  Upon such agreement or determination by such independent  accounting
firm,  Seller or ATS, as the case may be,  shall  promptly  reimburse  the other
party for any  income  received  or  expenses  paid by the  other  party and not
previously reimbursed or any other adjustment required by this Section.

         Nothing contained in this Section 2.2 is intended or shall be deemed to
amend or modify the  indemnification  provisions  of Article 8 nor to reallocate
responsibility for the matters set forth therein.

         2.3 Closing; Purchase Price.

         (a) The closing of the Transactions (the "Closing") shall take place at
Willoughby & Hoefer,  P.A.,  1022 Calhoun  Street,  Suite 302,  Columbia,  South
Carolina 29202,  at 10:00 a.m.,  local time, on May 30, 1997 or such other date,
prior to the Termination Date, as the parties may agree (the "Closing Date"). At
the Closing, each of the parties shall deliver such bills of sale,  assignments,
assumptions of liabilities,  opinions and other instruments and documents as are
described in this Agreement or as may be otherwise  reasonably  requested by the
parties and their respective  counsel.  The purchase price for the Seller Assets
and the Seller  Business  (the  "Purchase  Price")  shall be an amount  equal to
$5,000,000,  subject to  adjustment as provided in Sections  2.2(d),  2.3(b) and
2.3(c),  plus an amount equal to the sum of (x) the Debt  Adjustment and (y) the
Prepaid  Expenses  and  minus  an  amount  equal  to the sum of (i)  the  Seller
Nonassumed  Obligations,  if any,  which ATS agrees to assume,  and (ii) Prepaid
Revenues.  The Purchase Price shall be payable (a) by ATS instructing the Escrow
Agent to deliver the Escrow Deposit (together with interest and other increments
thereto) to Seller and, (b) by wire transfer of immediately  available  funds to
Seller for the balance of the Purchase  Price to such  account (or  accounts) as
Seller shall  designate in written  instructions to ATS delivered not later than
two (2) business days prior to the Closing.

         (b)  In  the  event  that  as  of  the  Closing  Seller  has  completed
negotiations  (the  "Negotiations")  for ATS to acquire from The South  Carolina
Public  Service  Authority  ("Santee  Cooper")  (or from  Seller  as the  Direct
transferee from Santee Cooper) certain tower assets (the "Utility Assets"),  and
Santee Cooper is ready, willing and able to consummate the transactions required
to transfer  the Utility  Assets,  at a price and upon the terms and  conditions
reasonably  satisfactory  to ATS, then in  consideration  of the  opportunity to
acquire the Utility  Assets,  the Purchase  Price shall be the Purchase Price as
calculated pursuant to Section 2.3(a) plus the Utility Assets Price.

         (c) In the event that as of the Closing  Seller is unable to acquire or
enter  into an  agreement  to  acquire  (or to  enable  ATS to do  either of the
foregoing) the Utility Assets but instead enters into  contracts,  assignable to
ATS upon  terms and  conditions  reasonably  satisfactory  to, ATS to manage the
Utility Assets (the "Santee Cooper  Contract"),  then, upon  satisfaction of the
condition  specified in Section 2.3(d), the Purchase Price shall be the Purchase
Price as  calculated  pursuant to Section  2.3(a)  plus the  Utility  Management
Price.

         (d) In  the  event  that  Seller,  on  behalf  of  ATS,  completes  the
Negotiations or presents to ATS for its execution and delivery the Santee Cooper
Contract  pursuant  to  Sections  2.3(b) or  2.3(c),  respectively,  at any time
between the Closing and the one (1) year anniversary of the Closing, Buyer shall
be entitled to the Utility Assets Price or the Utility  Management Price, as the
case may be. ATS shall wire the Utility Asset

                                       -4-


<PAGE>



Price or the  Utility  Management  Price,  as the case  maybe,  to the  Seller's
account(s) as designated by Seller pursuant to written  instructions  within ten
(10) business days of receipt of such instructions.

         (e) For purposes of this  Section 2.3 "Utility  Asset Price" shall mean
cash in an amount calculated as follows:

                  (i)      First  calculate the purchase  price for which Seller
                           would be  acquiring  the  Utility  Assets from Santee
                           Cooper  and  divide  that  number  by the  annualized
                           running rate of cash flow from the Utility  Assets as
                           of the date that  Seller  would  acquire  the Utility
                           Assets  or as of the first  full  month  that  Santee
                           Cooper  makes full payment  under the  sale-leaseback
                           arrangement.  For example,  if the purchase  price of
                           the Utility Assets were $3,250,000 and the annualized
                           running  rate of cash  flow were  $480,000,  the cash
                           flow multiple for which the Seller would be acquiring
                           the Utility  Assets would be 6.77 (the  "Utility Cash
                           Flow Multiple").

                  (ii)     ATS  will  then  compensate   Seller  by  taking  the
                           difference between (x) the Utility Cash Flow Multiple
                           and (y) the cash  flow  multiple  which ATS is paying
                           Seller for the  Seller  Assets,  based upon  Seller's
                           estimated  1997  year end  running  rate of cash flow
                           (which the  parties  have  heretofore  agreed will be
                           $45,000  for  December   1997,   or  $540,000  on  an
                           annualized  basis),  and  adding  that  number to the
                           Utility Cash Flow  Multiple.  By way of example,  ATS
                           would be paying Seller  approximately 9.87 times year
                           end  1997  running  rate  of  cash  flow  ($5,330,000
                           divided by $540,000) and the difference would be 9.87
                           less 6.77, or 3.10.

                  (iii)    This differential of 3.10 would then be multiplied by
                           the  percentage of Utility  Assets being  acquired by
                           Seller  (currently  expected  to be 19)  which can be
                           utilized as lease towers, as determined by good faith
                           negotiations  of  Seller  and  ATS  at  the  time  of
                           purchase of the Utility Assets. Thus, for example, if
                           15 of the Utility  Assets are useable,  ATS would pay
                           Seller  a  cash  flow  multiple  of  6.77  plus  3.10
                           multiplied by  fifteen-nineteenths  (15/19),  or 6.77
                           plus 2.45, or 9.22.

                  (iv)     Therefore,  ATS would pay 9.22 times the cash flow of
                           the  Utility   Assets   (9.22  times   $480,000,   or
                           $4,424,337) for the Utility Assets. Seller would have
                           a gain of $1,174,337  (over and above its $3,250,000)
                           purchase price) for the Utility Assets opportunity.

         (f) For purposes of this Section 2.3 "Utility  Management  Price" shall
mean cash in an amount calculated as follows:

         The number of tower sites being managed  (estimated  currently at 64 in
         number), multiplied by the estimated annual revenue per site (estimated
         currently at $12,000),  multiplied by the  percentage of sites actually
         useable as lease sites (currently  estimated at between 65% to 75%) and
         multiplied by the management  fee percentage  negotiated by Seller with
         Santee Cooper  (estimated at between 25% to 30%).  ATS and Seller would
         then negotiate in good faith to determine (i) a reasonable  multiple of
         this  estimated  cash flow and,  (ii) since there is  presently no cash
         flow from these  towers,  the schedule of payments to be paid by ATS to
         Seller for the management  opportunity,  based in part on payments from
         Santee Cooper under the Santee Cooper Contract.


                                       -5-


<PAGE>



         (g)  Except  as set  forth  in this  Section  2.3 with  respect  to the
adjustment  of the  Purchase  Price,  all efforts of Seller with  respect to the
Negotiations  whether  prior or  subsequent  to the Closing,  including  without
limitation,  the  acquisition of the Utility Assets or execution and delivery of
the  Santee  Cooper  Contract,  as the case may be,  shall,  be for the sole and
exclusive  benefit of ATS. If executed  and  delivered  prior to the Closing the
Santee Cooper Contract shall be considered part of Seller's Assets.  If acquired
by Seller prior to the Closing the Utility  Assets shall be  considered  part of
Seller's Assets.

         (h) In the event that Seller acquires the Utility Assets or enters into
the  Santee  Cooper  Contract,  but the terms  and  conditions  thereof  are not
reasonably satisfactory to ATS, Seller shall, within ten (10) business days from
ATS' rejection of the acquisition of the Utility Assets or refusal to enter into
the Santee  Cooper  Contract,  as the case may be,  notify  ATS of its  election
either (i) to offer the Utility Assets or the Santee Cooper  Contract to a third
party which is not  Affiliated  with Kenneth E. Hall,  or (ii) submit to binding
arbitration in accordance with the Commercial Rules of the American  Arbitration
Association  the issue of ATS'  reasonableness  in rejecting the purchase of the
Utility Assets or the execution and delivery of the Santee Cooper Contract.

         (i)  Notwithstanding  anything in this  Agreement to the contrary,  the
parties acknowledge that the employees,  including the President, of Seller will
be employed by ATS  following  the Closing.  These  persons will  continue to be
involved in the Negotiations  and/or  procurement of the Santee Cooper Contract.
ATS agrees to allow  these  persons to pursue  the  Negotiations  and the Santee
Cooper  Contract,  for the benefit of ATS or, upon its rejection of the purchase
of the  Utility  Assets or refusal to enter  into the  Santee  Copper  Contract,
Seller, during normal business hours while these persons are employees of ATS.

         2.4 Accounts Receivable.  At the closing,  Seller shall appoint ATS its
agent for the purpose of  collecting  all  Accounts  Receivable  relating to the
Seller Business.  Seller shall deliver to ATS on or as soon as practicable after
the Closing Date a complete and detailed  statement showing the name, amount and
age of each Accounts  Receivable of the Seller Business.  Subject to and limited
by the following,  revenues relating to the Accounts  Receivable relating to the
Seller  Business  will be for the  account  of  Seller.  ATS  shall use the same
procedures and efforts which it uses with respect to its own accounts receivable
to collect the Accounts  Receivable  with  respect to the Seller  Business for a
period of ninety (90) days after the Closing Date (the "Collection Period"). Any
payment  received by ATS during the Collection  Period from any customer with an
account  which is an Accounts  Receivable  with  respect to the Seller  Business
shall  first be applied in  reduction  of the  Accounts  Receivable,  unless the
customer  contests  the  validity  of such  application.  During the  Collection
Period,  ATS shall  furnish  Seller with a list of, and pay over to Seller,  the
amounts  collected with respect to the Accounts  Receivable  with respect to the
Seller Business on a monthly basis and forward to Seller,  promptly upon receipt
or  delivery,  as the case may be,  copies  of all  correspondence  relating  to
Accounts  Receivable.  ATS shall  provide  Seller with a final  accounting on or
before the fifteenth (15th) day following the end of the Collection Period. Upon
the request of either  party at and after such time,  the parties  shall meet to
mutually  and in good faith  analyze  any  uncollected  Accounts  Receivable  to
determine if the same, in their reasonable  business judgment,  are deemed to be
collectable  and if ATS desires to retain such Accounts  Receivable.  As to each
such Accounts Receivable, the parties shall negotiate a good faith value of such
Accounts  Receivable,  which  ATS  shall  pay to  Seller  if  ATS,  in its  sole
discretion,  chooses to retain such Accounts Receivable. Seller shall retain the
right to collect  any of its  Accounts  Receivable  as to which the  parties are
unable to reach agreement as to a good faith value,  and ATS agrees to turn over
to Seller any payments received against any such Accounts Receivable.  ATS shall
not be obligated to use any extraordinary efforts to collect any of the Accounts
Receivable  assigned  to it for  collection  hereunder  or to refer  any of such
Accounts  Receivable to a collection  agency or to any attorney for  collection,
and ATS shall not make any such referral or compromise, nor settle or adjust the
amount of any such Accounts Receivable,  except with the approval of Seller. ATS
shall not incur any liability to Seller for any  uncollected  account unless ATS
shall have engaged in willful  misconduct or gross negligence in the performance
of its obligations

                                       -6-


<PAGE>



set forth in this  Section.  During  and after the  Collection  Period,  without
specific agreement with ATS to the contrary, neither Seller nor its agents shall
make any direct solicitation of the Accounts Receivable for collection purposes,
except for Accounts Receivable retained by Seller after the Collection Period.


                                    ARTICLE 3

                    REPRESENTATIONS AND WARRANTIES OF SELLER

         Seller hereby  represents,  warrants and covenants to, and agrees with,
ATS as follows:

         3.1  Organization  and  Business;   Power  and  Authority;   Effect  of
Transaction.

         (a)  Seller is a limited  liability  company  duly  organized,  validly
existing  and  in  good  standing  under  the  laws  of  its   jurisdiction   of
organization, has all requisite limited liability company power and authority to
own or hold under  lease its  properties  and to  conduct  its  business  as now
conducted.

         (b)  Seller  has all  requisite  limited  liability  company  power and
authority  and has in full  force and  effect  all  Governmental  Authorizations
(which,  for  purposes of this  Section  3.1(b),  relate only to the sale of the
Seller  Assets  and the Seller  Business  generally  and not to  "site-specific"
Governmental  Authorizations  or those  required  by local  Applicable  Law) and
Private  Authorizations,  except  for those set forth in  Section  3.1(b) of the
Seller  Disclosure  Schedule  or those the failure of which to obtain do not and
will not have, individually or in the aggregate,  any material adverse effect on
Seller,  necessary  to enable it to execute  and  deliver,  and to  perform  its
obligations  under,  this  Agreement and each  Collateral  Document  executed or
required to be executed by it pursuant  hereto or thereto or to  consummate  the
Transactions;  and the execution, delivery and performance of this Agreement and
each  Collateral  Document  executed  or  required to be executed by it pursuant
hereto or thereto have been duly authorized by all requisite  corporate or other
action  on the part of  Seller.  This  Agreement  has  been  duly  executed  and
delivered by Seller and constitutes,  and each Collateral  Document  executed or
required to be executed by it pursuant  hereto or thereto or to  consummate  the
Transactions when executed and delivered by Seller will constitute, legal, valid
and  binding  obligations  of  Seller,  enforceable  in  accordance  with  their
respective terms.

         (c)  Except as set forth in  Section  3.1(c) of the  Seller  Disclosure
Schedule,  and except for matters which would have no material adverse effect on
Seller,  neither the execution  and delivery by Seller of this  Agreement or any
Collateral Document executed or required to be executed by it pursuant hereto or
thereto, nor the consummation by Seller of the Transactions, nor compliance with
the terms, conditions and provisions hereof or thereof by Seller:

                  (i) will conflict with, or result in a breach or violation of,
         or constitute a default  under,  any Organic  Document of Seller or any
         Applicable Law (which, for purposes of this Section 3.1(c)(i),  relates
         only to the sale of the Seller Assets and the Seller Business generally
         and not to local Applicable Law), or will conflict with, or result in a
         breach or violation  of, or constitute a default  under,  or permit the
         acceleration  of  any  obligation  or  liability  in,  or but  for  any
         requirement  of  giving  of notice  or  passage  of time or both  would
         constitute  such a conflict  with,  breach or violation  of, or default
         under, or permit any such  acceleration in, any Contractual  Obligation
         of Seller, other than those constituting Seller Nonassumed Obligations;
         or

                  (ii) will  require  Seller to make or obtain any  Governmental
         Authorization (which, for purposes of this Section 3.1(c)(ii)),  relate
         only to the sale of the Seller Assets and Seller Business

                                       -7-


<PAGE>



         generally and not to  "site-specific"  Governmental  Authorizations  or
         those  required  by local  Applicable  Law),  or Private  Authorization
         including without limitation under the FCA.

         (d) Seller does not have any Subsidiaries.

         3.2 Financial and Other Information. Seller has heretofore furnished to
ATS copies of the financial  statements of the Seller Business listed in Section
3.2 of the Seller Disclosure  Schedule (the "Seller Financial  Statements").  To
the best of Seller's knowledge,  the Seller Financial  Statements,  including in
each case the notes thereto,  have been prepared in accordance with GAAP applied
on a  consistent  basis  throughout  the  periods  covered  thereby,  except  as
otherwise noted therein or as set forth in Section 3.2 of the Seller  Disclosure
Schedule,  are true,  accurate  and complete in all  material  respects,  do not
contain any untrue statement of a material fact or omit to state a material fact
required  by GAAP to be  stated  therein  or  necessary  in  order  to make  the
statements  contained  therein not misleading,  and fairly present the financial
condition and the results of operations and cash flow of the Seller Business, on
the bases  therein  stated,  as of the  respective  dates  thereof,  and for the
respective periods covered thereby subject,  in the case of unaudited  financial
statements, to normal nonmaterial year-end audit adjustments and accruals.

         The parties  recognize that Seller was issued a qualified  opinion with
respect to its 1996 financial  statements.  A copy of these  statements has been
provided to ATS.

         3.3 Changes in Condition.  Since the date of the most recent  financial
statements constituting a part of the Seller Financial Statements, except to the
extent specifically  described in Section 3.3 of the Seller Disclosure Schedule,
there has been no material adverse change in Seller.  There is no Event known to
Seller which materially  adversely affects, or is likely to materially adversely
affect,  Seller,  except to the extent specifically  described in Section 3.3 of
the Seller Disclosure Schedule.

         3.4 Materiality.  The  representations and warranties set forth in this
Article would in the aggregate be true and correct even without the  materiality
exceptions  or  qualifications  contained  therein  or set  forth in the  Seller
Disclosure  Schedule,  except for such exceptions and  qualifications  including
without  limitation those set forth in the Seller Disclosure  Schedule which, in
the aggregate for all such representations and warranties, are not and could not
reasonably be expected to be materially adverse to Seller.

         3.5 Title to Properties; Leases.

         (a) Section 3.5(a) of the Seller  Disclosure  Schedule contains a true,
accurate and complete  description  of all real property owned by Seller that is
part  of the  Seller  Assets.  Seller  has  good  indefeasible,  marketable  and
insurable  title to all real property  (other than  leasehold real property) and
good  indefeasible and  merchantable  title to all other assets (other than real
property), tangible and intangible, constituting a part of the Seller Assets, in
each case free and clear of all Liens,  except (i) Permitted  Liens,  (ii) Liens
set forth on Section 3.5(a) of the Seller Disclosure Schedule and (iii) Approved
Title Conditions.  Except for financing statements  evidencing Liens referred to
in the preceding sentence (a true, accurate and complete list and description of
which is set forth in Section  3.5(a) of the  Seller  Disclosure  Schedule),  no
financing statements under the Uniform Commercial Code and no other filing which
names  Seller as debtor or which  covers or  purports to cover any of the Seller
Assets is on file in any state or other jurisdiction,  and Seller has not signed
or  agreed to sign any such  financing  statement  or  filing  or any  agreement
authorizing any secured party thereunder to file any such financing statement or
filing. To the best of Seller's knowledge, except as disclosed in Section 3.5(a)
of the Seller Disclosure  Schedule,  all improvements on the real property owned
or leased by Seller are in compliance with applicable zoning,  wetlands and land
use laws, ordinances and regulations and applicable title covenants, conditions,
restrictions  and  reservations  in  all  respects   necessary  to  conduct  the
operations as presently  conducted,  except for any instances of  non-compliance
which do not

                                       -8-


<PAGE>



and will not in the  aggregate  have a material  adverse  effect on the owner or
lessee,  as the case may be,  of such  real  property.  To the best of  Seller's
knowledge,  except as  disclosed  in  Section  3.5(a) of the  Seller  Disclosure
Statement,  all  such  improvements  comply  in all  material  aspects  with all
Applicable Laws, Governmental Authorizations and Private Authorizations.  Except
as disclosed in Section 3.5(a) of the Seller  Disclosure  Statement,  all of the
transmitting  towers,  ground radials, guy anchors,  transmitting  buildings and
related  improvements located on the real property owned or leased by Seller are
located  entirely on such real  property.  There is no pending  and, to Seller's
knowledge,  threatened  or  contemplated  action  to take by  eminent  domain or
otherwise  to condemn any part of any real  property  owned or leased by Seller.
Except as set forth in Section 3.5(a) of the Seller  Disclosure  Schedule,  such
real property (other than land), fixtures, fixed assets and other material items
of personal property, including equipment, have, in Seller's reasonable business
judgment,  been  maintained  in a  manner  consistent  with  generally  accepted
standards of sound engineering  practice and, to the best of Seller's knowledge,
currently permit the Seller Business to be operated in all material  respects in
accordance  with the terms and conditions of all Applicable  Laws,  Governmental
Authorizations and Private Authorizations.

         (b) Section 3.5(b) of the Seller  Disclosure  Schedule contains a true,
accurate and complete  description  of all Leases under which any real  property
used in the Seller Business is leased. Except as otherwise set forth in Schedule
3.5(b) of the Seller Disclosure Schedule, each Lease or other occupancy or other
agreement under which Seller holds real or personal property constituting a part
of the Seller Assets has been duly authorized,  executed and delivered by Seller
and, to Seller's knowledge,  each of the other parties thereto,  and is a legal,
valid and binding obligation of Seller, and, to Seller's knowledge,  each of the
other parties  thereto,  enforceable in accordance with its terms.  Seller has a
valid leasehold interest in and enjoys peaceful and undisturbed possession under
all  Leases  pursuant  to which it holds  any such  real  property  or  tangible
personal  property.  To the best of Seller's  knowledge,  all of such Leases are
valid and  subsisting  and in full force and  effect;  neither  Seller  nor,  to
Seller's  knowledge,  any other party  thereto,  is in  material  default in the
performance,  observance or fulfillment of any obligation, covenant or condition
contained in any such Lease. None of the fixed assets or equipment  comprising a
part of the Seller  Assets is subject to contracts of sale,  and none is held by
Seller as lessee or as  conditional  sales vendee under any Lease or conditional
sales contract and none is subject to any title retention  agreement,  except as
set forth in Section 3.5(b) of the Seller Disclosure Schedule.

         (c) Section 3.5(c) of the Seller  Disclosure  Schedule contains a true,
accurate and complete  description  of all  material  items of Sellers  Personal
Property.  Seller owns and has good and merchantable title to all of the Sellers
Personal  Property  relating  to the Sellers  Business  (the  "Sellers  Personal
Property"),  in each  case,  free and clear of all Liens,  except (i)  Permitted
Liens and (ii)  Liens  set forth on  Section  3.5(c)  of the  Seller  Disclosure
Schedule  (which Liens shall be released prior to Closing).  Except as set forth
in Section 3.5(c) of the Seller Disclosure Schedule,  all of the Seller Personal
Property is in a state of good repair and  maintenance  and is in good operating
condition,  normal  wear and tear  excepted,  has  been  maintained  in a manner
consistent with generally  accepted  standards of good engineering  practice and
currently  permits the Seller  Business to be  operated in  accordance  with the
terms and conditions of all Applicable Laws.

         3.6 Compliance with Private  Authorizations.  Section 3.6 of the Seller
Disclosure   Schedule  sets  forth  a  true,  accurate  and  complete  list  and
description of each Private  Authorization  which Seller currently holds. To the
best of Seller's knowledge, Seller has obtained all Private Authorizations which
are necessary for the ownership or operation of the Seller Assets or the conduct
of  the  Seller  Business   which,  if  not  obtained  and  maintained,   could,
individually or in the aggregate,  materially  adversely  affect Seller.  All of
such  Private  Authorizations,  to  Seller's  knowledge,  are  valid and in good
standing  and are in full force and effect.  To the best of Seller's  knowledge,
Seller is not in breach or  violation  of,  or in  default  in the  performance,
observance or fulfillment of, any such Private  Authorization,  and, to the best
of Seller's knowledge,  no Event exists or has occurred,  which constitutes,  or
but for any requirement of giving of notice or passage of time or both

                                       -9-


<PAGE>



would constitute,  such a breach,  violation or default,  under any such Private
Authorization,  except for such  defaults,  breaches or violations as do not and
will not have in the aggregate any material  adverse  effect on Seller.  No such
Private  Authorization is the subject of any pending or, to Seller's  knowledge,
threatened attack, revocation or termination.

         3.7 Compliance with Governmental Authorizations and Applicable Law.

         (a) Section 3.7(a) of the Seller  Disclosure  Schedule contains a true,
complete and  accurate  description  of each  Governmental  Authorization  which
Seller  currently holds. To the best of Seller's  knowledge,  these are the only
Governmental  Authorizations  (i)  required  under  Applicable  Laws  to own and
operate the Seller Business,  as currently conducted or proposed to be conducted
on or prior to the Closing Date,  or (ii)  necessary to permit Seller to execute
and deliver this Agreement and to perform its obligations hereunder. To the best
of Seller's knowledge, Seller has obtained all Governmental Authorizations which
are necessary for the ownership or operation of the Seller Assets or the conduct
of the  Seller  Business  as now  conducted  and  which,  if  not  obtained  and
maintained,  would,  individually or in the aggregate, have any material adverse
effect on  Seller.  None of the  Governmental  Authorizations  listed in Section
3.7(a) of the Seller Disclosure Schedule,  to Seller's knowledge,  is subject to
any  restriction  or  condition  which would limit in any  material  respect the
ownership  or  operations  of the  Seller  Assets or the  conduct  of the Seller
Business  as  currently  conducted,   except  for  restrictions  and  conditions
generally   applicable  to  Governmental   Authorizations   of  such  type.  The
Governmental  Authorizations  listed in Section 3.7(a) of the Seller  Disclosure
Schedule are, to Seller's  knowledge,  valid and in good  standing,  are in full
force and  effect and are not  impaired  in any  material  respect by any act or
omission of Seller or its officers, directors,  employees or agents, and, to the
best of Seller's  knowledge,  the ownership or operation of the Seller Assets or
the conduct of the Seller  Business are in accordance  in all material  respects
with the Governmental Authorizations. All material reports, forms and statements
required to be filed by Seller with all  Authorities  with respect to the Seller
Business  have,  to Seller's  knowledge,  been filed and are true,  complete and
accurate in all material  respects.  No such  Governmental  Authorization is the
subject of any  pending  or, to  Seller's  knowledge,  threatened  challenge  or
proceeding to revoke or terminate any such  Governmental  Authorization.  Seller
does not believe that any such Governmental Authorization will not be renewed in
the name of Seller by the granting Authority in the ordinary course.

         (b) Except as otherwise specifically described in Section 3.7(b) of the
Seller Disclosure  Schedule,  neither Seller nor any director or officer thereof
(in  connection  with ownership or operation of the Seller Assets or the conduct
of the  Seller  Business)  is in or is  charged  by any  Authority  with or,  to
Seller's  knowledge,  at any time since  January 1, 1993 has been in or has been
charged by any Authority with, or, to Seller's knowledge, is threatened or under
investigation  by any  Authority  with respect to,  breach or  violation  of, or
default in the  performance,  observance  or  fulfillment  of, any  Governmental
Authorization  or any  Applicable Law relating to the ownership and operation of
the Seller  Assets or the conduct of the Seller  Business.  In  particular,  but
without  limiting the  generality of the foregoing,  there are no  applications,
complaints or Legal Actions pending or, to Seller's knowledge, threatened before
or by any  Authority  (x)  relating to the  ownership or operation of the Seller
Assets or the  conduct  of the Seller  Business  which,  individually  or in the
aggregate,  are reasonably  likely to result in the revocation or termination of
any  Governmental  Authorization  or the imposition of any restriction of such a
nature as would adversely affect the ownership or operation of the Seller Assets
or the  conduct  of the  Seller  Business;  (y)  involving  charges  of  illegal
discrimination  by Seller  under any federal or state  employment  Laws,  or (z)
involving  Environmental  Laws or zoning laws, except as otherwise  specifically
described in Section 3.7(b) of the Seller Disclosure Schedule.

         (c) Except as otherwise specifically described in Section 3.7(c) of the
Seller Disclosure Schedule, no Event exists or has occurred,  which, to Seller's
knowledge, constitutes, or but for any requirement of

                                      -10-


<PAGE>



giving of notice or  passage of time or both  would  constitute,  such a breach,
violation or default, under (i) any Governmental Authorization or any Applicable
Law,  except for such  breaches,  violations  or defaults as do not and will not
have, individually or in the aggregate, any material adverse effect on Seller or
(ii) any  material  requirement  of any  insurance  carrier,  applicable  to the
ownership  or  operations  of the  Seller  Assets or the  conduct  of the Seller
Business.

         (d) With respect to matters, if any, of a nature referred to in Section
3.7(a), 3.7(b) or 3.7(c) of the Seller Disclosure Schedule,  except as otherwise
specifically  described in Section 3.7(d) of the Seller Disclosure Schedule, all
such  information and matters set forth in the Seller  Disclosure  Schedule,  if
adversely determined against Seller, will not, individually or in the aggregate,
have a materially adversely effect on Seller.

         3.8 Intangible  Assets.  Section 3.8 of the Seller Disclosure  Schedule
sets forth a true,  accurate and complete  description of all Intangible  Assets
(other than Governmental  Authorizations and Private Authorizations) relating to
the  ownership  and  operation of the Seller Assets or the conduct of the Seller
Business  held or used by Seller,  including  without  limitation  the nature of
Seller's  interest  in each and the  extent  to which  the same  have  been duly
registered  in the  offices  as  indicated  therein.  To the  best  of  Seller's
knowledge, except as set forth in Section 3.8 of the Seller Disclosure Schedule,
no   Intangible   Assets   (except    Governmental    Authorizations,    Private
Authorizations,  and the  Intangible  Assets so set forth) are  required for the
ownership  or  operation  of the  Seller  Assets or the  conduct  of the  Seller
Business as currently  owned,  operated  and  conducted or proposed to be owned,
operated and conducted on or prior to the Closing Date.  Seller does not, to its
knowledge,  wrongfully  infringe upon or unlawfully  use any  Intangible  Assets
owned or claimed by another, and Seller has not received any notice of any claim
or infringement relating to any such Intangible Asset.

         3.9  Related  Transactions.  Seller  is not a party or  subject  to any
Contractual  Obligation  relating to the  ownership  or  operation of the Seller
Assets or the  conduct  of the  Seller  Business  between  Seller and any of its
officers, directors, shareholders, employees or, to the knowledge of Seller, any
Affiliate  of  any  thereof,   including  without   limitation  any  Contractual
Obligation  providing  for the  furnishing  of services to or by,  providing for
rental of property,  real,  personal or mixed,  to or from, or providing for the
lending or borrowing of money to or from or otherwise  requiring  payments to or
from,  any  such  Person,  other  than (i)  Employment  Arrangements  listed  or
described in Section 3.15 of the Seller  Disclosure  Schedule,  (ii) Contractual
Obligations  between  Seller and any of its directors,  shareholders,  officers,
employees or  Affiliates  of Seller or any of the  foregoing,  which  constitute
Excluded Assets or Seller Nonassumed  Obligations,  or (iii) as specifically set
forth in Section 3.9 of the Seller Disclosure Schedule.

         3.10 Insurance. Seller maintains, with respect to the Seller Assets and
the Seller  Business,  policies  of fire and  extended  coverage  and  casualty,
liability  and other forms of  insurance  in such amounts and against such risks
and losses as are set forth in Section 3.10 of the Seller Disclosure Schedule.

         3.11 Tax Matters.

         (a) Seller has in accordance with all Applicable Laws filed all federal
and state and, to the best of Seller's  knowledge,  local Tax Returns  which are
required to be filed,  and has paid, or made adequate  provision for the payment
of, all Taxes  which have or may become  due and  payable  pursuant  to said Tax
Returns  and all other  governmental  charges and  assessments  received to date
other  than  those  Taxes  being  contested  in good  faith for  which  adequate
provision has been made on the most recent  balance sheet forming part of Seller
Financial  Statements.  To the best of  Seller's  knowledge,  the Tax Returns of
Seller  have been  prepared in all  material  respects  in  accordance  with all
Applicable  Laws  and  generally  accepted  principles  applicable  to  taxation
consistently  applied. All Taxes which Seller is required by law to withhold and
collect

                                      -11-


<PAGE>



have been duly  withheld  and  collected,  and have been paid over,  in a timely
manner, to the proper Authorities to the extent due and payable.  Seller has not
executed any waiver to extend,  or otherwise  taken or failed to take any action
that would have the effect of extending,  the applicable  statute of limitations
in respect of any Tax  liabilities  of Seller for the fiscal  years prior to and
including  the most recent  fiscal  year.  Adequate  provision  has, to Seller's
knowledge,  been made on the most recent  balance  sheet  forming part of Seller
Financial  Statements  for all Taxes  accrued  through the date of such  balance
sheet of any kind, including interest and penalties in respect thereof,  whether
disputed or not, and whether  past,  current or deferred,  accrued or unaccrued,
fixed,  contingent,  absolute or other, and there are, to Seller's knowledge, no
past  transactions  or  matters  which  could  result in  additional  Taxes of a
material nature to Seller for which an adequate reserve has not been provided on
such balance sheet. Seller is not a "consenting  corporation" within the meaning
of Section 341(f) of the Code.

         (b) Seller is not a party to any tax sharing agreement or arrangement.

         3.12 Employee Retirement Income Security Act of 1974.

         (a) Seller  (which for purposes of this Section shall include any ERISA
Affiliate) is not making any  contribution to or sponsoring,  and has not at any
time since its organization  made any contribution to or sponsored,  any Plan or
Benefit Arrangement.

         3.13 Absence of  Sensitive  Payments.  Neither  Seller nor, to Seller's
knowledge,  any  of  its  officers,   directors,   employees,  agents  or  other
representatives,  has with respect to the Seller  Assets or the Seller  Business
(a) made any  contributions,  payments or gifts to or for the private use of any
governmental official, employee or agent where either the payment or the purpose
of such  contribution,  payment or gift is illegal  under the laws of the United
States or the  jurisdiction  in which made or (b)  established or maintained any
unrecorded fund or asset for any purpose or made any false or artificial entries
on its books.

         3.14  Inapplicability of Specified  Statutes.  Seller is not a "holding
company", or a "subsidiary company" or an "affiliate" of a "holding company", as
such terms are defined in the Public  Utility  Holding  Company Act of 1935,  as
amended,  or an "investment  company" or a company  "controlled" by or acting on
behalf of an "investment  company",  as defined in the Investment Company Act of
1940, as amended, or a "carrier" or a person which is in control of a "carrier",
as defined in section 11301 of Title 49, U.S.C.

         3.15  Employment  Arrangements.  Section 3.15 of the Seller  Disclosure
Schedule  contains a true,  accurate and complete  list of all Seller  employees
involved in the  ownership or  operation of the Seller  Assets or the conduct of
the Seller Business (the "Seller Employees"), together with each such employee's
title or the capacity in which he or she is employed and the basis for each such
employee's  compensation.  Seller has no obligation or liability,  contingent or
other,  under any Employment  Arrangement with any Seller  Employee,  other than
those listed or described  in Section  3.15 of the Seller  Disclosure  Schedule.
Except as described in Section 3.15 of the Seller Disclosure Schedule,  (a) none
of the Seller  Employees is now, or since January 1, 1993 has been,  represented
by any labor union or other employee  collective  bargaining  organization,  and
Seller is not,  and never  has  been,  a party to any labor or other  collective
bargaining agreement with respect to any of the Seller Employees,  (b) there are
no pending  grievances,  disputes or  controversies  with any union or any other
employee or collective bargaining  organization of such employees, or threats of
strikes,  work  stoppages  or slowdowns  or any pending  demands for  collective
bargaining by any such union or other  organization,  (c) neither Seller nor any
of such  employees  is now,  or has since  January 1, 1993  been,  subject to or
involved in or, to Seller's  knowledge,  threatened  with, any union  elections,
petitions therefore or other  organizational or recruiting  activities,  in each
case with respect to the Seller Employees,  and (d) none of the Seller Employees
has notified  Seller that he or she does not intend to continue  employment with
Seller until the Closing or with ATS following the Closing. Seller has performed
in all material respects all obligations

                                      -12-


<PAGE>



required  to be  performed  under  all  Employment  Arrangements  and  is not in
material  breach or violation of or in material  default or arrears under any of
the terms, provisions or conditions thereof.

         3.16  Material  Agreements.  Listed  on  Section  3.16  of  the  Seller
Disclosure  Schedule are all Material  Agreements  relating to the  ownership or
operation  of the Seller  Assets or the  conduct of the  business  of the Seller
Business  or to which  Seller is a party or to which it is bound or which any of
the Seller Assets is subject. True, accurate and complete copies of each of such
Material  Agreements  have been made  available  by Seller to ATS and Seller has
provided ATS with photocopies of all such Material Agreements  requested by ATS.
All of such  Material  Agreements  are valid,  binding and  legally  enforceable
obligations  of Seller and, to Seller's  knowledge,  all other parties  thereto,
except  as  such  enforceability  may  be  limited  by  bankruptcy,  moratorium,
insolvency  and similar laws  affecting the rights and remedies of creditors and
obligations  of debtors  generally  and by  general  principles  of  equity.  To
Seller's  knowledge  Seller has duly complied with all of the material terms and
conditions  of each such Material  Agreement  and has not done or performed,  or
failed to do or perform (and there is no pending or, to the knowledge of Seller,
Claim threatened in writing that Seller has not so complied,  done and performed
or failed to do and perform) any act which would  invalidate or provide  grounds
for the other party  thereto to terminate  (with or without  notice,  passage of
time or both) such  Material  Agreement  or impair the  rights or  benefits,  or
increase  the costs,  of Seller  under any of such  Material  Agreements  in any
material respect.

         3.17  Ordinary  Course of  Business.  Seller,  from the end of its most
recent  fiscal  quarter to the date  hereof,  except (i) as may be  described on
Section 3.17 of the Seller  Disclosure  Schedule,  or (ii) as may be required or
expressly  contemplated  by the terms of this  Agreement,  with  respect  to the
Seller Assets and the Seller Business:

                  (a) has operated its business in all material  respects in the
         normal,  usual and customary  manner in the ordinary and regular course
         of business, consistent with prior practice;

                  (b) except in each case in the  ordinary  course of  business,
         consistent with prior practice:

                           (i) has not  incurred  any  obligation  or  liability
                  (fixed,  contingent or other)  individually  having a value in
                  excess of $25,000;

                           (ii)  has  not  sold  or  otherwise  disposed  of  or
                  contracted  to  sell  or  otherwise  dispose  of  any  of  its
                  properties or assets having a value in excess of $25,000;

                           (iii) has not entered into any individual  commitment
                  having a value in excess of $25,000; and

                           (iv)  has not canceled any debts or claims;

                  (c) has not created or permitted to be created any Lien on any
         of its  property  and has not  incurred  any  Indebtedness  from  Money
         Borrowed;

                  (d) has not made or  committed  to make any  additions  to its
         property or any purchases of equipment,  except in the ordinary  course
         of business consistent with past practice or for normal maintenance and
         replacements;

                  (e) has not  increased the  compensation  payable or to become
         payable  to any of the  Seller  Employees  other  than in the  ordinary
         course of business or otherwise materially altered, modified or changed
         the terms of their employment;

                                      -13-


<PAGE>




                  (f) has not suffered any material damage,  destruction or loss
         (whether or not covered by insurance) or any  acquisition  or taking of
         property by any Authority;

                  (g) has not waived any rights of material  value  without fair
         and adequate consideration;

                  (h) has not experienced any work stoppage;

                  (i) except in the ordinary course of business, has not entered
         into,  amended or  terminated  any Lease,  Governmental  Authorization,
         Private Authorization, Material Agreement or Employment Arrangement, or
         any transaction, agreement or arrangement with any Affiliate of Seller,
         except for Seller Nonassumed Obligations; and

                  (j) has not entered  into any other  transaction  or series of
         related transactions which individually or in the aggregate is material
         to the Seller Assets or the Seller Business.

         3.18  Material  and  Adverse  Restrictions.  To the  best  of  Seller's
knowledge,  Seller is not a party to or  subject  to,  nor is any of the  Seller
Assets subject to, any Applicable Law, Governmental  Authorization,  Contractual
Obligation, Employment Arrangement, Material Agreement or Private Authorization,
or any  other  obligation  or  restriction  of any  kind  or  character,  which,
individually  or in the  aggregate,  now has or is likely  to have any  material
adverse  effect on  Seller,  except as set forth in  Section  3.18 of the Seller
Disclosure Schedule.

         3.19  Broker or Finder.  No Person  assisted  in or  brought  about the
negotiation  of this  Agreement or the  Transactions  in the capacity of broker,
agent or finder or in any similar capacity on behalf of Seller.

         3.20  Solvency.  As of the  execution  and delivery of this  Agreement,
Seller is, and immediately  prior to and after giving effect to the consummation
of the Transactions will be, solvent.

         3.21 Environmental Matters.  Except as set forth in Section 3.21 of the
Seller Disclosure Schedule, with respect to the Seller Assets, Seller:

                  (a) has not been notified that it is potentially liable under,
         has not received any request for  information  or other  correspondence
         concerning its potential liability with respect to any site or facility
         under, and, to Seller's  knowledge,  is not a "potentially  responsible
         party" under, the Comprehensive  Environmental  Response,  Compensation
         and  Liability  Act of 1980,  as  amended,  the  Resource  Conservation
         Recovery Act, as amended, or any similar state law;

                  (b) has not  entered  into or  received  any  consent  decree,
         compliance  order  or  administrative  order  issued  pursuant  to  any
         Environmental Law;

                  (c) is not a party in interest or, to Seller's  knowledge,  in
         default under any judgment,  order,  writ,  injunction or decree of any
         Final Order issued pursuant to any Environmental Law;

                  (d) to Seller's  knowledge,  is in  compliance in all material
         respects with all  Environmental  Laws, has obtained all  Environmental
         Permits required under Environmental Laws, and is not the subject of or
         threatened  with any Legal  Action  involving  a demand for  damages or
         other potential  liability  including any Lien with respect to material
         violations or material breaches of any Environmental Law; and


                                      -14-


<PAGE>



                  (e) has no knowledge of any past or present  Event  related to
         the Seller  Business or the Seller Assets which Event,  individually or
         in the aggregate,  will materially  interfere with or prevent continued
         material compliance with all Environmental Laws, or which, individually
         or in the aggregate,  will form the basis of any material Claim for the
         release or threatened  release into the  environment,  of any Hazardous
         Material.


                                    ARTICLE 4

                      REPRESENTATIONS AND WARRANTIES OF ATS

         ATS represents,  warrants and covenants to, and agrees with,  Seller as
follows:

         4.1  Organization  and  Business;   Power  and  Authority;   Effect  of
Transaction.

         (a) ATS is a corporation  duly organized,  validly existing and in good
standing  under  the  laws  of its  jurisdiction  of  incorporation  and has all
requisite  power and authority  (corporate and other) to own or hold under lease
its properties and to conduct its business as now conducted.

         (b) ATS has all  requisite  corporate  power  and  corporate  authority
necessary  to enable it to execute and deliver,  and to perform its  obligations
under,  this Agreement and each Collateral  Document  executed or required to be
executed by it pursuant hereto or thereto or to consummate the Transactions; and
the execution,  delivery and  performance of this Agreement and each  Collateral
Document  executed or  required to be executed by it pursuant  hereto or thereto
have been duly authorized by all requisite corporate or other action on the part
of  ATS.  This  Agreement  has  been  duly  executed  and  delivered  by ATS and
constitutes, and each Collateral Document executed or required to be executed by
it pursuant  hereto or thereto or to consummate the  Transactions  when executed
and delivered by ATS will constitute,  legal,  valid and binding  obligations of
ATS,  enforceable  in accordance  with their  respective  terms,  except as such
enforceability may be limited by bankruptcy,  moratorium, insolvency and similar
laws  affecting  the rights and remedies of  creditors  and the  obligations  of
debtors generally and by general principles of equity.

         (c) Except for matters which would not have a material  adverse  effect
on ATS,  neither the  execution  and  delivery by ATS of this  Agreement  or any
Collateral Document executed or required to be executed by it pursuant hereto or
thereto,  nor the consummation by ATS of the  Transactions,  nor compliance with
the terms, conditions and provisions hereof or thereof by ATS:

                  (i) will conflict with, or result in a breach or violation of,
         or  constitute  a default  under,  any  Organic  Document of ATS or any
         Applicable  Law on the part of ATS, or will conflict with, or result in
         a breach or violation of, or constitute a default under,  or permit the
         acceleration  of  any  obligation  or  liability  in,  or but  for  any
         requirement  of  giving  of notice  or  passage  of time or both  would
         constitute  such a conflict  with,  breach or violation  of, or default
         under, or permit any such  acceleration in, any Contractual  Obligation
         of ATS; or

                  (ii)  will  require  ATS to make or  obtain  any  Governmental
         Authorization,  Governmental Filing or Private Authorization  including
         without limitation under the FCA.

         4.2  Broker or  Finder.  No Person  assisted  in or  brought  about the
negotiation  of this  Agreement or the  Transactions  in the capacity of broker,
agent or finder or in any similar capacity on behalf of ATS.


                                      -15-


<PAGE>



         4.3 Solvency.  As of the execution and delivery of this Agreement,  ATS
is, and immediately  prior to and after giving effect to the consummation of the
Transactions will be, solvent.

         4.4 No Legal  Action.  There are no Legal  Actions  pending  or, to the
knowledge  of ATS,  threatened  against ATS or any of its  Affiliated  Entities,
officers  or  directors,  that  question  or may  affect  the  validity  of this
Agreement  or the  right  of ATS to  consummate  the  transactions  contemplated
hereunder.

         4.5 Financing.  ATS has available, and as of the Closing Date will have
available,  sufficient  funds to enable it to pay the Purchase  Price in full in
accordance with the terms and provisions of Section 2.3.

         4.6 ATS Due Diligence  Investigation.  ATS and its Representatives have
performed a thorough,  complete and comprehensive due diligence investigation of
Seller,  including without  limitation an investigation of Seller's  businesses,
operations,  properties,  fixtures,  title to properties,  assets  (tangible and
intangible),  equipment, prospects,  personnel, employment arrangements,  Seller
Financial Statements, condition (financial or other), books, accounts, financial
records,  ledgers,  commitments and records (including Tax Returns), work papers
and other sources of financial  information possessed or controlled by Seller or
its accountants, contracts, agreements, leases, business environment, the Seller
Disclosure Schedule, and compliance with Governmental Authorizations, Applicable
Laws and Private  Authorizations  (the "Due Diligence  Investigation").  The Due
Diligence  Investigation  has not revealed to ATS any  information,  issues,  or
concerns  which,  in its reasonable  business  judgment,  individually or in the
aggregate,  materially  adversely affects, or is likely to materially  adversely
affect,  the Seller.  ATS and its  Representatives  represent  that Seller fully
cooperated with ATS as it conducted the Due Diligence  Investigation  and Seller
did not interfere with,  limit or impede the Due Diligence  Investigation in any
manner whatsoever.  ATS also represents that the Due Diligence Investigation has
been performed to its complete satisfaction.


                                    ARTICLE 5

                                    COVENANTS

         5.1 Access to Information; Confidentiality.

         (a) Seller shall afford to ATS and its accountants,  counsel,  lenders,
financial advisors and other representatives (the "Representatives") full access
during normal business hours  throughout the period prior to the Closing Date to
all of Seller's properties, books, contracts, commitments and records (including
without  limitation  Tax Returns)  relating to the Seller  Assets and the Seller
Business and, during such period, shall furnish promptly upon request (i) a copy
of each  report,  schedule and other  document  filed or received by any of them
pursuant  to the  requirements  of any  Applicable  Law or  filed by it with any
Authority  in  connection  with the  Transactions  or which may have an  adverse
effect  on  the  Seller  Assets  or  the  Seller  Business  or  the  businesses,
operations, properties, prospects, personnel, condition (financial or other), or
results of operations thereof, (ii) all financial records,  ledgers, work papers
and other sources of financial information possessed and controlled by Seller or
its accountants deemed by ATS or its Representatives necessary or useful for the
purpose of performing an audit of the Seller Assets and the Seller  Business and
certifying financial statements and financial information,  and (iii) such other
information in the possession or control of Seller or its accountants concerning
any of the foregoing as ATS shall reasonably request;  provided,  however,  that
Seller  shall not be required to permit any such access to the extent same would
unreasonably interfere with Seller's normal business operations.  All non-public
information relating to the Seller Assets or the Seller Business furnished prior
to the execution,  or pursuant to the provisions,  of this Agreement,  including
without  limitation  this  Section,  will be kept  confidential  and shall  not,
without the prior written  consent of Seller,  be disclosed by ATS in any manner
whatsoever,  in whole or in part, and shall not be used for any purposes,  other
than in

                                      -16-


<PAGE>



connection  with  the  Transactions.  In no  event  shall  ATS  or  any  of  its
Representatives  use such information to the detriment of Seller.  ATS agrees to
reveal such  information only to those of its  Representatives  or other Persons
who  need  to  know  such   information   for  the  purpose  of  evaluating  the
Transactions,  who are informed of the  confidential  nature of such information
and who shall  undertake to act in accordance  with the terms and  conditions of
this Agreement.  From and after the Closing, Seller shall not, without the prior
written  consent of ATS,  disclose  any  information  with respect to the Seller
Assets or the Seller  Business,  and no such  information  shall be used for any
purposes,  other  than in  connection  with the  Transactions  or to the  extent
required by Applicable Law.

         (b) Subject to the terms and  conditions  of Section  5.1(a),  ATS may,
subject to prior  consultation with Seller,  disclose such information as may be
necessary in connection with seeking all Governmental and Private Authorizations
or that is required by Applicable  Law to be  disclosed.  In the event that this
Agreement  is  terminated  for any  reason,  ATS shall  promptly  redeliver  all
non-public  written  material  provided  pursuant  to this  Section or any other
provision of this Agreement or otherwise in connection with the Transactions and
shall not retain any copies, extracts or other reproductions in whole or in part
of such written  material,  other than one copy thereof which shall be delivered
to independent counsel for ATS.

         (c)  Anything in this  Section or  elsewhere  in this  Agreement to the
contrary  notwithstanding,  either  party may disclose  information  received or
retained by it in accordance  with the  provisions  of this  Agreement if it can
demonstrate  (i) such  information  is  generally  available  to or known by the
public from a source other than the party seeking to disclose  such  information
or (ii) was obtained by the party  seeking to disclose such  information  from a
source other than the other party,  provided that such source was not bound by a
duty of confidentiality to the other party or another party with respect to such
information.

         (d) No investigation pursuant to this Section or otherwise shall affect
any  representation  or  warranty  in this  Agreement  of  either  party  or any
condition  to the  obligations  of the  parties  hereto,  except as set forth in
Section 8.3(e).

         5.2 Agreement to Cooperate.

         (a) Each of the parties  hereto shall use reasonable  business  efforts
(x) to take,  or cause to be taken,  all actions and to do, or cause to be done,
all things necessary, proper or advisable under Applicable Law to consummate the
Transactions,  and (y) to refrain from taking,  or cause to be taken, any action
and to refrain from doing or causing to be done, any thing which could impede or
impair the consummation of the Transactions,  including,  in all cases,  without
limitation  using its reasonable  business  efforts (i) to prepare and file with
the applicable  Authorities  as promptly as  practicable  after the execution of
this Agreement all requisite applications and amendments thereto,  together with
related information,  data and exhibits, necessary to request issuance of orders
approving the  Transactions  by all such applicable  Authorities,  each of which
must be obtained or become final to the extent provided in Section 6.1(a),  (ii)
to  obtain  all  necessary  or  appropriate  waivers,  consents  and  approvals,
including  without  limitation  those  referred to in Section  6.2(d),  (iii) to
effect all necessary  registrations,  filings and submissions (including without
limitation  all filings  necessary  for ATS to own and operate the Seller Assets
and conduct the Seller Business), (iv) to lift any injunction or other legal bar
to the  Transactions  (and,  in such case, to proceed with the  Transactions  as
expeditiously as possible), and (v) to obtain the satisfaction of the conditions
specified in Article 6, including  without  limitation the truth and correctness
as of  the  Closing  Date  as if  made  on and as of  the  Closing  Date  of the
representations   and  warranties  of  such  party  and  the   performance   and
satisfaction  as of the Closing  Date of all  agreements  and  conditions  to be
performed or satisfied by such party.

         (b) The parties shall  cooperate  with one another in the  preparation,
execution and filing of all Tax Returns, questionnaires,  applications, or other
documents regarding any real property transfer or gains,

                                      -17-


<PAGE>



sales, use, transfer, value added, stock transfer and stamp Taxes, any transfer,
recording,  registration  and other  fees,  and any similar  Taxes which  become
payable in connection with the Transactions that are required or permitted to be
filed on or before the Closing Date.

         (c) Seller shall cooperate and use its reasonable  business  efforts to
cause its independent  accountants to reasonably cooperate with ATS, and at ATS'
expense,  in order to enable  ATS to have its  independent  accountants  prepare
audited  financial  statements  for the  Seller  Business  described  in Section
6.2(g).  Without  limiting the generality of the  foregoing,  Seller agrees that
after the Closing Date it will (x) consent to the use of such audited  financial
statements in any  registration  statement or other document filed by ATS or any
Affiliate  of ATS under  any  applicable  federal  or state  securities  Law the
Securities  Act or the Exchange  Act and (y) execute and deliver,  and cause its
directors and officers to execute and deliver, such "representation"  letters as
are  customarily  delivered in  connection  with audits and as ATS'  independent
accountants may reasonably request under the circumstances.

         (d)  Seller  shall  use its best  efforts  to  diligently  conduct  and
conclude the Negotiations for the benefit of ATS, or to enter into or present to
ATS for execution and delivery the Santee Cooper  Contract,  as the case may be,
and conduct the  Negotiations  or the  negotiations  with  respect to the Santee
Cooper  Contract in at least a manner as if the  Negotiations  or execution  and
delivery of the Santee Cooper  Contract were for the sole and exclusive  benefit
of Seller.  ATS  agrees to  cooperate  and  support,  both  before and after the
Closing Date, Seller's efforts with respect to the foregoing.

         5.3  Public  Announcements.  Until  the  Closing,  or in the  event  of
termination  of this  Agreement,  and except as required  to obtain  third party
consents pursuant to this Agreement, Seller and ATS shall consult with the other
before issuing any press release or otherwise making any public  statements with
respect to this Agreement or the Transactions and shall not issue any such press
release  or make any such  public  statement  without  the prior  consent of the
other.  Notwithstanding  the foregoing,  each party acknowledges and agrees that
Seller and ATS may, without its prior consent, issue such press releases or make
such public  statements as may be required by Applicable  Law, in which case, to
the extent practicable, the party proposing to make such press release or public
statement will consult with the other  regarding the nature,  extent and form of
such press release or public  statement.  In addition,  subject to the terms and
conditions  hereof,  ATS may  disclose the subject  matter of this  Agreement to
Persons  with  whom  Seller  has  a  business  or  contractual  relationship  in
connection with ATS' due diligence investigation of Seller.

         5.4  Notification  of Certain  Matters.  Each party  shall give  prompt
notice  to the  other,  of the  occurrence  or  non-occurrence  of any Event the
occurrence  or  non-occurrence  of  which  would  be  likely  to  cause  (i) any
representation  or warranty made by it contained in this  Agreement to be untrue
or inaccurate in any respect such that one or more of the  conditions of Closing
might not be satisfied, or (ii) any covenant,  condition or agreement made by it
contained in this  Agreement not to be complied with or satisfied,  or (iii) any
change to be made in the Seller Disclosure Schedule in any respect such that one
or more of the  conditions of Closing  might not be  satisfied,  and any failure
made by it to comply with or satisfy, or be able to comply with or satisfy,  any
covenant,  condition  or  agreement  to be  complied  with  or  satisfied  by it
hereunder  in any  respect  such that one or more of the  conditions  of Closing
might not be  satisfied;  provided,  however,  that the  delivery  of any notice
pursuant  to this  Section  shall not limit or  otherwise  affect  the  remedies
available hereunder to the party receiving such notice.

         5.5 No  Solicitation.  Seller shall not, nor shall it knowingly  permit
any  of its  Representatives  (including,  without  limitation,  any  investment
banker,  broker,  finder,  attorney or accountant  retained by it) to, initiate,
solicit or facilitate,  directly or  indirectly,  any inquiries or the making of
any  proposal  with  respect  to  any  Alternative  Transaction,  engage  in any
discussions  or  negotiations  concerning,  or provide  to any other  Person any
information  or data relating to it for the purposes of, or otherwise  cooperate
in any way with or

                                      -18-


<PAGE>



assist or  participate  in, or  facilitate  any  inquiries  or the making of any
proposal which constitutes, or may reasonably be expected to lead to, a proposal
to seek or  effect  any  Alternative  Transaction,  or agree to or  endorse  any
Alternative Transaction. "Alternative Transaction" means a transaction or series
of related  transactions  (other  than the  Transactions)  resulting  in (i) any
merger or  consolidation,  regardless of whether Seller is the surviving  Entity
unless the surviving  Entity remains  obligated under this Agreement to the same
extent  as it  was,  or  (ii)  any  sale  or  other  disposition  of  all or any
substantial part of the Seller Assets or the Seller Business.  The provisions of
this Section shall apply to each of Seller's  Subsidiaries.  If Seller or any of
its  Representatives  receives  any  inquiry  with  respect  to  an  Alternative
Transaction while this Agreement is in effect, Seller shall inform the inquiring
party that it is not entitled to enter into discussions or negotiations relating
to an Alternative Transaction.

         5.6  Conduct of  Business  by Seller  Pending  the  Closing.  Except as
otherwise contemplated by this Agreement, after the date hereof and prior to the
Closing  Date  or  earlier  termination  of this  Agreement,  unless  ATS  shall
otherwise  agree in writing,  Seller shall, to the extent relating to the Seller
Business or the Seller Assets:

                  (a) conduct its  business in the  ordinary and usual course of
         business  and  consistent   with  past  practice,   including   without
         limitation the performance of such maintenance, repairs or replacements
         with respect to communication  towers,  fixtures and Personal  Property
         comprising the Seller Assets as is consistent with past practice;

                  (b) use all reasonable business efforts to preserve intact its
         business organizations and goodwill, keep available the services of its
         present  key   employees,   and  preserve  the  goodwill  and  business
         relationships  with customers and others having business  relationships
         with it;

                  (c) confer, as and when reasonably requested, on a regular and
         frequent  basis  with  one or  more  representatives  of ATS to  report
         material   operational  matters  and  the  general  status  of  ongoing
         operations;

                  (d) maintain with financially  responsible insurance companies
         insurance  on its assets and its  business in such  amounts and against
         such risks and losses as are consistent with past practice;

                  (e) use reasonable  business efforts to (i) operate the Seller
         Business in conformity in all material  respects with all  Governmental
         and Private  Authorizations,  Leases and Material Agreements on a basis
         consistent  with past  practice  and  Applicable  Law and the rules and
         regulations of any Authority with  jurisdiction  over the Seller Assets
         or the Seller Business,  and (ii) maintain in full force and effect all
         such  Governmental  and  Private  Authorizations,  Leases and  Material
         Agreements relating to the Seller Business;

                  (f) not (i)  dispose  of any of the  Seller  Assets  owned  by
         Seller or used in the operation of the Seller  Business (other than for
         the disposition in the ordinary course of business of immaterial assets
         that are of no further  use to the Seller  Business)  or (ii) modify or
         change in any material respect,  or enter into, any Material  Agreement
         relating to the Seller Business; and

                  (g) not voluntarily take any action which if taken between the
         end of its most  recent  fiscal  quarter  and prior to the date of this
         Agreement  would  have been  required  to be noted as an  exception  on
         Section 3.17 of the Seller Disclosure Schedule.

With respect to any  transaction or act proposed to be entered into or performed
by Seller which, pursuant to Sections 5.6(a) through 5.6(g),  requires the prior
approval of ATS, ATS shall be deemed to have approved

                                      -19-


<PAGE>



same unless  written notice of disapproval is received by Seller within five (5)
business  days after  receipt by ATS of a written  request for approval  made by
Seller.


                                    ARTICLE 6

                               CLOSING CONDITIONS

         6.1 Conditions to Obligations of Each Party to effect the Transactions.
The  respective  obligations  of each  party to effect the  Transactions  shall,
except as hereinafter  provided in this Section,  be subject to the satisfaction
at or prior to the Closing Date of the following conditions, any or all of which
may be waived, in whole or in part, to the extent permitted by Applicable Law:

                  (a) As of the Closing  Date,  no Legal Action shall be pending
         before or  threatened  in writing by any  Authority  seeking to enjoin,
         restrain,  prohibit or make illegal or to impose any materially adverse
         conditions in connection with, the consummation of the Transactions, it
         being understood and agreed that a written request by any Authority for
         information with respect to the  Transactions,  which information could
         be used in connection  with such Legal  Action,  shall not in itself be
         deemed to be a threat of any such Legal Action; and

                  (b) All authorizations, consents, waivers, orders or approvals
         required  to  be  obtained  from  all  Authorities,  and  all  filings,
         submissions, registrations, notices or declarations required to be made
         by ATS and Seller with any Authority,  prior to the consummation of the
         Transactions,  shall have been obtained  from,  and made with, all such
         Authorities, except for such authorizations, consents, waivers, orders,
         approvals,  filings,  registrations,  notices  or  declarations  or the
         failure  to  obtain  or make  would  not,  in the  reasonable  business
         judgment of ATS, have a material adverse effect on the Seller Assets or
         the Seller Business.

         6.2  Conditions to  Obligations of ATS. The obligation of ATS to effect
the  Transactions  shall  be  subject  to  the  satisfaction  of  the  following
conditions,  any or all of which  may be  waived,  in  whole or in part,  to the
extent permitted by Applicable Law:

                  (a) All agreements, certificates, opinions and other documents
         required to be delivered  pursuant to the  provisions of this Agreement
         shall be reasonably  satisfactory  in form,  scope and substance to ATS
         and its  counsel,  and ATS and its  counsel  shall  have  received  all
         information and copies of all documents, including records of corporate
         proceedings, which they may reasonably request in connection therewith,
         such documents where appropriate to be certified by proper  Authorities
         or corporate officers;

                  (b) Seller shall have furnished ATS and, at ATS' request,  any
         bank or other  financial  institution  providing  credit to ATS, with a
         favorable opinion, dated the Closing Date of Willoughby & Hoefer, P.A.,
         counsel for Seller, or other counsel reasonably acceptable to ATS, with
         respect  to the  matters  set forth in  Sections  3.1(a),  (b) and (c),
         3.7(b) and 3.14, and such other matters  arising after the date of this
         Agreement  and incident to the  Transactions,  as ATS or its counsel or
         its counsel may reasonably request or which may be reasonably requested
         by any such bank or financial institution or their respective counsel;

                  (c) The  representations and warranties of Seller contained in
         this  Agreement  or  otherwise  made in  writing by it or on its behalf
         pursuant hereto or otherwise made in connection  with the  Transactions
         shall be true and  correct in all  material  respects  at and as of the
         Closing Date with

                                      -20-


<PAGE>



         the same force and effect as though  made on and as of such date except
         those which speak as of a certain date which shall  continue to be true
         and  correct in all  material  respects  as of such date on the Closing
         Date (including  without limitation giving effect to any later obtained
         knowledge of Seller or ATS, except as otherwise  specifically  provided
         herein);  each and all of the agreements and conditions to be performed
         or satisfied by Seller  hereunder at or prior to the Closing Date shall
         have been duly  performed or satisfied  in all material  respects;  and
         Seller  shall  have  furnished  ATS with  such  certificates  and other
         documents  evidencing  the truth of such  representations,  warranties,
         covenants and  agreements  and the  performance  of such  agreements or
         conditions as ATS or its counsel shall have reasonably requested;

                  (d) All authorizations, consents, waivers, orders or approvals
         required by the  provisions  of this  Agreement to be obtained from all
         Persons  (other  than  Authorities)  prior to the  consummation  of the
         Transactions,  including  without  limitation  those  required  by  the
         provisions  of this  Agreement in order to vest fully in ATS all right,
         title and  interest  in and to all of the Seller  Assets and the Seller
         Business  (including  without  limitation  all Private  Authorizations,
         Leases and Material  Agreements  of Seller and, at the cost and expense
         of  Seller,   all   modifications  of  Leases  and  other   Contractual
         Obligations heretofore requested by ATS and set forth in Section 6.2(d)
         of the Seller Disclosure Schedule) and the full enjoyment thereof shall
         have been  obtained,  without the  imposition,  individually  or in the
         aggregate, of any condition or requirement which could adversely affect
         ATS;

                  (e) Between the date of this  Agreement  and the Closing Date,
         there shall not have  occurred and be continuing  any material  adverse
         change  in  Seller  from  that  reflected  in the  most  recent  Seller
         Financial  Statements;   as  of  the  Closing  Date,  the  Governmental
         Authorizations with respect to the ownership or operation of the Seller
         Assets  or the  conduct  of the  Seller  Business  shall  not have been
         materially  and  adversely  affected  by any act, or failure to act, of
         Seller;

                  (f) Seller  shall have  delivered  or cause to be delivered to
         ATS all of the Collateral Documents and other agreements, documents and
         instruments  required to be  delivered  by Seller to ATS at or prior to
         the Closing pursuant to the terms of this Agreement;

                  (g) ATS shall have received from Seller such  documentation as
         shall be reasonably  satisfactory to ATS indicating that an unqualified
         report with  respect to the  financial  statements  of Seller  could be
         issued if requested by ATS;

                  (h) As of the Closing  Date,  except as otherwise set forth in
         Section 3.7(a) of the Seller Disclosure Schedule, no Legal Action shall
         be pending  before or  threatened  in writing  by any  Authority  which
         might,  in the  reasonable  business  judgment  of ATS,  based upon the
         advice of counsel,  have a material adverse effect on the Seller Assets
         and the Seller Business,  it being understood and agreed that a written
         request  by  any  Authority  for   information   with  respect  to  the
         Transactions,  which  information could be used in connection with such
         Legal  Action,  shall not be  deemed  to be a threat of any such  Legal
         Action;

                  (i)  Kenneth  E.  Hall,  Seller  and  Tower,  Inc.  shall have
         executed and delivered to ATS an agreement substantially in the form of
         Exhibit  B  attached   hereto  and  made  a  part   hereof   (the  "ATS
         Noncompetition Agreement"), and Kenneth E. Hall shall have executed and
         delivered  to ATS an agreement  substantially  in the form of Exhibit C
         attached   hereto  and  made  a  part  hereof   (the  "ATS   Employment
         Agreement");

                  (j) The Phase I  Environmental  Reports  received  by ATS with
         respect to real property  owned or leased by Seller that is part of the
         Seller Assets shall not indicate any exceptions which

                                      -21-


<PAGE>



         would  indicate  a breach of  warranty  or  misrepresentation  (without
         regard to the knowledge  qualification)  of Seller set forth in Section
         3.21;

                  (k) Seller and each of the escrow  agents  named  therein (the
         "Indemnity  Escrow Agents") shall have executed and delivered to ATS an
         indemnity agreement (the "Indemnity Escrow Agreement") substantially in
         the form of Exhibit D attached hereto and made a part hereof;

                  (l) The title  reports  and/or CTLA title  insurance  policies
         received by ATS with respect to real  property  owned by Seller that is
         part of the Seller Assets shall not indicate any exceptions which would
         indicate a breach of warranty or  misrepresentation  (without regard to
         the knowledge qualification) of Seller set forth in Section 3.5; and

                  (m)  Seller  shall  have  executed  and  delivered  to  ATS an
         agreement,  in form, scope and substance reasonably satisfactory to ATS
         (the "Nonassignable Contracts Agreement"), pursuant to which (i) Seller
         will hold (but will have no obligation to perform services  thereunder)
         for the account of ATS, and remit promptly to ATS all amounts  received
         pursuant to the provisions of, all of the Nonassignable Contracts as to
         which the required approval or consent to the assignment or transfer of
         which was not obtained and as to which ATS has  delivered an Acceptance
         Notice, and (ii) ATS will agree to (A) perform all services required to
         be performed under such Nonassignable  Contracts,  (B) reimburse Seller
         for  all  costs  and  expenses  reasonably  incurred  pursuant  to  the
         Nonassignable  Contracts  Agreement and (C) indemnify and hold harmless
         Seller with respect to all actions  taken by ATS  pursuant  thereto and
         all actions,  if any, taken by Seller pursuant thereto other than those
         relating to the bad faith,  negligence or willful  misconduct of Seller
         or its officers, directors, stockholders or employees.

         6.3 Conditions to  Obligations  of Seller.  The obligation of Seller to
effect the  Transactions  shall be subject to the  satisfaction of the following
conditions,  any or all of which  may be  waived,  in  whole or in part,  to the
extent permitted by Applicable Law:

                  (a) All agreements, certificates, opinions and other documents
         required to be delivered  pursuant to the  provisions of this Agreement
         shall be reasonably satisfactory in form, scope and substance to Seller
         and its  counsel,  and Seller and its counsel  shall have  received all
         information and copies of all documents, including records of corporate
         proceedings, which they may reasonably request in connection therewith,
         such documents where appropriate to be certified by proper  Authorities
         or corporate officers;

                  (b) ATS shall have furnished Seller and, at Seller's  request,
         any bank of other  financial  institution  providing  credit to Seller,
         with favorable opinions, dated the Closing Date of Sullivan & Worcester
         LLP,  counsel for ATS, with respect to the matters set forth in Section
         4.1 and with respect to such other  matters  arising  after the date of
         this  Agreement  and  incident  to the  Transactions,  as Seller or its
         counsel may reasonably request or which may be reasonably  requested by
         any such bank or financial institution or their respective counsel;

                  (c) The  representations  and  warranties  of ATS contained in
         this  Agreement  or  otherwise  made in  writing by it or on its behalf
         pursuant hereto or otherwise made in connection  with the  Transactions
         shall be true and  correct in all  material  respects  at and as of the
         Closing Date with the same force and effect as though made on and as of
         such date except  those  which  speak as of a certain  date which shall
         continue  to be true and  correct in all  material  respects as of such
         date on the Closing Date (including without limitation giving effect to
         any later  obtained  knowledge  of Seller or ATS,  except as  otherwise
         specifically  provided  herein);  each  and all of the  agreements  and
         conditions to

                                      -22-


<PAGE>



         be performed  or satisfied by ATS  hereunder at or prior to the Closing
         Date  shall  have been duly  performed  or  satisfied  in all  material
         respects;  and ATS shall have furnished  Seller with such  certificates
         and  other  documents  evidencing  the  truth of such  representations,
         warranties,  covenants  and  agreements  and  the  performance  of such
         agreements or conditions as Seller or its counsel shall have reasonably
         requested;

                  (d) ATS  shall  have  delivered  or cause to be  delivered  to
         Seller all of the Collateral Documents and other agreements,  documents
         and  instruments  required to be delivered by ATS to Seller at or prior
         to the Closing pursuant to the terms of this Agreement;

                  (e)  ATS  shall  have  executed  and  delivered  to  Seller  a
         counterpart of the ATS Employment Agreement; and

                  (f) ATS shall  have  executed  and  delivered  to  Seller  the
         Nonassignable Contracts Agreement.


                                    ARTICLE 7

                        TERMINATION, AMENDMENT AND WAIVER

         7.1 Termination.  This Agreement may be terminated at any time prior to
the Closing Date:

                  (a) by mutual consent of Seller and ATS;

                  (b) by  either  ATS or  Seller  if any  permanent  injunction,
         decree or judgment by any Authority  preventing the consummation of the
         Transactions shall have become final and nonappealable; or

                  (c) by  Seller in the  event  (i)  Seller  is not in  material
         breach of this Agreement and none of its  representations or warranties
         shall have become and  continue to be untrue in any  material  respect,
         and (ii) either (A) the Transactions have not been consummated prior to
         the Termination Date or (B) ATS is in material breach of this Agreement
         or any of its  representations  or  warranties  shall  have  become and
         continue  to be untrue in any  material  respect,  and such a breach or
         untruth exists and is not capable of being cured by and will prevent or
         delay  consummation  of the  Transactions  by or beyond the Termination
         Date; or

                  (d) by ATS in the event (i) ATS is not in  material  breach of
         this Agreement and none of its representations or warranties shall have
         become and  continue  to be untrue in any  material  respect,  and (ii)
         either  (A) the  Transactions  have not been  consummated  prior to the
         Termination  Date or (B) Seller is in material breach of this Agreement
         or any of its  representations  or  warranties  shall  have  become and
         continue  to be untrue in any  material  respect,  and such a breach or
         untruth exists and is not capable of being cured by and will prevent or
         delay  consummation  of the  Transactions  by or beyond the Termination
         Date; or

         The term "Termination  Date" shall mean May 31, 1997 or such other date
as the parties may, from time to time, mutually agree.

         The right of ATS or Seller to terminate this Agreement pursuant to this
Section shall remain  operative  and in full force and effect  regardless of any
investigation made by or on behalf of either party, any Person

                                      -23-


<PAGE>



controlling any such party or any of their  respective  Representatives  whether
prior to or after the execution of this Agreement.

         7.2 Effect of Termination.

         (a)   Except  as   provided   in   Sections   5.1  (with   respect   to
confidentiality),  5.3 and 9.3 and this Section, in the event of the termination
of this  Agreement  pursuant to Section  7.1,  or in the event the  Transactions
shall not have been consummated  prior to the end of business on the Termination
Date, this Agreement shall forthwith become void, there shall be no liability on
the part of either party, or any of their respective  shareholders,  officers or
directors,  to the other and all rights and  obligations  of either  party shall
cease;  provided,  however, that such termination shall not relieve either party
from  liability for any  misrepresentation  or breach of any of its  warranties,
covenants or agreements set forth in this Agreement.

         (b) In the event this Agreement is terminated by Seller or ATS pursuant
to the provisions of Section 7.1(c) or 7.1(d), respectively, then Seller or ATS,
as the terminating  party,  shall be entitled to liquidated damages of an amount
equal to the Escrow Deposit,  together with interest and other earnings thereon,
or  $100,000,  as the case may be,  it  being  agreed  that  such  amount  shall
constitute  full  payment for any and all  damages  suffered by Seller or ATS by
reason of the other's  failure to consummate  the  Transactions.  ATS and Seller
agree in advance that actual  damages  would be difficult to ascertain  and that
such liquidated  damages is a fair and equitable  amount to reimburse Seller for
damages  sustained due to ATS' failure to consummate  the  Transactions  for the
above-stated  reasons. In addition, in the event this Agreement is terminated by
ATS pursuant to the provisions of Section 7.1(d),  then ATS shall be entitled to
a return of the  Escrow  Deposit,  together  with  interest  and other  earnings
thereon,  together  with  without  prejudice  to ATS'  right to pursue  specific
performance hereunder.  Notwithstanding the foregoing, each party shall have the
right to seek specific performance pursuant to the provisions of Section 9.5.

         (c)  In  the  event  this  Agreement  is  terminated  pursuant  to  the
provisions of Section  7.1(a) or 7.1(b),  except as provided in Section  7.2(a),
neither of the parties  shall have any further  rights or remedies,  except that
ATS shall be entitled to the Escrow Deposit, together with interest and earnings
thereon.


                                    ARTICLE 8

                                 INDEMNIFICATION

         8.1  Survival.  The  representations  and  warranties  of  the  parties
contained in or made pursuant to this Agreement or any Collateral Document shall
survive the Closing and shall remain  operative and in full force and effect for
a period  ending on the later of (i) one (1) year from the Closing  Date or (ii)
the earlier of (x) the termination of all negotiations with Santee Cooper or (y)
the  acquisition  by ATS (or Seller) of the Utility  Assets or the execution and
delivery of the Santee Cooper  Contract,  irrespective of the application of any
applicable  statute of limitations.  The covenants and agreements of the parties
contained in or made pursuant to this Agreement or any Collateral Document shall
survive the Closing and shall remain  operative and in full force and effect for
the statute of  limitations  applicable  to  contractual  obligations.  The term
"Indemnity  Period"  shall mean the  applicable  period with  respect to which a
representation, warranty, covenant or agreement survives the Closing as provided
in this Section. No claim for indemnification,  other than with respect to fraud
or intentional  and willful breach or  misrepresentation,  may be asserted after
the expiration of the Indemnity Period.  Notwithstanding  anything herein to the
contrary, any representation,  warranty, covenant and agreement which arises and
is the subject of a Claim which is asserted in writing  prior to the  expiration
of the applicable  Indemnity  Period shall survive with respect to such Claim or
any dispute with respect thereto until the final resolution thereof.

                                      -24-


<PAGE>




         8.2 Indemnification.  Each of Seller and ATS (the "indemnifying party")
agrees that on and after the Closing it shall  indemnify  and hold  harmless the
other (the  "indemnified  party") from and against any and all damages,  claims,
losses,  expenses,   costs,  obligations  and  liabilities,   including  without
limitation liabilities for all reasonable attorneys',  accountants' and experts'
fees  and  expenses  including  those  incurred  to  enforce  the  terms of this
Agreement or any Collateral  Document  executed by it  (collectively,  "Loss and
Expense"),  suffered, directly or indirectly, by the indemnified party by reason
of, or arising out of:

                  (a) any  breach  of  representation  or  warranty  made by the
         indemnifying  party  pursuant  to  this  Agreement  or  any  Collateral
         Document  executed  by it or any failure by the  indemnifying  party to
         perform or fulfill any of its  respective  covenants or agreements  set
         forth in this Agreement or any Collateral Document executed by it; or

                  (b) any  Legal  Action  or  other  Claim  by any  third  party
         relating  to the  indemnifying  party  or,  in the  case  of  ATS,  the
         ownership  or  operations  of the Seller  Assets or the  conduct of the
         business  of the Seller  Business  to the extent  such Legal  Action or
         other Claim has also resulted in a breach of representation or warranty
         by the indemnifying  party pursuant to this Agreement or any Collateral
         Document executed by it; or

                  (c) in the  case of  Seller  as the  indemnifying  party,  the
         failure of Seller to comply with Bulk Sales law of the South  Carolina;
         or

                  (d) in the case of Seller as the indemnifying party, by reason
         of, or arising out of, (i) Seller  Nonassumed  Obligations  or (ii) the
         ownership and  operation of the Seller  Assets and the Seller  Business
         prior to the Closing Date; or

                  (e) in the case of ATS as the  indemnifying  party,  by reason
         of, or  arising  out of,  (i) Seller  Assumed  Obligations  or (ii) the
         ownership and  operation of the Seller  Assets and the Seller  Business
         from and after the Closing Date,  except for Events arising prior to or
         existing  on the  Closing  Date,  unless  they are  part of the  Seller
         Assumed Obligations.

         8.3 Limitation of Liability.

         (a)  Notwithstanding  the provisions of Section 8.2, after the Closing,
except as otherwise provided in Section 8.6, each indemnified  party's rights to
indemnification  shall  be  subject  to  the  following  limitations:   (i)  the
indemnified  party  shall be entitled to recover its Loss and Expense in respect
of any Claim  only in the event  that the  aggregate  Loss and  Expense  for all
Claims exceeds, in the aggregate,  $25,000, in which event the indemnified party
shall be  entitled  to  recover  all such Loss and  Expense  (including  without
limitation  such  $25,000),  and (ii) in no event  shall  the  aggregate  amount
required to be paid by each  indemnifying  party  pursuant to the  provisions of
this Article  exceed the sum of (x) $100,000  plus (y) in the event ATS acquires
the Utility Assets or enters into the Santee Cooper Contract, an amount equal to
the  lesser of (I)  $200,000  or (II) the  Utility  Asset  Price or the  Utility
Management Price, as the case may be, except for any Loss or Expense arising out
of matters of a nature  referred  to in  Sections  3.1(b),  3.1(c) and 4.1 as to
which the limitations set forth in this clause (ii) shall not apply.

         (b)  Anything  in this  Agreement,  including  without  limitation  the
provisions of Sections 8.2 or 8.3(a), to the contrary notwithstanding, except as
provided in Section  8.6,  (i) the  exclusive  recourse of ATS after the Closing
with  respect to the  liability  of Seller  pursuant to Section 8.2 or any other
provision of this Agreement or Applicable  Law which requires  Seller to defend,
indemnify or hold harmless ATS from or against any Claim,  Loss or Expense shall
be (x) the Escrow Indemnity Funds (including interest or other

                                      -25-


<PAGE>



earnings thereon) and (y) in the event ATS acquires the Utility Assets or enters
into the  Santee  Cooper  Contract,  the  Utility  Asset  Price  or the  Utility
Management  Price,  as the case may be, to the extent  provided in clause (y) of
Section 8.3(a);  and (ii) ATS' remedies for any such liability of Seller, or for
any Claim arising under this Agreement, shall be limited to its right to recover
from (x) the Escrow  Indemnity  Funds in accordance  with the  provisions of the
Escrow  Indemnity  Agreement  and (y) the  Utility  Asset  Price or the  Utility
Management  Price,  as the case may be, to the extent  provided in clause (y) of
Section   8.3(a),   and  neither  ATS  nor  any  of  its  officers,   directors,
shareholders,  agents or  Affiliated  Entities  shall have any right of recovery
against  Seller  or any of its  officers,  directors,  shareholders,  agents  or
Affiliated Entities or against the assets of any of them for any such liability.

         (c) In the event there shall be no Claims pursuant to the provisions of
this Agreement with respect to the Escrow Indemnity  Funds, if any,  existing at
the  expiration of one (1) year after the Closing,  the Escrow  Indemnity  Funds
then remaining  (together with any then existing  interest or earnings) shall be
distributed  to the  Persons  entitled  thereto.  In the  event one or more such
Claims with respect to the Escrow  Indemnity Funds, if any, shall exist upon the
expiration of the Indemnity  Period,  funds in an amount equal to the sum of (i)
the aggregate amount of such Claims and (ii) the amount reasonably determined by
ATS to be  necessary  to cover the fees,  expense  and other costs which will be
required  to  resolve  such  Claims  shall  be  retained  as part of the  Escrow
Indemnity  Funds and the balance  thereof,  if any,  shall be distributed to the
Persons entitled thereto. Upon the resolution of all such Claims and the payment
of all such fees,  expenses  and costs out of the Escrow  Indemnity  Funds,  the
remainder of the Escrow  Indemnity  Funds,  if any,  shall be distributed to the
Persons entitled thereto.

         (d) In the case any event shall occur  which  would  otherwise  entitle
either  party  to  assert a claim  for  indemnification  hereunder,  no Loss and
Expense  shall be deemed to have been  sustained  by such party to the extent of
any proceeds  received by such party from any  insurance  policies  with respect
thereto.

         8.4 Notice of Claims.  If an  indemnified  party  believes  that it has
suffered or incurred  any Loss and  Expense,  it shall  notify the  indemnifying
party promptly in writing,  and in any event within the  applicable  time period
specified in Section 8.1, describing such Loss and Expense,  all with reasonable
particularity  and containing a reference to the provisions of this Agreement in
respect of which such Loss and Expense shall have occurred.  If any Legal Action
is  instituted  by a third  party  with  respect to which an  indemnified  party
intends  to claim any  liability  or  expense  as Loss and  Expense  under  this
Article,  such indemnified party shall promptly notify the indemnifying party of
such Legal Action, but the failure to so notify the indemnifying party shall not
relieve such indemnifying party of its obligations under this Article, except to
the extent such failure to notify prejudices such  indemnifying  party's ability
to defend against such Claim.

         8.5 Defense of Third Party Claims.  The  indemnifying  party shall have
the right to  conduct  and  control,  through  counsel  of their  own  choosing,
reasonably  acceptable to the indemnified party, any third party Legal Action or
other Claim, but the indemnified party may, at its election,  participate in the
defense  thereof at its sole cost and expense;  provided,  however,  that if the
indemnifying  party shall fail to defend any such Legal  Action or other  Claim,
then the indemnified party may defend, through counsel of its own choosing, such
Legal Action or other Claim, and (so long as it gives the indemnifying  party at
least fifteen (15) days' notice of the terms of the proposed  settlement thereof
and permits the indemnifying party to then undertake the defense thereof) settle
such Legal Action or other Claim and to recover the amount of such settlement or
of any  judgment and the  reasonable  costs and  expenses of such  defense.  The
indemnifying party shall not compromise or settle any such Legal Action or other
Claim without the prior written consent of the indemnified  party, which consent
shall not be  unreasonably  withheld,  delayed or  conditioned  if the terms and
conditions of such compromise or settlement  proposed by the indemnifying  party
and agreed to in writing by the  claimant  in such Legal  Action or other  Claim
(the "Settlement  Proposal") (a) include a full release of the indemnified party
from the Legal Action or other Claim which is the subject of the Settlement

                                      -26-


<PAGE>



Proposal,  and (b) if the  indemnified  party is ATS, do not include any term or
condition which would restrict in any material manner the continued ownership or
operations  of the  Seller  Assets or the  conduct  of the  Seller  Business  in
substantially the manner then being theretofore owned, operated and conducted by
ATS.

         8.6  Exclusive  Remedy.   Except  for  fraud,  willful  or  intentional
misrepresentation  or willful or  intentional  breach of  warranty,  covenant or
agreement or as otherwise provided in Section 9.5, the indemnification  provided
in this Article shall be the sole and exclusive post-Closing remedy available to
either party against the other party for any Claim under this Agreement.


                                    ARTICLE 9

                               GENERAL PROVISIONS


         9.1  Amendment.  This Agreement may be amended from time to time by the
parties  hereto at any time prior to the Closing Date but only by an  instrument
in writing signed by the parties hereto.

         9.2 Waiver. At any time prior to the Closing Date, except to the extent
not  permitted  by  Applicable  Law,  ATS or Seller  may extend the time for the
performance  of any of the  obligations  or other  acts of the  other,  subject,
however,  to the  provisions  with respect to the  Termination  Date,  waive any
inaccuracies in the representations and warranties of the other contained herein
or in any document  delivered pursuant hereto, and waive compliance by the other
with any of the agreements,  covenants or conditions  contained herein. Any such
extension or waiver shall be valid only if set forth in an instrument in writing
signed by the party or parties to be bound thereby.

         9.3 Fees, Expenses and Other Payments. All costs and expenses, incurred
in connection  with any transfer  taxes,  sales taxes,  recording or documentary
taxes,  stamps or other charges levied by any Authority in connection  with this
Agreement and the consummation of the  Transactions  shall be borne by ATS up to
an aggregate of $15,000 and, any amount in excess thereof, equally by Seller and
ATS. All other costs and expenses incurred in connection with this Agreement and
the  consummation of the  Transactions,  including  without  limitation fees and
disbursements  of counsel,  financial  advisors and accountants  incurred by the
parties  hereto,  shall be borne  solely  and  entirely  by the party  which has
incurred such costs and expenses.

         9.4  Notices.  All  notices  and  other  communications  which  by  any
provision of this Agreement are required or permitted to be given shall be given
in  writing  and shall be (a)  mailed by  first-class  or  express  mail,  or by
recognized  courier  service,  postage  prepaid,  (b) sent by  telex,  telegram,
telecopy  or other form of rapid  transmission,  confirmed  by mailing (by first
class or express  mail,  or by  recognized  courier  service,  postage  prepaid)
written  confirmation at substantially the same time as such rapid transmission,
or (c)  personally  delivered  to the  receiving  party  (which if other than an
individual  shall be an  officer  or other  responsible  party of the  receiving
party). All such notices and communications  shall be mailed,  sent or delivered
as follows:


                                      -27-


<PAGE>



         (a)      If to ATS:

                  6400 North Congress Avenue, Suite 1750
                  Boca Raton, Florida 33487
                  Attention: Chief Operating Officer and
                                Chief Financial Officer
                  Telecopier No.: (407) 998-2278

                  with copies to:

                  American Radio Systems Corporation
                  116 Huntington Avenue
                  Boston, Massachusetts 02116
                  Attention:   Joseph L. Winn, Chief Financial Officer
                  Telecopier No.:  (617) 375-7575

                           and

                  Sullivan & Worcester LLP
                  One Post Office Square
                  Boston, Massachusetts 02109
                  Attention:  Norman A. Bikales, Esq.
                  Telecopier No.:  (617) 338-2880

         (b)      If to Seller:

                  124 Winding Road
                  Irmo, South Carolina 29063
                  Attention:   Kenneth E. Hall
                  Telecopier No.: (803) 749-9727

                  with a copy to:

                  Willoughby & Hoefer, P.A.
                  1022 Calhoun Street, Suite 302
                  P.O. Box 8416
                  Columbia, SC 29202-8416
                  Attention:   Alvis Bynum, Esq.
                  Telecopier No.: (803) 256-8062

or to such other person(s),  telex or facsimile  number(s) or address(es) as the
party to receive any such communication or notice may have designated by written
notice to the other party.

         9.5  Specific  Performance;  Other  Rights  and  Remedies.  Each  party
recognizes and agrees that in the event the other party should refuse to perform
any of its  obligations  under this  Agreement or any Collateral  Document,  the
remedy at law would be inadequate and agrees that for breach of such provisions,
each party shall,  in addition to such other  remedies as may be available to it
at law or in equity or as  provided  in Article  7, be  entitled  to  injunctive
relief and to enforce its rights by an action for  specific  performance  to the
extent permitted by Applicable Law. Each party hereby waives any requirement for
security  or the post ing of any bond or other  surety  in  connection  with any
temporary or permanent award of injunctive,

                                      -28-


<PAGE>



mandatory or other equitable relief. Nothing herein contained shall be construed
as  prohibiting  each party from  pursuing  any other  remedies  available to it
pursuant to the provisions of, and subject to the limitations contained in, this
Agreement for such breach or threatened breach. Notwithstanding the foregoing or
any  provision  of this  Agreement to the  contrary,  after the Closing Date ATS
shall not be entitled to specific  performance or any other remedy to the extent
that the cost to Seller arising from the  enforcement or exercise of such remedy
would exceed the amount of the Escrow  Indemnity  Funds,  in accordance with the
provisions  of the  Escrow  Indemnity  Agreement,  for all  costs  and  expenses
incurred in connection  with its  performance  of or compliance  with the remedy
exercised or enforced.

         9.6  Severability.  If any term or provision of this Agreement shall be
held or deemed  to be, or shall in fact be,  invalid,  inoperative,  illegal  or
unenforceable  as  applied  to  any  particular  case  in  any  jurisdiction  or
jurisdictions,  or in  all  jurisdictions  or  in  all  cases,  because  of  the
conflicting of any provision with any  constitution or statute or rule of public
policy or for any other reason,  such circumstance  shall not have the effect of
rendering the provision or provisions in question invalid, inoperative,  illegal
or unenforceable in any other  jurisdiction or in any other case or circumstance
or of rendering any other  provision or  provisions  herein  contained  invalid,
inoperative,  illegal or  unenforceable to the extent that such other provisions
are not themselves actually in conflict with such constitution,  statute or rule
of public policy, but this Agreement shall be reformed and construed in any such
jurisdiction or case as if such invalid,  inoperative,  illegal or unenforceable
provision had never been contained herein and such provision reformed so that it
would be valid,  operative and  enforceable to the maximum  extent  permitted in
such jurisdiction or in such case.  Notwithstanding the foregoing,  in the event
of any such  determination  the  effect  of which is to  affect  materially  and
adversely either party, the parties shall negotiate in good faith to modify this
Agreement  so as to effect  the  original  intent of the  parties  as closely as
possible to the fullest  extent  permitted by  Applicable  Law in an  acceptable
manner to the end that the  Transactions  are fulfilled and  consummated  to the
maximum extent possible.

         9.7   Counterparts.   This   Agreement   may  be  executed  in  several
counterparts,  each of  which  shall be  deemed  an  original,  but all of which
together shall constitute one and the same  instrument,  binding upon all of the
parties. In pleading or proving any provision of this Agreement, it shall not be
necessary to produce more than one of such counterparts.

         9.8 Section Headings.  The headings contained in this Agreement are for
reference  purposes  only  and  shall  not in any  way  affect  the  meaning  or
interpretation of this Agreement.

         9.9 Governing Law; Venue.  The validity,  interpretation,  construction
and  performance  of this  Agreement  shall be  governed  by, and  construed  in
accordance  with,  the  applicable  laws of the United States of America and the
laws of the State of South  Carolina  applicable to contracts made and performed
in such State and, in any event, without giving effect to any choice or conflict
of laws  provision  or  rule  that  would  cause  the  application  of  domestic
substantive  laws of any other  jurisdiction.  Anything in this Agreement to the
contrary notwithstanding, including without limitation the provisions of Article
8, in the event of any  dispute  between the  parties  which  results in a Legal
Action,   the   prevailing   party  shall  be  entitled  to  receive   from  the
non-prevailing  party  reimbursement  for  reasonable  legal  fees and  expenses
incurred by such  prevailing  party in such Legal Action.  Venue for all actions
arising  hereunder  shall be in the Federal  District Court sitting in Columbia,
South  Carolina,  and the parties  agree to submit to the  jurisdiction  of such
court.

         9.10 Further Acts. Each party agrees that at any time, and from time to
time, before and after the consummation of the transactions contemplated by this
Agreement,  it  will do all  such  things  and  execute  and  deliver  all  such
Collateral  Documents  and other  assurances,  as any other party or its counsel
reasonably  deems  necessary  or  desirable  in order to carry out the terms and
conditions of this Agreement and the

                                      -29-


<PAGE>



transactions  contemplated  hereby or to facilitate  the enjoyment of any of the
rights created hereby or to be created hereunder.

         9.11  Entire  Agreement.  This  Agreement  (together  with  the  Seller
Disclosure  Schedule and the other Collateral  Documents delivered in connection
herewith),  constitutes  the entire  agreement of the parties and supersedes all
prior agreements and undertakings,  both written and oral,  between the parties,
with respect to the subject matter hereof,  including  without  limitation  that
certain letter of intent, dated December 19, 1996, between the parties.

         9.12 Assignment. This Agreement shall not be assignable by either party
and any such  assignment  shall be null and void,  except that it shall inure to
the benefit of and by binding  upon any  successor  to any party by operation of
law,  including by way of merger,  consolidation or sale of all or substantially
all of its assets,  and ATS may assign its rights and remedies  hereunder to any
bank or other financial institution which has loaned funds or otherwise extended
credit to it.

         9.13  Parties in  Interest.  This  Agreement  shall be binding upon and
inure  solely to the  benefit of each  party,  and  nothing  in this  Agreement,
express or implied,  is  intended to or shall  confer upon any Person any right,
benefit or remedy of any nature whatsoever under or by reason of this Agreement,
except as otherwise provided in Section 9.12.

         9.14  WAIVER  OF  TRIAL  BY  JURY.  SELLER  AND ATS  HEREBY  KNOWINGLY,
VOLUNTARILY AND  INTENTIONALLY  WAIVE ANY RIGHT THEY MAY HAVE TO A TRIAL BY JURY
IN RESPECT OF ANY  LITIGATION  ARISING OUT OF, UNDER OR IN CONNECTION  WITH THIS
AGREEMENT OR THE TRANSACTIONS CONTEMPLATED HEREIN.

         9.15 Mutual Drafting. This Agreement is the result of the joint efforts
of Seller and ATS,  and each  provision  hereof  has been  subject to the mutual
consultation,  negotiation  and  agreement  of the parties and there shall be no
construction  against  either  party based on any  presumption  of that  party's
involvement in the drafting thereof.


                                      -30-


<PAGE>



         IN WITNESS  WHEREOF,  ATS and Seller have caused this  Agreement  to be
executed  as of the  date  first  written  above by  their  respective  officers
thereunto duly authorized.

                          American Tower Systems, Inc.


                          By:
                               Name:
                               Title:

                          Towers L.L.C.


                          By:
                               Name:
                               Title:



                                      -31-


<PAGE>



                                                                      APPENDIX A

                                   DEFINITIONS

         As used in this Agreement,  unless the context otherwise requires,  the
following  terms  (or any  variant  in the  form  thereof)  have  the  following
respective  meanings.  Terms  defined in the  singular  shall have a  comparable
meaning when used in the plural, and vice versa, and the reference to any gender
shall be deemed to include all genders.  Unless otherwise defined or the context
otherwise clearly  requires,  terms for which meanings are provided herein shall
have  such  meanings  when  used in the  Seller  Disclosure  Schedule,  and each
Collateral  Document  executed or required  to be  executed  pursuant  hereto or
thereto or otherwise  delivered,  from time to time, pursuant hereto or thereto.
References  to "hereof",  "herein" or similar terms are intended to refer to the
Agreement  as a whole and not a  particular  Section,  and  references  to "this
Section"  are  intended  to refer to the  entire  Section  and not a  particular
subsection thereof.  The term "either party" shall, unless the context otherwise
requires, refer to Seller and ATS.

         Acceptance Notice shall have the meaning given to it in Section 2.2(c).

         Accounts Receivable shall mean (a) any and all rights to the payment of
money or other forms of  consideration  of any kind at any time now or hereafter
owing or to be owing to Seller attributable to the ownership or operation of the
Seller Business  (whether  classified  under the Uniform  Commercial Code of any
state as accounts,  contract  rights,  chattel  paper,  general  intangibles  or
otherwise),  including without limitation accounts receivable, letters of credit
and the right to receive payment thereunder,  chattel paper, insurance proceeds,
contract rights, notes, drafts,  instruments,  documents,  acceptances,  and all
other debts, obligations and liabilities in whatever form now or hereafter owing
from any other Person, all guarantees, security and Liens for the payment of any
thereof,  and all of Seller's rights to goods, now owned or hereafter  acquired,
sold (delivered,  undelivered,  in transit or returned) which may be represented
thereby; and (b) all proceeds of any of the foregoing.

         adverse,  adversely, when used alone or in conjunction with other terms
(including  without  limitation  "affect," "change" and "effect") shall mean any
Event which is reasonably likely, in the reasonable business judgment of ATS, to
be expected to (a)  adversely  affect the  validity  or  enforceability  of this
Agreement  or  the  likelihood  of  consummation  of  the  Transactions,  or (b)
adversely affect the business, operations,  management, properties or prospects,
or the  condition,  financial  or other,  or results of  operation of the Seller
Business,  or (c) impair Seller's  ability to fulfill its obligations  under the
terms of this  Agreement,  or (d)  adversely  affect  the  aggregate  rights and
remedies  of ATS  under  this  Agreement.  Notwithstanding  the  foregoing,  and
anything in this Agreement to the contrary notwithstanding,  any Event generally
affecting the economy or the tower  communications  business shall not be deemed
to constitute such a change, affect or effect.

         Affiliate,  Affiliated shall mean, with respect to any Person,  (a) any
other Person at the time  directly or indirectly  controlling,  controlled by or
under direct or indirect  common control with such Person,  (b) any other Person
of which such Person at the time owns, or has the right to acquire,  directly or
indirectly,  twenty  percent  (20%) or more of any class of the capital stock or
beneficial  interest,  (c) any other Person  which at the time owns,  or has the
right to acquire,  directly or  indirectly,  twenty percent (20%) or more of any
class of the  capital  stock or  beneficial  interest  of such  Person,  (d) any
executive  officer  or  director  of  such  Person,  (e)  with  respect  to  any
partnership,  joint venture or similar Entity, any general partner thereof,  and
(f) when used with respect to an  individual,  shall  include any member of such
individual's immediate family or a family trust.


                                       A-1


<PAGE>



         Agreement shall mean this Agreement as originally in effect, including,
unless the context otherwise specifically requires,  this Appendix A, the Seller
Disclosure  Schedule  and all exhibits  hereto,  and as any of the same may from
time to time be supplemented, amended, modified or restated in the manner herein
or therein provided.

         Applicable Law shall mean any Law of any Authority, whether domestic or
foreign,  including  without  limitation  the  FCA  and all  federal  and  state
securities and  Environmental  Laws, to which a Person is subject or by which it
or any of its business or operations is subject or any of its property or assets
is bound.

         Assets shall mean the business and the tangible and  intangible  assets
used in connection  with the conduct of the business or operations of the Seller
Business,  which  business  and  assets  are  being  exchanged,  transferred  or
otherwise conveyed hereunder, including without including without limitation the
following:

                  (a)      the Personal Property;

                  (b)      the Real Property;

                  (c)      the Governmental Authorizations;

                  (d)      the Private Authorizations;

                  (e)  the   Contracts   (other   than  the  Seller   Nonassumed
         Obligations);

                  (f) the corporate name of Seller and all variations thereof;

                  (g)  all   Intellectual   Property   and   other   proprietary
         information,  which relate to the Seller  Business,  including  without
         limitation,  technical  information  and data,  machinery and equipment
         warranties, maps, computer discs and tapes, plans, diagrams, blueprints
         and schematics,  including filings with all Authorities which relate to
         the Seller Business;

                  (h) all claims,  choses in action and rights under  warranties
         relating to the Seller Business or any of the Seller Assets;

                  (i)  all  books  and  records  relating  to the  ownership  or
         operation of the Seller  Assets or the conduct of the Seller  Business,
         including  executed  copies of Leases,  Material  Agreements  and other
         written  Contracts,  and all records  required by Applicable  Law to be
         kept,  subject to the right of the  conveying  party to have such books
         and records  made  available  to it for such time as may be  reasonably
         required in connection with audits, defense or prosecution of lawsuits,
         or other legitimate  business  purposes.  The records  described herein
         shall not  include  corporate  seals,  certificates  of  incorporation,
         minute books,  stock books,  tax returns or other records  having to do
         with the corporate organization of Seller; and

                  (j)  any  and all  products,  profits  and  proceeds  of,  and
         including  without  limitation  any Claims with  respect to, any of the
         foregoing;

provided, however, that notwithstanding the foregoing, the term Assets shall not
include any of the Excluded Assets.

         ATS shall have the meaning given to it in the Preamble.


                                       A-2


<PAGE>



         ATS Employment  Agreement shall have the meaning given to it in Section
6.2(i).

         ATS  Noncompetition  shall  have the  meaning  given  to it in  Section
6.2(i).

         Authority shall mean any governmental or quasi-governmental  authority,
whether  administrative,  executive,  judicial,  legislative  or  other,  or any
combination   thereof,   including  without   limitation  any  federal,   state,
territorial,   county,   municipal  or  other   government  or  governmental  or
quasi-governmental agency, arbitrator,  authority,  board, body, branch, bureau,
central bank or comparable  agency or Entity,  commission,  corporation,  court,
department,  instrumentality,  master, mediator, panel, referee, system or other
political unit or  subdivision or other Entity of any of the foregoing,  whether
domestic or foreign., including without limitation the FCC.

         Benefit Arrangement shall mean any material benefit arrangement that is
not a Plan,  including  (a)  any  employment  or  consulting  agreement  (b) any
arrangement providing for insurance coverage or workers' compensation  benefits,
(c) any  incentive  bonus or deferred  bonus  arrangement,  (d) any  arrangement
providing termination  allowance,  severance or similar benefits, (e) any equity
compensation plan, (f) any deferred  compensation plan, and (g) any compensation
policy and  practice,  but only to the  extent  that it covers or relates to any
officer, employee or other Person involved in the ownership and operation of the
Assets or the conduct of the business of the Seller Business.

         Claims shall mean any and all debts, liabilities,  obligations, losses,
damages,  deficiencies,  assessments  and  penalties,  together  with all  Legal
Actions, pending or threatened, claims and judgments of whatever kind and nature
relating  thereto,  and all fees, costs,  expenses and disbursements  (including
without  limitation  reasonable  attorneys'  and  other  legal  fees,  costs and
expenses) relating to any of the foregoing.

         Closing shall have the meaning given to it in Section 2.3.

         Closing Date shall have the meaning given to it in Section 2.3.

         COBRA shall mean the Consolidated Omnibus Budget  Reconciliation Act of
1985,  as  amended,  as set  forth  in  Section  4980B of the Code and Part 6 of
Subtitle B of Title I of ERISA.

         Code shall mean the Internal  Revenue  Code of 1986,  and the rules and
regulations  thereunder,  all as from time to time in effect,  or any  successor
law,  rules or  regulations,  and any  reference to any  statutory or regulatory
provision  shall be deemed  to be a  reference  to any  successor  statutory  or
regulatory provision.

         Collateral  Document  shall mean the Escrow  Agreement,  the  Indemnity
Escrow Agreement, the ATS Employment  Agreement(s),  the Nonassignable Contracts
Agreement, bills of sale, assignments of intangibles, assumption agreements with
respect to the Seller Assumed  Obligations,  other instruments of conveyance and
assignment sufficient to vest in ATS title to all of the other Seller Assets and
the Seller Business, and any other agreement, certificate, contract, instrument,
notice,  opinion or other document  delivered pursuant to the provisions of this
Agreement or any Collateral Document.

         Collection Period shall have the meaning given to it in Section 2.4.

         Contract, Contractual Obligation shall mean any agreement, arrangement,
commitment,  contract, covenant,  indemnity,  undertaking or other obligation or
liability  which involves the ownership or operation of the Seller Assets or the
conduct of the Seller Business.


                                       A-3


<PAGE>



         Control (including the terms  "controlled,"  "controlled by" and "under
common control with") means the possession, directly or indirectly or as trustee
or executor,  of the power to direct or cause the direction of the management or
policies of a Person,  or the disposition of such Person's assets or properties,
whether through the ownership of stock, equity or other ownership,  by contract,
arrangement or understanding,  or as trustee or executor,  by contract or credit
arrangement or otherwise.

         Debt Adjustment shall mean an amount equal to the amount owed by Seller
on the Closing Date to First Community Bank, Lexington, South Carolina, which is
estimated to equal approximately $340,000.

         Due  Diligence  Investigation  shall  have the  meaning  given to it in
Section 4.6.

         Employment   Arrangement  shall  mean,  with  respect  to  Seller,  any
employment,  consulting,  retainer,  severance or similar  contract,  agreement,
plan,  arrangement or policy (exclusive of any which is terminable within thirty
(30) days  without  liability,  penalty  or payment of any kind by Seller or any
Affiliate), or providing for severance, termination payments, insurance coverage
(including any  self-insured  arrangements),  workers  compensation,  disability
benefits,   life,  health,   medical,   dental  or   hospitalization   benefits,
supplemental unemployment benefits,  vacation or sick leave benefits, pension or
retirement benefits or for deferred compensation, profit-sharing, bonuses, stock
options,  stock  purchase or  appreciation  rights or other  forms of  incentive
compensation  or  post-retirement  insurance,  compensation  or  post-retirement
insurance, compensation or benefits, or any collective bargaining or other labor
agreement,  whether or not any of the foregoing is subject to the  provisions of
ERISA, but only to the extent that it covers or relates to any officer, employee
or other Person  involved in the  ownership or operation of the Seller Assets or
the conduct of the Seller Business.

         Encumber  shall  mean  to  suffer,  accept,  agree  to  or  permit  the
imposition of a Lien.

         Entity shall mean any corporation,  firm, unincorporated  organization,
association,  partnership,  limited  liability  company,  trust  (inter vivos or
testamentary),  estate of a deceased, insane or incompetent individual, business
trust,  joint stock  company,  joint  venture or other  organization,  entity or
business,  whether acting in an individual,  fiduciary or other capacity, or any
Authority.

         Environmental Law shall mean any Law relating to or otherwise  imposing
liability or  standards of conduct  concerning  pollution or  protection  of the
environment,   including   without   limitation   Laws  relating  to  emissions,
discharges,  releases or  threatened  releases of  Hazardous  Materials or other
chemicals or  industrial  pollutants,  substances,  materials or wastes into the
environment (including,  without limitation,  ambient air, surface water, ground
water,  mining or reclamation or mined land, land surface or subsurface  strata)
or otherwise relating to the manufacture,  processing, generation, distribution,
use, treatment, storage, disposal, cleanup, transport or handling of pollutants,
contaminants,  chemicals or industrial, toxic or hazardous substances, materials
or wastes. Environmental Laws shall include without limitation the Comprehensive
Environmental  Response,  Compensation and Liability Act (42 U.S.C. Section 6901
et seq.), the Hazardous Material  Transportation Act (49 U.S.C.  Section 1801 et
seq.),  the Resource  Conservation  and Recovery Act (42 U.S.C.  Section 6901 et
seq.), the Federal Water Pollution Control Act (33 U.S.C. Section 1251 et seq.),
the Clean Air Act (42 U.S.C. Section 7401 et seq.), the Toxic Substances Control
Act (15 U.S.C. Section 2601 et seq.), the Occupational Safety and Health Act (29
U.S.C.  Section 651 et seq.), the Federal Insecticide  Fungicide and Rodenticide
Act (7  U.S.C.  Section  136 et  seq.),  and  the  Surface  Mining  Control  and
Reclamation  Act of 1977 (30 U.S.C.  Section  1201 et seq.),  and any  analogous
federal,   state,  local  or  foreign,  Laws,  and  the  rules  and  regulations
promulgated  thereunder all as from time to time in effect, and any reference to
any statutory or regulatory  provision  shall be deemed to be a reference to any
successor statutory or regulatory provision.


                                       A-4


<PAGE>



         Environmental Permit shall mean any Governmental Authorization required
by or pursuant to any Environmental Law.

         ERISA shall mean the Employee  Retirement  Income Security Act of 1974,
and the rules and regulations thereunder, all as from time to time in effect, or
any successor law, rules or  regulations,  and any reference to any statutory or
regulatory  provision  shall  be  deemed  to be a  reference  to  any  successor
statutory or regulatory provision.

         ERISA  Affiliate  shall  mean any  Person  that is  treated as a single
employer  with Seller  under  Sections  414(b),  (c),  (m) or (o) of the Code or
Section 4001(b)(1) of ERISA.

         Escrow  Agent shall have the meaning  given to it in the third  Whereas
paragraph.

         Escrow  Agreement  shall  have the  meaning  given  to it in the  third
Whereas paragraph.

         Escrow  Deposit shall have the meaning given to it in the third Whereas
paragraph.

         Event  shall  mean the  existence  or  occurrence  of any act,  action,
activity,  circumstance,  condition,  event,  fact,  failure  to act,  omission,
incident or practice, or any set or combination of any of the foregoing.

         Exchange Act shall mean the  Securities  Exchange Act of 1934,  and the
rules and  regulations  thereunder,  all as from time to time in effect,  or any
successor  law,  rules or  regulations,  and any  reference to any  statutory or
regulatory  provision  shall  be  deemed  to be a  reference  to  any  successor
statutory or regulatory provision.

         Excluded Assets shall have the meaning given to it in Section 2.1.

         Existing Asset Cost Flow Multiple shall have the meaning given to it in
Section 2.3(e).

         FCA  shall  mean the  Communication  Act of  1934,  and the  rules  and
regulations  thereunder,  all as from time to time in effect,  or any  successor
law,  rules or  regulations,  and any  reference to any  statutory or regulatory
provision  shall be deemed  to be a  reference  to any  successor  statutory  or
regulatory provision.

         FCC shall mean the Federal Communications  Commission and shall include
any successor Authority.

         Final  Order  shall  mean,  with  respect to any  Authority,  including
without  limitation  the FCC, one with respect to which no appeal,  no stay,  no
petition or application for rehearing, reconsideration,  review or stay, whether
on motion of the applicable Authority or other Person or otherwise, and no other
Legal Action contesting such consent or approval, is in effect or pending and as
to  which  the  time or  deadline  for  filing  any  such  appeal,  petition  or
application  or other Legal  Action has expired or, if filed,  has been  denied,
dismissed or  withdrawn,  and the time or deadline for  instituting  any further
Legal Action has expired.

         GAAP shall mean means,  except to the extent that a deviation therefrom
is expressly required by this Agreement, such principles applied on a consistent
basis,  (i) as set forth in Opinions of the Accounting  Principles  Board of the
American  Institute  of  Certified  Public   Accountants   ("AICPA")  and/or  in
statements of the Financial  Accounting  Standards  Board that are applicable in
the  circumstances as of the date in question,  (ii) when not inconsistent  with
such  opinions  and  statements,  as set forth in other AICPA  publications  and
guidelines  and/or  (iii)  that  otherwise  arise by custom  for the  particular
industry, all as the same shall exist on the date of this Agreement.


                                       A-5


<PAGE>



         Governmental  Authorizations  shall  mean all  approvals,  concessions,
consents,   franchises,   licenses,  permits,  plans,  registrations  and  other
authorizations  of all  Authorities,  including  without  limitation the Federal
Aviation  Administration,  in connection  with the ownership or operation of the
Seller Assets or the conduct of the Seller Business.

         Governmental  Filings shall mean all filings,  including  franchise and
similar Tax  filings,  and the payment of all fees,  assessments,  interest  and
penalties associated with such filings, with all Authorities.

         Hazardous  Materials  shall mean and include any  substance,  material,
waste, constituent, compound, chemical, natural or man-made element or force (in
whatever state of matter):  (a) the presence of which requires  investigation or
remediation under any Environmental  Law, or (b) that is defined as a "hazardous
waste" or  "hazardous  substance"  under any  Environmental  Law; or (c) that is
toxic, explosive,  corrosive,  etiologic,  flammable,  infectious,  radioactive,
carcinogenic,   mutagenic  or  otherwise  hazardous  and  is  regulated  by  any
applicable Authority or subject to any Environmental Law; or (d) the presence of
which on the real property owned or leased by such Person causes or threatens to
cause a nuisance upon any such real property or to adjacent  properties or poses
or threatens to pose a hazard to the health or safety of persons on or about any
such real property;  or (e) the presence of which on adjacent  properties  could
constitute a trespass by such Person; or (f) that contains gasoline, diesel fuel
or other  petroleum  hydrocarbons,  or any  by-products  or  fractions  thereof,
natural gas,  polychlorinated  biphenyls ("PCBs") and PCB-containing  equipment,
radon or other radioactive elements,  ionizing radiation,  electromagnetic field
radiation  and other  non-ionizing  radiation,  sonic  forces and other  natural
forces,  lead,  asbestos  or  asbestos-containing  materials  ("ACM"),  or  urea
formaldehyde foam insulation.

         Indebtedness  shall mean,  with  respect to any Person,  (a) all items,
except  items of  capital  stock or of  surplus  or of  general  contingency  or
deferred tax reserves or any minority  interest in any Subsidiary of such Person
to the extent such interest is treated as a liability with indeterminate term on
the  consolidated  balance sheet of such Person,  which in accordance  with GAAP
would be included in  determining  total  liabilities  as shown on the liability
side of a balance sheet of such Person, (b) all obligations  secured by any Lien
to which any property or asset owned or held by such Person is subject,  whether
or not the obligation  secured  thereby shall have been assumed,  and (c) to the
extent not  otherwise  included,  all  Contractual  Obligations  of such  Person
constituting  capitalized leases and all obligations of such Person with respect
to Leases constituting part of a sale and leaseback arrangement.

         Indebtedness  for Money  Borrowed  shall mean,  with respect to Seller,
money borrowed and Indebtedness represented by notes payable and drafts accepted
representing   extensions  of  credit,  all  obligations   evidenced  by  bonds,
debentures,  notes or other similar instruments, the maximum amount currently or
at any time thereafter  available to be drawn under all  outstanding  letters of
credit  issued  for the  account of such  Person,  all  Indebtedness  upon which
interest  charges are  customarily  paid by such  Person,  and all  Indebtedness
(including  capitalized lease obligations)  issued or assumed as full or partial
payment  for  property  or  services,  whether  or not any such  notes,  drafts,
obligations or Indebtedness represent Indebtedness for money borrowed, but shall
not include (a) trade payables,  (b) expenses  accrued in the ordinary course of
business,  (c) customer advance payments and customer  deposits  received in the
ordinary course of business,  or (d) conditional sales agreements not prohibited
by the terms of this Agreement.

         Indemnity  Escrow  Agent shall have the meaning  given to it in Section
6.2(k).

         Indemnity  Escrow  Agreement  shall  have  the  meaning  given to it in
Section 6.2(k).

         Indemnity  Escrow  Fund shall have the  meaning  given to it in Section
2.3.


                                       A-6


<PAGE>



         Intangible  Assets shall mean all assets and property  lacking physical
properties the evidence of ownership of which must  customarily be maintained by
independent  registration,  documentation,  certification,  recordation or other
means,  and  shall  include,   without  limitation,   concessions,   copyrights,
franchises,  license, patents, permits, service marks, trademarks,  trade names,
and applications with respect to any of the foregoing, technology and know-how.

         Intellectual  Property  shall mean any and all  research,  information,
inventions,  designs,  procedures,  developments,   discoveries,   improvements,
patents and applications therefor, trademarks and applications therefor, service
marks, trade names, copyrights and applications therefor,  logos, trade secrets,
drawing, plans, systems,  methods,  specifications,  computer software programs,
tapes, discs and related data processing  software (including without limitation
object and source  codes)  owned by such Person or in which it has an  ownership
interest  and all other  manufacturing,  engineering,  technical,  research  and
development data and know-how made, conceived, developed and/or acquired by such
Person,  which  relate  to the  manufacture,  production  or  processing  of any
products  developed  or sold by such  Person or which are within the scope of or
usable in connection  with such Person's  business as it may, from time to time,
hereafter be conducted or proposed to be conducted.

         Law shall mean any (a) administrative,  judicial,  legislative or other
action,  code,  consent  decree,  constitution,  decree,  directive,  enactment,
finding, guideline, law, injunction, interpretation, judgment, order, ordinance,
policy statement,  proclamation,  promulgation,  regulation,  requirement, rule,
rule of law, rule of public policy,  settlement  agreement,  statute, or writ of
any  Authority,  domestic  or  foreign;  (b) the common  law,  or other legal or
quasi-legal  precedent;  or (c)  arbitrator's,  mediator's  or referee's  award,
decision,  finding or recommendation;  including, in each such case or instance,
any interpretation,  directive,  guideline or request, whether or not having the
force of law including, in all cases, without limitation any particular section,
part or provision thereof.

         Lease  shall mean any lease of  property,  whether  real,  personal  or
mixed, and all amendments thereto.

         Legal  Action  shall  mean,  with  respect to any  Person,  any and all
litigation   or   legal   or   other   actions,   arbitrations,   counterclaims,
investigations, proceedings, requests for material information by or pursuant to
the  order of any  Authority  or  suits,  at law or in  arbitration,  equity  or
admiralty,  whether or not  purported  to be  brought on behalf of such  Person,
affecting such Person or any of such Person's business, property or assets.

         Lien shall mean any of the  following:  mortgage;  lien  (statutory  or
other);  or other security  agreement,  arrangement or interest;  hypothecation,
pledge  or  other  deposit  arrangement;  assignment;  charge;  levy;  executory
seizure;   attachment;   garnishment;   encumbrance   (including  any  easement,
exception,  reservation or limitation,  right of way, and the like); conditional
sale,  title  retention  or other  similar  agreement,  arrangement,  device  or
restriction;   preemptive  or  similar  right;  any  financing  lease  involving
substantially  the same economic  effect as any of the foregoing;  the filing of
any financing  statement under the Uniform  Commercial Code or comparable law of
any  jurisdiction;  restriction on sale,  transfer,  assignment,  disposition or
other alienation; or any option, equity, claim or right of or obligation to, any
other Person, of whatever kind and character.

         Loss and Expense shall have the meaning given to it in Section 8.2.

         material, materially or materiality for the purposes of this Agreement,
shall, unless specifically stated to the contrary,  be determined without regard
to the fact that various  provisions of this Agreement set forth specific dollar
amounts.


                                       A-7


<PAGE>



         Material  Agreement shall mean, with respect to Seller, any Contractual
Obligation  which (a) was not entered into in the  ordinary  course of business,
(b) was entered into in the ordinary  course of business  which (i) involved the
purchase,  sale or lease  of  goods  or  materials,  or  purchase  of  services,
aggregating  more than $20,000  during any of the last three fiscal years,  (ii)
extends for more than three (3)  months,  or (iii) is not  terminable  on thirty
(30) days or less  notice  without  penalty  or other  payment,  (c)  involves a
capitalized  lease  obligation or  Indebtedness  for Money  Borrowed,  (d) is or
otherwise   constitutes   a   written   agency,   broker,    dealer,    license,
distributorship,   sales  representative  or  similar  written  agreement,   (e)
accounted  for more  than  three  percent  (3%) of the  revenues  of the  Seller
Business in any of the last three  fiscal years or is likely to account for more
than three  percent (3%) of revenues of the Seller  Business  during the current
fiscal year, (f) is with any Authority, or (g) involves the management by Seller
of any communication tower of any other Person.

         Multiemployer  Plan shall mean a Plan which is a  "multiemployer  plan"
within the meaning of Section 4001(a)3 of ERISA.

         Negotiations shall have the meaning given in Section 2.3.

         Nonassignable  Contracts  shall have the meaning given to it in Section
2.2(c).

         Nonassignable Contracts Agreement shall have the meaning given to it in
Section 6.2(m).

         Organic  Document  shall  mean,  with  respect  to a Person  which is a
corporation,  its charter,  its by-laws and all shareholder  agreements,  voting
trusts and similar arrangements applicable to any of its capital stock and, with
respect to a Person which is a  partnership,  its agreement and  certificate  of
partnership,  any  agreements  among  partners,  and any  management and similar
agreements  between the partnership  and any general  partners (or any Affiliate
thereof).

         PBGC shall mean the Pension Benefit Guaranty Corporation and any Entity
succeeding to any or all of its functions under ERISA.

         Permitted  Liens shall mean (a) Liens for current taxes not yet due and
payable, (b) such imperfections of title, easements,  encumbrances and mortgages
or  other  Liens,  if  any,  as  are  not,  individually  or in  the  aggregate,
substantial in character,  amount or extent and do not  materially  detract from
the value, or materially interfere with the present use, of the property subject
thereto or affected thereby,  or otherwise  materially impair the conduct of the
Seller Business,  and (c) such other Liens as are permitted by the provisions of
this Agreement to be in place on the Closing Date.

         Person shall mean any natural individual or any Entity.

         Personal  Property shall mean all of the machinery,  equipment,  tools,
vehicles, furniture, leasehold improvements, office equipment, plant, inventory,
spare parts and other  tangible  personal  property which are owned or leased by
Seller and used or useful as of the date hereof in the  conduct of the  business
or operations of the Seller Business,  plus such additions thereto and deletions
therefrom arising in the ordinary course of business between the date hereof and
the Closing Date.

         Plan shall mean,  with respect to any Person and at a particular  time,
any employee benefit plan which is covered by ERISA and in respect of which such
Person or an ERISA  Affiliate is (or, if such plan were terminated at such time,
would under  Section 4069 of ERISA be deemed to be) an  "employer" as defined in
Section  3(5) of ERISA,  but only to the extent that it covers or relates to any
officer, employee or other Person involved in the ownership and operation of the
Assets or the conduct of the business of the Seller Business.

                                       A-8


<PAGE>



         Prepaid Expense shall mean any item which in accordance with GAAP would
be treated as an expense and which has been paid by Seller  prior to the Closing
and relates to a period subsequent to the Closing.

         Prepaid Revenue shall mean any item which in accordance with GAAP would
be treated as revenue and which has been received by Seller prior to the Closing
and relates to a period subsequent to the Closing.

         Private Authorizations shall mean all approvals, concessions, consents,
franchises,  licenses,  permits,  and other authorizations of all Persons (other
than   Authorities)   including   without   limitation  those  with  respect  to
Intellectual Property.

         Pro Ratable Taxes shall mean real estate and other property  Taxes,  ad
valorem Taxes,  gross  receipts  Taxes and similar Taxes,  but shall not include
federal, state or local income Taxes, franchise Taxes or other Taxes measured by
or based upon income or gain on sale or other disposition of property or assets.

         Purchase Price shall have the meaning given to it in Section 2.3.

         Real Property shall mean all of the fee estates and buildings and other
fixtures and improvements  thereon,  leasehold  interest,  easements,  licenses,
rights to access,  right-of-  way, and other real  property  interest  which are
owned or used by Seller as of the date hereof,  in the  operations of the Seller
Business,  plus such additions  thereto and deletions  therefrom  arising in the
ordinary course of business between the date hereof and the Closing Date.

         Regulations  shall mean the federal income tax regulations  promulgated
under  the Code,  as such  Regulations  may be  amended  from time to time.  All
references  herein to specific  sections of the Regulations shall be deemed also
to refer to any  corresponding  provisions  of succeeding  Regulations,  and all
references  to  temporary  Regulations  shall  be  deemed  also to  refer to any
corresponding provisions of final Regulations.

         Representatives shall have the meaning given to it in Section 5.1(a).

         Securities Act shall mean the Securities Act of 1933, and the rules and
regulations  thereunder,  all as from time to time in effect,  or any  successor
law,  rules or  regulations,  and any  reference to any  statutory or regulatory
provision  shall be deemed  to be a  reference  to any  successor  statutory  or
regulatory provision.

         Santee Cooper shall have the meaning given to it in Section 2.3(b).

         Santee  Cooper  Contract  shall have the meaning given to it in Section
2.3(c).

         Seller shall have the meaning given to it in the Preamble.

         Seller Assumable  Agreements shall mean all obligations and liabilities
of Seller under all Leases,  Material Agreements,  Governmental  Authorizations,
Private  Authorizations  and other  Contractual  Obligations  not required to be
listed on Section  3.16 of the Seller  Disclosure  Schedule  entered into in the
ordinary course of business and relating to the ownership or operation of any of
the Seller Assets or the
conduct of the Seller Business.

         Seller Assets shall have the meaning given to it in Section 2.1.

         Seller  Assumed  Liabilities  shall  have  the  meaning  given to it in
Section 2.2(b).


                                       A-9


<PAGE>



         Seller  Business shall have the meaning given them in the first Whereas
paragraph.

         Seller Disclosure  Schedule shall mean the Seller  Disclosure  Schedule
dated as of the date of this Agreement delivered by Seller to ATS.

         Seller Employees shall have the meaning given it in the Section 3.15.

         Seller  Financial  Statements  shall  have the  meaning  given to it in
Section 3.2(b).

         Seller  Nonassumed  Obligations  shall have the meaning  given to it in
Section 2.2(b).

         Seller's  knowledge means the actual knowledge of any Seller officer or
senior  manager,  as such knowledge  exists on the date of this Agreement and no
later date, after reasonable review of appropriate Seller records.

         Subsidiary shall mean, with respect to a Person,  any Entity a majority
of the capital stock  ordinarily  entitled to vote for the election of directors
of which,  or if no such voting stock is  outstanding,  a majority of the equity
interests of which, is owned directly or indirectly, legally or beneficially, by
such Person or any other Person controlled by such Person.

         Tax (and "Taxable",  which shall mean subject to Tax), shall mean, with
respect to any Person,  (a) all taxes (domestic or foreign),  including  without
limitation any income (net, gross or other including  recapture of any tax items
such as  investment  tax  credits),  alternative  or add-on  minimum tax,  gross
income,  gross receipts,  gains,  sales, use, leasing,  lease, user, ad valorem,
transfer, recording, franchise, profits, property (real or personal, tangible or
intangible),  fuel,  license,  withholding on amounts paid to or by such Person,
payroll,  employment,  unemployment,  social security, excise, severance, stamp,
occupation, premium, environmental or windfall profit tax, custom, duty or other
tax, or other like  assessment or charge of any kind  whatsoever,  together with
any  interest,  levies,  assessments,  charges,  penalties,  addition  to tax or
additional  amount  imposed  by any Taxing  Authority,  (b) any joint or several
liability of such Person with any other Person for the payment of any amounts of
the type  described in (a) and (c) any  liability of such Person for the payment
of any  amounts  of the type  described  in (a) as a result  of any  express  or
implied obligation to indemnify any other Person.

         Tax  Claim  shall  mean any Claim  which  relates  to Taxes,  including
without limitation the representations and warranties set forth in Section 3.11.

         Tax Return or Returns shall mean all returns, consolidated or otherwise
(including without limitation  information  returns),  required to be filed with
any Authority with respect to Taxes.

         Taxing   Authority  shall  mean  any  Authority   responsible  for  the
imposition of any Tax.

         Termination Date shall have the meaning given to it in Section 7.1.

         Transactions shall mean the transactions contemplated to be consummated
on or prior to the Closing Date,  including without  limitation the purchase and
sale of the Seller Assets and the Seller  Business and the  execution,  delivery
and performance of the Collateral Documents.

         Utility  Assets  Price  shall have the  meaning  given to it in Section
2.3(e).

         Utility  Cash  Flow  Multiple  shall  have the  meaning  given to it in
Section 2.3(e).


         Utility  Management Price shall have the meaning given to it in Section
2.3(f).


                                      A-10

                                                                   Exhibit 10.4a












                            ASSET PURCHASE AGREEMENT

                                 By and Between

                          AMERICAN TOWER SYSTEMS, INC.

                                       and

                           DIABLO COMMUNICATIONS, INC.

                                   Dated as of

                                  July 8, 1997











<PAGE>




<TABLE>
<CAPTION>
                                TABLE OF CONTENTS

<S>               <C>                                                                                            <C>
ARTICLE 1         DEFINED TERMS...................................................................................1

ARTICLE 2         SALE AND PURCHASE OF ASSETS.....................................................................2
                  2.1      Agreement to Sell and Buy..............................................................2
                  2.2      Assumption of Liabilities and Obligations. ............................................2
                  2.3      Closing; Purchase Price................................................................5
                  2.4      Accounts Receivable....................................................................6

ARTICLE 3         REPRESENTATIONS AND WARRANTIES OF DIABLO........................................................8
                  3.1      Organization and Business; Power and Authority; Effect of Transaction..................8
                  3.2      Financial and Other Information.  .....................................................9
                  3.3      Changes in Condition...................................................................9
                  3.4      Materiality............................................................................9
                  3.5      Title to Properties; Leases............................................................9
                  3.6      Compliance with Private Authorizations................................................11
                  3.7      Compliance with Governmental Authorizations and Applicable Law........................11
                  3.8      Intangible Assets.....................................................................12
                  3.9      Related Transactions..................................................................12
                  3.10     Insurance.............................................................................12
                  3.11     Tax Matters.  ........................................................................13
                  3.12     Employee Retirement Income Security Act of 1974.......................................13
                  3.13     Absence of Sensitive Payments.........................................................15
                  3.14     Inapplicability of Specified Statutes.................................................15
                  3.15     Employment Arrangements...............................................................15
                  3.16     Material Agreements...................................................................16
                  3.17     Ordinary Course of Business...........................................................16
                  3.18     Material and Adverse Restrictions.....................................................17
                  3.19     Broker or Finder......................................................................17
                  3.20     Solvency..............................................................................17
                  3.21     Environmental Matters.................................................................17

ARTICLE 4         REPRESENTATIONS AND WARRANTIES OF ATS..........................................................18
                  4.1      Organization and Business; Power and Authority; Effect of Transaction.................18
                  4.2      Broker or Finder......................................................................18
                  4.3      Solvency..............................................................................18
                  4.4      No Legal Action.......................................................................19

ARTICLE 5         COVENANTS......................................................................................19
                  5.1      Access to Information; Confidentiality................................................19
                  5.2      Agreement to Cooperate.  .............................................................20
                  5.3      Public Announcements..................................................................20
                  5.4      Notification of Certain Matters.......................................................21
                  5.5      No Solicitation.......................................................................21
                  5.6      Conduct of Business by Diablo Pending the Closing.....................................21
                  5.7      Preliminary Title Reports.............................................................22
                  5.8      Environmental Site Assessments........................................................23
                  5.9      Post-Closing Covenants and Agreements of the Parties..................................24

ARTICLE 6         CLOSING CONDITIONS.............................................................................24

                                       

<PAGE>



                  6.1      Conditions to Obligations of Each Party to effect the Transactions....................24
                  6.2      Conditions to Obligations of ATS......................................................25
                  6.3      Conditions to Obligations of Diablo...................................................28

ARTICLE 7         TERMINATION, AMENDMENT AND WAIVER..............................................................29
                  7.1      Termination...........................................................................29
                  7.2      Effect of Termination.................................................................29

ARTICLE 8         INDEMNIFICATION................................................................................30
                  8.1      Survival..............................................................................30
                  8.2      Indemnification.......................................................................31
                  8.3      Limitation of Liability...............................................................31
                  8.4      Notice of Claims......................................................................33
                  8.5      Defense of Third Party Claims.........................................................33
                  8.6      Exclusive Remedy......................................................................34

ARTICLE 9         GENERAL PROVISIONS.............................................................................34
                  9.1      Amendment.............................................................................34
                  9.2      Waiver................................................................................34
                  9.3      Fees, Expenses and Other Payments.....................................................34
                  9.4      Notices...............................................................................34
                  9.5      Specific Performance; Other Rights and Remedies.......................................35
                  9.6      Severability..........................................................................36
                  9.7      Counterparts..........................................................................36
                  9.8      Section Headings......................................................................36
                  9.9      Governing Law; Venue..................................................................36
                  9.10     Further Acts..........................................................................36
                  9.11     Entire Agreement......................................................................36
                  9.12     Assignment............................................................................37
                  9.13     Parties in Interest...................................................................37
                  9.14     Mutual Drafting.......................................................................37
                  9.15     Arbitration...........................................................................37
                  9.16     Disclosure Schedule...................................................................37
</TABLE>

APPENDIX A:                Definitions

SCHEDULES:

         Diablo Disclosure Schedule

EXHIBITS:

         EXHIBIT A         Form of Noncompetition Agreement (Section 6.2(j))
         EXHIBIT B         Form of Indemnity Escrow Agreement (Section 6.2(k))



                                      -ii-

<PAGE>




                            ASSET PURCHASE AGREEMENT

         This Asset Purchase Agreement (this "Agreement") is dated as of July 8,
1997 by and  between  American  Tower  Systems,  Inc.,  a  Delaware  corporation
("ATS"), and Diablo Communications, Inc., a California corporation ("Diablo").

         WHEREAS,  Diablo owns and leases and operates  communication towers and
is engaged in the  business of managing  communication  sites for third  parties
(the "Diablo Business");

         WHEREAS,  ATS desires to purchase and Diablo  desire to sell the Diablo
Assets and the  Diablo  Business  on the terms and  conditions  hereinafter  set
forth;

         WHEREAS,  simultaneously  with  the  execution  and  delivery  of  this
Agreement,  ATS and Diablo have  entered into an escrow  agreement  (the "Escrow
Agreement") with Bank of San Francisco (the "Escrow  Agent"),  pursuant to which
ATS has made a deposit of $1,800,000 (the "Escrow Deposit");

         WHEREAS,  ATS is party  to an  asset  purchase  agreement  with  Diablo
Communications of Southern California,  Inc., a California corporation ("DCSC"),
dated as of the date of this Agreement (the "Other Agreement"),  relating to the
purchase  and sale of the  communication  towers and the  business  of  managing
communication sites for third parties of DCSC; and

         WHEREAS,  ATS and Diablo have heretofore  executed and delivered a Note
Purchase Agreement, dated as of March 20, 1997 (the "Note Agreement"),  pursuant
to which Diablo has issued an unsecured note in the aggregate  principal  amount
of up to Six Hundred Fifty Thousand Dollars  ($650,000) (the "Interim  Financing
Note");

         NOW,  THEREFORE,  in  consideration  of  the  above  premises  and  the
covenants and agreements contained herein, the parties,  intending to be legally
bound, do hereby covenant and agree as follows:


                                    ARTICLE 1

                                  DEFINED TERMS

         As used  herein,  unless  the  context  otherwise  requires,  the terms
defined in  Appendix A shall have the  respective  meanings  set forth  therein.
Terms defined in the singular  shall have a comparable  meaning when used in the
plural,  and vice  versa,  and the  reference  to any gender  shall be deemed to
include all genders.  Unless otherwise  defined or the context otherwise clearly
requires,  terms for which  meanings are provided in this  Agreement  shall have
such meanings when used in the Diablo  Disclosure  Schedule and each  Collateral
Document  executed  or required  to be  executed  pursuant  hereto or thereto or
otherwise  delivered,  from time to time,  pursuant hereto or thereto.  The term
"either party" shall, unless the context otherwise requires, refer to Diablo and
ATS.



                                                   


<PAGE>



                                    ARTICLE 2

                           SALE AND PURCHASE OF ASSETS

         2.1 Agreement to Sell and Buy.  Subject to the terms and conditions set
forth in this  Agreement,  Diablo  hereby agrees to sell,  assign,  transfer and
deliver to ATS at the Closing,  and ATS agrees to purchase at the  Closing,  the
Diablo Assets and the Diablo Business, free and clear of any Liens of any nature
whatsoever except for Permitted Liens. For purposes of this Agreement,  the term
"Diablo Assets" shall mean all of the Assets of Diablo,  other than the Excluded
Assets.  For purposes of this Agreement,  the term "Excluded  Assets" shall mean
the following Assets:

                  (a)      all cash and cash equivalents;

                  (b)      all Accounts Receivable;

                  (c) a  certificate  of deposit  in the face  amount of $70,000
         pledged as collateral on New England Capital loan;

                  (d) all books and records  (including without  limitation,  if
         retained by Diablo,  any  financial  records  necessary or desirable to
         enable the condition specified in Section 6.2(g) to be satisfied) which
         Diablo is required by Applicable Law to retain, subject to the right of
         ATS to have access and to copy for a period of three (3) years from the
         Closing  Date;  the records  described  herein  shall  further  include
         without limitation all corporate seals,  certificates of incorporation,
         minute books,  stock books,  Tax Returns or other records  having to do
         with the corporate organization of Diablo;

                  (e) any pension,  profit-sharing  or employee  benefit  plans,
         including any assets in any related trusts;

                  (f) the miscellaneous assets of Diablo and the personal assets
         of the officers,  directors,  shareholders and employees of Diablo, all
         as  more  specifically  described  in  Section  2.1(f)  of  the  Diablo
         Disclosure Schedule;

                  (g) any of the real property specifically described in Section
         2.1(g)  of the  Diablo  Disclosure  Schedule  which is  covered  by any
         agreement  executed and delivered pursuant to the provisions of Section
         6.2(p); and

                  (h)  any  and all  products,  profits  and  proceeds  of,  and
         including  without  limitation  any Claims with  respect to, any of the
         foregoing.

         2.2      Assumption of Liabilities and Obligations.

         (a) At the Closing,  ATS shall assume and agree to pay,  discharge  and
perform the following obligations and liabilities of Diablo  (collectively,  the
"Diablo  Assumed  Obligations"):  (i) all of the  obligations and liabilities of
Diablo  under the Diablo  Assumable  Agreements,  and (ii) all  obligations  and
liabilities  of Diablo with respect to the ownership and operation of the Diablo
Assets and the conduct of the Diablo  Business,  on and after the Closing  Date;
provided,  however, that notwithstanding the foregoing, ATS shall not assume and
agree to pay, and shall not, except as provided in Section 2.2(c),  be obligated
with respect to, the Diablo Nonassumed Obligations.


                                       -2-


<PAGE>



         (b) Except as otherwise  specifically set forth in this Agreement or in
the Diablo Disclosure  Schedule to the contrary,  ATS shall not assume or become
obligated to perform any debt, liability or obligation of Diablo relating to any
of the following matters (collectively, the "Diablo Nonassumed Obligations"):

                  (i) the  ownership or  operation  of the Diablo  Assets or the
         conduct of the Diablo  Business  prior to the Closing  Date,  including
         without  limitation  Taxes,  unfunded  pension  costs,  any  Employment
         Arrangement of Diablo (including  without  limitation any obligation to
         any Diablo  Employee for  severance  benefits or, except as provided in
         Section 2.2(c),  vacation time or sick leave), and any of the following
         to the extent same arise from Events  occurring prior to or existing on
         the Closing Date:  products  liability,  Legal Actions or other Claims,
         and obligations and liabilities relating to Environmental Law;

                  (ii) any obligations or liabilities under the Diablo Assumable
         Agreements relating to the period prior to the Closing;

                  (iii)  any insurance policies of Diablo;

                  (iv) those  required to be disclosed in the Diablo  Disclosure
         Schedule  which are not so disclosed or which,  if  disclosed,  Section
         2.2(b)(iv)  of the  Diablo  Disclosure  Schedule  indicates  that  such
         obligation or liability will not be assumed;

                  (v) any liability or obligation  from or relating to breach of
         any warranty or any misrepresentation by Diablo under this Agreement or
         any Collateral Document;

                  (vi) any liability or obligation from or relating to breach or
         violation  of, or  failure to  perform,  any of  Diablo's  obligations,
         covenants,  agreements or  undertakings  set forth in this Agreement or
         any Collateral Document, including without limitation Article 5 of this
         Agreement;

                  (vii) any  obligation  or  liability  relating to any Excluded
         Asset;

                  (viii) any obligation or liability with respect to capitalized
         lease obligations or Indebtedness for Money Borrowed;

                  (ix) any Taxes, fees, expenses or other amounts required to be
         paid by Diablo  pursuant to the  provisions  of this  Agreement  or any
         Collateral Document;

                  (x) any  Contract  with any  Affiliate  of Diablo,  other than
         those set forth in Section 2(b)(x) of the Diablo  Disclosure  Schedule;
         and

                  (xi) any liability or obligation with respect to the U.S. Navy
         Claim in excess of fifty percent  (50%) of the  obligation of Diablo to
         the U.S. Navy, which obligation shall be determined by subtracting from
         the total  obligation of Diablo to the U.S.  Navy that portion  thereof
         allocated to Watson Communications Systems, Inc.

All  Diablo  Nonassumed  Obligations  shall  remain and be the  obligations  and
liabilities solely of Diablo.

         (c)  Anything in this  Section or  elsewhere  in this  Agreement to the
contrary  notwithstanding,  the term "Diablo  Nonassumed  Obligations" shall not
include,  and the term "Diablo Assumed  Obligations" shall include,  (i) the ATS
Assumed Vacation Liability and the ATS Accrued Sick Time Liability and (ii) any

                                       -3-


<PAGE>



liability  arising out of the  transfer or  assignment  to ATS of, or the use or
enjoyment of the benefits by ATS under, any Contract, Governmental Authorization
or Private  Authorization  the transfer or  assignment  of which  (according  to
Section  2.2(c) of the Diablo  Disclosure  Schedule or according to the terms of
such Government  Authorization or Private Authorization) requires or may require
the  consent  of  any  Authority  or  other  third  party   (collectively,   the
"Nonassignable  Contracts"),  if ATS  has,  on or  prior  to the  Closing  Date,
notified  Diablo in writing (an  "Acceptance  Notice")  that ATS consents to the
transfer or assignment  of such  Nonassignable  Contract  despite the failure or
inability of ATS and Diablo to obtain the approval or consent of an Authority or
other Person whose approval or consent is required pursuant to the terms of such
Nonassignable Contract, or receives the benefits of such Nonassignable Contract,
in either of which  events,  if the approval or consent of an Authority or other
Person applicable to transfer of such  Nonassignable  Contract is required to be
obtained  as a  condition  to  ATS'  obligations  at  Closing  pursuant  to  the
provisions  of Section  6.1(a),  6.2(d) or  6.2(m),  ATS shall be deemed to have
waived such condition with respect to such Nonassignable  Contract. With respect
to any Nonassignable  Contract for which the applicable consent of any Authority
or other Person is not obtained prior to the Termination  Date and for which ATS
does not timely  deliver an  Acceptance  Notice as  described  in the  preceding
sentence,  Diablo and ATS shall enter into an agreement reasonably acceptable to
each party which agreement shall to the maximum extent feasible provide ATS with
the rights,  benefits and obligations under such  Nonassignable  Contracts.  The
term "ATS  Assumed  Vacation  Liability"  shall  mean the  liability  for Diablo
employees with respect to accrued vacation (or payment in lieu thereof), whether
accrued before or after the Closing subject to the following  limitations and/or
qualifications:  (i) accrued  vacation for all Diablo Employees who are retained
by Diablo  after the Closing  will be the sole  responsibility  of Diablo;  (ii)
accrued  vacation  for any Diablo  Employee who elects to resign prior to close,
for reasons other than the sale to ATS, or whom Diablo chooses to terminate with
or  without  cause,  other  than by reason of the sale to ATS,  will be the sole
responsibility  of Diablo;  (iii)  accrued  vacation  for Diablo  Employees  who
terminate  at Closing and who are either not rehired by ATS or who choose not to
be  employed  by ATS  will  be the  sole  responsibility  of ATS;  (iv)  accrued
vacation,  to the time of close,  for employees who are terminated by Diablo but
rehired by ATS who  terminate  their  employment  with ATS but who ATS wishes to
remain  as an  employee,  will be the  responsibility  of  Diablo;  any  accrued
vacation after Closing for such employees will be the responsibility of ATS; and
(v) accrued vacation for any employee  terminated by Diablo,  rehired by ATS and
subsequently terminated by ATS, as well as accrued vacation for any employee who
is  terminated  by Diablo prior to close at the request of ATS, will be the sole
responsibility of ATS. The term "ATS Accrued Sick Time Liability" shall mean the
liability  with  respect to accrued  sick time (as  provided  in the  applicable
Diablo Benefit Arrangement or Plan),  accrued on or before the Closing of Diablo
Employees  who become  employees of ATS after the Closing.  Although ATS has not
had an opportunity to complete its  evaluation of the Diablo  employees,  except
for the employees being retained by Diablo,  it is the current  intention of ATS
to  hire  initially  all  of the  current  Diablo  employees  at  positions  and
compensation  generally  comparable  to  those  currently  in  effect,  subject,
however,  to the right of ATS,  upon  completion  of its  evaluation  and to its
determination of the overall needs of ATS,  particularly in light of its general
staffing patterns and of other pending or prospective acquisitions of comparable
businesses in the state of California,  not to offer such  employment to certain
of the Diablo employees or to alter the terms of such employment,  including the
positions  and  compensation.  In no event shall the  expression of ATS' current
intention  be deemed  to be a  covenant  or  agreement  of ATS to so employ  any
particular current Diablo employee and no rights to employment by any particular
current Diablo employee shall be created hereby.

         (d)  Notwithstanding  anything  contained  in  this  Agreement  to  the
contrary,  except  as set  forth in  Section  2.2(d)  of the  Diablo  Disclosure
Schedule,  all items of income and expense  (including  without  limitation with
respect to rent,  utility  charges,  Pro Ratable  Taxes and wages and  salaries)
arising from the  ownership or operation of the Diablo  Assets or the conduct of
the Diablo  Business  shall be prorated as of 12:01 a.m.,  Pacific  time, on the
Closing Date,  with Diablo  entitled to and responsible for any such items on or
prior to the Closing Date and ATS entitled to and responsible for any such items
relating to any subsequent

                                       -4-


<PAGE>



period.  For these  purposes,  Pro Ratable Taxes  attributable  to a period that
begins  before and ends after the Closing Date shall be treated on a "closing of
the books" basis as two partial periods,  one ending at the close of the Closing
Date and the other beginning on the day after the Closing Date,  except that Pro
Ratable  Taxes (such as  property  Taxes)  imposed on a periodic  basis shall be
allocated  on a daily  basis.  If either  party  shall  have  received  any such
revenues  or paid any such  expenses  or charges  which,  pursuant  to the terms
hereof,  the other party is entitled to or responsible for, it shall furnish the
other party with a detailed  statement of any such items as soon as  practicable
after  receipt or payment  thereof.  The parties shall use their best efforts to
agree upon such items and other  adjustments  prior to the Closing  Date and, in
any  event,  except as set forth in  Section  2.2(c)  of the  Diablo  Disclosure
Schedule,  within sixty (60) days  thereafter.  If the parties are unable within
such  period to agree  upon such  items and other  adjustments,  Diablo  and ATS
shall,  within the following ten (10) days, jointly designate a nationally known
independent public accounting firm to be retained to review such items and other
adjustments.  The fees and other expenses of retaining such  independent  public
accounting firm shall be borne equally by Diablo and ATS. Such firm shall report
its conclusions as to such items and other adjustments  pursuant to this Section
and such report shall be  conclusive  on all parties to this  Agreement  and not
subject to  dispute or review.  Upon such  agreement  or  determination  by such
independent  accounting firm,  Diablo or ATS, as the case may be, shall promptly
reimburse the other party for any income  received or expenses paid by the other
party and not  previously  reimbursed or any other  adjustment  required by this
Section.  Notwithstanding the foregoing or any other provision of this Agreement
to the contrary,  ATS shall be solely  responsible for the payment of, and shall
defend,  indemnify  and  hold  harmless  Diablo,  its  officers,  directors  and
shareholders  from,  any and all  supplemental  or  additional  real property or
personal  property taxes assessed on or in connection  with the Diablo Assets or
any part  thereof,  which  arise  from  the  transactions  contemplated  by this
Agreement,  with  respect to  California  or other sales  and/or use taxes,  and
documentary  or  governmental  transfer or stamp taxes arising from the purchase
and sale of the Diablo Assets and the Diablo Business contemplated hereby.

         Nothing contained in this Section 2.2(d) is intended or shall be deemed
to amend or modify the indemnification provisions of Article 8 nor to reallocate
responsibility for the matters set forth therein.

         2.3  Closing;  Purchase  Price.  The closing of the  Transactions  (the
"Closing")  shall take place at Cooper,  White & Cooper,  1333 North  California
Boulevard,  Suite 450, Walnut Creek, CA 94596, at 10:00 a.m.,  local time, on or
before  September 30, 1997, (the "Closing  Date").  At the Closing,  each of the
parties  shall  deliver  such  bills  of  sale,   assignments,   assumptions  of
liabilities,  opinions and other  instruments  and documents as are described in
this  Agreement or as may be otherwise  reasonably  requested by the parties and
their  respective  counsel.  The  purchase  price for the Diablo  Assets and the
Diablo Business (the "Purchase  Price") shall be an amount equal to $40,500,000,
plus an amount equal to the sum of the Interim  Adjustment and Prepaid  Expenses
and deposits  and minus an amount equal to the sum of (i) the Diablo  Nonassumed
Obligations,  if any,  which ATS  agrees to assume at the  request of Diablo and
(ii) Prepaid Revenues.  The term "Interim Adjustment" shall mean an amount equal
to the aggregate  amount actually  incurred by Diablo from and after November 1,
1996  and  prior  to  the  Closing  Date  with  respect  to  the  completion  of
construction projects and site development  projections (a) described in Section
2.3 of the Diablo  Disclosure  Schedule or (b)  acquired  after the date of this
Agreement in accordance with the provisions of this Agreement, including without
limitation  Section 5.6, and capital  improvements  to, but not personnel costs,
maintenance or other expenses items of,  existing  communication  sites,  in all
cases,  which ATS shall have  approved in writing  prior to their  incurrence or
commitment  by Diablo.  Section  2.3(a) of the Diablo  Disclosure  Schedule sets
forth a description of the items  constituting a part of the Interim  Adjustment
for the period  ended as of a date not more than five (5) days prior to the date
of this  Agreement.  The  Purchase  Price shall be payable by (a)  delivery  and
cancellation  of the  Interim  Financing  Note and the  Additional  Compensation
Certificates (as defined in the Note Agreement)  (valued for such purposes at an
amount equal to the unpaid principal amount of the Interim Financing Notes, plus
accrued and unpaid interest to the Closing Date), (b) ATS instructing the Escrow
Agent to deliver the Escrow Deposit (together with interest and other increments
thereto) to

                                       -5-


<PAGE>



Diablo, (c) crediting against the Purchase Price amounts paid by ATS pursuant to
the amendment  included as part of the Letter of Intent,  and, the balance,  (d)
wire transfer of immediately  available funds (i) to the Indemnity  Escrow Agent
(or as it may  designate)  pursuant to the  provisions of the  Indemnity  Escrow
Agreement  in the  amount of  $900,000  (together  with  interest  and  earnings
thereon,  the  "Indemnity  Escrow  Fund")  and (ii) to Diablo  or, to the extent
provided in Section 2.5, the "qualified intermediary" designated pursuant to the
provisions of Section 2.5, for the balance of the Purchase Price to such account
(or accounts) as Diablo shall designate in written instructions to ATS delivered
not later than two (2) business days prior to the Closing.

         Although the parties  believe  that the value of the tangible  personal
property   (other   than   goodwill,   Governmental   Authorizations,    Private
Authorizations  and  Contracts)   constituting  a  part  of  the  Diablo  Assets
approximate  their depreciated book value, ATS shall have the right, at its sole
discretion,  to engage BIA  Consulting,  Inc. to promptly after the execution of
this Agreement  conduct and use its reasonable best efforts to complete,  within
forty-five (45) days, an appraisal of the Diablo Assets which shall be the basis
for an allocation schedule (the "Tax Allocation Schedule") pursuant to which the
Purchase Price shall be allocated among the Diablo Assets.  Such appraisal shall
be conducted in a manner which does not interfere with or  inconvenience  in any
material  matter any of the  landlords  or tenants at any of Diablo's  sites and
shall not, in any event,  affect the Purchase Price. The cost of such appraisal,
if  undertaken,  shall be borne by ATS.  Each of Diablo and ATS shall report the
purchase  and sale of the Diablo  Assets and the Diablo  Business  and the other
Transactions in accordance with the Tax Allocation  Schedule for purposes of all
federal,  state and local Tax Returns and shall not take,  and shall cause their
respective Affiliates, representatives,  successors and assigns not to take, any
position on any federal, state or local Tax Return or report,  inconsistent with
such  reporting  position.  Each of Diablo and ATS shall promptly give the other
notice of any  disallowance  of or  challenge  to such  reporting  by any Taxing
Authority.  Notwithstanding the provisions of this Section,  the parties to this
Agreement  will  rely  solely  on their  own  advisors  in  determining  the tax
consequences of the  transactions  contemplated by this Agreement and each party
is not relying,  and will not rely, on any  representations or assurances of any
other  party  regarding  such  consequences  other  than  the   representations,
warranties,  covenants and  agreements set forth in writing in this Agreement or
furnished pursuant to the provisions hereof.

         2.4 Accounts Receivable.  At the closing,  Diablo shall appoint ATS its
agent for the purpose of  collecting  all  Accounts  Receivable  relating to the
Diablo Business.  Diablo shall deliver to ATS on or as soon as practicable after
the Closing Date a complete and detailed  statement showing the name, amount and
age of each Accounts  Receivable of the Diablo Business.  Subject to and limited
by the following,  revenues relating to the Accounts  Receivable relating to the
Diablo Business will be for the account of Diablo.  ATS shall use its reasonable
business  efforts to collect the Accounts  Receivable with respect to the Diablo
Business  for a period of one hundred  eighty  (180) days after the Closing Date
(the  "Collection  Period").  Any payment  received by ATS during the Collection
Period from any customer  with an account which is an Accounts  Receivable  with
respect to the Diablo  Business  shall  first be  applied  in  reduction  of the
Accounts  Receivable,  unless the  customer  contests in writing the validity of
such application.  During the Collection Period, ATS shall furnish Diablo with a
list of, and pay over to  Diablo,  the  amounts  collected  with  respect to the
Accounts  Receivable  with respect to the Diablo Business on a monthly basis and
forward to Diablo, promptly upon receipt or delivery, as the case may be, copies
of all correspondence relating to Accounts Receivable.  ATS shall provide Diablo
with a final  accounting on or before the fifteenth (15th) day following the end
of the  Collection  Period.  Upon the request of either  party at and after such
time,  the  parties  shall  meet to  mutually  and in  good  faith  analyze  any
uncollected  Accounts  Receivable to determine if the same, in their  reasonable
business  judgment,  are deemed to be  collectable  and if ATS desires to retain
such Accounts Receivable. As to each such Accounts Receivable, the parties shall
negotiate a good faith value of such Accounts Receivable, which ATS shall pay to
Diablo  if  ATS,  in its  sole  discretion,  chooses  to  retain  such  Accounts
Receivable.  Diablo  shall  retain  the  right to  collect  any of its  Accounts
Receivable as to which the parties are unable to

                                       -6-


<PAGE>



reach agreement as to a good faith value,  and ATS agrees to turn over to Diablo
any payments  received  against any such Accounts  Receivable.  ATS shall not be
obligated  to use any  extraordinary  efforts  to  collect  any of the  Accounts
Receivable  assigned  to it for  collection  hereunder  or to refer  any of such
Accounts  Receivable to a collection  agency or to any attorney for  collection,
and ATS shall not make any such referral or compromise, nor settle or adjust the
amount of any such Accounts Receivable,  except with the approval of Diablo. ATS
shall not incur any liability to Diablo for any  uncollected  account unless ATS
shall have engaged in willful  misconduct or gross negligence in the performance
of its  obligations  set forth in this Section.  During and after the Collection
Period, without specific agreement with ATS to the contrary,  neither Diablo nor
its agents shall make any direct  solicitation  of the Accounts  Receivable  for
collection purposes, except for Accounts Receivable retained by Diablo after the
Collection  Period.  The  provisions  of this  Section  shall not apply to those
certain  Accounts  Receivable set forth in Section 2.4 of the Diablo  Disclosure
Schedule or to any other Accounts  Receivable which Diablo, in its sole business
judgment,  determines will require extraordinary collection efforts or referrals
to a collection agency or attorney for collection  (collectively,  the "Retained
Accounts  Receivable"),  provided the Retained Accounts Receivable are set forth
in a written notice  delivered to ATS by Diablo on or prior to the Closing Date.
Diablo shall retain the sole and exclusive  right to collect,  whether during or
after the Collection Period, all Retained Accounts Receivable,  as Diablo in its
sole discretion may determine.

         2.5  Like-Kind  Exchanges.  Diablo  shall have the  right,  but not the
obligation, to effect the transfer and conveyance of the Diablo Assets, in whole
or in part,  as part of one or more  exchanges  under  Section 1031 of the Code,
including  the delay in  Closing  of  escrow  for those  Assets  subject  to the
exchange.  If Diablo so elects,  it shall provide  notice to ATS of its election
(the "Like-Kind  Notice"),  setting forth in reasonable  detail which portion or
portions of the Diablo  Assets are to be so treated.  In such event,  Diablo (i)
may at any time at or prior to Closing  assign its rights,  in whole or in part,
under  this  Agreement  with  respect  to such  Diablo  Assets  to a  "qualified
intermediary" as defined in Treas. Reg. ss.1.1031(k)-1(g)(4),  subject to all of
the rights and  obligations  hereunder of ATS, and (ii) shall  promptly  provide
written notice of such  assignment to ATS. No such  assignment  shall,  however,
relieve Diablo of its  obligations  under this  Agreement.  If Diablo shall have
given a Like-Kind  Notice,  ATS shall (i) promptly  provide  Diablo with written
acknowledgment  of such notice,  (ii) at the Closing,  convey the Purchase Price
for the Diablo Assets (or such portion of them as shall have been  designated in
writing by Diablo) to the "qualified  intermediary" rather than to Diablo (which
conveyance  shall,  to such extent,  discharge the  obligation of ATS to deliver
such  Purchase  Price (or portion  thereof),  and (iii) at the request of Diablo
extend the closing of escrow for all or a portion of those assets subject to the
Like-Kind Notice for a period not to exceed one year. Should the closing for any
Like-Kind Notice  properties be so extended,  Diablo and ATS shall enter into an
agreement  reasonably  acceptable to each party which  agreement  shall,  to the
maximum extent feasible,  provide ATS with the rights, benefits, and obligations
for any Like-Kind Notice property for which the closing is so extended.  Without
limiting the  generality of the  foregoing,  Diablo and ATS shall promptly after
receipt  by ATS of the  Like-Kind  Notice,  negotiate  in good faith in order to
determine the portion of the Purchase  Price  attributable  to the Diablo Assets
which are to be the  subject of  like-kind  exchange  and, in the event they are
unable to so agree on such amount,  it shall be  determined  by  arbitration  in
accordance  with the provisions of Section 9.15 and not materially  inconsistent
with the appraisal undertaken pursuant to Section 2.3. If such determination has
not been made on or prior to the Closing,  ATS shall  transfer to the "qualified
intermediary" the amount proposed by Diablo in the Like-Kind Notice,  subject to
an agreement by the "qualified  intermediary" to remit to Diablo the excess,  if
any, of the amount so transferred  over the amount as finally  determined by the
arbitrator.



                                       -7-


<PAGE>



                                    ARTICLE 3

                    REPRESENTATIONS AND WARRANTIES OF DIABLO

         Diablo hereby  represents,  warrants and covenants to, and agrees with,
ATS as follows:

         3.1  Organization  and  Business;   Power  and  Authority;   Effect  of
Transaction.

         (a) Diablo is a corporation  duly  organized,  validly  existing and in
good  standing  under  the laws of its  jurisdiction  of  organization,  has all
requisite  power and authority  (corporate and other) to own or hold under lease
its properties and to conduct its business as now conducted.

         (b) Diablo has all requisite  corporate  power and corporate  authority
and has in full force and effect all  Governmental  Authorizations  (which,  for
purposes of this Section  3.1(b),  relate only to the sale of the Diablo  Assets
and  Diablo  Business   generally  and  not  to   "site-specific"   Governmental
Authorizations   or  those  required  by  local   Applicable  Law)  and  Private
Authorizations,  except  for  those set forth in  Section  3.1(b) of the  Diablo
Disclosure  Schedule or those the failure of which to obtain do not and will not
have,  individually  or in the  aggregate,  any material  adverse effect on ATS,
necessary  to enable it to execute and deliver,  and to perform its  obligations
under,  this Agreement and each Collateral  Document  executed or required to be
executed by it pursuant hereto or thereto or to consummate the Transactions; and
the execution,  delivery and  performance of this Agreement and each  Collateral
Document  executed or  required to be executed by it pursuant  hereto or thereto
have been duly authorized by all requisite corporate or other action on the part
of Diablo.  This  Agreement  has been duly  executed and delivered by Diablo and
constitutes, and each Collateral Document executed or required to be executed by
it pursuant  hereto or thereto or to consummate the  Transactions  when executed
and delivered by Diablo will constitute, legal, valid and binding obligations of
Diablo,  enforceable in accordance with their respective  terms,  except as such
enforceability may be limited by bankruptcy,  moratorium, insolvency and similar
laws  affecting the rights and remedies of creditors and  obligations of debtors
generally and by general principles of equity.

         (c)  Except as set forth in  Section  3.1(c) of the  Diablo  Disclosure
Schedule,  and except for matters which would have no material adverse effect on
ATS,  neither the  execution  and  delivery by Diablo of this  Agreement  or any
Collateral Document executed or required to be executed by it pursuant hereto or
thereto, nor the consummation by Diablo of the Transactions, nor compliance with
the terms, conditions and provisions hereof or thereof by Diablo:

                  (i) will conflict with, or result in a breach or violation of,
         or constitute a default  under,  any Organic  Document of Diablo or any
         Applicable Law (which, for purposes of this Section 3.1(c)(i),  relates
         only to the sale of the Diablo Assets and the Diablo Business generally
         and not to  local  Applicable  Law)  on the  part  of  Diablo,  or will
         conflict  with,  or result in a breach or violation of, or constitute a
         default  under,  or  permit  the  acceleration  of  any  obligation  or
         liability in, or but for any requirement of giving of notice or passage
         of time or both  would  constitute  such a  conflict  with,  breach  or
         violation of, or default under, or permit any such acceleration in, any
         Contractual  Obligation of Diablo, other than those constituting Diablo
         Nonassumed Obligations; or

                  (ii) will  require  Diablo to make or obtain any  Governmental
         Authorization, Governmental Filing (which, for purposes of this Section
         3.1(c)(ii)),  relate  only to the sale of the Diablo  Assets and Diablo
         Business   generally   and   not   to   "site-specific"    Governmental
         Authorizations  or those required by local  Applicable  Law) or Private
         Authorization  including  without  limitation under the FCA, except for
         filings under the Hart-Scott-Rodino Act.


                                       -8-


<PAGE>



         (d)  Diablo  does not  have any  Subsidiaries  except  as set  forth in
Section 3.1(d) of the Diablo Disclosure Schedule.

         3.2 Financial and Other Information. Diablo has heretofore furnished to
ATS copies of the financial  statements of the Diablo Business listed in Section
3.2 of the Diablo Disclosure Schedule (the "Diablo Financial  Statements").  The
Diablo Financial Statements, including in each case the notes thereto, have been
prepared in accordance  with CAAP applied on a consistent  basis  throughout the
periods  covered  thereby,  except as otherwise noted therein or as set forth in
Section 3.2 of the Diablo Disclosure  Schedule,  are true, accurate and complete
in all material respects, do not contain any untrue statement of a material fact
or omit to state a  material  fact  required  by CAAP to be  stated  therein  or
necessary in order to make the statements contained therein not misleading,  and
fairly  present the financial  position and the results of  operations  and cash
flow of the Diablo Business,  on the bases therein stated,  as of the respective
dates thereof,  and for the respective  periods covered thereby subject,  in the
case of unaudited financial statements, to normal year-end audit adjustments and
accruals.

         3.3 Changes in Condition.  Since the date of the most recent  financial
statements constituting a part of the Diablo Financial Statements, except to the
extent specifically  described in Section 3.3 of the Diablo Disclosure Schedule,
there has been no material adverse change in Diablo.  There is no Event known to
Diablo  which  materially  adversely  affects,  or (so  far as  Diablo  can  now
reasonably foresee) is likely to materially adversely affect,  Diablo, except to
the  extent  specifically  described  in Section  3.3 of the  Diablo  Disclosure
Schedule.

         3.4  Materiality.  Other than those set forth in the Diablo  Disclosure
Schedule,  the representations and warranties set forth in this Article would in
the  aggregate be true and correct even without the  materiality  exceptions  or
qualifications  contained  therein.  Other  than  those set forth in the  Diablo
Disclosure Schedule,  in the aggregate all such exceptions and qualifications to
the  representations and warranties are not and could not reasonably be expected
to be materially adverse to Diablo.

         3.5      Title to Properties; Leases.

         (a) Section 3.5(a) of the Diablo  Disclosure  Schedule contains a true,
accurate and complete description of all real property owned or leased by Diablo
that is part of the  Diablo  Assets.  Without  limiting  the  generality  of the
foregoing,  Section  3.5  of the  Diablo  Disclosure  Schedule  will  include  a
description of the  approximately 74 acre parcel on Black Mountain that contains
the  communication  site (the "Black Mountain  Communication  Site");  the Black
Mountain  Communications  Site will be encumbered with a permanent  conservation
easement in favor of the Nature  Conservancy  that will prohibit  development of
that portion of the site that contains a certain  endangered  flower, so long as
such  easement  does not  interfere  with access to the parcel or the use of the
parcel for a  communication  site.  Except as set forth in Section 3.5(a) of the
Diablo  Disclosure  Schedule,  Diablo  has  good  indefeasible,  marketable  and
insurable  title to all real  property  (other than  leasehold  and managed real
property)  and good  indefeasible  and  merchantable  title to all other  assets
(other than real property), tangible and intangible,  constituting a part of the
Diablo  Assets,  in each case free and clear of all Liens,  except (i) Permitted
Liens, (ii) Liens set forth on Section 3.5(a) of the Diablo Disclosure  Schedule
and (iii) Approved Title Conditions.  Except for financing statements evidencing
Liens referred to in the preceding sentence (a true,  accurate and complete list
and description of which is set forth in Section 3.5(a) of the Diablo Disclosure
Schedule),  no financing  statements  under the Uniform  Commercial  Code and no
other  filing  which names Diablo as debtor or which covers or purports to cover
any of the  Diablo  Assets  is on file in any state or other  jurisdiction,  and
Diablo has not signed or agreed to sign any such  financing  statement or filing
or any  agreement  authorizing  any secured  party  thereunder  to file any such
financing  statement or filing.  Except as  disclosed  in Section  3.5(a) of the
Diablo Disclosure Schedule, to Diablo's knowledge,  all improvements on the real
property owned or leased by Diablo are in compliance

                                       -9-


<PAGE>



with applicable zoning,  wetlands and land use laws,  ordinances and regulations
and applicable title covenants, conditions, restrictions and reservations in all
respects necessary to conduct the operations as presently conducted,  except for
any instances of non-compliance  which do not and will not in the aggregate have
a material  adverse  effect on the owner or lessee,  as the case may be, of such
real property.  Except as disclosed in Section  3.5(a) of the Diablo  Disclosure
Statement, all such improvements,  to Diablo's knowledge, comply in all material
aspects  with all  Applicable  Laws,  Governmental  Authorizations  and  Private
Authorizations.  Except as disclosed in Section 3.5(a) of the Diablo  Disclosure
Statement,  to  Diablo's  knowledge,  all of  the  transmitting  towers,  ground
radials, guy anchors, transmitting buildings and related improvements located on
the real  property  owned or leased by Diablo are located  entirely on such real
property.  Diablo has no knowledge of any pending,  threatened  or  contemplated
action to take by eminent  domain or  otherwise  to condemn any part of any real
property owned or leased by Diablo. Except as set forth in Section 3.5(a) of the
Diablo  Disclosure  Schedule,  such real property  (other than land),  fixtures,
fixed assets and other material items of personal property, including equipment,
have, in Diablo's  reasonable  business  judgment,  been  maintained in a manner
consistent with generally accepted  standards of sound engineering  practice and
currently permit the Diablo Business to be operated in all material  respects in
accordance  with the terms and conditions of all Applicable  Laws,  Governmental
Authorizations and Private Authorizations.

         (b) Section 3.5(b) of the Diablo  Disclosure  Schedule contains a true,
accurate and complete  description  of all Leases under which any real  property
used in the Diablo Business is leased. Except as otherwise set forth in Schedule
3.5(b) of the Diablo Disclosure Schedule, each Lease or other occupancy or other
agreement under which Diablo holds real or personal property constituting a part
of the Diablo Assets has been duly authorized,  executed and delivered by Diablo
or its predecessors in interest, as the case may be, and, to Diablo's knowledge,
each of the other parties thereto,  and is a legal, valid and binding obligation
of Diablo,  and,  to  Diablo's  knowledge,  each of the other  parties  thereto,
enforceable in accordance with its terms,  except as such  enforceability may be
limited by  bankruptcy,  moratorium,  insolvency  and similar laws affecting the
rights and remedies of creditors  and  obligations  of debtors  generally and by
general  principles  of equity.  Diablo has a valid  leasehold  interest  in and
enjoys peaceful and undisturbed possession under all Leases pursuant to which it
holds any such real property or tangible personal  property.  All of such Leases
are valid and  subsisting  and in full force and effect;  neither Diablo nor, to
Diablo's  knowledge,  any other party  thereto,  is in  material  default in the
performance,  observance or fulfillment of any obligation, covenant or condition
contained in any such Lease. None of the fixed assets or equipment  comprising a
part of the Diablo  Assets is subject to contracts of sale,  and none is held by
Diablo as lessee or as  conditional  sales vendee under any Lease or conditional
sales contract and none is subject to any title retention  agreement,  except as
set forth in Section 3.5(b) of the Diablo Disclosure Schedule.

         (c) Section 3.5(c) of the Diablo  Disclosure  Schedule contains a true,
accurate  and complete  description  of all  material  items of Diablo  Personal
Property.  Diablo owns and has good and merchantable  title to all of the Diablo
Personal  Property  relating  to  the  Diablo  Business  (the  "Diablo  Personal
Property"),  in each  case,  free and clear of all Liens,  except (i)  Permitted
Liens and (ii)  Liens  set forth on  Section  3.5(c)  of the  Diablo  Disclosure
Schedule  (which Liens shall be released prior to Closing).  Except as set forth
in Section 3.5(c) of the Diablo Disclosure Schedule,  all of the Diablo Personal
Property is in a state of good repair and  maintenance  and is in good operating
condition,  normal  wear and tear  excepted,  has  been  maintained  in a manner
consistent with generally  accepted  standards of good engineering  practice and
currently  permits the Diablo  Business to be  operated in  accordance  with the
terms and conditions of all  Applicable  Laws.  Except for financing  statements
listed in  Section  3.5(c)  of the  Diablo  Disclosure  Schedule,  no  financing
statements  under the Uniform  Commercial  Code and no other  filing which names
Diablo as debtor or which  covers or purports to cover any of the Diablo  Assets
is on file in any state or other  jurisdiction,  and  Diablo  has not  signed or
agreed  to  sign  any  such  financing  statement  or  filing  or any  agreement
authorizing any secured party thereunder to file any such financing statement or
filing.


                                      -10-


<PAGE>



         3.6 Compliance with Private  Authorizations.  Section 3.6 of the Diablo
Disclosure   Schedule  sets  forth  a  true,  accurate  and  complete  list  and
description of each Private  Authorization which individually is material to the
Diablo Assets or the Diablo Business. To Diablo's knowledge, and as set forth in
Section 3.6 of the Diablo Disclosure  Schedule,  Diablo has obtained all Private
Authorizations  which are necessary for the ownership or operation of the Diablo
Assets  or the  conduct  of the  Diablo  Business  which,  if not  obtained  and
maintained, could, individually or in the aggregate, materially adversely affect
Diablo.  All of such Private  Authorizations  are valid and in good standing and
are in full force and  effect.  Diablo is not in breach or  violation  of, or in
default in the  performance,  observance  or  fulfillment  of, any such  Private
Authorization,  and no Event exists or has occurred,  which constitutes,  or but
for any  requirement  of  giving  of notice  or  passage  of time or both  would
constitute,  such a  breach,  violation  or  default,  under  any  such  Private
Authorization,  except for such  defaults,  breaches or violations as do not and
will not have in the aggregate any material  adverse  effect on Diablo.  No such
Private  Authorization is the subject of any pending or, to Diablo's  knowledge,
threatened attack, revocation or termination.

         3.7 Compliance with Governmental Authorizations and Applicable Law.

         (a) To  Diablo's  knowledge,  Section  3.7(a) of the Diablo  Disclosure
Schedule contains a true, complete and accurate description of each Governmental
Authorization  required under  Applicable Laws (i) to own and operate the Diablo
Business,  as currently conducted or proposed to be conducted on or prior to the
Closing  Date,  all of  which  are in full  force  and  effect  or (ii)  that is
necessary to permit Diablo to execute and deliver this  Agreement and to perform
its obligations hereunder. To Diablo's knowledge,  except as otherwise set forth
in Section  3.7(a) of the Diablo  Disclosure  Schedule,  Diablo has obtained all
Governmental  Authorizations  which are necessary for the ownership or operation
of the Diablo Assets or the conduct of the Diablo  Business as now conducted and
which, if not obtained and maintained,  would, individually or in the aggregate,
have  any  material   adverse  effect  on  Diablo.   None  of  the  Governmental
Authorizations  listed in Section  3.7(a) of the Diablo  Disclosure  Schedule is
subject to any  restriction  or  condition  which  would  limit in any  material
respect the  ownership or  operations of the Diablo Assets or the conduct of the
Diablo Business as currently  conducted,  except for restrictions and conditions
generally   applicable  to  Governmental   Authorizations   of  such  type.  The
Governmental  Authorizations  listed in Section 3.7(a) of the Diablo  Disclosure
Schedule  are valid and in good  standing,  are in full force and effect and are
not  impaired  in any  material  respect by any act or omission of Diablo or its
officers, directors,  employees or agents, and the ownership or operation of the
Diablo  Assets or the conduct of the Diablo  Business are in  accordance  in all
material respects with the Governmental  Authorizations.  To Diablo's knowledge,
all material reports,  forms and statements  required to be filed by Diablo with
all  Authorities  with  respect to the Diablo  Business  have been filed and are
true,  complete  and  accurate in all material  respects.  No such  Governmental
Authorization  is  the  subject  of  any  pending  or,  to  Diablo's  knowledge,
threatened  challenge or proceeding to revoke or terminate any such Governmental
Authorization.  Diablo  has no  reason  to  believe  that any such  Governmental
Authorization  would  not be  renewed  in the  name of  Diablo  by the  granting
Authority in the ordinary course.


         (b) Except as otherwise specifically described in Section 3.7(b) of the
Diablo Disclosure  Schedule,  neither Diablo nor any director or officer thereof
(in  connection  with ownership or operation of the Diablo Assets or the conduct
of the  Diablo  Business)  is in or is  charged  by any  Authority  with or,  to
Diablo's  knowledge,  at any time since  January 1, 1993 has been in or has been
charged by any Authority with, or, to Diablo's knowledge, is threatened or under
investigation  by any  Authority  with respect to,  breach or  violation  of, or
default in the  performance,  observance  or  fulfillment  of, any  Governmental
Authorization  or any  Applicable Law relating to the ownership and operation of
the Diablo  Assets or the conduct of the Diablo  Business.  In  particular,  but
without  limiting the  generality of the foregoing,  there are no  applications,
complaints or Legal Actions pending or, to Diablo's knowledge, threatened before
or by any  Authority  (x)  relating to the  ownership or operation of the Diablo
Assets or the conduct of the Diablo Business which,

                                      -11-


<PAGE>



individually  or in the  aggregate,  are  reasonably  likely  to  result  in the
revocation or termination of any Governmental Authorization or the imposition of
any  restriction  of such a nature as would  adversely  affect the  ownership or
operations  of  the  Diablo   Business;   (y)   involving   charges  of  illegal
discrimination  by Diablo  under any federal or state  employment  Laws,  or (z)
involving  Environmental  Laws or zoning laws, except as otherwise  specifically
described in Section 3.7(b) of the Diablo Disclosure Schedule.

         (c) Except as otherwise specifically described in Section 3.7(c) of the
Diablo Disclosure Schedule, no Event exists or has occurred,  which, to Diablo's
knowledge,  constitutes,  or but for any  requirement  of  giving  of  notice or
passage of time or both would constitute,  such a breach,  violation or default,
under (i) any Governmental  Authorization or any Applicable Law, except for such
breaches, violations or defaults as do not and will not have, individually or in
the  aggregate,  any  material  adverse  effect on  Diablo or (ii) any  material
requirement of any insurance carrier,  applicable to the ownership or operations
of the Diablo Assets or the conduct of the Diablo Business.

         (d) With respect to matters, if any, of a nature referred to in Section
3.7(a), 3.7(b) or 3.7(c) of the Diablo Disclosure Schedule,  except as otherwise
specifically  described in Section 3.7(d) of the Diablo Disclosure Schedule, all
such information and matters set forth in Sections  3.7(a),  3.7(b) or 3.7(c) of
the Diablo Disclosure  Schedule,  if adversely  determined against Diablo,  will
not,  individually or in the aggregate,  have a materially  adversely  effect on
Diablo.

         3.8 Intangible  Assets.  Section 3.8 of the Diablo Disclosure  Schedule
sets forth a true,  accurate and complete  description of all Intangible  Assets
(other than Governmental  Authorizations and Private Authorizations) relating to
the  ownership  and  operation of the Diablo Assets or the conduct of the Diablo
Business  held or used by Diablo,  including  without  limitation  the nature of
Diablo's  interest  in each and the  extent  to which  the same  have  been duly
registered in the offices as indicated  therein.  Except as set forth in Section
3.8 of the Diablo  Disclosure  Schedule,  to Diablo's  knowledge,  no Intangible
Assets (except  Governmental  Authorizations,  Private  Authorizations,  and the
Intangible  Assets so set forth) are required for the  ownership or operation of
the Diablo  Assets or the  conduct of the Diablo  Business as  currently  owned,
operated  and  conducted or proposed to be owned,  operated and  conducted on or
prior to the Closing Date.  To Diablo's  knowledge,  Diablo does not  wrongfully
infringe  upon or  unlawfully  use any  Intangible  Assets  owned or  claimed by
another,  and Diablo has not  received  any notice of any claim or  infringement
relating to any such Intangible Asset.

         3.9  Related  Transactions.  Diablo  is not a party or  subject  to any
Contractual  Obligation  relating to the  ownership  or  operation of the Diablo
Assets or the  conduct  of the  Diablo  Business  between  Diablo and any of its
officers, directors, shareholders, employees or, to the knowledge of Diablo, any
Affiliate  of  any  thereof,   including  without   limitation  any  Contractual
Obligation  providing  for the  furnishing  of services to or by,  providing for
rental of property,  real,  personal or mixed,  to or from, or providing for the
lending or borrowing of money to or from or otherwise  requiring  payments to or
from,  any  such  Person,  other  than (i)  Employment  Arrangements  listed  or
described in Section 3.15 of the Diablo  Disclosure  Schedule,  (ii) Contractual
Obligations  between  Diablo and any of its directors,  shareholders,  officers,
employees or  Affiliates  of Diablo or any of the  foregoing,  which  constitute
Excluded Assets or Diablo Nonassumed  Obligations,  or (iii) as specifically set
forth in Section 3.9 of the Diablo Disclosure Schedule.

         3.10 Insurance. Diablo maintains, with respect to the Diablo Assets and
the Diablo  Business,  policies  of fire and  extended  coverage  and  casualty,
liability  and other forms of  insurance  in such amounts and against such risks
and losses as are set forth in Section 3.10 of the Diablo Disclosure Schedule.

                                      -12-


<PAGE>




         3.11     Tax Matters.

         (a)  Except as set forth in Section  3.11(a)  of the Diablo  Disclosure
Schedule,  Diablo  has in  accordance  with all  Applicable  Laws  filed all Tax
Returns which are required to be filed,  except with respect to failures to file
which in the aggregate  would not have a material  adverse effect on Diablo and,
to Diablo's knowledge,  has paid, or made adequate provision for the payment of,
all Taxes which have or may become due and payable  pursuant to said Tax Returns
and all other governmental  charges and assessments  received to date other than
those Taxes being contested in good faith for which adequate  provision has been
made  on the  most  recent  balance  sheet  forming  part  of  Diablo  Financial
Statements. The Tax Returns of Diablo have, to Diablo's knowledge, been prepared
in all material  respects in accordance  with all Applicable  Laws and generally
accepted principles applicable to taxation consistently applied. All Taxes which
Diablo is required by law to withhold and collect have,  to Diablo's  knowledge,
been duly withheld and  collected,  and have been paid over, in a timely manner,
to the proper Authorities to the extent due and payable. Diablo has not executed
any waiver to extend, or otherwise taken or failed to take any action that would
have the effect of extending,  the applicable  statute of limitations in respect
of any Tax liabilities of Diablo for the fiscal years prior to and including the
most recent fiscal year.  Adequate  provision has, to Diablo's  knowledge,  been
made  on the  most  recent  balance  sheet  forming  part  of  Diablo  Financial
Statements  for all Taxes accrued  through the date of such balance sheet of any
kind,  including interest and penalties in respect thereof,  whether disputed or
not,  and  whether  past,  current or  deferred,  accrued or  unaccrued,  fixed,
contingent,  absolute or other,  and there are, to Diablo's  knowledge,  no past
transactions  or matters  which could result in  additional  Taxes of a material
nature to Diablo for which an  adequate  reserve  has not been  provided on such
balance sheet.  Diablo is not a "consenting  corporation"  within the meaning of
Section 341(f) of the Code. Diablo has at all times been taxable as a Subchapter
S corporation  under the Code,  and has never been a member of any  consolidated
group for Tax purposes,  except as otherwise set forth in Section 3.11(a) of the
Diablo Disclosure Schedule.

         (b) The  information  shown on the federal income Tax Returns of Diablo
for each of the most recent five tax years  (true and  complete  copies of which
have, to the extent  requested by ATS,  been  furnished by Diablo to ATS) is, to
Diablo's  knowledge,  true,  accurate and complete in all material  respects and
fairly and accurately  reflects the information  purported to be shown.  Federal
and state  income Tax  Returns of Diablo  have not been  examined  by the IRS or
applicable  state  Authority,  and Diablo has not been  notified of any proposed
examination,  except  as shown  in  Section  3.11(b)  of the  Diablo  Disclosure
Schedule.

         (c) Diablo is not a party to any tax sharing  agreement or arrangement,
other than those contained in certain of its leases.

         3.12     Employee Retirement Income Security Act of 1974.

         (a) Diablo  (which for purposes of this Section shall include any ERISA
Affiliate) is not making any  contribution to or sponsoring,  and has not at any
time since its organization  made any contribution to or sponsored,  any Plan or
Benefit  Arrangement,  except  as set forth in  Section  3.12(a)  of the  Diablo
Disclosure Schedule.  As to all Plans and Benefit Arrangements listed in Section
3.12(a) of the Diablo Disclosure Schedule:

                  (i) all such Plans and  Benefit  Arrangements  comply and have
         been  administered in form and in operation with all Applicable Laws in
         all material respects,  and Diablo has not received any notice from any
         Authority questioning or challenging such compliance;


                                      -13-


<PAGE>



                  (ii) all such Plans  maintained  or  previously  maintained by
         Diablo that are or were intended to comply with Sections 401 and 501 of
         the  Code  comply  and  complied  in form  and in  operation  with  all
         applicable  requirements  of such  sections,  and no event has occurred
         which  will or could  give  rise to  disqualification  of any such Plan
         under such sections or to a tax under Section 511 of the Code;

                  (iii)  none of the  assets  of any such Plan are  invested  in
         employer securities or employer real property;

                  (iv)  there  have  been  no  "prohibited   transactions"   (as
         described  in Section  406 of ERISA or  Section  4975 of the Code) with
         respect to any such Plan and Diablo  has not  otherwise  engaged in any
         prohibited transaction;

                  (v) there have been no acts or  omissions by Diablo which have
         given rise to or may give rise to any material fines, penalties,  taxes
         or related  charges under Sections  502(c),  502(i) or 4071 or ERISA or
         Chapter 43 of the Code for which Diablo may be liable;

                  (vi)  there are no  Claims  (other  than  routine  claims  for
         benefits  or  actions  seeking  qualified  domestic  relations  orders)
         pending or threatened involving such Plans or the assets of such Plans,
         and, to Diablo's knowledge, no facts exist which could give rise to any
         such Claims (other than routine claims for benefits or actions  seeking
         qualified domestic relations orders);

                  (vii) no such Plan is  subject  to Title IV of  ERISA,  or, if
         subject,  there have been no "report  able  events"  (as  described  in
         Section 4043 of ERISA),  and no steps have been taken to terminate  any
         such Plan;

                  (viii) all group health Plans of Diablo have been  operated in
         compliance  in  all  material  respects  with  the  group  health  plan
         continuation coverage requirements of COBRA;

                  (ix) actuarially  adequate  accruals for all obligations under
         the Plans are  reflected in the most recent  balance sheet forming part
         of the Diablo Financial  Statements and such obligations  include a pro
         rata amount of the  contributions  which would otherwise have been made
         in accordance  with past practices for the Plan years which include the
         Closing Date;

                  (x)  neither  Diablo  nor  any  of its  respective  directors,
         officers,  employees or any other fiduciary has committed any breach of
         fiduciary responsibility imposed by ERISA or any similar Applicable Law
         that would subject Diablo or any of its respective directors,  officers
         or  employees  to  material   liability  under  ERISA  or  any  similar
         Applicable Law;

                  (xi) no such Plan which is subject to Part 3 of  Subtitle B of
         Title I of ERISA or Section 412 of the Code had an accumulated  funding
         deficiency  (as  defined in Section 302 of ERISA and Section 412 of the
         Code),  whether or not  waived,  as of the last day of the most  recent
         fiscal  year of such Plan to which  Part 3 of  Subtitle B of Title I of
         ERISA  or  Section  412 of the  Code  applied,  nor  would  have had an
         accumulated funding deficiency on such date if such year were the first
         year of such Plan to which Part 3 of  Subtitle B of Title I of ERISA or
         Section 412 of the Code applied;

                  (xii)  no  material  liability  to the  PBGC  has  been  or is
         expected by Diablo to be  incurred by Diablo with  respect to any Plan,
         and there has been no event or condition which presents a material risk
         of termination of any Plan by the PBGC;


                                      -14-


<PAGE>



                  (xiii) except as set forth in Section 3.12(xiii) of the Diablo
         Disclosure  Schedule,  Diablo  is not and never has been a party to any
         Multiemployer Plan or made contributions to any such Plan;

                  (xiv)  except  as set  forth in  Section  3.12(a)(xiv)  of the
         Diablo Disclosure Schedule (which entry, if applicable,  shall indicate
         the present  value of  accumulated  plan  liabilities  calculated  in a
         manner  consistent  with FAS 106 and  actual  annual  expense  for such
         benefits  for each of the  last  two (2)  years)  and  pursuant  to the
         provisions  of COBRA,  Diablo does not maintain any Plan that  provides
         benefits  described in Section 3(1) of ERISA,  except as the provisions
         of COBRA may apply, to any former employees or retirees of Diablo; and

                  (xv) Diablo has made  available  to ATS a copy of the two most
         recently filed Federal Form 5500 series and  accountant's  opinion,  if
         applicable,  for each Plan (and the two most recent actuarial valuation
         reports for each Plan,  if any,  that is subject to Title IV of ERISA),
         and all  information  provided by Diablo to any  actuary in  connection
         with the preparation of any such actuarial  valuation  report was true,
         accurate and complete in all material respects.

         (b) The execution, delivery and performance by Diablo of this Agreement
and the Collateral Documents executed or required to be executed pursuant hereto
and thereto will not involve any  prohibited  transaction  within the meaning of
ERISA or Section 4975 of the Code.

         3.13 Absence of  Sensitive  Payments.  Neither  Diablo nor, to Diablo's
knowledge,  any  of  its  officers,   directors,   employees,  agents  or  other
representatives,  has with respect to the Diablo  Assets or the Diablo  Business
(a) made any  contributions,  payments or gifts to or for the private use of any
governmental official, employee or agent where either the payment or the purpose
of such  contribution,  payment or gift is illegal  under the laws of the United
States or the  jurisdiction  in which made or (b)  established or maintained any
unrecorded fund or asset for any purpose or made any false or artificial entries
on its books.

         3.14  Inapplicability of Specified  Statutes.  Diablo is not a "holding
company", or a "subsidiary company" or an "affiliate" of a "holding company", as
such terms are defined in the Public  Utility  Holding  Company Act of 1935,  as
amended,  or an "investment  company" or a company  "controlled" by or acting on
behalf of an "investment  company",  as defined in the Investment Company Act of
1940, as amended, or a "carrier" or a person which is in control of a "carrier",
as defined in section 11301 of Title 49, U.S.C.

         3.15  Employment  Arrangements.  Section 3.15 of the Diablo  Disclosure
Schedule  contains a true,  accurate and complete  list of all Diablo  employees
involved in the  ownership or  operation of the Diablo  Assets or the conduct of
the Diablo Business (the "Diablo Employees"), together with each such employee's
title or the capacity in which he or she is employed and the basis for each such
employee's  compensation.  Diablo has no obligation or liability,  contingent or
other,  under any Employment  Arrangement with any Diablo  Employee,  other than
those listed or described  in Section  3.15 of the Diablo  Disclosure  Schedule.
Except as described in Section 3.15 of the Diablo Disclosure Schedule,  (i) none
of the Diablo  Employees is now,  or, to Diablo's  knowledge,  since  January 1,
1993,  has been,  represented  by any labor union or other  employee  collective
bargaining  organization,  and Diablo is not, and has never been, a party to any
labor or other collective bargaining agreement with respect to any of the Diablo
Employees, (ii) there are no pending grievances,  disputes or controversies with
any union or any other employee or collective  bargaining  organization  of such
employees,  or threats of strikes,  work  stoppages  or slowdowns or any pending
demands for collective bargaining by any such union or other organization, (iii)
neither Diablo nor any of such employees is now, or, to Diablo's knowledge,  has
since January 1, 1993 been, subject to or involved in or, to Diablo's knowledge,
threatened   with,   any  union   elections,   petitions   therefore   or  other
organizational or recruiting activities, in each case with respect to the Diablo
Employees and (iv) none of the Diablo  Employees has notified  Diablo in writing
that he or she does not intend to continue employment with Diablo until the

                                      -15-


<PAGE>



Closing or with ATS following the Closing.  Diablo has performed in all material
respects  all  obligations   required  to  be  performed  under  all  Employment
Arrangements  and is not in  material  breach  or  violation  of or in  material
default or arrears under any of the terms, provisions or conditions thereof.

         3.16  Material  Agreements.  Listed  on  Section  3.16  of  the  Diablo
Disclosure  Schedule are all Material  Agreements  relating to the  ownership or
operation  of the Diablo  Assets or the  conduct of the  business  of the Diablo
Business  or to which  Diablo is a party or to which it is bound or which any of
the Diablo Assets is subject. True, accurate and complete copies of each of such
Material  Agreements have been provided by Diablo to ATS to the extent requested
by ATS (or true, accurate and complete  descriptions thereof have been set forth
in Section  3.16 of the Diablo  Disclosure  Schedule,  with  respect to Material
Agreements that are oral).  All of such Material  Agreements are valid,  binding
and legally enforceable  obligations of Diablo and, to Diablo's  knowledge,  all
other  parties  thereto,  except  as  such  enforceability  may  be  limited  by
bankruptcy,  moratorium,  insolvency  and similar laws  affecting the rights and
remedies  of  creditors  and  obligations  of debtors  generally  and by general
principles of equity.  Diablo has duly  complied with all of the material  terms
and conditions of each such Material Agreement and has not done or performed, or
failed to do or perform (and there is no pending or, to the knowledge of Diablo,
Claim threatened in writing that Diablo has not so complied,  done and performed
or failed to do and perform) any act which would  invalidate or provide  grounds
for the other party  thereto to terminate  (with or without  notice,  passage of
time or both) such  Material  Agreement  or impair the  rights or  benefits,  or
increase  the costs,  of Diablo  under any of such  Material  Agreements  in any
material respect.

         3.17  Ordinary  Course  of  Business.  From the end of its most  recent
fiscal  quarter to the date  hereof,  except (i) as may be  described on Section
3.17 of the Diablo Disclosure Schedule,  or (ii) as may be required or expressly
contemplated by the terms of this Agreement or the Letter of Intent,  Diablo has
operated the Diablo Business in all material  respects in the normal,  usual and
customary manner in the ordinary and regular course of business, consistent with
prior  practice,  and,  except in each case in the ordinary  course of business,
consistent with prior practice,

                  (a) has not  incurred  any  obligation  or  liability  (fixed,
         contingent or other) individually having a value in excess of $20,000;

                  (b) has not sold or  otherwise  disposed of or  contracted  to
         sell or otherwise  dispose of any of its  properties or assets having a
         value in excess of $20,000;

                  (c) has not entered into any  individual  commitment  having a
         value in excess of $20,000;

                  (d) has not canceled any debts or claims;

                  (e) has not created or permitted to be created any Lien on any
         of its property;

                  (f) has not made or  committed  to make any  additions  to its
         property or any purchases of equipment,  except in the ordinary  course
         of business consistent with past practice or for normal maintenance and
         replacements;

                  (g) has not  increased the  compensation  payable or to become
         payable  to any of the  Diablo  Employees  other  than in the  ordinary
         course of business or otherwise materially altered, modified or changed
         the terms of their employment;

                  (h) has not suffered any material damage,  destruction or loss
         (whether or not covered by insurance) or any  acquisition  or taking of
         property by any Authority;

                                      -16-


<PAGE>




                  (i) has not waived any rights of material  value  without fair
         and adequate consideration;

                  (j) has not experienced any work stoppage;

                  (k) has not entered  into,  amended or  terminated  any Lease,
         Governmental Authorization,  Private Authorization,  Material Agreement
         or Employment Arrangement, or any transaction, agreement or arrangement
         with any Affiliate of Diablo, except for Diablo Nonassumed Obligations;
         and

                  (l) has not entered  into any other  transaction  or series of
         related transactions which individually or in the aggregate is material
         to the Diablo Assets or the Diablo Business.

         3.18 Material and Adverse Restrictions.  To Diablo's knowledge,  Diablo
is not a party to or subject  to, nor are any of the Diablo  Assets  subject to,
any  Applicable  Law,  Governmental   Authorization,   Contractual   Obligation,
Employment  Arrangement,  Material  Agreement or Private  Authorization,  or any
other  obligation or restriction of any kind or character,  which now has or, as
far  as  Diablo  can  now  reasonably  foresee,  at  any  time  in  the  future,
individually or in the aggregate, is likely to have, any material adverse effect
on  Diablo,  except  as set  forth  in  Section  3.18 of the  Diablo  Disclosure
Schedule.

         3.19  Broker or Finder.  No Person  assisted  in or  brought  about the
negotiation  of this  Agreement or the  Transactions  in the capacity of broker,
agent or finder or in any similar capacity on behalf of Diablo.

         3.20  Solvency.  As of the  execution  and delivery of this  Agreement,
Diablo is, and immediately  prior to and after giving effect to the consummation
of the Transactions will be, solvent.

         3.21 Environmental Matters.  Except as set forth in Section 3.21 of the
Diablo Disclosure Schedule, with respect to the Diablo Assets, Diablo:

                  (a) has not been notified that it is potentially liable under,
         has not received any request for  information  or other  correspondence
         concerning its potential liability with respect to any site or facility
         under, and, to Diablo's  knowledge,  is not a "potentially  responsible
         party" under, the Comprehensive  Environmental  Response,  Compensation
         and  Liability  Act of 1980,  as  amended,  the  Resource  Conservation
         Recovery Act, as amended, or any similar state law;

                  (b) has not  entered  into or  received  any  consent  decree,
         compliance  order  or  administrative  order  issued  pursuant  to  any
         Environmental Law;

                  (c) is  not a  party  in  interest  or in  default  under  any
         judgment,  order, writ,  injunction or decree of any final order issued
         pursuant to any Environmental Law;

                  (d) is, to the  knowledge  of  Diablo,  in  compliance  in all
         material  respects  with  all  Environmental  Laws,  has,  to  Diablo's
         knowledge,   obtained  all   Environmental   Permits   required   under
         Environmental  Laws,  and  is  not  the  subject  of  or,  to  Diablo's
         knowledge,  threatened  with any Legal  Action  involving  a demand for
         damages or other potential liability including any Lien with respect to
         material violations or material breaches of any Environmental Law; and

                  (e) has no knowledge of any past or present  Event  related to
         the Diablo  Business or the Diablo Assets which Event,  individually or
         in the aggregate,  will interfere  with or prevent  continued  material
         compliance with all  Environmental  Laws, or which,  individually or in
         the aggregate, will

                                      -17-


<PAGE>



         form the basis of any  material  Claim for the  release  or  threatened
         release into the environment, of any Hazardous Material.


                                    ARTICLE 4

                      REPRESENTATIONS AND WARRANTIES OF ATS

         ATS represents,  warrants and covenants to, and agrees with,  Diablo as
follows:

         4.1  Organization  and  Business;   Power  and  Authority;   Effect  of
Transaction.

         (a) ATS is a corporation  duly organized,  validly existing and in good
standing  under  the  laws  of its  jurisdiction  of  incorporation  and has all
requisite  power and authority  (corporate and other) to own or hold under lease
its properties and to conduct its business as now conducted.

         (b) ATS has all  requisite  corporate  power  and  corporate  authority
necessary  to enable it to execute and deliver,  and to perform its  obligations
under,  this Agreement and each Collateral  Document  executed or required to be
executed by it pursuant hereto or thereto or to consummate the Transactions; and
the execution,  delivery and  performance of this Agreement and each  Collateral
Document  executed or  required to be executed by it pursuant  hereto or thereto
have been duly authorized by all requisite corporate or other action on the part
of  ATS.  This  Agreement  has  been  duly  executed  and  delivered  by ATS and
constitutes, and each Collateral Document executed or required to be executed by
it pursuant  hereto or thereto or to consummate the  Transactions  when executed
and delivered by ATS will constitute,  legal,  valid and binding  obligations of
ATS,  enforceable  in accordance  with their  respective  terms,  except as such
enforceability may be limited by bankruptcy,  moratorium, insolvency and similar
laws  affecting  the rights and remedies of  creditors  and the  obligations  of
debtors generally and by general principles of equity.

         (c) Except for matters which would not have any material adverse effect
on ATS,  neither the  execution  and  delivery by ATS of this  Agreement  or any
Collateral Document executed or required to be executed by it pursuant hereto or
thereto,  nor the consummation by ATS of the  Transactions,  nor compliance with
the terms, conditions and provisions hereof or thereof by ATS:

                  (i) will conflict with, or result in a breach or violation of,
         or  constitute  a default  under,  any  Organic  Document of ATS or any
         Applicable  Law on the part of ATS, or will conflict with, or result in
         a breach or violation of, or constitute a default under,  or permit the
         acceleration  of  any  obligation  or  liability  in,  or but  for  any
         requirement  of  giving  of notice  or  passage  of time or both  would
         constitute  such a conflict  with,  breach or violation  of, or default
         under, or permit any such  acceleration in, any Contractual  Obligation
         of ATS; or

                  (ii)  will  require  ATS to make or  obtain  any  Governmental
         Authorization,  Governmental Filing or Private Authorization  including
         without  limitation  under  the  FCA,  except  for  filings  under  the
         Hart-Scott-Rodino Act.

         4.2  Broker or  Finder.  No Person  assisted  in or  brought  about the
negotiation  of this  Agreement or the  Transactions  in the capacity of broker,
agent or finder or in any similar capacity on behalf of ATS.

         4.3 Solvency.  As of the execution and delivery of this Agreement,  ATS
is, and immediately  prior to and after giving effect to the consummation of the
Transactions will be, solvent.


                                      -18-


<PAGE>



         4.4 No Legal  Action.  There are no Legal  Actions  pending  or, to the
knowledge  of ATS,  threatened  against ATS or any of its  Affiliated  Entities,
officers  or  directors,  that  question  or may  affect  the  validity  of this
Agreement  or the  right  of ATS to  consummate  the  transactions  contemplated
hereunder.


                                    ARTICLE 5

                                    COVENANTS

         5.1      Access to Information; Confidentiality.

         (a) Diablo shall afford to ATS and its accountants,  counsel,  lenders,
financial advisors and other representatives (the "Representatives") full access
during normal business hours  throughout the period prior to the Closing Date to
all of Diablo's properties, books, contracts, commitments and records (including
without  limitation  Tax Returns)  relating to the Diablo  Assets and the Diablo
Business and, during such period, shall furnish promptly upon request (i) a list
(and copies to the extent  requested by ATS) of each report,  schedule and other
document  filed or  received  by  Diablo  pursuant  to the  requirements  of any
Applicable  Law or  filed  by it with  any  Authority  in  connection  with  the
Transactions or which may have a material adverse effect on the Diablo Assets or
the  Diablo  Business  or the  businesses,  operations,  properties,  prospects,
personnel,  condition  (financial or other),  or results of operations  thereof,
(ii) to the extent not  provided  for  pursuant  to the  preceding  clause,  all
financial  records,   ledgers,  work  papers  and  other  sources  of  financial
information  possessed and  controlled by Diablo or its  accountants  reasonably
deemed by ATS or its  Representatives  necessary  or useful  for the  purpose of
performing an audit of the Diablo Assets and the Diablo  Business and certifying
financial statements and financial information, and (iii) such other information
in the possession or control of Diablo or its accountants  concerning any of the
foregoing as ATS shall reasonably request; provided,  however, that Diablo shall
not be required to permit any such access to the extent same would  unreasonably
interfere with Diablo's normal business operations.  All non-public  information
relating  to the Diablo  Assets or the Diablo  Business  furnished  prior to the
execution, or pursuant to the provisions,  of this Agreement,  including without
limitation this Section,  will be kept  confidential  and shall not, without the
prior written consent of Diablo,  be disclosed by ATS in any manner  whatsoever,
in whole or in part,  and  shall  not be used for any  purposes,  other  than in
connection  with  the  Transactions.  In no  event  shall  ATS  or  any  of  its
Representatives  use such information to the detriment of Diablo.  ATS agrees to
reveal such  information only to those of its  Representatives  or other Persons
who  need  to  know  such   information   for  the  purpose  of  evaluating  the
Transactions,  who are informed of the  confidential  nature of such information
and who shall  undertake to act in accordance  with the terms and  conditions of
this Agreement.  From and after the Closing, Diablo shall not, without the prior
written  consent of ATS,  disclose any  information  remaining in its possession
with  respect  to  the  Diablo  Assets  or the  Diablo  Business,  and  no  such
information  shall be used for any purposes,  other than in connection  with the
Transactions or to the extent required by Applicable Law.

         (b) Subject to the terms and  conditions  of Section  5.1(a),  ATS may,
subject to prior  consultation with Diablo,  disclose such information as may be
necessary in connection with seeking all Governmental and Private Authorizations
or that is required by Applicable  Law to be  disclosed.  In the event that this
Agreement  is  terminated  for any  reason,  ATS shall  promptly  redeliver  all
non-public  written  material  provided  pursuant  to this  Section or any other
provision of this Agreement or otherwise in connection with the Transactions and
shall not retain any copies, extracts or other reproductions in whole or in part
of such written  material,  other than one copy thereof which shall be delivered
to independent  counsel for ATS (which  independent  counsel shall be subject to
the provisions of Section 5.1(a)), and ATS shall so certify to such effect.


                                      -19-


<PAGE>



         (c)  Anything in this  Section or  elsewhere  in this  Agreement to the
contrary  notwithstanding,  either  party may disclose  information  received or
retained by it in accordance  with the  provisions  of this  Agreement if it can
demonstrate  (i) such  information  is  generally  available  to or known by the
public from a source other than the party seeking to disclose  such  information
or (ii) was obtained by the party  seeking to disclose such  information  from a
source other than the other party,  provided that such source was not bound by a
duty of confidentiality to the other party or another party with respect to such
information.

         5.2      Agreement to Cooperate.

         (a) Each of the parties  hereto shall use reasonable  business  efforts
(x) to take,  or cause to be taken,  all actions and to do, or cause to be done,
all things necessary, proper or advisable under Applicable Law to consummate the
Transactions,  and (y) to refrain from taking,  or cause to be taken, any action
and to refrain from doing or causing to be done, any thing which could impede or
impair the consummation of the Transactions,  including,  in all cases,  without
limitation  using its reasonable  business  efforts (i) to prepare and file with
the applicable  Authorities  as promptly as  practicable  after the execution of
this Agreement all requisite applications and amendments thereto,  together with
related information,  data and exhibits, necessary to request issuance of orders
approving the  Transactions  by all such applicable  Authorities,  each of which
must be obtained or become final to the extent provided in Section 6.1(a),  (ii)
to  obtain  all  necessary  or  appropriate  waivers,  consents  and  approvals,
including  without  limitation  those  referred  to in Section  6.2(d),  without
payment of any material  amount of  compensation,  (iii) to effect all necessary
registrations,  filings and submissions  (including  without  limitation filings
under the  Hart-Scott-Rodino  Act and all filings  necessary  for ATS to own and
operate the Diablo  Assets and conduct  the Diablo  Business),  (iv) to lift any
injunction or other legal bar to the Transactions (and, in such case, to proceed
with the  Transactions  as  expeditiously  as  possible),  and (v) to obtain the
satisfaction  of the  conditions  specified  in  Article  6,  including  without
limitation the truth and correctness as of the Closing Date as if made on and as
of the Closing Date of the  representations and warranties of such party and the
performance  and  satisfaction  as of the  Closing  Date of all  agreements  and
conditions to be performed or satisfied by such party.

         (b) The parties shall  cooperate  with one another in the  preparation,
execution and filing of all Tax Returns, questionnaires,  applications, or other
documents  regarding any real property transfer or gains,  sales, use, transfer,
value  added,   stock  transfer  and  stamp  Taxes,  any  transfer,   recording,
registration  and other fees,  and any similar  Taxes  which  become  payable in
connection with the  Transactions  that are required or permitted to be filed on
or before the Closing Date.

         (c) Diablo  shall,  at ATS' expense,  cooperate and use its  reasonable
business  efforts to (i) prepare its financial  statements  for the period ended
December  31, 1996 and  thereafter  in  accordance  with GAAP and (ii) cause its
independent  accountants to reasonably  cooperate with ATS, and at ATS' expense,
in order to  enable  ATS to have its  independent  accountants  prepare  audited
financial  statements  for the Diablo  Business  described  in  Section  6.2(g).
Without  limiting the generality of the foregoing,  Diablo agrees that after the
Closing Date it will (x) if required by the  Securities Act or the Exchange Act,
consent to the use of such  audited  financial  statements  in any  registration
statement  or other  document  filed by ATS or any  Affiliate  of ATS  under the
Securities  Act or the  Exchange  Act and (y) if  reasonably  requested  by ATS'
independent accountants,  execute and deliver, and cause its officers to execute
and  deliver,  such  "representation"  letters as are  customarily  delivered in
connection with audits under comparable circumstances.

         5.3  Public  Announcements.  Until  the  Closing,  or in the  event  of
termination  of this  Agreement,  Diablo  and ATS shall  consult  with the other
before issuing any press release or otherwise making any public  statements with
respect to this Agreement or the Transactions and shall not issue any such press
release  or make any such  public  statement  without  the prior  consent of the
other.  Notwithstanding  the foregoing,  each party acknowledges and agrees that
Diablo and ATS may, without the other's prior consent, issue such press

                                      -20-


<PAGE>



releases or make such public statements as may be required by Applicable Law, in
which case, to the extent  practicable,  the party  proposing to make such press
release or public  statement  will consult with the other  regarding the nature,
extent and form of such press release or public statement. In addition,  subject
to the terms and conditions  hereof, ATS may disclose the subject matter of this
Agreement to Persons with whom Diablo has a business or contractual relationship
in  connection  with  ATS' due  diligence  investigation  of  Diablo;  provided,
however,  that prior to (i) ATS sending any  written  communication  to any such
Person,  ATS shall  secure the written  approval of the form and content of such
communication,  such  approval  not  to be  unreasonably  withheld,  delayed  or
conditioned,  and (ii)  any  verbal  or in  person  communication  with any such
Person, ATS shall provide Diablo with the opportunity to participate with ATS in
any such conversation or meeting.

         5.4 Notification of Certain Matters. Diablo and ATS shall, prior to the
Closing, give prompt notice to the other, of the occurrence or non-occurrence of
any Event the occurrence or non-occurrence of which would be likely to cause (i)
any  representation  or warranty  made by it contained  in this  Agreement to be
untrue  or  inaccurate  in any  material  respect  such  that one or more of the
conditions of Closing might not be satisfied, or (ii) any covenant, condition or
agreement  made by it contained  in this  Agreement  not to be complied  with or
satisfied,  or (iii) any change to be made in the Diablo Disclosure  Schedule in
any  respect  such that one or more of the  conditions  of Closing  might not be
satisfied,  and any failure made by it to comply with or satisfy,  or be able to
comply with or satisfy, any covenant, condition or agreement to be complied with
or  satisfied  by it  hereunder  in any  respect  such  that  one or more of the
conditions  of  Closing  might not be  satisfied;  provided,  however,  that the
delivery of any notice  pursuant to this  Section  shall not limit or  otherwise
affect the remedies available hereunder to the party receiving such notice.

         5.5 No  Solicitation.  So long as this  Agreement  remains  in  effect,
Diablo  shall not,  nor shall it  knowingly  permit  any of its  Representatives
(including,  without limitation, any investment banker, broker, finder, attorney
or accountant retained by it) to, initiate,  solicit or facilitate,  directly or
indirectly,  any  inquiries  or the making of any  proposal  with respect to any
Alternative  Transaction,  engage in any discussions or negotiations concerning,
or provide to any other Person any  information  or data  relating to, it or any
Subsidiary for the purposes of, or otherwise cooperate in any way with or assist
or  participate  in, or  facilitate  any inquiries or the making of any proposal
which constitutes,  or may reasonably be expected to lead to, a proposal to seek
or effect any  Alternative  Transaction,  or agree to or endorse any Alternative
Transaction.  "Alternative Transaction" means a transaction or series of related
transactions  (other  than the  Transactions)  resulting  in (i) any  merger  or
consolidation,  regardless of whether Diablo is the surviving  Entity unless the
surviving Entity remains obligated under this Agreement to the same extent as it
was, or (ii) any sale or other disposition of all or any substantial part of the
Diablo Assets or the Diablo Business. The provisions of this Section shall apply
to  each of  Diablo's  Subsidiaries.  If  Diablo  or any of its  Representatives
receives  any inquiry  with  respect to an  Alternative  Transaction  while this
Agreement is in effect,  Diablo shall inform the inquiring  party that it is not
entitled to enter into  discussions or  negotiations  relating to an Alternative
Transaction.

         5.6  Conduct of  Business  by Diablo  Pending  the  Closing.  Except as
otherwise contemplated by this Agreement, after the date hereof and prior to the
Closing  Date  or  earlier  termination  of this  Agreement,  unless  ATS  shall
otherwise  agree in writing,  Diablo shall, to the extent relating to the Diablo
Business or the Diablo Assets:

                  (a) conduct its  business in the  ordinary and usual course of
         business  and  consistent   with  past  practice,   including   without
         limitation the performance of such maintenance, repairs or replacements
         with respect to communication  towers,  fixtures and Personal  Property
         comprising the Diablo Assets as is consistent with past practice;


                                      -21-


<PAGE>



                  (b) use all reasonable business efforts to preserve intact its
         business organizations and goodwill, keep available the services of its
         present  key   employees,   and  preserve  the  goodwill  and  business
         relationships  with customers and others having business  relationships
         with it;

                  (c) to the extent permitted under  Applicable Law, confer,  as
         and when reasonably requested, on a regular and frequent basis with one
         or more  representatives of ATS to report material  operational matters
         and the general status of ongoing operations;

                  (d) maintain with financially  responsible insurance companies
         insurance  on its assets and its  business in such  amounts and against
         such risks and losses as are consistent with past practice;

                  (e) use reasonable  business efforts to (i) operate the Diablo
         Business in conformity in all material  respects with all  Governmental
         and Private  Authorizations,  Leases and Material Agreements on a basis
         consistent  with past  practice  and  Applicable  Law and the rules and
         regulations of any Authority with  jurisdiction  over the Diablo Assets
         or the Diablo Business,  and (ii) maintain in full force and effect all
         such  Governmental  and  Private  Authorizations,  Leases and  Material
         Agreements relating to the Diablo Business;

                  (f)  except  as set  forth in  Section  5.6(f)  of the  Diablo
         Disclosure Schedule,  not (i) dispose of any of the Diablo Assets owned
         by Diablo or used in the operation of the Diablo  Business  (other than
         for the  disposition  in the ordinary  course of business of immaterial
         assets  that are of no  further  use to the  Diablo  Business)  or (ii)
         modify or change in any material  respect,  or enter into, any Material
         Agreement relating to the Diablo Business; and

                  (g) not voluntarily take any action which if taken between the
         end of its most  recent  fiscal  quarter  and prior to the date of this
         Agreement  would  have been  required  to be noted as an  exception  on
         Section 3.17 of the Diablo Disclosure Schedule.

With respect to any  transaction or act proposed to be entered into or performed
by Diablo which,  pursuant to this Section 5.6,  requires the prior  approval of
ATS,  ATS shall be deemed to have  approved  the same unless  written  notice of
disapproval is received by Diablo within five (5) business days after receipt by
ATS of a written request for approval made by Diablo.

         5.7  Preliminary  Title Reports.  As promptly as practicable  after the
execution of this Agreement, Diablo shall, at its sole cost and expense, deliver
or cause to be delivered to ATS a standard  preliminary title report dated on or
after the date of this Agreement  issued by such title company as Diablo and ATS
shall  mutually  reasonably  agree (the "Title  Company")  with respect to those
Diablo Assets comprised of the parcels of real property described in Section 5.7
of the Diablo Disclosure  Schedule (the "Insured Real Property").  Such reports,
as same may be amended or supplemented  from time to time to reflect  additional
title  matters,  are referred to herein as the "Title  Reports".  The rights and
obligations of the parties shall thereafter be as follows:

                  (a) On or before fifteen (15) business days after ATS' receipt
         of the last of the  Title  Reports,  ATS shall  give to Diablo  written
         notice ("ATS' Title  Notice") of ATS'  disapproval of any matters shown
         in the Title  Reports.  ATS' failure to give ATS' Title  Notice  within
         such  fifteen (15)  business  days shall be deemed to  constitute  ATS'
         approval of all matters disclosed by the Title Reports;

                  (b) If ATS  disapproves  any title  matters  pursuant  to ATS'
         Title Notice,  Diablo shall deliver  written  notice  ("Diablo's  Title
         Notice") to ATS within ten (10) business days after Diablo's

                                      -22-


<PAGE>



         receipt  of  ATS'  Title  Notice,  stating  whether  Diablo  agrees  to
         eliminate such disapproved title matters from title to the Insured Real
         Property  prior to the Closing or, if such  elimination is not feasible
         prior to the  Closing,  to effect such  elimination  thereafter  and to
         indemnify and hold harmless ATS with respect to such remedy.  If Diablo
         fails to timely deliver  Diablo's Title Notice,  or if Diablo  delivers
         Diablo's  Title  Notice but states  therein that Diablo is unwilling or
         unable to eliminate  such  disapproved  title  matters,  ATS and Diablo
         shall  negotiate  in good faith in an attempt to resolve  such  matters
         (the "Disapproved Title Sites" and,  collectively with the "Disapproved
         Environmental  Sites", the "Disapproved Sites") from the Diablo Assets,
         a reduction of the Purchase  Price or an  indemnification  (and escrow)
         from  Diablo  (not  subject  to the  limitations  as to time or  amount
         specified  in Article 8). If within  twenty (20)  business  days of the
         commencement  of such  negotiations  (or such longer  period as ATS and
         Diablo  shall  agree),  the parties  have been  unable to resolve  such
         matters,  either party can  terminate  this  Agreement  pursuant to the
         provisions  of Section  7.1(f) within ten (10) business days of the end
         of such negotiation period; and

                  (c) If,  at any time  following  ATS'  approval  of the  Title
         Reports,  Diablo or the Title  Company  notifies ATS of any  additional
         matter affecting title to the Insured Real Property,  the parties shall
         have  substantially the same rights and obligations as are set forth in
         paragraphs (a) and (b) above.

         5.8 Environmental  Site  Assessments.  As promptly as practicable after
the execution of this Agreement, ATS may at its own cost and expense obtain, and
deliver to Diablo  full and  complete  copies  of,  Phase I  environmental  site
assessment reports (the "Environmental  Reports") on any or all of those certain
parcels  of real  property  described  on Section  5.8 of the Diablo  Disclosure
Schedule.   Site  assessments   shall  be  conducted  by  such  consultants  and
professionals  as  ATS  and  Diablo  shall  mutually  agree  (collectively,  the
"Environmental Company"),  shall be arranged at times mutually convenient to the
parties,  and shall be conducted in a manner  which does not  interfere  with or
inconvenience  in any material  manner any of the landlords or tenants at any of
Diablo's sites. Each of Diablo and ATS shall be entitled to have representatives
present at the time such site  assessments are conducted,  and to have copies of
all correspondence with the Environmental Company:

                  (a) On or before fifteen (15) business days after ATS' receipt
         of the last of the  Environmental  Reports,  ATS  shall  give to Diablo
         written notice ("ATS' Environmental Notice") of ATS' disapproval of any
         matters shown in the Environmental  Reports.  ATS' failure to give ATS'
         Environmental  Notice  within such fifteen (15)  business days shall be
         deemed to  constitute  ATS'  approval of all matters  disclosed  by the
         Environmental Reports;

                  (b) If ATS disapproves any  environmental  matters pursuant to
         ATS'  Environmental   Notice,   Diablo  shall  deliver  written  notice
         ("Diablo's  Environmental Notice") to ATS within ten (10) business days
         after Diablo's receipt of ATS'  Environmental  Notice,  stating whether
         Diablo  agrees to eliminate and remedy such matter prior to the Closing
         or, if such elimination or remedy is not feasible prior to the Closing,
         to effect such  elimination and remedy  thereafter and to indemnify and
         hold  harmless  ATS with  respect to such  remedy.  If Diablo  fails to
         timely deliver  Diablo's  Environmental  Notice,  or if Diablo delivers
         Diablo's  Environmental  Notice  but  states  therein  that  Diablo  is
         unwilling or unable to eliminate and remedy such environmental matters,
         ATS and Diablo  shall  negotiate in good faith in an attempt to resolve
         such matters (the  "Disapproved  Environmental  Sites") from the Diablo
         Assets,  a reduction of the Purchase Price or an  indemnification  (and
         escrow)  from  Diablo  (not  subject to the  limitations  as to time or
         amount  specified in Article 8). If within twenty (20) business days of
         the commencement of such negotiations (or such longer period as ATS and
         Diablo  shall  agree),  the parties  have been  unable to resolve  such
         matters, either party can

                                      -23-


<PAGE>



         terminate this  Agreement  pursuant to the provisions of Section 7.1(f)
         within ten (10)  business days of the end of such  negotiation  period;
         and

                  (c)  If,  at  any  time   following   ATS'   approval  of  the
         Environmental Reports, ATS or the Environmental Company notifies Diablo
         of  any  additional   environmental  matter,  the  parties  shall  have
         substantially  the same  rights  and  obligations  as are set  forth in
         paragraphs (a) and (b) above.

         5.9  Post-Closing  Covenants and  Agreements  of the Parties.  From and
after the consummation of the Transactions, ATS and Diablo covenant and agree as
follows:

                  (a) Diablo shall have the right,  if it shall have so notified
         ATS not later  than five (5)  business  days prior to the  Closing,  to
         retain (or to cause any of its  Affiliates  to retain) the  services of
         each  of  the  individuals  named  in  Section  5.9(a)  of  the  Diablo
         Disclosure Schedule;

                  (b) ATS shall  afford to Diablo,  and Diablo  shall  afford to
         ATS, access to their  respective  employees who were (or in the case of
         Diablo who remain)  employees  of Diablo on the Closing Date to the end
         that such employees are available to provide  assistance,  consultation
         and historical background to the requesting party;  provided,  however,
         that  neither ATS nor Diablo shall have any such  obligation  after the
         expiration  of five (5) years  from the  Closing  Date or to the extent
         that it would  exceed an  average  of four (4) hours per week over such
         period; and

                  (c) ATS shall  afford to Diablo,  and Diablo  shall  afford to
         ATS,  access to all books and records  delivered  to ATS or retained by
         Diablo,  as the case may be,  relating to periods  prior to the Closing
         Date,  in order to enable Diablo or ATS, as the case may be, to prepare
         all  necessary  Tax  Returns,  deal with Legal  Actions or other Claims
         (including without limitation those of the Internal Revenue Service) or
         personnel  matters  or for  any  other  reasonable  purposes,  subject,
         however,  in all events,  to the provisions of Section 5.1 with respect
         to   confidentiality.   Anything  in  this   Section  to  the  contrary
         notwithstanding,  Diablo and ATS shall  cooperate fully in the event of
         an Internal  Revenue  Service  audit or  investigation  related to this
         Agreement,  including without limitation providing each other with full
         and complete access to each other's records and employees to the extent
         necessary to respond to any such audit or investigation.


                                    ARTICLE 6

                               CLOSING CONDITIONS

         6.1 Conditions to Obligations of Each Party to effect the Transactions.
The  respective  obligations  of each  party to effect the  Transactions  shall,
except as hereinafter  provided in this Section,  be subject to the satisfaction
at or prior to the Closing Date of the following conditions, any or all of which
may be waived, in whole or in part, to the extent permitted by Applicable Law:

                  (a) All authorizations, consents, waivers, orders or approvals
         required  to  be  obtained  from  all  Authorities,  and  all  filings,
         submissions, registrations, notices or declarations required to be made
         by ATS and Diablo with any Authority,  prior to the consummation of the
         Transactions,  shall have been obtained  from,  and made with, all such
         Authorities, except for such authorizations, consents, waivers, orders,
         approvals, filings,  registrations,  notices or declarations as are set
         forth in  Section  6.1(a)  of the  Diablo  Disclosure  Schedule  or the
         failure  to  obtain  or make  would  not,  in the  reasonable  business
         judgment of ATS,  have a material  adverse  effect on the Diablo Assets
         and the Diablo Business;

                                      -24-


<PAGE>




                  (b) The transactions contemplated by the Other Agreement shall
         have been consummated prior to or simultaneously  with the consummation
         of the Transactions; and

                  (c) The parties shall have entered into an escrow agreement in
         form, scope and substance  reasonably  satisfactory to the parties with
         the Title  Company or any other  Person  reasonably  acceptable  to the
         parties,  pursuant  to  which,  among  other  things,  ATS  shall  have
         deposited the portion of the Purchase Price not being  delivered to the
         Indemnity Escrow Agent or to a "qualified intermediary" pursuant to the
         provisions  of Section 2.3, and Diablo  shall have  delivered  deeds in
         customary  form with respect to all of the real property to be conveyed
         to ATS as part of the  Diablo  Assets  and the  parties,  to the extent
         required by Section 9.3, shall have  deposited an amount  sufficient to
         pay all  recording  fees,  transfer  taxes and other fees and  expenses
         which must be paid as a condition of consummation  of the  transactions
         contemplated by this Agreement.

         6.2  Conditions to  Obligations of ATS. The obligation of ATS to effect
the  Transactions  shall  be  subject  to  the  satisfaction  of  the  following
conditions,  any or all of which  may be  waived,  in  whole or in part,  to the
extent permitted by Applicable Law:

                  (a) All agreements, certificates, opinions and other documents
         required to be delivered  pursuant to the  provisions of this Agreement
         shall be reasonably  satisfactory  in form,  scope and substance to ATS
         and its  counsel,  and ATS and its  counsel  shall  have  received  all
         information and copies of all documents, including records of corporate
         proceedings, which they may reasonably request in connection therewith,
         such documents  where  appropriate to be certified by proper  corporate
         officers;

                  (b) Diablo shall have furnished ATS and, at ATS' request,  any
         bank or other  financial  institution  providing  credit to ATS, with a
         favorable  opinion,  dated the Closing Date of Cooper,  White & Cooper,
         counsel for Diablo,  with  respect to the matters set forth in Sections
         3.1(a),  (b) and (c),  3.7(b) and 3.14, and such other matters  arising
         after the date of this Agreement and incident to the  Transactions,  as
         ATS or its counsel or its counsel may  reasonably  request or which may
         be reasonably  requested by any such bank or financial  institution  or
         their respective counsel;

                  (c) The  representations and warranties of Diablo contained in
         this  Agreement  or  otherwise  made in  writing by it or on its behalf
         pursuant  hereto shall be true and correct in all material  respects at
         and as of the  Closing  Date with the same  force and  effect as though
         made on and as of such date  except  those  which speak as of a certain
         date  which  shall  continue  to be true and  correct  in all  material
         respects  as of  such  date  on the  Closing  Date  (including  without
         limitation  giving effect to any later obtained  knowledge of Diablo or
         ATS, except as otherwise specifically provided herein); each and all of
         the  covenants  and  agreements  and  conditions  to  be  performed  or
         satisfied  by Diablo  hereunder  at or prior to the Closing  Date shall
         have been duly  performed or satisfied  in all material  respects;  and
         Diablo  shall  have  furnished  ATS with  such  certificates  and other
         documents  evidencing  the truth of such  representations,  warranties,
         covenants and  agreements  and the  performance  of such  agreements or
         conditions as ATS or its counsel shall have reasonably requested;

                  (d) Except to the extent,  if any,  specifically  set forth in
         Section 6.2(d) of the Diablo Disclosure  Schedule,  all authorizations,
         consents,  waivers,  orders or approvals  required by the provisions of
         this Agreement to be obtained from all Persons (other than Authorities)
         prior  to the  consummation  of  the  Transactions,  including  without
         limitation  those required by the provisions of this Agreement in order
         to vest fully in ATS all right, title and interest in and to all of the
         Diablo

                                      -25-


<PAGE>



         Assets  and the  Diablo  Business  (including  without  limitation  all
         Private Authorizations,  Leases and Material Agreements of Diablo), and
         the full  enjoyment  thereof  shall  have been  obtained,  without  the
         imposition,  individually  or in the  aggregate,  of any  condition  or
         requirement which could materially adversely affect ATS;

                  (e) Between the date of this  Agreement  and the Closing Date,
         there shall not have  occurred and be continuing  any material  adverse
         change  in  Diablo  from  that  reflected  in the  most  recent  Diablo
         Financial  Statements;   as  of  the  Closing  Date,  the  Governmental
         Authorizations with respect to the ownership or operation of the Diablo
         Assets  or the  conduct  of the  Diablo  Business  shall  not have been
         materially  and  adversely  affected  by any act, or failure to act, of
         Diablo;

                  (f) Diablo  shall have  delivered or caused to be delivered to
         ATS all of the Collateral Documents and other agreements, documents and
         instruments  required to be  delivered  by Diablo to ATS at or prior to
         the Closing pursuant to the terms of this Agreement;

                  (g) ATS shall have received from its  independent  accountants
         (i) an unqualified report (as to the scope of the audit,  access to the
         books and records and the  cooperation  of management) on the financial
         statements  (consisting  of balance sheets for each of the fiscal years
         ended  December 31, 1995 and 1996 and statements of operations and cash
         flow for each of the three years in the period ended December 31, 1996)
         of the Diablo  Business,  which  financial  statements  shall have been
         prepared  in  conformity   with  GAAP  and  Regulation  S-X  under  the
         Securities Act, or (ii) such other documentation as shall be reasonably
         satisfactory to ATS indicating that such an unqualified report could be
         issued if requested by ATS;

                  (h) As of the Closing  Date,  except as otherwise set forth in
         Section 3.7(a) of the Diablo Disclosure Schedule, no Legal Action shall
         be pending before or threatened in writing by any Authority  seeking to
         enjoin, restrain,  prohibit or make illegal or to impose any materially
         adverse   conditions  in  connection  with,  the  consummation  of  the
         Transactions,  or which might, in the reasonable  business  judgment of
         ATS, based upon the advice of counsel,  have a material  adverse effect
         on the Diablo Assets and the Diablo  Business,  it being understood and
         agreed that a written  request by any  Authority for  information  with
         respect  to the  Transactions,  which  information  could  be  used  in
         connection  with such Legal Action,  shall not be deemed to be a threat
         of any such Legal Action;

                  (i) All Environmental Reports obtained by the parties prior to
         the Closing Date pursuant to the provisions of Section 5.8 hereof shall
         be  approved  or deemed  approved  by ATS in the  manner  described  in
         Section 5.8;

                  (j) Richard D. Spight  ("Spight"),  the chairman and principal
         shareholder  of Diablo,  shall have  executed  and  delivered to ATS an
         agreement  substantially  in the form of Exhibit A attached  hereto and
         made a part hereof (the "Spight Noncompetition Agreement");

                  (k) Diablo and Spight shall have executed and delivered to ATS
         and the escrow agent named therein (the  "Indemnity  Escrow  Agent") an
         escrow agreement (the "Indemnity  Escrow  Agreement")  substantially in
         the form of Exhibit B attached hereto and made a part hereof;

                  (l) ATS shall have  received  standard  CLTA  title  insurance
         policies  insuring  ATS' fee  interests in all Insured  Real  Property,
         subject only to Approved Title Conditions;


                                      -26-


<PAGE>



                  (m)  Diablo  shall  have  delivered  to ATS all  use  permits,
         consents or other  Governmental  Authorizations  of and all Leases from
         the United  States  Forest  Service set forth in Section  6.2(m) of the
         Diablo Disclosure Schedule;

                  (n)  Diablo  shall  have  executed  and  delivered  to  ATS an
         agreement,  in form, scope and substance reasonably satisfactory to ATS
         (the "Nonassignable Contracts Agreement"), pursuant to which (i) Diablo
         will hold (but will have no obligation to perform services  thereunder)
         for the account of ATS, and remit promptly to ATS all amounts  received
         pursuant to the provisions of, all of the Nonassignable Contracts as to
         which the required approval or consent to the assignment or transfer of
         which was not obtained and as to which ATS has  delivered an Acceptance
         Notice, and (ii) ATS will agree to (A) perform all services required to
         be performed under such Nonassignable  Contracts,  (B) reimburse Diablo
         for  all  costs  and  expenses  reasonably  incurred  pursuant  to  the
         Nonassignable  Contracts  Agreement and (C) indemnify and hold harmless
         Diablo with respect to all actions  taken by ATS  pursuant  thereto and
         all actions,  if any, taken by Diablo pursuant thereto other than those
         relating to the bad faith,  negligence or willful  misconduct of Diablo
         or its officers, directors, stockholders or employees;

                  (o)  Diablo  and  Spight  shall  have  delivered  to  ATS,  an
         agreement,  in form, scope and substance reasonably satisfactory to ATS
         and Diablo, pursuant to which (i) Diablo and Spight would, for a period
         of three years, agree to offer only to ATS (and not to any other Person
         regardless  of whether  ATS shall  have  accepted  any such  offer) all
         property  in  California   which  is  suitable  for  development  as  a
         communication  site and with  respect to which they have,  as broker or
         otherwise,  any rights, and (ii) if ATS accepts such property, it would
         agree to pay Spight a percentage of net income on other compensation as
         set   forth  in  such   agreement   (the   "Acquisition   Participation
         Agreement");

                  (p) Diablo, Spight and any other Person having any interest in
         the property on Black  Mountain  which is contiguous to Black  Mountain
         Communications  Site  shall  have  executed  and  delivered  to  ATS an
         agreement, in recordable form, (i) granting permanent mutual access and
         permanent utility easements,  without the payment of any consideration,
         and (ii)  agreeing not to  construct  any  communication  towers on any
         portion of such property, all on terms and conditions as are reasonably
         satisfactory   to  ATS  and  Diablo  (the  "Black   Mountain   Easement
         Agreement");

                  (q) Spight (as the owner of the Drake  Industrial  Park) shall
         have  executed  and  delivered  to ATS a  lease,  in  form,  scope  and
         substance reasonably  satisfactory to ATS and Diablo, pursuant to which
         ATS shall lease approximately 2,400 square feet, for a term of five (5)
         years and at a rent of $1,200 per month (the "Drake Lease");

                  (r)  Spight  shall  have  executed  and  delivered  to  ATS an
         agreement,  in form, scope and substance reasonably satisfactory to ATS
         and Diablo,  pursuant to which (i) ATS shall have a right, for a period
         of three years,  of first refusal on any  communication  facility to be
         constructed on any building in California owned or managed by Spight or
         any Affiliate of Spight,  (ii) in the event ATS exercises such right of
         first refusal,  gross revenues (after  deduction for  installation  and
         electrical  expenses) from such  development  will be shared equally by
         ATS and Spight,  and (iii) in the event ATS does not exercise its right
         of first refusal,  Spight shall have the right to lease the facility to
         any  Person  who  is not  an  Affiliate  of  Spight  (the  "Exclusivity
         Agreement"); and

                  (s) In the event an agreement or agreements  have been entered
         into between Diablo (or ATS) and  TeleCommunications,  Inc. relating to
         the management of its towers,  Diablo shall have executed and delivered
         to  ATS  and  agreement,   in  form,  scope  and  substance  reasonably
         satisfactory

                                      -27-


<PAGE>



         to ATS,  pursuant to which Diablo shall receive the initial  $65,000 of
         revenue (in reimbursement of its expenses) and thereafter  revenue will
         be  shared  two-thirds  to  ATS  and  one-third  to  Diablo  (the  "TCI
         Agreement").

         6.3 Conditions to  Obligations  of Diablo.  The obligation of Diablo to
effect the  Transactions  shall be subject to the  satisfaction of the following
conditions,  any or all of which  may be  waived,  in  whole or in part,  to the
extent permitted by Applicable Law:

                  (a) All agreements, certificates, opinions and other documents
         required to be delivered  pursuant to the  provisions of this Agreement
         shall be reasonably satisfactory in form, scope and substance to Diablo
         and its  counsel,  and Diablo and its counsel  shall have  received all
         information and copies of all documents, including records of corporate
         proceedings, which they may reasonably request in connection therewith,
         such documents  where  appropriate to be certified by proper  corporate
         officers;

                  (b) ATS shall have furnished Diablo and, at Diablo's  request,
         any bank of other  financial  institution  providing  credit to Diablo,
         with favorable opinions, dated the Closing Date of Sullivan & Worcester
         LLP,  counsel for ATS, with respect to the matters set forth in Section
         4.1 and with respect to such other  matters  arising  after the date of
         this  Agreement  and  incident  to the  Transactions,  as Diablo or its
         counsel may reasonably request or which may be reasonably  requested by
         any such bank or financial institution or their respective counsel;

                  (c) The  representations  and  warranties  of ATS contained in
         this  Agreement  or  otherwise  made in  writing by it or on its behalf
         pursuant  hereto shall be true and correct in all material  respects at
         and as of the  Closing  Date with the same  force and  effect as though
         made on and as of such date  except  those  which speak as of a certain
         date  which  shall  continue  to be true and  correct  in all  material
         respects  as of  such  date  on the  Closing  Date  (including  without
         limitation  giving effect to any later obtained  knowledge of Diablo or
         ATS, except as otherwise specifically provided herein); each and all of
         the  covenants  and  agreements  and  conditions  to  be  performed  or
         satisfied  by ATS  hereunder at or prior to the Closing Date shall have
         been duly  performed or satisfied  in all  material  respects;  and ATS
         shall have furnished Diablo with such  certificates and other documents
         evidencing the truth of such representations, warranties, covenants and
         agreements  and the  performance  of such  agreements  or conditions as
         Diablo or its counsel shall have reasonably requested;

                  (d) ATS  shall  have  delivered  or cause to be  delivered  to
         Diablo all of the Collateral Documents and other agreements,  documents
         and  instruments  required to be delivered by ATS to Diablo at or prior
         to the Closing pursuant to the terms of this Agreement;

                  (e) As of the Closing  Date,  no Legal Action shall be pending
         before or  threatened  in writing by any  Authority  seeking to enjoin,
         restrain,  prohibit or make illegal or to impose any materially adverse
         conditions in connection with, the consummation of the Transactions, it
         being understood and agreed that a written request by any Authority for
         information with respect to the  Transactions,  which information could
         be used in connection with such Legal Action, shall not be deemed to be
         a threat of any such Legal Action;

                  (f) ATS shall have  executed and  delivered to Diablo,  Spight
         and the Indemnity  Escrow Agent a counterpart  of the Indemnity  Escrow
         Agreement;

                  (g) ATS shall  have  executed  and  delivered  to  Diablo  the
         Nonassignable Contracts Agreement;

                                      -28-


<PAGE>




                  (h) ATS shall have  executed and delivered to Diablo the Black
         Mountain Easement Agreement and the Exclusivity Agreement; and

                  (i) ATS shall,  if applicable,  have executed and delivered to
         Diablo the TCI Agreement.


                                    ARTICLE 7

                        TERMINATION, AMENDMENT AND WAIVER

         7.1 Termination.  This Agreement may be terminated at any time prior to
the Closing Date:

                  (a) by mutual consent of Diablo and ATS;

                  (b) by  either  ATS or  Diablo  if any  permanent  injunction,
         decree or judgment by any Authority  preventing the consummation of the
         Transactions shall have become final and nonappealable; or

                  (c) by  Diablo in the  event  (i)  Diablo  is not in  material
         breach of this Agreement and none of its  representations or warranties
         shall have become and  continue to be untrue in any  material  respect,
         and (ii) ATS is in  material  breach  of this  Agreement  or any of its
         representations  or  warranties  shall have  become and  continue to be
         untrue in any material respect, and such a breach or untruth exists and
         is not capable of being cured by and will prevent or delay consummation
         of the Transactions by or beyond the Termination Date; or

                  (d) by ATS in the event (i) ATS is not in  material  breach of
         this Agreement and none of its representations or warranties shall have
         become and  continue  to be untrue in any  material  respect,  and (ii)
         Diablo  is  in  material  breach  of  this  Agreement  or  any  of  its
         representations  or  warranties  shall have  become and  continue to be
         untrue in any material respect, and such a breach or untruth exists and
         is not capable of being cured by and will prevent or delay consummation
         of the Transactions by or beyond the Termination Date; or

                  (e) by ATS in the  event of a  failure  of the  condition  set
         forth in Section 6.2(i) or 6.2(l); or

                  (f) by ATS or Diablo  pursuant  to the  provisions  of Section
         5.7(b) or 5.8(b).

         The term "Termination Date" shall mean September 30, 1997 or such other
date as the parties may, from time to time, mutually agree.

         The right of ATS or Diablo to terminate this Agreement pursuant to this
Section shall remain  operative  and in full force and effect  regardless of any
investigation  made by or on behalf of either party, any Person  controlling any
such party or any of their respective  Representatives whether prior to or after
the execution of this Agreement.

         7.2      Effect of Termination.

         (a)   Except  as   provided   in   Sections   5.1  (with   respect   to
confidentiality),  5.3,  9.3 and  9.15  and this  Section,  in the  event of the
termination of this Agreement pursuant to Section 7.1, or in the event the

                                      -29-


<PAGE>



Transactions shall not have been consummated prior to the end of business on the
Termination  Date, this Agreement shall forthwith become void, there shall be no
liability on the part of either party, or any of their respective  shareholders,
officers or  directors,  to the other and all rights and  obligations  of either
party shall cease;  provided,  however,  that such termination shall not relieve
either party from  liability for any  misrepresentation  or breach of any of its
warranties, covenants or agreements set forth in this Agreement.

         (b) In the event this Agreement is terminated by Diablo pursuant to the
provisions  of Section  7.1(c),  then Diablo  shall be  entitled  to  liquidated
damages of (i) an amount equal to the Escrow Deposit, together with interest and
other  earnings  thereon,  and (ii)  delivery  and  cancellation  of the Interim
Financing  Notes,  including all accrued and unpaid  interest  thereon,  and any
Additional Compensation Certificates;  the parties agree that such amounts shall
collectively  constitute full payment for any and all damages suffered by Diablo
by reason of ATS' failure to consummate the  Transactions.  ATS and Diablo agree
in advance that actual  damages  would be  difficult to ascertain  and that such
liquidated  damages  is a fair and  equitable  amount to  reimburse  Diablo  for
damages  sustained due to ATS' failure to consummate  the  Transactions  for the
above-stated  reasons. In the event this Agreement is terminated by ATS pursuant
to the provisions of Section 7.1(d), then ATS shall be entitled to the amount of
the Escrow Deposit,  together with interest and other earnings thereon,  without
prejudice  to  ATS'  right  to  pursue  damages  or  other  remedies  hereunder.
Notwithstanding the foregoing,  each party shall have the right to seek specific
performance pursuant to the provisions of Section 9.5.

         (c)  In  the  event  this  Agreement  is  terminated  pursuant  to  the
provisions  of Section  7.1(a),  7.1(b),  7.1(e),  7.1(f) or  7.1(g),  except as
provided in Section 7.2(a), neither of the parties shall have any further rights
or remedies,  except that ATS shall be entitled to the Escrow Deposit,  together
with interest and earnings thereon.

         (d)  Anything in this  Article or  elsewhere  in this  Agreement to the
contrary notwithstanding,  in no event shall Diablo be required to refund to ATS
the nonrefundable  deposits made by ATS subsequent to March 31, 1997 pursuant to
the Amendment to Letter of Intent dated March 19, 1997.


                                    ARTICLE 8

                                 INDEMNIFICATION

         8.1 Survival. The representations, warranties, covenants and agreements
of the parties contained in or made pursuant to this Agreement or any Collateral
Document (except as otherwise provided in any Collateral Document) shall survive
the Closing and shall remain operative and in full force and effect for a period
of (a) two (2) years after the  Closing  Date or (b) in the case of matters of a
nature  referred to in Section  3.21,  three (3) years  after the Closing  Date,
regardless of any  investigation  or statement as to the results thereof made by
or on behalf of any party  hereto.  The term  "Indemnity  Period" shall mean the
applicable period with respect to which a representation,  warranty, covenant or
agreement  survives  the  Closing  as  provided  in this  Section.  No claim for
indemnification,  other than with  respect to fraud,  may be asserted  after the
expiration  of the Indemnity  Period.  ATS shall  promptly  advise Diablo in the
event it shall discover any fraud or alleged fraud, it being understood that, in
the event that ATS discovers such fraud or alleged fraud prior to the expiration
of the  Indemnity  Period and fails to so notify  Diablo  thereof,  it shall not
thereafter be entitled to assert any Claim with respect thereto. Notwithstanding
anything  herein to the contrary,  any  representation,  warranty,  covenant and
agreement  which  arises and is the  subject  of a Claim  which is  asserted  in
writing prior to the expiration of the applicable Indemnity Period shall survive
with respect to such Claim or any dispute with respect  thereto  until the final
resolution  thereof or the  expiration of the  applicable  statute of limitation
unless arbitration or litigation has been pursued.

                                      -30-


<PAGE>




         8.2      Indemnification.

         (a)  During  the  Indemnity  Period,   each  of  Diablo  and  ATS  (the
"indemnifying  party")  agrees that on and after the Closing it shall  indemnify
and hold harmless the other (the  "indemnified  party") from and against any and
all damages,  claims,  losses,  expenses,  costs,  obligations and  liabilities,
including  without  limitation   liabilities  for  all  reasonable   attorneys',
accountants' and experts' fees and expenses  including those incurred to enforce
the  terms  of  this  Agreement  or  any  Collateral  Document  executed  by  it
(collectively,  "Loss and Expense"),  suffered,  directly or indirectly,  by the
indemnified party by reason of, or arising out of:

                  (i) any  breach  of  representation  or  warranty  made by the
         indemnifying  party  pursuant  to  this  Agreement  or  any  Collateral
         Document  executed  by it or any failure by the  indemnifying  party to
         perform or fulfill any of its  respective  covenants or agreements  set
         forth in this Agreement or any Collateral Document executed by it; or

                  (ii) any  Legal  Action  or other  Claim  by any  third  party
         relating  to the  indemnifying  party  or,  in the  case  of  ATS,  the
         ownership  or  operations  of the Diablo  Assets or the  conduct of the
         business  of the Diablo  Business  to the extent  such Legal  Action or
         other Claim has also resulted in a breach of representation or warranty
         by the indemnifying  party pursuant to this Agreement or any Collateral
         Document executed by it; or

                  (iii) in the case of Diablo  as the  indemnifying  party,  the
         failure  of  Diablo  to  comply  with  Bulk  Sales  law of the State of
         California.

         (b) Diablo  agrees that on or after the Closing it shall  indemnify and
hold  harmless  ATS from and  against  any and all  Loss and  Expense  suffered,
directly  or  indirectly,  by ATS by reason  of, or  arising  out of, (i) Diablo
Nonassumed  Obligations or (ii) the ownership and operation of the Diablo Assets
and the Diablo Business prior to the Closing Date.

         (c) ATS agrees that on or after the Closing it shall indemnify and hold
harmless Diablo from and against any and all Loss and Expense suffered, directly
of indirectly, by Diablo by reason of, or arising out of, (i) (A) Diablo Assumed
Obligations  or (B) the  ownership  and  operation of the Diablo  Assets and the
Diablo Business from and after the Closing Date, except for Events arising prior
to or existing on the Closing Date,  unless they are part of the Diablo  Assumed
Obligations,  and  (ii) any  Hart-Scott-Rodino  Act or  other  federal  or state
antitrust  Law  filings  or any  Legal  Action or other  Claim of any  Authority
relating to the  Transactions  based upon any of the foregoing,  except,  in all
cases,  to the extent such filing,  Legal Action or other Claim relates to or is
based upon information furnished or omitted by Diablo.

         8.3      Limitation of Liability.

         (a)  Notwithstanding  the provisions of Section 8.2, after the Closing,
except as otherwise provided in Section 8.6, each indemnified  party's rights to
indemnification  shall  be  subject  to  the  following  limitations:   (i)  the
indemnified  party  shall be entitled to recover its Loss and Expense in respect
of any Claim  only in the event  that the  aggregate  Loss and  Expense  for all
Claims  (together  with Claims (as defined  therein)  under the Other  Agreement
("Other Agreement Claims")) exceeds, in the aggregate,  $100,000, in which event
the  indemnified  party  shall be  entitled to recover all such Loss and Expense
(including  without  limitation such  $100,000),  and (ii) in no event shall the
aggregate amount required to be paid by each indemnifying  party pursuant to the
provisions of this Article (and the comparable provision of the Other Agreement)
exceed  $1,000,000,  except for any Loss or Expense  arising out of matters of a
nature referred

                                      -31-


<PAGE>



to in Sections 3.1 and 4.1 (and the comparable provision of the Other Agreement)
as to which the  dollar  limitations  set forth in this  clause  (ii)  shall not
apply.

         (b)  Anything  in this  Agreement,  including  without  limitation  the
provisions of Sections 8.2 or 8.3(a), to the contrary notwithstanding, except as
provided in Sections 8.3(d) and 8.6, (i) the exclusive recourse of ATS after the
Closing with respect to the  liability of Diablo  pursuant to Section 8.2 or any
other  provision of this Agreement or Applicable  Law which  requires  Diablo to
defend,  indemnify  or hold  harmless  ATS from or against  any  Claim,  Loss or
Expense shall be the Escrow Indemnity Funds; and (ii) ATS' remedies for any such
liability of Diablo,  or for any Claim  arising under this  Agreement,  shall be
limited to its right to recover from the Escrow  Indemnity  Funds in  accordance
with the provisions of the Escrow Indemnity  Agreement,  and neither ATS nor any
of its officers,  directors,  shareholders,  agents or Affiliated Entities shall
have any right of recovery  against  Diablo or any of its  officers,  directors,
shareholders, agents or Affiliated Entities or against the assets of any of them
for any such liability.

         (c) In the event  there  shall be no  Claims  pending  pursuant  to the
provisions  of this  Agreement (or Other  Agreement  Claims) with respect to the
Escrow Indemnity Funds, if any, existing at the expiration of one (1) year after
the Closing,  the excess of (x) the Escrow  Indemnity  Funds then remaining over
(y)  $500,000  shall be  distributed  to  Diablo.  In the event one or more such
Claims  (and/or  Other  Agreement  Claims) with respect to the Escrow  Indemnity
Funds,  if any,  shall  exist  upon the  expiration  of one (1) year  after  the
Closing, funds in an amount equal to the sum of (i) $500,000, (ii) the aggregate
amount of such Claims  (and/or  Other  Agreement  Claims),  and (iii) the amount
reasonably  necessary  to cover the fees,  expense  and other  costs  (including
reasonable  counsel  fees and  expenses)  which will be required to resolve such
Claims (and/or Other Agreement Claims) shall be shall be retained as part of the
Escrow Indemnity Funds and the balance thereof,  if any, shall be distributed to
Diablo.  Upon the resolution of all such Claims (and/or Other Agreement  Claims)
existing  upon the  expiration of one (1) year after the Closing and the payment
of all such fees,  expenses  and costs out of the Escrow  Indemnity  Funds,  the
excess,  if any,  of (x) the  Escrow  Indemnity  Funds then  remaining  over (y)
$500,000 shall be distributed to Diablo.

         (d) In the event there shall be no Claims (or Other  Agreement  Claims)
pending  pursuant to the provisions of this Agreement with respect to the Escrow
Indemnity  Funds, if any,  existing at the expiration of two (2) years after the
Closing,  the Escrow  Indemnity  Funds then  remaining  shall be  distributed to
Diablo and DCSC (in such  proportion  as they shall  agree in  writing).  In the
event one or more such Claims  (and/or Other  Agreement  Claims) with respect to
the Escrow  Indemnity  Funds,  if any,  shall exist upon the  expiration  of the
Indemnity  Period,  funds in an  amount  equal  to the sum of (i) the  aggregate
amount of such  Claims  (and/or  Other  Agreement  Claims)  and (ii) the  amount
reasonably  necessary  to cover the fees,  expense  and other  costs  (including
reasonable  counsel  fees and  expenses)  which will be required to resolve such
Claims (and/or Other  Agreement  Claims) shall be retained as part of the Escrow
Indemnity Funds and the balance thereof,  if any, shall be distributed to Diablo
and  DCSC  (in  such  proportion  as they  shall  agree  in  writing).  Upon the
resolution of all such Claims (and/or Other Agreement Claims) and the payment of
all such  fees,  expenses  and  costs out of the  Escrow  Indemnity  Funds,  the
remainder of the Escrow  Indemnity Funds, if any, shall be distributed to Diablo
and DCSC (in such proportion as they shall agree in writing).

         (e) If, following the distribution to Diablo,  DCSC or any other Person
of any remaining Escrow Indemnity Funds, ATS becomes entitled to indemnification
for Loss and Expense  suffered by ATS arising from breach of the  warranties and
misrepresentations  set  forth in  Section  3.21,  or  breach  by  Diablo of any
covenants or agreement by Diablo under this Agreement or any Collateral Document
to which it is a party,  then ATS may pursue such Claim directly against Diablo,
its  successors  and assigns and Spight (but only to the extent he received  any
such  funds);  provided,  however,  that the maximum  amount of liability in the
aggregate of Diablo (and such successors and assigns and Spight) for any and all
such Claims shall be the amount of Escrow  Indemnity Funds that were distributed
to Diablo, DCSC or any other Person (other than

                                      -32-


<PAGE>



a claimant  whose Claim was paid out of the Indemnity  Escrow Fund) claiming by,
through or in the name of Diablo (including  without limitation Spight (but only
to the  extent he  received  any such  funds)  or  Diablo's  or his  successors,
assigns, trustees, beneficiaries, heirs or executors) upon the expiration of the
Indemnity Period or thereafter.

         (f) In the case any event shall occur  which  would  otherwise  entitle
either  party  to  assert a claim  for  indemnification  hereunder,  no Loss and
Expense  shall be deemed to have been  sustained  by such party to the extent of
any proceeds  received by such party from any  insurance  policies  with respect
thereto.  No  indemnifying  party shall be liable  under this Article for a loss
resulting from any event relating to a misrepresentation  or breach of warranty,
covenant  or  agreement  if  the  indemnifying  party  can  establish  that  the
indemnified  party had actual  knowledge  on or before the Closing  Date of such
event and did not,  on or before the  Closing  Date,  reserve  its  rights  with
respect thereto.

         8.4 Notice of Claims.  If an  indemnified  party  believes  that it has
suffered or incurred  any Loss and  Expense,  it shall  notify the  indemnifying
party promptly in writing,  and in any event within the  applicable  time period
specified in Section 8.1, describing such Loss and Expense,  all with reasonable
particularity  and containing a reference to the provisions of this Agreement in
respect of which such Loss and Expense shall have occurred.  If any Legal Action
is  instituted  by a third  party  with  respect to which an  indemnified  party
intends  to claim any  liability  or  expense  as Loss and  Expense  under  this
Article,  such indemnified party shall promptly notify the indemnifying party of
such Legal Action, but the failure to so notify the indemnifying party shall not
relieve such indemnifying party of its obligations under this Article, except to
the extent such failure to notify prejudices such  indemnifying  party's ability
to defend against such Claim.

         8.5 Defense of Third Party Claims.  The  indemnifying  party shall have
the right to  conduct  and  control,  through  counsel  of their  own  choosing,
reasonably  acceptable to the indemnified party, any third party Legal Action or
other Claim, but the indemnified party may, at its election,  participate in the
defense  thereof at its sole cost and expense;  provided,  however,  that if the
indemnifying  party shall fail to defend any such Legal  Action or other  Claim,
then the indemnified party may defend, through counsel of its own choosing, such
Legal Action or other Claim, and (so long as it gives the indemnifying  party at
least fifteen (15) days' written notice of the terms of the proposed  settlement
thereof  and  permits  the  indemnifying  party to then  undertake  the  defense
thereof)  settle  such Legal  Action or other Claim and to recover the amount of
such settlement or of any judgment and the reasonable costs and expenses of such
defense.  The  indemnifying  party shall not compromise or settle any such Legal
Action or other  Claim  without  the prior  written  consent of the  indemnified
party;  provided,  however,  that if the  indemnified  party fails or refuses to
consent in writing to any compromise of settlement  proposed by the indemnifying
party and  agreed to in writing by the  claimant  in such Legal  Action or other
Claim (the "Settlement Proposal") within ten (10) business days after receipt of
written  notice of all of the material  terms and  conditions of the  Settlement
Proposal,  and such  terms and  conditions  (a)  include a full  release  of the
indemnified  party from the Legal  Action or other Claim which is the subject of
the Settlement Proposal, and (b) if the indemnified party is ATS, do not include
any term or condition  which would restrict in any material manner the continued
ownership  or  operations  of the  Diablo  Assets or the  conduct  of the Diablo
Business in substantially the manner then being theretofore owned,  operated and
conducted by ATS, then,  unless the indemnifying  party forthwith  withdraws the
Settlement Proposal,  the indemnified party (i) shall have the right but not the
obligation to undertake the conduct of the defense of such Legal Action or other
Claim,  and (ii) whether or not it shall so undertake  the defense of such Legal
Action or other Claim, shall bear, and shall indemnify and hold the indemnifying
party  harmless  from,  all Loss and Expense  arising  from such Legal Action or
other Claim (to the extent not theretofore (x) accrued with respect to the costs
and expenses of the defense of such Legal Action or other Claim or (y) paid with
respect to such Legal Action or other  Claim) in excess of the amount  contained
in the  Settlement  Proposal,  it  being  understood,  in such  event,  that the
indemnifying  party  shall  bear all Loss and  Expense,  including  subsequently
incurred Loss and Expense  (including  without  limitation those attributable to
legal fees and

                                      -33-


<PAGE>



expenses) up to the amount  contained in the  Settlement  Proposal,  even if the
ultimate  disposition of such Legal Action or other Claim results in payments to
the claimant of less than those contained in the Settlement Proposal.

         8.6  Exclusive  Remedy.   Except  for  fraud,  willful  or  intentional
misrepresentation  or willful or  intentional  breach of  warranty,  covenant or
agreement or as otherwise provided in Section 9.5, the indemnification  provided
in this Article shall be the sole and exclusive post-Closing remedy available to
either party against the other party for any Claim under this Agreement.


                                    ARTICLE 9

                               GENERAL PROVISIONS


         9.1  Amendment.  This Agreement may be amended from time to time by the
parties  hereto at any time but only by an instrument  in writing  signed by the
parties hereto.

         9.2 Waiver.  Except to the extent not permitted by Applicable  Law, ATS
or Diablo may, at any time,  extend the time for the  performance  of any of the
obligations or other acts of the other, subject, however, to the provisions with
respect to the Termination  Date, waive any inaccuracies in the  representations
and  warranties  of the  other  contained  herein or in any  document  delivered
pursuant  hereto,  and waive compliance by the other with any of the agreements,
covenants or conditions  contained herein. Any such extension or waiver shall be
valid  only if set  forth in an  instrument  in  writing  signed by the party or
parties to be bound thereby.

         9.3 Fees, Expenses and Other Payments. All costs and expenses, incurred
in connection with any transfer taxes, recording or documentary taxes, stamps or
other  comparable  charges  levied  by any  Authority  in  connection  with this
Agreement and the consummation of the Transactions, title insurance for Diablo's
fee-owned  Real  Property  shall  be  borne  equally  by  Diablo  and  ATS.  All
Hart-Scott-Rodino  filing fees for both this  Agreement and the Other  Agreement
shall be borne equally by Diablo and ATS up to the amount of $20,000 for each of
Diablo  and ATS,  with the  balance  to be borne by ATS.  All  other  costs  and
expenses  incurred in connection with this Agreement and the consummation of the
Transactions,  including  without  limitation fees and disbursements of counsel,
financial  advisors and  accountants  incurred by the parties  hereto,  shall be
borne  solely  and  entirely  by the party  which has  incurred  such  costs and
expenses.

         9.4  Notices.  All  notices  and  other  communications  which  by  any
provision of this Agreement are required or permitted to be given shall be given
in  writing  and shall be (a)  mailed by  first-class  or  express  mail,  or by
recognized  courier  service,  postage  prepaid,  (b) sent by  telex,  telegram,
telecopy  or other form of rapid  transmission,  confirmed  by mailing (by first
class or express  mail,  or by  recognized  courier  service,  postage  prepaid)
written  confirmation at substantially the same time as such rapid transmission,
or (c)  personally  delivered  to the  receiving  party  (which if other than an
individual  shall be an  officer  or other  responsible  party of the  receiving
party). All such notices and communications  shall be mailed,  sent or delivered
as follows:


                                      -34-


<PAGE>



         (a)      If to ATS:

                  116 Huntington Avenue
                  Boston, Massachusetts 02116
                  Attention:   Joseph L. Winn, Chief Financial Officer
                  Telecopier No.:  (617) 375-7575

                  with a copy to:

                  Sullivan & Worcester LLP
                  One Post Office Square
                  Boston, Massachusetts 02109
                  Attention:  Norman A. Bikales, Esq.
                  Telecopier No.:  (617) 338-2880

         (b)      If to Diablo:

                  1220 Brickyard Cove Road, Suite 200
                  Point Richmond, California 94801
                  Attention: Richard D. Spight, Chairman
                  Telecopier No.: (510) 236-3799

                  with a copy to:

                  Cooper, White & Cooper
                  1333 North California Boulevard, Suite 450
                  Walnut Creek, California 94596
                  Attention: Keith Howard, Esq.
                  Telecopier No.: (510) 256-9428

or to such other person(s),  telex or facsimile  number(s) or address(es) as the
party to receive any such communication or notice may have designated by written
notice to the other party.

         9.5 Specific Performance;  Other Rights and Remedies.  Anything in this
Agreement to the contrary notwithstanding, each party recognizes and agrees that
in the event the other party  should  refuse to perform  any of its  obligations
under this  Agreement  or any  Collateral  Document,  the remedy at law would be
inadequate  and  agrees  that for breach of such  provisions,  each party not in
material breach of this Agreement or any Collateral  Document shall, in addition
to such  other  remedies  as may be  available  to it at law or in  equity or as
provided  in Article 7, be  entitled  to  injunctive  relief and to enforce  its
rights  by an  action  for  specific  performance  to the  extent  permitted  by
Applicable  Law.  Each party hereby waives any  requirement  for security or the
posting  of any  bond or other  surety  in  connection  with  any  temporary  or
permanent  award of injunctive,  mandatory or other  equitable  relief.  Nothing
herein  contained shall be construed as prohibiting each party from pursuing any
other remedies available to it pursuant to the provisions of, and subject to the
limitations  contained in, this Agreement for such breach or threatened  breach.
Notwithstanding  the  foregoing  or  any  provision  of  this  Agreement  to the
contrary,  after  the  Closing  Date  ATS  shall  not be  entitled  to  specific
performance  or any other  remedy to the extent that the cost to Diablo  arising
from the  enforcement or exercise of such remedy would exceed the amount then on
deposit in the Escrow  Indemnity Funds, in accordance with the provisions of the
Escrow Indemnity  Agreement,  for all costs and expenses  incurred in connection
with its performance of or compliance with the remedy exercised or enforced.

                                      -35-


<PAGE>




         9.6  Severability.  If any term or provision of this Agreement shall be
held or deemed  to be, or shall in fact be,  invalid,  inoperative,  illegal  or
unenforceable  as  applied  to  any  particular  case  in  any  jurisdiction  or
jurisdictions,  or in  all  jurisdictions  or  in  all  cases,  because  of  the
conflicting of any provision with any  constitution or statute or rule of public
policy or for any other reason,  such circumstance  shall not have the effect of
rendering the provision or provisions in question invalid, inoperative,  illegal
or unenforceable in any other  jurisdiction or in any other case or circumstance
or of rendering any other  provision or  provisions  herein  contained  invalid,
inoperative,  illegal or  unenforceable to the extent that such other provisions
are not themselves actually in conflict with such constitution,  statute or rule
of public policy, but this Agreement shall be reformed and construed in any such
jurisdiction or case as if such invalid,  inoperative,  illegal or unenforceable
provision had never been contained herein and such provision reformed so that it
would be valid,  operative and  enforceable to the maximum  extent  permitted in
such jurisdiction or in such case.  Notwithstanding the foregoing,  in the event
of any such  determination  the  effect  of which is to  affect  materially  and
adversely either party, the parties shall negotiate in good faith to modify this
Agreement  so as to effect  the  original  intent of the  parties  as closely as
possible to the fullest  extent  permitted by  Applicable  Law in an  acceptable
manner to the end that the  Transactions  are fulfilled and  consummated  to the
maximum extent possible.

         9.7   Counterparts.   This   Agreement   may  be  executed  in  several
counterparts,  each of  which  shall be  deemed  an  original,  but all of which
together shall constitute one and the same  instrument,  binding upon all of the
parties. In pleading or proving any provision of this Agreement, it shall not be
necessary to produce more than one of such counterparts.

         9.8 Section Headings.  The headings contained in this Agreement are for
reference  purposes  only  and  shall  not in any  way  affect  the  meaning  or
interpretation of this Agreement.

         9.9 Governing Law; Venue.  The validity,  interpretation,  construction
and  performance  of this  Agreement  shall be  governed  by, and  construed  in
accordance  with,  the  applicable  laws of the United States of America and the
laws of the State of California  applicable  to contracts  made and performed in
such State and, in any event, without giving effect to any choice or conflict of
laws provision or rule that would cause the application of domestic  substantive
laws of any other  jurisdiction.  Anything  in this  Agreement  to the  contrary
notwithstanding,  including  without  limitation the provisions of Article 8, in
the event of any dispute  between the parties  which  results in a Legal Action,
the prevailing party shall be entitled to receive from the non-prevailing  party
reimbursement for reasonable legal fees and expenses incurred by such prevailing
party in such Legal Action. In the event of any Legal Action between the parties
arising out of this  Agreement,  the  parties  agree to submit the matter to the
appropriate  municipal,  state or federal court sitting in San Francisco County,
California, and the parties agree to submit to the jurisdiction of such courts.

         9.10 Further Acts. Each party agrees that at any time, and from time to
time, before and after the consummation of the transactions contemplated by this
Agreement,  it  will do all  such  things  and  execute  and  deliver  all  such
Collateral  Documents  and other  assurances,  as any other party or its counsel
reasonably  deems  necessary  or  desirable  in order to carry out the terms and
conditions of this  Agreement  and the  transactions  contemplated  hereby or to
facilitate  the enjoyment of any of the rights  created  hereby or to be created
hereunder.

         9.11  Entire  Agreement.  This  Agreement  (together  with  the  Diablo
Disclosure  Schedule and the other Collateral  Documents delivered in connection
herewith),  constitutes  the entire  agreement of the parties and supersedes all
prior agreements and undertakings,  both written and oral,  between the parties,
with respect to the subject matter hereof,  including  without  limitation  that
certain  letter of intent,  dated  December  19, 1996,  between the parties,  as
amended by the letter dated March 19, 1997 (the "Letter of Intent").

                                      -36-


<PAGE>




         9.12 Assignment. This Agreement shall not be assignable by either party
and any such  assignment  shall be null and void,  except that it shall inure to
the benefit of and by binding  upon any  successor  to any party by operation of
law,  including by way of merger,  consolidation or sale of all or substantially
all of its assets,  and ATS may assign its rights and remedies  hereunder to any
bank or other financial institution which has loaned funds or otherwise extended
credit to it.

         9.13  Parties in  Interest.  This  Agreement  shall be binding upon and
inure  solely to the  benefit of each  party,  and  nothing  in this  Agreement,
express or implied,  including without limitation Section 2.2(c), is intended to
or shall  confer  upon any  Person  any  right,  benefit or remedy of any nature
whatsoever under or by reason of this Agreement, except as otherwise provided in
Section 9.12.

         9.14 Mutual Drafting. This Agreement is the result of the joint efforts
of Diablo and ATS,  and each  provision  hereof  has been  subject to the mutual
consultation,  negotiation  and  agreement  of the parties and there shall be no
construction  against  either  party based on any  presumption  of that  party's
involvement in the drafting thereof.

         9.15  Arbitration.  If there is any dispute between the parties to this
Agreement  which remains  unresolved for thirty (30) days or more,  either party
may,  upon  written  notice  to  the  other,  submit  such  dispute  to  binding
arbitration in San Francisco, California in accordance with the commercial rules
of the American Arbitration  Association (the "AAA") before a panel of three (3)
arbitrators  knowledgeable in the tower communications  industry, one arbitrator
chosen by ATS, one by Diablo,  and the third as mutually  agreed upon by the two
arbitrators so appointed or, in the absence of such agreement,  by the President
of the San  Francisco  Chapter of the AAA, and the decision of such panel shall,
in the absence of fraud, be conclusively binding on the parties.

         9.16  Disclosure  Schedule.  Diablo  has  delivered  to  ATS  prior  to
execution and delivery of this Agreement the Diablo Disclosure  Schedule and all
related  documents  required to be delivered by Diablo  pursuant to Article 3 of
this  Agreement.  Without  limiting the generality of the foregoing,  the Diablo
Disclosure  Schedule sets forth: (i) which  authorizations,  consents,  waivers,
orders or approvals  are a condition of Closing  pursuant to the  provisions  of
Section  6.1(a);  (ii)  which  Private   Authorizations,   Leases  and  Material
Agreements and other Contractual Obligations are a condition to Closing pursuant
to the provisions of Section 6.2(d); and (iii) which permits,  consents or other
Governmental  Authorizations of the United States Forest Service are a condition
to Closing  pursuant to the provisions of Section  6.2(m).  ATS has received and
hereby  accepts the Diablo  Disclosure  Schedule  and agrees to  consummate  the
transactions contemplated by this Agreement,  subject to the satisfaction of the
conditions  set  forth  in  Sections  6.1  and 6.2 and  subject  to the  matters
disclosed in the Diablo Disclosure Schedule.



                                      -37-


<PAGE>



         IN WITNESS  WHEREOF,  ATS and Diablo have caused this  Agreement  to be
executed  as of the  date  first  written  above by  their  respective  officers
thereunto duly authorized.

                                        American Tower Systems, Inc.


                                        By:_____________________________________
                                             Name: James S. Eisenstein
                                             Title:   Chief Operating Officer


                                        Diablo Communications, Inc.


                                        By:_____________________________________
                                             Name:
                                             Title:


         The  undersigned,  Richard D.  Spight,  the  principal  shareholder  of
Diablo,  hereby acknowledges and agrees to be bound by the provisions of Article
8, including without limitation Section 8.3(d).

                                              ----------------------------------
                                                        Richard D.  Spight










                                      -38-


<PAGE>



                                                                      APPENDIX A

                                   DEFINITIONS

         As used in this Agreement,  unless the context otherwise requires,  the
following  terms  (or any  variant  in the  form  thereof)  have  the  following
respective  meanings.  Terms  defined in the  singular  shall have a  comparable
meaning when used in the plural, and vice versa, and the reference to any gender
shall be deemed to include all genders.  Unless otherwise defined or the context
otherwise clearly  requires,  terms for which meanings are provided herein shall
have  such  meanings  when  used in the  Diablo  Disclosure  Schedule,  and each
Collateral  Document  executed or required  to be  executed  pursuant  hereto or
thereto or otherwise  delivered,  from time to time, pursuant hereto or thereto.
References  to "hereof",  "herein" or similar terms are intended to refer to the
Agreement  as a whole and not a  particular  Section,  and  references  to "this
Section"  are  intended  to refer to the  entire  Section  and not a  particular
subsection thereof.  The term "either party" shall, unless the context otherwise
requires, refer to Diablo and ATS.

         Acceptance Notice shall have the meaning given to it in Section 2.2(c).

         Accounts Receivable shall mean (a) any and all rights to the payment of
money or other forms of  consideration  of any kind at any time now or hereafter
owing or to be owing to Diablo attributable to the ownership or operation of the
Diablo Business  (whether  classified  under the Uniform  Commercial Code of any
state as accounts,  contract  rights,  chattel  paper,  general  intangibles  or
otherwise),  including without limitation accounts receivable, letters of credit
and the right to receive payment thereunder,  chattel paper, insurance proceeds,
contract rights, notes, drafts,  instruments,  documents,  acceptances,  and all
other debts, obligations and liabilities in whatever form now or hereafter owing
from any other Person, all guarantees, security and Liens for the payment of any
thereof,  and all of Diablo's rights to goods, now owned or hereafter  acquired,
sold (delivered,  undelivered,  in transit or returned) which may be represented
thereby; and (b) all proceeds of any of the foregoing.

         Acquisition  Participation Agreement shall have the meaning given to it
in Section 6.2(o).

         adverse,  adversely, when used alone or in conjunction with other terms
(including  without  limitation  "affect," "change" and "effect") shall mean any
Event which is reasonably likely, in the reasonable business judgment of ATS, to
be expected to (a)  adversely  affect the  validity  or  enforceability  of this
Agreement  or  the  likelihood  of  consummation  of  the  Transactions,  or (b)
adversely affect the business, operations,  management, properties or prospects,
or the  condition,  financial  or other,  or results of  operation of the Diablo
Business,  or (c) impair Diablo's  ability to fulfill its obligations  under the
terms of this  Agreement,  or (d)  adversely  affect  the  aggregate  rights and
remedies  of ATS  under  this  Agreement.  Notwithstanding  the  foregoing,  and
anything  in this  Agreement  to the  contrary  notwithstanding,  any  Event (i)
generally affecting the economy or the tower communications  business or (ii) of
a nature described in the "Definition" section of the Diablo Disclosure Schedule
shall not be deemed to constitute an adverse  change,  have an adverse effect or
to adversely affect or effect.

         Additional  Title Matter shall have the meaning  given to it in Section
5.7.

         Affiliate,  Affiliated shall mean, with respect to any Person,  (a) any
other Person at the time  directly or indirectly  controlling,  controlled by or
under direct or indirect  common control with such Person,  (b) any other Person
of which such Person at the time owns, or has the right to acquire,  directly or
indirectly,  twenty  percent  (20%) or more of any class of the capital stock or
beneficial  interest,  (c) any other Person  which at the time owns,  or has the
right to acquire,  directly or  indirectly,  twenty percent (20%) or more of any
class of the  capital  stock or  beneficial  interest  of such  Person,  (d) any
executive officer or director of such Person,

                                    

<PAGE>



(e) with  respect to any  partnership,  joint  venture or  similar  Entity,  any
general partner thereof, and (f) when used with respect to an individual,  shall
include any member of such individual's immediate family or a family trust.

         Agreement shall mean this Agreement as originally in effect, including,
unless the context otherwise specifically requires,  this Appendix A, the Diablo
Disclosure  Schedule  and all exhibits  hereto,  and as any of the same may from
time to time be supplemented, amended, modified or restated in the manner herein
or therein provided.

         Applicable Law shall mean any Law of any Authority, whether domestic or
foreign,  including  without  limitation  the  FCA  and all  federal  and  state
securities and  Environmental  Laws, to which a Person is subject or by which it
or any of its business or operations is subject or any of its property or assets
is bound.

         Approved Title  Conditions shall mean any one or more of the following:
(a) Liens for real property taxes and assessments not then  delinquent;  (b) the
Lien of  supplemental  Taxes assessed  pursuant to Chapter 3.5  commencing  with
Section 75 of the California  Revenue and Taxation Code, to the extent that such
supplemental  Taxes are  attributable to the  transactions  contemplated by this
Agreement; (c) matters of title approved by ATS or deemed approved in accordance
with the  provisions of Section 5.7; and (d) matters of title created  following
the date of this Agreement by or with the written consent of ATS.

         Assets shall mean the business and the tangible and  intangible  assets
used in connection  with the conduct of the business or operations of the Diablo
Business,  which  business  and  assets  are  being  exchanged,  transferred  or
otherwise conveyed hereunder, including without including without limitation the
following:


                  (a) the Personal Property;

                  (b) the Real Property;

                  (c) the Governmental Authorizations;

                  (d) the Private Authorizations;

                  (e)  the   Contracts   (other   than  the  Diablo   Nonassumed
         Obligations);

                  (f) the corporate name of Diablo and all variations thereof;

                  (g)  all   Intellectual   Property   and   other   proprietary
         information,  which relate to the Diablo  Business,  including  without
         limitation,  technical  information  and data,  machinery and equipment
         warranties, maps, computer discs and tapes, plans, diagrams, blueprints
         and schematics,  including filings with all Authorities which relate to
         the Diablo Business;

                  (h) all claims,  choses in action and rights under  warranties
         relating to the Diablo Business or any of the Diablo Assets;

                  (i)  all  books  and  records  relating  to the  ownership  or
         operation of the Diablo  Assets or the conduct of the Diablo  Business,
         including  executed  copies of Leases,  Material  Agreements  and other
         written  Contracts,  and all records  required by Applicable  Law to be
         kept,  subject to the right of the  conveying  party to have such books
         and records  made  available  to it for such time as may be  reasonably
         required in connection with audits, defense or prosecution of lawsuits,
         or other legitimate

                                       A-2


<PAGE>



         business  purposes.  The  records  described  herein  shall not include
         corporate seals,  certificates of  incorporation,  minute books,  stock
         books,  tax returns or other  records  having to do with the  corporate
         organization of Diablo; and

                  (j)  any  and all  products,  profits  and  proceeds  of,  and
         including  without  limitation  any Claims with  respect to, any of the
         foregoing;

         provided,  however, that notwithstanding the foregoing, the term Assets
         shall not include any of the Excluded Assets.

         ATS shall have the meaning given to it in the Preamble.

         ATS Accrued Sick Time  Liability  shall have the meaning given to it in
Section 2.2(c).

         ATS Assumed  Vacation  Liability  shall have the meaning given to it in
Section 2.2(c).

         ATS' Environmental Notice shall have the meaning given to it in Section
5.8.

         ATS' Title Notice shall have the meaning given to it in Section 5.7.

         Authority shall mean any governmental or quasi-governmental  authority,
whether  administrative,  executive,  judicial,  legislative  or  other,  or any
combination   thereof,   including  without   limitation  any  federal,   state,
territorial,   county,   municipal  or  other   government  or  governmental  or
quasi-governmental agency, arbitrator,  authority,  board, body, branch, bureau,
central bank or comparable  agency or Entity,  commission,  corporation,  court,
department,  instrumentality,  master, mediator, panel, referee, system or other
political unit or  subdivision or other Entity of any of the foregoing,  whether
domestic or foreign., including without limitation the FCC.

         Benefit Arrangement shall mean any material benefit arrangement that is
not a Plan,  including  (a)  any  employment  or  consulting  agreement  (b) any
arrangement providing for insurance coverage or workers' compensation  benefits,
(c) any  incentive  bonus or deferred  bonus  arrangement,  (d) any  arrangement
providing termination  allowance,  severance or similar benefits, (e) any equity
compensation plan, (f) any deferred  compensation plan, and (g) any compensation
policy and  practice,  but only to the  extent  that it covers or relates to any
officer, employee or other Person involved in the ownership and operation of the
Assets or the conduct of the business of the Diablo Business.

         Black Mountain  Communications  Site shall have the meaning given to it
in Section 3.5(a).

         Black Mountain Easement Agreement shall have the meaning given to it in
Section 6.2(p).

         CAAP shall mean the  accounting  principles  used by the Company in the
preparation  of the Financial  Statements  and described in general terms in the
Disclosure  Schedule,  such principles applied on a consistent basis,  except as
otherwise heretofore disclosed in the Disclosure Schedule.  The requirement that
such principles be consistently applied means that the accounting  principles in
a current  period are  comparable  in all material  respect to those  applied in
preceding period.  All accounting and financial terms used in this Agreement and
the  compliance  with each covenant  contained in this Agreement that relates to
financial  matters  shall  be  determined  in  accordance  with  the  accounting
principles referred to in this paragraph (except as otherwise specifically noted
in certain of the definitions where the term GAAP is used).


                                       A-3


<PAGE>



         Claims shall mean any and all debts, liabilities,  obligations, losses,
damages,  deficiencies,  assessments  and  penalties,  together  with all  Legal
Actions, pending or threatened, claims and judgments of whatever kind and nature
relating  thereto,  and all fees, costs,  expenses and disbursements  (including
without  limitation  reasonable  attorneys'  and  other  legal  fees,  costs and
expenses) relating to any of the foregoing.

         Closing shall have the meaning given to it in Section 2.3.

         Closing Date shall have the meaning given to it in Section 2.3.

         COBRA shall mean the Consolidated Omnibus Budget  Reconciliation Act of
1985,  as  amended,  as set  forth  in  Section  4980B of the Code and Part 6 of
Subtitle B of Title I of ERISA.

         Code shall mean the Internal  Revenue  Code of 1986,  and the rules and
regulations  thereunder,  all as from time to time in effect,  or any  successor
law,  rules or  regulations,  and any  reference to any  statutory or regulatory
provision  shall be deemed  to be a  reference  to any  successor  statutory  or
regulatory provision.

         Collateral  Document  shall mean the Escrow  Agreement,  the  Indemnity
Escrow Agreement,  the Acquisition  Participation  Agreement,  the Nonassignable
Contracts Agreement, the Black Mountain Easement Agreement, the Drake Lease, the
Exclusivity Agreement, the TCI Agreement, special warranty deeds, bills of sale,
assignments of  intangibles,  assumption  agreements  with respect to the Diablo
Assumed Obligations,  other instruments of conveyance and assignment  sufficient
to vest in ATS title to all of the other Diablo Assets and the Diablo  Business,
and any other agreement,  certificate,  contract, instrument, notice, opinion or
other  document  delivered  pursuant to the  provisions of this Agreement or any
Collateral Document.

         Collection Period shall have the meaning given to it in Section 2.4.

         Construction  Adjustment  shall have the meaning given to it in Section
2.3.

         Contract, Contractual Obligation shall mean any agreement, arrangement,
commitment,  contract, covenant,  indemnity,  undertaking or other obligation or
liability  which involves the ownership or operation of the Diablo Assets or the
conduct of the Diablo Business.

         Control (including the terms  "controlled,"  "controlled by" and "under
common control with") means the possession, directly or indirectly or as trustee
or executor,  of the power to direct or cause the direction of the management or
policies of a Person,  or the disposition of such Person's assets or properties,
whether through the ownership of stock, equity or other ownership,  by contract,
arrangement or understanding,  or as trustee or executor,  by contract or credit
arrangement or otherwise.

         DCSC  shall  have  the  meaning  given  to it  in  the  fourth  Whereas
paragraph.

         Diablo shall have the meaning given to it in the Preamble.

         Diablo Assumable  Agreements shall mean all obligations and liabilities
of Diablo under all Leases,  Material Agreements,  Governmental  Authorizations,
Private  Authorizations  and other  Contractual  Obligations  not required to be
listed on Section  3.16 of the Diablo  Disclosure  Schedule  entered into in the
ordinary course of business and relating to the ownership or operation of any of
the Diablo Assets or the
conduct of the Diablo Business.

         Diablo Assets shall have the meaning given to it in Section 2.1.


                                       A-4


<PAGE>



         Diablo  Assumed  Liabilities  shall  have  the  meaning  given to it in
Section 2.2(b).

         Diablo  Business shall have the meaning given them in the first Whereas
paragraph.

         Diablo Disclosure  Schedule shall mean the Diablo  Disclosure  Schedule
dated as of the date of this Agreement delivered by Diablo to ATS.

         Diablo  Employees  shall  have  the  meaning  given  it in the  Section
3.15(a).

         Diablo  Financial  Statements  shall  have the  meaning  given to it in
Section 3.2(b).

         Diablo  Nonassumed  Obligations  shall have the meaning  given to it in
Section 2.2(b).

         Diablo Personal  Property shall have the meaning given to it in Section
3.5(c).

         Diablo's  Environmental  Notice  shall have the meaning  given to it in
Section 5.8.

         Diablo's  knowledge means the actual knowledge of any Diablo officer or
senior  manager,  as such knowledge  exists on the date of this Agreement and no
later date, after reasonable review of appropriate Diablo records.

         Diablo's  Title  Notice  shall have the meaning  given to it in Section
5.7.

         Drake Lease shall have the meaning given to it in Section 6.2(q).

         Employment   Arrangement  shall  mean,  with  respect  to  Diablo,  any
employment,  consulting,  retainer,  severance or similar  contract,  agreement,
plan,  arrangement or policy (exclusive of any which is terminable within thirty
(30) days  without  liability,  penalty  or payment of any kind by Diablo or any
Affiliate), or providing for severance, termination payments, insurance coverage
(including any  self-insured  arrangements),  workers  compensation,  disability
benefits,   life,  health,   medical,   dental  or   hospitalization   benefits,
supplemental unemployment benefits,  vacation or sick leave benefits, pension or
retirement benefits or for deferred compensation, profit-sharing, bonuses, stock
options,  stock  purchase or  appreciation  rights or other  forms of  incentive
compensation  or  post-retirement  insurance,  compensation  or  post-retirement
insurance, compensation or benefits, or any collective bargaining or other labor
agreement,  whether or not any of the foregoing is subject to the  provisions of
ERISA, but only to the extent that it covers or relates to any officer, employee
or other Person  involved in the  ownership or operation of the Diablo Assets or
the conduct of the Diablo Business.

         Encumber  shall  mean  to  suffer,  accept,  agree  to  or  permit  the
imposition of a Lien.

         Entity shall mean any corporation,  firm, unincorporated  organization,
association,  partnership,  limited  liability  company,  trust  (inter vivos or
testamentary),  estate of a deceased, insane or incompetent individual, business
trust,  joint stock  company,  joint  venture or other  organization,  entity or
business,  whether acting in an individual,  fiduciary or other capacity, or any
Authority.

         Environmental  Company  shall have the  meaning  given to it in Section
5.8.

         Environmental Law shall mean any Law relating to or otherwise  imposing
liability or  standards of conduct  concerning  pollution or  protection  of the
environment,   including   without   limitation   Laws  relating  to  emissions,
discharges,  releases or  threatened  releases of  Hazardous  Materials or other
chemicals or

                                       A-5


<PAGE>



industrial  pollutants,  substances,  materials  or wastes into the  environment
(including, without limitation, ambient air, surface water, ground water, mining
or  reclamation or mined land,  land surface or subsurface  strata) or otherwise
relating  to  the  manufacture,   processing,  generation,   distribution,  use,
treatment,  storage,  disposal,  cleanup,  transport or handling of  pollutants,
contaminants,  chemicals or industrial, toxic or hazardous substances, materials
or wastes. Environmental Laws shall include without limitation the Comprehensive
Environmental  Response,  Compensation and Liability Act (42 U.S.C. Section 6901
et seq.), the Hazardous Material  Transportation Act (49 U.S.C.  Section 1801 et
seq.),  the Resource  Conservation  and Recovery Act (42 U.S.C.  Section 6901 et
seq.), the Federal Water Pollution Control Act (33 U.S.C. Section 1251 et seq.),
the Clean Air Act (42 U.S.C. Section 7401 et seq.), the Toxic Substances Control
Act (15 U.S.C. Section 2601 et seq.), the Occupational Safety and Health Act (29
U.S.C.  Section 651 et seq.), the Federal Insecticide  Fungicide and Rodenticide
Act (7  U.S.C.  Section  136 et  seq.),  and  the  Surface  Mining  Control  and
Reclamation  Act of 1977 (30 U.S.C.  Section  1201 et seq.),  and any  analogous
federal,   state,  local  or  foreign,  Laws,  and  the  rules  and  regulations
promulgated  thereunder all as from time to time in effect, and any reference to
any statutory or regulatory  provision  shall be deemed to be a reference to any
successor statutory or regulatory provision.

         Environmental Permit shall mean any Governmental Authorization required
by or pursuant to any Environmental Law.

         Environmental  Reports  shall have the  meaning  given to it in Section
5.8.

         ERISA shall mean the Employee  Retirement  Income Security Act of 1974,
and the rules and regulations thereunder, all as from time to time in effect, or
any successor law, rules or  regulations,  and any reference to any statutory or
regulatory  provision  shall  be  deemed  to be a  reference  to  any  successor
statutory or regulatory provision.

         ERISA  Affiliate  shall  mean any  Person  that is  treated as a single
employer  with Diablo  under  Sections  414(b),  (c),  (m) or (o) of the Code or
Section 4001(b)(1) of ERISA.

         Escrow  Agent shall have the meaning  given to it in the third  Whereas
paragraph.

         Escrow  Agreement  shall  have the  meaning  given  to it in the  third
Whereas paragraph.

         Escrow  Deposit shall have the meaning given to it in the third Whereas
paragraph.

         Event  shall  mean the  existence  or  occurrence  of any act,  action,
activity,  circumstance,  condition,  event,  fact,  failure  to act,  omission,
incident or practice, or any set or combination of any of the foregoing.

         Exchange Act shall mean the  Securities  Exchange Act of 1934,  and the
rules and  regulations  thereunder,  all as from time to time in effect,  or any
successor  law,  rules or  regulations,  and any  reference to any  statutory or
regulatory  provision  shall  be  deemed  to be a  reference  to  any  successor
statutory or regulatory provision.

         Excluded Assets shall have the meaning given to it in Section 2.1.

         Exclusivity  Agreement  shall have the  meaning  given to it in Section
6.2(r).

         FCA  shall  mean the  Communication  Act of  1934,  and the  rules  and
regulations  thereunder,  all as from time to time in effect,  or any  successor
law,  rules or  regulations,  and any  reference to any  statutory or regulatory
provision  shall be deemed  to be a  reference  to any  successor  statutory  or
regulatory provision.

                                       A-6


<PAGE>



         FCC shall mean the Federal Communications  Commission and shall include
any successor Authority.

         Final  Order  shall  mean,  with  respect to any  Authority,  including
without  limitation  the FCC, one with respect to which no appeal,  no stay,  no
petition or application for rehearing, reconsideration,  review or stay, whether
on motion of the applicable Authority or other Person or otherwise, and no other
Legal Action contesting such consent or approval, is in effect or pending and as
to  which  the  time or  deadline  for  filing  any  such  appeal,  petition  or
application  or other Legal  Action has expired or, if filed,  has been  denied,
dismissed or  withdrawn,  and the time or deadline for  instituting  any further
Legal Action has expired.

         GAAP shall mean means,  except to the extent that a deviation therefrom
is expressly required by this Agreement, such principles applied on a consistent
basis,  (i) as set forth in Opinions of the Accounting  Principles  Board of the
American  Institute  of  Certified  Public   Accountants   ("AICPA")  and/or  in
statements of the Financial  Accounting  Standards  Board that are applicable in
the  circumstances as of the date in question,  (ii) when not inconsistent  with
such  opinions  and  statements,  as set forth in other AICPA  publications  and
guidelines  and/or  (iii)  that  otherwise  arise by custom  for the  particular
industry, all as the same shall exist on the date of this Agreement.

         Governmental  Authorizations  shall  mean all  approvals,  concessions,
consents,   franchises,   licenses,  permits,  plans,  registrations  and  other
authorizations  of all  Authorities,  including  without  limitation  the United
States Forest  Service and the Federal  Aviation  Administration,  in connection
with the  ownership  or  operation  of the Diablo  Assets or the  conduct of the
Diablo Business.

         Governmental  Filings shall mean all filings,  including  franchise and
similar Tax  filings,  and the payment of all fees,  assessments,  interest  and
penalties associated with such filings, with all Authorities.

         Hart-Scott-Rodino Act shall mean the Hart-Scott-Rodino  Improvement Act
of 1976, as from time to time in effect, or any successor law, and any reference
to any  statutory  provision  shall be deemed to be a reference to any successor
statutory provision.

         Hazardous  Materials  shall mean and include any  substance,  material,
waste, constituent, compound, chemical, natural or man-made element or force (in
whatever state of matter):  (a) the presence of which requires  investigation or
remediation under any Environmental  Law, or (b) that is defined as a "hazardous
waste" or  "hazardous  substance"  under any  Environmental  Law; or (c) that is
toxic, explosive,  corrosive,  etiologic,  flammable,  infectious,  radioactive,
carcinogenic,   mutagenic  or  otherwise  hazardous  and  is  regulated  by  any
applicable Authority or subject to any Environmental Law; or (d) the presence of
which on the real property owned or leased by such Person causes or threatens to
cause a nuisance upon any such real property or to adjacent  properties or poses
or threatens to pose a hazard to the health or safety of persons on or about any
such real property;  or (e) the presence of which on adjacent  properties  could
constitute a trespass by such Person; or (f) that contains gasoline, diesel fuel
or other  petroleum  hydrocarbons,  or any  by-products  or  fractions  thereof,
natural gas,  polychlorinated  biphenyls ("PCBs") and PCB-containing  equipment,
radon or other radioactive elements,  ionizing radiation,  electromagnetic field
radiation  and other  non-ionizing  radiation,  sonic  forces and other  natural
forces,  lead,  asbestos  or  asbestos-containing  materials  ("ACM"),  or  urea
formaldehyde foam insulation.

         Indebtedness  shall mean,  with  respect to any Person,  (a) all items,
except  items of  capital  stock or of  surplus  or of  general  contingency  or
deferred tax reserves or any minority  interest in any Subsidiary of such Person
to the extent such interest is treated as a liability with indeterminate term on
the  consolidated  balance sheet of such Person,  which in accordance  with GAAP
would be included in  determining  total  liabilities  as shown on the liability
side of a balance sheet of such Person, (b) all obligations  secured by any Lien
to which any property or asset owned or held by such Person is subject,  whether
or not the obligation

                                       A-7


<PAGE>



secured  thereby  shall have been  assumed,  and (c) to the extent not otherwise
included,  all Contractual  Obligations of such Person constituting  capitalized
leases and all  obligations  of such Person with respect to Leases  constituting
part of a sale and leaseback arrangement.

         Indebtedness  for Money  Borrowed  shall mean,  with respect to Diablo,
money borrowed and Indebtedness represented by notes payable and drafts accepted
representing   extensions  of  credit,  all  obligations   evidenced  by  bonds,
debentures,  notes or other similar instruments, the maximum amount currently or
at any time thereafter  available to be drawn under all  outstanding  letters of
credit  issued  for the  account of such  Person,  all  Indebtedness  upon which
interest  charges are  customarily  paid by such  Person,  and all  Indebtedness
(including  capitalized lease obligations)  issued or assumed as full or partial
payment  for  property  or  services,  whether  or not any such  notes,  drafts,
obligations or Indebtedness represent Indebtedness for money borrowed, but shall
not include (a) trade payables,  (b) expenses  accrued in the ordinary course of
business,  (c) customer advance payments and customer  deposits  received in the
ordinary course of business,  or (d) conditional sales agreements not prohibited
by the terms of this Agreement.

         Indemnity  Escrow  Agent shall have the meaning  given to it in Section
6.2(k).

         Indemnity  Escrow  Agreement  shall  have  the  meaning  given to it in
Section 6.2(k).

         Indemnity  Escrow  Fund shall have the  meaning  given to it in Section
2.3.

         Insured  Real  Property  shall have the meaning  given to it in Section
5.7.

         Intangible  Assets shall mean all assets and property  lacking physical
properties the evidence of ownership of which must  customarily be maintained by
independent  registration,  documentation,  certification,  recordation or other
means,  and  shall  include,   without  limitation,   concessions,   copyrights,
franchises,  license, patents, permits, service marks, trademarks,  trade names,
and applications with respect to any of the foregoing, technology and know-how.

         Intellectual  Property  shall mean any and all  research,  information,
inventions,  designs,  procedures,  developments,   discoveries,   improvements,
patents and applications therefor, trademarks and applications therefor, service
marks, trade names, copyrights and applications therefor,  logos, trade secrets,
drawing, plans, systems,  methods,  specifications,  computer software programs,
tapes, discs and related data processing  software (including without limitation
object and source  codes)  owned by such Person or in which it has an  ownership
interest  and all other  manufacturing,  engineering,  technical,  research  and
development data and know-how made, conceived, developed and/or acquired by such
Person,  which  relate  to the  manufacture,  production  or  processing  of any
products  developed  or sold by such  Person or which are within the scope of or
usable in connection  with such Person's  business as it may, from time to time,
hereafter be conducted or proposed to be conducted.

         Interim Adjustment shall have the meaning given to it in Section 2.3.

         Interim  Financing Note shall have the meaning given to it in the fifth
Whereas paragraph.

         Law shall mean any (a) administrative,  judicial,  legislative or other
action,  code,  consent  decree,  constitution,  decree,  directive,  enactment,
finding, guideline, law, injunction, interpretation, judgment, order, ordinance,
policy statement,  proclamation,  promulgation,  regulation,  requirement, rule,
rule of law, rule of public policy,  settlement  agreement,  statute, or writ of
any  Authority,  domestic  or  foreign;  (b) the common  law,  or other legal or
quasi-legal  precedent;  or (c)  arbitrator's,  mediator's  or referee's  award,
decision,  finding or recommendation;  including, in each such case or instance,
any interpretation, directive, guideline or

                                       A-8


<PAGE>



request, whether or not having the force of law including, in all cases, without
limitation any particular section, part or provision thereof.

         Lease  shall mean any lease of  property,  whether  real,  personal  or
mixed, and all amendments thereto.

         Legal  Action  shall  mean,  with  respect to any  Person,  any and all
litigation   or   legal   or   other   actions,   arbitrations,   counterclaims,
investigations, proceedings, requests for material information by or pursuant to
the  order of any  Authority  or  suits,  at law or in  arbitration,  equity  or
admiralty,  whether or not  purported  to be  brought on behalf of such  Person,
affecting such Person or any of such Person's business, property or assets.

         Letter of Intent shall have the meaning given to it in Section 9.11.

         Lien shall mean any of the  following:  mortgage;  lien  (statutory  or
other);  or other security  agreement,  arrangement or interest;  hypothecation,
pledge  or  other  deposit  arrangement;  assignment;  charge;  levy;  executory
seizure;   attachment;   garnishment;   encumbrance   (including  any  easement,
exception,  reservation or limitation,  right of way, and the like); conditional
sale,  title  retention  or other  similar  agreement,  arrangement,  device  or
restriction;   preemptive  or  similar  right;  any  financing  lease  involving
substantially  the same economic  effect as any of the foregoing;  the filing of
any financing  statement under the Uniform  Commercial Code or comparable law of
any  jurisdiction;  restriction on sale,  transfer,  assignment,  disposition or
other alienation; or any option, equity, claim or right of or obligation to, any
other Person, of whatever kind and character.

         Like-Kind Notice shall have the meaning given to it in Section 2.5.

         Loss and Expense shall have the meaning given to it in Section 8.2.

         material, materially or materiality for the purposes of this Agreement,
shall, unless specifically stated to the contrary,  be determined without regard
to the fact that various  provisions of this Agreement set forth specific dollar
amounts.

         Material  Agreement shall mean, with respect to Diablo, any Contractual
Obligation  which (a) was not entered into in the  ordinary  course of business,
(b) was entered into in the ordinary  course of business  which (i) involved the
purchase,  sale or lease  of  goods  or  materials,  or  purchase  of  services,
aggregating more than $20,000,  (ii) extends for more than three (3) months,  or
(iii) is not  terminable on thirty (30) days or less notice  without  penalty or
other payment,  (c) involves a capitalized  lease obligation or Indebtedness for
Money  Borrowed,  (d) is or  otherwise  constitutes  a written  agency,  broker,
dealer,  license,  distributorship,  sales  representative  or  similar  written
agreement,  (e) is with the United States Forest Service or any other Authority,
or (f) involves the management by Diablo of any communication tower of any other
Person.

         Multiemployer  Plan shall mean a Plan which is a  "multiemployer  plan"
within the meaning of Section 4001(a)3 of ERISA.

         Nonassignable  Contracts  shall have the meaning given to it in Section
2.2(c).

         Nonassignable Contracts Agreement shall have the meaning given to it in
Section 6.2(n).

         Note Agreement  shall have the meaning given to it in the fifth Whereas
paragraph.


                                       A-9


<PAGE>



         Organic  Document  shall  mean,  with  respect  to a Person  which is a
corporation,  its charter,  its by-laws and all shareholder  agreements,  voting
trusts and similar arrangements applicable to any of its capital stock and, with
respect to a Person which is a  partnership,  its agreement and  certificate  of
partnership,  any  agreements  among  partners,  and any  management and similar
agreements  between the partnership  and any general  partners (or any Affiliate
thereof).

         Other  Agreement  shall  have the  meaning  given  to it in the  fourth
Whereas paragraph.

         Other  Agreement  Claims shall have the meaning  given to it in Section
8.3(a).

         PBGC shall mean the Pension Benefit Guaranty Corporation and any Entity
succeeding to any or all of its functions under ERISA.

         Permitted  Liens  shall  mean (a) Liens  current  taxes not yet due and
payable, (b) such imperfections of title, easements,  encumbrances and mortgages
or  other  Liens,  if  any,  as  are  not,  individually  or in  the  aggregate,
substantial in character,  amount or extent and do not  materially  detract from
the value, or materially interfere with the present use, of the property subject
thereto or affected thereby,  or otherwise  materially impair the conduct of the
Diablo Business,  and (c) such other Liens as are permitted by the provisions of
this Agreement to be in place on the Closing Date.

         Person shall mean any natural individual or any Entity.

         Personal  Property shall mean all of the machinery,  equipment,  tools,
vehicles, furniture, leasehold improvements, office equipment, plant, inventory,
spare parts and other  tangible  personal  property which are owned or leased by
Diablo and used or useful as of the date hereof in the  conduct of the  business
or operations of the Diablo Business,  plus such additions thereto and deletions
therefrom arising in the ordinary course of business between the date hereof and
the Closing Date.

         Plan shall mean,  with respect to any Person and at a particular  time,
any employee benefit plan which is covered by ERISA and in respect of which such
Person or an ERISA  Affiliate is (or, if such plan were terminated at such time,
would under  Section 4069 of ERISA be deemed to be) an  "employer" as defined in
Section  3(5) of ERISA,  but only to the extent that it covers or relates to any
officer, employee or other Person involved in the ownership and operation of the
Assets or the conduct of the business of the Diablo Business.

         Prepaid Expense shall mean any item which in accordance with GAAP would
be treated as an expense and which has been paid by Diablo  prior to the Closing
and relates to a period subsequent to the Closing.

         Prepaid Revenue shall mean any item which in accordance with GAAP would
be treated as revenue and which has been received by Diablo prior to the Closing
and relates to a period subsequent to the Closing.

         Private Authorizations shall mean all approvals, concessions, consents,
franchises,  licenses,  permits,  and other authorizations of all Persons (other
than   Authorities)   including   without   limitation  those  with  respect  to
Intellectual Property.

         Pro Ratable Taxes shall mean real estate and other property  Taxes,  ad
valorem Taxes,  gross  receipts  Taxes and similar Taxes,  but shall not include
federal, state or local income Taxes, franchise Taxes or other Taxes measured by
or based upon income or gain on sale or other disposition of property or assets.

         Purchase Price shall have the meaning given to it in Section 2.3.

                                      A-10


<PAGE>



         Retained  Accounts  Receivable  shall have the  meaning  given to it in
Section 2.4.

         Real Property shall mean all of the fee estates and buildings and other
fixtures and improvements  thereon,  leasehold  interest,  easements,  licenses,
rights to access,  right-of-  way, and other real  property  interest  which are
owned or used by Diablo as of the date hereof,  in the  operations of the Diablo
Business,  plus such additions  thereto and deletions  therefrom  arising in the
ordinary course of business between the date hereof and the Closing Date.

         Regulations  shall mean the federal income tax regulations  promulgated
under  the Code,  as such  Regulations  may be  amended  from time to time.  All
references  herein to specific  sections of the Regulations shall be deemed also
to refer to any  corresponding  provisions  of succeeding  Regulations,  and all
references  to  temporary  Regulations  shall  be  deemed  also to  refer to any
corresponding provisions of final Regulations.

         Representatives shall have the meaning given to it in Section 5.1(a).

         SEC shall mean the United States Securities and Exchange Commission, or
any successor Authority.

         Securities Act shall mean the Securities Act of 1933, and the rules and
regulations of the SEC  thereunder,  all as from time to time in effect,  or any
successor  law,  rules or  regulations,  and any  reference to any  statutory or
regulatory  provision  shall  be  deemed  to be a  reference  to  any  successor
statutory or regulatory provision.

         Spight shall have the meaning given to it in Section 6.2(j).

         Spight  Noncompetition  Agreement shall have the meaning given to it in
Section 6.2(j).

         Subsidiary shall mean, with respect to a Person,  any Entity a majority
of the capital stock  ordinarily  entitled to vote for the election of directors
of which,  or if no such voting stock is  outstanding,  a majority of the equity
interests of which, is owned directly or indirectly, legally or beneficially, by
such Person or any other Person controlled by such Person.

         Tax (and "Taxable",  which shall mean subject to Tax), shall mean, with
respect to any Person,  (a) all taxes (domestic or foreign),  including  without
limitation any income (net, gross or other including  recapture of any tax items
such as  investment  tax  credits),  alternative  or add-on  minimum tax,  gross
income,  gross receipts,  gains,  sales, use, leasing,  lease, user, ad valorem,
transfer, recording, franchise, profits, property (real or personal, tangible or
intangible),  fuel,  license,  withholding on amounts paid to or by such Person,
payroll,  employment,  unemployment,  social security, excise, severance, stamp,
occupation, premium, environmental or windfall profit tax, custom, duty or other
tax, or other like  assessment or charge of any kind  whatsoever,  together with
any  interest,  levies,  assessments,  charges,  penalties,  addition  to tax or
additional  amount  imposed  by any Taxing  Authority,  (b) any joint or several
liability of such Person with any other Person for the payment of any amounts of
the type  described in (a) and (c) any  liability of such Person for the payment
of any  amounts  of the type  described  in (a) as a result  of any  express  or
implied obligation to indemnify any other Person.

         Tax  Allocation  Schedule shall have the meaning given to it in Section
2.3.

         Tax  Claim  shall  mean any Claim  which  relates  to Taxes,  including
without limitation the representations and warranties set forth in Section 3.11.


                                      A-11


<PAGE>


         Tax Return or Returns shall mean all returns, consolidated or otherwise
(including without limitation  information  returns),  required to be filed with
any Authority with respect to Taxes.

         Taxing   Authority  shall  mean  any  Authority   responsible  for  the
imposition of any Tax.

         TCI Agreement shall have the meaning given to it in Section 6.2(s).

         Title Company shall have the meaning given to it in Section 5.7.

         Title Reports shall have the meaning given to it in Section 5.7.

         Termination Date shall have the meaning given to it in Section 7.1.

         Transactions shall mean the transactions contemplated to be consummated
on or prior to the Closing Date,  including without  limitation the purchase and
sale of the Diablo Assets and the Diablo  Business and the  execution,  delivery
and performance of the Collateral Documents.

         U.S.  Navy Claim means all  obligations,  liabilities  and other Claims
with respect to the T.V. Hill Site and the U.S. Navy,  including those of Watson
Communications  Systems,  Inc., a former  partner of Diablo  and/or  Spight with
respect  thereto and of Diablo to the U.S.  Navy with respect to its guaranty of
the obligations and liabilities of Watson Communications Systems, Inc.




                                      A-12





                                                                   EXHIBIT 10.4b










                          SECURITIES PURCHASE AGREEMENT



                                 NOTES DUE 2000

                                       of

                           DIABLO COMMUNICATIONS, INC.


                                 March 20, 1997












<PAGE>






<TABLE>
<CAPTION>
                                TABLE OF CONTENTS

                                                                                                                Page
<S>      <C>                                                                                                     <C>
         1.  Issue and Sale of Securities.........................................................................1
                  1.1  Description of Securities..................................................................1
                  1.2  Purchase and Sale..........................................................................2
                  1.3  Closing....................................................................................2

         2.  Representations and Warranties of Company............................................................4
                  2.1  Organization and Business; Power and Authority.............................................4
                  2.2  Business; Financial Information............................................................5
                  2.3  Changes in Condition.......................................................................5
                  2.4  Title to Properties; Leases................................................................5
                  2.5  Compliance with Governmental Authorizations and Applicable Law.............................6
                  2.6  Related Transactions.......................................................................7
                  2.7  Tax Matters................................................................................7
                  2.8  Employment Arrangements....................................................................7
                  2.9  Ordinary Course of Business................................................................7
                  2.10  Private Sale..............................................................................9
                  2.11  Disclosure................................................................................9
                  2.12  Use of Proceeds..........................................................................10
                  2.13  Material Agreements and Private Authorizations...........................................10
                  2.14  Employee Retirement Income Security Act of 1974..........................................10
                  2.15  Authorized and Outstanding Capital Stock ................................................10
                  2.16  Inapplicability of Specified Statutes....................................................11

         3.  Representations, Warranties and Covenants of American...............................................11
                  3.1  Organization and Business; Power and Authority............................................11
                  3.2  Investment Representation.................................................................12
                  3.3  Covenant Regarding Transfer...............................................................12

         4.  Conditions of Closing...............................................................................12
                  4.1  Company's Officer's Certificate.  ........................................................12
                  4.2  Company's Secretary's Certificate.  ......................................................13
                  4.3  Opinion of Company Counsel.  .............................................................13
                  4.4  Legality; Governmental and Other Authorizations.  ........................................13

         5.  Payment and Exchange of Notes; Lost Notes...........................................................13
                  5.1  Payments..................................................................................13
                  5.2  Exchange..................................................................................14
                  5.3  Replacement of Notes......................................................................15
                  5.4  Transfer Office and Record of Holders of Notes............................................15
                  5.5  Transfer of Notes.........................................................................15
                  5.6  Registered Owners of Notes................................................................16
                  5.7 Limitation on Transfer of Notes............................................................16

         6.  Payment Provisions..................................................................................16

                                       

<PAGE>


                                                                                                               Page



                  6.1  Required Payments.........................................................................16
                  6.2  Restriction on Optional Payments..........................................................16
                  6.3  Notice of Payment and Offers to Repurchase................................................17
                  6.4  Maturity; No Reissue......................................................................17
                  6.5  Purchase of Notes.........................................................................17

         7.  Special Covenants of Company........................................................................17
                  7.1  Payments..................................................................................18
                  7.2  Prompt Payment of Taxes and Indebtedness..................................................18
                  7.3  Conduct of Business.......................................................................18
                  7.4  Maintenance of Property and Leases........................................................18
                  7.5  Maintenance of Insurance..................................................................19
                  7.6  Maintenance of Accounts and Records.......................................................19
                  7.7  Compliance With Laws......................................................................19
                  7.8  Miscellaneous Information.................................................................19
                  7.9  Information and Reports to Be Furnished by Company........................................20
                  7.10  Liens....................................................................................21
                  7.11  Distributions............................................................................21
                  7.12  Consolidation, Merger and Acquisition....................................................22
                  7.13  Prohibited Transactions..................................................................22
                  7.14  Compliance with ERISA....................................................................23
                  7.15  Indebtedness.............................................................................23
                  7.16 Operation of the Business.................................................................23
                  7.17  Issue of Equity Securities...............................................................24

         8.  Defaults.  .........................................................................................24
                  8.1  Events of Default.........................................................................24
                  8.2  Notice to the Holders.....................................................................26
                  8.3  Annulment of Defaults.....................................................................27
                  8.4  Waiver by Company; Severability of Remedies...............................................27
                  8.5  No Waiver of Rights.......................................................................27
                  8.6  Costs and Expenses of Collection..........................................................27
                  8.7  Remedies Cumulative.......................................................................28
         9.  Definitions.........................................................................................28

         10.  Miscellaneous Provisions...........................................................................39
                  10.1  Stamp and Other Taxes....................................................................39
                  10.2  Expenses.................................................................................40
                  10.3  Survival of Covenants; Successors and Assigns............................................40
                  10.4  Notices and Communications...............................................................40
                  10.5  Amendments and Waivers...................................................................41
                  10.6  Governing Law; Venue.....................................................................41

                                      -ii-

<PAGE>


                                                                                                               Page



                  10.7  Entire Agreement.........................................................................42
                  10.8  Saturdays, Sundays, Holidays, etc........................................................42
                  10.9  Brokers, etc.............................................................................42
                  10.10  Headings; Counterparts..................................................................42
                  10.11  Severability............................................................................42
                  10.12  Further Assurances......................................................................43
                  10.13  Specific Performance; Other Rights......................................................43
                  10.14  Non-Recourse Obligation.................................................................43
</TABLE>


SCHEDULES:

         DISCLOSURE SCHEDULE

EXHIBITS

         Exhibit A:        Form of Note
         Exhibit B:        Form of Additional Compensation Certificate


                                      -iii-

<PAGE>





         THIS SECURITIES PURCHASE AGREEMENT (this "Agreement"), made as of March
20, 1997, by and between Diablo  Communications,  Inc., a California corporation
(the  "Company"),  and American  Tower  Systems,  Inc.,  a Delaware  corporation
("American" or the "Purchaser").

                              W I T N E S S E T H:

         WHEREAS,  American  and the  Company are parties to a letter of intent,
dated as of December 19, 1996,  as amended as of the date hereof (the "Letter of
Intent"), relating to an asset purchase agreement to be negotiated, executed and
delivered  by the parties  (the  "Acquisition  Agreement"),  with respect to the
acquisition  (the  "Acquisition")  by  American  of  substantially  all  of  the
communications  tower  and  management  business  of the  Company  (the  "Diablo
Business");

         WHEREAS,  the  Company  proposes to issue and sell on the date hereof a
Note in the principal amount of $650,000 and American is willing to purchase the
Initial Note in order to provide funds to the Company for corporate purposes;

         WHEREAS,  American and Diablo  Communications  of Southern  California,
Inc.,  a  California  corporation  ("DCSC"),  are parties to a letter of intent,
dated as of  December  19,  1996,  as amended as of the date  hereof  (the "DCSC
Letter of Intent"),  relating to an asset  purchase  agreement to be negotiated,
executed and delivered by the parties (the "DCSC Acquisition  Agreement"),  with
respect to the acquisition (the "DCSC Acquisition") by American of substantially
all of the  property  and assets  and the  communications  tower and  management
business of DCSC (collectively, the "DCSC Business"); and

         WHEREAS,  American and DCSC have, simultaneously executed and delivered
a Note Purchase  Agreement,  substantially  in the form of this  Agreement  (the
"DCSC Note  Agreement"),  pursuant to which DCSC will issue up to Seven  Hundred
Fifty Thousand Dollars ($750,000) in aggregate principal amount of notes of like
tenor to the Notes (the "DCSC Notes") and additional  compensation  certificates
of like tenor to the Additional Compensation  Certificates (the "DCSC Additional
Compensation Certificates");

         NOW,  THEREFORE,  for and in consideration of the premises,  the mutual
covenants and agreements herein contained, and other valuable consideration, the
receipt and  adequacy  whereof  are hereby  acknowledged,  the  parties  hereto,
intending to be legally bound, do hereby covenant and agree as follows:

         1.  Issue and Sale of Securities.

         1.1  Description  of  Securities.  The Company has duly  authorized the
issue and sale, on the terms hereinafter  provided, of the Note. As used herein,
the term  "Notes"  shall  mean the Note  together  with  any  notes  issued  and
delivered  in  exchange  or  substitution  therefor or for any other Notes or on
transfer of the Initial Note or any other Notes as herein  provided and the term
"Note" shall mean any of the Notes.  The Notes shall be in or  substantially  in
the form set forth in Exhibit A hereto. Each Note shall be dated the date of its
issue,  shall mature on June 30, 2000,  shall bear interest from the date of its
issue, at an annual rate equal to the Prime Rate on the unpaid principal

                                                        

<PAGE>



balance thereof,  compounded on the last day of each calendar month,  commencing
January 31,  1997,  while such Note is  outstanding,  and  payable at  maturity,
including by way of  acceleration  or otherwise,  and interest at the rate of 2%
per annum in  excess  of what  would  otherwise  have  been paid on any  overdue
principal and, to the extent legally enforceable, any overdue interest. Interest
on the  Notes  shall be  computed  on the basis of a 360-day  year.  Subject  to
Section  8.1,  the  outstanding  principal  amount of the Notes shall be paid in
accordance  with the provisions of Section 6.1. The term "Prime Rate" shall mean
the rate,  from time to time,  published  in the Wall  Street  Journal  and each
change in the Prime Rate shall effect a simultaneous  change in the minimum rate
of interest payable on the Notes.

         The Company has duly authorized the issuance,  on the terms hereinafter
provided,  of certificates  representing rights to additional  compensation (the
"Additional  Compensation  Certificates")  as determined in accordance  with the
provisions of the Additional  Compensation  Certificates.  The term  "Additional
Compensation  Certificates" shall mean any Additional Compensation  Certificates
issued and delivered in exchange or substitution therefor or on transfer thereof
as therein provided;  and the term "Additional  Compensation  Certificate" shall
mean  any  of  the   Additional   Compensation   Certificates.   The  Additional
Compensation  Certificates shall be in or substantially in the form set forth in
Exhibit B hereto.  Each Additional  Compensation  Certificate shall be dated the
date of its issue.

         1.2  Purchase  and  Sale.  On  the  basis  of the  representations  and
warranties  and on the terms and  subject  to the  conditions  set forth in this
Agreement,  the Company  agrees to issue and deliver to  American,  and American
agrees to acquire from the  Company,  the Note and the  Additional  Compensation
Certificates  at a purchase  price (the  "Purchase  Price") equal to 100% of the
principal amount of the Note,  except that the loans evidenced by the Note shall
be advanced  not more  frequently  than once a month,  on such date (an "Advance
Date") not less than three (3) business days  subsequent to delivery to American
by the Company of a request for an advance (an "Advance Request"), in accordance
with the following schedule:

                     Month                            Cumulative Advances

                  March 1997                               $350,000
                  April 1997                               $500,000
                  May 1997                                 $600,000
                  June 1997                                $650,000

Notwithstanding  the  foregoing,  American  shall not be  obligated  to make any
advance  (a) upon the  occurrence  and during  the  continuance  of a  Potential
Default  or Event of  Default  or (b) if the Notes  shall  have  become  due and
payable  pursuant to the  provisions  of Section  6.1.  The Company and American
agree that the Purchase Price shall be allocable to the Notes and the Additional
Compensation  Certificates  in  accordance  with their  respective  fair  market
values.

         1.3 Closing.  The Closing (the  "Closing")  shall be held at such time,
place and manner not later than  January 31,  1997 as the  Company and  American
shall  agree  (the date on which the  Closing  occurs  being  herein  called the
"Closing Date").  At the Closing,  the Company will deliver to American the Note
in the principal amount of $650,000 registered in the name of American, in

                                       -2-

<PAGE>



exchange for the initial advance requested by the Company in accordance with the
provisions  of  Section  1.2 by  American  in the form of bank  wire  transfers,
evidenced by an advice of bank credit issued by a member of the Federal  Reserve
System,  in the amount of such requested  advance.  Such wire transfers shall be
made to such account as the Company shall have  designated by notice to American
at least one (1) business day in advance of the Closing.

         Upon the request of  American,  the Company  shall  prepare and file an
application  with the California  Department of  Corporations an application for
qualification of the Additional Compensation  Certificates and/or the Notes (the
"California  Application")  under the  provisions of Chapter 2 of the California
Corporate Securities Law of 1968, as amended (the "California  Securities Law").
The Company shall thereafter use its best efforts to secure the qualification of
the Additional  Compensation  Certificates and/or the Notes under the California
Securities  Law. The Company and American shall each bear fifty percent (50%) of
any and all costs and expenses of the  preparation  and filing of the California
Application,  and securing the issuance of the qualification,  including without
limitation  filing and processing  fees,  attorneys fees,  accountants  fees and
other costs and expenses.

         Promptly  after  the  effective  date  of  the   qualification  of  the
Additional  Compensation  Certificates and/or the Notes, and in any event within
three (3) days after the effective date of such qualification,  the Company will
issue and deliver to American one Additional Compensation Certificate registered
in the name of American, subject to the Company's and American's compliance with
such  terms  and   requirements  as  may  be  imposed  by  the  Commissioner  of
Corporations as a condition of the qualification.

         In the event that such  qualification  does not become effective within
six (6) weeks (or such longer  period as American  may, in its sole  discretion,
agree) after the filing of the California  Application,  American shall have the
right to  contribute  the Notes in exchange  for  interests in one or more joint
ventures  agreements with the Company with respect to the communication sites in
which the proceeds of the loans  theretofore made or to be made pursuant to this
Agreement are used.  Such joint ventures shall be on terms and conditions  which
afford  to  American  and the  Company  (i)  substantially  equivalent  economic
benefits  and  obligations  to those  which  they would  have  received  had the
Additional  Compensation  Certificates and/or the Notes been qualified under the
California  Securities  Law and  issued  and  delivered  to  American,  and (ii)
substantially  equivalent  rights and  obligations as contemplated in the Notes,
the  Additional  Compensation  Certificates  and this Agreement and otherwise on
terms and conditions reasonably acceptable to the Company and American.

         Subsequent advances by American shall be made by American in accordance
with the  provisions  of Section 1.2 upon  receipt by American of (a) an Advance
Request  accompanied  by  an  officer's  certificate  to  the  effect  that  the
representations and warranties  contained in Section 2 shall be true and correct
in all  material  respects on and as of the Advance  Date;  no Material  Adverse
Change  affecting the Company  shall be pending or, to the Company's  knowledge,
threatened;  no event  which  constitutes  an Event of  Default  or a  Potential
Default  shall have  occurred  and be  continuing  on the Advance  Date,  (b) an
officer's  certificate  specifying in reasonable detail the proposed use of such
advance,  and (c) American's  having  approved such use, such approval not to be
unreasonably withheld, delayed or conditioned.

                                       -3-

<PAGE>



         2.  Representations  and Warranties of Company.  The Company represents
and warrants that:

         2.1  Organization and Business; Power and Authority.

                  (a) The Company (i) is a corporation  duly organized,  validly
         existing and in good  standing  under the laws of its  jurisdiction  of
         organization, and (ii) has all requisite power and authority (corporate
         and other) to own or hold under lease its properties and to conduct its
         business as now conducted and as presently proposed to be conducted.

                  (b) The Company has adequate  power and  authority  (corporate
         and other) and all necessary  franchises,  permits,  licenses and other
         rights  and  privileges  to allow it to  execute  and  deliver,  and to
         perform  its  obligations   under,  this  Agreement,   the  Notes,  the
         Additional  Compensation  Certificates and each other Related Agreement
         to  which  it is a  party,  and to  issue  and  sell  the  Note and the
         Additional  Compensation  Certificates.  The  execution,  delivery  and
         performance of this Agreement,  the Notes, the Additional  Compensation
         Certificates  and each of the  other  Related  Agreements  to which the
         Company is a party have been duly authorized by all requisite corporate
         action,  including  that, if required,  of the Company's  stockholders.
         This Agreement constitutes,  and the Notes, the Additional Compensation
         Certificates  and each other  Related  Agreement to which it is a party
         when executed and delivered by the Company will  constitute,  valid and
         binding  obligations  of the Company,  enforceable  in accordance  with
         their respective terms, except as (i) the enforceability thereof may be
         limited  by  bankruptcy,  insolvency  or  similar  laws  affecting  the
         enforcement of creditors' rights generally and (ii) the availability of
         equitable  remedies may be limited by equitable  principles  of general
         applicability.  The  holders  from  time to time of the  Notes  and the
         Additional Compensation Certificates will be entitled to the rights and
         benefits set forth in the Notes, the Additional Stock  Certificates and
         this Agreement.

                  (c) The  Company  does  not own any  voting  shares  or  other
         equitable  interest in any Person,  however  organized and however such
         interest  may be  denominated  or  evidenced,  which  owns  or has  any
         interest  in the assets and  property  or business of any of the Diablo
         Assets or the Diablo  Business,  except as set forth in the  Disclosure
         Schedule.

                  (d) The Company has adequate  power and  authority  (corporate
         and other) under the laws of its  jurisdiction of organization  and all
         necessary franchises, permits, licenses and other rights and privileges
         to allow it to execute and  deliver,  and to perform  its  obligations,
         under, the Letter of Intent and the execution, delivery and performance
         of the  Letter of  Intent  has been duly  authorized  by all  requisite
         corporate action on the part of the Company.

                  (e) Except as set forth in the  Disclosure  Schedule,  neither
         the execution and delivery of this Agreement, the Notes, the Additional
         Compensation  Certificates  or any of the other  Related  Agreements to
         which it is a party, nor the offer,  issue,  sale or delivery of any or
         all of the Notes, nor the  consummation of the  transactions  herein or
         therein  contemplated,  nor compliance  with the terms,  conditions and
         provisions hereof or thereof by the Company:

                           (i) will  conflict  with,  or  result  in a breach or
                  violation  of or  constitute  a  default  in the  performance,
                  observance or fulfillment of any obligation, covenant or

                                       -4-

<PAGE>



                  condition  contained  in,  or  constitute,   or  but  for  any
                  requirement  of giving of  notice or  passage  of time or both
                  would  constitute,  a default  or an event of  default  by the
                  Company  under,  any  Applicable  Law  or,  to  the  Company's
                  knowledge,    any    Private    Authorization,    Governmental
                  Authorization or Material Contractual Obligation;

                           (ii) will, to the Company's knowledge,  result in the
                  creation or imposition of any Lien upon any of the  properties
                  of the Company; or

                           (iii) will, to the Company's  knowledge,  require any
                  approval or action of, or filing with, any  Authority,  except
                  as set forth in the Disclosure Schedule.

         2.2  Business;   Financial  Information.  The  Company  has  heretofore
furnished to American  copies of the financial  statements of the Company listed
in  the  Disclosure  Schedule  (the  "Financial   Statements").   The  Financial
Statements  have been prepared in  accordance  with CAAP applied on a consistent
basis throughout the periods covered  thereby,  except as otherwise noted in the
Disclosure Schedule, are true, complete and correct in all material respects, do
not contain any untrue  statement of a material fact or omit to state a material
fact  required by CAAP to be stated  therein or  necessary  in order to make the
statements  contained  therein not misleading,  and fairly present the financial
condition of the Company and results of operations  and cash flow of the Company
on the bases therein  stated,  as of the respective  dates thereof,  and for the
respective periods covered thereby subject,  in the case of unaudited  financial
statements,  to normal year-end audit  adjustments  and accruals.  Except as set
forth in the most recent  balance  sheet  constituting  a part of the  Financial
Statements, the Company does not have any Indebtedness for Money Borrowed. As of
the Closing Date,  after giving effect to all of the  transactions  contemplated
hereby, the Company will be Solvent.

         2.3 Changes in  Condition.  Since the date of the most  recent  balance
sheet constituting a part of the Financial  Statements (the "Most Recent Balance
Sheet"), except as contemplated by this Agreement and the Letter of Intent or as
otherwise  specifically set forth in the Disclosure Schedule, (i) there has been
no Material Adverse Change of the Company.  There is, as of the date hereof,  no
fact known to the Company  which,  in the  reasonable  judgment of the  Company,
Materially  Adversely  Affects,  or might,  in the  reasonable  judgment  of the
Company (so far as the Company can now foresee),  Materially  Adversely  Affect,
the Company.

         2.4 Title to  Properties;  Leases.  The Company has good and marketable
title  in  fee  simple  to all  real  property  owned  by it and  has  good  and
merchantable  title to all other assets,  tangible and intangible,  owned in fee
simple  by the  Company  in the  Diablo  Business  (collectively,  with the Real
Property,  the  "Diablo  Assets"),  in all  cases  free and  clear of all  Liens
securing  Indebtedness  for Money Borrowed,  except such as are set forth in the
Disclosure Schedule. All buildings,  structures, towers, antennae,  improvements
and fixtures  comprising a part of the Diablo Assets are in good and technically
sound operating condition, have no latent structural mechanical or other defects
of material significance,  are reasonably suited for the purposes for which they
are being used and each has  adequate  rights of  ingress  and  egress,  utility
service  for  telephone  and  electric  for  the  conduct  of the  business  and
operations  of the  Diablo  Business  as  presently  conducted,  except for such
exceptions  which,  individually or in the aggregate,  would not have a Material
Adverse  Effect on the  Company,  except as  otherwise  set forth in the Company
Disclosure Schedule.

                                       -5-

<PAGE>



         Each  lease or other  occupancy  or other  agreement  under  which  the
Company  holds any of the Diablo Assets has been duly  authorized,  executed and
delivered  by the Company and is a legal,  valid and binding  obligation  of the
Company, enforceable in accordance with its terms. The Company, to the Company's
knowledge, has a valid leasehold interest in and enjoys peaceful and undisturbed
possession  under all such  leases.  All of such leases  are,  to the  Company's
knowledge, valid and subsisting and in full force and effect; and the Company is
not in default in the  performance,  observance or fulfillment in any respect of
any obligation,  covenant or condition  contained in any such lease,  except for
such  exceptions  which,  individually  or in the  aggregate,  would  not have a
Material Adverse Effect on the Company.

         2.5 Compliance with Governmental  Authorizations and Applicable Law. As
of the date  hereof,  there are no  judgments,  decrees or orders  issued by any
Authority  presently  outstanding  and  unsatisfied  against  the  Company.  The
Disclosure Schedule contains a brief description of

                  (a) all Legal  Actions or other Claims which are pending or in
         which the Company or its business, operations or properties, or, to the
         Company's knowledge, any of its officers,  directors or stockholders in
         connection  therewith,  is engaged,  or which  involves  the  business,
         operations or properties of the Company or, to the Company's knowledge,
         which are  threatened  or  contemplated  against,  the  Company  or its
         business,  operations or properties, or any of such officers, directors
         or  stockholders,   in  connection   therewith,   in  all  cases  which
         individually or in the aggregate could, if adversely determined, have a
         Materially Adverse Effect on the Company; and

                  (b) each Governmental Authorization which, if not obtained and
         maintained, could singly or in the aggregate, have any Material Adverse
         Effect on the Company (a "Material Governmental Authorization").

         No Governmental  Authorization is the subject of any pending or, to the
Company's  knowledge,  threatened  attack,  revocation or termination except for
such attacks,  revocations  or  terminations  as do not and will not have in the
aggregate any Material  Adverse Effect on the Company.  Neither the Company nor,
to the Company's  knowledge,  any of its officers,  directors or stockholders in
connection with the business, operations and properties of the Company, is

                  (i)      in  breach or  violation  or,  or in  default  in the
                           performance of, or

                  (ii)     charged  with any such  breach  or  violation  of, or
                           default under, or

                  (iii)    to the Company's knowledge,  threatened with or under
                           investigation  with  respect  to any such  breach  or
                           violation of, or default under,

any Governmental Authorization or any Applicable Law, and no Event exists or has
occurred,  which constitutes,  or but for any requirement of giving of notice or
passage  of time or both  would  constitute,  such a breach or  violation  of or
default  under  any  such  other  Material  Governmental  Authorization  or  any
Applicable Law,  except for such defaults,  breaches or violations as do not and
will not have in the aggregate any Material Adverse Effect on the Company.


                                       -6-

<PAGE>



         2.6 Related  Transactions.  The Disclosure  Schedule sets forth a fair,
complete and accurate in all material  respects  description of any  Contractual
Obligation  or  transaction  relating to any of the Diablo  Assets or the Diablo
Business between the Company and any of its officers, directors or stockholders,
or any  Affiliate  of any  thereof  (other  than for  services  as, or loans and
advances in the ordinary  course of business  to, any  thereof),  now  existing,
including without  limitation any providing for the furnishing of services to or
by,  providing for rental of property,  real,  personal or mixed, to or from, or
providing  for the  lending  or  borrowing  of  money  to or  from or  otherwise
requiring  payments to or from,  any such officer,  director or  stockholder  or
Affiliate,  except  for such as (a) will not  survive  the  consummation  of the
Acquisition or (b) are on terms at least as favorable to the Company as would be
obtained with Persons who are not Affiliated with the Company.

         2.7 Tax Matters.  The Company  has, at all times during its  existence,
been and is taxable as a Subchapter S  corporation  for federal and state income
Tax  purposes.  To the  Company's  knowledge,  (a)  all  Tax  Returns  which  in
accordance  with  Applicable Law are required to be filed by or on behalf of the
Company have been filed and all Taxes which have become due and payable pursuant
to  said  returns  and  all  estimated  Taxes  due and  payable  and  all  other
governmental  charges  and  assessments  due and  payable by or on behalf of the
Company have been paid,  (b) such returns have been prepared in accordance  with
all  Applicable  Laws, and (c) all Taxes which the Company is required by law to
withhold and collect have been duly withheld and  collected,  and have been paid
over,  in a timely  manner,  to the  proper  Authorities  to the  extent due and
payable, except as otherwise set forth in the Disclosure Schedule..

         2.8 Employment Arrangements. The Company is not now and during the past
five  years  has  not  been  subject  to or  involved  in or,  to the  Company's
knowledge,  threatened  with any union  elections,  petitions  therefor or other
organizational  activities,  relating to any of the Diablo  Assets or the Diablo
Business, except as described in the Disclosure Schedule. Except as described in
the Disclosure Schedule, none of the employees of the Company involved in any of
the Diablo Assets or the Diablo  Business is  represented  by any labor union or
other employee collective bargaining  organization or is a party to any labor or
other  collective  bargaining  agreement,  and there are no pending  grievances,
disputes  or  controversies  with any  union or any other  organization  of such
employees,  or threats of strikes,  work  stoppages  or any pending  demands for
collective  bargaining  by any  union  or  organization,  or,  to the  Company's
knowledge, any active organizing or recruiting of such employees with respect to
becoming  members  of any  union  or other  employee  or  collective  bargaining
organization.

         2.9  Ordinary  Course of  Business.  With respect to each of the Diablo
Assets and the Diablo  Business,  the  Company  from the end of its Most  Recent
Fiscal Year to the date  hereof,  and until the Closing  Date,  except as may be
described on the  Disclosure  Schedule or as may be required or permitted by the
terms of this Agreement or the Letter of Intent:

                  (a) has  operated,  and will  continue to operate,  the Diablo
         Business in the normal,  usual and customary manner in the ordinary and
         regular course of business;

                  (b) has not sold or  otherwise  disposed of, and will not sell
         or otherwise  dispose of or contract to sell or  otherwise  dispose of,
         any of the  properties  or  assets of any of the  Diablo  Assets or the
         Diablo  Business,  other  than  nonmaterial  amounts of  machinery  and
         equipment

                                       -7-

<PAGE>



         sold or otherwise disposed of in the ordinary course of business and no
         longer  needed in the  operation or business or replaced with assets of
         like kind or better kind and quality;

                  (c) except in each case in the ordinary  course of business of
         each of the Diablo Assets and the Diablo Business,

                           (i)  has  not   incurred   and  will  not  incur  any
                  obligations or liabilities (fixed, contingent or other);

                           (ii) has not  entered  and will  not  enter  into any
                  commitments; and

                           (iii) has not sold or transferred,  and will not sell
                  or  transfer,  any  tangible  asset or  canceled or cancel any
                  debts or claims;

                  (d) has not made and will not make any  additions  to property
         or  any  purchases  of  machinery  or  equipment,   except  for  normal
         maintenance and replacements;

                  (e) has not discharged or satisfied, and will not discharge or
         satisfy,  any Lien or paid or pay any obligation or liability (absolute
         or contingent)  other than current  liabilities  or  obligations  under
         contracts  then  existing or  thereafter  entered  into in the ordinary
         course of business,  and commitments under leases existing on that date
         or incurred since that date in the ordinary course of business;

                  (f) has not  placed  and will not place,  or  permitted  to be
         placed or permit to be placed,  any Lien on any of the Diablo Assets or
         the Diablo Business,  and has not  Transferred,  and will not Transfer,
         any of the Diablo Assets or the Diablo Business;

                  (g) has not  committed  or  suffered  to  exist,  and will not
         commit or suffer to exist, any Act of Bankruptcy;

                  (h) has not increased  and will not increase the  compensation
         payable  or to  become  payable  to  any of  its  officers,  employees,
         advisers, consultants, salesmen or agents involved in any of the Diablo
         Assets or the Diablo  Business,  has not and will not otherwise  alter,
         modify or change in any material  respect the terms of their employment
         or  engagement,  and has not  entered  and  will  not  enter  into  new
         employment  arrangements  with any of the foregoing,  other than in the
         ordinary  course of  business of the Diablo  Business  and on terms and
         conditions consistent with prior practices;

                  (i) has not suffered any material damage,  destruction or loss
         (whether or not covered by insurance) or any  acquisition  or taking of
         property by any Authority;

                  (j)  has not  waived,  and  will  not  waive,  any  rights  of
         substantial value without fair and adequate consideration;

                  (k)  has not experienced any work stoppage;


                                       -8-

<PAGE>



                  (l) has not  amended,  and will  not  amend,  in any  material
         respect,  has not terminated or entered into, and will not terminate or
         enter into, or become (or permit any of its property to be) bound by or
         subject   to   any   lease,   Governmental    Authorization,    Private
         Authorization,  Material Agreement,  Employment  Arrangement or Plan or
         any Contractual Obligation or transaction with any Affiliate;

                  (m) has not  amended  or  terminated  and  will  not  amend or
         terminate  (unless  replaced),  and will keep in full  force and effect
         including  without  limitation  renewing  to the  extent the same would
         otherwise expire or terminate,  insurance policies and coverage meeting
         the standards of Section 7.5;

                  (n) has not done any act or failed to do any act, and will not
         do any act or fail to do any act,  if such act or  failure to act might
         result in the expiration, revocation, suspension or modification of any
         of its Governmental Authorizations or Material Private Authorizations;

                  (o) has not issued, sold or purchased or agreed to issue, sell
         or  purchase  and will not issue,  sell or  purchase or agree to issue,
         sell or purchase,  any capital stock or any  Convertible  Securities or
         Option Securities;

                  (p) has not declared,  made or paid or agreed to declare, make
         or pay, and will not have declared,  made or paid or agreed to declare,
         make or pay, any Distribution; and

                  (q) has not entered into,  and will not enter into,  any other
         transaction or series of related  transactions which individually or in
         the  aggregate  is Material  to any of the Diablo  Assets or the Diablo
         Business.

         The  Company  will notify  American  of any and all Events  which would
require any material change to be made in the Disclosure  Schedule insofar as it
relates  to it or  which  could  cause  or  result  in any  material  breach  or
inaccuracy of the Company's  representations  and warranties  including  without
limitation those set forth in this Section or which could materially  impair the
likelihood  that all of the conditions  specified in Section 4 will be satisfied
on or prior to the Closing Date.

         2.10  Private  Sale.  The Company has not,  directly or  indirectly  or
through  anyone acting on its behalf,  offered any of the Notes,  the Additional
Compensation  Certificates  or any similar  securities for sale to, or solicited
any offers to buy any thereof  from,  or otherwise  approached  or negotiated in
respect thereof with, any Person or Persons other than American, and the Company
agrees that neither it nor any agent on its behalf will offer to sell any of the
foregoing  securities,  or solicit any offers to buy any  thereof,  or otherwise
approach  or  negotiate  with any Person in respect  thereto,  or take any other
action,  so as to  bring  the  issuance  and  sale  of any of the  Notes  or the
Additional  Compensation  Certificates under the registration  provisions of the
Securities Act.

         2.11  Disclosure.  To the Company's  knowledge,  neither the Disclosure
Schedule nor any other document,  certificate or statement furnished to American
by or behalf of the company in  connection  with the  transactions  contemplated
hereby  contains  any untrue  statement  of a material  fact or omits to state a
material fact required to be stated  therein or necessary to make the statements
therein not misleading.

                                       -9-

<PAGE>



         2.12 Use of Proceeds. The Company shall use the proceeds of the sale of
the Note and the Additional  Compensation  Certificates to American hereunder to
complete the development of new communication sites and capital improvements to,
but not  personnel  costs,  maintenance  or other expense items of, its existing
communication  sites. At the election of the Company,  such proceeds may also be
used to replenish  funds used for such expenses  incurred  subsequent to October
31, 1996.

         2.13  Material  Agreements  and Private  Authorizations.  Except as set
forth on the Disclosure Schedule:

                  (a) The Company has  obtained all Private  Authorizations  and
         Material  Agreements which are necessary for the ownership by it of the
         properties and assets  constituting a part of the Diablo Assets and the
         conduct  of the  Diablo  Business  as  now  conducted  or as  presently
         proposed to be  conducted or which,  if not  obtained  and  maintained,
         could, individually or in the aggregate, have a Material Adverse Effect
         on the Company;

                  (b) As of the date hereof, all of such Material Agreements are
         valid, binding and legally enforceable  obligations of the Company and,
         to the  knowledge  of the  Company,  the other party  thereto,  and the
         Company is validly and  lawfully  operating  the business of the Diablo
         Assets and the Diablo Business and owning or using the related property
         under each of such Material Agreements;

                  (c)  No  such  Private  Authorization  is the  subject  of any
         pending or, to the Company's knowledge,  threatened attack,  revocation
         or termination; and

                  (d) As of the date  hereof,  the Company has duly  complied in
         all respects with all of the terms and conditions of each such Material
         Agreement  and  each  such  Private  Authorization  and has not done or
         performed,  or failed to do or perform (and there is no pending, or, to
         the Company's knowledge,  threatened, Claim that the Company has not so
         complied,  done and  performed or fail to do and perform) any act which
         would  invalidate  or provide  grounds for the other  party  thereto to
         terminate  (with  or  without  notice,  passage  of  time or  both)  or
         materially impair its rights or benefits of, or materially increase the
         costs to, the Company, under any of such Material Agreements or Private
         Authorizations,  except,  in all  cases,  for  such  exceptions  which,
         individually  or in the  aggregate,  would not have a Material  Adverse
         Effect on the Company.

         2.14 Employee  Retirement  Income Security Act of 1974. The Company has
not at any  time  during  the  past  five  years  made  and  is not  making  any
contribution  to any Plans and is not bound by any Plan  relating  to any of its
employees  involved in the ownership and  operations of any of the Diablo Assets
or the Diablo Business,  except as set forth in the Disclosure  Schedule.  As to
all such Plans and except as listed in the Disclosure  Schedule,  all such Plans
comply  and have been  administered  in form and in  operation  in all  material
respects with all Applicable Laws. The Company is not and never has been a party
to any Multiemployer Plan or made contributions to any such Plan.

         2.15  Authorized  and  Outstanding  Capital Stock . The  authorized and
outstanding  capital  stock of the  Company  is as set  forth in the  Disclosure
Schedule. All of such outstanding capital

                                      -10-

<PAGE>



stock  has  been  duly  authorized  and  validly  issued,   is  fully  paid  and
nonassessable and is not subject to any preemptive or similar rights.  Except as
set forth in the Disclosure  Schedule,  (i) there is neither outstanding nor has
the Company  agreed to grant or issue any shares of capital  stock or any Option
Security or  Convertible  Security  and (ii) the Company is not a party to or is
not bound by any agreement,  put or commitment pursuant to which it is obligated
to  purchase,  redeem or  otherwise  acquire any shares of capital  stock or any
Option Security or Convertible Security.

         2.16 Inapplicability of Specified Statutes.  The Company is not, to its
knowledge, a "holding company", or a "subsidiary company" or an "affiliate" of a
"holding  company",  as such terms are  defined in the  Public  Utility  Holding
Company  Act of 1935,  as  amended,  or an  "investment  company"  or a  company
"controlled"  by or acting on behalf of an "investment  company",  as defined in
the Investment Company Act of 1940, as amended, or a "carrier" or a person which
is in control of a "carrier", as defined in sections 10102 or 11301 of Title 49,
U.S.C.  The Company is not engaged in the business of  extending  credit for the
purpose of  purchasing  or  carrying  any  margin  stock  within the  meaning of
Regulations G and U of the Board of Governors of the Federal Reserve System.

         3.  Representations,  Warranties  and  Covenants of American.  American
represents and warrants that:

         3.1  Organization and Business; Power and Authority.

         (a) American (i) is a corporation duly organized,  validly existing and
in good  standing  under  the laws of the  state of  Delaware,  and (ii) has all
requisite  power and authority  (corporate and other) to own or hold under lease
its  properties  and to conduct its business as now  conducted  and as presently
proposed to be conducted.

         (b) American has adequate power and authority (corporate and other) and
all necessary franchises,  permits,  licenses and other rights and privileges to
allow it to execute and  deliver,  and to perform its  obligations  under,  this
Agreement  and each  other  Related  Agreement  to which it is a party;  and the
execution,  delivery and  performance  of this  Agreement and each other Related
Agreement  to which it is a party  have been duly  authorized  by all  requisite
corporate action. This Agreement  constitutes,  and each other Related Agreement
to which it is a party, when executed and delivered by American will constitute,
valid and binding obligations of American,  enforceable in accordance with their
respective  terms,  except as (i) the  enforceability  thereof may be limited by
bankruptcy,  insolvency or similar laws affecting the  enforcement of creditors'
rights generally and (ii) the availability of equitable  remedies may be limited
by equitable principles of general ap plicability.

         (c) Neither the execution and delivery of this  Agreement or any of the
other  Related  Agreement to which it is a party,  nor the  consummation  of the
transactions  herein or therein  contemplated,  nor  compliance  with the terms,
conditions and provisions hereof or thereof by American:

                  (i) will conflict  with, or result in a breach or violation of
         or constitute a default in the  performance,  observance or fulfillment
         of any obligation, covenant or condition

                                      -11-

<PAGE>



         contained in, or  constitute,  or but for any  requirement of giving of
         notice or  passage of time or both  would  constitute,  a default or an
         event of  default  by  American  under,  any  Applicable  Law,  Private
         Authorization, Governmental Authorization or Contractual Obligation, or

                  (ii) will  require any  approval or action of, or filing with,
         any Authority, except as United States and state securities,  antitrust
         and communications laws may apply.

         3.2  Investment Representation.

         (a) American is an "accredited investor" within the meaning of Rule 501
promulgated  under the Securities Act and has been furnished with and had access
to all  information,  financial  and  other,  and  has  the  opportunity  to ask
questions  of the  management  of the  Company  with  respect to the Company and
American's proposed investment therein.

         (b) American is  acquiring  the Notes and the  Additional  Compensation
Certificates  to be purchased by it for its own account for  investment  with no
present intention of distributing or reselling the same, subject,  nevertheless,
to its right,  subject  to the  provisions  of  Section  5.7 of the Notes and of
Section  2(d) of the  Additional  Compensation  Certificates,  to dispose of the
Notes and the Additional  Compensation  Certificates  or any part thereof in its
sole discretion; provided, however, that notwithstanding the foregoing, American
may pledge any or all of the Notes and the Additional Compensation  Certificates
to any bona fide lender to American.  American  understands  that the Company is
not  and  will  not be  required  to file a  registration  statement  under  the
Securities Act in connection with any sale, transfer or other disposition of the
Notes or the Additional Compensation Certificates.

         3.3 Covenant Regarding Transfer.  American covenants and agrees that it
will not sell, assign,  transfer or otherwise dispose of any of the Notes or the
Additional Compensation Certificates in violation of the Securities Act.

         4. Conditions of Closing.  American's  obligation to purchase the Notes
and the Additional  Compensation  Certificates shall be subject to compliance by
the Company with its agreements herein  contained,  to the truth and accuracy in
all material respects of the certificates to be furnished to it pursuant to this
Section,  the truth and accuracy in all material respects of the representations
and  warranties  made by the  Company  herein,  and to the  condition  that  all
instruments  and  corporate  and  legal  matters  incident  to the  transactions
contemplated by this Agreement shall be reasonably  satisfactory in form,  scope
and  substance to American and its counsel,  and American and its counsel  shall
have received all information and copies of all documents,  including records of
corporate  proceedings,  which  it or its  counsel  may  reasonably  request  in
connection  therewith,  such  documents  where  requested or  appropriate  to be
certified  by  proper  corporate  or  governmental   authorities,   and  to  the
satisfaction on the Closing Date of the following further conditions:

         4.1 Company's Officer's  Certificate.  Subject to the provisions of the
Letter of Intent, (a) the representations and warranties  contained in Section 2
shall be true and  correct in all  material  respects  on and as of the  Closing
Date; (b) no Material  Adverse Change affecting the Company shall be pending or,
to the Company's knowledge,  threatened; and (c) no event which if the Notes had
been outstanding immediately prior to the Closing Date would constitute an Event
of Default or a

                                      -12-

<PAGE>



Potential  Default  shall have  occurred and be  continuing on the Closing Date.
American shall have received on the Closing Date a certificate dated the Closing
Date to such effect,  and to the effect that each of the conditions set forth in
this  Section  has  been  satisfied  in  all  material  respects,  signed  by an
authorized executive officer of the Company.

         4.2 Company's Secretary's Certificate.  A certificate,  dated as of the
Closing  Date,  executed by the Company's  secretary:  (i)  certifying  that the
resolutions, as attached to such certificate,  were duly adopted by the Board of
Directors  of the  Company,  authorizing  and  approving  the  execution of this
Agreement by the Company and the  consummation of the  transaction  contemplated
hereby  and that such  resolutions  remain in full  force and  effect;  and (ii)
providing,  as attachments  thereto, a certificate of good standing certified by
an appropriate California state official as of a date not more than fifteen (15)
days before the Closing  Date and by the  Company's  secretary as of the Closing
Date, and a copy of the Company's  Articles of  Incorporation  and By-Laws as in
effect on the date  thereof,  certified  by the  Company's  secretary  as of the
Closing Date.

         4.3 Opinion of Company Counsel.  American shall have received favorable
opinions,  dated the Closing Date and reasonably satisfactory in scope, form and
substance  to it and its  counsel,  from  counsel  for the  Company,  (i) to the
effects stated in Sections  2.1(a),  2.1(b),  2.1(d) (limited to corporate power
and authority),  2.1(e) (to such counsel's knowledge), and 2.16, and (ii) to the
effect  that the  offer,  issue,  sale  and  delivery  of the  Notes  under  the
circumstances contemplated by this Agreement constitute transactions exempt from
the registration  provisions of the Securities Act, and neither the registration
thereunder  of the Notes or the  Additional  Compensation  Certificates  nor the
qualification  of this  Agreement  under the  Trust  Indenture  Act of 1939,  as
amended to date, is required.

         4.4  Legality;  Governmental  and Other  Authorizations.  Except as set
forth on the Disclosure Schedule,  the purchase of and payment for the Notes and
the Additional  Compensation  Certificates shall not be prohibited by any law or
governmental order or regulation  applicable to American,  and shall not subject
American  to any  penalty,  tax,  liability  or  other  onerous  condition.  All
necessary consents, approvals,  licenses, permits, orders and authorizations of,
or registration,  declaration or filing with, any Authority or any other Person,
with respect to the transactions contemplated hereby shall have been obtained or
made and shall be in full force and effect.

         5.  Payment and Exchange of Notes; Lost Notes.

         5.1  Payments.  Any other  provision of this  Agreement or of the Notes
notwithstanding,

                  (a) interest,  principal and any premium to be paid in respect
         of any  Note  held by  American  or its  nominee  shall be paid by wire
         transfer of  immediately  available  funds to such accounts as may from
         time to time be  designated  in writing by  American,  or in such other
         reasonable  manner, or at such other address,  as may from time to time
         be designated in writing by American by notice given in accordance with
         the provisions of this Agreement;

                  (b)  interest,  principal  and any  premium  to be paid to any
         subsequent Holder of Record that is an Institutional  Investor shall be
         paid by wire transfer (or such other reasonable  manner as requested in
         writing by such Holder of Record) of immediately

                                      -13-

<PAGE>



         available  funds to such Holder of Record at such address in the United
         States of America as may from time to time be  designated in writing to
         the Company by such Holder of Record by notice given in accordance with
         the provisions of this Agreement; and

                  (c)  interest,  principal  and any  premium  to be paid to any
         other Holder of Record shall be paid by mailing a check (in the case of
         interest)  and  certified  or bank  cashier's  check  (in  the  case of
         principal)  to such  Holder of Record,  at the  address of such  Holder
         shown on the register  maintained  pursuant to the  provisions  of this
         Agreement, or such other address in the United States of America as may
         from time to time be  designated  in  writing  to the  Company  by such
         Holder of Record by notice given in accordance  with the  provisions of
         this Agreement.

         Interest,  principal  and any premium to be paid in respect of any Note
shall be paid without any presentment or notation of payment,  and the amount of
principal  so paid on any Note shall be  regarded  as having  been  retired  and
canceled  at the time of  payment.  Each  Holder of  Record  of any Note  shall,
however, at any time during its regular business hours on any day when a payment
of principal is due, permit the Company at the office of the Holder of Record of
such Note to make  appropriate  notation on such Note of the amount of principal
which  has been paid  thereon,  if the  Company  at least  fifteen  (15) days in
advance shall have requested in writing permission to make such notation. Before
the  transfer of any Note,  the Holder of Record  thereof  shall make a notation
thereon  of the  date to which  interest  has  been  paid  and of all  principal
payments  theretofore  made thereon,  and shall in writing notify the Company of
the name and address of the transferee,  but  notwithstanding the giving of such
notice,  such transferee shall not be considered a Holder of Record of such Note
until it shall have complied  with the  provisions of Section 5.4. Any Note with
respect to which  interest,  principal and any premium has been fully paid shall
be marked paid in full and  surrendered  to the Company and shall be retired and
canceled.

         5.2 Exchange.  Subject to the  provisions of Section 5.7, the Holder of
Record  of any of the  Notes  may,  prior to  maturity  or  prepayment  thereof,
surrender  any Note  held by it for  exchange  at the  principal  office  of the
Company.  Within a reasonable time thereafter and without expense to such Holder
of Record, the Company shall, subject to the provisions of Section 5.7, issue in
exchange therefor another Note or Notes of the same issue for the same aggregate
principal  amount as the  unpaid  principal  amount of the Note so  surrendered,
having the same maturity and rate of interest,  containing  the same  provisions
and subject to the same terms and conditions as the Note so surrendered, in such
denomination or denominations as the Holder of Record making such exchange shall
request; provided,  however, that if the issue of more than one such new Note is
requested,  such new Notes shall be issued only in denominations of $10,000,  or
larger amounts which are integral multiples of $10,000,  except that one Note so
issued shall be for the amount by which the unpaid  principal amount of the Note
or Notes so surrendered exceeded an integral multiple of $10,000.  Each such new
Note shall be  payable to such  Person or  Persons,  or order,  as the Holder of
Record of such  surrendered  Note or Notes may  designate  in writing,  and such
exchange  or  transfer  shall be made in such a  manner  that no gain or loss of
principal or interest shall result  therefrom.  Any Note issued and delivered in
accordance  with the provisions of this Section shall be dated as of the date to
which interest has been paid on the Note exchanged therefor.  The Company agrees
that it will pay shipping and  insurance  charges from and to the main office of
any  Institutional  Investor  involved in any  exchange or transfer of a Note or
Notes held by it.

                                      -14-

<PAGE>



Notwithstanding the foregoing  provisions of this Section, the Company shall not
be required to issue and deliver any new Notes  pursuant to this Section  unless
it is  indemnified  against and held  harmless  from any United States and state
documentary stamp or similar excise taxes and any transfer taxes.

         5.3  Replacement  of Notes.  Upon  receipt by the  Company of  evidence
satisfactory  to it of the loss,  theft,  destruction or mutilation of any Note,
and (in case of loss, theft or destruction) of indemnity satisfactory to it, and
upon reimbursement to the Company of all reasonable expenses incidental thereto,
and upon surrender and cancellation of any Note, if mutilated,  the Company will
make and  deliver a new Note of like  tenor in lieu of such Note in a  principal
amount equal to the sum of the then unpaid  principal  amount of,  together with
accrued and unpaid interest on, such lost, stolen,  destroyed or mutilated Note.
Any Note made and  delivered in accordance  with the  provisions of this Section
shall be dated as of the date to which  interest has been paid on the Note lost,
stolen,  destroyed or mutilated  and shall  indicate  that it is being issued in
substitution  for,  but not in  payment  of,  the  lost,  stolen,  destroyed  or
mutilated  Note.  The  term  "outstanding"  when  used  in this  Agreement  with
reference to the Notes as of any  particular  time shall not include any Note in
lieu of  which a new  Note  has  been  made  and  delivered  by the  Company  in
accordance  with the provisions of this Section or any Note held by the Company.
Notwithstanding  any  provision to the contrary  herein or in the Notes,  if any
Note of which  any  Institutional  Investor  is the  holder  is lost,  stolen or
destroyed,  then  the  affidavit  of the  principal  financial  officer  of such
Institutional  Investor,  setting forth the  circumstances  with respect to such
loss, theft or destruction,  shall be accepted as satisfactory evidence thereof,
and no indemnity  shall be required as a condition to the execution and delivery
of a new Note or Notes  for a like  aggregate  principal  amount,  other  than a
written   agreement  by  such   Institutional   Investor,   in  form  reasonably
satisfactory to the Company, to indemnify the Company against loss on account of
the making of any  payment  in  respect  of any such lost or stolen  Note to any
Person legally entitled to such payment.

         5.4 Transfer Office and Record of Holders of Notes. The Company will at
all times  keep or cause to be kept,  at the  principal  office of the  Company,
appropriate records for the registration and transfer of the Notes,  identifying
the Holders of Record,  from time to time,  of the Notes,  and shall cause to be
recorded  therein the names and  addresses of the Holders of Record of the Notes
from time to time, and any and all transfers thereof;  provided,  however,  that
the Company  shall be required to record the transfer of a Note only if and when
a  subsequent  holder  shall have (a)  presented  such Note to the  Company  for
inspection,  properly  endorsed  or  assigned  and in order  for  transfer,  (b)
delivered to the Company a written  notice of its  acquisition of such Note, and
(c) designated in writing an address to which payments on and notices in respect
of such Notes shall be transmitted.

         5.5 Transfer of Notes.  Subject to the  provisions  of this  Agreement,
including  without  limitation  Section 5.7, any Note may be  transferred at the
principal office of the Company by surrender thereof for cancellation,  endorsed
or  accompanied  by  a  written  instrument  of  transfer,  in  form  reasonably
satisfactory  to the  Company,  duly  executed  by or on behalf of the Holder of
Record,  and  thereupon  the Company will issue and deliver,  in the name of the
transferee or transferees,  a new Note, for a like aggregate  principal  amount,
dated as of the date to which interest has been paid on the Note so transferred.


                                      -15-

<PAGE>



         5.6 Registered Owners of Notes. Except as provided in Section 5.1 (with
respect to places of payment  designated  by American or a Holder of Record) and
Section  10.4 (with  respect to notices to  nominees  designated  as such),  the
Company and all other Persons may treat the registered  holder,  as shown on the
records maintained  pursuant to Section 5.4, of any Note, for the time being, as
the owner thereof for the purposes of receiving  payment of the principal of and
premium,  if any, and interest on such Note and for all other purposes,  and the
Company  shall not be  affected  by any  notice or  knowledge  to the  contrary,
whether  payments on the Notes  shall be overdue or not;  and the  Company,  and
every  successive  registered  holder and  assignee  of a Note by  accepting  or
holding  the same,  shall be deemed to have  consented  to and  agreed  with the
provisions of this Section.

         5.7  Limitation  on  Transfer of Notes.  Anything in this  Section 5 or
elsewhere  in this  Agreement  to the  contrary  notwithstanding,  prior  to the
earlier of  September  30,  1997 or the  acceleration  of the Notes by  American
pursuant to the  provisions of Section 6.1, the Notes shall not be  transferable
by American (or any of its Affiliates) except (a) to an Affiliate of American or
(b) to one or more bona fide lenders to American or any of its Affiliates.

         6.  Payment Provisions.

         6.1 Required Payments. Subject to the provisions of Section 6.2(a), the
Notes shall be paid in their entirety, without premium but with interest accrued
and unpaid  thereon to the date of  payment,  upon the  earliest to occur of (a)
consummation  of the  Acquisition  (in which event the Company  may, in its sole
discretion,  elect  to  have  the  Notes  assumed  by  American  as part of such
transaction in which event the  consideration  to be delivered by American shall
be reduced by an amount  equal to the  principal  amount of the Notes so assumed
and  accrued and unpaid  interest  thereon to the date of  assumption),  (b) the
occurrence of the  Acquisition  Termination  Date,  and either (i) the demand by
American  for payment  thereof or (ii) the election of the Company to prepay the
Notes, in either case, in its sole discretion, and (c) June 30, 2000.

         6.2 Restriction on Optional Payments. The Company may prepay the Notes,
in whole but not in part, either:

                  (a)  in  the  event  of  the  occurrence  of  the  Acquisition
         Termination  Date, the Company may, in its sole  discretion,  elect, at
         any time within ninety (90) days of the  occurrence of the  Acquisition
         Termination  Date,  to prepay the  Notes,  at their  principal  amount,
         without  premium but with  interest  accrued and unpaid  thereon to the
         date of payment,  either in cash or pursuant to an agreement  customary
         in comparable  transactions  and  reasonably  satisfactory  to American
         relating to the purchase and sale of the DCSC Business,  free and clear
         of all Liens,  except as otherwise set forth in Exhibit B to the Letter
         of Intent.  Such  agreement  shall (i) provide for a purchase price for
         the DCSC  Business  equal to (A) the sum of  $4,200,000  and an  amount
         equal to the  amount of any  capital  improvements  made by DCSC or the
         Company  to the DCSC  Assets  since  October  31,  1996,  minus (B) the
         principal  amount of the Notes and the DCSC  Notes,  plus  accrued  and
         unpaid  interest  on the  Notes  and  the  DCSC  Notes  to the  date of
         consummation of such purchase and sale (which shall be on such date not
         earlier than  December 15, 1997 and not later than December 31, 1997 as
         American  and the Company may agree),  and (ii)  contain such terms and
         conditions as are customary in comparable  transactions  and reasonably
         satisfactory to the Company and American.

                                      -16-

<PAGE>




                  (b) except as provided  in Section  6.2(a),  for cash,  at any
         time after December 31, 1997, at their  principal  amount together with
         interest  accrued to the date of payment;  provided,  however,  that it
         shall be a  condition  of the  Company's  right  to  prepay  the  Notes
         pursuant to the provisions of this Section 6.2(b) that,  simultaneously
         with such  prepayment,  DCSC shall have  prepaid in their  entirety the
         DCSC Notes.

         6.3 Notice of Payment and Offers to Repurchase. Notice of each required
or optional  payment of Notes  pursuant to Section 6.1 or 6.2 and each  optional
offer to repurchase  pursuant to Section 6.5 shall be given not less than thirty
(30) nor more than  sixty  (60) days  before  the date of  payment  or  proposed
repurchase date, and all such notices shall be given by mailing by registered or
certified  mail to each  Holder of Record of Notes to be paid or  repurchased  a
notice of intention, or offer, to pay or repurchase,  which notice shall include
statements  specifying  (a) the date of the  intended  payment  or the  proposed
repurchase  date,  (b) the  provision of this  Agreement  pursuant to which such
payment or offer is being made, (c) the aggregate  principal amount of the Notes
to be paid,  or to which such offer to  repurchase  relates,  (d) the  principal
amount  of the Notes  registered  in the name of such  Holder to be paid,  or to
which such offer to repurchase relates, and (e) the premium, if any, and accrued
interest  to be paid in respect  of the  principal  amount so to be paid,  or to
which such offer to repurchase relates.

         6.4 Maturity; No Reissue. Notes or portions thereof to be paid pursuant
to any provision of this  Agreement  shall become due and payable on the payment
date,  together  with accrued  interest and premium,  if any, and from and after
such date  (unless the  Company  shall  default in paying the amounts  then due)
interest  thereon  shall  cease  to  accrue.  Any  Note  paid in full  shall  be
surrendered  to the Company and canceled and shall not be reissued,  and no Note
shall be issued in respect of any paid principal amount of any Note, and no such
paid Note or paid portion of a Note shall be considered to be "outstanding"  for
any purpose hereof.

         6.5  Purchase of Notes.  The Company  will not, and will not permit any
Subsidiary  to,  purchase  or  otherwise  acquire  any Note except (a) by way of
payment in accordance  with the provisions of the Notes and this  Agreement,  or
(b) pursuant to a repurchase  offer made by the Company pro rata and on the same
terms  to  each  Holder  of  Record  of  Notes  to be  repurchased  at the  time
outstanding,  pursuant to a notice  given in  accordance  with Section 6.3 which
notice  shall state  whether such offer may be accepted in part or only in full,
and shall  provide that any such ac ceptance  may be given by written  notice to
the Company in  accordance  with the  provisions  of this  Agreement at any time
prior to such  date,  not less than  thirty-five  (35) days from the date of the
notice of the Company's offer under this Section as shall be specified  therein.
Any Notes repurchased pursuant to this Section shall be canceled by the Company,
and shall not be reissued or deemed to be "outstanding"  for any purpose of this
Agreement.

         7. Special Covenants of Company. Without limiting any other covenant or
provision  hereof,  the Company  covenants and agrees that so long as any of the
Notes are outstanding,  it shall comply with,  perform and observe the following
covenants  and  provisions  and shall cause each  Subsidiary,  if any, to comply
with,  perform and observe  said  covenants  and  provisions  as are  applicable
thereto  (it being  understood,  in any  event,  that to the  extent  any of the
covenants of this Section refer to

                                      -17-

<PAGE>



consolidated  financial  information they shall apply to the Company only in the
event that the Company has no Subsidiaries).

         7.1 Payments. The Company will duly and punctually pay the principal of
and premium,  if any, and interest on the Notes in accordance  with the terms of
this Agreement and the Notes.

         7.2 Prompt  Payment of Taxes and  Indebtedness.  The Company will,  and
will  cause  each of its  Subsidiaries  to,  pay  promptly,  or cause to be paid
promptly,  all taxes,  assessments and other  governmental  charges or levies of
whatever nature imposed on it, or upon it or its income or profits,  or upon any
of its property,  real, personal or mixed;  provided,  however,  that unless and
until foreclosure,  distraint sale or other similar  proceedings shall have been
commenced, nothing herein shall require the Company or any Subsidiary to pay any
such tax,  assessment,  charge or levy so long as the validity  thereof shall be
currently contested in good faith by appropriate  proceedings and if the Company
or such Subsidiary shall have set aside on its books reserves deemed adequate by
the Company's  Independent  Accountants  with respect thereto in accordance with
CAAP,   consistently  with  the  Financial   Statements  delivered  to  American
hereunder. The Company will, and will cause each of its Subsidiaries to, (a) pay
or cause to be paid  when due all  payments  of  principal  of and  premium  and
interest on  Indebtedness  for Money  Borrowed and will not permit or suffer any
such Indebtedness for Money Borrowed to become or remain in default,  (b) pay or
cause to be paid when due all lawful claims for labor and rents,  and (c) pay or
cause to be paid in a manner consistent with prudent business practice all trade
payables and pay or cause to be paid when due all other  Indebtedness upon which
it is or becomes obligated, except, in each case, other than that referred to in
clause  (a),  to the  extent  payment  is  being  contested  in  good  faith  by
appropriate  proceedings  and if the Company or such  Subsidiary  shall have set
aside  on its  books  reserves  deemed  adequate  by the  Company's  Independent
Accountants with respect thereto in accordance with CAAP,  consistently with the
Financial  Statements   delivered  to  American  hereunder,   unless  and  until
foreclosure,  distraint  sale or  other  similar  proceedings  shall  have  been
commenced.

         7.3 Conduct of  Business.  Subject to the  provisions  of the Letter of
Intent and, if executed and delivered,  the Acquisition Agreement (so long as it
shall  remain in  effect),  the  Company  (a) will,  and will  cause each of its
Subsidiaries  to, continue to engage in the business of owning and operating the
Diablo Assets and conducting the Diablo  Business and (b) will do or cause to be
done all things reasonably  necessary to preserve,  renew and keep in full force
and effect  and in good  standing  its  corporate  existence  and its rights and
franchises necessary to conduct such business. Notwithstanding clause (b) of the
preceding  sentence,  the Company may merge or cause any Subsidiary to be merged
with or into the Company or another  Subsidiary,  or may cause any  Wholly-Owned
Subsidiary which is a Wholly-Owned Subsidiary of another Subsidiary to liquidate
and distribute its assets and liabilities to such latter Subsidiary.

         7.4  Maintenance  of Property and Leases.  Subject to the provisions of
the Letter of Intent and, if executed and delivered,  the Acquisition  Agreement
(so long as it shall remain in effect), the Company will, and will cause each of
its  Subsidiaries  to: (a) keep its assets and property  relating to each of the
Diablo  Assets  and the  Diablo  Business  in good  repair,  working  order  and
condition, and from time to time will make all repairs, renewals,  replacements,
additions  and  improvements  thereto so that its  business  may be properly and
advantageously  conducted at all times; and (b) comply in all material  respects
with the provisions of all leases of real or personal property relating

                                      -18-

<PAGE>



to each of the Diablo  Assets and the Diablo  Business to which it is a party or
under  which  it oc  cupies  or  uses  property  so as to  prevent  any  loss or
forfeiture  thereof or thereunder;  provided,  however,  that the Company or any
Subsidiary  may  cancel,  surrender  or modify any such lease if such  action is
deemed to be advantageous to the Company's or such Subsidiary's business.

         7.5  Maintenance of Insurance.  Subject to the provisions of the Letter
of Intent and, if executed and delivered,  the Acquisition Agreement (so long as
it shall remain in effect), the Company will, and will cause each Subsidiary to:
(a) keep its assets and property  relating to each of the Diablo  Assets and the
Diablo  Business which are of an insurable  character and which are  customarily
insured by companies of  established  reputation  engaged in the same or similar
business  similarly situated insured by financially sound and reputable insurers
against  loss or  damage by fire,  explosion  and  hazards  insured  against  by
extended coverage in amounts sufficient to prevent the Company or any Subsidiary
from  becoming  a  co-insurer;  and (b)  maintain  with  financially  sound  and
reputable  insurers  insurance  against other hazards and risks and liability to
persons and property, to the extent and in the manner customary for companies of
established  reputation  engaged  in the same or  similar  businesses  similarly
situated.

         7.6  Maintenance  of Accounts and Records.  The Company will,  and will
cause each of its  Subsidiaries  to,  keep true  records and books of account in
which full, true and correct  entries will be made of dealings and  transactions
in relation to the  ownership and operation of the Diablo Assets and the conduct
of the Diablo Business, in accordance with CAAP consistently applied,  except as
otherwise set forth in the Disclosure Schedule,  and shall prepare the financial
statements  required to be furnished  pursuant to Section 7.9. The Company will,
and  will  cause  each  Subsidiary  to,  apply  accounting   principles  in  the
preparation  of the financial  statements  of the Company and its  Subsidiaries,
which, in the judgment of the Company,  are in accordance with CAAP consistently
applied,  except that no notes shall be required with respect thereto and except
as otherwise set forth in the Disclosure  Schedule.  In the event of a change in
any method of accounting used by the Company or any Subsidiary that is permitted
by this  Agreement,  such  change  shall  not be deemed to result in an Event of
Default if, at the time of such change, an Event of Default had not occurred and
was not then continuing, based upon the former methods of accounting used by the
Company;  provided,  however,  that,  if,  after any such  change in  accounting
methods,  either the Company or American (or the holders of the Notes) determine
in good faith that any requirements of this Agreement are substantially  altered
as a result of such change,  the Company and American agree to negotiate in good
faith with respect to a change in such requirements.

         7.7 Compliance  With Laws. The Company will, and will cause each of its
Subsidiaries  to, comply with all  Applicable  Laws in respect of the conduct of
the Diablo  Business and the  ownership of the assets and property of the Diablo
Assets,  except  such as are being  contested  in good faith and except for such
noncompliances  as will not in the aggregate  have a Material  Adverse Effect on
the Company.

         7.8  Miscellaneous  Information.  From time to time upon  request,  the
Company  will  furnish  to each  Holder  of any of the  Notes  such  information
regarding the business, properties, financial condition and results of operation
of the  Company  and its  Subsidiaries  in such  detail  as may  reason  ably be
requested;   and  the  Company   covenants   and  agrees  that  any   authorized
representative of any such Holder shall have the right,  reasonably exercisable,
to visit and inspect any of the properties

                                      -19-

<PAGE>



of the  Company  or any of its  Subsidiaries,  to examine  and to discuss  their
affairs,  finances and accounts  (including  without  limitation  any letters of
comment with respect to audits,  letters to management or  confidential  reports
relating to financial  matters  submitted to the Company or its  Subsidiaries by
independent  public  accountants)  with, and be advised as to the same by, their
officers,  all at  such  reasonable  times  and  intervals  as such  Holder  may
reasonably request.

         7.9  Information  and Reports to Be Furnished  by Company.  The Company
will furnish to each Holder of any of the Notes:

                  (a) Financial  Statements.  The following financial statements
         relating  to  each  of the  Diablo  Assets  and  the  Diablo  Business,
         substantially in the form customarily prepared by the Company:

                           (i)  Quarterly  Reports.  In  duplicate  as  soon  as
                  available and, in any event, within forty-five (45) days after
                  the end of each quarter  (including the last) of the Company's
                  fiscal year, a balance sheet, and related statements of income
                  and retained earnings and cash flow for such period (including
                  year to date),  together with  comparative  figures as at such
                  date or for the same periods of the preceding year and for the
                  Company's  budget  for such  fiscal  year,  all in  reasonable
                  detail,  accompanied  by supporting  statements and schedules,
                  normally prepared by the Company in connection therewith,  and
                  accompanied  by a certificate  of the  principal  financial or
                  accounting  officer  of the  Company  (A)  stating  that  such
                  statements have been properly prepared in accordance with CAAP
                  and are true,  correct and complete in all  material  respects
                  and fairly  present the financial  condition of the Company at
                  and as of the dates thereof and the results of its  operations
                  for  the  periods  covered  thereby  subject  only  to  normal
                  non-material year-end accounting adjustments,  and (B) stating
                  that he has reviewed  this  Agreement  and has no knowledge of
                  any breach of or default under the  provisions of Section 7.10
                  through 7.15, both  inclusive,  or Section 7.17, or, if he has
                  such  knowledge,  specifying  such  breach or default  and the
                  nature  thereof and the period of  existence  thereof and what
                  action the  Company  has taken,  is taking or proposes to take
                  with respect thereto.

                           (ii)  Monthly  Reports.   In  duplicate  as  soon  as
                  available and, in any event, within forty-five (45) days after
                  the end of each month  (including  the last) of the  Company's
                  fiscal year, a balance sheet, and related statements of income
                  and retained earnings and cash flow for such period (including
                  year to date),  together with  comparative  figures as at such
                  date or for the same periods of the preceding year and for the
                  Company's  budget  for  such  fiscal  year,  all in  the  form
                  customarily prepared for management.

                           (iii)  Annual  Statements.  In  duplicate  as soon as
                  available  and,  in any event,  within one  hundred and twenty
                  (120) days after the end of each fiscal year of the Company, a
                  balance sheet,  and related  statements of income and retained
                  earnings   and  cash  flow  for  such  year,   together   with
                  comparative  figures as at the end of and for the  immediately
                  preceding  fiscal year and for the  Company's  budget for such
                  fiscal  year,  all  in  reasonable   detail,   accompanied  by
                  supporting statements and

                                      -20-

<PAGE>



                  schedules,  normally  prepared  by the  Company in  connection
                  therewith,  and  accompanied  by (A) a  letter  from a firm of
                  certified  public  accountants  to  the  effect  that  it  has
                  reviewed  (but  not  audited)  such  statements,   and  (B)  a
                  certificate of the principal  financial or accounting  officer
                  of the Company with respect to the matters set forth in clause
                  (B) of paragraph (i) of this subdivision.

                           (iv) Annual Budget. in duplicate as soon as available
                  and,  in any event,  on or prior to March 1 of each  year,  an
                  annual budget with respect to the Diablo Assets and the Diablo
                  Business  containing,  in reasonable detail,  information with
                  respect to the balance sheet,  statements of income and retain
                  earnings,  cash flow and Capital Expenditures for the calendar
                  year,  all in a form  substantially  similar  to  those of the
                  financial  statements required to be delivered pursuant to the
                  provisions of this Section 7.9(a); and, thereafter,  promptly,
                  from time to time  during the course of such year,  amendments
                  to such annual budget.

                           (v) Reports to Stockholders  or Others.  In duplicate
                  promptly upon the sending,  making  available or filing of the
                  same, copies of all proxy statements, registration statements,
                  prospectuses,   reports  and  financial  statements  that  the
                  Company shall send or make  available to its  stockholders  or
                  file with the Securities and Exchange  Commission or any stock
                  exchange upon which its capital stock may be listed.

                  (b) Notice of Litigation, Event of Default, Potential Default,
         etc. The Company will  promptly  give notice of any  litigation  or any
         administrative  proceeding to which it or any  Subsidiary may hereafter
         become a party which  involves a potential  liability to the Company or
         any  Subsidiary  of at least  $50,000,  or which may have any  Material
         Adverse Effect on the Company.  Forthwith upon any executive officer of
         the Company  obtaining  knowledge of any of the following,  the Company
         shall give to American  prompt  written notice of any Change in Control
         or proposed  Change in Control,  any Act of Bankruptcy and any Event or
         Default  or  Potential  Default,  specifying  the  nature and period of
         existence  of any such Event of Default or  Potential  Default and what
         action  the  Company  has  taken,  is taking or  proposes  to take with
         respect thereto.

         7.10 Liens.  The Company will not,  and will not permit any  Subsidiary
to, create or incur, directly or indirectly, or suffer to be created or incurred
or to exist (except in favor of the Company or a Wholly-Owned  Subsidiary),  any
Lien  upon any of the  assets or  property  of any of the  Diablo  Assets or the
Diablo Business other than the Permitted Liens.

         7.11  Distributions.  The  Company  will not,  and will not  permit any
Subsidiary  to,  declare,  order,  pay or  make,  directly  or  indirectly,  any
Distribution  (other  than  dividends  paid by a  Subsidiary  to a  Wholly-Owned
Subsidiary or the Company) or set apart any sum or property  therefor,  or agree
to do so, other than in cash or cash  equivalents and then only if, after giving
effect  thereto,  (a) the Company has cash or cash  equivalents of not less than
$500,000,  (b) no  Default  or Event  of  Default  shall  have  occurred  and be
continuing,  and (d) a maximum  of debt to  tangible  net worth of not more than
1.00 to 1.00. For purposes of this Section, "effective tangible net worth",

                                      -21-

<PAGE>



"tangible  net  worth",  "debt  coverage"  and  "debt"  shall  be  determine  in
accordance  with the  provisions of the Sanwa Loan Agreement as in effect on the
date hereof.

         7.12 Consolidation,  Merger and Acquisition.  Subject to the provisions
of the  Letter of  Intent  and,  if  executed  and  delivered,  the  Acquisition
Agreement (so long as it shall remain in effect), the Company will not, directly
or indirectly:

                  (a) voluntarily  liquidate,  dissolve or otherwise wind up its
         business; or

                  (b) permit any  Subsidiary  to merge or  consolidate  with any
         Person (other than the Company or a Wholly-Owned Subsidiary) unless (i)
         the  surviving or resulting  Person is a Subsidiary  which is organized
         under  the laws of a state  of the  United  States  of  America  or the
         District of Columbia,  and (ii) no condition or event shall exist prior
         to, as a result of or immediately after giving effect to such merger or
         consolidation  which  constitutes  an Event of Default  or a  Potential
         Default,  including without  limitation the provisions of paragraph (c)
         of this Section; or

                  (c) consolidate  with or merge into another Person (other than
         a  Wholly-Owned  Subsidiary) or permit another Person to consolidate or
         merge  into  it,  or  acquire  (x) all or any  substantial  part of the
         assets,  property or business  of, or (y) any assets that  constitute a
         division or operating unit of the business of, any other Person, unless
         such  assets,  property  or  business  are or is,  as the  case may be,
         consolidated  with the Company for  financial  reporting  purposes  and
         unless

                           (i)  the  Person  surviving  such   consolidation  or
                  merger, is either (A) the Company,  or (B) an Entity which (I)
                  is organized under the laws of a state of the United States of
                  America, or the District of Columbia, and (II) shall expressly
                  assume the obligations of the Company under this Agreement and
                  under the Notes to the same extent and with the same effect as
                  though such  surviving  Person were a party hereto and thereto
                  and  were  named  and  defined  as the  "Company"  herein  and
                  therein;

                           (ii) no condition  or event shall exist,  either as a
                  result  of,  or  immediately  after  giving  effect  to,  such
                  consolidation,  merger or  acquisition  which  constitutes  an
                  Event of Default or a Potential Default;

                           (iii) none of the rights,  privileges or  preferences
                  of any holder of the Notes would be adversely affected by such
                  consolidation, merger or acquisition; and

                           (iv) in the case of any such acquisition,  all of the
                  assets,  property and  business to be acquired,  to the extent
                  they  relate  to any  of  the  Diablo  Assets  or  the  Diablo
                  Business,  shall  have  been made  subject  to the Lien of the
                  Security Agreement on terms and conditions satisfactory to the
                  holders of the Notes.

         7.13  Prohibited  Transactions.  Except as set forth on the  Disclosure
Schedule and marked "Permitted  Affiliated  Transactions" or as otherwise agreed
upon by the holders of the Notes, the

                                      -22-

<PAGE>



Company  will not,  and will not permit any  Subsidiary  to,  permit to exist or
enter into any agreement or arrangement  relating to any of the Diablo Assets or
the Diablo  Business  whereby it engages in a  transaction  of any kind with any
Subsidiary (other than a Wholly-Owned  Subsidiary),  or with any other Affiliate
of the  Company  or any  Subsidiary  except  on terms no less  favorable  to the
Company  as  could  be  obtained  from  Persons  who are not  Affiliates  of the
Company..

         7.14  Compliance  with ERISA.  The Company will, and will cause each if
its Subsidiaries to, fulfill the obligations under the minimum funding standards
of ERISA and the Code with  respect to each Plan  relating  to any of the Diablo
Assets or the Diablo Business,  to the extent such minimum funding standards are
applicable,  and comply in all material  respects with the presently  applicable
provisions  of ERISA  and the  Code,  and will  not,  and  will not  permit  any
Subsidiary  to, incur any material  liability to the PBGC or any such Plan under
Title IV of ERISA.

         7.15 Indebtedness. The Company will not, and will not permit any of its
Subsidiaries  to,  create,  incur,  assume or suffer to exist any  Indebtedness,
except:

                  (a) Indebtedness pursuant to this Agreement;

                  (b) Indebtedness  (other than Indebtedness for Money Borrowed)
         arising in connection with the Permitted Liens;

                  (c)  Indebtedness  incurred in the ordinary course of business
         which does not represent Indebtedness for Money Borrowed;

                  (d)  Indebtedness  existing on the date of this  Agreement and
         set forth in the Disclosure Schedule; and

                  (e) Other  Indebtedness  for Money  Borrowed so long as, after
         giving effect  thereto and  concurrent  repayment of  Indebtedness  for
         Money Borrowed,  the aggregate  principal  amount of  Indebtedness  for
         Money  Borrowed  to be  outstanding  would  not  exceed  five (5) times
         Operating  Cash Flow for the most recent  twelve  months  ending on the
         calendar  quarter for which  financial  statements are required to have
         been delivered pursuant to the provisions of Section 7.9(a)(i), so long
         as after  giving  effect to such  Indebtedness  for Money  Borrowed  no
         Potential Default or Event of Default has occurred and is continuing.

         7.16 Operation of the Business. Subject to the provisions of the Letter
of Intent and, if executed and delivered,  the Acquisition Agreement (so long as
it shall remain in effect),  the Company and each of its  Subsidiaries  will own
and  operate the Diablo  Assets and  conduct the Diablo  Business in the normal,
usual and  customary  manner in the  ordinary  and regular  course of  business.
Without  limiting the generality of the foregoing,  subject to the provisions of
the Letter of Intent and, if executed and delivered,  the Acquisition  Agreement
(so long as it shall  remain in  effect),  the  Company  will not,  and will not
permit any Subsidiary to, take any of the following  actions with respect to the
Diablo Assets and the Diablo Business:

                  (a)  Transfer or agree to Transfer  any of the  properties  or
         assets constituting a part of the Diablo Assets or the Diablo Business,
         other than nonmaterial amounts of machinery and

                                      -23-

<PAGE>



         equipment  sold or  otherwise  disposed  of in the  ordinary  course of
         business and no longer  needed in the operation or business or replaced
         with assets of like kind or better kind and quality;

                  (b) with prior practices,  (i) incur any material  obligations
         or liabilities (fixed, contingent or other); (ii) make any additions to
         its property or any  purchases of  machinery or  equipment,  except for
         normal  maintenance  and  replacements;  (iii) or agents,  and will not
         otherwise alter,  modify or change in any material respect the terms of
         their employment or engagement,  and has not entered and will not enter
         into new employment arrangements; (iv) waive, any rights of substantial
         value  without  fair  and  adequate  consideration;  (v)  amend  in any
         material  respect,  terminate or enter into or become (or permit any of
         its  property  to be) bound by or subject  to any  Lease,  Governmental
         Authorization, Private Authorization, Employment Arrangement or Plan or
         any Contractual  Obligation  which could have a Material Adverse Effect
         on the  Company;  (vi) do any act or fail to do any act, if such act or
         failure to act might result in the expiration,  revocation,  suspension
         or modification of any of its Material  Governmental  Authorizations or
         Material  Private  Authorizations;  and  (vii)  enter  into,  any other
         transaction or series of related  transactions which individually or in
         the aggregate is Material to the Company; and

                  (c) waive any condition set forth therein to consummation  of,
         or otherwise amend,  modify or terminate,  any Material  Agreement,  or
         enter into any agreement or other  arrangement which would constitute a
         Material   Agreement,   except   for  such   waivers,   amendments   or
         modifications,  or such other  agreements or arrangements as do not and
         will not have in the  aggregate  any  Material  Adverse  Effect  on the
         Company.

         The Company  shall use  reasonable  business  efforts to  preserve  the
ownership,  operation,  management,  policies and personnel of the Diablo Assets
and the  Diablo  Business,  and  shall  not  alter  such  ownership,  operation,
management,  policies, or personnel in any manner that would, individually or in
the  aggregate,  have a Materially  Adverse  Effect on the Diablo  Assets or the
Diablo Business.

         7.17 Issue of Equity  Securities.  The Company will not issue, or agree
to issue,  any shares of capital stock or any  Convertible  Securities or Option
Securities, if such issuance would result in a Change of Control of the Company.

         8.  Defaults.

         8.1 Events of Default.  If one or more of the following  events (herein
termed "Events of Default") shall have occurred, that is to say:

                  (a) if the Company shall fail to make payment of the principal
         of or  premium,  if any,  or, for a period of five (5)  business  days,
         interest on any of the Notes when and as the same shall  become due and
         payable, whether at their stated maturity, on a date fixed for payment,
         by a notice of payment or offer to pay, by declaration or otherwise; or


                                      -24-

<PAGE>



                  (b) if any representation or warranty of the Company contained
         in this  Agreement,  or any statement or  certificate  furnished by the
         Company  in  connection  with the  issue or sale of any of the Notes or
         pursuant to any  provision  of this  Agreement,  shall have been false,
         incorrect  or  misleading  in any  material  respect  when  made  or so
         certified  to,  and such  representation  and  warranty  was either (i)
         willfully and  intentionally  made as such or (ii) not so willfully and
         intentionally made, but the defect giving rise to such false, incorrect
         or misleading  representation and warranty, to the ext curable, has not
         been cured within thirty (3) days of the Company obtaining knowledge of
         the defect and,  whether or not curable,  has,  together with any other
         such false,  incorrect or misleading  representations  and  warranties,
         resulted in a Material Adverse Change in the Company; or

                  (c) if the Company or any Subsidiary  shall fail to observe or
         perform any of the  covenants,  agreements or  provisions  contained in
         Sections 7.10 through 7.13, inclusive, 7.15, 7.16 and 7.18; or

                  (d) if the  Company  or any  Subsidiary  shall  fail  duly  to
         observe or perform any other covenant, agreement or provision contained
         in this Agreement, the Notes or any other Related Agreement, other than
         those  referred  to in  subdivisions  (a),  (b) or (c) above,  and such
         failure  shall have  continued  for a period of thirty  (30) days after
         written  notice  to the  Company  from the  holders  of a  majority  in
         interest of the Notes; or

                  (e) if  the  Company  or  any  Subsidiary  shall  default,  as
         principal  or as  guarantor  or other  surety,  (i) in any  payment  of
         principal of or premium,  if any, or interest on any  Indebtedness  for
         Money  Borrowed   (other  than  the  Notes),   or  any  purchase  money
         Indebtedness in excess of $100,000,  or (ii) with respect to any of the
         terms of any evidence of such Indebtedness or of any mortgage, security
         agreement,  indenture or other  agreement  relating  thereto,  and such
         default  shall  continue  for more than the  period  of grace,  if any,
         specified therein; or

                  (f) if one or more final judgments for the payment of money in
         excess  of  $150,000  shall be  rendered  against  the  Company  or any
         Subsidiary,  and  such  judgments  shall  not be  discharged  or  their
         discharge  shall  not have been  provided  for in  accordance  with its
         terms,  or a stay of  execution  thereof  shall not have been  procured
         within thirty (30) days from the date of the entry  thereof,  or within
         said  period of thirty (30) day period (or such  longer  period  during
         which  execution on such judgment shall have been stayed),  the Company
         or such  Subsidiary  shall not have filed an appeal  therefrom (or from
         the order,  decree or  process  upon  which or  pursuant  to which said
         judgment shall have been granted, passed or entered); or

                  (g) if the  Company  or any of its  Subsidiaries  shall,  as a
         debtor, be involved in or commit an Act of Bankruptcy; or

                  (h) if a Change in Control with  respect to the Company  shall
         be pending or shall have occurred; or


                                      -25-

<PAGE>



                  (i) if the  Company  or DCSC shall  enter  into an  agreement,
         whether or not legally binding,  with respect to a Third Party Transfer
         or a Third Party Transfer shall have occurred; or

                  (j) if any  Potential  Default  or Event of  Default  (each as
         defined  in  the  DCSC  Note  Agreement)  shall  have  occurred  and be
         continuing;

then,  except as set forth below in this  Section,  (I) in the case of any event
specified in subdivision (g) of this Section,  there shall automatically  become
forthwith  due and payable the unpaid  balance of all of the Notes,  and (II) in
each and every other case  specified in this Section,  the holders of a majority
in  principal  amount  of the  Notes at the time  outstanding  may by  notice in
writing  to the  Company  declare to be  forthwith  due and  payable  the unpaid
balance of all of the Notes,  together  in any such case with  interest  accrued
thereon,  and  thereupon  such balance  shall become so due and payable  without
presentation,  protest or further demand or notice of any kind, all of which are
hereby expressly  waived by the Company;  the Holders of a majority in principal
amount of the Notes of the time  outstanding may, without being required to give
any notice  (except as may be required by law),  exercise their rights under the
Security  Agreement whether or not they elect to accelerate  payment as provided
herein;  and/or in  addition  thereto  each  Holder may  proceed to protect  and
enforce  its rights by suit in equity,  action at law and/or  other  appropriate
proceeding,  either  for  specific  performance  of any  covenant  or  provision
contained in the Notes or herein or in aid of the exercise of any power  granted
in the Notes or herein or in lieu thereof.  Notwithstanding any provision to the
contrary in this Agreement, no events other than those described in this Section
8.1 shall  constitute an Event of Default  giving rise to the  consequences  set
forth in clause (I) or (II) of the preceding sentence;  provided,  however, that
should the Event of Default giving rise to the  consequences set forth in clause
(I) or (II) of the preceding  sentence  occur prior to the  consummation  of the
transactions  contemplated by the Acquisition Agreement, the Company may, at its
sole  discretion,  elect to pay the  Notes at their  principal  amount,  without
premium,  but  including  interest  accrued  and  unpaid  thereon to the date of
payment  pursuant to an  Agreement  customary  in  comparable  transactions  and
reasonably  satisfactory  to American  relating to the  purchase and sale of the
DCSC  business,  free and clear of all liens,  except as otherwise  set forth in
Exhibit B to the Letter of Intent. Such agreement shall be on the same terms and
conditions as are set forth in Section 6.2 of this Agreement.

         8.2 Notice to the Holders.  If and  whenever  the Company  shall become
aware of the existence of any Event which constitutes,  or which after giving of
notice or passage of time or both would  constitute,  an Event of  Default,  the
Company shall  forthwith  give notice to each Holder of such  condition or event
and what  action the  Company  has  taken,  is taking or  proposes  to take with
respect thereto.  If any creditor of the Company shall take any action, of which
the  Company  shall  have  actual  knowledge,  in  respect  of any  Event  which
constitutes,  or which  after  giving  notice or  passage  of time or both would
constitute,  an Event of Default, then and in any such event, and whether or not
the Company  shall have given a notice under the first  sentence of this Section
with  respect to the  condition  or event to which such  demand or action  shall
relate,  the  Company  shall  forthwith  give to  each  Holder  written  notice,
specifying  such  action  and the  nature of such  alleged  default  or Event of
Default and what  actions  the Company has taken,  is taking or proposes to take
with respect thereto.


                                      -26-

<PAGE>



         8.3  Annulment  of Defaults.  This Section is subject to the  condition
that,  if at any time after the  principal of any or all of the Notes shall have
been declared and become due and payable,  and before any judgment or decree for
the payment of the moneys so due,  or any part  thereof,  shall be entered,  all
arrears of interest upon all the Notes and all other sums payable upon the Notes
(except the  principal of and  interest on such Notes which by such  declaration
shall have become  payable) shall have been duly paid, and every other Potential
Default  and Event of Default  shall  have been made good or cured,  then and in
every such case the  Holders of a majority in  principal  amount of the Notes at
the time  outstanding may, by written  instrument or instruments  filed with the
Company, rescind and annul such declaration and its consequences.  No rescission
or  annulment  under  this Sec tion  shall  extend to or affect  any  subsequent
Potential Default or Event of Default or impair any right consequent thereon.

         8.4 Waiver by Company;  Severability of Remedies. To the fullest extent
permitted by applicable law, the Company hereby agrees to waive, and does hereby
absolutely and irrevocably  waive and relinquish,  (a) the benefit and advantage
of any valuation, stay, appraisal,  extension or redemption laws now existing or
which may hereafter exist, which, but for this provision, might be applicable to
any sale made under the  judgment,  order or decree of any court,  or otherwise,
based on the Notes or any claim for interest on the Notes; (b) all presentments,
demands  for  performance  and notices of  nonperformance  (except to the extent
required  by the  provisions  hereof);  (c) any  requirements  of  diligence  or
promptness on the part of any Holder,  as a holder of Notes,  in the enforcement
of its rights under the provisions of this  Agreement or the Notes;  and (d) any
and all notices of every kind and description  which may be required to be given
by any  statute  or rule of law and any  defense of any kind which it may now or
hereafter have with respect to its liability  under this Agreement or the Notes.
In the event any remedy or other  provision of this  Section is not  enforceable
for any reason, no other remedy or provision shall be affected thereby,  and all
such  other  remedies  and  provisions  shall be given  full force and effect in
accordance with their terms.

         8.5 No Waiver of Rights.  No course of dealing  between  the Company or
any Subsidiary and any Holder, as a holder of Notes, and no delay or omission on
the  part of any  Holder  in  exercising  any  rights  under  the  Notes or this
Agreement,  shall operate as a waiver of the rights of such Holder,  as a holder
of Notes. No failure to insist upon the strict provisions of any covenant, term,
condition  or  other  provision  of this  Agreement  or any of the  Notes  or to
exercise any right or remedy thereunder shall constitute a waiver by any Holder,
as a holder of Notes, of any such covenant,  term,  condition or other provision
or of any  Potential  Default or Event of Default in connection  therewith.  The
waiver of any  covenant,  term,  condition or other  provision  hereof or of the
Notes or Potential  Default or Event of Default  hereunder on one occasion shall
not be  construed  as a bar to or a waiver of any right or remedy on any  future
occasion and shall not affect or alter this Agreement or the Notes except to the
extent  specifically  provided  in the  instruments  setting  forth such  waiver
delivered  under Section 10.5,  and every  covenant,  term,  condition and other
provision of this Agreement and the Notes shall, in such event, continue in full
force and effect.

         8.6 Costs and  Expenses of  Collection.  Subject to the  provisions  of
Section  10.2,  the Company  covenants and agrees that if default be made in any
payment  of  principal  of or  interest  on the  Notes,  it will,  to the extent
permitted under applicable law, pay to each Holder,  as a holder of Notes,  such
further  amount  as shall be  sufficient  to cover the  costs  and  expenses  of
collection,

                                      -27-

<PAGE>



including  reasonable  compensation  to the  attorneys  of each  Holder  for all
services rendered in that connection.

         8.7 Remedies  Cumulative.  No remedy herein conferred upon each Holder,
as a holder of Notes or  otherwise,  is  intended to be  exclusive  of any other
remedy,  and each and every remedy shall be cumulative  and shall be in addition
to every other remedy given hereunder or now or hereafter  existing at law or in
equity or by statute or otherwise.

         9. Definitions.  As used herein, unless the context otherwise requires,
the following terms have the following respective meanings. Terms defined in the
singular  shall have a  comparable  meaning  when used in the  plural,  and vice
versa,  and the  reference to any gender shall be deemed to include all genders.
Unless otherwise defined or the context  otherwise  clearly requires,  terms for
which meanings are provided in this Agreement shall have such meanings when used
in  the  Disclosure  Schedule  and  in  each  instrument,  notice,  certificate,
communication,  opinion or other  document  executed  or required to be executed
pursuant hereto or thereto or otherwise  delivered,  from time to time, pursuant
hereto or thereto. If the Company has any Subsidiaries all financial terms shall
be deemed to apply to the Company and its Consolidated Subsidiaries,  determined
in  accordance  with CAAP  consistently  applied with the  Financial  Statements
delivered to American hereunder.

         The term  "Acquisition"  is  defined  in the first  whereas  paragraph,
preceding Section 1.

         The term  "Acquisition  Agreement"  is  defined  in the  first  whereas
paragraph, preceding Section 1, and shall include all amendments,  modifications
and supplements thereto.

         The term  "Acquisition  Termination Date" shall mean the earlier of (a)
the failure of American  and the  Company to enter into a  definitive  agreement
with respect to the Acquisition,  regardless of the reason therefor,  within the
time permitted by the Letter of Intent or (b) the date on which the  Acquisition
Agreement, if executed and delivered, is terminated,  whether in accordance with
its terms or by American or the Company, and whether with or without cause.

         The term "Act of  Bankruptcy"  shall mean,  when used with reference to
any Person, any of the following events or occurrences:

                  (a) its  admitting in writing its  inability,  or being unable
         under  Applicable  Law,  or its  failing  generally,  to pay its  debts
         generally as they become due, or

                  (b) its filing a petition, answer or consent seeking relief as
         a debtor or otherwise  commencing a voluntary case under the Bankruptcy
         Code as from time to time in effect, or its authorizing, by appropriate
         proceedings of its board of directors or other governing body, any such
         petition, answer, consent or commencement of such a voluntary case; or

                  (c) the filing  against it or all or any  substantial  part of
         its  property of a petition com mencing an  involuntary  case under the
         Bankruptcy  Code which shall  remain  undismissed  for a period of more
         than thirty (30) days or which is consented to by such Person or any

                                      -28-

<PAGE>



         order or decree  approving  relief  adverse to such  Person  thereunder
         shall remain unstayed and in effect for more than forty five (45) days;
         or

                  (d) its  commencement  of  proceedings  or filing a  petition,
         answer or consent  seeking relief as a debtor under any Applicable Law,
         other than the  Bankruptcy  Code, of any  jurisdiction  relating to the
         liquidation  or  reorganization  of debtors or to the  modification  or
         alteration  of  the  rights  of  creditors,  or  its  consenting  to or
         acquiescing  in such  relief  or its  admitting  or  acquiescing  in or
         failing promptly and in any event within thirty (30) days of the filing
         thereof, in an appropriate manner, to deny the material  allegations of
         any  petition  seeking  such  relief,  any  such  involuntary  petition
         remaining undismissed for more than thirty (30) days or an order in any
         involuntary proceeding adverse to such Person remaining unstayed and in
         effect for more than forty-five (45) days; or

                  (e) the entry of an order or decree  (whether or not final) by
         a court of  competent  jurisdiction  (i)  finding it to be  bankrupt or
         insolvent,  (ii) ordering or approving its liquidation,  dissolution or
         winding up, or  reorganization or any modification or alteration of the
         rights of its creditors,  or any  composition or readjustment of debts,
         (iii)  assuming   custody  of,  or  appointing  a  receiver,   trustee,
         sequestrator,  conservator,  assignee,  custodian,  liquidator,  fiscal
         agent or similar official for, such Person or all or a substantial part
         of its property and any such order or decree  shall  continue  unstayed
         and in effect for a period of forty-five (45) days; or

                  (f) its  convening a meeting of  creditors  for the purpose of
         consummating an out-of-court  arrangement,  or making an assignment for
         the benefit of, or entering  into a  composition,  extension or similar
         arrangement  with,  its  creditors  in respect of all or a  substantial
         portion of its debt; or

                  (g)  its  seeking  or  consenting  to or  acquiescing  in  the
         appointment  of  a  receiver,   trustee,   sequestrator,   conservator,
         liquidator,  fiscal agent or other custodian of itself or of all or any
         substantial part of its property; or

                  (h)  its winding-up, liquidation or dissolution; or

                  (i) its  authorization,  by appropriate action of its board of
         directors or other governing body, of any of the foregoing.

         The term "Additional  Compensation  Certificates" is defined in Section
1.1.

         The term "Affiliate",  when used with respect to any Person, shall mean
(i) any other Person at the time directly or indirectly controlling,  controlled
by or under direct or indirect  common control with such Person,  (ii) any other
Person of which  such  Person  at the time  owns,  or has the right to  acquire,
directly or indirectly  twenty percent (20%) or more on a consolidated  basis of
the equity or  beneficial  interest,  (iii) any other  Person  which at the time
owns, or has the right to acquire,  directly or indirectly  twenty percent (20%)
or more of the equity or beneficial  interest of such Person, (iv) any executive
officer or  director of such  Person,  or any Person of which such Person or any
executive  officer or director of such Person at the time owns, or has the right
to

                                      -29-

<PAGE>



acquire,  directly or indirectly,  twenty percent (20%) of more of the equity or
beneficial  interest,  and (v) when used with  respect to an  individual,  shall
include a spouse,  any ancestor or descendant,  or any other relative (by blood,
adoption or  marriage),  within the third  degree of such  individual.  A Person
shall be deemed to be  "controlled  by" any other  Person if such  other  Person
possesses, directly or indirectly, power to direct or cause the direction of the
management  or  policies  of such  Person or the  disposition  of its  assets or
property, whether by stock, equity or other ownership,  contract, arrangement or
understanding, or otherwise.

         The term "American" is defined in the preamble of this Agreement.

         The term "Applicable Law" shall mean any Law of any Authority,  whether
domestic  or  foreign,  including  without  limitation  all  federal  and  state
securities  Laws,  to which the Person in  question is subject or by which it or
any of its property is bound.

         The term "Authority" shall mean any governmental or  quasi-governmental
authority, whether executive, legislative, judicial, administrative or other, or
any  combination  thereof,  including  without  limitation  any federal,  state,
territorial,   county,   municipal  or  other   government  or  governmental  or
quasi-governmental agency, arbitrator, board, body, branch, bureau, central bank
or comparable  agency or entity,  commission,  corporation,  court,  department,
instrumentality,  master,  mediator,  panel, referee,  system or other political
unit or subdivision or other entity of any of the foregoing, whether domestic or
foreign.

         The term  "Bankruptcy  Code" shall mean 11 U.S.C.  ss. 101 et seq.,  as
from time to time in effect,  and any  successor  law, and any  reference to any
statutory provision shall be deemed to be a reference to any successor statutory
provision.

         The term  "CAAP""  shall  mean the  accounting  principles  used by the
Company in the preparation of the Financial  Statements and described in general
terms in the Disclosure Schedule, such principles applied on a consistent basis,
except  as  otherwise  heretofore  disclosed  in the  Disclosure  Schedule.  The
requirement  that  such  principles  be  consistently  applied  means  that  the
accounting principles in a current period are comparable in all material respect
to those applied in preceding period. All accounting and financial terms used in
this Agreement and the compliance with each covenant contained in this Agreement
that relates to financial  matters shall be  determined  in accordance  with the
accounting  principles  referred  to in  this  paragraph  (except  as  otherwise
specifically  noted in certain of the definitions  where the term GAAP is used).
In the event of a change in any method of accounting  used by the Company or any
of its Subsidiaries  that is permitted by this Agreement,  such change shall not
be deemed to result in an Event of Default  if, at the time of such  change,  an
Event of Default had not  occurred and was not then  continuing,  based upon the
former methods of accounting used by the Company;  provided,  however, that, if,
after any such  change in  accounting  methods,  either the  Company or American
determine  in  good  faith  that  any   requirements   of  this   Agreement  are
substantially altered as a result of such change, the Company and American agree
to negotiate in good faith with respect to a change in such requirements.

         The term "California Application" is defined in Section 1.1.

         The term "California Securities Law" is defined in Section 1.1.

                                      -30-

<PAGE>



         The  term  "Capital  Expenditures"  shall  mean,  with  respect  to the
Company,  for any period  during which the amount  thereof is to be  determined,
without  duplication,  the  amount of all  expenses  or  liabilities  (including
without   limitation   Capital  Lease   Obligations)   incurred  or  accrued  or
expenditures  made by the Company  directly or indirectly with respect to any of
the Diablo Assets or the Diablo Business  which, in accordance with CAAP,  would
be  treated  as a  capital  expenditure,  but  shall  not  include  interest  or
amortization,  depreciation  or the like with  respect to any  previous  Capital
Expenditure.

         The term  "Capitalized  Lease  Obligation"  shall  mean  the  principal
portion  of any lease  obligation  on which in  accordance  with  CAAP  would be
characterized as a capital lease.

         The term  "Change in Control"  shall mean,  with  respect to any Person
(the "Target"), any of the following:

                  (a) the acquisition,  directly or indirectly, in a transaction
         or series of  transactions,  including  without  limitation  by merger,
         consolidation  or other  reorganization,  by any  Person  (such term to
         include  anyone  deemed a  person  under  Section  13(d)(3)  under  the
         Securities Exchange Act) of beneficial ownership (within the meaning of
         Rule 13d-3 promulgated under the Securities Exchange Act) of a majority
         or more of the capital stock or voting stock of the Target,  other than
         by (i) the Target or any of its Subsidiaries, (ii) any employee benefit
         plan or related trust of the Target or any of its  Subsidiaries,  (iii)
         any  existing  stockholder  of the  Target  who as of the  date of this
         Agreement  owns more than ten percent  (10%) of the voting stock of the
         Target  or  any  of  his  Affiliates  or  (iv)  American  or any of its
         Affiliates (an "Acquiring Person"); or

                  (b) the sale or other  disposition  of all or any  substantial
         part of the assets of the Target or, in the case of the Company, any of
         the Diablo Assets or the Diablo Business,  in one transaction or series
         of related transactions,  including by way of merger,  consolidation or
         other reorganization, other than with or to American; or

                  (c) the  adoption  of a plan  relating to the  liquidation  or
         dissolution of the Target; or

                  (d)  the  Continuing   Directors   cease  for  any  reason  to
         constitute a majority of the directors of the Target then in office.

         For purposes of this  definition,  any transfer of any capital stock or
other equity  interest of an Entity that was formed for the purpose of acquiring
voting  stock of the Target  shall be deemed to be a transfer of such portion of
such  voting  stock as  corresponds  to the portion of the equity of such Entity
that has been so transferred.

         The term "Claims" shall mean,  with respect to any Person,  any and all
debts, liabilities, obligations, losses, damages, deficiencies,  assessments and
penalties of or against such Person, together with all Legal Actions, pending or
threatened,  claims and judgments of whatever kind and nature relating  thereto,
and all fees, costs,  expenses and disbursements  (including  without limitation
reasonable  attorneys' and other legal fees, costs and expenses) relating to any
of the foregoing.


                                      -31-

<PAGE>



         The terms "Closing" and "Closing Date" are defined in Section 1.3.

         The term "Code" shall mean the United States  Internal  Revenue Code of
1986,  and the rules  and  regulations  thereunder,  all as from time to time in
effect,  or any successor  law, rules or  regulations,  and any reference to any
statutory  or  regulatory  provision  shall be deemed to be a  reference  to any
successor statutory or regulatory provision.

         The term "Company" is defined in the preamble of this Agreement.

         The term  "Continuing  Director"  shall mean any member of the Board of
Directors  of a Person  who (a) is a member  of the Board of  Directors  of such
Person as of the date hereof or (b) was nominated for election by either (i) one
or more of  stockholders  of such Person who, as of the date of this  Agreement,
owned  more than ten  percent  (10%) of the voting  stock of such  Person (or an
Affiliate  of such  Person) or (ii) the Board of  Directors,  a majority of whom
were  directors as of the date of this Agreement or whose election or nomination
for election was previously approved by one or more of such stockholders or such
directors.

         The term  "Contractual  Obligation"  shall  mean,  with  respect to any
Person, any term, condition,  provision,  representation,  warranty,  agreement,
covenant,  undertaking,  commitment,  indemnity or other obligation set forth in
the  organizational  agreements  and other  documents of such Person or which is
outstanding or existing under any agreement, contract,  arrangement,  instrument
or  understanding  to which such  Person is a party or by which it or any of its
business  is  subject  or  properties  is bound  and  which,  in the case of the
Company, relates to any of the Diablo Assets or the Diablo Business.

         The term  "Convertible  Securities"  shall  mean,  with  respect to any
Person,  any  evidences of  indebtedness,  shares of any class of capital  stock
(other than common stock which is not convertible  into or exchangeable  for any
other  shares of any class of capital  stock) or other  securities  directly  or
indirectly  convertible into or exchangeable for shares of common stock, whether
or not the right to convert or exchange thereunder is immediately exercisable or
is conditioned  upon the passage of time, the  occurrence or  non-occurrence  or
existence or non-existence of some other Event, or both.

         The term "DCSC" is defined in the third  whereas  paragraph,  preceding
Section 1.

         The term "DCSC Additional Compensation  Certificates" is defined in the
fourth whereas paragraph, preceding Section 1.

         The term "DCSC  Business"  is defined in the third  whereas  paragraph,
preceding Section 1.

         The term  "DCSC  Letter of  Intent"  is  defined  in the third  whereas
paragraph, preceding Section 1.

         The term  "DCSC  Notes" is defined  in the  fourth  whereas  paragraph,
preceding Section 1.


                                      -32-

<PAGE>



         The term  "DCSC  Note  Agreement"  is  defined  in the  fourth  whereas
paragraph, preceding Section 1.

         The term "Diablo Assets" is defined in Section 2.4.

         The term "Diablo  Business" is defined in the first whereas  paragraph,
preceding Section 1.

         The term  "Disclosure  Schedule"  shall mean the  Disclosure  Schedule,
dated as of the date  hereof,  heretofore  delivered  by the Company to American
pursuant to the provisions of this Agreement.

         The term "Distribution",  when used in reference to capital stock shall
mean:  (i) the  declaration  or payment  of any  distribution  dividend  (except
distributions payable solely in common stock of the Company) on or in respect of
any class of capital  stock of the Company,  (ii) the  purchase,  redemption  or
other  retirement  of any shares of any class of capital stock of the Company or
any  Subsidiary  owned by a Person other than the Company or a  Subsidiary,  and
(iii) any other  distribution  on or in  respect  of any  shares of any class of
capital stock of the Company or any Subsidiary  owned by a Person other than the
Company or a Subsidiary.

         The term  "Employment  Arrangement"  shall  mean,  with  respect to the
Company, any employment,  consulting,  retainer,  severance or similar contract,
agreement,  plan,  arrangement  or policy  (exclusive of any which is terminable
within ninety (90) days without liability, penalty or payment of any kind of the
Company or any of its  Affiliates),  or  providing  for  severance,  termination
payments, insurance coverage (including any self-insured arrangements),  workers
compensation,   disability   benefits,   life,   health,   medical,   dental  or
hospitalization benefits,  supplemental unemployment benefits,  vacation or sick
leave  benefits,  pension or retirement  benefits or for deferred  compensation,
profit-sharing, bonuses, stock options, stock appreciation rights or other forms
of  incentive  compensation  or  post-retirement   insurance,   compensation  or
post-retirement   insurance,   compensation  or  benefits,   or  any  collective
bargaining  or other labor  agreement,  whether or not any of the  foregoing  is
subject to the provisions of ERISA, to the extent,  in each case, it relates to,
covers  or is for the  benefit  of any  employee  involved  in the  business  or
operations of any of the Diablo Assets or the Diablo Business.

         The term "ERISA" shall mean the Employee Retirement Income Security Act
of  1974,  as from  time  to time in  effect,  and any  successor  law,  and any
reference to any  statutory  provision  shall be deemed to be a reference to any
successor provision.

         The term  "Event"  shall mean the  occurrence  or existence of any act,
action, activity, circumstance, condition, event, fact, failure to act, incident
or practice, or any set or combination of any of the foregoing.

         The term "Event of Default" is defined in Section 8.1.

         The term "GAAP" shall mean means, except to the extent that a deviation
therefrom is expressly required by this Agreement,  such principles applied on a
consistent  basis,  (i) as set forth in  Opinions of the  Accounting  Principles
Board of the American Institute of Certified Public

                                      -33-

<PAGE>



Accountants ("AICPA") and/or in statements of the Financial Accounting Standards
Board that are applicable in the circumstances as of the date in question,  (ii)
when not inconsistent  with such opinions and statements,  as set forth in other
AICPA  publications  and guidelines  and/or (iii) that otherwise arise by custom
for the  particular  industry,  all as the same shall  exist on the date of this
Agreement.

         The  term  "Governmental  Authorizations"  shall  mean  all  approvals,
concessions,  consents, franchises,  licenses, permits, plans, registrations and
other authorizations of all Authorities relating, in the case of the Company, to
the  ownership or  operation  of the Diablo  Assets or the conduct of the Diablo
Business.

         The  terms  "Guaranty"  or  "Guaranteed"  shall  mean and  include  all
liabilities  and  obligations  under  or by  reason  of any  guarantee  or other
contingent  liability  (other than  endorsements  of negotiable  instruments for
collection or deposit in the ordinary  course of business),  direct or indirect,
with respect to any Indebtedness,  obligation or other liability  (collectively,
an "obligation") of another Person, through an agreement or otherwise.

         The terms "Holder" and "Holders"  shall mean the holders,  from time to
time, of any of the Notes.  The terms "Holder of Record" and "Holders of Record"
shall mean  Holders,  from time to time as shown on the  records of the  Company
maintained for such purpose.

         The term  "Indebtedness"  shall mean, with respect,  to any Person, (a)
all items,  except items of capital  stock,  partnership  interests,  surplus or
general  contingency  or deferred tax  reserves or any minority  interest in any
Subsidiary  to  the  extent  such  interest  is  treated  as  a  liability  with
indeterminate  term on the consolidated  balance sheet of such Person,  which in
accordance with GAAP would be included in determining total liabilities as shown
on the  liability  side of a balance sheet of such Person,  (b) all  obligations
secured by any Lien to which any  property or asset owned or held by such Person
is  subject,  whether  or not the  obligation  secured  thereby  shall have been
assumed,  and (c) to the extent not otherwise  included,  all Capitalized  Lease
Obligations  of such Person and all  obligations  of such Person with respect to
leases constituting part of a sale and lease back arrangement.

         The term  "Indebtedness for Money Borrowed" shall mean, with respect to
any Person,  (a) money borrowed,  (b) Indebtedness  represented by notes payable
and drafts accepted representing extensions of credit, all obligations evidenced
by bonds,  debentures,  notes or other similar  instruments,  the maximum amount
currently or at any time thereafter  available to be drawn under all outstanding
letters of credit issued for the account of such Person,  (c) Indebtedness  upon
which interest  charges are customarily  paid by such Person,  (d)  Indebtedness
(including  Capitalized Lease Obligations)  issued or assumed as full or partial
payment  for  property  or  services,  whether  or not any such  notes,  drafts,
obligations or Indebtedness  represent  Indebtedness for money borrowed, and (e)
Guarantees  of any of the  Indebtedness  described in items (a) through (d), but
shall not include (i) trade  payables,  (ii)  expenses  accrued in the  ordinary
course of business or (iii)  customer  advance  payments and  customer  deposits
received in the ordinary course of business.

         The  term  "Law"  shall  mean  any  action,   code,   consent   decree,
constitution, decree, directive, enactment, finding, guideline, law, injunction,
interpretation, judgment, order, ordinance, policy

                                      -34-

<PAGE>



statement, proclamation,  promulgation,  regulation,  requirement, rule, rule of
law,  rule of public  policy,  settlement  agreement,  statute,  or writ, or the
common  law,  or any  particular  section,  part or  provision  thereof,  or any
interpretation, directive, guideline or request (whether or not having the force
of law), of any Authority, including without limitation (a) the judicial systems
thereof,  or any particular section,  part or provision thereof,  and (b) any of
the  foregoing  relating  to  antitrust  or  prohibiting  other  anticompetitive
business   practices,   those   relating  to  employment   practices   (such  as
discrimination,  health and  safety),  and those  relating to minority  business
enterprises.

         The term "Legal  Action"  shall mean,  with respect to any Person,  any
litigation   or   legal   or   other   actions,   arbitrations,   counterclaims,
investigations,  proceedings, requests for material information or suits, at law
or in arbitration,  equity or admiralty  (whether or not purported to be brought
on behalf of such  Person)  affecting  such  Person  or any of its  business  or
property or assets.

         The term "Letter of Intent" is defined in the first whereas  paragraph,
preceding Section 1.

         The term "Lien" shall mean any  mortgage,  lien  (statutory  or other),
preference,  priority or other  security  agreement,  arrangement  or  interest,
hypothecation,  pledge or other deposit arrange ment, assignment,  charge, levy,
executory seizure, attachment, garnishment, encumbrance (including any easement,
exception,   variance,   reservation  or  limitation,   right  of  way,   zoning
restriction, building or use restriction, and the like), conditional sale, title
retention  or other  similar  arrangement,  device,  agreement  or  restriction,
preemptive or similar right,  any financing  lease involving  substantially  the
same  economic  effect as any of the  foregoing  and the filing of any financing
statement   under  the  Uniform   Commercial  Code  or  comparable  law  of  any
jurisdiction,  or any option,  equity,  claim or right of or obligation  to, any
other Person, of whatever kind and character.

         The  terms  "Material"  or  "Materiality"   for  the  purposes  of  the
Agreement,  shall,  unless  specifically  stated to the contrary,  be determined
without  regard to the fact that various  provisions  of the Agreement set forth
specific dollar amounts.

         The term  "Material  Adverse"  when used alone or in  conjunction  with
other terms (including without limitation "Affect," "Change" and "Effect") shall
mean,  with  respect to the  Company,  any Event or set of Events which could be
expected to (a) have any material  adverse effect upon or result in any material
adverse change in the validity or  enforceability  of the Agreement or any other
agreement,  instrument or other document  executed or required to be executed by
such Person pursuant hereto or thereto,  (b) materially and adversely affect the
business,  operations,  management,  properties or prospects,  or the condition,
financial  or other,  or results of  operation of such Person or such Person and
its Subsidiaries taken as a whole, which, in the case of the Company, shall mean
each of the Diablo Assets or the Diablo  Business,  (c)  materially  impair such
Person's  ability to fulfill its  obligations  under the terms of any agreement,
instrument or other document executed or required to be executed by such Person,
(d)  materially  and adversely  affect the aggregate  rights and remedies of any
party (other than such Person) under the Agreement or any agreement,  instrument
or other  document  executed  or  required  to be  executed  pursuant  hereto or
thereto, or (e) or, in the case of the Company, adversely affects its ability to
perform this Agreement,  the Notes or any of the other Related  Agreements or to
pay when due, in accordance with the terms of this Agreement and the Notes,  the
principal of and interest and premium, if any, on the Notes.


                                      -35-

<PAGE>



         The term "Material  Agreement" shall mean, with respect to the Company,
any  agreement,  contract,  arrangement,  undertaking,  commitment,  license  or
obligation  relating to the  ownership or operation of the Diablo  Assets or the
conduct of the Diablo  Business  which (a) was not entered  into in the ordinary
course of  business,  (b) was entered  into in the  ordinary  course of business
which  (i)  involves  the  purchase,  sale or lease of  goods  or  materials  or
performance of services  aggregating more than Fifty Thousand Dollars ($50,000),
(ii) extends for more than twelve (12)  months,  or (iii) is not  terminable  on
thirty (30) days' or less notice without penalty or other payment,  (c) involves
Indebtedness for Money Borrowed in excess of Fifty Thousand  Dollars  ($50,000),
or (d) would  account for more than one percent  (1%) of revenues or expenses of
the Diablo  Business  projected to be received or incurred by the Company during
the current fiscal year.  Without limiting the generality of the foregoing,  the
term "Material Agreement" shall include the Acquisition Agreement.

         The term "Most Recent Balance Sheet" is defined in Section 2.3.

         The  term  "NSR  Rate"  is  defined  in  the  Additional   Compensation
Certificates.

         The term "Net Site Revenue" is defined in the  Additional  Compensation
Certificates.

         The term "Notes" is defined in Section 1.1.

         The term "Operating Cash Flow" shall mean, with respect to the Company,
for any period: (a) net revenues of the Company and its Subsidiaries, determined
in accordance with CAAP, for such period, less (b) operating expenses (inclusive
of taxes and corporate overhead, selling and administrative expenses). Cash Flow
shall be  adjusted  on a  consistent  basis to reflect  the  acquisition,  sale,
exchange and  disposition  of property  (other than tangible  personal  property
disposed of in the ordinary  course of  business).  Cash Flow shall  exclude all
extraordinary  gains and  losses  and all gains and  losses  from  acquisitions,
sales,  exchanges  and  dispositions  of assets  (other than  tangible  personal
property disposed of in the ordinary course of business).

         The term  "Option  Securities"  shall  mean  all  rights,  options  and
warrants,  and calls or  commitments  evidencing  the right,  to subscribe  for,
purchase  or  otherwise  acquire  shares of any class of capital  stock or other
securities or Convertible Securities, whether or not the right to subscribe for,
purchase or otherwise acquire is immediately  exercisable or is conditioned upon
the passage of time,  the  occurrence  or  non-occurrence  or the  existence  or
non-existence of some other Event.

         The term "PBGC" shall mean the Pension Benefit Guaranty Corporation and
any Person succeeding to any or all of its functions under ERISA.

         The term "Permitted Liens" shall mean:

                  (e) the security interest created under the Security Agreement
         in favor of the holders of the Notes;

                  (f)  Liens  for  taxes  if  payment  shall  not at the time be
         required to be made in accordance with the provisions of Section 7.2;

                                      -36-

<PAGE>



                  (g)  Liens of  carriers,  warehousemen,  mechanics,  laborers,
         materialmen  and landlords  incurred in the ordinary course of business
         for sums not yet due or being contested in good faith, if payment shall
         not be required to be made in accordance with the provisions of Section
         7.2;

                  (h) Liens  arising out of judgments or awards,  and appeal and
         similar bonds  incident to the conduct of legal  actions,  against such
         Person  with  respect to which such  Person  shall then be  prosecuting
         appeal or other proceedings for review (and as to which any foreclosure
         or other  enforcement  proceedings  shall not have  begun or shall have
         been fully bonded or otherwise effectively stayed);

                  (i) Liens  incurred  in the  ordinary  course of  business  in
         connection with worker's compensation and unemployment  insurance Laws,
         but  only  so  long  as no  foreclosure,  distraint,  sale  or  similar
         proceedings have been commenced with respect thereto; and

                  (j)  Liens set forth in the Disclosure Schedule.

         The term "Person" shall mean any natural individual, corporation, firm,
unincorporated  organization,   association,   partnership,   limited  liability
company,  business  trust,  joint stock company,  joint venture,  trust or other
organization,  entity or business, or any governmental authority, whether acting
in an individual, fiduciary or other capacity.

         The term  "Plan"  shall  mean,  with  respect  to any  Person  and at a
particular  time,  any  employee  benefit  plan which is covered by ERISA and in
respect of which such Person or an ERISA Affiliate (as defined in ERISA) is (or,
if such plan were terminated at such time, would under Sec tion 4069 of ERISA be
deemed to be) an "employer" as defined in Section 3(5) of ERISA.

         The term "Potential Default" shall mean any event or circumstance which
after notice, passage of time, or both, would become an Event of Default.

         the term "Prepayment Penalty" is defined in the Additional Compensation
Certificates.

         The term "Prime Rate" is defined in Section 1.1.

         The  term   "Private   Authorizations"   shall   mean  all   approvals,
concessions,  consents, franchises,  licenses, permits, and other authorizations
of all Persons (other than  Authorities)  other than those of a nature  included
within  the  definition  of  Intellectual  Property  which,  in the  case of the
Company,  relates to the  ownership  or  operation  of the Diablo  Assets or the
conduct of the Diablo Business.

         The term "Purchase Price" is defined in Section 1.2.

         The term  "Related  Agreement"  shall mean this  Agreement,  the Notes,
Acquisition  Agreement (if executed and  delivered),  and each other  agreement,
instrument and other document executed or required to be executed by the Company
on the Closing Date or at any time thereafter,

                                      -37-

<PAGE>



in connection with the transactions contemplated by this Agreement or any of the
other Related  Agreements,  in each case, as amended,  modified or  supplemented
from time to time.

         The term  "Rental  Obligations,"  with  respect  to any  lease  for any
period,  shall mean the minimum amount of rental payments required to be made in
such period by the lessee under such Lease,  including  without  limitation  any
amounts required to be paid by such lessee,  whether or not designated as rental
or additional  rental:  (a) on account of  maintenance  and repairs,  insurance,
taxes, assessments, water and sewer rates and similar charges, and (b) which are
payable on the basis of profits, revenues or sales to be derived from the leased
property or any other index of performance.

         The term "Sanwa  Loan  Agreement"  shall mean the Term Loan  Agreement,
dated as of January 31, 1996,  by and between Sanwa Bank  California  and Diablo
Communications,  Inc. and Richard D. Spight,  Trustee of the Mary Colores Spight
Family Trust U/A/D June 16, 1983, as amended as of the date hereof.

         The term  "Securities  Act" shall mean the  Securities Act of 1933, and
the rules and regulations  promulgated  thereunder,  all as from time to time in
effect,  or any successor  law, rules or  regulations,  and any reference to any
statutory  or  regulatory  provision  shall be deemed to be a  reference  to any
successor statutory or regulatory provision.

         The term "Securities  Exchange Act" shall mean the Securities  Exchange
Act of 1934, and the rules and regulations promulgated  thereunder,  all as from
time to time in effect,  or any successor  law,  rules or  regulations,  and any
reference  to any  statutory  or  regulatory  provision  shall be deemed to be a
reference to any successor statutory or regulatory provision.

         The  term  "Solvent"  shall  mean,  with  respect  to any  Person  on a
particular  date,  that on such  date (i) the fair  value of the  assets of such
Person (both at fair  valuation and at present fair  saleable  value) is, on the
date of determination,  greater than the total amount of liabilities, including,
without  limitation,  contingent and unliquidated  liabilities,  of such Person,
(ii) such Person is able to pay all  liabilities  of such Person as they mature,
and (iii) such Person does not have  unreasonably  small  capital  with which to
carry on its business.  In computing  the amount of  contingent or  unliquidated
liabilities at any time, such  liabilities will be computed at the amount which,
in light of all the facts and  circumstances  existing at such time,  represents
the  amount  that can  reasonably  be  expected  to become an actual or  matured
liability.  For  purposes  of this  definition,  "indebtedness"  shall  mean any
liability on a claim,  and "claim"  shall mean (a) right to payment,  whether or
not  such  right  is  reduced  to  judgment,  liquidated,  unliquidated,  fixed,
contingent,  matured, unmatured,  disputed, undisputed, legal equitable, secured
or unsecured,  or (b) right to an equitable  remedy for breach of performance if
such breach  gives rise to a payment,  whether or not such right to an equitable
remedy is reduced to judgment, fixed, contingent,  matured, unmatured, disputed,
undisputed, secured or unsecured.

         The term "Subject Sites" is defined in Section 1.1.

         The term  "Subsidiary"  with respect to any corporation  (the "parent")
shall mean any Person of which such parent, at the time in respect of which such
term is used,  (a) owns directly or indirectly  more than fifty percent (50%) of
the equity or beneficial interest, on a consolidated basis,

                                      -38-

<PAGE>



and (b) owns directly or controls with power to vote,  indirectly through one or
more  Subsidiaries,  shares of capital stock or beneficial  interest  having the
power to cast at  least a  majority  of the  votes  entitled  to be cast for the
election of the directors,  trustees,  managers or other officials having powers
analogous to those of directors of a corporation.  Unless otherwise specifically
indicated,  when used  herein  the term  Subsidiary  shall  refer to a direct or
indirect Subsidiary of the Company.

         The term "Tax" (and with correlative meanings,  "Taxes" and "Taxable"),
shall mean,  with  respect to any Person,  (a) any net  income,  alternative  or
add-on minimum tax, gross income, gross receipts, gains, sales, use, ad valorem,
transfer, franchise, profits, license, withholding on amounts paid to or by such
Person  or any of its  Subsidiaries,  payroll,  employment,  excise,  severance,
stamp,  occupation,  premium,  property,  environmental  or windfall profit tax,
custom,  duty or other tax,  governmental fee or other like assessment or charge
of any kind whatsoever,  together with any interest or any penalty,  addition to
tax or  additional  amount  imposed  by any  Authority  (a  "Taxing  Authority")
responsible for the imposition of any such tax (domestic or foreign),  (b) joint
or several  liability of such Person or any of its  Subsidiaries  with any other
Person for the  payment  of any  amounts  of the type  described  in (a) and (c)
liability  of such  Person or any of its  Subsidiaries  for the  payment  of any
amounts  of the type  described  in (a) as a result of any  express  or  implied
obligation to indemnify any other Person.

         The  term  "Tax  Returns"  shall  mean  all  returns,  consolidated  or
otherwise  (including without limitation  information  returns),  required to be
filed in any jurisdiction with respect to Taxes.

         The term  "Transfer"  shall  mean  any  sale,  assignment,  conveyance,
transfer or other disposition,  mortgage, pledge or other Lien, lease, exchange,
abandonment,  parting with  control of, gift,  granting of an option or proxy or
other act of alienation.

         The term "Third Party Transfer" shall mean, with respect to any Person,
the Transfer of all or any substantial  portion of business,  property or assets
of such Person,  including in the case of the Company of all or any  substantial
portion of the Diablo  Assets or the Diablo  Business to any other  Person other
than (a) any Transfer to American or one of its  Affiliates or (b) any bona fide
mortgage,  pledge or other Lien  thereon  granted to a bank or other  recognized
financial  institution  pursuant to the incurrence of Indebtedness  and not with
the intent of avoiding Section 6.1 of this Agreement.

         The term  "Wholly-Owned  Subsidiary"  shall  mean a  Subsidiary  of the
Company,  all of the  outstanding  shares of every  class of stock  (other  than
directors'  qualifying  shares,  if required by statute,  the  certificates  for
which,  duly endorsed in blank or  accompanied by a stock power duly endorsed in
blank,  shall be held by such  Subsidiary) and all other securities of which are
at  the  time  owned,  directly  or  indirectly,   by  the  Company  or  another
Wholly-Owned Subsidiary.

         10.  Miscellaneous Provisions.

         10.1 Stamp and Other Taxes.  The Company  covenants  and agrees that it
will pay all United States and state  documentary stamp or similar excise taxes,
including  any interest or penalties  thereon,  which may be legally  payable in
connection  with or  arising  out of the  issue  of any of the  Notes  and  will
indemnify  each holder of any thereof  against,  and save it harmless  from, any
liability, cost or expense in respect of any such stamp taxes or other taxes and
any interest or penalties

                                      -39-

<PAGE>



         thereon.  The  Company's  agreement in this  connection  shall  survive
termination of this Agreement and the payment of the Notes.

         10.2  Expenses.  Whether or not the  transactions  contemplated  hereby
shall be  consummated,  the Company  will pay all of the  following  expenses in
connection  with such  transactions  and in con nection with any  amendments  or
waivers  (whether or not the same become  effective) under or in respect of this
Agreement,  the Notes and the other  Related  Agreements to which it is a party:
(a) the cost and  expenses  of its  counsel,  including  the  furnishing  of all
opinions by such counsel and all  certificates on behalf of the Company,  and of
the Company's  performance of and compliance  with all agreements and conditions
contained  herein on its part to be  performed or complied  with;  (b) the taxes
specified in Section 10.1; (c) the costs and expenses  specified in Sections 8.6
and 10.9;  and (d) the  out-of-pocket  expenses  incurred  by each holder of any
Notes in connection  with any  amendments  or waivers or in  connection  with or
arising out of any  litigation,  investigation  or proceeding  instituted by any
Authority or any other Person with respect to this  Agreement,  the Notes or the
other Related Agreements to which it is a party or the transactions contemplated
hereby and  requiring  such holder's  participation  or  involvement,  except as
otherwise provided in the Acquisition Agreement.

         Anything in this Section or elsewhere in this Agreement to the contrary
notwithstanding,  in the event of any Legal  Action  between the Company and the
holders from time to time of the Notes,  the prevailing  party shall be entitled
to be  reimbursed  for the  reasonable  legal fees and  expenses and other court
costs of such Legal Action.

         10.3  Survival of Covenants;  Successors  and Assigns.  All  covenants,
agreements  and  representations  made herein and in  certificates  delivered in
connection  herewith  shall  be  deemed  material  and  relied  on  by  American
notwithstanding any investigation made by it or in its behalf, and shall survive
the execution  and delivery of the Notes,  to it and its payment  therefor,  and
shall bind and,  subject to compliance  with the  provisions  of this  Agreement
including without limitation Section 7.12, inure to the benefit of the Company's
successors  and assigns,  whether so  expressed or not, and all such  covenants,
agreements and representations  shall inure to the benefit of the successors and
assigns of American, whether so expressed or not.

         10.4 Notices and Communications.  All notices and other  communications
which by any  provision of this  Agreement are required or permitted to be given
shall be given in writing and shall be (i) mailed by  first-class,  express mail
or other overnight mail service,  postage  prepaid,  or Federal Express or other
overnight mail courier service, (ii) sent by telex, telegram,  telecopy or other
similar  form of rapid  transmission,  confirmed  by mailing  (by first class or
express  mail,  postage  prepaid,  or Federal  Express or other  overnight  mail
courier  service) written  confirmation at  substantially  the same time as such
rapid transmission, or (iii) personally delivered to an officer of the receiving
party. All such communications shall be mailed, set or delivered:

                  (a) if to the Company, at 1220 Brickyard Cove Road, Suite 200,
         Point  Richmond,  CA  94801,  (facsimile  [510]  236-3799),  attention:
         Richard Spight,  Chairman (with a copy to Cooper,  White & Cooper, 1333
         North  California  Boulevard,   Suite  450,  Walnut  Creek,  CA  94596,
         (facsimile [510] 256-9428), attention: Keith Howard, Esq.);


                                      -40-

<PAGE>



                  (b) if to American, at 6400 North Congress Avenue, Suite 1750,
         Boca Raton, FL 33487, (facsimile: [407] 998-2278),  attention: James S.
         Eisenstein,  Chief  Operating  Officer  (with copies to American  Radio
         Systems   Corporation,   116  Huntington  Avenue,   Boston,  MA  02116,
         (facsimile [617] 375-7575),  attention: Joseph L. Winn, Chief Financial
         Officer, and Sullivan & Worcester LLP, One Post Office Square,  Boston,
         Massachusetts 02109, (facsimile [617] 338-2880),  attention:  Norman A.
         Bikales, Esq.); and

                  (c) if to any other  Holders of Notes to the address set forth
         in the Company's records;

or at such other  addresses  (including  copies) as any party may  designate  in
writing to the other parties to this Agreement.

         A notice  delivered in person shall be effective  when received or upon
refusal to accept  receipt;  a notice  sent by mail  shall not become  effective
until  received  by the  Person  to whom it is  given,  unless  it is  mailed by
registered or certified mail, in which case it shall be deemed  effective on the
date of receipt or refusal to accept receipt as indicated by postal  records;  a
notice sent by rapid  transmission  shall be deemed to be given when  receipt of
such transmission is acknowledged.

         10.5  Amendments  and Waivers.  Any provision of this  Agreement to the
contrary  notwithstanding,  changes in or  additions to this  Agreement  and the
Notes may be made, or compli ance with any term, covenant, agreement,  condition
or provision  set forth  herein,  in the Notes may be omitted or waived  (either
generally or in a particular instance and either retroactively or prospectively)
with,  but only with,  the  consent in writing of the  holders of a majority  in
principal  amount of the Notes at the time  outstanding and the Company,  except
that no such  change,  addition,  omission,  waiver or consent  may be made with
respect to the Notes,  without  the  consent of all of the holders of the Notes,
except as  otherwise  provided  in  Section  8.3,  if it  involves  any  change,
addition,  omission,  waiver or consent with respect to the provisions regarding
the  amount,  timing or form of payment of  premium,  if any,  or interest on or
principal of the Notes, the maturity date thereof or which changes or amends the
provisions of this Section with respect to the requirement of unanimous  consent
of the  Noteholders;  and each such change,  addition or waiver shall be binding
upon each  future  holder  of the Notes  and,  in the case of the  Company,  its
successors  and  permitted  assigns.   Any  consent  may  be  given  subject  to
satisfaction of conditions stated therein. The failure to insist upon the strict
provisions of any covenant, term, condition or other provision of this Agreement
or the Notes or to exercise any right or remedy  hereunder or  thereunder  shall
not constitute a waiver of any such covenant, term, condition or other provision
thereof or Potential  Default or Event of Default in connection  therewith.  The
waiver of any covenant,  term, condition or other provision hereof or thereof or
Potential  Default or Event of Default  hereunder shall not affect or alter this
Agreement or the Notes in any other respect, and each and every covenant,  term,
condition or other  provision  of this  Agreement  and the Notes shall,  in such
event,  continue  in full force and  effect,  except as so waived,  and shall be
operative  with  respect  to any other then  existing  or  subsequent  Potential
Default or Event of Default in connection therewith.

         10.6 Governing Law; Venue.  This Agreement is and shall be deemed to be
a contract  made  under,  and the  validity,  interpretation,  construction  and
performance of this Agreement  shall be governed by, the applicable  laws of the
United States of America and the domestic  substantive  laws of the State of New
York without giving effect to any choice or conflict of laws provision or rule

                                      -41-

<PAGE>



that would  cause the  application  of  domestic  substantive  laws of any other
jurisdiction.  In the event of any Legal Action between the parties  arising out
of this  Agreement,  the parties  agree to submit the matter to the  appropriate
municipal, state or federal court sitting in San Francisco,  California, and the
parties agree to submit to the jurisdiction of such courts.

         10.7 Entire  Agreement.  This Agreement (which term, unless the context
otherwise  specifically  requires,  includes all Exhibits and Schedules  hereto)
constitutes the entire  agreement  between American and the Company with respect
to the subject matter hereof and supersedes all prior agreements,  arrangements,
covenants, promises, conditions,  understandings,  inducements,  representations
and negotiations, expressed or implied, oral or written, between them as to such
subject matter.

         10.8 Saturdays,  Sundays,  Holidays,  etc. If the last or appointed day
for taking of any action  required or  permitted  hereby or by the Notes  (other
than the payment of principal  of or interest or premium,  if any, on the Notes)
shall be a  Saturday,  Sunday or legal  holiday  in Boca  Raton,  Florida or San
Francisco,  California,  or a day on which banking  institutions  in Boca Raton,
Florida or San Francisco,  California,  are authorized by law or executive order
to close, then such action may be taken on the next succeeding  business day for
banking institutions in such cities.

         10.9  Brokers,  etc. No broker,  finder or other  person  performing  a
similar  function has been retained by the Company in connection  with the issue
and  sale of the  Notes or the  Acquisition.  The  Company  will  pay,  and will
indemnify and hold harmless American and its officers, directors,  stockholders,
employees,  trustees and agents from, the fees,  commissions and expenses of any
Person purporting to have acted on the Company's behalf in such connection or in
connection  with the issue and sale of the Notes and the  Acquisition.  American
will pay, and will  indemnify  and hold  harmless the Company and its  officers,
directors,  employees,  trustees  and agents  from,  the fees,  commissions  and
expenses of any Person  purporting  to have acted on  American's  behalf in such
connection  or in  connection  with  the  issue  and sale of the  Notes  and the
Acquisition.

         10.10 Headings;  Counterparts. The headings contained in this Agreement
are for  reference  purposes  only and shall not limit or  otherwise  affect the
meaning of any provision of this  Agreement.  This  Agreement may be executed in
any number of counterparts, each of which shall be an original, but all of which
together  shall  constitute  one  instrument,  binding  upon all of the  parties
hereto. In pleading or proving any provision of this Agreement,  it shall not be
necessary to produce more than one of such counterparts.

         10.11 Severability. If any provision of this Agreement shall be held or
deemed  to  be,  or  shall  in  fact  be,  invalid,   inoperative,   illegal  or
unenforceable  as  applied  to  any  particular  case  in  any  jurisdiction  or
jurisdictions,  or in all jurisdictions or in all cases, because of the conflict
of any provision  with any  constitution  or statute or rule of public policy or
for any other reason,  such circumstance  shall not have the effect of rendering
the  provision  or  provisions  in  question  invalid,  inoperative,  illegal or
unenforceable in any other  jurisdiction or in any other case or circumstance or
of  rendering  any other  provision  or  provisions  herein  contained  invalid,
inoperative,  illegal or  unenforceable to the extent that such other provisions
are not themselves actually in conflict with such constitution,  statute or rule
of public policy, but this Agreement shall be reformed and construed in any such
jurisdiction or case as if such invalid, inoperative, illegal or unenforceable

                                      -42-

<PAGE>


provision had never been contained herein and such provision reformed so that it
would be valid,  operative and  enforceable to the maximum  extent  permitted in
such jurisdiction or in such case.

         10.12 Further  Assurances  Each of the parties hereto agrees to execute
and deliver those writings and documents reasonably required to more fully carry
out the acts contemplated  hereby,  and each party hereby agrees, at the written
request  of any  other  party,  to  advise  any  Person  of the  status  of this
Agreement,  the Notes or any of the other Related  Agreements  and to the effect
that any of the same is or is not in default.

         10.13 Specific  Performance;  Other Rights.  The parties recognize that
various  of the  rights of the  parties  under this  Agreement  are unique  and,
accordingly,  the parties  shall,  in addition to such other  remedies as may be
available  to it at law or in  equity,  have the  right to  enforce  its  rights
hereunder  by actions for  injunctive  relief and  specific  performance  to the
extent  permitted  by Law.  Nothing  herein  contained  shall  be  construed  as
prohibiting  either party from pursuing any other  remedies  available to it for
such breach or threatened  breach,  including without limitation the recovery of
damages.

         10.14   Non-Recourse   Obligation.   The  obligations  of  the  Company
represented  by the Notes are  nonrecourse to the  stockholders  of the Company,
and,  notwithstanding any provision to the contrary in this Agreement,  the Note
or any of the other  Related  Agreements,  American  agrees for itself,  and its
successors  and assigns that (a) neither any  stockholder of the Company nor his
successors and assigns shall be personally  liable on the Notes,  and (b) in the
event that one or more Events of  Defaults  has  occurred  or any other  default
whatsoever has occurred under this Agreement or the Notes,  American,  or any of
its  successors  and assigns,  shall look solely to the Company and its property
and  assets,  including  without  limitation  the  Diablo  Assets and the Diablo
Business,  of the  Company for payment of the  indebtedness  represented  by the
Notes and will not make any claim or institute any action or proceeding  against
any  stockholder  of the Company,  or any of his  successors  and  assigns,  for
payment of such indebtedness (or for any deficiency).

         IN WITNESS WHEREOF the parties hereto have executed this Agreement, all
pursuant to authority  heretofore  granted,  to the extent applicable,  by their
respective Boards of Directors, as of the date and year first above written.

                                       Diablo Communications, Inc.

                                       By:________________________________
                                             Name:
                                             Title:

                                       American Tower Systems Corporation

                                       By:________________________________
                                             Name:
                                             Title:



                                      -43-




                                                                   EXHIBIT 10.4C

                            ASSET PURCHASE AGREEMENT

                                 By and Between

                          AMERICAN TOWER SYSTEMS, INC.

                                       and

               DIABLO COMMUNICATIONS OF SOUTHERN CALIFORNIA, INC.

                                   Dated as of

                                  July 8, 1997











<PAGE>




<TABLE>
<CAPTION>
                                TABLE OF CONTENTS

<S>               <C>                                                                                            <C>
ARTICLE 1         DEFINED TERMS...................................................................................1

ARTICLE 2         SALE AND PURCHASE OF ASSETS.....................................................................2
                  2.1      Agreement to Sell and Buy..............................................................2
                  2.2      Assumption of Liabilities and Obligations. ............................................2
                  2.3      Closing; Purchase Price................................................................5
                  2.4      Accounts Receivable....................................................................6
                  2.5      Like-Kind Exchanges....................................................................7

ARTICLE 3         REPRESENTATIONS AND WARRANTIES OF DIABLO........................................................7
                  3.1      Organization and Business; Power and Authority; Effect of Transaction..................7
                  3.2      Financial and Other Information.  .....................................................8
                  3.3      Changes in Condition...................................................................9
                  3.4      Materiality............................................................................9
                  3.5      Title to Properties; Leases............................................................9
                  3.6      Compliance with Private Authorizations................................................10
                  3.7      Compliance with Governmental Authorizations and Applicable Law........................11
                  3.8      Intangible Assets.....................................................................12
                  3.9      Related Transactions..................................................................12
                  3.10     Insurance.............................................................................12
                  3.11     Tax Matters.  ........................................................................12
                  3.12     Employee Retirement Income Security Act of 1974.......................................13
                  3.13     Absence of Sensitive Payments.........................................................15
                  3.14     Inapplicability of Specified Statutes.................................................15
                  3.15     Employment Arrangements...............................................................15
                  3.16     Material Agreements...................................................................15
                  3.17     Ordinary Course of Business...........................................................16
                  3.18     Material and Adverse Restrictions.....................................................16
                  3.19     Broker or Finder......................................................................17
                  3.20     Solvency..............................................................................17
                  3.21     Environmental Matters.................................................................17

ARTICLE 4         REPRESENTATIONS AND WARRANTIES OF ATS..........................................................17
                  4.1      Organization and Business; Power and Authority; Effect of Transaction.................17
                  4.2      Broker or Finder......................................................................18
                  4.3      Solvency..............................................................................18
                  4.4      No Legal Action.......................................................................18

ARTICLE 5         COVENANTS......................................................................................18
                  5.1      Access to Information; Confidentiality................................................18
                  5.2      Agreement to Cooperate.  .............................................................19
                  5.3      Public Announcements..................................................................20
                  5.4      Notification of Certain Matters.......................................................20
                  5.5      No Solicitation.......................................................................21
                  5.6      Conduct of Business by Diablo Pending the Closing.....................................21
                  5.7      Preliminary Title Reports.............................................................22
                  5.8      Environmental Site Assessments........................................................23
                  5.9      Post-Closing Covenants and Agreements of the Parties..................................23


                                       

<PAGE>



ARTICLE 6         CLOSING CONDITIONS.............................................................................24
                  6.1      Conditions to Obligations of Each Party to effect the Transactions....................24
                  6.2      Conditions to Obligations of ATS......................................................24
                  6.3      Conditions to Obligations of Diablo...................................................27

ARTICLE 7         TERMINATION, AMENDMENT AND WAIVER..............................................................28
                  7.1      Termination...........................................................................28
                  7.2      Effect of Termination.................................................................28

ARTICLE 8         INDEMNIFICATION................................................................................29
                  8.1      Survival..............................................................................29
                  8.2      Indemnification.......................................................................29
                  8.3      Limitation of Liability...............................................................30
                  8.4      Notice of Claims......................................................................31
                  8.5      Defense of Third Party Claims.........................................................32
                  8.6      Exclusive Remedy......................................................................32

ARTICLE 9         GENERAL PROVISIONS.............................................................................32
                  9.1      Amendment.............................................................................32
                  9.2      Waiver................................................................................32
                  9.3      Fees, Expenses and Other Payments.....................................................33
                  9.4      Notices...............................................................................33
                  9.5      Specific Performance; Other Rights and Remedies.......................................34
                  9.6      Severability..........................................................................34
                  9.7      Counterparts..........................................................................35
                  9.8      Section Headings......................................................................35
                  9.9      Governing Law; Venue..................................................................35
                  9.10     Further Acts..........................................................................35
                  9.11     Entire Agreement......................................................................35
                  9.12     Assignment............................................................................35
                  9.13     Parties in Interest...................................................................35
                  9.14     Mutual Drafting.......................................................................35
                  9.15     Arbitration...........................................................................36
                  9.16     Disclosure Schedule...................................................................36
</TABLE>

APPENDIX A:                Definitions

SCHEDULES:

         Diablo Disclosure Schedule

EXHIBITS:

         EXHIBIT A         Form of Noncompetition Agreement (Section 6.2(j))
         EXHIBIT B         Form of Indemnity Escrow Agreement (Section 6.2(k))



                                      -ii-

<PAGE>




                            ASSET PURCHASE AGREEMENT

         This Asset Purchase Agreement (this "Agreement") is dated as of July 8,
1997 by and  between  American  Tower  Systems,  Inc.,  a  Delaware  corporation
("ATS"), and Diablo  Communications of Southern  California,  Inc., a California
corporation ("Diablo").

         WHEREAS,  Diablo owns and leases and operates  communication towers and
is engaged in the  business of managing  communication  sites for third  parties
(the "Diablo Business");

         WHEREAS,  ATS desires to purchase and Diablo  desire to sell the Diablo
Assets and the  Diablo  Business  on the terms and  conditions  hereinafter  set
forth;

         WHEREAS,  simultaneously  with  the  execution  and  delivery  of  this
Agreement,  ATS and Diablo have  entered into an escrow  agreement  (the "Escrow
Agreement") with Bank of San Francisco (the "Escrow  Agent"),  pursuant to which
ATS has made a deposit of $200,000 (the "Escrow Deposit");

         WHEREAS,  ATS is party  to an  asset  purchase  agreement  with  Diablo
Communications,  Inc., a California corporation ("DCI"), dated as of the date of
this Agreement (the "Other Agreement"), relating to the purchase and sale of the
communication towers and the business of managing  communication sites for third
parties of DCI; and

         WHEREAS,  ATS and Diablo have heretofore  executed and delivered a Note
Purchase Agreement, dated as of March 20, 1997 (the "Note Agreement"),  pursuant
to which Diablo has issued an unsecured note in the aggregate  principal  amount
of up to Seven Hundred Fifty Thousand Dollars ($750,000) (the "Interim Financing
Note");

         NOW,  THEREFORE,  in  consideration  of  the  above  premises  and  the
covenants and agreements contained herein, the parties,  intending to be legally
bound, do hereby covenant and agree as follows:


                                    ARTICLE 1

                                  DEFINED TERMS

         As used  herein,  unless  the  context  otherwise  requires,  the terms
defined in  Appendix A shall have the  respective  meanings  set forth  therein.
Terms defined in the singular  shall have a comparable  meaning when used in the
plural,  and vice  versa,  and the  reference  to any gender  shall be deemed to
include all genders.  Unless otherwise  defined or the context otherwise clearly
requires,  terms for which  meanings are provided in this  Agreement  shall have
such meanings when used in the Diablo  Disclosure  Schedule and each  Collateral
Document  executed  or required  to be  executed  pursuant  hereto or thereto or
otherwise  delivered,  from time to time,  pursuant hereto or thereto.  The term
"either party" shall, unless the context otherwise requires, refer to Diablo and
ATS.



                                                      


<PAGE>



                                    ARTICLE 2

                           SALE AND PURCHASE OF ASSETS

         2.1 Agreement to Sell and Buy.  Subject to the terms and conditions set
forth in this  Agreement,  Diablo  hereby agrees to sell,  assign,  transfer and
deliver to ATS at the Closing,  and ATS agrees to purchase at the  Closing,  the
Diablo Assets and the Diablo Business, free and clear of any Liens of any nature
whatsoever except for Permitted Liens. For purposes of this Agreement,  the term
"Diablo Assets" shall mean all of the Assets of Diablo,  other than the Excluded
Assets.  For purposes of this Agreement,  the term "Excluded  Assets" shall mean
the following Assets:

                  (a) all cash;

                  (b) all cash equivalents;

                  (c) all Accounts Receivable;

                  (d) all books and records  (including without  limitation,  if
         retained by Diablo,  any  financial  records  necessary or desirable to
         enable the condition specified in Section 6.2(g) to be satisfied) which
         Diablo is required by Applicable Law to retain, subject to the right of
         ATS to have access and to copy for a period of three (3) years from the
         Closing  Date;  the records  described  herein  shall  further  include
         without limitation all corporate seals,  certificates of incorporation,
         minute books,  stock books,  Tax Returns or other records  having to do
         with the corporate organization of Diablo;

                  (e) any pension,  profit-sharing  or employee  benefit  plans,
         including any assets in any related trusts;

                  (f) the miscellaneous assets of Diablo and the personal assets
         of the officers,  directors,  shareholders and employees of Diablo, all
         as  more  specifically  described  in  Section  2.1(f)  of  the  Diablo
         Disclosure Schedule;

                  (g) any of the real property specifically described in Section
         2.1(g)  of the  Diablo  Disclosure  Schedule  which is  covered  by any
         agreement  executed and delivered pursuant to the provisions of Section
         6.2(p); and

                  (h)  any  and all  products,  profits  and  proceeds  of,  and
         including  without  limitation  any Claims with  respect to, any of the
         foregoing.

         2.2      Assumption of Liabilities and Obligations.

         (a) At the Closing,  ATS shall assume and agree to pay,  discharge  and
perform the following obligations and liabilities of Diablo  (collectively,  the
"Diablo  Assumed  Obligations"):  (i) all of the  obligations and liabilities of
Diablo  under the Diablo  Assumable  Agreements,  and (ii) all  obligations  and
liabilities  of Diablo with respect to the ownership and operation of the Diablo
Assets and the conduct of the Diablo  Business,  on and after the Closing  Date;
provided,  however, that notwithstanding the foregoing, ATS shall not assume and
agree to pay, and shall not, except as provided in Section 2.2(c),  be obligated
with respect to, the Diablo Nonassumed Obligations.

         (b) Except as otherwise  specifically set forth in this Agreement or in
the Diablo Disclosure  Schedule to the contrary,  ATS shall not assume or become
obligated to perform any debt, liability or

                                       -2-


<PAGE>



obligation of Diablo relating to any of the following matters (collectively, the
"Diablo Nonassumed Obligations"):

                  (i) the  ownership or  operation  of the Diablo  Assets or the
         conduct of the Diablo  Business  prior to the Closing  Date,  including
         without  limitation  Taxes,  unfunded  pension  costs,  any  Employment
         Arrangement of Diablo (including  without  limitation any obligation to
         any Diablo  Employee for  severance  benefits or, except as provided in
         Section 2.2(c),  vacation time or sick leave), and any of the following
         to the extent same arise from Events  occurring prior to or existing on
         the Closing Date:  products  liability,  Legal Actions or other Claims,
         and obligations and liabilities relating to Environmental Law;

                  (ii) any obligations or liabilities under the Diablo Assumable
         Agreements relating to the period prior to the Closing;

                  (iii)  any insurance policies of Diablo;

                  (iv) those  required to be disclosed in the Diablo  Disclosure
         Schedule  which are not so disclosed or which,  if  disclosed,  Section
         2.2(b)(iv)  of the  Diablo  Disclosure  Schedule  indicates  that  such
         obligation or liability will not be assumed;

                  (v) any liability or obligation  from or relating to breach of
         any warranty or any misrepresentation by Diablo under this Agreement or
         any Collateral Document;

                  (vi) any liability or obligation from or relating to breach or
         violation  of, or  failure to  perform,  any of  Diablo's  obligations,
         covenants,  agreements or  undertakings  set forth in this Agreement or
         any Collateral Document, including without limitation Article 5 of this
         Agreement;

                  (vii) any  obligation  or  liability  relating to any Excluded
         Asset;

                  (viii) any obligation or liability with respect to capitalized
         lease obligations or Indebtedness for Money Borrowed;

                  (ix) any Taxes, fees, expenses or other amounts required to be
         paid by Diablo  pursuant to the  provisions  of this  Agreement  or any
         Collateral Document; and

                  (x) any  Contract  with any  Affiliate  of Diablo,  other than
         those set forth in Section 2(b)(x) of the Diablo Disclosure Schedule.

All  Diablo  Nonassumed  Obligations  shall  remain and be the  obligations  and
liabilities solely of Diablo.

         (c)  Anything in this  Section or  elsewhere  in this  Agreement to the
contrary  notwithstanding,  the term "Diablo  Nonassumed  Obligations" shall not
include,  and the term "Diablo Assumed  Obligations" shall include,  (i) the ATS
Assumed Vacation  Liability and the ATS Accrued Sick Time Liability and (ii) any
liability  arising out of the  transfer or  assignment  to ATS of, or the use or
enjoyment of the benefits by ATS under, any Contract, Governmental Authorization
or Private  Authorization  the transfer or  assignment  of which  (according  to
Section  2.2(c) of the Diablo  Disclosure  Schedule or according to the terms of
such Government  Authorization or Private Authorization) requires or may require
the  consent  of  any  Authority  or  other  third  party   (collectively,   the
"Nonassignable  Contracts"),  if ATS  has,  on or  prior  to the  Closing  Date,
notified  Diablo in writing (an  "Acceptance  Notice")  that ATS consents to the
transfer or assignment  of such  Nonassignable  Contract  despite the failure or
inability of ATS and Diablo to obtain the approval or consent

                                       -3-


<PAGE>



of an Authority or other Person whose  approval or consent is required  pursuant
to the terms of such  Nonassignable  Contract,  or receives the benefits of such
Nonassignable Contract, in either of which events, if the approval or consent of
an  Authority  or other  Person  applicable  to transfer  of such  Nonassignable
Contract  is required to be  obtained  as a  condition  to ATS'  obligations  at
Closing  pursuant to the  provisions of Section  6.1(a),  6.2(d) or 6.2(m),  ATS
shall be deemed to have waived such condition with respect to such Nonassignable
Contract.  With respect to any  Nonassignable  Contract for which the applicable
consent  of  any  Authority  or  other  Person  is  not  obtained  prior  to the
Termination Date and for which ATS does not timely deliver an Acceptance  Notice
as  described  in the  preceding  sentence,  Diablo and ATS shall  enter into an
agreement  reasonably  acceptable  to each party  which  agreement  shall to the
maximum extent  feasible  provide ATS with the rights,  benefits and obligations
under such Nonassignable  Contracts.  The term "ATS Assumed Vacation  Liability"
shall mean the liability for Diablo  employees with respect to accrued  vacation
(or  payment  in lieu  thereof),  whether  accrued  before or after the  Closing
subject to the following limitations and/or qualifications: (i) accrued vacation
for all Diablo  Employees  who are  retained by Diablo after the Closing will be
the sole responsibility of Diablo; (ii) accrued vacation for any Diablo Employee
who elects to resign prior to close,  for reasons other than the sale to ATS, or
whom Diablo chooses to terminate with or without cause,  other than by reason of
the sale to ATS,  will be the  sole  responsibility  of  Diablo;  (iii)  accrued
vacation for Diablo  Employees  who  terminate at Closing and who are either not
rehired  by  ATS or who  choose  not to be  employed  by ATS  will  be the  sole
responsibility  of  ATS;  (iv)  accrued  vacation,  to the  time of  close,  for
employees who are  terminated  by Diablo but rehired by ATS who terminate  their
employment  with ATS but who ATS  wishes to remain as an  employee,  will be the
responsibility of Diablo;  any accrued vacation after Closing for such employees
will be the  responsibility  of ATS;  and (v) accrued  vacation for any employee
terminated by Diablo, rehired by ATS and subsequently terminated by ATS, as well
as accrued  vacation for any employee who is terminated by Diablo prior to close
at the request of ATS,  will be the sole  responsibility  of ATS.  The term "ATS
Accrued Sick Time  Liability"  shall mean the liability  with respect to accrued
sick time (as provided in the applicable  Diablo  Benefit  Arrangement or Plan),
accrued on or before the Closing of Diablo Employees who become employees of ATS
after the  Closing.  Although  ATS has not had an  opportunity  to complete  its
evaluation of the Diablo  employees,  except for the employees being retained by
Diablo,  it is the current intention of ATS to hire initially all of the current
Diablo  employees at positions and  compensation  generally  comparable to those
currently in effect,  subject,  however, to the right of ATS, upon completion of
its  evaluation  and  to  its   determination  of  the  overall  needs  of  ATS,
particularly in light of its general  staffing  patterns and of other pending or
prospective  acquisitions  of comparable  businesses in the state of California,
not to offer such employment to certain of the Diablo  employees or to alter the
terms of such employment,  including the positions and compensation. In no event
shall the  expression  of ATS'  current  intention be deemed to be a covenant or
agreement  of ATS to so employ any  particular  current  Diablo  employee and no
rights to employment by any particular  current Diablo employee shall be created
hereby.

         (d)  Notwithstanding  anything  contained  in  this  Agreement  to  the
contrary,  except  as set  forth in  Section  2.2(d)  of the  Diablo  Disclosure
Schedule,  all items of income and expense  (including  without  limitation with
respect to rent,  utility  charges,  Pro Ratable  Taxes and wages and  salaries)
arising from the  ownership or operation of the Diablo  Assets or the conduct of
the Diablo  Business  shall be prorated as of 12:01 a.m.,  Pacific  time, on the
Closing Date,  with Diablo  entitled to and responsible for any such items on or
prior to the Closing Date and ATS entitled to and responsible for any such items
relating  to any  subsequent  period.  For these  purposes,  Pro  Ratable  Taxes
attributable  to a period  that begins  before and ends after the  Closing  Date
shall be treated on a "closing of the books" basis as two partial  periods,  one
ending at the close of the Closing Date and the other beginning on the day after
the Closing Date, except that Pro Ratable Taxes (such as property Taxes) imposed
on a periodic  basis shall be allocated on a daily basis.  If either party shall
have  received  any such  revenues or paid any such  expenses or charges  which,
pursuant to the terms hereof, the other party is entitled to or responsible for,
it shall furnish the other party with a detailed  statement of any such items as
soon as  practicable  after  receipt or payment  thereof.  The parties shall use
their best efforts to

                                       -4-


<PAGE>



agree upon such items and other  adjustments  prior to the Closing  Date and, in
any  event,  except as set forth in  Section  2.2(c)  of the  Diablo  Disclosure
Schedule,  within sixty (60) days  thereafter.  If the parties are unable within
such  period to agree  upon such  items and other  adjustments,  Diablo  and ATS
shall,  within the following ten (10) days, jointly designate a nationally known
independent public accounting firm to be retained to review such items and other
adjustments.  The fees and other expenses of retaining such  independent  public
accounting firm shall be borne equally by Diablo and ATS. Such firm shall report
its conclusions as to such items and other adjustments  pursuant to this Section
and such report shall be  conclusive  on all parties to this  Agreement  and not
subject to  dispute or review.  Upon such  agreement  or  determination  by such
independent  accounting firm,  Diablo or ATS, as the case may be, shall promptly
reimburse the other party for any income  received or expenses paid by the other
party and not  previously  reimbursed or any other  adjustment  required by this
Section.  Notwithstanding the foregoing or any other provision of this Agreement
to the contrary,  ATS shall be solely  responsible for the payment of, and shall
defend,  indemnify  and  hold  harmless  Diablo,  its  officers,  directors  and
shareholders  from,  any and all  supplemental  or  additional  real property or
personal  property taxes assessed on or in connection  with the Diablo Assets or
any part  thereof,  which  arise  from  the  transactions  contemplated  by this
Agreement,  with  respect to  California  or other sales  and/or use taxes,  and
documentary  or  governmental  transfer or stamp taxes arising from the purchase
and sale of the Diablo Assets and the Diablo Business contemplated hereby.

         Nothing contained in this Section 2.2(d) is intended or shall be deemed
to amend or modify the indemnification provisions of Article 8 nor to reallocate
responsibility for the matters set forth therein.

         2.3  Closing;  Purchase  Price.  The closing of the  Transactions  (the
"Closing")  shall take place at Cooper,  White & Cooper,  1333 North  California
Boulevard,  Suite 450, Walnut Creek, CA 94596, at 10:00 a.m.,  local time, on or
before  September 30, 1997, (the "Closing  Date").  At the Closing,  each of the
parties  shall  deliver  such  bills  of  sale,   assignments,   assumptions  of
liabilities,  opinions and other  instruments  and documents as are described in
this  Agreement or as may be otherwise  reasonably  requested by the parties and
their  respective  counsel.  The  purchase  price for the Diablo  Assets and the
Diablo  Business (the "Purchase  Price") shall be an amount equal to $4,500,000,
plus an amount equal to the sum of the Interim  Adjustment and Prepaid  Expenses
and deposits  and minus an amount equal to the sum of (i) the Diablo  Nonassumed
Obligations,  if any,  which ATS  agrees to assume at the  request of Diablo and
(ii) Prepaid Revenues.  The term "Interim Adjustment" shall mean an amount equal
to the aggregate  amount actually  incurred by Diablo from and after November 1,
1996  and  prior  to  the  Closing  Date  with  respect  to  the  completion  of
construction projects and site development  projections (a) described in Section
2.3 of the Diablo  Disclosure  Schedule or (b)  acquired  after the date of this
Agreement in accordance with the provisions of this Agreement, including without
limitation  Section 5.6, and capital  improvements  to, but not personnel costs,
maintenance or other expenses items of,  existing  communication  sites,  in all
cases,  which ATS shall have  approved in writing  prior to their  incurrence or
commitment  by Diablo.  Section  2.3(a) of the Diablo  Disclosure  Schedule sets
forth a description of the items  constituting a part of the Interim  Adjustment
for the period  ended as of a date not more than five (5) days prior to the date
of this  Agreement.  The  Purchase  Price shall be payable by (a)  delivery  and
cancellation  of the  Interim  Financing  Note and the  Additional  Compensation
Certificates (as defined in the Note Agreement)  (valued for such purposes at an
amount equal to the unpaid principal amount of the Interim Financing Notes, plus
accrued and unpaid interest to the Closing Date), (b) ATS instructing the Escrow
Agent to deliver the Escrow Deposit (together with interest and other increments
thereto) to Diablo, (c) crediting against the Purchase Price amounts paid by ATS
pursuant to the  amendment  included as part of the Letter of Intent,  and,  the
balance,  (d) wire transfer of immediately  available funds (i) to the Indemnity
Escrow  Agent  (or as it  may  designate)  pursuant  to  the  provisions  of the
Indemnity Escrow Agreement in the amount of $100,000 (together with interest and
earnings  thereon,  the  "Indemnity  Escrow Fund") and (ii) to Diablo or, to the
extent provided in Section 2.5, the "qualified intermediary" designated pursuant
to the  provisions of Section 2.5, for the balance of the Purchase Price to such
account (or accounts)

                                       -5-


<PAGE>



as Diablo shall  designate in written  instructions  to ATS  delivered not later
than two (2) business days prior to the Closing.

         Although the parties  believe  that the value of the tangible  personal
property   (other   than   goodwill,   Governmental   Authorizations,    Private
Authorizations  and  Contracts)   constituting  a  part  of  the  Diablo  Assets
approximate  their depreciated book value, ATS shall have the right, at its sole
discretion,  to engage BIA  Consulting,  Inc. to promptly after the execution of
this Agreement  conduct and use its reasonable best efforts to complete,  within
forty-five (45) days, an appraisal of the Diablo Assets which shall be the basis
for an allocation schedule (the "Tax Allocation Schedule") pursuant to which the
Purchase Price shall be allocated among the Diablo Assets.  Such appraisal shall
be conducted in a manner which does not interfere with or  inconvenience  in any
material  matter any of the  landlords  or tenants at any of Diablo's  sites and
shall not, in any event,  affect the Purchase Price. The cost of such appraisal,
if  undertaken,  shall be borne by ATS.  Each of Diablo and ATS shall report the
purchase  and sale of the Diablo  Assets and the Diablo  Business  and the other
Transactions in accordance with the Tax Allocation  Schedule for purposes of all
federal,  state and local Tax Returns and shall not take,  and shall cause their
respective Affiliates, representatives,  successors and assigns not to take, any
position on any federal, state or local Tax Return or report,  inconsistent with
such  reporting  position.  Each of Diablo and ATS shall promptly give the other
notice of any  disallowance  of or  challenge  to such  reporting  by any Taxing
Authority.  Notwithstanding the provisions of this Section,  the parties to this
Agreement  will  rely  solely  on their  own  advisors  in  determining  the tax
consequences of the  transactions  contemplated by this Agreement and each party
is not relying,  and will not rely, on any  representations or assurances of any
other  party  regarding  such  consequences  other  than  the   representations,
warranties,  covenants and  agreements set forth in writing in this Agreement or
furnished pursuant to the provisions hereof.

         2.4 Accounts Receivable.  At the closing,  Diablo shall appoint ATS its
agent for the purpose of  collecting  all  Accounts  Receivable  relating to the
Diablo Business.  Diablo shall deliver to ATS on or as soon as practicable after
the Closing Date a complete and detailed  statement showing the name, amount and
age of each Accounts  Receivable of the Diablo Business.  Subject to and limited
by the following,  revenues relating to the Accounts  Receivable relating to the
Diablo Business will be for the account of Diablo.  ATS shall use its reasonable
business  efforts to collect the Accounts  Receivable with respect to the Diablo
Business  for a period of one hundred  eighty  (180) days after the Closing Date
(the  "Collection  Period").  Any payment  received by ATS during the Collection
Period from any customer  with an account which is an Accounts  Receivable  with
respect to the Diablo  Business  shall  first be  applied  in  reduction  of the
Accounts  Receivable,  unless the  customer  contests in writing the validity of
such application.  During the Collection Period, ATS shall furnish Diablo with a
list of, and pay over to  Diablo,  the  amounts  collected  with  respect to the
Accounts  Receivable  with respect to the Diablo Business on a monthly basis and
forward to Diablo, promptly upon receipt or delivery, as the case may be, copies
of all correspondence relating to Accounts Receivable.  ATS shall provide Diablo
with a final  accounting on or before the fifteenth (15th) day following the end
of the  Collection  Period.  Upon the request of either  party at and after such
time,  the  parties  shall  meet to  mutually  and in  good  faith  analyze  any
uncollected  Accounts  Receivable to determine if the same, in their  reasonable
business  judgment,  are deemed to be  collectable  and if ATS desires to retain
such Accounts Receivable. As to each such Accounts Receivable, the parties shall
negotiate a good faith value of such Accounts Receivable, which ATS shall pay to
Diablo  if  ATS,  in its  sole  discretion,  chooses  to  retain  such  Accounts
Receivable.  Diablo  shall  retain  the  right to  collect  any of its  Accounts
Receivable  as to which the parties are unable to reach  agreement  as to a good
faith value, and ATS agrees to turn over to Diablo any payments received against
any  such  Accounts   Receivable.   ATS  shall  not  be  obligated  to  use  any
extraordinary  efforts to collect any of the Accounts  Receivable assigned to it
for  collection  hereunder  or to refer  any of such  Accounts  Receivable  to a
collection agency or to any attorney for collection,  and ATS shall not make any
such  referral  or  compromise,  nor  settle  or adjust  the  amount of any such
Accounts Receivable, except with the approval of Diablo. ATS shall not incur any
liability to Diablo for any uncollected account unless ATS shall have

                                       -6-


<PAGE>



engaged in willful  misconduct  or gross  negligence in the  performance  of its
obligations set forth in this Section.  During and after the Collection  Period,
without  specific  agreement  with ATS to the contrary,  neither  Diablo nor its
agents  shall  make any  direct  solicitation  of the  Accounts  Receivable  for
collection purposes, except for Accounts Receivable retained by Diablo after the
Collection  Period.  The  provisions  of this  Section  shall not apply to those
certain  Accounts  Receivable set forth in Section 2.4 of the Diablo  Disclosure
Schedule or to any other Accounts  Receivable which Diablo, in its sole business
judgment,  determines will require extraordinary collection efforts or referrals
to a collection agency or attorney for collection  (collectively,  the "Retained
Accounts  Receivable"),  provided the Retained Accounts Receivable are set forth
in a written notice  delivered to ATS by Diablo on or prior to the Closing Date.
Diablo shall retain the sole and exclusive  right to collect,  whether during or
after the Collection Period, all Retained Accounts Receivable,  as Diablo in its
sole discretion may determine.

         2.5  Like-Kind  Exchanges.  Diablo  shall have the  right,  but not the
obligation, to effect the transfer and conveyance of the Diablo Assets, in whole
or in part,  as part of one or more  exchanges  under  Section 1031 of the Code,
including  the delay in  Closing  of  escrow  for those  Assets  subject  to the
exchange.  If Diablo so elects,  it shall provide  notice to ATS of its election
(the "Like-Kind  Notice"),  setting forth in reasonable  detail which portion or
portions of the Diablo  Assets are to be so treated.  In such event,  Diablo (i)
may at any time at or prior to Closing  assign its rights,  in whole or in part,
under  this  Agreement  with  respect  to such  Diablo  Assets  to a  "qualified
intermediary" as defined in Treas. Reg. ss.1.1031(k)-1(g)(4),  subject to all of
the rights and  obligations  hereunder of ATS, and (ii) shall  promptly  provide
written notice of such  assignment to ATS. No such  assignment  shall,  however,
relieve Diablo of its  obligations  under this  Agreement.  If Diablo shall have
given a Like-Kind  Notice,  ATS shall (i) promptly  provide  Diablo with written
acknowledgment  of such notice,  (ii) at the Closing,  convey the Purchase Price
for the Diablo Assets (or such portion of them as shall have been  designated in
writing by Diablo) to the "qualified  intermediary" rather than to Diablo (which
conveyance  shall,  to such extent,  discharge the  obligation of ATS to deliver
such  Purchase  Price (or portion  thereof),  and (iii) at the request of Diablo
extend the closing of escrow for all or a portion of those assets subject to the
Like-Kind Notice for a period not to exceed one year. Should the closing for any
Like-Kind Notice  properties be so extended,  Diablo and ATS shall enter into an
agreement  reasonably  acceptable to each party which  agreement  shall,  to the
maximum extent feasible,  provide ATS with the rights, benefits, and obligations
for any Like-Kind Notice property for which the closing is so extended.  Without
limiting the  generality of the  foregoing,  Diablo and ATS shall promptly after
receipt  by ATS of the  Like-Kind  Notice,  negotiate  in good faith in order to
determine the portion of the Purchase  Price  attributable  to the Diablo Assets
which are to be the  subject of  like-kind  exchange  and, in the event they are
unable to so agree on such amount,  it shall be  determined  by  arbitration  in
accordance  with the provisions of Section 9.15 and not materially  inconsistent
with the appraisal undertaken pursuant to Section 2.3. If such determination has
not been made on or prior to the Closing,  ATS shall  transfer to the "qualified
intermediary" the amount proposed by Diablo in the Like-Kind Notice,  subject to
an agreement by the "qualified  intermediary" to remit to Diablo the excess,  if
any, of the amount so transferred  over the amount as finally  determined by the
arbitrator.



                                    ARTICLE 3

                    REPRESENTATIONS AND WARRANTIES OF DIABLO

         Diablo hereby  represents,  warrants and covenants to, and agrees with,
ATS as follows:


                                       -7-


<PAGE>



         3.1  Organization  and  Business;   Power  and  Authority;   Effect  of
Transaction.

         (a) Diablo is a corporation  duly  organized,  validly  existing and in
good  standing  under  the laws of its  jurisdiction  of  organization,  has all
requisite  power and authority  (corporate and other) to own or hold under lease
its properties and to conduct its business as now conducted.

         (b) Diablo has all requisite  corporate  power and corporate  authority
and has in full force and effect all  Governmental  Authorizations  (which,  for
purposes of this Section  3.1(b),  relate only to the sale of the Diablo  Assets
and  Diablo  Business   generally  and  not  to   "site-specific"   Governmental
Authorizations   or  those  required  by  local   Applicable  Law)  and  Private
Authorizations,  except  for  those set forth in  Section  3.1(b) of the  Diablo
Disclosure  Schedule or those the failure of which to obtain do not and will not
have,  individually  or in the  aggregate,  any material  adverse effect on ATS,
necessary  to enable it to execute and deliver,  and to perform its  obligations
under,  this Agreement and each Collateral  Document  executed or required to be
executed by it pursuant hereto or thereto or to consummate the Transactions; and
the execution,  delivery and  performance of this Agreement and each  Collateral
Document  executed or  required to be executed by it pursuant  hereto or thereto
have been duly authorized by all requisite corporate or other action on the part
of Diablo.  This  Agreement  has been duly  executed and delivered by Diablo and
constitutes, and each Collateral Document executed or required to be executed by
it pursuant  hereto or thereto or to consummate the  Transactions  when executed
and delivered by Diablo will constitute, legal, valid and binding obligations of
Diablo,  enforceable in accordance with their respective  terms,  except as such
enforceability may be limited by bankruptcy,  moratorium, insolvency and similar
laws  affecting the rights and remedies of creditors and  obligations of debtors
generally and by general principles of equity.

         (c)  Except as set forth in  Section  3.1(c) of the  Diablo  Disclosure
Schedule,  and except for matters which would have no material adverse effect on
ATS,  neither the  execution  and  delivery by Diablo of this  Agreement  or any
Collateral Document executed or required to be executed by it pursuant hereto or
thereto, nor the consummation by Diablo of the Transactions, nor compliance with
the terms, conditions and provisions hereof or thereof by Diablo:

                  (i) will conflict with, or result in a breach or violation of,
         or constitute a default  under,  any Organic  Document of Diablo or any
         Applicable Law (which, for purposes of this Section 3.1(c)(i),  relates
         only to the sale of the Diablo Assets and the Diablo Business generally
         and not to  local  Applicable  Law)  on the  part  of  Diablo,  or will
         conflict  with,  or result in a breach or violation of, or constitute a
         default  under,  or  permit  the  acceleration  of  any  obligation  or
         liability in, or but for any requirement of giving of notice or passage
         of time or both  would  constitute  such a  conflict  with,  breach  or
         violation of, or default under, or permit any such acceleration in, any
         Contractual  Obligation of Diablo, other than those constituting Diablo
         Nonassumed Obligations; or

                  (ii) will  require  Diablo to make or obtain any  Governmental
         Authorization, Governmental Filing (which, for purposes of this Section
         3.1(c)(ii)),  relate  only to the sale of the Diablo  Assets and Diablo
         Business   generally   and   not   to   "site-specific"    Governmental
         Authorizations  or those required by local  Applicable  Law) or Private
         Authorization  including  without  limitation under the FCA, except for
         filings under the Hart-Scott-Rodino Act.

         (d)  Diablo  does not  have any  Subsidiaries  except  as set  forth in
Section 3.1(d) of the Diablo Disclosure Schedule.

         3.2 Financial and Other Information. Diablo has heretofore furnished to
ATS copies of the financial  statements of the Diablo Business listed in Section
3.2 of the Diablo Disclosure Schedule (the "Diablo Financial  Statements").  The
Diablo Financial Statements, including in each case the notes thereto,

                                       -8-


<PAGE>



have been  prepared  in  accordance  with CAAP  applied  on a  consistent  basis
throughout the periods covered thereby,  except as otherwise noted therein or as
set forth in Section 3.2 of the Diablo Disclosure  Schedule,  are true, accurate
and complete in all material respects,  do not contain any untrue statement of a
material  fact or omit to state a material  fact  required  by CAAP to be stated
therein or  necessary  in order to make the  statements  contained  therein  not
misleading,  and  fairly  present  the  financial  position  and the  results of
operations and cash flow of the Diablo Business, on the bases therein stated, as
of the respective dates thereof,  and for the respective periods covered thereby
subject, in the case of unaudited financial statements, to normal year-end audit
adjustments and accruals.

         3.3 Changes in Condition.  Since the date of the most recent  financial
statements constituting a part of the Diablo Financial Statements, except to the
extent specifically  described in Section 3.3 of the Diablo Disclosure Schedule,
there has been no material adverse change in Diablo.  There is no Event known to
Diablo  which  materially  adversely  affects,  or (so  far as  Diablo  can  now
reasonably foresee) is likely to materially adversely affect,  Diablo, except to
the  extent  specifically  described  in Section  3.3 of the  Diablo  Disclosure
Schedule.

         3.4  Materiality.  Other than those set forth in the Diablo  Disclosure
Schedule,  the representations and warranties set forth in this Article would in
the  aggregate be true and correct even without the  materiality  exceptions  or
qualifications  contained  therein.  Other  than  those set forth in the  Diablo
Disclosure Schedule,  in the aggregate all such exceptions and qualifications to
the  representations and warranties are not and could not reasonably be expected
to be materially adverse to Diablo.

         3.5      Title to Properties; Leases.

         (a) Section 3.5(a) of the Diablo  Disclosure  Schedule contains a true,
accurate and complete description of all real property owned or leased by Diablo
that is part of the Diablo Assets.  Except as set forth in Section 3.5(a) of the
Diablo  Disclosure  Schedule,  Diablo  has  good  indefeasible,  marketable  and
insurable  title to all real  property  (other than  leasehold  and managed real
property)  and good  indefeasible  and  merchantable  title to all other  assets
(other than real property), tangible and intangible,  constituting a part of the
Diablo  Assets,  in each case free and clear of all Liens,  except (i) Permitted
Liens, (ii) Liens set forth on Section 3.5(a) of the Diablo Disclosure  Schedule
and (iii) Approved Title Conditions.  Except for financing statements evidencing
Liens referred to in the preceding sentence (a true,  accurate and complete list
and description of which is set forth in Section 3.5(a) of the Diablo Disclosure
Schedule),  no financing  statements  under the Uniform  Commercial  Code and no
other  filing  which names Diablo as debtor or which covers or purports to cover
any of the  Diablo  Assets  is on file in any state or other  jurisdiction,  and
Diablo has not signed or agreed to sign any such  financing  statement or filing
or any  agreement  authorizing  any secured  party  thereunder  to file any such
financing  statement or filing.  Except as  disclosed  in Section  3.5(a) of the
Diablo Disclosure Schedule, to Diablo's knowledge,  all improvements on the real
property  owned or leased by Diablo are in compliance  with  applicable  zoning,
wetlands and land use laws,  ordinances and  regulations  and  applicable  title
covenants,  conditions,  restrictions and reservations in all respects necessary
to conduct the  operations as presently  conducted,  except for any instances of
non-compliance  which  do not and  will  not in the  aggregate  have a  material
adverse  effect  on the  owner  or  lessee,  as the case  may be,  of such  real
property.  Except  as  disclosed  in  Section  3.5(a) of the  Diablo  Disclosure
Statement, all such improvements,  to Diablo's knowledge, comply in all material
aspects  with all  Applicable  Laws,  Governmental  Authorizations  and  Private
Authorizations.  Except as disclosed in Section 3.5(a) of the Diablo  Disclosure
Statement,  to  Diablo's  knowledge,  all of  the  transmitting  towers,  ground
radials, guy anchors, transmitting buildings and related improvements located on
the real  property  owned or leased by Diablo are located  entirely on such real
property.  Diablo has no knowledge of any pending,  threatened  or  contemplated
action to take by eminent  domain or  otherwise  to condemn any part of any real
property owned or leased by Diablo. Except as set forth in Section 3.5(a) of the
Diablo Disclosure Schedule, such real property (other than land),

                                       -9-


<PAGE>



fixtures, fixed assets and other material items of personal property,  including
equipment,  have, in Diablo's reasonable business judgment, been maintained in a
manner  consistent  with  generally  accepted  standards  of  sound  engineering
practice and currently permit the Diablo Business to be operated in all material
respects in accordance  with the terms and  conditions of all  Applicable  Laws,
Governmental Authorizations and Private Authorizations.

         (b) Section 3.5(b) of the Diablo  Disclosure  Schedule contains a true,
accurate and complete  description  of all Leases under which any real  property
used in the Diablo Business is leased. Except as otherwise set forth in Schedule
3.5(b) of the Diablo Disclosure Schedule, each Lease or other occupancy or other
agreement under which Diablo holds real or personal property constituting a part
of the Diablo Assets has been duly authorized,  executed and delivered by Diablo
or its predecessors in interest, as the case may be, and, to Diablo's knowledge,
each of the other parties thereto,  and is a legal, valid and binding obligation
of Diablo,  and,  to  Diablo's  knowledge,  each of the other  parties  thereto,
enforceable in accordance with its terms,  except as such  enforceability may be
limited by  bankruptcy,  moratorium,  insolvency  and similar laws affecting the
rights and remedies of creditors  and  obligations  of debtors  generally and by
general  principles  of equity.  Diablo has a valid  leasehold  interest  in and
enjoys peaceful and undisturbed possession under all Leases pursuant to which it
holds any such real property or tangible personal  property.  All of such Leases
are valid and  subsisting  and in full force and effect;  neither Diablo nor, to
Diablo's  knowledge,  any other party  thereto,  is in  material  default in the
performance,  observance or fulfillment of any obligation, covenant or condition
contained in any such Lease. None of the fixed assets or equipment  comprising a
part of the Diablo  Assets is subject to contracts of sale,  and none is held by
Diablo as lessee or as  conditional  sales vendee under any Lease or conditional
sales contract and none is subject to any title retention  agreement,  except as
set forth in Section 3.5(b) of the Diablo Disclosure Schedule.

         (c) Section 3.5(c) of the Diablo  Disclosure  Schedule contains a true,
accurate  and complete  description  of all  material  items of Diablo  Personal
Property.  Diablo owns and has good and merchantable  title to all of the Diablo
Personal  Property  relating  to  the  Diablo  Business  (the  "Diablo  Personal
Property"),  in each  case,  free and clear of all Liens,  except (i)  Permitted
Liens and (ii)  Liens  set forth on  Section  3.5(c)  of the  Diablo  Disclosure
Schedule  (which Liens shall be released prior to Closing).  Except as set forth
in Section 3.5(c) of the Diablo Disclosure Schedule,  all of the Diablo Personal
Property is in a state of good repair and  maintenance  and is in good operating
condition,  normal  wear and tear  excepted,  has  been  maintained  in a manner
consistent with generally  accepted  standards of good engineering  practice and
currently  permits the Diablo  Business to be  operated in  accordance  with the
terms and conditions of all  Applicable  Laws.  Except for financing  statements
listed in  Section  3.5(c)  of the  Diablo  Disclosure  Schedule,  no  financing
statements  under the Uniform  Commercial  Code and no other  filing which names
Diablo as debtor or which  covers or purports to cover any of the Diablo  Assets
is on file in any state or other  jurisdiction,  and  Diablo  has not  signed or
agreed  to  sign  any  such  financing  statement  or  filing  or any  agreement
authorizing any secured party thereunder to file any such financing statement or
filing.

         3.6 Compliance with Private  Authorizations.  Section 3.6 of the Diablo
Disclosure   Schedule  sets  forth  a  true,  accurate  and  complete  list  and
description of each Private  Authorization which individually is material to the
Diablo Assets or the Diablo Business. To Diablo's knowledge, and as set forth in
Section 3.6 of the Diablo Disclosure  Schedule,  Diablo has obtained all Private
Authorizations  which are necessary for the ownership or operation of the Diablo
Assets  or the  conduct  of the  Diablo  Business  which,  if not  obtained  and
maintained, could, individually or in the aggregate, materially adversely affect
Diablo.  All of such Private  Authorizations  are valid and in good standing and
are in full force and  effect.  Diablo is not in breach or  violation  of, or in
default in the  performance,  observance  or  fulfillment  of, any such  Private
Authorization,  and no Event exists or has occurred,  which constitutes,  or but
for any  requirement  of  giving  of notice  or  passage  of time or both  would
constitute,  such a  breach,  violation  or  default,  under  any  such  Private
Authorization,  except for such  defaults,  breaches or violations as do not and
will not have in the aggregate

                                      -10-


<PAGE>



any material  adverse  effect on Diablo.  No such Private  Authorization  is the
subject of any pending or, to Diablo's knowledge,  threatened attack, revocation
or termination.

         3.7 Compliance with Governmental Authorizations and Applicable Law.

         (a) To  Diablo's  knowledge,  Section  3.7(a) of the Diablo  Disclosure
Schedule contains a true, complete and accurate description of each Governmental
Authorization  required under  Applicable Laws (i) to own and operate the Diablo
Business,  as currently conducted or proposed to be conducted on or prior to the
Closing  Date,  all of  which  are in full  force  and  effect  or (ii)  that is
necessary to permit Diablo to execute and deliver this  Agreement and to perform
its obligations hereunder. To Diablo's knowledge,  except as otherwise set forth
in Section  3.7(a) of the Diablo  Disclosure  Schedule,  Diablo has obtained all
Governmental  Authorizations  which are necessary for the ownership or operation
of the Diablo Assets or the conduct of the Diablo  Business as now conducted and
which, if not obtained and maintained,  would, individually or in the aggregate,
have  any  material   adverse  effect  on  Diablo.   None  of  the  Governmental
Authorizations  listed in Section  3.7(a) of the Diablo  Disclosure  Schedule is
subject to any  restriction  or  condition  which  would  limit in any  material
respect the  ownership or  operations of the Diablo Assets or the conduct of the
Diablo Business as currently  conducted,  except for restrictions and conditions
generally   applicable  to  Governmental   Authorizations   of  such  type.  The
Governmental  Authorizations  listed in Section 3.7(a) of the Diablo  Disclosure
Schedule  are valid and in good  standing,  are in full force and effect and are
not  impaired  in any  material  respect by any act or omission of Diablo or its
officers, directors,  employees or agents, and the ownership or operation of the
Diablo  Assets or the conduct of the Diablo  Business are in  accordance  in all
material respects with the Governmental  Authorizations.  To Diablo's knowledge,
all material reports,  forms and statements  required to be filed by Diablo with
all  Authorities  with  respect to the Diablo  Business  have been filed and are
true,  complete  and  accurate in all material  respects.  No such  Governmental
Authorization  is  the  subject  of  any  pending  or,  to  Diablo's  knowledge,
threatened  challenge or proceeding to revoke or terminate any such Governmental
Authorization.  Diablo  has no  reason  to  believe  that any such  Governmental
Authorization  would  not be  renewed  in the  name of  Diablo  by the  granting
Authority in the ordinary course.


         (b) Except as otherwise specifically described in Section 3.7(b) of the
Diablo Disclosure  Schedule,  neither Diablo nor any director or officer thereof
(in  connection  with ownership or operation of the Diablo Assets or the conduct
of the  Diablo  Business)  is in or is  charged  by any  Authority  with or,  to
Diablo's  knowledge,  at any time since  January 1, 1993 has been in or has been
charged by any Authority with, or, to Diablo's knowledge, is threatened or under
investigation  by any  Authority  with respect to,  breach or  violation  of, or
default in the  performance,  observance  or  fulfillment  of, any  Governmental
Authorization  or any  Applicable Law relating to the ownership and operation of
the Diablo  Assets or the conduct of the Diablo  Business.  In  particular,  but
without  limiting the  generality of the foregoing,  there are no  applications,
complaints or Legal Actions pending or, to Diablo's knowledge, threatened before
or by any  Authority  (x)  relating to the  ownership or operation of the Diablo
Assets or the  conduct  of the Diablo  Business  which,  individually  or in the
aggregate,  are reasonably  likely to result in the revocation or termination of
any  Governmental  Authorization  or the imposition of any restriction of such a
nature as would  adversely  affect the  ownership  or  operations  of the Diablo
Business;  (y) involving  charges of illegal  discrimination by Diablo under any
federal or state employment Laws, or (z) involving  Environmental Laws or zoning
laws, except as otherwise specifically described in Section 3.7(b) of the Diablo
Disclosure Schedule.

         (c) Except as otherwise specifically described in Section 3.7(c) of the
Diablo Disclosure Schedule, no Event exists or has occurred,  which, to Diablo's
knowledge,  constitutes,  or but for any  requirement  of  giving  of  notice or
passage of time or both would constitute,  such a breach,  violation or default,
under (i) any Governmental  Authorization or any Applicable Law, except for such
breaches, violations or defaults as do not and will not have, individually or in
the aggregate, any material adverse effect

                                      -11-


<PAGE>



on Diablo or (ii) any material requirement of any insurance carrier,  applicable
to the ownership or operations of the Diablo Assets or the conduct of the Diablo
Business.

         (d) With respect to matters, if any, of a nature referred to in Section
3.7(a), 3.7(b) or 3.7(c) of the Diablo Disclosure Schedule,  except as otherwise
specifically  described in Section 3.7(d) of the Diablo Disclosure Schedule, all
such information and matters set forth in Sections 3.7(a),  3.7(b) and 3.7(c) of
the Diablo Disclosure  Schedule,  if adversely  determined against Diablo,  will
not,  individually or in the aggregate,  have a materially  adversely  effect on
Diablo.

         3.8 Intangible  Assets.  Section 3.8 of the Diablo Disclosure  Schedule
sets forth a true,  accurate and complete  description of all Intangible  Assets
(other than Governmental  Authorizations and Private Authorizations) relating to
the  ownership  and  operation of the Diablo Assets or the conduct of the Diablo
Business  held or used by Diablo,  including  without  limitation  the nature of
Diablo's  interest  in each and the  extent  to which  the same  have  been duly
registered in the offices as indicated  therein.  Except as set forth in Section
3.8 of the Diablo  Disclosure  Schedule,  to Diablo's  knowledge,  no Intangible
Assets (except  Governmental  Authorizations,  Private  Authorizations,  and the
Intangible  Assets so set forth) are required for the  ownership or operation of
the Diablo  Assets or the  conduct of the Diablo  Business as  currently  owned,
operated  and  conducted or proposed to be owned,  operated and  conducted on or
prior to the Closing Date.  To Diablo's  knowledge,  Diablo does not  wrongfully
infringe  upon or  unlawfully  use any  Intangible  Assets  owned or  claimed by
another,  and Diablo has not  received  any notice of any claim or  infringement
relating to any such Intangible Asset.

         3.9  Related  Transactions.  Diablo  is not a party or  subject  to any
Contractual  Obligation  relating to the  ownership  or  operation of the Diablo
Assets or the  conduct  of the  Diablo  Business  between  Diablo and any of its
officers, directors, shareholders, employees or, to the knowledge of Diablo, any
Affiliate  of  any  thereof,   including  without   limitation  any  Contractual
Obligation  providing  for the  furnishing  of services to or by,  providing for
rental of property,  real,  personal or mixed,  to or from, or providing for the
lending or borrowing of money to or from or otherwise  requiring  payments to or
from,  any  such  Person,  other  than (i)  Employment  Arrangements  listed  or
described in Section 3.15 of the Diablo  Disclosure  Schedule,  (ii) Contractual
Obligations  between  Diablo and any of its directors,  shareholders,  officers,
employees or  Affiliates  of Diablo or any of the  foregoing,  which  constitute
Excluded Assets or Diablo Nonassumed  Obligations,  or (iii) as specifically set
forth in Section 3.9 of the Diablo Disclosure Schedule.

         3.10 Insurance. Diablo maintains, with respect to the Diablo Assets and
the Diablo  Business,  policies  of fire and  extended  coverage  and  casualty,
liability  and other forms of  insurance  in such amounts and against such risks
and losses as are set forth in Section 3.10 of the Diablo Disclosure Schedule.

         3.11     Tax Matters.

         (a)  Except as set forth in Section  3.11(a)  of the Diablo  Disclosure
Schedule,  Diablo  has in  accordance  with all  Applicable  Laws  filed all Tax
Returns which are required to be filed,  except with respect to failures to file
which in the aggregate  would not have a material  adverse effect on Diablo and,
to Diablo's knowledge,  has paid, or made adequate provision for the payment of,
all Taxes which have or may become due and payable  pursuant to said Tax Returns
and all other governmental  charges and assessments  received to date other than
those Taxes being contested in good faith for which adequate  provision has been
made  on the  most  recent  balance  sheet  forming  part  of  Diablo  Financial
Statements. The Tax Returns of Diablo have, to Diablo's knowledge, been prepared
in all material  respects in accordance  with all Applicable  Laws and generally
accepted principles applicable to taxation consistently applied. All Taxes which
Diablo is required by law to withhold and collect have,  to Diablo's  knowledge,
been duly withheld and  collected,  and have been paid over, in a timely manner,
to the proper Authorities to the extent due and payable. Diablo has not

                                      -12-


<PAGE>



executed any waiver to extend,  or otherwise  taken or failed to take any action
that would have the effect of extending,  the applicable  statute of limitations
in respect of any Tax  liabilities  of Diablo for the fiscal  years prior to and
including  the most recent  fiscal  year.  Adequate  provision  has, to Diablo's
knowledge,  been made on the most recent  balance  sheet  forming part of Diablo
Financial  Statements  for all Taxes  accrued  through the date of such  balance
sheet of any kind, including interest and penalties in respect thereof,  whether
disputed or not, and whether  past,  current or deferred,  accrued or unaccrued,
fixed,  contingent,  absolute or other, and there are, to Diablo's knowledge, no
past  transactions  or  matters  which  could  result in  additional  Taxes of a
material nature to Diablo for which an adequate reserve has not been provided on
such balance sheet. Diablo is not a "consenting  corporation" within the meaning
of  Section  341(f)  of the Code.  Diablo  has at all times  been  taxable  as a
Subchapter  S  corporation  under the Code,  and has never  been a member of any
consolidated  group for Tax  purposes,  except as otherwise set forth in Section
3.11(a) of the Diablo Disclosure Schedule.

         (b) The  information  shown on the federal income Tax Returns of Diablo
for each of the most recent five tax years  (true and  complete  copies of which
have, to the extent  requested by ATS,  been  furnished by Diablo to ATS) is, to
Diablo's  knowledge,  true,  accurate and complete in all material  respects and
fairly and accurately  reflects the information  purported to be shown.  Federal
and state  income Tax  Returns of Diablo  have not been  examined  by the IRS or
applicable  state  Authority,  and Diablo has not been  notified of any proposed
examination,  except  as shown  in  Section  3.11(b)  of the  Diablo  Disclosure
Schedule.

         (c) Diablo is not a party to any tax sharing  agreement or arrangement,
other than those contained in certain of its leases.

         3.12     Employee Retirement Income Security Act of 1974.

         (a) Diablo  (which for purposes of this Section shall include any ERISA
Affiliate) is not making any  contribution to or sponsoring,  and has not at any
time since its organization  made any contribution to or sponsored,  any Plan or
Benefit  Arrangement,  except  as set forth in  Section  3.12(a)  of the  Diablo
Disclosure Schedule.  As to all Plans and Benefit Arrangements listed in Section
3.12(a) of the Diablo Disclosure Schedule:

                  (i) all such Plans and  Benefit  Arrangements  comply and have
         been  administered in form and in operation with all Applicable Laws in
         all material respects,  and Diablo has not received any notice from any
         Authority questioning or challenging such compliance;

                  (ii) all such Plans  maintained  or  previously  maintained by
         Diablo that are or were intended to comply with Sections 401 and 501 of
         the  Code  comply  and  complied  in form  and in  operation  with  all
         applicable  requirements  of such  sections,  and no event has occurred
         which  will or could  give  rise to  disqualification  of any such Plan
         under such sections or to a tax under Section 511 of the Code;

                  (iii)  none of the  assets  of any such Plan are  invested  in
         employer securities or employer real property;

                  (iv)  there  have  been  no  "prohibited   transactions"   (as
         described  in Section  406 of ERISA or  Section  4975 of the Code) with
         respect to any such Plan and Diablo  has not  otherwise  engaged in any
         prohibited transaction;

                  (v) there have been no acts or  omissions by Diablo which have
         given rise to or may give rise to any material fines, penalties,  taxes
         or related  charges under Sections  502(c),  502(i) or 4071 or ERISA or
         Chapter 43 of the Code for which Diablo may be liable;

                                      -13-


<PAGE>




                  (vi)  there are no  Claims  (other  than  routine  claims  for
         benefits  or  actions  seeking  qualified  domestic  relations  orders)
         pending or threatened involving such Plans or the assets of such Plans,
         and, to Diablo's knowledge, no facts exist which could give rise to any
         such Claims (other than routine claims for benefits or actions  seeking
         qualified domestic relations orders);

                  (vii) no such Plan is  subject  to Title IV of  ERISA,  or, if
         subject,  there have been no "report  able  events"  (as  described  in
         Section 4043 of ERISA),  and no steps have been taken to terminate  any
         such Plan;

                  (viii) all group health Plans of Diablo have been  operated in
         compliance  in  all  material  respects  with  the  group  health  plan
         continuation coverage requirements of COBRA;

                  (ix) actuarially  adequate  accruals for all obligations under
         the Plans are  reflected in the most recent  balance sheet forming part
         of the Diablo Financial  Statements and such obligations  include a pro
         rata amount of the  contributions  which would otherwise have been made
         in accordance  with past practices for the Plan years which include the
         Closing Date;

                  (x)  neither  Diablo  nor  any  of its  respective  directors,
         officers,  employees or any other fiduciary has committed any breach of
         fiduciary responsibility imposed by ERISA or any similar Applicable Law
         that would subject Diablo or any of its respective directors,  officers
         or  employees  to  material   liability  under  ERISA  or  any  similar
         Applicable Law;

                  (xi) no such Plan which is subject to Part 3 of  Subtitle B of
         Title I of ERISA or Section 412 of the Code had an accumulated  funding
         deficiency  (as  defined in Section 302 of ERISA and Section 412 of the
         Code),  whether or not  waived,  as of the last day of the most  recent
         fiscal  year of such Plan to which  Part 3 of  Subtitle B of Title I of
         ERISA  or  Section  412 of the  Code  applied,  nor  would  have had an
         accumulated funding deficiency on such date if such year were the first
         year of such Plan to which Part 3 of  Subtitle B of Title I of ERISA or
         Section 412 of the Code applied;

                  (xii)  no  material  liability  to the  PBGC  has  been  or is
         expected by Diablo to be  incurred by Diablo with  respect to any Plan,
         and there has been no event or condition which presents a material risk
         of termination of any Plan by the PBGC;

                  (xiii) except as set forth in Section 3.12(xiii) of the Diablo
         Disclosure  Schedule,  Diablo  is not and never has been a party to any
         Multiemployer Plan or made contributions to any such Plan;

                  (xiv)  except  as set  forth in  Section  3.12(a)(xiv)  of the
         Diablo Disclosure Schedule (which entry, if applicable,  shall indicate
         the present  value of  accumulated  plan  liabilities  calculated  in a
         manner  consistent  with FAS 106 and  actual  annual  expense  for such
         benefits  for each of the  last  two (2)  years)  and  pursuant  to the
         provisions  of COBRA,  Diablo does not maintain any Plan that  provides
         benefits  described in Section 3(1) of ERISA,  except as the provisions
         of COBRA may apply, to any former employees or retirees of Diablo; and

                  (xv) Diablo has made  available  to ATS a copy of the two most
         recently filed Federal Form 5500 series and  accountant's  opinion,  if
         applicable,  for each Plan (and the two most recent actuarial valuation
         reports for each Plan,  if any,  that is subject to Title IV of ERISA),
         and all  information  provided by Diablo to any  actuary in  connection
         with the preparation of any such actuarial  valuation  report was true,
         accurate and complete in all material respects.


                                      -14-


<PAGE>



         (b) The execution, delivery and performance by Diablo of this Agreement
and the Collateral Documents executed or required to be executed pursuant hereto
and thereto will not involve any  prohibited  transaction  within the meaning of
ERISA or Section 4975 of the Code.

         3.13 Absence of  Sensitive  Payments.  Neither  Diablo nor, to Diablo's
knowledge,  any  of  its  officers,   directors,   employees,  agents  or  other
representatives,  has with respect to the Diablo  Assets or the Diablo  Business
(a) made any  contributions,  payments or gifts to or for the private use of any
governmental official, employee or agent where either the payment or the purpose
of such  contribution,  payment or gift is illegal  under the laws of the United
States or the  jurisdiction  in which made or (b)  established or maintained any
unrecorded fund or asset for any purpose or made any false or artificial entries
on its books.

         3.14  Inapplicability of Specified  Statutes.  Diablo is not a "holding
company", or a "subsidiary company" or an "affiliate" of a "holding company", as
such terms are defined in the Public  Utility  Holding  Company Act of 1935,  as
amended,  or an "investment  company" or a company  "controlled" by or acting on
behalf of an "investment  company",  as defined in the Investment Company Act of
1940, as amended, or a "carrier" or a person which is in control of a "carrier",
as defined in section 11301 of Title 49, U.S.C.

         3.15  Employment  Arrangements.  Section 3.15 of the Diablo  Disclosure
Schedule  contains a true,  accurate and complete  list of all Diablo  employees
involved in the  ownership or  operation of the Diablo  Assets or the conduct of
the Diablo Business (the "Diablo Employees"), together with each such employee's
title or the capacity in which he or she is employed and the basis for each such
employee's  compensation.  Diablo has no obligation or liability,  contingent or
other,  under any Employment  Arrangement with any Diablo  Employee,  other than
those listed or described  in Section  3.15 of the Diablo  Disclosure  Schedule.
Except as described in Section 3.15 of the Diablo Disclosure Schedule,  (i) none
of the Diablo  Employees is now,  or, to Diablo's  knowledge,  since  January 1,
1993,  has been,  represented  by any labor union or other  employee  collective
bargaining  organization,  and Diablo is not, and has never been, a party to any
labor or other collective bargaining agreement with respect to any of the Diablo
Employees, (ii) there are no pending grievances,  disputes or controversies with
any union or any other employee or collective  bargaining  organization  of such
employees,  or threats of strikes,  work  stoppages  or slowdowns or any pending
demands for collective bargaining by any such union or other organization, (iii)
neither Diablo nor any of such employees is now, or, to Diablo's knowledge,  has
since January 1, 1993 been, subject to or involved in or, to Diablo's knowledge,
threatened   with,   any  union   elections,   petitions   therefore   or  other
organizational or recruiting activities, in each case with respect to the Diablo
Employees and (iv) none of the Diablo  Employees has notified  Diablo in writing
that he or she does not intend to  continue  employment  with  Diablo  until the
Closing or with ATS following the Closing.  Diablo has performed in all material
respects  all  obligations   required  to  be  performed  under  all  Employment
Arrangements  and is not in  material  breach  or  violation  of or in  material
default or arrears under any of the terms, provisions or conditions thereof.

         3.16  Material  Agreements.  Listed  on  Section  3.16  of  the  Diablo
Disclosure  Schedule are all Material  Agreements  relating to the  ownership or
operation  of the Diablo  Assets or the  conduct of the  business  of the Diablo
Business  or to which  Diablo is a party or to which it is bound or which any of
the Diablo Assets is subject. True, accurate and complete copies of each of such
Material  Agreements have been provided by Diablo to ATS to the extent requested
by ATS (or true, accurate and complete  descriptions thereof have been set forth
in Section  3.16 of the Diablo  Disclosure  Schedule,  with  respect to Material
Agreements that are oral).  All of such Material  Agreements are valid,  binding
and legally enforceable  obligations of Diablo and, to Diablo's  knowledge,  all
other  parties  thereto,  except  as  such  enforceability  may  be  limited  by
bankruptcy,  moratorium,  insolvency  and similar laws  affecting the rights and
remedies  of  creditors  and  obligations  of debtors  generally  and by general
principles of equity.  Diablo has duly  complied with all of the material  terms
and conditions of each such Material Agreement and has not done or performed, or
failed to do or perform (and there is no pending or, to the knowledge of Diablo,
Claim threatened in writing

                                      -15-


<PAGE>



that Diablo has not so complied, done and performed or failed to do and perform)
any act which would invalidate or provide grounds for the other party thereto to
terminate  (with or  without  notice,  passage  of time or both)  such  Material
Agreement  or impair the rights or benefits,  or increase  the costs,  of Diablo
under any of such Material Agreements in any material respect.

         3.17  Ordinary  Course  of  Business.  From the end of its most  recent
fiscal  quarter to the date  hereof,  except (i) as may be  described on Section
3.17 of the Diablo Disclosure Schedule,  or (ii) as may be required or expressly
contemplated by the terms of this Agreement or the Letter of Intent,  Diablo has
operated the Diablo Business in all material  respects in the normal,  usual and
customary manner in the ordinary and regular course of business, consistent with
prior  practice,  and,  except in each case in the ordinary  course of business,
consistent with prior practice,

                  (a) has not  incurred  any  obligation  or  liability  (fixed,
         contingent or other) individually having a value in excess of $20,000;

                  (b) has not sold or  otherwise  disposed of or  contracted  to
         sell or otherwise  dispose of any of its  properties or assets having a
         value in excess of $20,000;

                  (c) has not entered into any  individual  commitment  having a
         value in excess of $20,000;

                  (d) has not canceled any debts or claims;

                  (e) has not created or permitted to be created any Lien on any
         of its property;

                  (f) has not made or  committed  to make any  additions  to its
         property or any purchases of equipment,  except in the ordinary  course
         of business consistent with past practice or for normal maintenance and
         replacements;

                  (g) has not  increased the  compensation  payable or to become
         payable  to any of the  Diablo  Employees  other  than in the  ordinary
         course of business or otherwise materially altered, modified or changed
         the terms of their employment;

                  (h) has not suffered any material damage,  destruction or loss
         (whether or not covered by insurance) or any  acquisition  or taking of
         property by any Authority;

                  (i) has not waived any rights of material  value  without fair
         and adequate consideration;

                  (j) has not experienced any work stoppage;

                  (k) has not entered  into,  amended or  terminated  any Lease,
         Governmental Authorization,  Private Authorization,  Material Agreement
         or Employment Arrangement, or any transaction, agreement or arrangement
         with any Affiliate of Diablo, except for Diablo Nonassumed Obligations;
         and

                  (l) has not entered  into any other  transaction  or series of
         related transactions which individually or in the aggregate is material
         to the Diablo Assets or the Diablo Business.

         3.18 Material and Adverse Restrictions.  To Diablo's knowledge,  Diablo
is not a party to or subject  to, nor are any of the Diablo  Assets  subject to,
any  Applicable  Law,  Governmental   Authorization,   Contractual   Obligation,
Employment Arrangement, Material Agreement or Private Authorization, or any

                                      -16-


<PAGE>



other  obligation or restriction of any kind or character,  which now has or, as
far  as  Diablo  can  now  reasonably  foresee,  at  any  time  in  the  future,
individually or in the aggregate, is likely to have, any material adverse effect
on  Diablo,  except  as set  forth  in  Section  3.18 of the  Diablo  Disclosure
Schedule.

         3.19  Broker or Finder.  No Person  assisted  in or  brought  about the
negotiation  of this  Agreement or the  Transactions  in the capacity of broker,
agent or finder or in any similar capacity on behalf of Diablo.

         3.20  Solvency.  As of the  execution  and delivery of this  Agreement,
Diablo is, and immediately  prior to and after giving effect to the consummation
of the Transactions will be, solvent.

         3.21 Environmental Matters.  Except as set forth in Section 3.21 of the
Diablo Disclosure Schedule, with respect to the Diablo Assets, Diablo:

                  (a) has not been notified that it is potentially liable under,
         has not received any request for  information  or other  correspondence
         concerning its potential liability with respect to any site or facility
         under, and, to Diablo's  knowledge,  is not a "potentially  responsible
         party" under, the Comprehensive  Environmental  Response,  Compensation
         and  Liability  Act of 1980,  as  amended,  the  Resource  Conservation
         Recovery Act, as amended, or any similar state law;

                  (b) has not  entered  into or  received  any  consent  decree,
         compliance  order  or  administrative  order  issued  pursuant  to  any
         Environmental Law;

                  (c) is  not a  party  in  interest  or in  default  under  any
         judgment,  order, writ,  injunction or decree of any final order issued
         pursuant to any Environmental Law;

                  (d) is, to the  knowledge  of  Diablo,  in  compliance  in all
         material  respects  with  all  Environmental  Laws,  has,  to  Diablo's
         knowledge,   obtained  all   Environmental   Permits   required   under
         Environmental  Laws,  and  is  not  the  subject  of  or,  to  Diablo's
         knowledge,  threatened  with any Legal  Action  involving  a demand for
         damages or other potential liability including any Lien with respect to
         material violations or material breaches of any Environmental Law; and

                  (e) has no knowledge of any past or present  Event  related to
         the Diablo  Business or the Diablo Assets which Event,  individually or
         in the aggregate,  will interfere  with or prevent  continued  material
         compliance with all  Environmental  Laws, or which,  individually or in
         the  aggregate,  will  form the  basis of any  material  Claim  for the
         release or threatened  release into the  environment,  of any Hazardous
         Material.


                                    ARTICLE 4

                      REPRESENTATIONS AND WARRANTIES OF ATS

         ATS represents,  warrants and covenants to, and agrees with,  Diablo as
follows:

         4.1  Organization  and  Business;   Power  and  Authority;   Effect  of
Transaction.

         (a) ATS is a corporation  duly organized,  validly existing and in good
standing  under  the  laws  of its  jurisdiction  of  incorporation  and has all
requisite  power and authority  (corporate and other) to own or hold under lease
its properties and to conduct its business as now conducted.


                                      -17-


<PAGE>



         (b) ATS has all  requisite  corporate  power  and  corporate  authority
necessary  to enable it to execute and deliver,  and to perform its  obligations
under,  this Agreement and each Collateral  Document  executed or required to be
executed by it pursuant hereto or thereto or to consummate the Transactions; and
the execution,  delivery and  performance of this Agreement and each  Collateral
Document  executed or  required to be executed by it pursuant  hereto or thereto
have been duly authorized by all requisite corporate or other action on the part
of  ATS.  This  Agreement  has  been  duly  executed  and  delivered  by ATS and
constitutes, and each Collateral Document executed or required to be executed by
it pursuant  hereto or thereto or to consummate the  Transactions  when executed
and delivered by ATS will constitute,  legal,  valid and binding  obligations of
ATS,  enforceable  in accordance  with their  respective  terms,  except as such
enforceability may be limited by bankruptcy,  moratorium, insolvency and similar
laws  affecting  the rights and remedies of  creditors  and the  obligations  of
debtors generally and by general principles of equity.

         (c) Except for matters which would not have any material adverse effect
on ATS,  neither the  execution  and  delivery by ATS of this  Agreement  or any
Collateral Document executed or required to be executed by it pursuant hereto or
thereto,  nor the consummation by ATS of the  Transactions,  nor compliance with
the terms, conditions and provisions hereof or thereof by ATS:

                  (i) will conflict with, or result in a breach or violation of,
         or  constitute  a default  under,  any  Organic  Document of ATS or any
         Applicable  Law on the part of ATS, or will conflict with, or result in
         a breach or violation of, or constitute a default under,  or permit the
         acceleration  of  any  obligation  or  liability  in,  or but  for  any
         requirement  of  giving  of notice  or  passage  of time or both  would
         constitute  such a conflict  with,  breach or violation  of, or default
         under, or permit any such  acceleration in, any Contractual  Obligation
         of ATS; or

                  (ii)  will  require  ATS to make or  obtain  any  Governmental
         Authorization,  Governmental Filing or Private Authorization  including
         without  limitation  under  the  FCA,  except  for  filings  under  the
         Hart-Scott-Rodino Act.

         4.2  Broker or  Finder.  No Person  assisted  in or  brought  about the
negotiation  of this  Agreement or the  Transactions  in the capacity of broker,
agent or finder or in any similar capacity on behalf of ATS.

         4.3 Solvency.  As of the execution and delivery of this Agreement,  ATS
is, and immediately  prior to and after giving effect to the consummation of the
Transactions will be, solvent.

         4.4 No Legal  Action.  There are no Legal  Actions  pending  or, to the
knowledge  of ATS,  threatened  against ATS or any of its  Affiliated  Entities,
officers  or  directors,  that  question  or may  affect  the  validity  of this
Agreement  or the  right  of ATS to  consummate  the  transactions  contemplated
hereunder.


                                    ARTICLE 5

                                    COVENANTS

         5.1      Access to Information; Confidentiality.

         (a) Diablo shall afford to ATS and its accountants,  counsel,  lenders,
financial advisors and other representatives (the "Representatives") full access
during normal business hours  throughout the period prior to the Closing Date to
all of Diablo's properties, books, contracts, commitments and records (including
without  limitation  Tax Returns)  relating to the Diablo  Assets and the Diablo
Business and, during such period, shall furnish promptly upon request (i) a list
(and copies to the extent requested by ATS) of each

                                      -18-


<PAGE>



report,  schedule and other document filed or received by Diablo pursuant to the
requirements  of any  Applicable  Law or  filed  by it  with  any  Authority  in
connection with the  Transactions or which may have a material adverse effect on
the  Diablo  Assets  or  the  Diablo  Business  or the  businesses,  operations,
properties,  prospects, personnel, condition (financial or other), or results of
operations  thereof,  (ii)  to the  extent  not  provided  for  pursuant  to the
preceding clause, all financial records,  ledgers, work papers and other sources
of financial  information  possessed and controlled by Diablo or its accountants
reasonably  deemed by ATS or its  Representatives  necessary  or useful  for the
purpose of performing an audit of the Diablo Assets and the Diablo  Business and
certifying financial statements and financial information,  and (iii) such other
information in the possession or control of Diablo or its accountants concerning
any of the foregoing as ATS shall reasonably request;  provided,  however,  that
Diablo  shall not be required to permit any such access to the extent same would
unreasonably interfere with Diablo's normal business operations.  All non-public
information relating to the Diablo Assets or the Diablo Business furnished prior
to the execution,  or pursuant to the provisions,  of this Agreement,  including
without  limitation  this  Section,  will be kept  confidential  and shall  not,
without the prior written  consent of Diablo,  be disclosed by ATS in any manner
whatsoever,  in whole or in part, and shall not be used for any purposes,  other
than in connection  with the  Transactions.  In no event shall ATS or any of its
Representatives  use such information to the detriment of Diablo.  ATS agrees to
reveal such  information only to those of its  Representatives  or other Persons
who  need  to  know  such   information   for  the  purpose  of  evaluating  the
Transactions,  who are informed of the  confidential  nature of such information
and who shall  undertake to act in accordance  with the terms and  conditions of
this Agreement.  From and after the Closing, Diablo shall not, without the prior
written  consent of ATS,  disclose any  information  remaining in its possession
with  respect  to  the  Diablo  Assets  or the  Diablo  Business,  and  no  such
information  shall be used for any purposes,  other than in connection  with the
Transactions or to the extent required by Applicable Law.

         (b) Subject to the terms and  conditions  of Section  5.1(a),  ATS may,
subject to prior  consultation with Diablo,  disclose such information as may be
necessary in connection with seeking all Governmental and Private Authorizations
or that is required by Applicable  Law to be  disclosed.  In the event that this
Agreement  is  terminated  for any  reason,  ATS shall  promptly  redeliver  all
non-public  written  material  provided  pursuant  to this  Section or any other
provision of this Agreement or otherwise in connection with the Transactions and
shall not retain any copies, extracts or other reproductions in whole or in part
of such written  material,  other than one copy thereof which shall be delivered
to independent  counsel for ATS (which  independent  counsel shall be subject to
the provisions of Section 5.1(a)), and ATS shall so certify to such effect.

         (c)  Anything in this  Section or  elsewhere  in this  Agreement to the
contrary  notwithstanding,  either  party may disclose  information  received or
retained by it in accordance  with the  provisions  of this  Agreement if it can
demonstrate  (i) such  information  is  generally  available  to or known by the
public from a source other than the party seeking to disclose  such  information
or (ii) was obtained by the party  seeking to disclose such  information  from a
source other than the other party,  provided that such source was not bound by a
duty of confidentiality to the other party or another party with respect to such
information.

         5.2      Agreement to Cooperate.

         (a) Each of the parties  hereto shall use reasonable  business  efforts
(x) to take,  or cause to be taken,  all actions and to do, or cause to be done,
all things necessary, proper or advisable under Applicable Law to consummate the
Transactions,  and (y) to refrain from taking,  or cause to be taken, any action
and to refrain from doing or causing to be done, any thing which could impede or
impair the consummation of the Transactions,  including,  in all cases,  without
limitation  using its reasonable  business  efforts (i) to prepare and file with
the applicable  Authorities  as promptly as  practicable  after the execution of
this Agreement all requisite applications and amendments thereto,  together with
related information,  data and exhibits, necessary to request issuance of orders
approving the Transactions by all such applicable Authorities, each of which

                                      -19-


<PAGE>



must be obtained or become final to the extent provided in Section 6.1(a),  (ii)
to  obtain  all  necessary  or  appropriate  waivers,  consents  and  approvals,
including  without  limitation  those  referred  to in Section  6.2(d),  without
payment of any material  amount of  compensation,  (iii) to effect all necessary
registrations,  filings and submissions  (including  without  limitation filings
under the  Hart-Scott-Rodino  Act and all filings  necessary  for ATS to own and
operate the Diablo  Assets and conduct  the Diablo  Business),  (iv) to lift any
injunction or other legal bar to the Transactions (and, in such case, to proceed
with the  Transactions  as  expeditiously  as  possible),  and (v) to obtain the
satisfaction  of the  conditions  specified  in  Article  6,  including  without
limitation the truth and correctness as of the Closing Date as if made on and as
of the Closing Date of the  representations and warranties of such party and the
performance  and  satisfaction  as of the  Closing  Date of all  agreements  and
conditions to be performed or satisfied by such party.

         (b) The parties shall  cooperate  with one another in the  preparation,
execution and filing of all Tax Returns, questionnaires,  applications, or other
documents  regarding any real property transfer or gains,  sales, use, transfer,
value  added,   stock  transfer  and  stamp  Taxes,  any  transfer,   recording,
registration  and other fees,  and any similar  Taxes  which  become  payable in
connection with the  Transactions  that are required or permitted to be filed on
or before the Closing Date.

         (c) Diablo  shall,  at ATS' expense,  cooperate and use its  reasonable
business  efforts to (i) prepare its financial  statements  for the period ended
December  31, 1996 and  thereafter  in  accordance  with GAAP and (ii) cause its
independent  accountants to reasonably  cooperate with ATS, and at ATS' expense,
in order to  enable  ATS to have its  independent  accountants  prepare  audited
financial  statements  for the Diablo  Business  described  in  Section  6.2(g).
Without  limiting the generality of the foregoing,  Diablo agrees that after the
Closing Date it will (x) if required by the  Securities Act or the Exchange Act,
consent to the use of such  audited  financial  statements  in any  registration
statement  or other  document  filed by ATS or any  Affiliate  of ATS  under the
Securities  Act or the  Exchange  Act and (y) if  reasonably  requested  by ATS'
independent accountants,  execute and deliver, and cause its officers to execute
and  deliver,  such  "representation"  letters as are  customarily  delivered in
connection with audits under comparable circumstances.

         5.3  Public  Announcements.  Until  the  Closing,  or in the  event  of
termination  of this  Agreement,  Diablo  and ATS shall  consult  with the other
before issuing any press release or otherwise making any public  statements with
respect to this Agreement or the Transactions and shall not issue any such press
release  or make any such  public  statement  without  the prior  consent of the
other.  Notwithstanding  the foregoing,  each party acknowledges and agrees that
Diablo and ATS may, without the other's prior consent, issue such press releases
or make such public  statements as may be required by  Applicable  Law, in which
case, to the extent practicable,  the party proposing to make such press release
or public statement will consult with the other regarding the nature, extent and
form of such press  release or public  statement.  In  addition,  subject to the
terms  and  conditions  hereof,  ATS may  disclose  the  subject  matter of this
Agreement to Persons with whom Diablo has a business or contractual relationship
in  connection  with  ATS' due  diligence  investigation  of  Diablo;  provided,
however,  that prior to (i) ATS sending any  written  communication  to any such
Person,  ATS shall  secure the written  approval of the form and content of such
communication,  such  approval  not  to be  unreasonably  withheld,  delayed  or
conditioned,  and (ii)  any  verbal  or in  person  communication  with any such
Person, ATS shall provide Diablo with the opportunity to participate with ATS in
any such conversation or meeting.

         5.4 Notification of Certain Matters. Diablo and ATS shall, prior to the
Closing, give prompt notice to the other, of the occurrence or non-occurrence of
any Event the occurrence or non-occurrence of which would be likely to cause (i)
any  representation  or warranty  made by it contained  in this  Agreement to be
untrue  or  inaccurate  in any  material  respect  such  that one or more of the
conditions of Closing might not be satisfied, or (ii) any covenant, condition or
agreement  made by it contained  in this  Agreement  not to be complied  with or
satisfied,  or (iii) any change to be made in the Diablo Disclosure  Schedule in
any respect

                                      -20-


<PAGE>



such that one or more of the  conditions of Closing might not be satisfied,  and
any failure  made by it to comply with or satisfy,  or be able to comply with or
satisfy,  any covenant,  condition or agreement to be complied with or satisfied
by it  hereunder  in any  respect  such  that one or more of the  conditions  of
Closing  might not be  satisfied;  provided,  however,  that the delivery of any
notice pursuant to this Section shall not limit or otherwise affect the remedies
available hereunder to the party receiving such notice.

         5.5 No  Solicitation.  So long as this  Agreement  remains  in  effect,
Diablo  shall not,  nor shall it  knowingly  permit  any of its  Representatives
(including,  without limitation, any investment banker, broker, finder, attorney
or accountant retained by it) to, initiate,  solicit or facilitate,  directly or
indirectly,  any  inquiries  or the making of any  proposal  with respect to any
Alternative  Transaction,  engage in any discussions or negotiations concerning,
or provide to any other Person any  information  or data  relating to, it or any
Subsidiary for the purposes of, or otherwise cooperate in any way with or assist
or  participate  in, or  facilitate  any inquiries or the making of any proposal
which constitutes,  or may reasonably be expected to lead to, a proposal to seek
or effect any  Alternative  Transaction,  or agree to or endorse any Alternative
Transaction.  "Alternative Transaction" means a transaction or series of related
transactions  (other  than the  Transactions)  resulting  in (i) any  merger  or
consolidation,  regardless of whether Diablo is the surviving  Entity unless the
surviving Entity remains obligated under this Agreement to the same extent as it
was, or (ii) any sale or other disposition of all or any substantial part of the
Diablo Assets or the Diablo Business. The provisions of this Section shall apply
to  each of  Diablo's  Subsidiaries.  If  Diablo  or any of its  Representatives
receives  any inquiry  with  respect to an  Alternative  Transaction  while this
Agreement is in effect,  Diablo shall inform the inquiring  party that it is not
entitled to enter into  discussions or  negotiations  relating to an Alternative
Transaction.

         5.6  Conduct of  Business  by Diablo  Pending  the  Closing.  Except as
otherwise contemplated by this Agreement, after the date hereof and prior to the
Closing  Date  or  earlier  termination  of this  Agreement,  unless  ATS  shall
otherwise  agree in writing,  Diablo shall, to the extent relating to the Diablo
Business or the Diablo Assets:

                  (a) conduct its  business in the  ordinary and usual course of
         business  and  consistent   with  past  practice,   including   without
         limitation the performance of such maintenance, repairs or replacements
         with respect to communication  towers,  fixtures and Personal  Property
         comprising the Diablo Assets as is consistent with past practice;

                  (b) use all reasonable business efforts to preserve intact its
         business organizations and goodwill, keep available the services of its
         present  key   employees,   and  preserve  the  goodwill  and  business
         relationships  with customers and others having business  relationships
         with it;

                  (c) to the extent permitted under  Applicable Law, confer,  as
         and when reasonably requested, on a regular and frequent basis with one
         or more  representatives of ATS to report material  operational matters
         and the general status of ongoing operations;

                  (d) maintain with financially  responsible insurance companies
         insurance  on its assets and its  business in such  amounts and against
         such risks and losses as are consistent with past practice;

                  (e) use reasonable  business efforts to (i) operate the Diablo
         Business in conformity in all material  respects with all  Governmental
         and Private  Authorizations,  Leases and Material Agreements on a basis
         consistent  with past  practice  and  Applicable  Law and the rules and
         regulations of any Authority with  jurisdiction  over the Diablo Assets
         or the Diablo Business,  and (ii) maintain in full force and effect all
         such  Governmental  and  Private  Authorizations,  Leases and  Material
         Agreements relating to the Diablo Business;

                                      -21-


<PAGE>




                  (f)  except  as set  forth in  Section  5.6(f)  of the  Diablo
         Disclosure Schedule,  not (i) dispose of any of the Diablo Assets owned
         by Diablo or used in the operation of the Diablo  Business  (other than
         for the  disposition  in the ordinary  course of business of immaterial
         assets  that are of no  further  use to the  Diablo  Business)  or (ii)
         modify or change in any material  respect,  or enter into, any Material
         Agreement relating to the Diablo Business; and

                  (g) not voluntarily take any action which if taken between the
         end of its most  recent  fiscal  quarter  and prior to the date of this
         Agreement  would  have been  required  to be noted as an  exception  on
         Section 3.17 of the Diablo Disclosure Schedule.

With respect to any  transaction or act proposed to be entered into or performed
by Diablo which,  pursuant to this Section 5.6,  requires the prior  approval of
ATS,  ATS shall be deemed to have  approved  the same unless  written  notice of
disapproval is received by Diablo within five (5) business days after receipt by
ATS of a written request for approval made by Diablo.

         5.7  Preliminary  Title Reports.  As promptly as practicable  after the
execution of this Agreement, Diablo shall, at its sole cost and expense, deliver
or cause to be delivered to ATS a standard  preliminary title report dated on or
after the date of this Agreement  issued by such title company as Diablo and ATS
shall  mutually  reasonably  agree (the "Title  Company")  with respect to those
Diablo Assets comprised of the parcels of real property described in Section 5.7
of the Diablo Disclosure  Schedule (the "Insured Real Property").  Such reports,
as same may be amended or supplemented  from time to time to reflect  additional
title  matters,  are referred to herein as the "Title  Reports".  The rights and
obligations of the parties shall thereafter be as follows:

                  (a) On or before fifteen (15) business days after ATS' receipt
         of the last of the  Title  Reports,  ATS shall  give to Diablo  written
         notice ("ATS' Title  Notice") of ATS'  disapproval of any matters shown
         in the Title  Reports.  ATS' failure to give ATS' Title  Notice  within
         such  fifteen (15)  business  days shall be deemed to  constitute  ATS'
         approval of all matters disclosed by the Title Reports;

                  (b) If ATS  disapproves  any title  matters  pursuant  to ATS'
         Title Notice,  Diablo shall deliver  written  notice  ("Diablo's  Title
         Notice") to ATS within ten (10) business days after Diablo's receipt of
         ATS' Title Notice,  stating  whether  Diablo  agrees to eliminate  such
         disapproved title matters from title to the Insured Real Property prior
         to the Closing or, if such  elimination  is not  feasible  prior to the
         Closing,  to effect such  elimination  thereafter  and to indemnify and
         hold  harmless  ATS with  respect to such  remedy.  If Diablo  fails to
         timely deliver  Diablo's Title Notice,  or if Diablo delivers  Diablo's
         Title  Notice but states  therein that Diablo is unwilling or unable to
         eliminate  such  disapproved  title  matters,   ATS  and  Diablo  shall
         negotiate  in good faith in an attempt to  resolve  such  matters  (the
         "Disapproved  Title  Sites"  and,  collectively  with the  "Disapproved
         Environmental  Sites", the "Disapproved Sites") from the Diablo Assets,
         a reduction of the Purchase  Price or an  indemnification  (and escrow)
         from  Diablo  (not  subject  to the  limitations  as to time or  amount
         specified  in Article 8). If within  twenty (20)  business  days of the
         commencement  of such  negotiations  (or such longer  period as ATS and
         Diablo  shall  agree),  the parties  have been  unable to resolve  such
         matters,  either party can  terminate  this  Agreement  pursuant to the
         provisions  of Section  7.1(f) within ten (10) business days of the end
         of such negotiation period; and

                  (c) If,  at any time  following  ATS'  approval  of the  Title
         Reports,  Diablo or the Title  Company  notifies ATS of any  additional
         matter affecting title to the Insured Real Property, the

                                      -22-


<PAGE>



         parties shall have substantially the same rights and obligations as are
         set forth in paragraphs (a) and (b) above.

         5.8 Environmental  Site  Assessments.  As promptly as practicable after
the execution of this Agreement, ATS may at its own cost and expense obtain, and
deliver to Diablo  full and  complete  copies  of,  Phase I  environmental  site
assessment reports (the "Environmental  Reports") on any or all of those certain
parcels  of real  property  described  on Section  5.8 of the Diablo  Disclosure
Schedule.   Site  assessments   shall  be  conducted  by  such  consultants  and
professionals  as  ATS  and  Diablo  shall  mutually  agree  (collectively,  the
"Environmental Company"),  shall be arranged at times mutually convenient to the
parties,  and shall be conducted in a manner  which does not  interfere  with or
inconvenience  in any material  manner any of the landlords or tenants at any of
Diablo's sites. Each of Diablo and ATS shall be entitled to have representatives
present at the time such site  assessments are conducted,  and to have copies of
all correspondence with the Environmental Company:

                  (a) On or before fifteen (15) business days after ATS' receipt
         of the last of the  Environmental  Reports,  ATS  shall  give to Diablo
         written notice ("ATS' Environmental Notice") of ATS' disapproval of any
         matters shown in the Environmental  Reports.  ATS' failure to give ATS'
         Environmental  Notice  within such fifteen (15)  business days shall be
         deemed to  constitute  ATS'  approval of all matters  disclosed  by the
         Environmental Reports;

                  (b) If ATS disapproves any  environmental  matters pursuant to
         ATS'  Environmental   Notice,   Diablo  shall  deliver  written  notice
         ("Diablo's  Environmental Notice") to ATS within ten (10) business days
         after Diablo's receipt of ATS'  Environmental  Notice,  stating whether
         Diablo  agrees to eliminate and remedy such matter prior to the Closing
         or, if such elimination or remedy is not feasible prior to the Closing,
         to effect such  elimination and remedy  thereafter and to indemnify and
         hold  harmless  ATS with  respect to such  remedy.  If Diablo  fails to
         timely deliver  Diablo's  Environmental  Notice,  or if Diablo delivers
         Diablo's  Environmental  Notice  but  states  therein  that  Diablo  is
         unwilling or unable to eliminate and remedy such environmental matters,
         ATS and Diablo  shall  negotiate in good faith in an attempt to resolve
         such matters (the  "Disapproved  Environmental  Sites") from the Diablo
         Assets,  a reduction of the Purchase Price or an  indemnification  (and
         escrow)  from  Diablo  (not  subject to the  limitations  as to time or
         amount  specified in Article 8). If within twenty (20) business days of
         the commencement of such negotiations (or such longer period as ATS and
         Diablo  shall  agree),  the parties  have been  unable to resolve  such
         matters,  either party can  terminate  this  Agreement  pursuant to the
         provisions  of Section  7.1(f) within ten (10) business days of the end
         of such negotiation period; and

                  (c)  If,  at  any  time   following   ATS'   approval  of  the
         Environmental Reports, ATS or the Environmental Company notifies Diablo
         of  any  additional   environmental  matter,  the  parties  shall  have
         substantially  the same  rights  and  obligations  as are set  forth in
         paragraphs (a) and (b) above.

         5.9  Post-Closing  Covenants and  Agreements  of the Parties.  From and
after the consummation of the Transactions, ATS and Diablo covenant and agree as
follows:

                  (a) Diablo shall have the right,  if it shall have so notified
         ATS not later  than five (5)  business  days prior to the  Closing,  to
         retain (or to cause any of its  Affiliates  to retain) the  services of
         each  of  the  individuals  named  in  Section  5.9(a)  of  the  Diablo
         Disclosure Schedule;

                  (b) ATS shall  afford to Diablo,  and Diablo  shall  afford to
         ATS, access to their  respective  employees who were (or in the case of
         Diablo who remain)  employees  of Diablo on the Closing Date to the end
         that such employees are available to provide  assistance,  consultation
         and historical

                                      -23-


<PAGE>



         background to the requesting party; provided, however, that neither ATS
         nor Diablo shall have any such obligation  after the expiration of five
         (5) years from the Closing  Date or to the extent that it would  exceed
         an average of four (4) hours per week over such period; and

                  (c) ATS shall  afford to Diablo,  and Diablo  shall  afford to
         ATS,  access to all books and records  delivered  to ATS or retained by
         Diablo,  as the case may be,  relating to periods  prior to the Closing
         Date,  in order to enable Diablo or ATS, as the case may be, to prepare
         all  necessary  Tax  Returns,  deal with Legal  Actions or other Claims
         (including without limitation those of the Internal Revenue Service) or
         personnel  matters  or for  any  other  reasonable  purposes,  subject,
         however,  in all events,  to the provisions of Section 5.1 with respect
         to   confidentiality.   Anything  in  this   Section  to  the  contrary
         notwithstanding,  Diablo and ATS shall  cooperate fully in the event of
         an Internal  Revenue  Service  audit or  investigation  related to this
         Agreement,  including without limitation providing each other with full
         and complete access to each other's records and employees to the extent
         necessary to respond to any such audit or investigation.


                                    ARTICLE 6

                               CLOSING CONDITIONS

         6.1 Conditions to Obligations of Each Party to effect the Transactions.
The  respective  obligations  of each  party to effect the  Transactions  shall,
except as hereinafter  provided in this Section,  be subject to the satisfaction
at or prior to the Closing Date of the following conditions, any or all of which
may be waived, in whole or in part, to the extent permitted by Applicable Law:

                  (a) All authorizations, consents, waivers, orders or approvals
         required  to  be  obtained  from  all  Authorities,  and  all  filings,
         submissions, registrations, notices or declarations required to be made
         by ATS and Diablo with any Authority,  prior to the consummation of the
         Transactions,  shall have been obtained  from,  and made with, all such
         Authorities, except for such authorizations, consents, waivers, orders,
         approvals, filings,  registrations,  notices or declarations as are set
         forth in  Section  6.1(a)  of the  Diablo  Disclosure  Schedule  or the
         failure  to  obtain  or make  would  not,  in the  reasonable  business
         judgment of ATS,  have a material  adverse  effect on the Diablo Assets
         and the Diablo Business;

                  (b) The transactions contemplated by the Other Agreement shall
         have been consummated prior to or simultaneously  with the consummation
         of the Transactions; and

                  (c) The parties shall have entered into an escrow agreement in
         form, scope and substance  reasonably  satisfactory to the parties with
         the Title  Company or any other  Person  reasonably  acceptable  to the
         parties,  pursuant  to  which,  among  other  things,  ATS  shall  have
         deposited the portion of the Purchase Price not being  delivered to the
         Indemnity Escrow Agent or to a "qualified intermediary" pursuant to the
         provisions  of Section 2.3, and Diablo  shall have  delivered  deeds in
         customary  form with respect to all of the real property to be conveyed
         to ATS as part of the  Diablo  Assets  and the  parties,  to the extent
         required by Section 9.3, shall have  deposited an amount  sufficient to
         pay all  recording  fees,  transfer  taxes and other fees and  expenses
         which must be paid as a condition of consummation  of the  transactions
         contemplated by this Agreement.

         6.2  Conditions to  Obligations of ATS. The obligation of ATS to effect
the  Transactions  shall  be  subject  to  the  satisfaction  of  the  following
conditions,  any or all of which  may be  waived,  in  whole or in part,  to the
extent permitted by Applicable Law:

                                      -24-


<PAGE>




                  (a) All agreements, certificates, opinions and other documents
         required to be delivered  pursuant to the  provisions of this Agreement
         shall be reasonably  satisfactory  in form,  scope and substance to ATS
         and its  counsel,  and ATS and its  counsel  shall  have  received  all
         information and copies of all documents, including records of corporate
         proceedings, which they may reasonably request in connection therewith,
         such documents  where  appropriate to be certified by proper  corporate
         officers;

                  (b) Diablo shall have furnished ATS and, at ATS' request,  any
         bank or other  financial  institution  providing  credit to ATS, with a
         favorable  opinion,  dated the Closing Date of Cooper,  White & Cooper,
         counsel for Diablo,  with  respect to the matters set forth in Sections
         3.1(a),  (b) and (c),  3.7(b) and 3.14, and such other matters  arising
         after the date of this Agreement and incident to the  Transactions,  as
         ATS or its counsel or its counsel may  reasonably  request or which may
         be reasonably  requested by any such bank or financial  institution  or
         their respective counsel;

                  (c) The  representations and warranties of Diablo contained in
         this  Agreement  or  otherwise  made in  writing by it or on its behalf
         pursuant  hereto shall be true and correct in all material  respects at
         and as of the  Closing  Date with the same  force and  effect as though
         made on and as of such date  except  those  which speak as of a certain
         date  which  shall  continue  to be true and  correct  in all  material
         respects  as of  such  date  on the  Closing  Date  (including  without
         limitation  giving effect to any later obtained  knowledge of Diablo or
         ATS, except as otherwise specifically provided herein); each and all of
         the  covenants  and  agreements  and  conditions  to  be  performed  or
         satisfied  by Diablo  hereunder  at or prior to the Closing  Date shall
         have been duly  performed or satisfied  in all material  respects;  and
         Diablo  shall  have  furnished  ATS with  such  certificates  and other
         documents  evidencing  the truth of such  representations,  warranties,
         covenants and  agreements  and the  performance  of such  agreements or
         conditions as ATS or its counsel shall have reasonably requested;

                  (d) Except to the extent,  if any,  specifically  set forth in
         Section 6.2(d) of the Diablo Disclosure  Schedule,  all authorizations,
         consents,  waivers,  orders or approvals  required by the provisions of
         this Agreement to be obtained from all Persons (other than Authorities)
         prior  to the  consummation  of  the  Transactions,  including  without
         limitation  those required by the provisions of this Agreement in order
         to vest fully in ATS all right, title and interest in and to all of the
         Diablo Assets and the Diablo Business (including without limitation all
         Private Authorizations,  Leases and Material Agreements of Diablo), and
         the full  enjoyment  thereof  shall  have been  obtained,  without  the
         imposition,  individually  or in the  aggregate,  of any  condition  or
         requirement which could materially adversely affect ATS;

                  (e) Between the date of this  Agreement  and the Closing Date,
         there shall not have  occurred and be continuing  any material  adverse
         change  in  Diablo  from  that  reflected  in the  most  recent  Diablo
         Financial  Statements;   as  of  the  Closing  Date,  the  Governmental
         Authorizations with respect to the ownership or operation of the Diablo
         Assets  or the  conduct  of the  Diablo  Business  shall  not have been
         materially  and  adversely  affected  by any act, or failure to act, of
         Diablo;

                  (f) Diablo  shall have  delivered or caused to be delivered to
         ATS all of the Collateral Documents and other agreements, documents and
         instruments  required to be  delivered  by Diablo to ATS at or prior to
         the Closing pursuant to the terms of this Agreement;

                  (g) ATS shall have received from its  independent  accountants
         (i) an unqualified report (as to the scope of the audit,  access to the
         books and records and the cooperation of management) on

                                      -25-


<PAGE>



         the financial statements  (consisting of balance sheets for each of the
         fiscal  years  ended  December  31,  1995 and 1996  and  statements  of
         operations  and cash  flow for each of the  three  years in the  period
         ended December 31, 1996 or such shorter period since its  organization)
         of the Diablo  Business,  which  financial  statements  shall have been
         prepared  in  conformity   with  GAAP  and  Regulation  S-X  under  the
         Securities Act, or (ii) such other documentation as shall be reasonably
         satisfactory to ATS indicating that such an unqualified report could be
         issued if requested by ATS;

                  (h) As of the Closing  Date,  except as otherwise set forth in
         Section 3.7(a) of the Diablo Disclosure Schedule, no Legal Action shall
         be pending before or threatened in writing by any Authority  seeking to
         enjoin, restrain,  prohibit or make illegal or to impose any materially
         adverse   conditions  in  connection  with,  the  consummation  of  the
         Transactions,  or which might, in the reasonable  business  judgment of
         ATS, based upon the advice of counsel,  have a material  adverse effect
         on the Diablo Assets and the Diablo  Business,  it being understood and
         agreed that a written  request by any  Authority for  information  with
         respect  to the  Transactions,  which  information  could  be  used  in
         connection  with such Legal Action,  shall not be deemed to be a threat
         of any such Legal Action;

                  (i) All Environmental Reports obtained by the parties prior to
         the Closing Date pursuant to the provisions of Section 5.8 hereof shall
         be  approved  or deemed  approved  by ATS in the  manner  described  in
         Section 5.8;

                  (j) Richard D. Spight  ("Spight"),  the chairman and principal
         shareholder  of Diablo,  shall have  executed  and  delivered to ATS an
         agreement  substantially  in the form of Exhibit A attached  hereto and
         made a part hereof (the "Spight Noncompetition Agreement");

                  (k) Diablo and Spight shall have executed and delivered to ATS
         and the escrow agent named therein (the  "Indemnity  Escrow  Agent") an
         escrow agreement (the "Indemnity  Escrow  Agreement")  substantially in
         the form of Exhibit B attached hereto and made a part hereof;

                  (l) ATS shall have  received  standard  CLTA  title  insurance
         policies  insuring  ATS' fee  interests in all Insured  Real  Property,
         subject only to Approved Title Conditions;

                  (m)  Diablo  shall  have  delivered  to ATS all  use  permits,
         consents or other  Governmental  Authorizations  of and all Leases from
         the United  States  Forest  Service set forth in Section  6.2(m) of the
         Diablo Disclosure Schedule; and

                  (n)  Diablo  shall  have  executed  and  delivered  to  ATS an
         agreement,  in form, scope and substance reasonably satisfactory to ATS
         (the "Nonassignable Contracts Agreement"), pursuant to which (i) Diablo
         will hold (but will have no obligation to perform services  thereunder)
         for the account of ATS, and remit promptly to ATS all amounts  received
         pursuant to the provisions of, all of the Nonassignable Contracts as to
         which the required approval or consent to the assignment or transfer of
         which was not obtained and as to which ATS has  delivered an Acceptance
         Notice, and (ii) ATS will agree to (A) perform all services required to
         be performed under such Nonassignable  Contracts,  (B) reimburse Diablo
         for  all  costs  and  expenses  reasonably  incurred  pursuant  to  the
         Nonassignable  Contracts  Agreement and (C) indemnify and hold harmless
         Diablo with respect to all actions  taken by ATS  pursuant  thereto and
         all actions,  if any, taken by Diablo pursuant thereto other than those
         relating to the bad faith,  negligence or willful  misconduct of Diablo
         or its officers, directors, stockholders or employees.


                                      -26-


<PAGE>



         6.3 Conditions to  Obligations  of Diablo.  The obligation of Diablo to
effect the  Transactions  shall be subject to the  satisfaction of the following
conditions,  any or all of which  may be  waived,  in  whole or in part,  to the
extent permitted by Applicable Law:

                  (a) All agreements, certificates, opinions and other documents
         required to be delivered  pursuant to the  provisions of this Agreement
         shall be reasonably satisfactory in form, scope and substance to Diablo
         and its  counsel,  and Diablo and its counsel  shall have  received all
         information and copies of all documents, including records of corporate
         proceedings, which they may reasonably request in connection therewith,
         such documents  where  appropriate to be certified by proper  corporate
         officers;

                  (b) ATS shall have furnished Diablo and, at Diablo's  request,
         any bank of other  financial  institution  providing  credit to Diablo,
         with favorable opinions, dated the Closing Date of Sullivan & Worcester
         LLP,  counsel for ATS, with respect to the matters set forth in Section
         4.1 and with respect to such other  matters  arising  after the date of
         this  Agreement  and  incident  to the  Transactions,  as Diablo or its
         counsel may reasonably request or which may be reasonably  requested by
         any such bank or financial institution or their respective counsel;

                  (c) The  representations  and  warranties  of ATS contained in
         this  Agreement  or  otherwise  made in  writing by it or on its behalf
         pursuant  hereto shall be true and correct in all material  respects at
         and as of the  Closing  Date with the same  force and  effect as though
         made on and as of such date  except  those  which speak as of a certain
         date  which  shall  continue  to be true and  correct  in all  material
         respects  as of  such  date  on the  Closing  Date  (including  without
         limitation  giving effect to any later obtained  knowledge of Diablo or
         ATS, except as otherwise specifically provided herein); each and all of
         the  covenants  and  agreements  and  conditions  to  be  performed  or
         satisfied  by ATS  hereunder at or prior to the Closing Date shall have
         been duly  performed or satisfied  in all  material  respects;  and ATS
         shall have furnished Diablo with such  certificates and other documents
         evidencing the truth of such representations, warranties, covenants and
         agreements  and the  performance  of such  agreements  or conditions as
         Diablo or its counsel shall have reasonably requested;

                  (d) ATS  shall  have  delivered  or cause to be  delivered  to
         Diablo all of the Collateral Documents and other agreements,  documents
         and  instruments  required to be delivered by ATS to Diablo at or prior
         to the Closing pursuant to the terms of this Agreement;

                  (e) As of the Closing  Date,  no Legal Action shall be pending
         before or  threatened  in writing by any  Authority  seeking to enjoin,
         restrain,  prohibit or make illegal or to impose any materially adverse
         conditions in connection with, the consummation of the Transactions, it
         being understood and agreed that a written request by any Authority for
         information with respect to the  Transactions,  which information could
         be used in connection with such Legal Action, shall not be deemed to be
         a threat of any such Legal Action;

                  (f) ATS shall have  executed and  delivered to Diablo,  Spight
         and the Indemnity  Escrow Agent a counterpart  of the Indemnity  Escrow
         Agreement;

                  (g) ATS shall  have  executed  and  delivered  to  Diablo  the
         Nonassignable Contracts Agreement; and

                  (h) ATS shall  have  executed  and  delivered  to  Diablo  the
         Exclusivity Agreement.



                                      -27-


<PAGE>



                                    ARTICLE 7

                        TERMINATION, AMENDMENT AND WAIVER

         7.1 Termination.  This Agreement may be terminated at any time prior to
the Closing Date:

                  (a) by mutual consent of Diablo and ATS;

                  (b) by  either  ATS or  Diablo  if any  permanent  injunction,
         decree or judgment by any Authority  preventing the consummation of the
         Transactions shall have become final and nonappealable; or

                  (c) by  Diablo in the  event  (i)  Diablo  is not in  material
         breach of this Agreement and none of its  representations or warranties
         shall have become and  continue to be untrue in any  material  respect,
         and (ii) ATS is in  material  breach  of this  Agreement  or any of its
         representations  or  warranties  shall have  become and  continue to be
         untrue in any material respect, and such a breach or untruth exists and
         is not capable of being cured by and will prevent or delay consummation
         of the Transactions by or beyond the Termination Date; or

                  (d) by ATS in the event (i) ATS is not in  material  breach of
         this Agreement and none of its representations or warranties shall have
         become and  continue  to be untrue in any  material  respect,  and (ii)
         Diablo  is  in  material  breach  of  this  Agreement  or  any  of  its
         representations  or  warranties  shall have  become and  continue to be
         untrue in any material respect, and such a breach or untruth exists and
         is not capable of being cured by and will prevent or delay consummation
         of the Transactions by or beyond the Termination Date; or

                  (e) by ATS in the  event of a  failure  of the  condition  set
         forth in Section 6.2(i) or 6.2(l); or

                  (f) by ATS or Diablo  pursuant  to the  provisions  of Section
         5.7(b) or 5.8(b).

         The term "Termination Date" shall mean September 30, 1997 or such other
date as the parties may, from time to time, mutually agree.

         The right of ATS or Diablo to terminate this Agreement pursuant to this
Section shall remain  operative  and in full force and effect  regardless of any
investigation  made by or on behalf of either party, any Person  controlling any
such party or any of their respective  Representatives whether prior to or after
the execution of this Agreement.

         7.2      Effect of Termination.

         (a)   Except  as   provided   in   Sections   5.1  (with   respect   to
confidentiality),  5.3,  9.3 and  9.15  and this  Section,  in the  event of the
termination  of this  Agreement  pursuant  to Section  7.1,  or in the event the
Transactions shall not have been consummated prior to the end of business on the
Termination  Date, this Agreement shall forthwith become void, there shall be no
liability on the part of either party, or any of their respective  shareholders,
officers or  directors,  to the other and all rights and  obligations  of either
party shall cease;  provided,  however,  that such termination shall not relieve
either party from  liability for any  misrepresentation  or breach of any of its
warranties, covenants or agreements set forth in this Agreement.


                                      -28-


<PAGE>



         (b) In the event this Agreement is terminated by Diablo pursuant to the
provisions  of Section  7.1(c),  then Diablo  shall be  entitled  to  liquidated
damages of (i) an amount equal to the Escrow Deposit, together with interest and
other  earnings  thereon,  and (ii)  delivery  and  cancellation  of the Interim
Financing  Notes,  including all accrued and unpaid  interest  thereon,  and any
Additional Compensation Certificates;  the parties agree that such amounts shall
collectively  constitute full payment for any and all damages suffered by Diablo
by reason of ATS' failure to consummate the  Transactions.  ATS and Diablo agree
in advance that actual  damages  would be  difficult to ascertain  and that such
liquidated  damages  is a fair and  equitable  amount to  reimburse  Diablo  for
damages  sustained due to ATS' failure to consummate  the  Transactions  for the
above-stated  reasons. In the event this Agreement is terminated by ATS pursuant
to the provisions of Section 7.1(d), then ATS shall be entitled to the amount of
the Escrow Deposit,  together with interest and other earnings thereon,  without
prejudice  to  ATS'  right  to  pursue  damages  or  other  remedies  hereunder.
Notwithstanding the foregoing,  each party shall have the right to seek specific
performance pursuant to the provisions of Section 9.5.

         (c)  In  the  event  this  Agreement  is  terminated  pursuant  to  the
provisions  of Section  7.1(a),  7.1(b),  7.1(e),  7.1(f) or  7.1(g),  except as
provided in Section 7.2(a), neither of the parties shall have any further rights
or remedies,  except that ATS shall be entitled to the Escrow Deposit,  together
with interest and earnings thereon.

         (d)  Anything in this  Article or  elsewhere  in this  Agreement to the
contrary notwithstanding,  in no event shall Diablo be required to refund to ATS
the nonrefundable  deposits made by ATS subsequent to March 31, 1997 pursuant to
the Amendment to Letter of Intent dated March 19, 1997.


                                    ARTICLE 8

                                 INDEMNIFICATION

         8.1 Survival. The representations, warranties, covenants and agreements
of the parties contained in or made pursuant to this Agreement or any Collateral
Document (except as otherwise provided in any Collateral Document) shall survive
the Closing and shall remain operative and in full force and effect for a period
of (a) two (2) years after the  Closing  Date or (b) in the case of matters of a
nature  referred to in Section  3.21,  three (3) years  after the Closing  Date,
regardless of any  investigation  or statement as to the results thereof made by
or on behalf of any party  hereto.  The term  "Indemnity  Period" shall mean the
applicable period with respect to which a representation,  warranty, covenant or
agreement  survives  the  Closing  as  provided  in this  Section.  No claim for
indemnification,  other than with  respect to fraud,  may be asserted  after the
expiration  of the Indemnity  Period.  ATS shall  promptly  advise Diablo in the
event it shall discover any fraud or alleged fraud, it being understood that, in
the event that ATS discovers such fraud or alleged fraud prior to the expiration
of the  Indemnity  Period and fails to so notify  Diablo  thereof,  it shall not
thereafter be entitled to assert any Claim with respect thereto. Notwithstanding
anything  herein to the contrary,  any  representation,  warranty,  covenant and
agreement  which  arises and is the  subject  of a Claim  which is  asserted  in
writing prior to the expiration of the applicable Indemnity Period shall survive
with respect to such Claim or any dispute with respect  thereto  until the final
resolution  thereof or the  expiration of the  applicable  statute of limitation
unless arbitration or litigation has been pursued.

         8.2      Indemnification.

         (a)  During  the  Indemnity  Period,   each  of  Diablo  and  ATS  (the
"indemnifying  party")  agrees that on and after the Closing it shall  indemnify
and hold harmless the other (the  "indemnified  party") from and against any and
all damages,  claims,  losses,  expenses,  costs,  obligations and  liabilities,
including without

                                      -29-


<PAGE>



limitation liabilities for all reasonable attorneys',  accountants' and experts'
fees  and  expenses  including  those  incurred  to  enforce  the  terms of this
Agreement or any Collateral  Document  executed by it  (collectively,  "Loss and
Expense"),  suffered, directly or indirectly, by the indemnified party by reason
of, or arising out of:

                  (i) any  breach  of  representation  or  warranty  made by the
         indemnifying  party  pursuant  to  this  Agreement  or  any  Collateral
         Document  executed  by it or any failure by the  indemnifying  party to
         perform or fulfill any of its  respective  covenants or agreements  set
         forth in this Agreement or any Collateral Document executed by it; or

                  (ii) any  Legal  Action  or other  Claim  by any  third  party
         relating  to the  indemnifying  party  or,  in the  case  of  ATS,  the
         ownership  or  operations  of the Diablo  Assets or the  conduct of the
         business  of the Diablo  Business  to the extent  such Legal  Action or
         other Claim has also resulted in a breach of representation or warranty
         by the indemnifying  party pursuant to this Agreement or any Collateral
         Document executed by it; or

                  (iii) in the case of Diablo  as the  indemnifying  party,  the
         failure  of  Diablo  to  comply  with  Bulk  Sales  law of the State of
         California.

         (b) Diablo  agrees that on or after the Closing it shall  indemnify and
hold  harmless  ATS from and  against  any and all  Loss and  Expense  suffered,
directly  or  indirectly,  by ATS by reason  of, or  arising  out of, (i) Diablo
Nonassumed  Obligations or (ii) the ownership and operation of the Diablo Assets
and the Diablo Business prior to the Closing Date.

         (c) ATS agrees that on or after the Closing it shall indemnify and hold
harmless Diablo from and against any and all Loss and Expense suffered, directly
of indirectly, by Diablo by reason of, or arising out of, (i) (A) Diablo Assumed
Obligations  or (B) the  ownership  and  operation of the Diablo  Assets and the
Diablo Business from and after the Closing Date, except for Events arising prior
to or existing on the Closing Date,  unless they are part of the Diablo  Assumed
Obligations,  and  (ii) any  Hart-Scott-Rodino  Act or  other  federal  or state
antitrust  Law  filings  or any  Legal  Action or other  Claim of any  Authority
relating to the  Transactions  based upon any of the foregoing,  except,  in all
cases,  to the extent such filing,  Legal Action or other Claim relates to or is
based upon information furnished or omitted by Diablo.

         8.3      Limitation of Liability.

         (a)  Notwithstanding  the provisions of Section 8.2, after the Closing,
except as otherwise provided in Section 8.6, each indemnified  party's rights to
indemnification  shall  be  subject  to  the  following  limitations:   (i)  the
indemnified  party  shall be entitled to recover its Loss and Expense in respect
of any Claim  only in the event  that the  aggregate  Loss and  Expense  for all
Claims  (together  with Claims (as defined  therein)  under the Other  Agreement
("Other Agreement Claims")) exceeds, in the aggregate,  $100,000, in which event
the  indemnified  party  shall be  entitled to recover all such Loss and Expense
(including  without  limitation such  $100,000),  and (ii) in no event shall the
aggregate amount required to be paid by each indemnifying  party pursuant to the
provisions of this Article (and the comparable provision of the Other Agreement)
exceed  $1,000,000,  except for any Loss or Expense  arising out of matters of a
nature referred to in Sections 3.1 and 4.1 (and the comparable  provision of the
Other  Agreement)  as to which the dollar  limitations  set forth in this clause
(ii) shall not apply.

         (b)  Anything  in this  Agreement,  including  without  limitation  the
provisions of Sections 8.2 or 8.3(a), to the contrary notwithstanding, except as
provided in Sections 8.3(c) and 8.6, (i) the exclusive recourse of ATS after the
Closing with respect to the  liability of Diablo  pursuant to Section 8.2 or any
other  provision of this Agreement or Applicable  Law which  requires  Diablo to
defend, indemnify or hold harmless

                                      -30-


<PAGE>



ATS from or against  any Claim,  Loss or Expense  shall be the Escrow  Indemnity
Funds; and (ii) ATS' remedies for any such liability of Diablo, or for any Claim
arising under this Agreement,  shall be limited to its right to recover from the
Escrow Indemnity Funds in accordance with the provisions of the Escrow Indemnity
Agreement,  and neither ATS nor any of its  officers,  directors,  shareholders,
agents or Affiliated Entities shall have any right of recovery against Diablo or
any of its officers, directors,  shareholders,  agents or Affiliated Entities or
against the assets of any of them for any such liability.

         (c) In the event  there  shall be no  Claims  pending  pursuant  to the
provisions of this Agreement (and/or Other Agreement Claims) with respect to the
Escrow  Indemnity  Funds,  if any,  existing at the  expiration of two (2) years
after  the  Closing,   the  Escrow  Indemnity  Funds  then  remaining  shall  be
distributed  to  Diablo  and DCI (in  such  proportion  as they  shall  agree in
writing).  In the event one or more such Claims (and/or Other Agreement  Claims)
with  respect  to the  Escrow  Indemnity  Funds,  if any,  shall  exist upon the
expiration of the Indemnity  Period,  funds in an amount equal to the sum of (i)
the aggregate amount of such Claims (and/or Other Agreement Claims) and (ii) the
amount  reasonably  necessary  to  cover  the  fees,  expense  and  other  costs
(including  reasonable  counsel  fees and  expenses)  which will be  required to
resolve such Claims (and/or Other Agreement Claims) shall be retained as part of
the Escrow Indemnity Funds and the balance thereof, if any, shall be distributed
to Diablo and DCI (in such proportion as they shall agree in writing).  Upon the
resolution of all such Claims (and/or Other Agreement Claims) and the payment of
all such  fees,  expenses  and  costs out of the  Escrow  Indemnity  Funds,  the
remainder of the Escrow  Indemnity Funds, if any, shall be distributed to Diablo
and DCI (in such proportion as they shall agree in writing).

         (d) If, following the  distribution to Diablo,  DCI or any other Person
of any remaining Escrow Indemnity Funds, ATS becomes entitled to indemnification
for Loss and Expense  suffered by ATS arising from breach of the  warranties and
misrepresentations  set  forth in  Section  3.21,  or  breach  by  Diablo of any
covenants or agreement by Diablo under this Agreement or any Collateral Document
to which it is a party,  then ATS may pursue such Claim directly against Diablo,
its  successors  and assigns and Spight (but only to the extent he received  any
such  funds);  provided,  however,  that the maximum  amount of liability in the
aggregate of Diablo (and such successors and assigns and Spight) for any and all
such Claims shall be the amount of Escrow  Indemnity Funds that were distributed
to Diablo,  DCI or any other Person (other than a claimant  whose Claim was paid
out of the Indemnity  Escrow Fund) claiming by, through or in the name of Diablo
(including  without  limitation  Spight (but only to the extent he received  any
such funds) or Diablo's or his  successors,  assigns,  trustees,  beneficiaries,
heirs or executors) upon the expiration of the Indemnity Period or thereafter.

         (e) In the case any event shall occur  which  would  otherwise  entitle
either  party  to  assert a claim  for  indemnification  hereunder,  no Loss and
Expense  shall be deemed to have been  sustained  by such party to the extent of
any proceeds  received by such party from any  insurance  policies  with respect
thereto.  No  indemnifying  party shall be liable  under this Article for a loss
resulting from any event relating to a misrepresentation  or breach of warranty,
covenant  or  agreement  if  the  indemnifying  party  can  establish  that  the
indemnified  party had actual  knowledge  on or before the Closing  Date of such
event and did not,  on or before the  Closing  Date,  reserve  its  rights  with
respect thereto.

         8.4 Notice of Claims.  If an  indemnified  party  believes  that it has
suffered or incurred  any Loss and  Expense,  it shall  notify the  indemnifying
party promptly in writing,  and in any event within the  applicable  time period
specified in Section 8.1, describing such Loss and Expense,  all with reasonable
particularity  and containing a reference to the provisions of this Agreement in
respect of which such Loss and Expense shall have occurred.  If any Legal Action
is  instituted  by a third  party  with  respect to which an  indemnified  party
intends  to claim any  liability  or  expense  as Loss and  Expense  under  this
Article,  such indemnified party shall promptly notify the indemnifying party of
such Legal Action, but the failure to so notify the indemnifying

                                      -31-


<PAGE>



party shall not relieve such  indemnifying  party of its obligations  under this
Article,   except  to  the  extent  such  failure  to  notify   prejudices  such
indemnifying party's ability to defend against such Claim.

         8.5 Defense of Third Party Claims.  The  indemnifying  party shall have
the right to  conduct  and  control,  through  counsel  of their  own  choosing,
reasonably  acceptable to the indemnified party, any third party Legal Action or
other Claim, but the indemnified party may, at its election,  participate in the
defense  thereof at its sole cost and expense;  provided,  however,  that if the
indemnifying  party shall fail to defend any such Legal  Action or other  Claim,
then the indemnified party may defend, through counsel of its own choosing, such
Legal Action or other Claim, and (so long as it gives the indemnifying  party at
least fifteen (15) days' written notice of the terms of the proposed  settlement
thereof  and  permits  the  indemnifying  party to then  undertake  the  defense
thereof)  settle  such Legal  Action or other Claim and to recover the amount of
such settlement or of any judgment and the reasonable costs and expenses of such
defense.  The  indemnifying  party shall not compromise or settle any such Legal
Action or other  Claim  without  the prior  written  consent of the  indemnified
party;  provided,  however,  that if the  indemnified  party fails or refuses to
consent in writing to any compromise of settlement  proposed by the indemnifying
party and  agreed to in writing by the  claimant  in such Legal  Action or other
Claim (the "Settlement Proposal") within ten (10) business days after receipt of
written  notice of all of the material  terms and  conditions of the  Settlement
Proposal,  and such  terms and  conditions  (a)  include a full  release  of the
indemnified  party from the Legal  Action or other Claim which is the subject of
the Settlement Proposal, and (b) if the indemnified party is ATS, do not include
any term or condition  which would restrict in any material manner the continued
ownership  or  operations  of the  Diablo  Assets or the  conduct  of the Diablo
Business in substantially the manner then being theretofore owned,  operated and
conducted by ATS, then,  unless the indemnifying  party forthwith  withdraws the
Settlement Proposal,  the indemnified party (i) shall have the right but not the
obligation to undertake the conduct of the defense of such Legal Action or other
Claim,  and (ii) whether or not it shall so undertake  the defense of such Legal
Action or other Claim, shall bear, and shall indemnify and hold the indemnifying
party  harmless  from,  all Loss and Expense  arising  from such Legal Action or
other Claim (to the extent not theretofore (x) accrued with respect to the costs
and expenses of the defense of such Legal Action or other Claim or (y) paid with
respect to such Legal Action or other  Claim) in excess of the amount  contained
in the  Settlement  Proposal,  it  being  understood,  in such  event,  that the
indemnifying  party  shall  bear all Loss and  Expense,  including  subsequently
incurred Loss and Expense  (including  without  limitation those attributable to
legal fees and expenses) up to the amount contained in the Settlement  Proposal,
even if the ultimate  disposition of such Legal Action or other Claim results in
payments  to the  claimant  of  less  than  those  contained  in the  Settlement
Proposal.

         8.6  Exclusive  Remedy.  Except  for fraud or  willful  or  intentional
misrepresentation  or breach of warranty,  covenant or agreement or as otherwise
provided in Section 9.5, the  indemnification  provided in this Article shall be
the sole and exclusive post-Closing remedy available to either party against the
other party for any Claim under this Agreement.


                                    ARTICLE 9

                               GENERAL PROVISIONS


         9.1  Amendment.  This Agreement may be amended from time to time by the
parties  hereto at any time but only by an instrument  in writing  signed by the
parties hereto.

         9.2 Waiver.  Except to the extent not permitted by Applicable  Law, ATS
or Diablo may, at any time,  extend the time for the  performance  of any of the
obligations or other acts of the other, subject,

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<PAGE>



however,  to the  provisions  with respect to the  Termination  Date,  waive any
inaccuracies in the representations and warranties of the other contained herein
or in any document  delivered pursuant hereto, and waive compliance by the other
with any of the agreements,  covenants or conditions  contained herein. Any such
extension or waiver shall be valid only if set forth in an instrument in writing
signed by the party or parties to be bound thereby.

         9.3 Fees, Expenses and Other Payments. All costs and expenses, incurred
in connection with any transfer taxes, recording or documentary taxes, stamps or
other  comparable  charges  levied  by any  Authority  in  connection  with this
Agreement and the consummation of the Transactions, title insurance for Diablo's
fee-owned  Real  Property  shall  be  borne  equally  by  Diablo  and  ATS.  All
Hart-Scott-Rodino  filing fees for both this  Agreement and the Other  Agreement
shall be borne equally by Diablo and ATS up to the amount of $20,000 for each of
Diablo  and ATS,  with the  balance  to be borne by ATS.  All  other  costs  and
expenses  incurred in connection with this Agreement and the consummation of the
Transactions,  including  without  limitation fees and disbursements of counsel,
financial  advisors and  accountants  incurred by the parties  hereto,  shall be
borne  solely  and  entirely  by the party  which has  incurred  such  costs and
expenses.

         9.4  Notices.  All  notices  and  other  communications  which  by  any
provision of this Agreement are required or permitted to be given shall be given
in  writing  and shall be (a)  mailed by  first-class  or  express  mail,  or by
recognized  courier  service,  postage  prepaid,  (b) sent by  telex,  telegram,
telecopy  or other form of rapid  transmission,  confirmed  by mailing (by first
class or express  mail,  or by  recognized  courier  service,  postage  prepaid)
written  confirmation at substantially the same time as such rapid transmission,
or (c)  personally  delivered  to the  receiving  party  (which if other than an
individual  shall be an  officer  or other  responsible  party of the  receiving
party). All such notices and communications  shall be mailed,  sent or delivered
as follows:

         (a)      If to ATS:

                  116 Huntington Avenue
                  Boston, Massachusetts 02116
                  Attention:   Joseph L. Winn, Chief Financial Officer
                  Telecopier No.:  (617) 375-7575

                  with a copy to:

                  Sullivan & Worcester LLP
                  One Post Office Square
                  Boston, Massachusetts 02109
                  Attention:  Norman A. Bikales, Esq.
                  Telecopier No.:  (617) 338-2880


                                      -33-


<PAGE>



         (b)      If to Diablo:

                  1220 Brickyard Cove Road, Suite 200
                  Point Richmond, California 94801
                  Attention: Richard D. Spight, Chairman
                  Telecopier No.: (510) 236-3799

                  with a copy to:

                  Cooper, White & Cooper
                  1333 North California Boulevard, Suite 450
                  Walnut Creek, California 94596
                  Attention: Keith Howard, Esq.
                  Telecopier No.: (510) 256-9428

or to such other person(s),  telex or facsimile  number(s) or address(es) as the
party to receive any such communication or notice may have designated by written
notice to the other party.

         9.5 Specific Performance;  Other Rights and Remedies.  Anything in this
Agreement to the contrary notwithstanding, each party recognizes and agrees that
in the event the other party  should  refuse to perform  any of its  obligations
under this  Agreement  or any  Collateral  Document,  the remedy at law would be
inadequate  and  agrees  that for breach of such  provisions,  each party not in
material breach of this Agreement or any Collateral  Document shall, in addition
to such  other  remedies  as may be  available  to it at law or in  equity or as
provided  in Article 7, be  entitled  to  injunctive  relief and to enforce  its
rights  by an  action  for  specific  performance  to the  extent  permitted  by
Applicable  Law.  Each party hereby waives any  requirement  for security or the
posting  of any  bond or other  surety  in  connection  with  any  temporary  or
permanent  award of injunctive,  mandatory or other  equitable  relief.  Nothing
herein  contained shall be construed as prohibiting each party from pursuing any
other remedies available to it pursuant to the provisions of, and subject to the
limitations  contained in, this Agreement for such breach or threatened  breach.
Notwithstanding  the  foregoing  or  any  provision  of  this  Agreement  to the
contrary,  after  the  Closing  Date  ATS  shall  not be  entitled  to  specific
performance  or any other  remedy to the extent that the cost to Diablo  arising
from the  enforcement or exercise of such remedy would exceed the amount then on
deposit in the Escrow  Indemnity Funds, in accordance with the provisions of the
Escrow Indemnity  Agreement,  for all costs and expenses  incurred in connection
with its performance of or compliance with the remedy exercised or enforced.

         9.6  Severability.  If any term or provision of this Agreement shall be
held or deemed  to be, or shall in fact be,  invalid,  inoperative,  illegal  or
unenforceable  as  applied  to  any  particular  case  in  any  jurisdiction  or
jurisdictions,  or in  all  jurisdictions  or  in  all  cases,  because  of  the
conflicting of any provision with any  constitution or statute or rule of public
policy or for any other reason,  such circumstance  shall not have the effect of
rendering the provision or provisions in question invalid, inoperative,  illegal
or unenforceable in any other  jurisdiction or in any other case or circumstance
or of rendering any other  provision or  provisions  herein  contained  invalid,
inoperative,  illegal or  unenforceable to the extent that such other provisions
are not themselves actually in conflict with such constitution,  statute or rule
of public policy, but this Agreement shall be reformed and construed in any such
jurisdiction or case as if such invalid,  inoperative,  illegal or unenforceable
provision had never been contained herein and such provision reformed so that it
would be valid,  operative and  enforceable to the maximum  extent  permitted in
such jurisdiction or in such case.  Notwithstanding the foregoing,  in the event
of any such  determination  the  effect  of which is to  affect  materially  and
adversely either party, the parties shall negotiate in good faith to modify this
Agreement  so as to effect  the  original  intent of the  parties  as closely as
possible to the fullest extent permitted

                                      -34-


<PAGE>



by Applicable Law in an acceptable  manner to the end that the  Transactions are
fulfilled and consummated to the maximum extent possible.

         9.7   Counterparts.   This   Agreement   may  be  executed  in  several
counterparts,  each of  which  shall be  deemed  an  original,  but all of which
together shall constitute one and the same  instrument,  binding upon all of the
parties. In pleading or proving any provision of this Agreement, it shall not be
necessary to produce more than one of such counterparts.

         9.8 Section Headings.  The headings contained in this Agreement are for
reference  purposes  only  and  shall  not in any  way  affect  the  meaning  or
interpretation of this Agreement.

         9.9 Governing Law; Venue.  The validity,  interpretation,  construction
and  performance  of this  Agreement  shall be  governed  by, and  construed  in
accordance  with,  the  applicable  laws of the United States of America and the
laws of the State of California  applicable  to contracts  made and performed in
such State and, in any event, without giving effect to any choice or conflict of
laws provision or rule that would cause the application of domestic  substantive
laws of any other  jurisdiction.  Anything  in this  Agreement  to the  contrary
notwithstanding,  including  without  limitation the provisions of Article 8, in
the event of any dispute  between the parties  which  results in a Legal Action,
the prevailing party shall be entitled to receive from the non-prevailing  party
reimbursement for reasonable legal fees and expenses incurred by such prevailing
party in such Legal Action. In the event of any Legal Action between the parties
arising out of this  Agreement,  the  parties  agree to submit the matter to the
appropriate  municipal,  state or federal court sitting in San Francisco County,
California, and the parties agree to submit to the jurisdiction of such courts.

         9.10 Further Acts. Each party agrees that at any time, and from time to
time, before and after the consummation of the transactions contemplated by this
Agreement,  it  will do all  such  things  and  execute  and  deliver  all  such
Collateral  Documents  and other  assurances,  as any other party or its counsel
reasonably  deems  necessary  or  desirable  in order to carry out the terms and
conditions of this  Agreement  and the  transactions  contemplated  hereby or to
facilitate  the enjoyment of any of the rights  created  hereby or to be created
hereunder.

         9.11  Entire  Agreement.  This  Agreement  (together  with  the  Diablo
Disclosure  Schedule and the other Collateral  Documents delivered in connection
herewith),  constitutes  the entire  agreement of the parties and supersedes all
prior agreements and undertakings,  both written and oral,  between the parties,
with respect to the subject matter hereof,  including  without  limitation  that
certain  letter of intent,  dated  December  19, 1996,  between the parties,  as
amended by the letter dated March 19, 1997 (the "Letter of Intent").

         9.12 Assignment. This Agreement shall not be assignable by either party
and any such  assignment  shall be null and void,  except that it shall inure to
the benefit of and by binding  upon any  successor  to any party by operation of
law,  including by way of merger,  consolidation or sale of all or substantially
all of its assets,  and ATS may assign its rights and remedies  hereunder to any
bank or other financial institution which has loaned funds or otherwise extended
credit to it.

         9.13  Parties in  Interest.  This  Agreement  shall be binding upon and
inure  solely to the  benefit of each  party,  and  nothing  in this  Agreement,
express or implied,  including without limitation Section 2.2(c), is intended to
or shall  confer  upon any  Person  any  right,  benefit or remedy of any nature
whatsoever under or by reason of this Agreement, except as otherwise provided in
Section 9.12.

         9.14 Mutual Drafting. This Agreement is the result of the joint efforts
of Diablo and ATS,  and each  provision  hereof  has been  subject to the mutual
consultation, negotiation and agreement of the parties

                                      -35-


<PAGE>



and there shall be no construction against either party based on any presumption
of that party's involvement in the drafting thereof.

         9.15  Arbitration.  If there is any dispute between the parties to this
Agreement  which remains  unresolved for thirty (30) days or more,  either party
may,  upon  written  notice  to  the  other,  submit  such  dispute  to  binding
arbitration in San Francisco, California in accordance with the commercial rules
of the American Arbitration  Association (the "AAA") before a panel of three (3)
arbitrators  knowledgeable in the tower communications  industry, one arbitrator
chosen by ATS, one by Diablo,  and the third as mutually  agreed upon by the two
arbitrators so appointed or, in the absence of such agreement,  by the President
of the San  Francisco  Chapter of the AAA, and the decision of such panel shall,
in the absence of fraud, be conclusively binding on the parties.

         9.16  Disclosure  Schedule.  Diablo  has  delivered  to  ATS  prior  to
execution and delivery of this Agreement the Diablo Disclosure  Schedule and all
related  documents  required to be delivered by Diablo  pursuant to Article 3 of
this  Agreement.  Without  limiting the generality of the foregoing,  the Diablo
Disclosure  Schedule sets forth: (i) which  authorizations,  consents,  waivers,
orders or approvals  are a condition of Closing  pursuant to the  provisions  of
Section  6.1(a);  (ii)  which  Private   Authorizations,   Leases  and  Material
Agreements and other Contractual Obligations are a condition to Closing pursuant
to the provisions of Section 6.2(d); and (iii) which permits,  consents or other
Governmental  Authorizations of the United States Forest Service are a condition
to Closing  pursuant to the provisions of Section  6.2(m).  ATS has received and
hereby  accepts the Diablo  Disclosure  Schedule  and agrees to  consummate  the
transactions contemplated by this Agreement,  subject to the satisfaction of the
conditions  set  forth  in  Sections  6.1  and 6.2 and  subject  to the  matters
disclosed in the Diablo Disclosure Schedule.



                                      -36-


<PAGE>



         IN WITNESS  WHEREOF,  ATS and Diablo have caused this  Agreement  to be
executed  as of the  date  first  written  above by  their  respective  officers
thereunto duly authorized.

                              American Tower Systems, Inc.


                              By:_____________________________________
                                   Name: James S. Eisenstein
                                   Title:   Chief Operating Officer

                              Diablo Communications of Southern California, Inc.


                              By:______________________________________
                                   Name:
                                   Title:

         The  undersigned,  Richard D.  Spight,  the  principal  shareholder  of
Diablo,  hereby acknowledges and agrees to be bound by the provisions of Article
8, including without limitation Section 8.3(d).


                                              ----------------------------------
                                                       Richard D. Spight














                                      -37-


<PAGE>



                                                                      APPENDIX A

                                   DEFINITIONS

         As used in this Agreement,  unless the context otherwise requires,  the
following  terms  (or any  variant  in the  form  thereof)  have  the  following
respective  meanings.  Terms  defined in the  singular  shall have a  comparable
meaning when used in the plural, and vice versa, and the reference to any gender
shall be deemed to include all genders.  Unless otherwise defined or the context
otherwise clearly  requires,  terms for which meanings are provided herein shall
have  such  meanings  when  used in the  Diablo  Disclosure  Schedule,  and each
Collateral  Document  executed or required  to be  executed  pursuant  hereto or
thereto or otherwise  delivered,  from time to time, pursuant hereto or thereto.
References  to "hereof",  "herein" or similar terms are intended to refer to the
Agreement  as a whole and not a  particular  Section,  and  references  to "this
Section"  are  intended  to refer to the  entire  Section  and not a  particular
subsection thereof.  The term "either party" shall, unless the context otherwise
requires, refer to Diablo and ATS.

         Acceptance Notice shall have the meaning given to it in Section 2.2(c).

         Accounts Receivable shall mean (a) any and all rights to the payment of
money or other forms of  consideration  of any kind at any time now or hereafter
owing or to be owing to Diablo attributable to the ownership or operation of the
Diablo Business  (whether  classified  under the Uniform  Commercial Code of any
state as accounts,  contract  rights,  chattel  paper,  general  intangibles  or
otherwise),  including without limitation accounts receivable, letters of credit
and the right to receive payment thereunder,  chattel paper, insurance proceeds,
contract rights, notes, drafts,  instruments,  documents,  acceptances,  and all
other debts, obligations and liabilities in whatever form now or hereafter owing
from any other Person, all guarantees, security and Liens for the payment of any
thereof,  and all of Diablo's rights to goods, now owned or hereafter  acquired,
sold (delivered,  undelivered,  in transit or returned) which may be represented
thereby; and (b) all proceeds of any of the foregoing.

         adverse,  adversely, when used alone or in conjunction with other terms
(including  without  limitation  "affect," "change" and "effect") shall mean any
Event which is reasonably likely, in the reasonable business judgment of ATS, to
be expected to (a)  adversely  affect the  validity  or  enforceability  of this
Agreement  or  the  likelihood  of  consummation  of  the  Transactions,  or (b)
adversely affect the business, operations,  management, properties or prospects,
or the  condition,  financial  or other,  or results of  operation of the Diablo
Business,  or (c) impair Diablo's  ability to fulfill its obligations  under the
terms of this  Agreement,  or (d)  adversely  affect  the  aggregate  rights and
remedies  of ATS  under  this  Agreement.  Notwithstanding  the  foregoing,  and
anything  in this  Agreement  to the  contrary  notwithstanding,  any  Event (i)
generally affecting the economy or the tower communications  business or (ii) of
a nature described in the "Definition" section of the Diablo Disclosure Schedule
shall not be deemed to constitute an adverse  change,  have an adverse effect or
to adversely affect or effect.

         Additional  Title Matter shall have the meaning  given to it in Section
5.7.

         Affiliate,  Affiliated shall mean, with respect to any Person,  (a) any
other Person at the time  directly or indirectly  controlling,  controlled by or
under direct or indirect  common control with such Person,  (b) any other Person
of which such Person at the time owns, or has the right to acquire,  directly or
indirectly,  twenty  percent  (20%) or more of any class of the capital stock or
beneficial  interest,  (c) any other Person  which at the time owns,  or has the
right to acquire,  directly or  indirectly,  twenty percent (20%) or more of any
class of the  capital  stock or  beneficial  interest  of such  Person,  (d) any
executive  officer  or  director  of  such  Person,  (e)  with  respect  to  any
partnership,  joint venture or similar Entity, any general partner thereof,  and
(f) when

                                       A-1


<PAGE>



used  with  respect  to  an  individual,   shall  include  any  member  of  such
individual's immediate family or a family trust.

         Agreement shall mean this Agreement as originally in effect, including,
unless the context otherwise specifically requires,  this Appendix A, the Diablo
Disclosure  Schedule  and all exhibits  hereto,  and as any of the same may from
time to time be supplemented, amended, modified or restated in the manner herein
or therein provided.

         Applicable Law shall mean any Law of any Authority, whether domestic or
foreign,  including  without  limitation  the  FCA  and all  federal  and  state
securities and  Environmental  Laws, to which a Person is subject or by which it
or any of its business or operations is subject or any of its property or assets
is bound.

         Approved Title  Conditions shall mean any one or more of the following:
(a) Liens for real property taxes and assessments not then  delinquent;  (b) the
Lien of  supplemental  Taxes assessed  pursuant to Chapter 3.5  commencing  with
Section 75 of the California  Revenue and Taxation Code, to the extent that such
supplemental  Taxes are  attributable to the  transactions  contemplated by this
Agreement; (c) matters of title approved by ATS or deemed approved in accordance
with the  provisions of Section 5.7; and (d) matters of title created  following
the date of this Agreement by or with the written consent of ATS.

         Assets shall mean the business and the tangible and  intangible  assets
used in connection  with the conduct of the business or operations of the Diablo
Business,  which  business  and  assets  are  being  exchanged,  transferred  or
otherwise conveyed hereunder, including without including without limitation the
following:


                  (a) the Personal Property;

                  (b) the Real Property;

                  (c) the Governmental Authorizations;

                  (d) the Private Authorizations;

                  (e)  the   Contracts   (other   than  the  Diablo   Nonassumed
         Obligations);

                  (f) the corporate name of Diablo and all variations thereof;

                  (g)  all   Intellectual   Property   and   other   proprietary
         information,  which relate to the Diablo  Business,  including  without
         limitation,  technical  information  and data,  machinery and equipment
         warranties, maps, computer discs and tapes, plans, diagrams, blueprints
         and schematics,  including filings with all Authorities which relate to
         the Diablo Business;

                  (h) all claims,  choses in action and rights under  warranties
         relating to the Diablo Business or any of the Diablo Assets;

                  (i)  all  books  and  records  relating  to the  ownership  or
         operation of the Diablo  Assets or the conduct of the Diablo  Business,
         including  executed  copies of Leases,  Material  Agreements  and other
         written  Contracts,  and all records  required by Applicable  Law to be
         kept,  subject to the right of the  conveying  party to have such books
         and records  made  available  to it for such time as may be  reasonably
         required in connection with audits, defense or prosecution of lawsuits,
         or other legitimate  business  purposes.  The records  described herein
         shall not include corporate seals, certificates of

                                       A-2


<PAGE>



         incorporation,  minute books, stock books, tax returns or other records
         having to do with the corporate organization of Diablo; and

                  (j)  any  and all  products,  profits  and  proceeds  of,  and
         including  without  limitation  any Claims with  respect to, any of the
         foregoing;

provided, however, that notwithstanding the foregoing, the term Assets shall not
include any of the Excluded Assets.

         ATS shall have the meaning given to it in the Preamble.

         ATS Accrued Sick Time  Liability  shall have the meaning given to it in
Section 2.2(c).

         ATS Assumed  Vacation  Liability  shall have the meaning given to it in
Section 2.2(c).

         ATS' Environmental Notice shall have the meaning given to it in Section
5.8.

         ATS' Title Notice shall have the meaning given to it in Section 5.7.

         Authority shall mean any governmental or quasi-governmental  authority,
whether  administrative,  executive,  judicial,  legislative  or  other,  or any
combination   thereof,   including  without   limitation  any  federal,   state,
territorial,   county,   municipal  or  other   government  or  governmental  or
quasi-governmental agency, arbitrator,  authority,  board, body, branch, bureau,
central bank or comparable  agency or Entity,  commission,  corporation,  court,
department,  instrumentality,  master, mediator, panel, referee, system or other
political unit or  subdivision or other Entity of any of the foregoing,  whether
domestic or foreign., including without limitation the FCC.

         Benefit Arrangement shall mean any material benefit arrangement that is
not a Plan,  including  (a)  any  employment  or  consulting  agreement  (b) any
arrangement providing for insurance coverage or workers' compensation  benefits,
(c) any  incentive  bonus or deferred  bonus  arrangement,  (d) any  arrangement
providing termination  allowance,  severance or similar benefits, (e) any equity
compensation plan, (f) any deferred  compensation plan, and (g) any compensation
policy and  practice,  but only to the  extent  that it covers or relates to any
officer, employee or other Person involved in the ownership and operation of the
Assets or the conduct of the business of the Diablo Business.

         CAAP shall mean the  accounting  principles  used by the Company in the
preparation  of the Financial  Statements  and described in general terms in the
Disclosure  Schedule,  such principles applied on a consistent basis,  except as
otherwise heretofore disclosed in the Disclosure Schedule.  The requirement that
such principles be consistently applied means that the accounting  principles in
a current  period are  comparable  in all material  respect to those  applied in
preceding period.  All accounting and financial terms used in this Agreement and
the  compliance  with each covenant  contained in this Agreement that relates to
financial  matters  shall  be  determined  in  accordance  with  the  accounting
principles referred to in this paragraph (except as otherwise specifically noted
in certain of the definitions where the term GAAP is used).

         Claims shall mean any and all debts, liabilities,  obligations, losses,
damages,  deficiencies,  assessments  and  penalties,  together  with all  Legal
Actions, pending or threatened, claims and judgments of whatever kind and nature
relating  thereto,  and all fees, costs,  expenses and disbursements  (including
without  limitation  reasonable  attorneys'  and  other  legal  fees,  costs and
expenses) relating to any of the foregoing.

         Closing shall have the meaning given to it in Section 2.3.

                                       A-3


<PAGE>



         Closing Date shall have the meaning given to it in Section 2.3.

         COBRA shall mean the Consolidated Omnibus Budget  Reconciliation Act of
1985,  as  amended,  as set  forth  in  Section  4980B of the Code and Part 6 of
Subtitle B of Title I of ERISA.

         Code shall mean the Internal  Revenue  Code of 1986,  and the rules and
regulations  thereunder,  all as from time to time in effect,  or any  successor
law,  rules or  regulations,  and any  reference to any  statutory or regulatory
provision  shall be deemed  to be a  reference  to any  successor  statutory  or
regulatory provision.

         Collateral  Document  shall mean the Escrow  Agreement,  the  Indemnity
Escrow Agreement, the Nonassignable Contracts Agreement, special warranty deeds,
bills of sale, assignments of intangibles, assumption agreements with respect to
the Diablo Assumed  Obligations,  other instruments of conveyance and assignment
sufficient to vest in ATS title to all of the other Diablo Assets and the Diablo
Business, and any other agreement,  certificate,  contract,  instrument, notice,
opinion or other document delivered pursuant to the provisions of this Agreement
or any Collateral Document.

         Collection Period shall have the meaning given to it in Section 2.4.

         Construction  Adjustment  shall have the meaning given to it in Section
2.3.

         Contract, Contractual Obligation shall mean any agreement, arrangement,
commitment,  contract, covenant,  indemnity,  undertaking or other obligation or
liability  which involves the ownership or operation of the Diablo Assets or the
conduct of the Diablo Business.

         Control (including the terms  "controlled,"  "controlled by" and "under
common control with") means the possession, directly or indirectly or as trustee
or executor,  of the power to direct or cause the direction of the management or
policies of a Person,  or the disposition of such Person's assets or properties,
whether through the ownership of stock, equity or other ownership,  by contract,
arrangement or understanding,  or as trustee or executor,  by contract or credit
arrangement or otherwise.

         DCI shall have the meaning given to it in the fourth Whereas paragraph.

         Diablo shall have the meaning given to it in the Preamble.

         Diablo Assumable  Agreements shall mean all obligations and liabilities
of Diablo under all Leases,  Material Agreements,  Governmental  Authorizations,
Private  Authorizations  and other  Contractual  Obligations  not required to be
listed on Section  3.16 of the Diablo  Disclosure  Schedule  entered into in the
ordinary course of business and relating to the ownership or operation of any of
the Diablo Assets or the
conduct of the Diablo Business.

         Diablo Assets shall have the meaning given to it in Section 2.1.

         Diablo  Assumed  Liabilities  shall  have  the  meaning  given to it in
Section 2.2(b).

         Diablo  Business shall have the meaning given them in the first Whereas
paragraph.

         Diablo Disclosure  Schedule shall mean the Diablo  Disclosure  Schedule
dated as of the date of this Agreement delivered by Diablo to ATS.

         Diablo  Employees  shall  have  the  meaning  given  it in the  Section
3.15(a).

                                       A-4


<PAGE>



         Diablo  Financial  Statements  shall  have the  meaning  given to it in
Section 3.2(b).

         Diablo  Nonassumed  Obligations  shall have the meaning  given to it in
Section 2.2(b).

         Diablo Personal  Property shall have the meaning given to it in Section
3.5(c).

         Diablo's  Environmental  Notice  shall have the meaning  given to it in
Section 5.8.

         Diablo's  knowledge means the actual knowledge of any Diablo officer or
senior  manager,  as such knowledge  exists on the date of this Agreement and no
later date, after reasonable review of appropriate Diablo records.

         Diablo's  Title  Notice  shall have the meaning  given to it in Section
5.7.

         Employment   Arrangement  shall  mean,  with  respect  to  Diablo,  any
employment,  consulting,  retainer,  severance or similar  contract,  agreement,
plan,  arrangement or policy (exclusive of any which is terminable within thirty
(30) days  without  liability,  penalty  or payment of any kind by Diablo or any
Affiliate), or providing for severance, termination payments, insurance coverage
(including any  self-insured  arrangements),  workers  compensation,  disability
benefits,   life,  health,   medical,   dental  or   hospitalization   benefits,
supplemental unemployment benefits,  vacation or sick leave benefits, pension or
retirement benefits or for deferred compensation, profit-sharing, bonuses, stock
options,  stock  purchase or  appreciation  rights or other  forms of  incentive
compensation  or  post-retirement  insurance,  compensation  or  post-retirement
insurance, compensation or benefits, or any collective bargaining or other labor
agreement,  whether or not any of the foregoing is subject to the  provisions of
ERISA, but only to the extent that it covers or relates to any officer, employee
or other Person  involved in the  ownership or operation of the Diablo Assets or
the conduct of the Diablo Business.

         Encumber  shall  mean  to  suffer,  accept,  agree  to  or  permit  the
imposition of a Lien.

         Entity shall mean any corporation,  firm, unincorporated  organization,
association,  partnership,  limited  liability  company,  trust  (inter vivos or
testamentary),  estate of a deceased, insane or incompetent individual, business
trust,  joint stock  company,  joint  venture or other  organization,  entity or
business,  whether acting in an individual,  fiduciary or other capacity, or any
Authority.

         Environmental  Company  shall have the  meaning  given to it in Section
5.8.

         Environmental Law shall mean any Law relating to or otherwise  imposing
liability or  standards of conduct  concerning  pollution or  protection  of the
environment,   including   without   limitation   Laws  relating  to  emissions,
discharges,  releases or  threatened  releases of  Hazardous  Materials or other
chemicals or  industrial  pollutants,  substances,  materials or wastes into the
environment (including,  without limitation,  ambient air, surface water, ground
water,  mining or reclamation or mined land, land surface or subsurface  strata)
or otherwise relating to the manufacture,  processing, generation, distribution,
use, treatment, storage, disposal, cleanup, transport or handling of pollutants,
contaminants,  chemicals or industrial, toxic or hazardous substances, materials
or wastes. Environmental Laws shall include without limitation the Comprehensive
Environmental  Response,  Compensation and Liability Act (42 U.S.C. Section 6901
et seq.), the Hazardous Material  Transportation Act (49 U.S.C.  Section 1801 et
seq.),  the Resource  Conservation  and Recovery Act (42 U.S.C.  Section 6901 et
seq.), the Federal Water Pollution Control Act (33 U.S.C. Section 1251 et seq.),
the Clean Air Act (42 U.S.C. Section 7401 et seq.), the Toxic Substances Control
Act (15 U.S.C. Section 2601 et seq.), the Occupational Safety and Health Act (29
U.S.C.  Section 651 et seq.), the Federal Insecticide  Fungicide and Rodenticide
Act (7 U.S.C. Section 136 et seq.), and the Surface Mining

                                       A-5


<PAGE>



Control and  Reclamation Act of 1977 (30 U.S.C.  Section 1201 et seq.),  and any
analogous federal,  state, local or foreign, Laws, and the rules and regulations
promulgated  thereunder all as from time to time in effect, and any reference to
any statutory or regulatory  provision  shall be deemed to be a reference to any
successor statutory or regulatory provision.

         Environmental Permit shall mean any Governmental Authorization required
by or pursuant to any Environmental Law.

         Environmental  Reports  shall have the  meaning  given to it in Section
5.8.

         ERISA shall mean the Employee  Retirement  Income Security Act of 1974,
and the rules and regulations thereunder, all as from time to time in effect, or
any successor law, rules or  regulations,  and any reference to any statutory or
regulatory  provision  shall  be  deemed  to be a  reference  to  any  successor
statutory or regulatory provision.

         ERISA  Affiliate  shall  mean any  Person  that is  treated as a single
employer  with Diablo  under  Sections  414(b),  (c),  (m) or (o) of the Code or
Section 4001(b)(1) of ERISA.

         Escrow  Agent shall have the meaning  given to it in the third  Whereas
paragraph.

         Escrow  Agreement  shall  have the  meaning  given  to it in the  third
Whereas paragraph.

         Escrow  Deposit shall have the meaning given to it in the third Whereas
paragraph.

         Event  shall  mean the  existence  or  occurrence  of any act,  action,
activity,  circumstance,  condition,  event,  fact,  failure  to act,  omission,
incident or practice, or any set or combination of any of the foregoing.

         Exchange Act shall mean the  Securities  Exchange Act of 1934,  and the
rules and  regulations  thereunder,  all as from time to time in effect,  or any
successor  law,  rules or  regulations,  and any  reference to any  statutory or
regulatory  provision  shall  be  deemed  to be a  reference  to  any  successor
statutory or regulatory provision.

         Excluded Assets shall have the meaning given to it in Section 2.1.

         Exclusivity  Agreement  shall have the  meaning  given to it in Section
6.2(r).

         FCA  shall  mean the  Communication  Act of  1934,  and the  rules  and
regulations  thereunder,  all as from time to time in effect,  or any  successor
law,  rules or  regulations,  and any  reference to any  statutory or regulatory
provision  shall be deemed  to be a  reference  to any  successor  statutory  or
regulatory provision.

         FCC shall mean the Federal Communications  Commission and shall include
any successor Authority.

         Final  Order  shall  mean,  with  respect to any  Authority,  including
without  limitation  the FCC, one with respect to which no appeal,  no stay,  no
petition or application for rehearing, reconsideration,  review or stay, whether
on motion of the applicable Authority or other Person or otherwise, and no other
Legal Action contesting such consent or approval, is in effect or pending and as
to  which  the  time or  deadline  for  filing  any  such  appeal,  petition  or
application  or other Legal  Action has expired or, if filed,  has been  denied,
dismissed or  withdrawn,  and the time or deadline for  instituting  any further
Legal Action has expired.


                                       A-6


<PAGE>



         GAAP shall mean means,  except to the extent that a deviation therefrom
is expressly required by this Agreement, such principles applied on a consistent
basis,  (i) as set forth in Opinions of the Accounting  Principles  Board of the
American  Institute  of  Certified  Public   Accountants   ("AICPA")  and/or  in
statements of the Financial  Accounting  Standards  Board that are applicable in
the  circumstances as of the date in question,  (ii) when not inconsistent  with
such  opinions  and  statements,  as set forth in other AICPA  publications  and
guidelines  and/or  (iii)  that  otherwise  arise by custom  for the  particular
industry, all as the same shall exist on the date of this Agreement.

         Governmental  Authorizations  shall  mean all  approvals,  concessions,
consents,   franchises,   licenses,  permits,  plans,  registrations  and  other
authorizations  of all  Authorities,  including  without  limitation  the United
States Forest  Service and the Federal  Aviation  Administration,  in connection
with the  ownership  or  operation  of the Diablo  Assets or the  conduct of the
Diablo Business.

         Governmental  Filings shall mean all filings,  including  franchise and
similar Tax  filings,  and the payment of all fees,  assessments,  interest  and
penalties associated with such filings, with all Authorities.

         Hart-Scott-Rodino Act shall mean the Hart-Scott-Rodino  Improvement Act
of 1976, as from time to time in effect, or any successor law, and any reference
to any  statutory  provision  shall be deemed to be a reference to any successor
statutory provision.

         Hazardous  Materials  shall mean and include any  substance,  material,
waste, constituent, compound, chemical, natural or man-made element or force (in
whatever state of matter):  (a) the presence of which requires  investigation or
remediation under any Environmental  Law, or (b) that is defined as a "hazardous
waste" or  "hazardous  substance"  under any  Environmental  Law; or (c) that is
toxic, explosive,  corrosive,  etiologic,  flammable,  infectious,  radioactive,
carcinogenic,   mutagenic  or  otherwise  hazardous  and  is  regulated  by  any
applicable Authority or subject to any Environmental Law; or (d) the presence of
which on the real property owned or leased by such Person causes or threatens to
cause a nuisance upon any such real property or to adjacent  properties or poses
or threatens to pose a hazard to the health or safety of persons on or about any
such real property;  or (e) the presence of which on adjacent  properties  could
constitute a trespass by such Person; or (f) that contains gasoline, diesel fuel
or other  petroleum  hydrocarbons,  or any  by-products  or  fractions  thereof,
natural gas,  polychlorinated  biphenyls ("PCBs") and PCB-containing  equipment,
radon or other radioactive elements,  ionizing radiation,  electromagnetic field
radiation  and other  non-ionizing  radiation,  sonic  forces and other  natural
forces,  lead,  asbestos  or  asbestos-containing  materials  ("ACM"),  or  urea
formaldehyde foam insulation.

         Indebtedness  shall mean,  with  respect to any Person,  (a) all items,
except  items of  capital  stock or of  surplus  or of  general  contingency  or
deferred tax reserves or any minority  interest in any Subsidiary of such Person
to the extent such interest is treated as a liability with indeterminate term on
the  consolidated  balance sheet of such Person,  which in accordance  with GAAP
would be included in  determining  total  liabilities  as shown on the liability
side of a balance sheet of such Person, (b) all obligations  secured by any Lien
to which any property or asset owned or held by such Person is subject,  whether
or not the obligation  secured  thereby shall have been assumed,  and (c) to the
extent not  otherwise  included,  all  Contractual  Obligations  of such  Person
constituting  capitalized leases and all obligations of such Person with respect
to Leases constituting part of a sale and leaseback arrangement.

         Indebtedness  for Money  Borrowed  shall mean,  with respect to Diablo,
money borrowed and Indebtedness represented by notes payable and drafts accepted
representing   extensions  of  credit,  all  obligations   evidenced  by  bonds,
debentures,  notes or other similar instruments, the maximum amount currently or
at any time thereafter  available to be drawn under all  outstanding  letters of
credit  issued  for the  account of such  Person,  all  Indebtedness  upon which
interest charges are customarily paid by such Person,

                                       A-7


<PAGE>



and all Indebtedness (including capitalized lease obligations) issued or assumed
as full or partial  payment for  property or  services,  whether or not any such
notes,  drafts,  obligations or Indebtedness  represent  Indebtedness  for money
borrowed,  but shall not include (a) trade payables, (b) expenses accrued in the
ordinary course of business, (c) customer advance payments and customer deposits
received in the ordinary course of business, or (d) conditional sales agreements
not prohibited by the terms of this Agreement.

         Indemnity  Escrow  Agent shall have the meaning  given to it in Section
6.2(k).

         Indemnity  Escrow  Agreement  shall  have  the  meaning  given to it in
Section 6.2(k).

         Indemnity  Escrow  Fund shall have the  meaning  given to it in Section
2.3.

         Insured  Real  Property  shall have the meaning  given to it in Section
5.7.

         Intangible  Assets shall mean all assets and property  lacking physical
properties the evidence of ownership of which must  customarily be maintained by
independent  registration,  documentation,  certification,  recordation or other
means,  and  shall  include,   without  limitation,   concessions,   copyrights,
franchises,  license, patents, permits, service marks, trademarks,  trade names,
and applications with respect to any of the foregoing, technology and know-how.

         Intellectual  Property  shall mean any and all  research,  information,
inventions,  designs,  procedures,  developments,   discoveries,   improvements,
patents and applications therefor, trademarks and applications therefor, service
marks, trade names, copyrights and applications therefor,  logos, trade secrets,
drawing, plans, systems,  methods,  specifications,  computer software programs,
tapes, discs and related data processing  software (including without limitation
object and source  codes)  owned by such Person or in which it has an  ownership
interest  and all other  manufacturing,  engineering,  technical,  research  and
development data and know-how made, conceived, developed and/or acquired by such
Person,  which  relate  to the  manufacture,  production  or  processing  of any
products  developed  or sold by such  Person or which are within the scope of or
usable in connection  with such Person's  business as it may, from time to time,
hereafter be conducted or proposed to be conducted.

         Interim Adjustment shall have the meaning given to it in Section 2.3.

         Interim  Financing Note shall have the meaning given to it in the fifth
Whereas paragraph.

         Law shall mean any (a) administrative,  judicial,  legislative or other
action,  code,  consent  decree,  constitution,  decree,  directive,  enactment,
finding, guideline, law, injunction, interpretation, judgment, order, ordinance,
policy statement,  proclamation,  promulgation,  regulation,  requirement, rule,
rule of law, rule of public policy,  settlement  agreement,  statute, or writ of
any  Authority,  domestic  or  foreign;  (b) the common  law,  or other legal or
quasi-legal  precedent;  or (c)  arbitrator's,  mediator's  or referee's  award,
decision,  finding or recommendation;  including, in each such case or instance,
any interpretation,  directive,  guideline or request, whether or not having the
force of law including, in all cases, without limitation any particular section,
part or provision thereof.

         Lease  shall mean any lease of  property,  whether  real,  personal  or
mixed, and all amendments thereto.

         Legal  Action  shall  mean,  with  respect to any  Person,  any and all
litigation   or   legal   or   other   actions,   arbitrations,   counterclaims,
investigations, proceedings, requests for material information by or pursuant to
the  order of any  Authority  or  suits,  at law or in  arbitration,  equity  or
admiralty, whether or not purported to

                                       A-8


<PAGE>



be  brought  on  behalf of such  Person,  affecting  such  Person or any of such
Person's business, property or assets.

         Letter of Intent shall have the meaning given to it in Section 9.11.

         Lien shall mean any of the  following:  mortgage;  lien  (statutory  or
other);  or other security  agreement,  arrangement or interest;  hypothecation,
pledge  or  other  deposit  arrangement;  assignment;  charge;  levy;  executory
seizure;   attachment;   garnishment;   encumbrance   (including  any  easement,
exception,  reservation or limitation,  right of way, and the like); conditional
sale,  title  retention  or other  similar  agreement,  arrangement,  device  or
restriction;   preemptive  or  similar  right;  any  financing  lease  involving
substantially  the same economic  effect as any of the foregoing;  the filing of
any financing  statement under the Uniform  Commercial Code or comparable law of
any  jurisdiction;  restriction on sale,  transfer,  assignment,  disposition or
other alienation; or any option, equity, claim or right of or obligation to, any
other Person, of whatever kind and character.

         Like-Kind Notice shall have the meaning given to it in Section 2.5.

         Loss and Expense shall have the meaning given to it in Section 8.2.

         material, materially or materiality for the purposes of this Agreement,
shall, unless specifically stated to the contrary,  be determined without regard
to the fact that various  provisions of this Agreement set forth specific dollar
amounts.

         Material  Agreement shall mean, with respect to Diablo, any Contractual
Obligation  which (a) was not entered into in the  ordinary  course of business,
(b) was entered into in the ordinary  course of business  which (i) involved the
purchase,  sale or lease  of  goods  or  materials,  or  purchase  of  services,
aggregating more than $20,000,  (ii) extends for more than three (3) months,  or
(iii) is not  terminable on thirty (30) days or less notice  without  penalty or
other payment,  (c) involves a capitalized  lease obligation or Indebtedness for
Money  Borrowed,  (d) is or  otherwise  constitutes  a written  agency,  broker,
dealer,  license,  distributorship,  sales  representative  or  similar  written
agreement,  (e) is with the United States Forest Service or any other Authority,
or (f) involves the management by Diablo of any communication tower of any other
Person.

         Multiemployer  Plan shall mean a Plan which is a  "multiemployer  plan"
within the meaning of Section 4001(a)3 of ERISA.

         Nonassignable  Contracts  shall have the meaning given to it in Section
2.2(c).

         Nonassignable Contracts Agreement shall have the meaning given to it in
Section 6.2(n).

         Note Agreement  shall have the meaning given to it in the fifth Whereas
paragraph.

         Organic  Document  shall  mean,  with  respect  to a Person  which is a
corporation,  its charter,  its by-laws and all shareholder  agreements,  voting
trusts and similar arrangements applicable to any of its capital stock and, with
respect to a Person which is a  partnership,  its agreement and  certificate  of
partnership,  any  agreements  among  partners,  and any  management and similar
agreements  between the partnership  and any general  partners (or any Affiliate
thereof).

         Other  Agreement  shall  have the  meaning  given  to it in the  fourth
Whereas paragraph.

         Other  Agreement  Claims shall have the meaning  given to it in Section
8.3(a).

                                       A-9


<PAGE>



         PBGC shall mean the Pension Benefit Guaranty Corporation and any Entity
succeeding to any or all of its functions under ERISA.

         Permitted  Liens  shall  mean (a) Liens  current  taxes not yet due and
payable, (b) such imperfections of title, easements,  encumbrances and mortgages
or  other  Liens,  if  any,  as  are  not,  individually  or in  the  aggregate,
substantial in character,  amount or extent and do not  materially  detract from
the value, or materially interfere with the present use, of the property subject
thereto or affected thereby,  or otherwise  materially impair the conduct of the
Diablo Business,  and (c) such other Liens as are permitted by the provisions of
this Agreement to be in place on the Closing Date.

         Person shall mean any natural individual or any Entity.

         Personal  Property shall mean all of the machinery,  equipment,  tools,
vehicles, furniture, leasehold improvements, office equipment, plant, inventory,
spare parts and other  tangible  personal  property which are owned or leased by
Diablo and used or useful as of the date hereof in the  conduct of the  business
or operations of the Diablo Business,  plus such additions thereto and deletions
therefrom arising in the ordinary course of business between the date hereof and
the Closing Date.

         Plan shall mean,  with respect to any Person and at a particular  time,
any employee benefit plan which is covered by ERISA and in respect of which such
Person or an ERISA  Affiliate is (or, if such plan were terminated at such time,
would under  Section 4069 of ERISA be deemed to be) an  "employer" as defined in
Section  3(5) of ERISA,  but only to the extent that it covers or relates to any
officer, employee or other Person involved in the ownership and operation of the
Assets or the conduct of the business of the Diablo Business.

         Prepaid Expense shall mean any item which in accordance with GAAP would
be treated as an expense and which has been paid by Diablo  prior to the Closing
and relates to a period subsequent to the Closing.

         Prepaid Revenue shall mean any item which in accordance with GAAP would
be treated as revenue and which has been received by Diablo prior to the Closing
and relates to a period subsequent to the Closing.

         Private Authorizations shall mean all approvals, concessions, consents,
franchises,  licenses,  permits,  and other authorizations of all Persons (other
than   Authorities)   including   without   limitation  those  with  respect  to
Intellectual Property.

         Pro Ratable Taxes shall mean real estate and other property  Taxes,  ad
valorem Taxes,  gross  receipts  Taxes and similar Taxes,  but shall not include
federal, state or local income Taxes, franchise Taxes or other Taxes measured by
or based upon income or gain on sale or other disposition of property or assets.

         Purchase Price shall have the meaning given to it in Section 2.3.

         Retained  Accounts  Receivable  shall have the  meaning  given to it in
Section 2.4.

         Real Property shall mean all of the fee estates and buildings and other
fixtures and improvements  thereon,  leasehold  interest,  easements,  licenses,
rights to access,  right-of-  way, and other real  property  interest  which are
owned or used by Diablo as of the date hereof,  in the  operations of the Diablo
Business,  plus such additions  thereto and deletions  therefrom  arising in the
ordinary course of business between the date hereof and the Closing Date.


                                      A-10


<PAGE>



         Regulations  shall mean the federal income tax regulations  promulgated
under  the Code,  as such  Regulations  may be  amended  from time to time.  All
references  herein to specific  sections of the Regulations shall be deemed also
to refer to any  corresponding  provisions  of succeeding  Regulations,  and all
references  to  temporary  Regulations  shall  be  deemed  also to  refer to any
corresponding provisions of final Regulations.

         Representatives shall have the meaning given to it in Section 5.1(a).

         SEC shall mean the United States Securities and Exchange Commission, or
any successor Authority.

         Securities Act shall mean the Securities Act of 1933, and the rules and
regulations of the SEC  thereunder,  all as from time to time in effect,  or any
successor  law,  rules or  regulations,  and any  reference to any  statutory or
regulatory  provision  shall  be  deemed  to be a  reference  to  any  successor
statutory or regulatory provision.

         Spight shall have the meaning given to it in Section 6.2(j).

         Spight  Noncompetition  Agreement shall have the meaning given to it in
Section 6.2(j).

         Subsidiary shall mean, with respect to a Person,  any Entity a majority
of the capital stock  ordinarily  entitled to vote for the election of directors
of which,  or if no such voting stock is  outstanding,  a majority of the equity
interests of which, is owned directly or indirectly, legally or beneficially, by
such Person or any other Person controlled by such Person.

         Tax (and "Taxable",  which shall mean subject to Tax), shall mean, with
respect to any Person,  (a) all taxes (domestic or foreign),  including  without
limitation any income (net, gross or other including  recapture of any tax items
such as  investment  tax  credits),  alternative  or add-on  minimum tax,  gross
income,  gross receipts,  gains,  sales, use, leasing,  lease, user, ad valorem,
transfer, recording, franchise, profits, property (real or personal, tangible or
intangible),  fuel,  license,  withholding on amounts paid to or by such Person,
payroll,  employment,  unemployment,  social security, excise, severance, stamp,
occupation, premium, environmental or windfall profit tax, custom, duty or other
tax, or other like  assessment or charge of any kind  whatsoever,  together with
any  interest,  levies,  assessments,  charges,  penalties,  addition  to tax or
additional  amount  imposed  by any Taxing  Authority,  (b) any joint or several
liability of such Person with any other Person for the payment of any amounts of
the type  described in (a) and (c) any  liability of such Person for the payment
of any  amounts  of the type  described  in (a) as a result  of any  express  or
implied obligation to indemnify any other Person.

         Tax  Allocation  Schedule shall have the meaning given to it in Section
2.3.

         Tax  Claim  shall  mean any Claim  which  relates  to Taxes,  including
without limitation the representations and warranties set forth in Section 3.11.

         Tax Return or Returns shall mean all returns, consolidated or otherwise
(including without limitation  information  returns),  required to be filed with
any Authority with respect to Taxes.

         Taxing   Authority  shall  mean  any  Authority   responsible  for  the
imposition of any Tax.

         Title Company shall have the meaning given to it in Section 5.7.

         Title Reports shall have the meaning given to it in Section 5.7.


                                      A-11


<PAGE>


         Termination Date shall have the meaning given to it in Section 7.1.

         Transactions shall mean the transactions contemplated to be consummated
on or prior to the Closing Date,  including without  limitation the purchase and
sale of the Diablo Assets and the Diablo  Business and the  execution,  delivery
and performance of the Collateral Documents.

         U.S.  Navy Claim means all  obligations,  liabilities  and other Claims
with respect to the T.V. Hill Site and the U.S. Navy,  including those of Watson
Communications  Systems,  Inc., a former  partner of Diablo  and/or  Spight with
respect  thereto and of Diablo to the U.S.  Navy with respect to its guaranty of
the obligations and liabilities of Watson Communications Systems, Inc.




                                      A-12




                                                                   EXHIBIT 10.4d

                          SECURITIES PURCHASE AGREEMENT



                                 NOTES DUE 2000

                                       of

               DIABLO COMMUNICATIONS OF SOUTHERN CALIFORNIA, INC.


                                 March 20, 1997












<PAGE>





<TABLE>
<CAPTION>
                                TABLE OF CONTENTS
                                                                                                               Page

<S>      <C>                                                                                                     <C>
         1.  Issue and Sale of Securities.........................................................................1
                  1.1  Description of Securities..................................................................1
                  1.2  Purchase and Sale..........................................................................2
                  1.3  Closing....................................................................................3

         2.  Representations and Warranties of Company............................................................4
                  2.1  Organization and Business; Power and Authority.............................................4
                  2.2  Business; Financial Information............................................................5
                  2.3  Changes in Condition.......................................................................5
                  2.4  Title to Properties; Leases................................................................5
                  2.5  Compliance with Governmental Authorizations and Applicable Law.............................6
                  2.6  Related Transactions.......................................................................7
                  2.7  Tax Matters................................................................................7
                  2.8  Employment Arrangements....................................................................7
                  2.9  Ordinary Course of Business................................................................8
                  2.10  Private Sale.............................................................................10
                  2.11  Disclosure...............................................................................10
                  2.12  Use of Proceeds..........................................................................10
                  2.13  Material Agreements and Private Authorizations...........................................10
                  2.14  Employee Retirement Income Security Act of 1974..........................................11
                  2.15  Authorized and Outstanding Capital Stock ................................................11
                  2.16  Inapplicability of Specified Statutes....................................................11

         3.  Representations, Warranties and Covenants of American...............................................11
                  3.1  Organization and Business; Power and Authority............................................12
                  3.2  Investment Representation.................................................................12
                  3.3  Covenant Regarding Transfer...............................................................13

         4.  Conditions of Closing...............................................................................13
                  4.1  Company's Officer's Certificate.  ........................................................13
                  4.2  Company's Secretary's Certificate.  ......................................................13
                  4.3  Opinion of Company Counsel.  .............................................................14
                  4.4  Legality; Governmental and Other Authorizations.  ........................................14

         5.  Payment and Exchange of Notes; Lost Notes...........................................................14
                  5.1  Payments..................................................................................14
                  5.2  Exchange..................................................................................15
                  5.3  Replacement of Notes......................................................................15
                  5.4  Transfer Office and Record of Holders of Notes............................................16
                  5.5  Transfer of Notes.........................................................................16
                  5.6  Registered Owners of Notes................................................................16
                  5.7 Limitation on Transfer of Notes............................................................17

         6.  Payment Provisions..................................................................................17

                                       

<PAGE>


                                                                                                               Page



                  6.1  Required Payments.........................................................................17
                  6.2  Restriction on Optional Payments..........................................................17
                  6.3  Notice of Payment and Offers to Repurchase................................................18
                  6.4  Maturity; No Reissue......................................................................18
                  6.5  Purchase of Notes.........................................................................18

         7.  Special Covenants of Company........................................................................18
                  7.1  Payments..................................................................................18
                  7.2  Prompt Payment of Taxes and Indebtedness..................................................19
                  7.3  Conduct of Business.......................................................................19
                  7.4  Maintenance of Property and Leases........................................................19
                  7.5  Maintenance of Insurance..................................................................20
                  7.6  Maintenance of Accounts and Records.......................................................20
                  7.7  Compliance With Laws......................................................................20
                  7.8  Miscellaneous Information.................................................................20
                  7.9  Information and Reports to Be Furnished by Company........................................21
                  7.10  Liens....................................................................................22
                  7.11  Distributions............................................................................22
                  7.12  Consolidation, Merger and Acquisition....................................................23
                  7.13  Prohibited Transactions..................................................................24
                  7.14  Compliance with ERISA....................................................................24
                  7.15  Indebtedness.............................................................................24
                  7.16 Operation of the Business.................................................................24
                  7.17  Issue of Equity Securities...............................................................25

         8.  Defaults.  .........................................................................................25
                  8.1  Events of Default.........................................................................25
                  8.2  Notice to the Holders.....................................................................27
                  8.3  Annulment of Defaults.....................................................................28
                  8.4  Waiver by Company; Severability of Remedies...............................................28
                  8.5  No Waiver of Rights.......................................................................28
                  8.6  Costs and Expenses of Collection..........................................................29
                  8.7  Remedies Cumulative.......................................................................29
         9.  Definitions.........................................................................................29

         10.  Miscellaneous Provisions...........................................................................41
                  10.1  Stamp and Other Taxes....................................................................41
                  10.2  Expenses.................................................................................41
                  10.3  Survival of Covenants; Successors and Assigns............................................42
                  10.4  Notices and Communications...............................................................42

                                      -ii-

<PAGE>


                                                                                                               Page



                  10.5  Amendments and Waivers...................................................................43
                  10.6  Governing Law; Venue.....................................................................43
                  10.7  Entire Agreement.........................................................................43
                  10.8  Saturdays, Sundays, Holidays, etc........................................................44
                  10.9  Brokers, etc.............................................................................44
                  10.10  Headings; Counterparts..................................................................44
                  10.11  Severability............................................................................44
                  10.12  Further Assurances......................................................................44
                  10.13  Specific Performance; Other Rights......................................................45
                  10.14  Non-Recourse Obligation.................................................................45
</TABLE>

SCHEDULES:

         DISCLOSURE SCHEDULE

EXHIBITS

         Exhibit A:        Form of Note
         Exhibit B:        Form of Additional Compensation Certificate


                                      -iii-

<PAGE>





         THIS SECURITIES PURCHASE AGREEMENT (this "Agreement"), made as of March
20, 1997, by and between Diablo  Communications of Southern California,  Inc., a
California  corporation  (the  "Company"),  and American Tower Systems,  Inc., a
Delaware corporation ("American" or the "Purchaser").

                              W I T N E S S E T H:

         WHEREAS,  American  and the  Company are parties to a letter of intent,
dated as of December 19, 1996,  as amended as of the date hereof (the "Letter of
Intent"), relating to an asset purchase agreement to be negotiated, executed and
delivered  by the parties  (the  "Acquisition  Agreement"),  with respect to the
acquisition  (the  "Acquisition")  by  American  of  substantially  all  of  the
communications  tower  and  management  business  of the  Company  (the  "Diablo
Business");

         WHEREAS,  the  Company  proposes to issue and sell on the date hereof a
Note in the principal amount of $750,000 and American is willing to purchase the
Initial Note in order to provide funds to the Company for corporate purposes;

         WHEREAS,  American  and  Diablo  Communications,   Inc.,  a  California
corporation  ("DCSC"),  are parties to a letter of intent,  dated as of December
19,  1996,  as  amended  as of the date  hereof  (the "DCI  Letter of  Intent"),
relating to an asset purchase agreement to be negotiated, executed and delivered
by  the  parties  (the  "DCI  Acquisition  Agreement"),   with  respect  to  the
acquisition  (the "DCI  Acquisition")  by American of  substantially  all of the
property and assets and the communications  tower and management business of DCI
(collectively, the "DCI Business"); and

         WHEREAS, American and DCI have, simultaneously executed and delivered a
Note Purchase  Agreement,  substantially in the form of this Agreement (the "DCI
Note  Agreement"),  pursuant to which DCI will issue up to Seven  Hundred  Fifty
Thousand Dollars ($650,000) in aggregate principal amount of notes of like tenor
to the Notes (the "DCI Notes") and additional compensation  certificates of like
tenor  to  the  Additional   Compensation   Certificates  (the  "DCI  Additional
Compensation Certificates");

         NOW,  THEREFORE,  for and in consideration of the premises,  the mutual
covenants and agreements herein contained, and other valuable consideration, the
receipt and  adequacy  whereof  are hereby  acknowledged,  the  parties  hereto,
intending to be legally bound, do hereby covenant and agree as follows:

         1.  Issue and Sale of Securities.

         1.1  Description  of  Securities.  The Company has duly  authorized the
issue and sale, on the terms hereinafter  provided, of the Note. As used herein,
the term  "Notes"  shall  mean the Note  together  with  any  notes  issued  and
delivered  in  exchange  or  substitution  therefor or for any other Notes or on
transfer of the Initial Note or any other Notes as herein  provided and the term
"Note" shall mean any of the Notes.  The Notes shall be in or  substantially  in
the form set forth in Exhibit A hereto. Each Note shall be dated the date of its
issue, shall mature on June 30, 2000, shall bear

                                                        

<PAGE>



interest  from the date of its issue,  at an annual rate equal to the Prime Rate
on the unpaid  principal  balance  thereof,  compounded  on the last day of each
calendar month, commencing January 31, 1997, while such Note is outstanding, and
payable at maturity, including by way of acceleration or otherwise, and interest
at the rate of 2% per annum in excess of what would  otherwise have been paid on
any  overdue  principal  and,  to the extent  legally  enforceable,  any overdue
interest.  Interest  on the Notes  shall be  computed  on the basis of a 360-day
year.  Subject to Section 8.1,  the  outstanding  principal  amount of the Notes
shall be paid in accordance  with the provisions of Section 6.1. The term "Prime
Rate"  shall  mean the rate,  from time to time,  published  in the Wall  Street
Journal and each change in the Prime Rate shall effect a simultaneous  change in
the minimum rate of interest payable on the Notes.

         The Company has duly authorized the issuance,  on the terms hereinafter
provided,  of certificates  representing rights to additional  compensation (the
"Additional  Compensation  Certificates")  as determined in accordance  with the
provisions of the Additional  Compensation  Certificates.  The term  "Additional
Compensation  Certificates" shall mean any Additional Compensation  Certificates
issued and delivered in exchange or substitution therefor or on transfer thereof
as therein provided;  and the term "Additional  Compensation  Certificate" shall
mean  any  of  the   Additional   Compensation   Certificates.   The  Additional
Compensation  Certificates shall be in or substantially in the form set forth in
Exhibit B hereto.  Each Additional  Compensation  Certificate shall be dated the
date of its issue.

         1.2  Purchase  and  Sale.  On  the  basis  of the  representations  and
warranties  and on the terms and  subject  to the  conditions  set forth in this
Agreement,  the Company  agrees to issue and deliver to  American,  and American
agrees to acquire from the  Company,  the Note and the  Additional  Compensation
Certificates  at a purchase  price (the  "Purchase  Price") equal to 100% of the
principal amount of the Note,  except that the loans evidenced by the Note shall
be advanced  not more  frequently  than once a month,  on such date (an "Advance
Date") not less than three (3) business days  subsequent to delivery to American
by the Company of a request for an advance (an "Advance Request"), in accordance
with the following schedule:

                     Month                               Cumulative Advances

                  March 1997                                  $350,000
                  April 1997                                  $550,000
                  May 1997                                    $700,000
                  June 1997                                   $750,000

Notwithstanding  the  foregoing,  American  shall not be  obligated  to make any
advance  (a) upon the  occurrence  and during  the  continuance  of a  Potential
Default  or Event of  Default  or (b) if the Notes  shall  have  become  due and
payable  pursuant to the  provisions  of Section  6.1.  The Company and American
agree that the Purchase Price shall be allocable to the Notes and the Additional
Compensation  Certificates  in  accordance  with their  respective  fair  market
values.


                                       -2-

<PAGE>



         1.3 Closing.  The Closing (the  "Closing")  shall be held at such time,
place and manner not later than  January 31,  1997 as the  Company and  American
shall  agree  (the date on which the  Closing  occurs  being  herein  called the
"Closing Date").  At the Closing,  the Company will deliver to American the Note
in the  principal  amount of $650,000  registered  in the name of  American,  in
exchange for the initial advance requested by the Company in accordance with the
provisions  of  Section  1.2 by  American  in the form of bank  wire  transfers,
evidenced by an advice of bank credit issued by a member of the Federal  Reserve
System,  in the amount of such requested  advance.  Such wire transfers shall be
made to such account as the Company shall have  designated by notice to American
at least one (1) business day in advance of the Closing.

         Upon the request of  American,  the Company  shall  prepare and file an
application  with the California  Department of  Corporations an application for
qualification of the Additional Compensation  Certificates and/or the Notes (the
"California  Application")  under the  provisions of Chapter 2 of the California
Corporate Securities Law of 1968, as amended (the "California  Securities Law").
The Company shall thereafter use its best efforts to secure the qualification of
the Additional  Compensation  Certificates and/or the Notes under the California
Securities  Law. The Company and American shall each bear fifty percent (50%) of
any and all costs and expenses of the  preparation  and filing of the California
Application,  and securing the issuance of the qualification,  including without
limitation  filing and processing  fees,  attorneys fees,  accountants  fees and
other costs and expenses.

         Promptly  after  the  effective  date  of  the   qualification  of  the
Additional  Compensation  Certificates and/or the Notes, and in any event within
three (3) days after the effective date of such qualification,  the Company will
issue and deliver to American one Additional Compensation Certificate registered
in the name of American, subject to the Company's and American's compliance with
such  terms  and   requirements  as  may  be  imposed  by  the  Commissioner  of
Corporations as a condition of the qualification.

         In the event that such  qualification  does not become effective within
six (6) weeks (or such longer  period as American  may, in its sole  discretion,
agree) after the filing of the California  Application,  American shall have the
right to  contribute  the Notes in exchange  for  interests in one or more joint
ventures  agreements with the Company with respect to the communication sites in
which the proceeds of the loans  theretofore made or to be made pursuant to this
Agreement are used.  Such joint ventures shall be on terms and conditions  which
afford  to  American  and the  Company  (i)  substantially  equivalent  economic
benefits  and  obligations  to those  which  they would  have  received  had the
Additional  Compensation  Certificates and/or the Notes been qualified under the
California  Securities  Law and  issued  and  delivered  to  American,  and (ii)
substantially  equivalent  rights and  obligations as contemplated in the Notes,
the  Additional  Compensation  Certificates  and this Agreement and otherwise on
terms and conditions reasonably acceptable to the Company and American.

         Subsequent advances by American shall be made by American in accordance
with the  provisions  of Section 1.2 upon  receipt by American of (a) an Advance
Request  accompanied  by  an  officer's  certificate  to  the  effect  that  the
representations and warranties contained in Section 2 shall

                                       -3-

<PAGE>



be true and correct in all material  respects on and as of the Advance  Date; no
Material  Adverse  Change  affecting  the  Company  shall be pending  or, to the
Company's knowledge,  threatened; no event which constitutes an Event of Default
or a Potential  Default  shall have  occurred and be  continuing  on the Advance
Date, (b) an officer's certificate  specifying in reasonable detail the proposed
use of such advance,  and (c) American's having approved such use, such approval
not to be unreasonably withheld, delayed or conditioned.

         2.  Representations  and Warranties of Company.  The Company represents
and warrants that:

         2.1  Organization and Business; Power and Authority.

                  (a) The Company (i) is a corporation  duly organized,  validly
         existing and in good  standing  under the laws of its  jurisdiction  of
         organization, and (ii) has all requisite power and authority (corporate
         and other) to own or hold under lease its properties and to conduct its
         business as now conducted and as presently proposed to be conducted.

                  (b) The Company has adequate  power and  authority  (corporate
         and other) and all necessary  franchises,  permits,  licenses and other
         rights  and  privileges  to allow it to  execute  and  deliver,  and to
         perform  its  obligations   under,  this  Agreement,   the  Notes,  the
         Additional  Compensation  Certificates and each other Related Agreement
         to  which  it is a  party,  and to  issue  and  sell  the  Note and the
         Additional  Compensation  Certificates.  The  execution,  delivery  and
         performance of this Agreement,  the Notes, the Additional  Compensation
         Certificates  and each of the  other  Related  Agreements  to which the
         Company is a party have been duly authorized by all requisite corporate
         action,  including  that, if required,  of the Company's  stockholders.
         This Agreement constitutes,  and the Notes, the Additional Compensation
         Certificates  and each other  Related  Agreement to which it is a party
         when executed and delivered by the Company will  constitute,  valid and
         binding  obligations  of the Company,  enforceable  in accordance  with
         their respective terms, except as (i) the enforceability thereof may be
         limited  by  bankruptcy,  insolvency  or  similar  laws  affecting  the
         enforcement of creditors' rights generally and (ii) the availability of
         equitable  remedies may be limited by equitable  principles  of general
         applicability.  The  holders  from  time to time of the  Notes  and the
         Additional Compensation Certificates will be entitled to the rights and
         benefits set forth in the Notes, the Additional Stock  Certificates and
         this Agreement.

                  (c) The  Company  does  not own any  voting  shares  or  other
         equitable  interest in any Person,  however  organized and however such
         interest  may be  denominated  or  evidenced,  which  owns  or has  any
         interest  in the assets and  property  or business of any of the Diablo
         Assets or the Diablo  Business,  except as set forth in the  Disclosure
         Schedule.

                  (d) The Company has adequate  power and  authority  (corporate
         and other) under the laws of its  jurisdiction of organization  and all
         necessary franchises, permits, licenses and other rights and privileges
         to allow it to execute and  deliver,  and to perform  its  obligations,
         under, the Letter of Intent and the execution, delivery and performance
         of the  Letter of  Intent  has been duly  authorized  by all  requisite
         corporate action on the part of the Company.

                                       -4-

<PAGE>



                  (e) Except as set forth in the  Disclosure  Schedule,  neither
         the execution and delivery of this Agreement, the Notes, the Additional
         Compensation  Certificates  or any of the other  Related  Agreements to
         which it is a party, nor the offer,  issue,  sale or delivery of any or
         all of the Notes, nor the  consummation of the  transactions  herein or
         therein  contemplated,  nor compliance  with the terms,  conditions and
         provisions hereof or thereof by the Company:

                           (i) will  conflict  with,  or  result  in a breach or
                  violation  of or  constitute  a  default  in the  performance,
                  observance  or  fulfillment  of any  obligation,  covenant  or
                  condition  contained  in,  or  constitute,   or  but  for  any
                  requirement  of giving of  notice or  passage  of time or both
                  would  constitute,  a default  or an event of  default  by the
                  Company  under,  any  Applicable  Law  or,  to  the  Company's
                  knowledge,    any    Private    Authorization,    Governmental
                  Authorization or Material Contractual Obligation;

                           (ii) will, to the Company's knowledge,  result in the
                  creation or imposition of any Lien upon any of the  properties
                  of the Company; or

                           (iii) will, to the Company's  knowledge,  require any
                  approval or action of, or filing with, any  Authority,  except
                  as set forth in the Disclosure Schedule.

         2.2  Business;   Financial  Information.  The  Company  has  heretofore
furnished to American  copies of the financial  statements of the Company listed
in  the  Disclosure  Schedule  (the  "Financial   Statements").   The  Financial
Statements  have been prepared in  accordance  with CAAP applied on a consistent
basis throughout the periods covered  thereby,  except as otherwise noted in the
Disclosure Schedule, are true, complete and correct in all material respects, do
not contain any untrue  statement of a material fact or omit to state a material
fact  required by CAAP to be stated  therein or  necessary  in order to make the
statements  contained  therein not misleading,  and fairly present the financial
condition of the Company and results of operations  and cash flow of the Company
on the bases therein  stated,  as of the respective  dates thereof,  and for the
respective periods covered thereby subject,  in the case of unaudited  financial
statements,  to normal year-end audit  adjustments  and accruals.  Except as set
forth in the most recent  balance  sheet  constituting  a part of the  Financial
Statements, the Company does not have any Indebtedness for Money Borrowed. As of
the Closing Date,  after giving effect to all of the  transactions  contemplated
hereby, the Company will be Solvent.

         2.3 Changes in  Condition.  Since the date of the most  recent  balance
sheet constituting a part of the Financial  Statements (the "Most Recent Balance
Sheet"), except as contemplated by this Agreement and the Letter of Intent or as
otherwise  specifically set forth in the Disclosure Schedule, (i) there has been
no Material Adverse Change of the Company.  There is, as of the date hereof,  no
fact known to the Company  which,  in the  reasonable  judgment of the  Company,
Materially  Adversely  Affects,  or might,  in the  reasonable  judgment  of the
Company (so far as the Company can now foresee),  Materially  Adversely  Affect,
the Company.

         2.4 Title to  Properties;  Leases.  The Company has good and marketable
title  in  fee  simple  to all  real  property  owned  by it and  has  good  and
merchantable title to all other assets, tangible and

                                       -5-

<PAGE>



intangible,  owned  in  fee  simple  by  the  Company  in  the  Diablo  Business
(collectively,  with the Real Property,  the "Diablo Assets"), in all cases free
and clear of all Liens securing Indebtedness for Money Borrowed,  except such as
are set forth in the Disclosure  Schedule.  All buildings,  structures,  towers,
antennae,  improvements and fixtures  comprising a part of the Diablo Assets are
in good and technically  sound operating  condition,  have no latent  structural
mechanical or other defects of material significance,  are reasonably suited for
the  purposes  for which  they are being  used and each has  adequate  rights of
ingress and egress,  utility  service for telephone and electric for the conduct
of the business and  operations of the Diablo  Business as presently  conducted,
except for such exceptions  which,  individually or in the aggregate,  would not
have a Material Adverse Effect on the Company,  except as otherwise set forth in
the Company Disclosure Schedule.

         Each  lease or other  occupancy  or other  agreement  under  which  the
Company  holds any of the Diablo Assets has been duly  authorized,  executed and
delivered  by the Company and is a legal,  valid and binding  obligation  of the
Company, enforceable in accordance with its terms. The Company, to the Company's
knowledge, has a valid leasehold interest in and enjoys peaceful and undisturbed
possession  under all such  leases.  All of such leases  are,  to the  Company's
knowledge, valid and subsisting and in full force and effect; and the Company is
not in default in the  performance,  observance or fulfillment in any respect of
any obligation,  covenant or condition  contained in any such lease,  except for
such  exceptions  which,  individually  or in the  aggregate,  would  not have a
Material Adverse Effect on the Company.

         2.5 Compliance with Governmental  Authorizations and Applicable Law. As
of the date  hereof,  there are no  judgments,  decrees or orders  issued by any
Authority  presently  outstanding  and  unsatisfied  against  the  Company.  The
Disclosure Schedule contains a brief description of

                  (a) all Legal  Actions or other Claims which are pending or in
         which the Company or its business, operations or properties, or, to the
         Company's knowledge, any of its officers,  directors or stockholders in
         connection  therewith,  is engaged,  or which  involves  the  business,
         operations or properties of the Company or, to the Company's knowledge,
         which are  threatened  or  contemplated  against,  the  Company  or its
         business,  operations or properties, or any of such officers, directors
         or  stockholders,   in  connection   therewith,   in  all  cases  which
         individually or in the aggregate could, if adversely determined, have a
         Materially Adverse Effect on the Company; and

                  (b) each Governmental Authorization which, if not obtained and
         maintained, could singly or in the aggregate, have any Material Adverse
         Effect on the Company (a "Material Governmental Authorization").

         No Governmental  Authorization is the subject of any pending or, to the
Company's  knowledge,  threatened  attack,  revocation or termination except for
such attacks,  revocations  or  terminations  as do not and will not have in the
aggregate any Material  Adverse Effect on the Company.  Neither the Company nor,
to the Company's  knowledge,  any of its officers,  directors or stockholders in
connection with the business, operations and properties of the Company, is


                                       -6-

<PAGE>



                  (i)      in  breach or  violation  or,  or in  default  in the
                           performance of, or

                  (ii)     charged  with any such  breach  or  violation  of, or
                           default under, or

                  (iii)    to the Company's knowledge,  threatened with or under
                           investigation  with  respect  to any such  breach  or
                           violation of, or default under,

any Governmental Authorization or any Applicable Law, and no Event exists or has
occurred,  which constitutes,  or but for any requirement of giving of notice or
passage  of time or both  would  constitute,  such a breach or  violation  of or
default  under  any  such  other  Material  Governmental  Authorization  or  any
Applicable Law,  except for such defaults,  breaches or violations as do not and
will not have in the aggregate any Material Adverse Effect on the Company.

         2.6 Related  Transactions.  The Disclosure  Schedule sets forth a fair,
complete and accurate in all material  respects  description of any  Contractual
Obligation  or  transaction  relating to any of the Diablo  Assets or the Diablo
Business between the Company and any of its officers, directors or stockholders,
or any  Affiliate  of any  thereof  (other  than for  services  as, or loans and
advances in the ordinary  course of business  to, any  thereof),  now  existing,
including without  limitation any providing for the furnishing of services to or
by,  providing for rental of property,  real,  personal or mixed, to or from, or
providing  for the  lending  or  borrowing  of  money  to or  from or  otherwise
requiring  payments to or from,  any such officer,  director or  stockholder  or
Affiliate,  except  for such as (a) will not  survive  the  consummation  of the
Acquisition or (b) are on terms at least as favorable to the Company as would be
obtained with Persons who are not Affiliated with the Company.

         2.7 Tax Matters.  The Company  has, at all times during its  existence,
been and is taxable as a Subchapter S  corporation  for federal and state income
Tax  purposes.  To the  Company's  knowledge,  (a)  all  Tax  Returns  which  in
accordance  with  Applicable Law are required to be filed by or on behalf of the
Company have been filed and all Taxes which have become due and payable pursuant
to  said  returns  and  all  estimated  Taxes  due and  payable  and  all  other
governmental  charges  and  assessments  due and  payable by or on behalf of the
Company have been paid,  (b) such returns have been prepared in accordance  with
all  Applicable  Laws, and (c) all Taxes which the Company is required by law to
withhold and collect have been duly withheld and  collected,  and have been paid
over,  in a timely  manner,  to the  proper  Authorities  to the  extent due and
payable, except as otherwise set forth in the Disclosure Schedule..

         2.8 Employment Arrangements. The Company is not now and during the past
five  years  has  not  been  subject  to or  involved  in or,  to the  Company's
knowledge,  threatened  with any union  elections,  petitions  therefor or other
organizational  activities,  relating to any of the Diablo  Assets or the Diablo
Business, except as described in the Disclosure Schedule. Except as described in
the Disclosure Schedule, none of the employees of the Company involved in any of
the Diablo Assets or the Diablo  Business is  represented  by any labor union or
other employee collective bargaining  organization or is a party to any labor or
other  collective  bargaining  agreement,  and there are no pending  grievances,
disputes  or  controversies  with any  union or any other  organization  of such
employees,  or threats of strikes,  work  stoppages  or any pending  demands for
collective bargaining

                                       -7-

<PAGE>



by any  union or  organization,  or,  to the  Company's  knowledge,  any  active
organizing or recruiting of such employees  with respect to becoming  members of
any union or other employee or collective bargaining organization.

         2.9  Ordinary  Course of  Business.  With respect to each of the Diablo
Assets and the Diablo  Business,  the  Company  from the end of its Most  Recent
Fiscal Year to the date  hereof,  and until the Closing  Date,  except as may be
described on the  Disclosure  Schedule or as may be required or permitted by the
terms of this Agreement or the Letter of Intent:

                  (a) has  operated,  and will  continue to operate,  the Diablo
         Business in the normal,  usual and customary manner in the ordinary and
         regular course of business;

                  (b) has not sold or  otherwise  disposed of, and will not sell
         or otherwise  dispose of or contract to sell or  otherwise  dispose of,
         any of the  properties  or  assets of any of the  Diablo  Assets or the
         Diablo  Business,  other  than  nonmaterial  amounts of  machinery  and
         equipment  sold or  otherwise  disposed  of in the  ordinary  course of
         business and no longer  needed in the operation or business or replaced
         with assets of like kind or better kind and quality;

                  (c) except in each case in the ordinary  course of business of
         each of the Diablo Assets and the Diablo Business,

                           (i)  has  not   incurred   and  will  not  incur  any
                  obligations or liabilities (fixed, contingent or other);

                           (ii) has not  entered  and will  not  enter  into any
                  commitments; and

                           (iii) has not sold or transferred,  and will not sell
                  or  transfer,  any  tangible  asset or  canceled or cancel any
                  debts or claims;

                  (d) has not made and will not make any  additions  to property
         or  any  purchases  of  machinery  or  equipment,   except  for  normal
         maintenance and replacements;

                  (e) has not discharged or satisfied, and will not discharge or
         satisfy,  any Lien or paid or pay any obligation or liability (absolute
         or contingent)  other than current  liabilities  or  obligations  under
         contracts  then  existing or  thereafter  entered  into in the ordinary
         course of business,  and commitments under leases existing on that date
         or incurred since that date in the ordinary course of business;

                  (f) has not  placed  and will not place,  or  permitted  to be
         placed or permit to be placed,  any Lien on any of the Diablo Assets or
         the Diablo Business,  and has not  Transferred,  and will not Transfer,
         any of the Diablo Assets or the Diablo Business;

                  (g) has not  committed  or  suffered  to  exist,  and will not
         commit or suffer to exist, any Act of Bankruptcy;

                                       -8-

<PAGE>



                  (h) has not increased  and will not increase the  compensation
         payable  or to  become  payable  to  any of  its  officers,  employees,
         advisers, consultants, salesmen or agents involved in any of the Diablo
         Assets or the Diablo  Business,  has not and will not otherwise  alter,
         modify or change in any material  respect the terms of their employment
         or  engagement,  and has not  entered  and  will  not  enter  into  new
         employment  arrangements  with any of the foregoing,  other than in the
         ordinary  course of  business of the Diablo  Business  and on terms and
         conditions consistent with prior practices;

                  (i) has not suffered any material damage,  destruction or loss
         (whether or not covered by insurance) or any  acquisition  or taking of
         property by any Authority;

                  (j)  has not  waived,  and  will  not  waive,  any  rights  of
         substantial value without fair and adequate consideration;

                  (k)  has not experienced any work stoppage;

                  (l) has not  amended,  and will  not  amend,  in any  material
         respect,  has not terminated or entered into, and will not terminate or
         enter into, or become (or permit any of its property to be) bound by or
         subject   to   any   lease,   Governmental    Authorization,    Private
         Authorization,  Material Agreement,  Employment  Arrangement or Plan or
         any Contractual Obligation or transaction with any Affiliate;

                  (m) has not  amended  or  terminated  and  will  not  amend or
         terminate  (unless  replaced),  and will keep in full  force and effect
         including  without  limitation  renewing  to the  extent the same would
         otherwise expire or terminate,  insurance policies and coverage meeting
         the standards of Section 7.5;

                  (n) has not done any act or failed to do any act, and will not
         do any act or fail to do any act,  if such act or  failure to act might
         result in the expiration, revocation, suspension or modification of any
         of its Governmental Authorizations or Material Private Authorizations;

                  (o) has not issued, sold or purchased or agreed to issue, sell
         or  purchase  and will not issue,  sell or  purchase or agree to issue,
         sell or purchase,  any capital stock or any  Convertible  Securities or
         Option Securities;

                  (p) has not declared,  made or paid or agreed to declare, make
         or pay, and will not have declared,  made or paid or agreed to declare,
         make or pay, any Distribution; and

                  (q) has not entered into,  and will not enter into,  any other
         transaction or series of related  transactions which individually or in
         the  aggregate  is Material  to any of the Diablo  Assets or the Diablo
         Business.

         The  Company  will notify  American  of any and all Events  which would
require any material change to be made in the Disclosure  Schedule insofar as it
relates to it or which could cause or result

                                       -9-

<PAGE>



in any  material  breach or  inaccuracy  of the  Company's  representations  and
warranties including without limitation those set forth in this Section or which
could materially  impair the likelihood that all of the conditions  specified in
Section 4 will be satisfied on or prior to the Closing Date.

         2.10  Private  Sale.  The Company has not,  directly or  indirectly  or
through  anyone acting on its behalf,  offered any of the Notes,  the Additional
Compensation  Certificates  or any similar  securities for sale to, or solicited
any offers to buy any thereof  from,  or otherwise  approached  or negotiated in
respect thereof with, any Person or Persons other than American, and the Company
agrees that neither it nor any agent on its behalf will offer to sell any of the
foregoing  securities,  or solicit any offers to buy any  thereof,  or otherwise
approach  or  negotiate  with any Person in respect  thereto,  or take any other
action,  so as to  bring  the  issuance  and  sale  of any of the  Notes  or the
Additional  Compensation  Certificates under the registration  provisions of the
Securities Act.

         2.11  Disclosure.  To the Company's  knowledge,  neither the Disclosure
Schedule nor any other document,  certificate or statement furnished to American
by or behalf of the company in  connection  with the  transactions  contemplated
hereby  contains  any untrue  statement  of a material  fact or omits to state a
material fact required to be stated  therein or necessary to make the statements
therein not misleading.

         2.12 Use of Proceeds. The Company shall use the proceeds of the sale of
the Note and the Additional  Compensation  Certificates to American hereunder to
complete the development of new communication sites and capital improvements to,
but not  personnel  costs,  maintenance  or other expense items of, its existing
communication  sites. At the election of the Company,  such proceeds may also be
used to replenish  funds used for such expenses  incurred  subsequent to October
31, 1996.

         2.13  Material  Agreements  and Private  Authorizations.  Except as set
forth on the disclosure Schedule:

                  (a) the Company has  obtained all Private  Authorizations  and
         Material  Agreements which are necessary for the ownership by it of the
         properties and assets  constituting a part of the Diablo Assets and the
         conduct  of the  Diablo  Business  as  now  conducted  or as  presently
         proposed to be  conducted or which,  if not  obtained  and  maintained,
         could, individually or in the aggregate, have a Material Adverse Effect
         on the Company;

                  (b) As of the date hereof, all of such Material Agreements are
         valid, binding and legally enforceable  obligations of the Company and,
         to the  knowledge  of the  Company,  the other party  thereto,  and the
         Company is validly and  lawfully  operating  the business of the Diablo
         Assets and the Diablo Business and owning or using the related property
         under each of such Material Agreements;

                  (c)  No  such  Private  Authorization  is the  subject  of any
         pending or, to the Company's knowledge,  threatened attack,  revocation
         or termination; and


                                      -10-

<PAGE>



                  (d) As of the date  hereof,  the Company has duly  complied in
         all respects with all of the terms and conditions of each such Material
         Agreement  and  each  such  Private  Authorization  and has not done or
         performed,  or failed to do or perform (and there is no pending, or, to
         the Company's knowledge,  threatened, Claim that the Company has not so
         complied,  done and  performed or fail to do and perform) any act which
         would  invalidate  or provide  grounds for the other  party  thereto to
         terminate  (with  or  without  notice,  passage  of  time or  both)  or
         materially impair its rights or benefits of, or materially increase the
         costs to, the Company, under any of such Material Agreements or Private
         Authorizations,  except,  in all  cases,  for  such  exceptions  which,
         individually  or in the  aggregate,  would not have a Material  Adverse
         Effect on the Company.

         2.14 Employee  Retirement  Income Security Act of 1974. The Company has
not at any  time  during  the  past  five  years  made  and  is not  making  any
contribution  to any Plans and is not bound by any Plan  relating  to any of its
employees  involved in the ownership and  operations of any of the Diablo Assets
or the Diablo Business,  except as set forth in the Disclosure  Schedule.  As to
all such Plans and except as listed in the Disclosure  Schedule,  all such Plans
comply  and have been  administered  in form and in  operation  in all  material
respects with all Applicable Laws. The Company is not and never has been a party
to any Multiemployer Plan or made contributions to any such Plan.

         2.15  Authorized  and  Outstanding  Capital Stock . The  authorized and
outstanding  capital  stock of the  Company  is as set  forth in the  Disclosure
Schedule.  All of such  outstanding  capital stock has been duly  authorized and
validly  issued,  is fully  paid and  nonassessable  and is not  subject  to any
preemptive or similar  rights.  Except as set forth in the Disclosure  Schedule,
(i) there is neither  outstanding  nor has the Company  agreed to grant or issue
any shares of capital stock or any Option  Security or Convertible  Security and
(ii) the  Company  is not a party to or is not  bound by any  agreement,  put or
commitment  pursuant to which it is obligated  to purchase,  redeem or otherwise
acquire  any  shares of  capital  stock or any Option  Security  or  Convertible
Security.

         2.16 Inapplicability of Specified Statutes.  The Company is not, to its
knowledge, a "holding company", or a "subsidiary company" or an "affiliate" of a
"holding  company",  as such terms are  defined in the  Public  Utility  Holding
Company  Act of 1935,  as  amended,  or an  "investment  company"  or a  company
"controlled"  by or acting on behalf of an "investment  company",  as defined in
the Investment Company Act of 1940, as amended, or a "carrier" or a person which
is in control of a "carrier", as defined in sections 10102 or 11301 of Title 49,
U.S.C.  The Company is not engaged in the business of  extending  credit for the
purpose of  purchasing  or  carrying  any  margin  stock  within the  meaning of
Regulations G and U of the Board of Governors of the Federal Reserve System.

         3.  Representations,  Warranties  and  Covenants of American.  American
represents and warrants that:


                                                       -11-

<PAGE>



         3.1  Organization and Business; Power and Authority.

         (a) American (i) is a corporation duly organized,  validly existing and
in good  standing  under  the laws of the  state of  Delaware,  and (ii) has all
requisite  power and authority  (corporate and other) to own or hold under lease
its  properties  and to conduct its business as now  conducted  and as presently
proposed to be conducted.

         (b) American has adequate power and authority (corporate and other) and
all necessary franchises,  permits,  licenses and other rights and privileges to
allow it to execute and  deliver,  and to perform its  obligations  under,  this
Agreement  and each  other  Related  Agreement  to which it is a party;  and the
execution,  delivery and  performance  of this  Agreement and each other Related
Agreement  to which it is a party  have been duly  authorized  by all  requisite
corporate action. This Agreement  constitutes,  and each other Related Agreement
to which it is a party, when executed and delivered by American will constitute,
valid and binding obligations of American,  enforceable in accordance with their
respective  terms,  except as (i) the  enforceability  thereof may be limited by
bankruptcy,  insolvency or similar laws affecting the  enforcement of creditors'
rights generally and (ii) the availability of equitable  remedies may be limited
by equitable principles of general ap plicability.

         (c) Neither the execution and delivery of this  Agreement or any of the
other  Related  Agreement to which it is a party,  nor the  consummation  of the
transactions  herein or therein  contemplated,  nor  compliance  with the terms,
conditions and provisions hereof or thereof by American:

                  (i) will conflict  with, or result in a breach or violation of
         or constitute a default in the  performance,  observance or fulfillment
         of any obligation,  covenant or condition  contained in, or constitute,
         or but for any  requirement  of giving of notice or  passage of time or
         both would  constitute,  a default  or an event of default by  American
         under,   any  Applicable  Law,  Private   Authorization,   Governmental
         Authorization or Contractual Obligation, or

                  (ii) will  require any  approval or action of, or filing with,
         any Authority, except as United States and state securities,  antitrust
         and communications laws may apply.

         3.2  Investment Representation.

         (a) American is an "accredited investor" within the meaning of Rule 501
promulgated  under the Securities Act and has been furnished with and had access
to all  information,  financial  and  other,  and  has  the  opportunity  to ask
questions  of the  management  of the  Company  with  respect to the Company and
American's proposed investment therein.

         (b) American is  acquiring  the Notes and the  Additional  Compensation
Certificates  to be purchased by it for its own account for  investment  with no
present intention of distributing or reselling the same, subject,  nevertheless,
to its right,  subject  to the  provisions  of  Section  5.7 of the Notes and of
Section  2(d) of the  Additional  Compensation  Certificates,  to dispose of the
Notes and

                                      -12-

<PAGE>



the  Additional  Compensation  Certificates  or any  part  thereof  in its  sole
discretion;  provided, however, that notwithstanding the foregoing, American may
pledge any or all of the Notes and the Additional  Compensation  Certificates to
any bona fide lender to American.  American  understands that the Company is not
and will not be required to file a registration  statement  under the Securities
Act in connection with any sale,  transfer or other  disposition of the Notes or
the Additional Compensation Certificates.

         3.3 Covenant Regarding Transfer.  American covenants and agrees that it
will not sell, assign,  transfer or otherwise dispose of any of the Notes or the
Additional Compensation Certificates in violation of the Securities Act.

         4. Conditions of Closing.  American's  obligation to purchase the Notes
and the Additional  Compensation  Certificates shall be subject to compliance by
the Company with its agreements herein  contained,  to the truth and accuracy in
all material respects of the certificates to be furnished to it pursuant to this
Section,  the truth and accuracy in all material respects of the representations
and  warranties  made by the  Company  herein,  and to the  condition  that  all
instruments  and  corporate  and  legal  matters  incident  to the  transactions
contemplated by this Agreement shall be reasonably  satisfactory in form,  scope
and  substance to American and its counsel,  and American and its counsel  shall
have received all information and copies of all documents,  including records of
corporate  proceedings,  which  it or its  counsel  may  reasonably  request  in
connection  therewith,  such  documents  where  requested or  appropriate  to be
certified  by  proper  corporate  or  governmental   authorities,   and  to  the
satisfaction on the Closing Date of the following further conditions:

         4.1 Company's Officer's  Certificate.  Subject to the provisions of the
Letter of Intent, (a) the representations and warranties  contained in Section 2
shall be true and  correct in all  material  respects  on and as of the  Closing
Date; (b) no Material  Adverse Change affecting the Company shall be pending or,
to the Company's knowledge,  threatened; and (c) no event which if the Notes had
been outstanding immediately prior to the Closing Date would constitute an Event
of Default or a Potential  Default  shall have occurred and be continuing on the
Closing  Date.  American  shall have  received on the Closing Date a certificate
dated  the  Closing  Date to such  effect,  and to the  effect  that each of the
conditions  set  forth  in this  Section  has  been  satisfied  in all  material
respects, signed by an authorized executive officer of the Company.

         4.2 Company's Secretary's Certificate.  A certificate,  dated as of the
Closing  Date,  executed by the Company's  secretary:  (i)  certifying  that the
resolutions, as attached to such certificate,  were duly adopted by the Board of
Directors  of the  Company,  authorizing  and  approving  the  execution of this
Agreement by the Company and the  consummation of the  transaction  contemplated
hereby  and that such  resolutions  remain in full  force and  effect;  and (ii)
providing,  as attachments  thereto, a certificate of good standing certified by
an appropriate California state official as of a date not more than fifteen (15)
days before the Closing  Date and by the  Company's  secretary as of the Closing
Date, and a copy of the Company's  Articles of  Incorporation  and By-Laws as in
effect on the date  thereof,  certified  by the  Company's  secretary  as of the
Closing Date.


                                      -13-

<PAGE>



         4.3 Opinion of Company Counsel.  American shall have received favorable
opinions,  dated the Closing Date and reasonably satisfactory in scope, form and
substance  to it and its  counsel,  from  counsel  for the  Company,  (i) to the
effects stated in Sections  2.1(a),  2.1(b),  2.1(d) (limited to corporate power
and authority),  2.1(e) (to such counsel's knowledge), and 2.16, and (ii) to the
effect  that the  offer,  issue,  sale  and  delivery  of the  Notes  under  the
circumstances contemplated by this Agreement constitute transactions exempt from
the registration  provisions of the Securities Act, and neither the registration
thereunder  of the Notes or the  Additional  Compensation  Certificates  nor the
qualification  of this  Agreement  under the  Trust  Indenture  Act of 1939,  as
amended to date, is required.

         4.4  Legality;  Governmental  and Other  Authorizations.  Except as set
forth on the Disclosure Schedule,  the purchase of and payment for the Notes and
the Additional  Compensation  Certificates shall not be prohibited by any law or
governmental order or regulation  applicable to American,  and shall not subject
American  to any  penalty,  tax,  liability  or  other  onerous  condition.  All
necessary consents, approvals,  licenses, permits, orders and authorizations of,
or registration,  declaration or filing with, any Authority or any other Person,
with respect to the transactions contemplated hereby shall have been obtained or
made and shall be in full force and effect.

         5.  Payment and Exchange of Notes; Lost Notes.

         5.1  Payments.  Any other  provision of this  Agreement or of the Notes
notwithstanding,

                  (a) interest,  principal and any premium to be paid in respect
         of any  Note  held by  American  or its  nominee  shall be paid by wire
         transfer of  immediately  available  funds to such accounts as may from
         time to time be  designated  in writing by  American,  or in such other
         reasonable  manner, or at such other address,  as may from time to time
         be designated in writing by American by notice given in accordance with
         the provisions of this Agreement;

                  (b)  interest,  principal  and any  premium  to be paid to any
         subsequent Holder of Record that is an Institutional  Investor shall be
         paid by wire transfer (or such other reasonable  manner as requested in
         writing by such  Holder of Record) of  immediately  available  funds to
         such Holder of Record at such  address in the United  States of America
         as may from time to time be  designated  in writing  to the  Company by
         such Holder of Record by notice given in accordance with the provisions
         of this Agreement; and

                  (c)  interest,  principal  and any  premium  to be paid to any
         other Holder of Record shall be paid by mailing a check (in the case of
         interest)  and  certified  or bank  cashier's  check  (in  the  case of
         principal)  to such  Holder of Record,  at the  address of such  Holder
         shown on the register  maintained  pursuant to the  provisions  of this
         Agreement, or such other address in the United States of America as may
         from time to time be  designated  in  writing  to the  Company  by such
         Holder of Record by notice given in accordance  with the  provisions of
         this Agreement.


                                      -14-

<PAGE>



         Interest,  principal  and any premium to be paid in respect of any Note
shall be paid without any presentment or notation of payment,  and the amount of
principal  so paid on any Note shall be  regarded  as having  been  retired  and
canceled  at the time of  payment.  Each  Holder of  Record  of any Note  shall,
however, at any time during its regular business hours on any day when a payment
of principal is due, permit the Company at the office of the Holder of Record of
such Note to make  appropriate  notation on such Note of the amount of principal
which  has been paid  thereon,  if the  Company  at least  fifteen  (15) days in
advance shall have requested in writing permission to make such notation. Before
the  transfer of any Note,  the Holder of Record  thereof  shall make a notation
thereon  of the  date to which  interest  has  been  paid  and of all  principal
payments  theretofore  made thereon,  and shall in writing notify the Company of
the name and address of the transferee,  but  notwithstanding the giving of such
notice,  such transferee shall not be considered a Holder of Record of such Note
until it shall have complied  with the  provisions of Section 5.4. Any Note with
respect to which  interest,  principal and any premium has been fully paid shall
be marked paid in full and  surrendered  to the Company and shall be retired and
canceled.

         5.2 Exchange.  Subject to the  provisions of Section 5.7, the Holder of
Record  of any of the  Notes  may,  prior to  maturity  or  prepayment  thereof,
surrender  any Note  held by it for  exchange  at the  principal  office  of the
Company.  Within a reasonable time thereafter and without expense to such Holder
of Record, the Company shall, subject to the provisions of Section 5.7, issue in
exchange therefor another Note or Notes of the same issue for the same aggregate
principal  amount as the  unpaid  principal  amount of the Note so  surrendered,
having the same maturity and rate of interest,  containing  the same  provisions
and subject to the same terms and conditions as the Note so surrendered, in such
denomination or denominations as the Holder of Record making such exchange shall
request; provided,  however, that if the issue of more than one such new Note is
requested,  such new Notes shall be issued only in denominations of $10,000,  or
larger amounts which are integral multiples of $10,000,  except that one Note so
issued shall be for the amount by which the unpaid  principal amount of the Note
or Notes so surrendered exceeded an integral multiple of $10,000.  Each such new
Note shall be  payable to such  Person or  Persons,  or order,  as the Holder of
Record of such  surrendered  Note or Notes may  designate  in writing,  and such
exchange  or  transfer  shall be made in such a  manner  that no gain or loss of
principal or interest shall result  therefrom.  Any Note issued and delivered in
accordance  with the provisions of this Section shall be dated as of the date to
which interest has been paid on the Note exchanged therefor.  The Company agrees
that it will pay shipping and  insurance  charges from and to the main office of
any  Institutional  Investor  involved in any  exchange or transfer of a Note or
Notes held by it.  Notwithstanding the foregoing provisions of this Section, the
Company  shall not be required  to issue and  deliver any new Notes  pursuant to
this Section unless it is indemnified  against and held harmless from any United
States and state  documentary  stamp or similar  excise  taxes and any  transfer
taxes.

         5.3  Replacement  of Notes.  Upon  receipt by the  Company of  evidence
satisfactory  to it of the loss,  theft,  destruction or mutilation of any Note,
and (in case of loss, theft or destruction) of indemnity satisfactory to it, and
upon reimbursement to the Company of all reasonable expenses incidental thereto,
and upon surrender and cancellation of any Note, if mutilated,  the Company will
make and  deliver a new Note of like  tenor in lieu of such Note in a  principal
amount equal to the sum of the then unpaid  principal  amount of,  together with
accrued and unpaid interest on, such lost,

                                      -15-

<PAGE>



stolen,  destroyed or mutilated  Note. Any Note made and delivered in accordance
with  the  provisions  of this  Section  shall  be dated as of the date to which
interest has been paid on the Note lost,  stolen,  destroyed  or  mutilated  and
shall indicate that it is being issued in  substitution  for, but not in payment
of, the lost,  stolen,  destroyed or mutilated Note. The term "outstanding" when
used in this Agreement  with  reference to the Notes as of any  particular  time
shall  not  include  any Note in lieu of  which a new  Note  has  been  made and
delivered by the Company in  accordance  with the  provisions of this Section or
any Note held by the  Company.  Notwithstanding  any  provision  to the contrary
herein or in the Notes, if any Note of which any  Institutional  Investor is the
holder  is lost,  stolen  or  destroyed,  then the  affidavit  of the  principal
financial   officer  of  such   Institutional   Investor,   setting   forth  the
circumstances with respect to such loss, theft or destruction, shall be accepted
as  satisfactory  evidence  thereof,  and no  indemnity  shall be  required as a
condition  to the  execution  and  delivery  of a new Note or  Notes  for a like
aggregate principal amount, other than a written agreement by such Institutional
Investor,  in form  reasonably  satisfactory  to the Company,  to indemnify  the
Company  against  loss on account of the making of any payment in respect of any
such lost or stolen Note to any Person legally entitled to such payment.

         5.4 Transfer Office and Record of Holders of Notes. The Company will at
all times  keep or cause to be kept,  at the  principal  office of the  Company,
appropriate records for the registration and transfer of the Notes,  identifying
the Holders of Record,  from time to time,  of the Notes,  and shall cause to be
recorded  therein the names and  addresses of the Holders of Record of the Notes
from time to time, and any and all transfers thereof;  provided,  however,  that
the Company  shall be required to record the transfer of a Note only if and when
a  subsequent  holder  shall have (a)  presented  such Note to the  Company  for
inspection,  properly  endorsed  or  assigned  and in order  for  transfer,  (b)
delivered to the Company a written  notice of its  acquisition of such Note, and
(c) designated in writing an address to which payments on and notices in respect
of such Notes shall be transmitted.

         5.5 Transfer of Notes.  Subject to the  provisions  of this  Agreement,
including  without  limitation  Section 5.7, any Note may be  transferred at the
principal office of the Company by surrender thereof for cancellation,  endorsed
or  accompanied  by  a  written  instrument  of  transfer,  in  form  reasonably
satisfactory  to the  Company,  duly  executed  by or on behalf of the Holder of
Record,  and  thereupon  the Company will issue and deliver,  in the name of the
transferee or transferees,  a new Note, for a like aggregate  principal  amount,
dated as of the date to which interest has been paid on the Note so transferred.

         5.6 Registered Owners of Notes. Except as provided in Section 5.1 (with
respect to places of payment  designated  by American or a Holder of Record) and
Section  10.4 (with  respect to notices to  nominees  designated  as such),  the
Company and all other Persons may treat the registered  holder,  as shown on the
records maintained  pursuant to Section 5.4, of any Note, for the time being, as
the owner thereof for the purposes of receiving  payment of the principal of and
premium,  if any, and interest on such Note and for all other purposes,  and the
Company  shall not be  affected  by any  notice or  knowledge  to the  contrary,
whether  payments on the Notes  shall be overdue or not;  and the  Company,  and
every  successive  registered  holder and  assignee  of a Note by  accepting  or
holding  the same,  shall be deemed to have  consented  to and  agreed  with the
provisions of this Section.

                                      -16-

<PAGE>



         5.7  Limitation  on  Transfer of Notes.  Anything in this  Section 5 or
elsewhere  in this  Agreement  to the  contrary  notwithstanding,  prior  to the
earlier of  September  30,  1997 or the  acceleration  of the Notes by  American
pursuant to the  provisions of Section 6.1, the Notes shall not be  transferable
by American (or any of its Affiliates) except (a) to an Affiliate of American or
(b) to one or more bona fide lenders to American or any of its Affiliates.

         6.  Payment Provisions.

         6.1 Required Payments. Subject to the provisions of Section 6.2(a), the
Notes shall be paid in their entirety, without premium but with interest accrued
and unpaid  thereon to the date of  payment,  upon the  earliest to occur of (a)
consummation  of the  Acquisition  (in which event the Company  may, in its sole
discretion,  elect  to  have  the  Notes  assumed  by  American  as part of such
transaction in which event the  consideration  to be delivered by American shall
be reduced by an amount  equal to the  principal  amount of the Notes so assumed
and  accrued and unpaid  interest  thereon to the date of  assumption),  (b) the
occurrence of the  Acquisition  Termination  Date,  and either (i) the demand by
American  for payment  thereof or (ii) the election of the Company to prepay the
Notes, in either case, in its sole discretion, and (c) June 30, 2000.

         6.2 Restriction on Optional Payments. The Company may prepay the Notes,
in whole but not in part, either:

                  (a)  in  the  event  of  the  occurrence  of  the  Acquisition
         Termination  Date, the Company may, in its sole  discretion,  elect, at
         any time within ninety (90) days of the  occurrence of the  Acquisition
         Termination  Date,  to prepay the  Notes,  at their  principal  amount,
         without  premium but with  interest  accrued and unpaid  thereon to the
         date of payment,  either in cash or pursuant to an agreement  customary
         in comparable  transactions  and  reasonably  satisfactory  to American
         relating to the purchase and sale of the DCSC Business,  free and clear
         of all Liens,  except as otherwise set forth in Exhibit B to the Letter
         of Intent.  Such  agreement  shall (i) provide for a purchase price for
         the DCSC  Business  equal to (A) the sum of  $4,200,000  and an  amount
         equal to the  amount of any  capital  improvements  made by DCSC or the
         Company  to the DCSC  Assets  since  October  31,  1996,  minus (B) the
         principal  amount of the Notes and the DCSC  Notes,  plus  accrued  and
         unpaid  interest  on the  Notes  and  the  DCSC  Notes  to the  date of
         consummation of such purchase and sale (which shall be on such date not
         earlier than  December 15, 1997 and not later than December 31, 1997 as
         American  and the Company may agree),  and (ii)  contain such terms and
         conditions as are customary in comparable  transactions  and reasonably
         satisfactory to the Company and American.

                  (b) except as provided  in Section  6.2(a),  for cash,  at any
         time after December 31, 1997, at their  principal  amount together with
         interest  accrued to the date of payment;  provided,  however,  that it
         shall be a  condition  of the  Company's  right  to  prepay  the  Notes
         pursuant to the provisions of this Section 6.2(b) that,  simultaneously
         with such prepayment,  DCI shall have prepaid in their entirety the DCI
         Notes.


                                      -17-

<PAGE>



         6.3 Notice of Payment and Offers to Repurchase. Notice of each required
or optional  payment of Notes  pursuant to Section 6.1 or 6.2 and each  optional
offer to repurchase  pursuant to Section 6.5 shall be given not less than thirty
(30) nor more than  sixty  (60) days  before  the date of  payment  or  proposed
repurchase date, and all such notices shall be given by mailing by registered or
certified  mail to each  Holder of Record of Notes to be paid or  repurchased  a
notice of intention, or offer, to pay or repurchase,  which notice shall include
statements  specifying  (a) the date of the  intended  payment  or the  proposed
repurchase  date,  (b) the  provision of this  Agreement  pursuant to which such
payment or offer is being made, (c) the aggregate  principal amount of the Notes
to be paid,  or to which such offer to  repurchase  relates,  (d) the  principal
amount  of the Notes  registered  in the name of such  Holder to be paid,  or to
which such offer to repurchase relates, and (e) the premium, if any, and accrued
interest  to be paid in respect  of the  principal  amount so to be paid,  or to
which such offer to repurchase relates.

         6.4 Maturity; No Reissue. Notes or portions thereof to be paid pursuant
to any provision of this  Agreement  shall become due and payable on the payment
date,  together  with accrued  interest and premium,  if any, and from and after
such date  (unless the  Company  shall  default in paying the amounts  then due)
interest  thereon  shall  cease  to  accrue.  Any  Note  paid in full  shall  be
surrendered  to the Company and canceled and shall not be reissued,  and no Note
shall be issued in respect of any paid principal amount of any Note, and no such
paid Note or paid portion of a Note shall be considered to be "outstanding"  for
any purpose hereof.

         6.5  Purchase of Notes.  The Company  will not, and will not permit any
Subsidiary  to,  purchase  or  otherwise  acquire  any Note except (a) by way of
payment in accordance  with the provisions of the Notes and this  Agreement,  or
(b) pursuant to a repurchase  offer made by the Company pro rata and on the same
terms  to  each  Holder  of  Record  of  Notes  to be  repurchased  at the  time
outstanding,  pursuant to a notice  given in  accordance  with Section 6.3 which
notice  shall state  whether such offer may be accepted in part or only in full,
and shall  provide that any such ac ceptance  may be given by written  notice to
the Company in  accordance  with the  provisions  of this  Agreement at any time
prior to such  date,  not less than  thirty-five  (35) days from the date of the
notice of the Company's offer under this Section as shall be specified  therein.
Any Notes repurchased pursuant to this Section shall be canceled by the Company,
and shall not be reissued or deemed to be "outstanding"  for any purpose of this
Agreement.

         7. Special Covenants of Company. Without limiting any other covenant or
provision  hereof,  the Company  covenants and agrees that so long as any of the
Notes are outstanding,  it shall comply with,  perform and observe the following
covenants  and  provisions  and shall cause each  Subsidiary,  if any, to comply
with,  perform and observe  said  covenants  and  provisions  as are  applicable
thereto  (it being  understood,  in any  event,  that to the  extent  any of the
covenants of this Section refer to consolidated financial information they shall
apply to the Company only in the event that the Company has no Subsidiaries).

         7.1 Payments. The Company will duly and punctually pay the principal of
and premium,  if any, and interest on the Notes in accordance  with the terms of
this Agreement and the Notes.


                                      -18-

<PAGE>



         7.2 Prompt  Payment of Taxes and  Indebtedness.  The Company will,  and
will  cause  each of its  Subsidiaries  to,  pay  promptly,  or cause to be paid
promptly,  all taxes,  assessments and other  governmental  charges or levies of
whatever nature imposed on it, or upon it or its income or profits,  or upon any
of its property,  real, personal or mixed;  provided,  however,  that unless and
until foreclosure,  distraint sale or other similar  proceedings shall have been
commenced, nothing herein shall require the Company or any Subsidiary to pay any
such tax,  assessment,  charge or levy so long as the validity  thereof shall be
currently contested in good faith by appropriate  proceedings and if the Company
or such Subsidiary shall have set aside on its books reserves deemed adequate by
the Company's  Independent  Accountants  with respect thereto in accordance with
CAAP,   consistently  with  the  Financial   Statements  delivered  to  American
hereunder. The Company will, and will cause each of its Subsidiaries to, (a) pay
or cause to be paid  when due all  payments  of  principal  of and  premium  and
interest on  Indebtedness  for Money  Borrowed and will not permit or suffer any
such Indebtedness for Money Borrowed to become or remain in default,  (b) pay or
cause to be paid when due all lawful claims for labor and rents,  and (c) pay or
cause to be paid in a manner consistent with prudent business practice all trade
payables and pay or cause to be paid when due all other  Indebtedness upon which
it is or becomes obligated, except, in each case, other than that referred to in
clause  (a),  to the  extent  payment  is  being  contested  in  good  faith  by
appropriate  proceedings  and if the Company or such  Subsidiary  shall have set
aside  on its  books  reserves  deemed  adequate  by the  Company's  Independent
Accountants with respect thereto in accordance with CAAP,  consistently with the
Financial  Statements   delivered  to  American  hereunder,   unless  and  until
foreclosure,  distraint  sale or  other  similar  proceedings  shall  have  been
commenced.

         7.3 Conduct of  Business.  Subject to the  provisions  of the Letter of
Intent and, if executed and delivered,  the Acquisition Agreement (so long as it
shall  remain in  effect),  the  Company  (a) will,  and will  cause each of its
Subsidiaries  to, continue to engage in the business of owning and operating the
Diablo Assets and conducting the Diablo  Business and (b) will do or cause to be
done all things reasonably  necessary to preserve,  renew and keep in full force
and effect  and in good  standing  its  corporate  existence  and its rights and
franchises necessary to conduct such business. Notwithstanding clause (b) of the
preceding  sentence,  the Company may merge or cause any Subsidiary to be merged
with or into the Company or another  Subsidiary,  or may cause any  Wholly-Owned
Subsidiary which is a Wholly-Owned Subsidiary of another Subsidiary to liquidate
and distribute its assets and liabilities to such latter Subsidiary.

         7.4  Maintenance  of Property and Leases.  Subject to the provisions of
the Letter of Intent and, if executed and delivered,  the Acquisition  Agreement
(so long as it shall remain in effect), the Company will, and will cause each of
its  Subsidiaries  to: (a) keep its assets and property  relating to each of the
Diablo  Assets  and the  Diablo  Business  in good  repair,  working  order  and
condition, and from time to time will make all repairs, renewals,  replacements,
additions  and  improvements  thereto so that its  business  may be properly and
advantageously  conducted at all times; and (b) comply in all material  respects
with the provisions of all leases of real or personal  property relating to each
of the Diablo  Assets and the  Diablo  Business  to which it is a party or under
which it oc cupies or uses  property  so as to  prevent  any loss or  forfeiture
thereof or thereunder; provided, however, that the Company or any Subsidiary may
cancel,  surrender  or  modify  any such  lease if such  action  is deemed to be
advantageous to the Company's or such Subsidiary's business.

                                      -19-

<PAGE>



         7.5  Maintenance of Insurance.  Subject to the provisions of the Letter
of Intent and, if executed and delivered,  the Acquisition Agreement (so long as
it shall remain in effect), the Company will, and will cause each Subsidiary to:
(a) keep its assets and property  relating to each of the Diablo  Assets and the
Diablo  Business which are of an insurable  character and which are  customarily
insured by companies of  established  reputation  engaged in the same or similar
business  similarly situated insured by financially sound and reputable insurers
against  loss or  damage by fire,  explosion  and  hazards  insured  against  by
extended coverage in amounts sufficient to prevent the Company or any Subsidiary
from  becoming  a  co-insurer;  and (b)  maintain  with  financially  sound  and
reputable  insurers  insurance  against other hazards and risks and liability to
persons and property, to the extent and in the manner customary for companies of
established  reputation  engaged  in the same or  similar  businesses  similarly
situated.

         7.6  Maintenance  of Accounts and Records.  The Company will,  and will
cause each of its  Subsidiaries  to,  keep true  records and books of account in
which full, true and correct  entries will be made of dealings and  transactions
in relation to the  ownership and operation of the Diablo Assets and the conduct
of the Diablo Business, in accordance with CAAP consistently applied,  except as
otherwise set forth in the Disclosure Schedule,  and shall prepare the financial
statements  required to be furnished  pursuant to Section 7.9. The Company will,
and  will  cause  each  Subsidiary  to,  apply  accounting   principles  in  the
preparation  of the financial  statements  of the Company and its  Subsidiaries,
which, in the judgment of the Company,  are in accordance with CAAP consistently
applied,  except that no notes shall be required with respect thereto and except
as otherwise set forth in the Disclosure  Schedule.  In the event of a change in
any method of accounting used by the Company or any Subsidiary that is permitted
by this  Agreement,  such  change  shall  not be deemed to result in an Event of
Default if, at the time of such change, an Event of Default had not occurred and
was not then continuing, based upon the former methods of accounting used by the
Company;  provided,  however,  that,  if,  after any such  change in  accounting
methods,  either the Company or American (or the holders of the Notes) determine
in good faith that any requirements of this Agreement are substantially  altered
as a result of such change,  the Company and American agree to negotiate in good
faith with respect to a change in such requirements.

         7.7 Compliance  With Laws. The Company will, and will cause each of its
Subsidiaries  to, comply with all  Applicable  Laws in respect of the conduct of
the Diablo  Business and the  ownership of the assets and property of the Diablo
Assets,  except  such as are being  contested  in good faith and except for such
noncompliances  as will not in the aggregate  have a Material  Adverse Effect on
the Company.

         7.8  Miscellaneous  Information.  From time to time upon  request,  the
Company  will  furnish  to each  Holder  of any of the  Notes  such  information
regarding the business, properties, financial condition and results of operation
of the  Company  and its  Subsidiaries  in such  detail  as may  reason  ably be
requested;   and  the  Company   covenants   and  agrees  that  any   authorized
representative of any such Holder shall have the right,  reasonably exercisable,
to  visit  and  inspect  any of the  properties  of  the  Company  or any of its
Subsidiaries,  to examine and to discuss  their  affairs,  finances and accounts
(including  without  limitation  any letters of comment  with respect to audits,
letters to  management or  confidential  reports  relating to financial  matters
submitted to the Company or its

                                      -20-

<PAGE>



Subsidiaries by independent  public  accountants) with, and be advised as to the
same by, their  officers,  all at such  reasonable  times and  intervals as such
Holder may reasonably request.

         7.9  Information  and Reports to Be Furnished  by Company.  The Company
will furnish to each Holder of any of the Notes:

                  (a) Financial  Statements.  The following financial statements
         relating  to  each  of the  Diablo  Assets  and  the  Diablo  Business,
         substantially in the form customarily prepared by the Company:

                           (i)  Quarterly  Reports.  In  duplicate  as  soon  as
                  available and, in any event, within forty-five (45) days after
                  the end of each quarter  (including the last) of the Company's
                  fiscal year, a balance sheet, and related statements of income
                  and retained earnings and cash flow for such period (including
                  year to date),  together with  comparative  figures as at such
                  date or for the same periods of the preceding year and for the
                  Company's  budget  for such  fiscal  year,  all in  reasonable
                  detail,  accompanied  by supporting  statements and schedules,
                  normally prepared by the Company in connection therewith,  and
                  accompanied  by a certificate  of the  principal  financial or
                  accounting  officer  of the  Company  (A)  stating  that  such
                  statements have been properly prepared in accordance with CAAP
                  and are true,  correct and complete in all  material  respects
                  and fairly  present the financial  condition of the Company at
                  and as of the dates thereof and the results of its  operations
                  for  the  periods  covered  thereby  subject  only  to  normal
                  non-material year-end accounting adjustments,  and (B) stating
                  that he has reviewed  this  Agreement  and has no knowledge of
                  any breach of or default under the  provisions of Section 7.10
                  through 7.15, both  inclusive,  or Section 7.17, or, if he has
                  such  knowledge,  specifying  such  breach or default  and the
                  nature  thereof and the period of  existence  thereof and what
                  action the  Company  has taken,  is taking or proposes to take
                  with respect thereto.

                           (ii)  Monthly  Reports.   In  duplicate  as  soon  as
                  available and, in any event, within forty-five (45) days after
                  the end of each month  (including  the last) of the  Company's
                  fiscal year, a balance sheet, and related statements of income
                  and retained earnings and cash flow for such period (including
                  year to date),  together with  comparative  figures as at such
                  date or for the same periods of the preceding year and for the
                  Company's  budget  for  such  fiscal  year,  all in  the  form
                  customarily prepared for management.

                           (iii)  Annual  Statements.  In  duplicate  as soon as
                  available  and,  in any event,  within one  hundred and twenty
                  (120) days after the end of each fiscal year of the Company, a
                  balance sheet,  and related  statements of income and retained
                  earnings   and  cash  flow  for  such  year,   together   with
                  comparative  figures as at the end of and for the  immediately
                  preceding  fiscal year and for the  Company's  budget for such
                  fiscal  year,  all  in  reasonable   detail,   accompanied  by
                  supporting statements and schedules,  normally prepared by the
                  Company in connection therewith, and

                                      -21-

<PAGE>



                  accompanied  by (A) a letter from a firm of  certified  public
                  accountants  to the  effect  that  it has  reviewed  (but  not
                  audited)  such  statements,  and  (B)  a  certificate  of  the
                  principal  financial or accounting officer of the Company with
                  respect to the  matters  set forth in clause (B) of  paragraph
                  (i) of this subdivision.

                           (iv) Annual Budget. in duplicate as soon as available
                  and,  in any event,  on or prior to March 1 of each  year,  an
                  annual budget with respect to the Diablo Assets and the Diablo
                  Business  containing,  in reasonable detail,  information with
                  respect to the balance sheet,  statements of income and retain
                  earnings,  cash flow and Capital Expenditures for the calendar
                  year,  all in a form  substantially  similar  to  those of the
                  financial  statements required to be delivered pursuant to the
                  provisions of this Section 7.9(a); and, thereafter,  promptly,
                  from time to time  during the course of such year,  amendments
                  to such annual budget.

                           (v) Reports to Stockholders  or Others.  In duplicate
                  promptly upon the sending,  making  available or filing of the
                  same, copies of all proxy statements, registration statements,
                  prospectuses,   reports  and  financial  statements  that  the
                  Company shall send or make  available to its  stockholders  or
                  file with the Securities and Exchange  Commission or any stock
                  exchange upon which its capital stock may be listed.

                  (b) Notice of Litigation, Event of Default, Potential Default,
         etc. The Company will  promptly  give notice of any  litigation  or any
         administrative  proceeding to which it or any  Subsidiary may hereafter
         become a party which  involves a potential  liability to the Company or
         any  Subsidiary  of at least  $50,000,  or which may have any  Material
         Adverse Effect on the Company.  Forthwith upon any executive officer of
         the Company  obtaining  knowledge of any of the following,  the Company
         shall give to American  prompt  written notice of any Change in Control
         or proposed  Change in Control,  any Act of Bankruptcy and any Event or
         Default  or  Potential  Default,  specifying  the  nature and period of
         existence  of any such Event of Default or  Potential  Default and what
         action  the  Company  has  taken,  is taking or  proposes  to take with
         respect thereto.

         7.10 Liens.  The Company will not,  and will not permit any  Subsidiary
to, create or incur, directly or indirectly, or suffer to be created or incurred
or to exist (except in favor of the Company or a Wholly-Owned  Subsidiary),  any
Lien  upon any of the  assets or  property  of any of the  Diablo  Assets or the
Diablo Business other than the Permitted Liens.

         7.11  Distributions.  The  Company  will not,  and will not  permit any
Subsidiary  to,  declare,  order,  pay or  make,  directly  or  indirectly,  any
Distribution  (other  than  dividends  paid by a  Subsidiary  to a  Wholly-Owned
Subsidiary or the Company) or set apart any sum or property  therefor,  or agree
to do so, other than in cash or cash  equivalents and then only if, after giving
effect  thereto,  (a) the Company has cash or cash  equivalents of not less than
$500,000,  (b) no  Default  or Event  of  Default  shall  have  occurred  and be
continuing,  and (d) a maximum  of debt to  tangible  net worth of not more than
1.00 to 1.00. For purposes of this Section, "effective tangible net worth",

                                      -22-

<PAGE>



"tangible  net  worth",  "debt  coverage"  and  "debt"  shall  be  determine  in
accordance  with the  provisions of the Sanwa Loan Agreement as in effect on the
date hereof.

         7.12 Consolidation,  Merger and Acquisition.  Subject to the provisions
of the  Letter of  Intent  and,  if  executed  and  delivered,  the  Acquisition
Agreement (so long as it shall remain in effect), the Company will not, directly
or indirectly:

                  (a) voluntarily  liquidate,  dissolve or otherwise wind up its
         business; or

                  (b) permit any  Subsidiary  to merge or  consolidate  with any
         Person (other than the Company or a Wholly-Owned Subsidiary) unless (i)
         the  surviving or resulting  Person is a Subsidiary  which is organized
         under  the laws of a state  of the  United  States  of  America  or the
         District of Columbia,  and (ii) no condition or event shall exist prior
         to, as a result of or immediately after giving effect to such merger or
         consolidation  which  constitutes  an Event of Default  or a  Potential
         Default,  including without  limitation the provisions of paragraph (c)
         of this Section; or

                  (c) consolidate  with or merge into another Person (other than
         a  Wholly-Owned  Subsidiary) or permit another Person to consolidate or
         merge  into  it,  or  acquire  (x) all or any  substantial  part of the
         assets,  property or business  of, or (y) any assets that  constitute a
         division or operating unit of the business of, any other Person, unless
         such  assets,  property  or  business  are or is,  as the  case may be,
         consolidated  with the Company for  financial  reporting  purposes  and
         unless

                           (i)  the  Person  surviving  such   consolidation  or
                  merger, is either (A) the Company,  or (B) an Entity which (I)
                  is organized under the laws of a state of the United States of
                  America, or the District of Columbia, and (II) shall expressly
                  assume the obligations of the Company under this Agreement and
                  under the Notes to the same extent and with the same effect as
                  though such  surviving  Person were a party hereto and thereto
                  and  were  named  and  defined  as the  "Company"  herein  and
                  therein;

                           (ii) no condition  or event shall exist,  either as a
                  result  of,  or  immediately  after  giving  effect  to,  such
                  consolidation,  merger or  acquisition  which  constitutes  an
                  Event of Default or a Potential Default;

                           (iii) none of the rights,  privileges or  preferences
                  of any holder of the Notes would be adversely affected by such
                  consolidation, merger or acquisition; and

                           (iv) in the case of any such acquisition,  all of the
                  assets,  property and  business to be acquired,  to the extent
                  they  relate  to any  of  the  Diablo  Assets  or  the  Diablo
                  Business,  shall  have  been made  subject  to the Lien of the
                  Security Agreement on terms and conditions satisfactory to the
                  holders of the Notes.


                                      -23-

<PAGE>



         7.13  Prohibited  Transactions.  Except as set forth on the  Disclosure
Schedule and marked "Permitted  Affiliated  Transactions" or as otherwise agreed
upon by the holders of the Notes,  the Company will not, and will not permit any
Subsidiary  to,  permit  to exist or enter  into any  agreement  or  arrangement
relating to any of the Diablo Assets or the Diablo  Business  whereby it engages
in a  transaction  of any kind with any  Subsidiary  (other than a  Wholly-Owned
Subsidiary), or with any other Affiliate of the Company or any Subsidiary except
on terms no less  favorable to the Company as could be obtained from Persons who
are not Affiliates of the Company..

         7.14  Compliance  with ERISA.  The Company will, and will cause each if
its Subsidiaries to, fulfill the obligations under the minimum funding standards
of ERISA and the Code with  respect to each Plan  relating  to any of the Diablo
Assets or the Diablo Business,  to the extent such minimum funding standards are
applicable,  and comply in all material  respects with the presently  applicable
provisions  of ERISA  and the  Code,  and will  not,  and  will not  permit  any
Subsidiary  to, incur any material  liability to the PBGC or any such Plan under
Title IV of ERISA.

         7.15 Indebtedness. The Company will not, and will not permit any of its
Subsidiaries  to,  create,  incur,  assume or suffer to exist any  Indebtedness,
except:

                  (a) Indebtedness pursuant to this Agreement;

                  (b) Indebtedness  (other than Indebtedness for Money Borrowed)
         arising in connection with the Permitted Liens;

                  (c)  Indebtedness  incurred in the ordinary course of business
         which does not represent Indebtedness for Money Borrowed;

                  (d)  Indebtedness  existing on the date of this  Agreement and
         set forth in the Disclosure Schedule; and

                  (e) Other  Indebtedness  for Money  Borrowed so long as, after
         giving effect  thereto and  concurrent  repayment of  Indebtedness  for
         Money Borrowed,  the aggregate  principal  amount of  Indebtedness  for
         Money  Borrowed  to be  outstanding  would  not  exceed  five (5) times
         Operating  Cash Flow for the most recent  twelve  months  ending on the
         calendar  quarter for which  financial  statements are required to have
         been delivered pursuant to the provisions of Section 7.9(a)(i), so long
         as after  giving  effect to such  Indebtedness  for Money  Borrowed  no
         Potential Default or Event of Default has occurred and is continuing.

         7.16 Operation of the Business. Subject to the provisions of the Letter
of Intent and, if executed and delivered,  the Acquisition Agreement (so long as
it shall remain in effect),  the Company and each of its  Subsidiaries  will own
and  operate the Diablo  Assets and  conduct the Diablo  Business in the normal,
usual and  customary  manner in the  ordinary  and regular  course of  business.
Without  limiting the generality of the foregoing,  subject to the provisions of
the Letter of Intent and, if executed and delivered,  the Acquisition  Agreement
(so long as it shall remain in

                                      -24-

<PAGE>



effect),  the Company will not, and will not permit any  Subsidiary to, take any
of the  following  actions  with  respect  to the  Diablo  Assets and the Diablo
Business:

                  (a)  Transfer or agree to Transfer  any of the  properties  or
         assets constituting a part of the Diablo Assets or the Diablo Business,
         other than  nonmaterial  amounts of  machinery  and  equipment  sold or
         otherwise  disposed of in the ordinary course of business and no longer
         needed in the  operation  or business  or replaced  with assets of like
         kind or better kind and quality;

                  (b) with prior practices,  (i) incur any material  obligations
         or liabilities (fixed, contingent or other); (ii) make any additions to
         its property or any  purchases of  machinery or  equipment,  except for
         normal  maintenance  and  replacements;  (iii) or agents,  and will not
         otherwise alter,  modify or change in any material respect the terms of
         their employment or engagement,  and has not entered and will not enter
         into new employment arrangements; (iv) waive, any rights of substantial
         value  without  fair  and  adequate  consideration;  (v)  amend  in any
         material  respect,  terminate or enter into or become (or permit any of
         its  property  to be) bound by or subject  to any  Lease,  Governmental
         Authorization, Private Authorization, Employment Arrangement or Plan or
         any Contractual  Obligation  which could have a Material Adverse Effect
         on the  Company;  (vi) do any act or fail to do any act, if such act or
         failure to act might result in the expiration,  revocation,  suspension
         or modification of any of its Material  Governmental  Authorizations or
         Material  Private  Authorizations;  and  (vii)  enter  into,  any other
         transaction or series of related  transactions which individually or in
         the aggregate is Material to the Company; and

                  (c) waive any condition set forth therein to consummation  of,
         or otherwise amend,  modify or terminate,  any Material  Agreement,  or
         enter into any agreement or other  arrangement which would constitute a
         Material   Agreement,   except   for  such   waivers,   amendments   or
         modifications,  or such other  agreements or arrangements as do not and
         will not have in the  aggregate  any  Material  Adverse  Effect  on the
         Company.

         The Company  shall use  reasonable  business  efforts to  preserve  the
ownership,  operation,  management,  policies and personnel of the Diablo Assets
and the  Diablo  Business,  and  shall  not  alter  such  ownership,  operation,
management,  policies, or personnel in any manner that would, individually or in
the  aggregate,  have a Materially  Adverse  Effect on the Diablo  Assets or the
Diablo Business.

         7.17 Issue of Equity  Securities.  The Company will not issue, or agree
to issue,  any shares of capital stock or any  Convertible  Securities or Option
Securities, if such issuance would result in a Change of Control of the Company.

         8.  Defaults.

         8.1 Events of Default.  If one or more of the following  events (herein
termed "Events of Default") shall have occurred, that is to say:

                                      -25-

<PAGE>



                  (a) if the Company shall fail to make payment of the principal
         of or  premium,  if any,  or, for a period of five (5)  business  days,
         interest on any of the Notes when and as the same shall  become due and
         payable, whether at their stated maturity, on a date fixed for payment,
         by a notice of payment or offer to pay, by declaration or otherwise; or

                  (b) if any representation or warranty of the Company contained
         in this  Agreement,  or any statement or  certificate  furnished by the
         Company  in  connection  with the  issue or sale of any of the Notes or
         pursuant to any  provision  of this  Agreement,  shall have been false,
         incorrect  or  misleading  in any  material  respect  when  made  or so
         certified  to,  and such  representation  and  warranty  was either (i)
         willfully and  intentionally  made as such or (ii) not so willfully and
         intentionally made, but the defect giving rise to such false, incorrect
         or misleading  representation and warranty, to the ext curable, has not
         been cured within thirty (3) days of the Company obtaining knowledge of
         the defect and,  whether or not curable,  has,  together with any other
         such false,  incorrect or misleading  representations  and  warranties,
         resulted in a Material Adverse Change in the Company; or

                  (c) if the Company or any Subsidiary  shall fail to observe or
         perform any of the  covenants,  agreements or  provisions  contained in
         Sections 7.10 through 7.13, inclusive, 7.15, 7.16 and 7.18; or

                  (d) if the  Company  or any  Subsidiary  shall  fail  duly  to
         observe or perform any other covenant, agreement or provision contained
         in this Agreement, the Notes or any other Related Agreement, other than
         those  referred  to in  subdivisions  (a),  (b) or (c) above,  and such
         failure  shall have  continued  for a period of thirty  (30) days after
         written  notice  to the  Company  from the  holders  of a  majority  in
         interest of the Notes; or

                  (e) if  the  Company  or  any  Subsidiary  shall  default,  as
         principal  or as  guarantor  or other  surety,  (i) in any  payment  of
         principal of or premium,  if any, or interest on any  Indebtedness  for
         Money  Borrowed   (other  than  the  Notes),   or  any  purchase  money
         Indebtedness in excess of $100,000,  or (ii) with respect to any of the
         terms of any evidence of such Indebtedness or of any mortgage, security
         agreement,  indenture or other  agreement  relating  thereto,  and such
         default  shall  continue  for more than the  period  of grace,  if any,
         specified therein; or

                  (f) if one or more final judgments for the payment of money in
         excess  of  $150,000  shall be  rendered  against  the  Company  or any
         Subsidiary,  and  such  judgments  shall  not be  discharged  or  their
         discharge  shall  not have been  provided  for in  accordance  with its
         terms,  or a stay of  execution  thereof  shall not have been  procured
         within thirty (30) days from the date of the entry  thereof,  or within
         said  period of thirty (30) day period (or such  longer  period  during
         which  execution on such judgment shall have been stayed),  the Company
         or such  Subsidiary  shall not have filed an appeal  therefrom (or from
         the order,  decree or  process  upon  which or  pursuant  to which said
         judgment shall have been granted, passed or entered); or


                                      -26-

<PAGE>



                  (g) if the  Company  or any of its  Subsidiaries  shall,  as a
         debtor, be involved in or commit an Act of Bankruptcy; or

                  (h) if a Change in Control with  respect to the Company  shall
         be pending or shall have occurred; or

                  (i) if the  Company  or DCI  shall  enter  into an  agreement,
         whether or not legally binding,  with respect to a Third Party Transfer
         or a Third Party Transfer shall have occurred; or

                  (j) if any  Potential  Default  or Event of  Default  (each as
         defined  in  the  DCI  Note  Agreement)  shall  have  occurred  and  be
         continuing;

then,  except as set forth below in this  Section,  (I) in the case of any event
specified in subdivision (g) of this Section,  there shall automatically  become
forthwith  due and payable the unpaid  balance of all of the Notes,  and (II) in
each and every other case  specified in this Section,  the holders of a majority
in  principal  amount  of the  Notes at the time  outstanding  may by  notice in
writing  to the  Company  declare to be  forthwith  due and  payable  the unpaid
balance of all of the Notes,  together  in any such case with  interest  accrued
thereon,  and  thereupon  such balance  shall become so due and payable  without
presentation,  protest or further demand or notice of any kind, all of which are
hereby expressly  waived by the Company;  the Holders of a majority in principal
amount of the Notes of the time  outstanding may, without being required to give
any notice  (except as may be required by law),  exercise their rights under the
Security  Agreement whether or not they elect to accelerate  payment as provided
herein;  and/or in  addition  thereto  each  Holder may  proceed to protect  and
enforce  its rights by suit in equity,  action at law and/or  other  appropriate
proceeding,  either  for  specific  performance  of any  covenant  or  provision
contained in the Notes or herein or in aid of the exercise of any power  granted
in the Notes or herein or in lieu thereof.  Notwithstanding any provision to the
contrary in this Agreement, no events other than those described in this Section
8.1 shall  constitute an Event of Default  giving rise to the  consequences  set
forth in clause (I) or (II) of the preceding sentence;  provided,  however, that
should the Event of Default giving rise to the  consequences set forth in clause
(I) or (II) of the preceding  sentence  occur prior to the  consummation  of the
transactions  contemplated by the Acquisition Agreement, the Company may, at its
sole  discretion,  elect to pay the  Notes at their  principal  amount,  without
premium,  but  including  interest  accrued  and  unpaid  thereon to the date of
payment  pursuant to an  Agreement  customary  in  comparable  transactions  and
reasonably satisfactory to American relating to the purchase and sale of the DCI
business,  free and clear of all liens, except as otherwise set forth in Exhibit
B to the  Letter  of  Intent.  Such  agreement  shall be on the same  terms  and
conditions as are set forth in Section 6.2 of this Agreement.

         8.2 Notice to the Holders.  If and  whenever  the Company  shall become
aware of the existence of any Event which constitutes,  or which after giving of
notice or passage of time or both would  constitute,  an Event of  Default,  the
Company shall  forthwith  give notice to each Holder of such  condition or event
and what  action the  Company  has  taken,  is taking or  proposes  to take with
respect thereto.  If any creditor of the Company shall take any action, of which
the Company shall

                                      -27-

<PAGE>



have actual knowledge, in respect of any Event which constitutes, or which after
giving notice or passage of time or both would constitute,  an Event of Default,
then and in any such event,  and  whether or not the Company  shall have given a
notice under the first sentence of this Section with respect to the condition or
event to which such demand or action shall relate,  the Company shall  forthwith
give to each Holder  written  notice,  specifying  such action and the nature of
such alleged default or Event of Default and what actions the Company has taken,
is taking or proposes to take with respect thereto.

         8.3  Annulment  of Defaults.  This Section is subject to the  condition
that,  if at any time after the  principal of any or all of the Notes shall have
been declared and become due and payable,  and before any judgment or decree for
the payment of the moneys so due,  or any part  thereof,  shall be entered,  all
arrears of interest upon all the Notes and all other sums payable upon the Notes
(except the  principal of and  interest on such Notes which by such  declaration
shall have become  payable) shall have been duly paid, and every other Potential
Default  and Event of Default  shall  have been made good or cured,  then and in
every such case the  Holders of a majority in  principal  amount of the Notes at
the time  outstanding may, by written  instrument or instruments  filed with the
Company, rescind and annul such declaration and its consequences.  No rescission
or  annulment  under  this Sec tion  shall  extend to or affect  any  subsequent
Potential Default or Event of Default or impair any right consequent thereon.

         8.4 Waiver by Company;  Severability of Remedies. To the fullest extent
permitted by applicable law, the Company hereby agrees to waive, and does hereby
absolutely and irrevocably  waive and relinquish,  (a) the benefit and advantage
of any valuation, stay, appraisal,  extension or redemption laws now existing or
which may hereafter exist, which, but for this provision, might be applicable to
any sale made under the  judgment,  order or decree of any court,  or otherwise,
based on the Notes or any claim for interest on the Notes; (b) all presentments,
demands  for  performance  and notices of  nonperformance  (except to the extent
required  by the  provisions  hereof);  (c) any  requirements  of  diligence  or
promptness on the part of any Holder,  as a holder of Notes,  in the enforcement
of its rights under the provisions of this  Agreement or the Notes;  and (d) any
and all notices of every kind and description  which may be required to be given
by any  statute  or rule of law and any  defense of any kind which it may now or
hereafter have with respect to its liability  under this Agreement or the Notes.
In the event any remedy or other  provision of this  Section is not  enforceable
for any reason, no other remedy or provision shall be affected thereby,  and all
such  other  remedies  and  provisions  shall be given  full force and effect in
accordance with their terms.

         8.5 No Waiver of Rights.  No course of dealing  between  the Company or
any Subsidiary and any Holder, as a holder of Notes, and no delay or omission on
the  part of any  Holder  in  exercising  any  rights  under  the  Notes or this
Agreement,  shall operate as a waiver of the rights of such Holder,  as a holder
of Notes. No failure to insist upon the strict provisions of any covenant, term,
condition  or  other  provision  of this  Agreement  or any of the  Notes  or to
exercise any right or remedy thereunder shall constitute a waiver by any Holder,
as a holder of Notes, of any such covenant,  term,  condition or other provision
or of any  Potential  Default or Event of Default in connection  therewith.  The
waiver of any  covenant,  term,  condition or other  provision  hereof or of the
Notes or Potential  Default or Event of Default  hereunder on one occasion shall
not be construed as a bar to or a waiver

                                      -28-

<PAGE>



of any right or remedy on any future occasion and shall not affect or alter this
Agreement  or the  Notes  except  to the  extent  specifically  provided  in the
instruments  setting forth such waiver  delivered  under Section 10.5, and every
covenant,  term,  condition and other  provision of this Agreement and the Notes
shall, in such event, continue in full force and effect.

         8.6 Costs and  Expenses of  Collection.  Subject to the  provisions  of
Section  10.2,  the Company  covenants and agrees that if default be made in any
payment  of  principal  of or  interest  on the  Notes,  it will,  to the extent
permitted under applicable law, pay to each Holder,  as a holder of Notes,  such
further  amount  as shall be  sufficient  to cover the  costs  and  expenses  of
collection,  including  reasonable  compensation to the attorneys of each Holder
for all services rendered in that connection.

         8.7 Remedies  Cumulative.  No remedy herein conferred upon each Holder,
as a holder of Notes or  otherwise,  is  intended to be  exclusive  of any other
remedy,  and each and every remedy shall be cumulative  and shall be in addition
to every other remedy given hereunder or now or hereafter  existing at law or in
equity or by statute or otherwise.

         9. Definitions.  As used herein, unless the context otherwise requires,
the following terms have the following respective meanings. Terms defined in the
singular  shall have a  comparable  meaning  when used in the  plural,  and vice
versa,  and the  reference to any gender shall be deemed to include all genders.
Unless otherwise defined or the context  otherwise  clearly requires,  terms for
which meanings are provided in this Agreement shall have such meanings when used
in  the  Disclosure  Schedule  and  in  each  instrument,  notice,  certificate,
communication,  opinion or other  document  executed  or required to be executed
pursuant hereto or thereto or otherwise  delivered,  from time to time, pursuant
hereto or thereto. If the Company has any Subsidiaries all financial terms shall
be deemed to apply to the Company and its Consolidated Subsidiaries,  determined
in  accordance  with CAAP  consistently  applied with the  Financial  Statements
delivered to American hereunder.

         The term  "Acquisition"  is  defined  in the first  whereas  paragraph,
preceding Section 1.

         The term  "Acquisition  Agreement"  is  defined  in the  first  whereas
paragraph, preceding Section 1, and shall include all amendments,  modifications
and supplements thereto.

         The term  "Acquisition  Termination Date" shall mean the earlier of (a)
the failure of American  and the  Company to enter into a  definitive  agreement
with respect date to the Acquisition,  regardless of the reason therefor, within
the time  permitted  by the  Letter  of  Intent  or (b) the  date on  which  the
Acquisition  Agreement,  if executed and delivered,  is  terminated,  whether in
accordance  with its terms or by American or the  Company,  and whether  with or
without cause.

         The term "Act of  Bankruptcy"  shall mean,  when used with reference to
any Person, any of the following events or occurrences:


                                      -29-

<PAGE>



                  (a) its  admitting in writing its  inability,  or being unable
         under  Applicable  Law,  or its  failing  generally,  to pay its  debts
         generally as they become due, or

                  (b) its filing a petition, answer or consent seeking relief as
         a debtor or otherwise  commencing a voluntary case under the Bankruptcy
         Code as from time to time in effect, or its authorizing, by appropriate
         proceedings of its board of directors or other governing body, any such
         petition, answer, consent or commencement of such a voluntary case; or

                  (c) the filing  against it or all or any  substantial  part of
         its  property of a petition com mencing an  involuntary  case under the
         Bankruptcy  Code which shall  remain  undismissed  for a period of more
         than  thirty (30) days or which is  consented  to by such Person or any
         order or decree  approving  relief  adverse to such  Person  thereunder
         shall remain unstayed and in effect for more than forty five (45) days;
         or

                  (d) its  commencement  of  proceedings  or filing a  petition,
         answer or consent  seeking relief as a debtor under any Applicable Law,
         other than the  Bankruptcy  Code, of any  jurisdiction  relating to the
         liquidation  or  reorganization  of debtors or to the  modification  or
         alteration  of  the  rights  of  creditors,  or  its  consenting  to or
         acquiescing  in such  relief  or its  admitting  or  acquiescing  in or
         failing promptly and in any event within thirty (30) days of the filing
         thereof, in an appropriate manner, to deny the material  allegations of
         any  petition  seeking  such  relief,  any  such  involuntary  petition
         remaining undismissed for more than thirty (30) days or an order in any
         involuntary proceeding adverse to such Person remaining unstayed and in
         effect for more than forty-five (45) days; or

                  (e) the entry of an order or decree  (whether or not final) by
         a court of  competent  jurisdiction  (i)  finding it to be  bankrupt or
         insolvent,  (ii) ordering or approving its liquidation,  dissolution or
         winding up, or  reorganization or any modification or alteration of the
         rights of its creditors,  or any  composition or readjustment of debts,
         (iii)  assuming   custody  of,  or  appointing  a  receiver,   trustee,
         sequestrator,  conservator,  assignee,  custodian,  liquidator,  fiscal
         agent or similar official for, such Person or all or a substantial part
         of its property and any such order or decree  shall  continue  unstayed
         and in effect for a period of forty-five (45) days; or

                  (f) its  convening a meeting of  creditors  for the purpose of
         consummating an out-of-court  arrangement,  or making an assignment for
         the benefit of, or entering  into a  composition,  extension or similar
         arrangement  with,  its  creditors  in respect of all or a  substantial
         portion of its debt; or

                  (g)  its  seeking  or  consenting  to or  acquiescing  in  the
         appointment  of  a  receiver,   trustee,   sequestrator,   conservator,
         liquidator,  fiscal agent or other custodian of itself or of all or any
         substantial part of its property; or

                  (h)  its winding-up, liquidation or dissolution; or


                                      -30-

<PAGE>



                  (i) its  authorization,  by appropriate action of its board of
         directors or other governing body, of any of the foregoing.

         The term "Additional  Compensation  Certificates" is defined in Section
1.1.

         The term "Affiliate",  when used with respect to any Person, shall mean
(i) any other Person at the time directly or indirectly controlling,  controlled
by or under direct or indirect  common control with such Person,  (ii) any other
Person of which  such  Person  at the time  owns,  or has the right to  acquire,
directly or indirectly  twenty percent (20%) or more on a consolidated  basis of
the equity or  beneficial  interest,  (iii) any other  Person  which at the time
owns, or has the right to acquire,  directly or indirectly  twenty percent (20%)
or more of the equity or beneficial  interest of such Person, (iv) any executive
officer or  director of such  Person,  or any Person of which such Person or any
executive  officer or director of such Person at the time owns, or has the right
to acquire,  directly or indirectly,  twenty percent (20%) of more of the equity
or beneficial interest,  and (v) when used with respect to an individual,  shall
include a spouse,  any ancestor or descendant,  or any other relative (by blood,
adoption or  marriage),  within the third  degree of such  individual.  A Person
shall be deemed to be  "controlled  by" any other  Person if such  other  Person
possesses, directly or indirectly, power to direct or cause the direction of the
management  or  policies  of such  Person or the  disposition  of its  assets or
property, whether by stock, equity or other ownership,  contract, arrangement or
understanding, or otherwise.

         The term "American" is defined in the preamble of this Agreement.

         The term "Applicable Law" shall mean any Law of any Authority,  whether
domestic  or  foreign,  including  without  limitation  all  federal  and  state
securities  Laws,  to which the Person in  question is subject or by which it or
any of its property is bound.

         The term "Authority" shall mean any governmental or  quasi-governmental
authority, whether executive, legislative, judicial, administrative or other, or
any  combination  thereof,  including  without  limitation  any federal,  state,
territorial,   county,   municipal  or  other   government  or  governmental  or
quasi-governmental agency, arbitrator, board, body, branch, bureau, central bank
or comparable  agency or entity,  commission,  corporation,  court,  department,
instrumentality,  master,  mediator,  panel, referee,  system or other political
unit or subdivision or other entity of any of the foregoing, whether domestic or
foreign.

         The term  "Bankruptcy  Code" shall mean 11 U.S.C.  ss. 101 et seq.,  as
from time to time in effect,  and any  successor  law, and any  reference to any
statutory provision shall be deemed to be a reference to any successor statutory
provision.

         The term  "CAAP""  shall  mean the  accounting  principles  used by the
Company in the preparation of the Financial  Statements and described in general
terms in the Disclosure Schedule, such principles applied on a consistent basis,
except  as  otherwise  heretofore  disclosed  in the  Disclosure  Schedule.  The
requirement  that  such  principles  be  consistently  applied  means  that  the
accounting principles in a current period are comparable in all material respect
to those applied in

                                      -31-

<PAGE>



preceding period.  All accounting and financial terms used in this Agreement and
the  compliance  with each covenant  contained in this Agreement that relates to
financial  matters  shall  be  determined  in  accordance  with  the  accounting
principles referred to in this paragraph (except as otherwise specifically noted
in certain of the  definitions  where the term GAAP is used).  In the event of a
change  in  any  method  of  accounting  used  by  the  Company  or  any  of its
Subsidiaries  that is  permitted  by this  Agreement,  such change  shall not be
deemed to result in an Event of Default if, at the time of such change, an Event
of Default had not occurred and was not then  continuing,  based upon the former
methods of accounting used by the Company;  provided,  however,  that, if, after
any such change in accounting methods,  either the Company or American determine
in good faith that any requirements of this Agreement are substantially  altered
as a result of such change,  the Company and American agree to negotiate in good
faith with respect to a change in such requirements.

         The term "California Application" is defined in Section 1.1.

         The term "California Securities Law" is defined in Section 1.1.

         The  term  "Capital  Expenditures"  shall  mean,  with  respect  to the
Company,  for any period  during which the amount  thereof is to be  determined,
without  duplication,  the  amount of all  expenses  or  liabilities  (including
without   limitation   Capital  Lease   Obligations)   incurred  or  accrued  or
expenditures  made by the Company  directly or indirectly with respect to any of
the Diablo Assets or the Diablo Business  which, in accordance with CAAP,  would
be  treated  as a  capital  expenditure,  but  shall  not  include  interest  or
amortization,  depreciation  or the like with  respect to any  previous  Capital
Expenditure.

         The term  "Capitalized  Lease  Obligation"  shall  mean  the  principal
portion  of any lease  obligation  on which in  accordance  with  CAAP  would be
characterized as a capital lease.

         The term  "Change in Control"  shall mean,  with  respect to any Person
(the "Target"), any of the following:

                  (a) the acquisition,  directly or indirectly, in a transaction
         or series of  transactions,  including  without  limitation  by merger,
         consolidation  or other  reorganization,  by any  Person  (such term to
         include  anyone  deemed a  person  under  Section  13(d)(3)  under  the
         Securities Exchange Act) of beneficial ownership (within the meaning of
         Rule 13d-3 promulgated under the Securities Exchange Act) of a majority
         or more of the capital stock or voting stock of the Target,  other than
         by (i) the Target or any of its Subsidiaries, (ii) any employee benefit
         plan or related trust of the Target or any of its  Subsidiaries,  (iii)
         any  existing  stockholder  of the  Target  who as of the  date of this
         Agreement  owns more than ten percent  (10%) of the voting stock of the
         Target  or  any  of  his  Affiliates  or  (iv)  American  or any of its
         Affiliates (an "Acquiring Person"); or

                  (b) the sale or other  disposition  of all or any  substantial
         part of the assets of the Target or, in the case of the Company, any of
         the Diablo Assets or the Diablo Business, in

                                      -32-

<PAGE>



         one transaction or series of related transactions,  including by way of
         merger,  consolidation or other  reorganization,  other than with or to
         American; or

                  (c) the  adoption  of a plan  relating to the  liquidation  or
         dissolution of the Target; or

                  (d)  the  Continuing   Directors   cease  for  any  reason  to
         constitute a majority of the directors of the Target then in office.

         For purposes of this  definition,  any transfer of any capital stock or
other equity  interest of an Entity that was formed for the purpose of acquiring
voting  stock of the Target  shall be deemed to be a transfer of such portion of
such  voting  stock as  corresponds  to the portion of the equity of such Entity
that has been so transferred.

         The term "Claims" shall mean,  with respect to any Person,  any and all
debts, liabilities, obligations, losses, damages, deficiencies,  assessments and
penalties of or against such Person, together with all Legal Actions, pending or
threatened,  claims and judgments of whatever kind and nature relating  thereto,
and all fees, costs,  expenses and disbursements  (including  without limitation
reasonable  attorneys' and other legal fees, costs and expenses) relating to any
of the foregoing.

         The terms "Closing" and "Closing Date" are defined in Section 1.3.

         The term "Code" shall mean the United States  Internal  Revenue Code of
1986,  and the rules  and  regulations  thereunder,  all as from time to time in
effect,  or any successor  law, rules or  regulations,  and any reference to any
statutory  or  regulatory  provision  shall be deemed to be a  reference  to any
successor statutory or regulatory provision.

         The term "Company" is defined in the preamble of this Agreement.

         The term  "Continuing  Director"  shall mean any member of the Board of
Directors  of a Person  who (a) is a member  of the Board of  Directors  of such
Person as of the date hereof or (b) was nominated for election by either (i) one
or more of  stockholders  of such Person who, as of the date of this  Agreement,
owned  more than ten  percent  (10%) of the voting  stock of such  Person (or an
Affiliate  of such  Person) or (ii) the Board of  Directors,  a majority of whom
were  directors as of the date of this Agreement or whose election or nomination
for election was previously approved by one or more of such stockholders or such
directors.

         The term  "Contractual  Obligation"  shall  mean,  with  respect to any
Person, any term, condition,  provision,  representation,  warranty,  agreement,
covenant,  undertaking,  commitment,  indemnity or other obligation set forth in
the  organizational  agreements  and other  documents of such Person or which is
outstanding or existing under any agreement, contract,  arrangement,  instrument
or  understanding  to which such  Person is a party or by which it or any of its
business  is  subject  or  properties  is bound  and  which,  in the case of the
Company, relates to any of the Diablo Assets or the Diablo Business.


                                      -33-

<PAGE>



         The term  "Convertible  Securities"  shall  mean,  with  respect to any
Person,  any  evidences of  indebtedness,  shares of any class of capital  stock
(other than common stock which is not convertible  into or exchangeable  for any
other  shares of any class of capital  stock) or other  securities  directly  or
indirectly  convertible into or exchangeable for shares of common stock, whether
or not the right to convert or exchange thereunder is immediately exercisable or
is conditioned  upon the passage of time, the  occurrence or  non-occurrence  or
existence or non-existence of some other Event, or both.

         The term  "DCI" is defined in the third  whereas  paragraph,  preceding
Section 1.

         The term "DCI Additional  Compensation  Certificates" is defined in the
fourth whereas paragraph, preceding Section 1.

         The term "DCI  Business"  is  defined in the third  whereas  paragraph,
preceding Section 1.

         The term "DCI  Letter  of  Intent"  is  defined  in the  third  whereas
paragraph, preceding Section 1.

         The term "DCI  Notes"  is  defined  in the  fourth  whereas  paragraph,
preceding Section 1.

         The  term  "DCI  Note  Agreement"  is  defined  in the  fourth  whereas
paragraph, preceding Section 1.

         The term "Diablo Assets" is defined in Section 2.4.

         The term "Diablo  Business" is defined in the first whereas  paragraph,
preceding Section 1.

         The term  "Disclosure  Schedule"  shall mean the  Disclosure  Schedule,
dated as of the date  hereof,  heretofore  delivered  by the Company to American
pursuant to the provisions of this Agreement.

         The term "Distribution",  when used in reference to capital stock shall
mean:  (i) the  declaration  or payment  of any  distribution  dividend  (except
distributions payable solely in common stock of the Company) on or in respect of
any class of capital  stock of the Company,  (ii) the  purchase,  redemption  or
other  retirement  of any shares of any class of capital stock of the Company or
any  Subsidiary  owned by a Person other than the Company or a  Subsidiary,  and
(iii) any other  distribution  on or in  respect  of any  shares of any class of
capital stock of the Company or any Subsidiary  owned by a Person other than the
Company or a Subsidiary.

         The term  "Employment  Arrangement"  shall  mean,  with  respect to the
Company, any employment,  consulting,  retainer,  severance or similar contract,
agreement,  plan,  arrangement  or policy  (exclusive of any which is terminable
within ninety (90) days without liability, penalty or payment of any kind of the
Company or any of its  Affiliates),  or  providing  for  severance,  termination
payments, insurance coverage (including any self-insured arrangements), workers

                                      -34-

<PAGE>



compensation,   disability   benefits,   life,   health,   medical,   dental  or
hospitalization benefits,  supplemental unemployment benefits,  vacation or sick
leave  benefits,  pension or retirement  benefits or for deferred  compensation,
profit-sharing, bonuses, stock options, stock appreciation rights or other forms
of  incentive  compensation  or  post-retirement   insurance,   compensation  or
post-retirement   insurance,   compensation  or  benefits,   or  any  collective
bargaining  or other labor  agreement,  whether or not any of the  foregoing  is
subject to the provisions of ERISA, to the extent,  in each case, it relates to,
covers  or is for the  benefit  of any  employee  involved  in the  business  or
operations of any of the Diablo Assets or the Diablo Business.

         The term "ERISA" shall mean the Employee Retirement Income Security Act
of  1974,  as from  time  to time in  effect,  and any  successor  law,  and any
reference to any  statutory  provision  shall be deemed to be a reference to any
successor provision.

         The term  "Event"  shall mean the  occurrence  or existence of any act,
action, activity, circumstance, condition, event, fact, failure to act, incident
or practice, or any set or combination of any of the foregoing.

         The term "Event of Default" is defined in Section 8.1.

         The term "GAAP" shall mean means, except to the extent that a deviation
therefrom is expressly required by this Agreement,  such principles applied on a
consistent  basis,  (i) as set forth in  Opinions of the  Accounting  Principles
Board of the American Institute of Certified Public Accountants ("AICPA") and/or
in statements of the Financial Accounting Standards Board that are applicable in
the  circumstances as of the date in question,  (ii) when not inconsistent  with
such  opinions  and  statements,  as set forth in other AICPA  publications  and
guidelines  and/or  (iii)  that  otherwise  arise by custom  for the  particular
industry, all as the same shall exist on the date of this Agreement.

         The  term  "Governmental  Authorizations"  shall  mean  all  approvals,
concessions,  consents, franchises,  licenses, permits, plans, registrations and
other authorizations of all Authorities relating, in the case of the Company, to
the  ownership or  operation  of the Diablo  Assets or the conduct of the Diablo
Business.

         The  terms  "Guaranty"  or  "Guaranteed"  shall  mean and  include  all
liabilities  and  obligations  under  or by  reason  of any  guarantee  or other
contingent  liability  (other than  endorsements  of negotiable  instruments for
collection or deposit in the ordinary  course of business),  direct or indirect,
with respect to any Indebtedness,  obligation or other liability  (collectively,
an "obligation") of another Person, through an agreement or otherwise.

         The terms "Holder" and "Holders"  shall mean the holders,  from time to
time, of any of the Notes.  The terms "Holder of Record" and "Holders of Record"
shall mean  Holders,  from time to time as shown on the  records of the  Company
maintained for such purpose.


                                      -35-

<PAGE>



         The term  "Indebtedness"  shall mean, with respect,  to any Person, (a)
all items,  except items of capital  stock,  partnership  interests,  surplus or
general  contingency  or deferred tax  reserves or any minority  interest in any
Subsidiary  to  the  extent  such  interest  is  treated  as  a  liability  with
indeterminate  term on the consolidated  balance sheet of such Person,  which in
accordance with GAAP would be included in determining total liabilities as shown
on the  liability  side of a balance sheet of such Person,  (b) all  obligations
secured by any Lien to which any  property or asset owned or held by such Person
is  subject,  whether  or not the  obligation  secured  thereby  shall have been
assumed,  and (c) to the extent not otherwise  included,  all Capitalized  Lease
Obligations  of such Person and all  obligations  of such Person with respect to
leases constituting part of a sale and lease back arrangement.

         The term  "Indebtedness for Money Borrowed" shall mean, with respect to
any Person,  (a) money borrowed,  (b) Indebtedness  represented by notes payable
and drafts accepted representing extensions of credit, all obligations evidenced
by bonds,  debentures,  notes or other similar  instruments,  the maximum amount
currently or at any time thereafter  available to be drawn under all outstanding
letters of credit issued for the account of such Person,  (c) Indebtedness  upon
which interest  charges are customarily  paid by such Person,  (d)  Indebtedness
(including  Capitalized Lease Obligations)  issued or assumed as full or partial
payment  for  property  or  services,  whether  or not any such  notes,  drafts,
obligations or Indebtedness  represent  Indebtedness for money borrowed, and (e)
Guarantees  of any of the  Indebtedness  described in items (a) through (d), but
shall not include (i) trade  payables,  (ii)  expenses  accrued in the  ordinary
course of business or (iii)  customer  advance  payments and  customer  deposits
received in the ordinary course of business.

         The  term  "Law"  shall  mean  any  action,   code,   consent   decree,
constitution, decree, directive, enactment, finding, guideline, law, injunction,
interpretation,  judgment,  order,  ordinance,  policy statement,  proclamation,
promulgation, regulation, requirement, rule, rule of law, rule of public policy,
settlement  agreement,  statute,  or writ, or the common law, or any  particular
section, part or provision thereof, or any interpretation,  directive, guideline
or request (whether or not having the force of law), of any Authority, including
without limitation (a) the judicial systems thereof,  or any particular section,
part or provision thereof, and (b) any of the foregoing relating to antitrust or
prohibiting  other  anticompetitive   business  practices,   those  relating  to
employment  practices  (such as  discrimination,  health and safety),  and those
relating to minority business enterprises.

         The term "Legal  Action"  shall mean,  with respect to any Person,  any
litigation   or   legal   or   other   actions,   arbitrations,   counterclaims,
investigations,  proceedings, requests for material information or suits, at law
or in arbitration,  equity or admiralty  (whether or not purported to be brought
on behalf of such  Person)  affecting  such  Person  or any of its  business  or
property or assets.

         The term "Letter of Intent" is defined in the first whereas  paragraph,
preceding Section 1.

         The term "Lien" shall mean any  mortgage,  lien  (statutory  or other),
preference,  priority or other  security  agreement,  arrangement  or  interest,
hypothecation,  pledge or other deposit arrange ment, assignment,  charge, levy,
executory seizure, attachment, garnishment, encumbrance (including any easement,
exception,   variance,   reservation  or  limitation,   right  of  way,   zoning
restriction,

                                      -36-

<PAGE>



building or use restriction, and the like), conditional sale, title retention or
other  similar  arrangement,  device,  agreement or  restriction,  preemptive or
similar right,  any financing  lease involving  substantially  the same economic
effect as any of the foregoing and the filing of any financing  statement  under
the  Uniform  Commercial  Code or  comparable  law of any  jurisdiction,  or any
option,  equity,  claim or right of or  obligation  to,  any  other  Person,  of
whatever kind and character.

         The  terms  "Material"  or  "Materiality"   for  the  purposes  of  the
Agreement,  shall,  unless  specifically  stated to the contrary,  be determined
without  regard to the fact that various  provisions  of the Agreement set forth
specific dollar amounts.

         The term  "Material  Adverse"  when used alone or in  conjunction  with
other terms (including without limitation "Affect," "Change" and "Effect") shall
mean,  with  respect to the  Company,  any Event or set of Events which could be
expected to (a) have any material  adverse effect upon or result in any material
adverse change in the validity or  enforceability  of the Agreement or any other
agreement,  instrument or other document  executed or required to be executed by
such Person pursuant hereto or thereto,  (b) materially and adversely affect the
business,  operations,  management,  properties or prospects,  or the condition,
financial  or other,  or results of  operation of such Person or such Person and
its Subsidiaries taken as a whole, which, in the case of the Company, shall mean
each of the Diablo Assets or the Diablo  Business,  (c)  materially  impair such
Person's  ability to fulfill its  obligations  under the terms of any agreement,
instrument or other document executed or required to be executed by such Person,
(d)  materially  and adversely  affect the aggregate  rights and remedies of any
party (other than such Person) under the Agreement or any agreement,  instrument
or other  document  executed  or  required  to be  executed  pursuant  hereto or
thereto, or (e) or, in the case of the Company, adversely affects its ability to
perform this Agreement,  the Notes or any of the other Related  Agreements or to
pay when due, in accordance with the terms of this Agreement and the Notes,  the
principal of and interest and premium, if any, on the Notes.

         The term "Material  Agreement" shall mean, with respect to the Company,
any  agreement,  contract,  arrangement,  undertaking,  commitment,  license  or
obligation  relating to the  ownership or operation of the Diablo  Assets or the
conduct of the Diablo  Business  which (a) was not entered  into in the ordinary
course of  business,  (b) was entered  into in the  ordinary  course of business
which  (i)  involves  the  purchase,  sale or lease of  goods  or  materials  or
performance of services  aggregating more than Fifty Thousand Dollars ($50,000),
(ii) extends for more than twelve (12)  months,  or (iii) is not  terminable  on
thirty (30) days' or less notice without penalty or other payment,  (c) involves
Indebtedness for Money Borrowed in excess of Fifty Thousand  Dollars  ($50,000),
or (d) would  account for more than one percent  (1%) of revenues or expenses of
the Diablo  Business  projected to be received or incurred by the Company during
the current fiscal year.  Without limiting the generality of the foregoing,  the
term "Material Agreement" shall include the Acquisition Agreement.

         The term "Most Recent Balance Sheet" is defined in Section 2.3.

         The  term  "NSR  Rate"  is  defined  in  the  Additional   Compensation
Certificates.

         The term "Net Site Revenue" is defined in the  Additional  Compensation
Certificates.

                                      -37-

<PAGE>



         The term "Notes" is defined in Section 1.1.

         The term "Operating Cash Flow" shall mean, with respect to the Company,
for any period: (a) net revenues of the Company and its Subsidiaries, determined
in accordance with CAAP, for such period, less (b) operating expenses (inclusive
of taxes and corporate overhead, selling and administrative expenses). Cash Flow
shall be  adjusted  on a  consistent  basis to reflect  the  acquisition,  sale,
exchange and  disposition  of property  (other than tangible  personal  property
disposed of in the ordinary  course of  business).  Cash Flow shall  exclude all
extraordinary  gains and  losses  and all gains and  losses  from  acquisitions,
sales,  exchanges  and  dispositions  of assets  (other than  tangible  personal
property disposed of in the ordinary course of business).

         The term  "Option  Securities"  shall  mean  all  rights,  options  and
warrants,  and calls or  commitments  evidencing  the right,  to subscribe  for,
purchase  or  otherwise  acquire  shares of any class of capital  stock or other
securities or Convertible Securities, whether or not the right to subscribe for,
purchase or otherwise acquire is immediately  exercisable or is conditioned upon
the passage of time,  the  occurrence  or  non-occurrence  or the  existence  or
non-existence of some other Event.

         The term "PBGC" shall mean the Pension Benefit Guaranty Corporation and
any Person succeeding to any or all of its functions under ERISA.

         The term "Permitted Liens" shall mean:

                  (e) the security interest created under the Security Agreement
         in favor of the holders of the Notes;

                  (f)  Liens  for  taxes  if  payment  shall  not at the time be
         required to be made in accordance with the provisions of Section 7.2;

                  (g)  Liens of  carriers,  warehousemen,  mechanics,  laborers,
         materialmen  and landlords  incurred in the ordinary course of business
         for sums not yet due or being contested in good faith, if payment shall
         not be required to be made in accordance with the provisions of Section
         7.2;

                  (h) Liens  arising out of judgments or awards,  and appeal and
         similar bonds  incident to the conduct of legal  actions,  against such
         Person  with  respect to which such  Person  shall then be  prosecuting
         appeal or other proceedings for review (and as to which any foreclosure
         or other  enforcement  proceedings  shall not have  begun or shall have
         been fully bonded or otherwise effectively stayed);

                  (i) Liens  incurred  in the  ordinary  course of  business  in
         connection with worker's compensation and unemployment  insurance Laws,
         but  only  so  long  as no  foreclosure,  distraint,  sale  or  similar
         proceedings have been commenced with respect thereto; and


                                      -38-

<PAGE>



                  (j)  Liens set forth in the Disclosure Schedule.

         The term "Person" shall mean any natural individual, corporation, firm,
unincorporated  organization,   association,   partnership,   limited  liability
company,  business  trust,  joint stock company,  joint venture,  trust or other
organization,  entity or business, or any governmental authority, whether acting
in an individual, fiduciary or other capacity.

         The term  "Plan"  shall  mean,  with  respect  to any  Person  and at a
particular  time,  any  employee  benefit  plan which is covered by ERISA and in
respect of which such Person or an ERISA Affiliate (as defined in ERISA) is (or,
if such plan were terminated at such time, would under Sec tion 4069 of ERISA be
deemed to be) an "employer" as defined in Section 3(5) of ERISA.

         The term "Potential Default" shall mean any event or circumstance which
after notice, passage of time, or both, would become an Event of Default.

         the term "Prepayment Penalty" is defined in the Additional Compensation
Certificates.

         The term "Prime Rate" is defined in Section 1.1.

         The  term   "Private   Authorizations"   shall   mean  all   approvals,
concessions,  consents, franchises,  licenses, permits, and other authorizations
of all Persons (other than  Authorities)  other than those of a nature  included
within  the  definition  of  Intellectual  Property  which,  in the  case of the
Company,  relates to the  ownership  or  operation  of the Diablo  Assets or the
conduct of the Diablo Business.

         The term "Purchase Price" is defined in Section 1.2.

         The term  "Related  Agreement"  shall mean this  Agreement,  the Notes,
Acquisition  Agreement (if executed and  delivered),  and each other  agreement,
instrument and other document executed or required to be executed by the Company
on  the  Closing  Date  or at  any  time  thereafter,  in  connection  with  the
transactions  contemplated  by  this  Agreement  or  any of  the  other  Related
Agreements,  in each case,  as amended,  modified or  supplemented  from time to
time.

         The term  "Rental  Obligations,"  with  respect  to any  lease  for any
period,  shall mean the minimum amount of rental payments required to be made in
such period by the lessee under such Lease,  including  without  limitation  any
amounts required to be paid by such lessee,  whether or not designated as rental
or additional  rental:  (a) on account of  maintenance  and repairs,  insurance,
taxes, assessments, water and sewer rates and similar charges, and (b) which are
payable on the basis of profits, revenues or sales to be derived from the leased
property or any other index of performance.

         The term "Sanwa  Loan  Agreement"  shall mean the Term Loan  Agreement,
dated as of January 31, 1996,  by and between Sanwa Bank  California  and Diablo
Communications,  Inc. and Richard D. Spight,  Trustee of the Mary Colores Spight
Family Trust U/A/D June 16, 1983, as amended as of the date hereof.

                                      -39-

<PAGE>



         The term  "Securities  Act" shall mean the  Securities Act of 1933, and
the rules and regulations  promulgated  thereunder,  all as from time to time in
effect,  or any successor  law, rules or  regulations,  and any reference to any
statutory  or  regulatory  provision  shall be deemed to be a  reference  to any
successor statutory or regulatory provision.

         The term "Securities  Exchange Act" shall mean the Securities  Exchange
Act of 1934, and the rules and regulations promulgated  thereunder,  all as from
time to time in effect,  or any successor  law,  rules or  regulations,  and any
reference  to any  statutory  or  regulatory  provision  shall be deemed to be a
reference to any successor statutory or regulatory provision.

         The  term  "Solvent"  shall  mean,  with  respect  to any  Person  on a
particular  date,  that on such  date (i) the fair  value of the  assets of such
Person (both at fair  valuation and at present fair  saleable  value) is, on the
date of determination,  greater than the total amount of liabilities, including,
without  limitation,  contingent and unliquidated  liabilities,  of such Person,
(ii) such Person is able to pay all  liabilities  of such Person as they mature,
and (iii) such Person does not have  unreasonably  small  capital  with which to
carry on its business.  In computing  the amount of  contingent or  unliquidated
liabilities at any time, such  liabilities will be computed at the amount which,
in light of all the facts and  circumstances  existing at such time,  represents
the  amount  that can  reasonably  be  expected  to become an actual or  matured
liability.  For  purposes  of this  definition,  "indebtedness"  shall  mean any
liability on a claim,  and "claim"  shall mean (a) right to payment,  whether or
not  such  right  is  reduced  to  judgment,  liquidated,  unliquidated,  fixed,
contingent,  matured, unmatured,  disputed, undisputed, legal equitable, secured
or unsecured,  or (b) right to an equitable  remedy for breach of performance if
such breach  gives rise to a payment,  whether or not such right to an equitable
remedy is reduced to judgment, fixed, contingent,  matured, unmatured, disputed,
undisputed, secured or unsecured.

         The term "Subject Sites" is defined in Section 1.1.

         The term  "Subsidiary"  with respect to any corporation  (the "parent")
shall mean any Person of which such parent, at the time in respect of which such
term is used,  (a) owns directly or indirectly  more than fifty percent (50%) of
the  equity  or  beneficial  interest,  on a  consolidated  basis,  and (b) owns
directly  or  controls  with  power  to  vote,  indirectly  through  one or more
Subsidiaries, shares of capital stock or beneficial interest having the power to
cast at least a majority of the votes  entitled  to be cast for the  election of
the directors,  trustees, managers or other officials having powers analogous to
those of directors of a corporation.  Unless otherwise  specifically  indicated,
when  used  herein  the term  Subsidiary  shall  refer to a direct  or  indirect
Subsidiary of the Company.

         The term "Tax" (and with correlative meanings,  "Taxes" and "Taxable"),
shall mean,  with  respect to any Person,  (a) any net  income,  alternative  or
add-on minimum tax, gross income, gross receipts, gains, sales, use, ad valorem,
transfer, franchise, profits, license, withholding on amounts paid to or by such
Person  or any of its  Subsidiaries,  payroll,  employment,  excise,  severance,
stamp,  occupation,  premium,  property,  environmental  or windfall profit tax,
custom,  duty or other tax,  governmental fee or other like assessment or charge
of any kind whatsoever,  together with any interest or any penalty,  addition to
tax or additional amount imposed by any Authority (a "Taxing

                                      -40-

<PAGE>



Authority")  responsible  for  the  imposition  of any  such  tax  (domestic  or
foreign),  (b)  joint  or  several  liability  of  such  Person  or  any  of its
Subsidiaries  with any other  Person for the  payment of any amounts of the type
described in (a) and (c) liability of such Person or any of its Subsidiaries for
the  payment  of any  amounts  of the type  described  in (a) as a result of any
express or implied obligation to indemnify any other Person.

         The  term  "Tax  Returns"  shall  mean  all  returns,  consolidated  or
otherwise  (including without limitation  information  returns),  required to be
filed in any jurisdiction with respect to Taxes.

         The term  "Transfer"  shall  mean  any  sale,  assignment,  conveyance,
transfer or other disposition,  mortgage, pledge or other Lien, lease, exchange,
abandonment,  parting with  control of, gift,  granting of an option or proxy or
other act of alienation.

         The term "Third Party Transfer" shall mean, with respect to any Person,
the Transfer of all or any substantial  portion of business,  property or assets
of such Person,  including in the case of the Company of all or any  substantial
portion of the Diablo  Assets or the Diablo  Business to any other  Person other
than (a) any Transfer to American or one of its  Affiliates or (b) any bona fide
mortgage,  pledge or other Lien  thereon  granted to a bank or other  recognized
financial  institution  pursuant to the incurrence of Indebtedness  and not with
the intent of avoiding Section 6.1 of this Agreement.

         The term  "Wholly-Owned  Subsidiary"  shall  mean a  Subsidiary  of the
Company,  all of the  outstanding  shares of every  class of stock  (other  than
directors'  qualifying  shares,  if required by statute,  the  certificates  for
which,  duly endorsed in blank or  accompanied by a stock power duly endorsed in
blank,  shall be held by such  Subsidiary) and all other securities of which are
at  the  time  owned,  directly  or  indirectly,   by  the  Company  or  another
Wholly-Owned Subsidiary.

         10.  Miscellaneous Provisions.

         10.1 Stamp and Other Taxes.  The Company  covenants  and agrees that it
will pay all United States and state  documentary stamp or similar excise taxes,
including  any interest or penalties  thereon,  which may be legally  payable in
connection  with or  arising  out of the  issue  of any of the  Notes  and  will
indemnify  each holder of any thereof  against,  and save it harmless  from, any
liability, cost or expense in respect of any such stamp taxes or other taxes and
any interest or penalties  thereon.  The Company's  agreement in this connection
shall survive termination of this Agreement and the payment of the Notes.

         10.2  Expenses.  Whether or not the  transactions  contemplated  hereby
shall be  consummated,  the Company  will pay all of the  following  expenses in
connection  with such  transactions  and in con nection with any  amendments  or
waivers  (whether or not the same become  effective) under or in respect of this
Agreement,  the Notes and the other  Related  Agreements to which it is a party:
(a) the cost and  expenses  of its  counsel,  including  the  furnishing  of all
opinions by such counsel and all  certificates on behalf of the Company,  and of
the Company's  performance of and compliance  with all agreements and conditions
contained  herein on its part to be  performed or complied  with;  (b) the taxes
specified in Section 10.1; (c) the costs and expenses  specified in Sections 8.6
and 10.9; and

                                      -41-

<PAGE>



(d)  the  out-of-pocket  expenses  incurred  by  each  holder  of any  Notes  in
connection  with any amendments or waivers or in connection  with or arising out
of any litigation,  investigation  or proceeding  instituted by any Authority or
any other Person with respect to this Agreement,  the Notes or the other Related
Agreements to which it is a party or the  transactions  contemplated  hereby and
requiring  such  holder's  participation  or  involvement,  except as  otherwise
provided in the Acquisition Agreement.

         Anything in this Section or elsewhere in this Agreement to the contrary
notwithstanding,  in the event of any Legal  Action  between the Company and the
holders from time to time of the Notes,  the prevailing  party shall be entitled
to be  reimbursed  for the  reasonable  legal fees and  expenses and other court
costs of such Legal Action.

         10.3  Survival of Covenants;  Successors  and Assigns.  All  covenants,
agreements  and  representations  made herein and in  certificates  delivered in
connection  herewith  shall  be  deemed  material  and  relied  on  by  American
notwithstanding any investigation made by it or in its behalf, and shall survive
the execution  and delivery of the Notes,  to it and its payment  therefor,  and
shall bind and,  subject to compliance  with the  provisions  of this  Agreement
including without limitation Section 7.12, inure to the benefit of the Company's
successors  and assigns,  whether so  expressed or not, and all such  covenants,
agreements and representations  shall inure to the benefit of the successors and
assigns of American, whether so expressed or not.

         10.4 Notices and Communications.  All notices and other  communications
which by any  provision of this  Agreement are required or permitted to be given
shall be given in writing and shall be (i) mailed by  first-class,  express mail
or other overnight mail service,  postage  prepaid,  or Federal Express or other
overnight mail courier service, (ii) sent by telex, telegram,  telecopy or other
similar  form of rapid  transmission,  confirmed  by mailing  (by first class or
express  mail,  postage  prepaid,  or Federal  Express or other  overnight  mail
courier  service) written  confirmation at  substantially  the same time as such
rapid transmission, or (iii) personally delivered to an officer of the receiving
party. All such communications shall be mailed, set or delivered:

                  (a) if to the Company, at 1220 Brickyard Cove Road, Suite 200,
         Point  Richmond,  CA  94801,  (facsimile  [510]  236-3799),  attention:
         Richard Spight,  Chairman (with a copy to Cooper,  White & Cooper, 1333
         North  California  Boulevard,   Suite  450,  Walnut  Creek,  CA  94596,
         (facsimile [510] 256-9428), attention: Keith Howard, Esq.);

                  (b) if to American, at 6400 North Congress Avenue, Suite 1750,
         Boca Raton, FL 33487, (facsimile: [407] 998-2278),  attention: James S.
         Eisenstein,  Chief  Operating  Officer  (with copies to American  Radio
         Systems   Corporation,   116  Huntington  Avenue,   Boston,  MA  02116,
         (facsimile [617] 375-7575),  attention: Joseph L. Winn, Chief Financial
         Officer, and Sullivan & Worcester LLP, One Post Office Square,  Boston,
         Massachusetts 02109, (facsimile [617] 338-2880),  attention:  Norman A.
         Bikales, Esq.); and

                  (c) if to any other  Holders of Notes to the address set forth
         in the Company's records;


                                      -42-

<PAGE>



or at such other  addresses  (including  copies) as any party may  designate  in
writing to the other parties to this Agreement.

         A notice  delivered in person shall be effective  when received or upon
refusal to accept  receipt;  a notice  sent by mail  shall not become  effective
until  received  by the  Person  to whom it is  given,  unless  it is  mailed by
registered or certified mail, in which case it shall be deemed  effective on the
date of receipt or refusal to accept receipt as indicated by postal  records;  a
notice sent by rapid  transmission  shall be deemed to be given when  receipt of
such transmission is acknowledged.

         10.5  Amendments  and Waivers.  Any provision of this  Agreement to the
contrary  notwithstanding,  changes in or  additions to this  Agreement  and the
Notes may be made, or compli ance with any term, covenant, agreement,  condition
or provision  set forth  herein,  in the Notes may be omitted or waived  (either
generally or in a particular instance and either retroactively or prospectively)
with,  but only with,  the  consent in writing of the  holders of a majority  in
principal  amount of the Notes at the time  outstanding and the Company,  except
that no such  change,  addition,  omission,  waiver or consent  may be made with
respect to the Notes,  without  the  consent of all of the holders of the Notes,
except as  otherwise  provided  in  Section  8.3,  if it  involves  any  change,
addition,  omission,  waiver or consent with respect to the provisions regarding
the  amount,  timing or form of payment of  premium,  if any,  or interest on or
principal of the Notes, the maturity date thereof or which changes or amends the
provisions of this Section with respect to the requirement of unanimous  consent
of the  Noteholders;  and each such change,  addition or waiver shall be binding
upon each  future  holder  of the Notes  and,  in the case of the  Company,  its
successors  and  permitted  assigns.   Any  consent  may  be  given  subject  to
satisfaction of conditions stated therein. The failure to insist upon the strict
provisions of any covenant, term, condition or other provision of this Agreement
or the Notes or to exercise any right or remedy  hereunder or  thereunder  shall
not constitute a waiver of any such covenant, term, condition or other provision
thereof or Potential  Default or Event of Default in connection  therewith.  The
waiver of any covenant,  term, condition or other provision hereof or thereof or
Potential  Default or Event of Default  hereunder shall not affect or alter this
Agreement or the Notes in any other respect, and each and every covenant,  term,
condition or other  provision  of this  Agreement  and the Notes shall,  in such
event,  continue  in full force and  effect,  except as so waived,  and shall be
operative  with  respect  to any other then  existing  or  subsequent  Potential
Default or Event of Default in connection therewith.

         10.6 Governing Law; Venue.  This Agreement is and shall be deemed to be
a contract  made  under,  and the  validity,  interpretation,  construction  and
performance of this Agreement  shall be governed by, the applicable  laws of the
United States of America and the domestic  substantive  laws of the State of New
York without  giving effect to any choice or conflict of laws  provision or rule
that would  cause the  application  of  domestic  substantive  laws of any other
jurisdiction.  In the event of any Legal Action between the parties  arising out
of this  Agreement,  the parties  agree to submit the matter to the  appropriate
municipal, state or federal court sitting in San Francisco,  California, and the
parties agree to submit to the jurisdiction of such courts.

         10.7 Entire  Agreement.  This Agreement (which term, unless the context
otherwise  specifically  requires,  includes all Exhibits and Schedules  hereto)
constitutes the entire agreement

                                      -43-

<PAGE>



between  American and the Company with respect to the subject  matter hereof and
supersedes all prior agreements, arrangements,  covenants, promises, conditions,
understandings,  inducements,  representations  and  negotiations,  expressed or
implied, oral or written, between them as to such subject matter.

         10.8 Saturdays,  Sundays,  Holidays,  etc. If the last or appointed day
for taking of any action  required or  permitted  hereby or by the Notes  (other
than the payment of principal  of or interest or premium,  if any, on the Notes)
shall be a  Saturday,  Sunday or legal  holiday  in Boca  Raton,  Florida or San
Francisco,  California,  or a day on which banking  institutions  in Boca Raton,
Florida or San Francisco,  California,  are authorized by law or executive order
to close, then such action may be taken on the next succeeding  business day for
banking institutions in such cities.

         10.9  Brokers,  etc. No broker,  finder or other  person  performing  a
similar  function has been retained by the Company in connection  with the issue
and  sale of the  Notes or the  Acquisition.  The  Company  will  pay,  and will
indemnify and hold harmless American and its officers, directors,  stockholders,
employees,  trustees and agents from, the fees,  commissions and expenses of any
Person purporting to have acted on the Company's behalf in such connection or in
connection  with the issue and sale of the Notes and the  Acquisition.  American
will pay, and will  indemnify  and hold  harmless the Company and its  officers,
directors,  employees,  trustees  and agents  from,  the fees,  commissions  and
expenses of any Person  purporting  to have acted on  American's  behalf in such
connection  or in  connection  with  the  issue  and sale of the  Notes  and the
Acquisition.

         10.10 Headings;  Counterparts. The headings contained in this Agreement
are for  reference  purposes  only and shall not limit or  otherwise  affect the
meaning of any provision of this  Agreement.  This  Agreement may be executed in
any number of counterparts, each of which shall be an original, but all of which
together  shall  constitute  one  instrument,  binding  upon all of the  parties
hereto. In pleading or proving any provision of this Agreement,  it shall not be
necessary to produce more than one of such counterparts.

         10.11 Severability. If any provision of this Agreement shall be held or
deemed  to  be,  or  shall  in  fact  be,  invalid,   inoperative,   illegal  or
unenforceable  as  applied  to  any  particular  case  in  any  jurisdiction  or
jurisdictions,  or in all jurisdictions or in all cases, because of the conflict
of any provision  with any  constitution  or statute or rule of public policy or
for any other reason,  such circumstance  shall not have the effect of rendering
the  provision  or  provisions  in  question  invalid,  inoperative,  illegal or
unenforceable in any other  jurisdiction or in any other case or circumstance or
of  rendering  any other  provision  or  provisions  herein  contained  invalid,
inoperative,  illegal or  unenforceable to the extent that such other provisions
are not themselves actually in conflict with such constitution,  statute or rule
of public policy, but this Agreement shall be reformed and construed in any such
jurisdiction or case as if such invalid,  inoperative,  illegal or unenforceable
provision had never been contained herein and such provision reformed so that it
would be valid,  operative and  enforceable to the maximum  extent  permitted in
such jurisdiction or in such case.

         10.12 Further  Assurances  Each of the parties hereto agrees to execute
and deliver those writings and documents reasonably required to more fully carry
out the acts contemplated hereby,

                                      -44-

<PAGE>


and each party hereby  agrees,  at the written  request of any other  party,  to
advise any Person of the status of this Agreement, the Notes or any of the other
Related  Agreements  and to the  effect  that  any of the  same  is or is not in
default.

         10.13 Specific  Performance;  Other Rights.  The parties recognize that
various  of the  rights of the  parties  under this  Agreement  are unique  and,
accordingly,  the parties  shall,  in addition to such other  remedies as may be
available  to it at law or in  equity,  have the  right to  enforce  its  rights
hereunder  by actions for  injunctive  relief and  specific  performance  to the
extent  permitted  by Law.  Nothing  herein  contained  shall  be  construed  as
prohibiting  either party from pursuing any other  remedies  available to it for
such breach or threatened  breach,  including without limitation the recovery of
damages.

         10.14   Non-Recourse   Obligation.   The  obligations  of  the  Company
represented  by the Notes are  nonrecourse to the  stockholders  of the Company,
and,  notwithstanding any provision to the contrary in this Agreement,  the Note
or any of the other  Related  Agreements,  American  agrees for itself,  and its
successors  and assigns that (a) neither any  stockholder of the Company nor his
successors and assigns shall be personally  liable on the Notes,  and (b) in the
event that one or more Events of  Defaults  has  occurred  or any other  default
whatsoever has occurred under this Agreement or the Notes,  American,  or any of
its  successors  and assigns,  shall look solely to the Company and its property
and  assets,  including  without  limitation  the  Diablo  Assets and the Diablo
Business,  of the  Company for payment of the  indebtedness  represented  by the
Notes and will not make any claim or institute any action or proceeding  against
any  stockholder  of the Company,  or any of his  successors  and  assigns,  for
payment of such indebtedness (or for any deficiency).

         IN WITNESS WHEREOF the parties hereto have executed this Agreement, all
pursuant to authority  heretofore  granted,  to the extent applicable,  by their
respective Boards of Directors, as of the date and year first above written.

                              Diablo Communications of Southern California, Inc.

                              By:________________________________
                                    Name:
                                    Title:

                              American Tower Systems Corporation

                              By:________________________________
                                    Name:
                                    Title:




                                      -45-



                                                                   EXHIBIT 10.4e


                   Amendment to Securities Purchase Agreement


         This  Amendment  is made as of August 7,  1997,  by and among  American
Tower Systems, Inc, a Delaware corporation ("ATS"), Diablo Communications, Inc.,
a  California  corporation  ("Diablo"),  and Diablo  Communications  of Southern
California, Inc., a California corporation ("DCSC").

                               W I T N E S E T H:


         WHEREAS,  ATS and Diablo,  and ATS and DCSC have,  heretofore,  entered
into separate  Securities  Purchase  Agreements  dated as of March 20, 1997 (the
"Securities Purchase  Agreements") and separate Assets Purchase Agreements dated
as of July 8, 1997 ("Purchase Agreements"); and

         WHEREAS,  ATS,  Diablo and DCSC are  desirous of amending the terms and
conditions of the Securities Purchase Agreements;

         NOW, THEREFORE,  in consideration of the sum of One Dollar ($1.00), and
other good and valuable consideration,  the receipt, adequacy and sufficiency of
which are hereby acknowledge, the parties hereto, intending to be legally bound,
do covenant and agree as follows:

1.       Definitions.  Terms not  otherwise  defined  shall have the  respective
         meaning prescribed  therefor in the Securities  Purchase Agreements and
         Purchase Agreements.

2.       Referenced  Documents.  The Securities Purchase Agreements and Purchase
         Agreements are incorporated herein by reference.

3.       Advances  to  Date.  Pursuant  to the term of the  Securities  Purchase
         Agreement  between  ATS and  DCSC,  the  sum of  $248,751.00  has  been
         advanced to DCSC by ATS as of the date of this amendment.  No sums have
         been advanced to date under the Securities  Purchase  Agreement between
         ATS and Diablo.

4.       Amendment of Securities Purchase Agreements.  Notwithstanding  anything
         to the  contrary  in the  Securities  Purchase  Agreements  and/or  the
         Purchase  Agreements,  any and all advances made by ATS to Diablo or by
         ATS to DCSC pursuant to the Securities  Purchase  Agreements,  from and
         after  the date of this  Amendment,  shall be  deemed  advances  of the
         purchase price under the respective  Purchase  Agreement and shall be a
         credit against the purchase  price at close of the Purchase  Agreement.
         Any  and all  such  advances  made  from  and  after  the  date of this
         Amendment shall not be subject to additional compensation  certificates
         nor shall they  accrue any  interest,  except as  provided  below.  All
         advances  made  from  and  after  the date of this  Amendment  shall be
         utilized by Diablo and/or DCSC for completion of construction  projects
         and site development  projects and such expenditures  shall be included
         in the Interim  Adjustment  referred to in Section 2.3 of the  Purchase
         Agreements.  The  maximum  amounts to be  advanced by ATS to Diablo and
         DCSC in the  aggregate  pursuant to this  Amendment is the sum of three
         hundred thousand dollars ($300,000).

                                                        
<PAGE>


5.       Conversion  to Loan.  In the event that the Purchase  Agreements do not
         close,  any and all  advances  made  pursuant to this  Amendment  shall
         automatically  become loans made by ATS to Diablo  and/or DCSC,  as the
         case  may be.  Such  loans  shall  be in the  principal  amount  of all
         advances made under this Amendment to Diablo and or DCSC, respectively,
         shall  bear  interest  and  be  due  and  payable  as  provided  in the
         applicable Securities Purchase Agreement,  but ATS shall not, except as
         provided in the next sentence,  be entitled to Additional  Compensation
         Certificates  with respect  thereto.  Upon  termination of the Purchase
         Agreement or Agreements,  Diablo and/or DCSC, as applicable, will issue
         a note  evidencing the loan or loans in a form,  which,  except for any
         provisions in this Amendment to the contrary,  will be the form of note
         attached as Exhibit A to the  Securities  Purchase  Agreements,  except
         that, if the reason for such  termination  was the default or breach of
         Diablo  and/or  DCSC,  such notes  shall be dated as of the date of the
         respective   advances  pursuant  hereto  and  the  provisions  of  this
         Amendment shall not apply.

6.       Prior  Agreements.  Except  as  specifically  provided  herein  to  the
         contrary,   the  terms  and  conditions  of  the  Securities   Purchase
         Agreements and the Purchase  Agreements  shall remain in full force and
         effect.

         IN WITNESS WHEREOF,  ATS, Diablo and DCSC have caused this Amendment to
be  executed as of the date first  written  above by their  respective  officers
thereunto duly authorized.

                          American Tower Systems, Inc.

                          By:______________________
                          Name: Justin D. Benincasa
                          Title: Vice President


                          Diablo Communications, Inc.

                          By:________________________
                          Name:_____________________
                          Title:______________________


                          Diablo Communications of Southern California, Inc.

                          By:_________________________
                          Name:_______________________
                          Title:________________________



                                        2




                                                                    Exhibit 10.5


                            ASSET PURCHASE AGREEMENT

         AGREEMENT (this "Agreement") dated as of May 27, 1997, between American
Radio Systems  Corporation,  a Delaware  corporation (the "Buyer") and Precision
Media Corporation, a Delaware corporation (the "Seller").

         WHEREAS,  the Seller is (i) the owner,  licensee  and  operator of four
radio stations, WMYF-AM, broadcasting at a frequency of 1540 khz in and licensed
to Exeter, New Hampshire,  WERZ-FM,  broadcasting at a frequency of 107.1 mhz in
and licensed to Exeter, New Hampshire,  WZNN-AM,  broadcasting at a frequency of
930 khz in and licensed to Rochester, New Hampshire and WSRI-FM, broadcasting at
a  frequency  of  96.7  mhz  in  and  licensed  to   Rochester,   New  Hampshire
(collectively,  the  "Stations")  and  (ii)  the  owner  of  certain  land  (the
"Premises") and the buildings,  structures and  improvements  (the  "Buildings")
thereon located in Exeter, New Hampshire and described in more detail on Exhibit
A attached hereto; and

         WHEREAS, the Seller wishes to sell and the Buyer wishes to purchase the
Premises,  the Buildings and certain other assets of the Seller  relating to the
Seller's operation of the Stations; and

         WHEREAS,  the purchase  and sale of such assets may not be  consummated
unless and until the Federal Communications  Commission (the "FCC") approves the
transfer to the Buyer of the Seller's FCC licenses to operate the Stations.

         NOW, THEREFORE, the parties hereto agree as follows:

         SECTION 1.  DEFINITIONS.  The  following  terms shall have the meanings
respectively assigned to them below in this Section 1 or in the other provisions
of this Agreement referred to below:

         Acquired Assets.  As defined in Section 2.

         Appurtenant  Rights.  Shall  mean  the  rights,   easements  and  other
interests appurtenant to the Premises which are described on Exhibit A.

         Assumption Agreement. An Assumption Agreement, to be executed and dated
as of the Closing Date, substantially in the form of Exhibit B.

         Buildings.  See preamble hereto.




<PAGE>
                                      -2-


         Closing.  As defined in Section 5.1.

         Closing Date. The date to be designated by notice from the Buyer to the
Seller,  or such other date as the parties may mutually agree for the closing of
this  transaction;  provided,  however,  that the Closing Date shall not be more
than  fifteen  (15)  days  after  the date on which  there is an  effective  FCC
Consent; provided,  further, in no event shall the Closing Date occur later than
seven (7) months following the date of this Agreement.

         Contracts.  As defined in Section 2.3.

         Deed. A good and sufficient special warranty deed transferring good and
clear  record  and  marketable  title to the  Premises,  the  Buildings  and the
Appurtenant Rights, subject only to Permitted Encumbrances.

         Encumbrances.  As defined in Section 7.4.

         Escrow Agent.  Citizens Bank of Rhode  Island,  a Rhode Island  banking
corporation.

         Escrow  Deposit.  The sum of $600,000 held by the Escrow Agent pursuant
to the Escrow Agreement.

         Escrow  Agreement.  The  Escrow  Agreement  of even  date by and  among
Seller,  Buyer and Escrow Agent,  in  substantially  the form attached hereto as
Exhibit C.

         Excluded Assets.  As defined in Section 2.4.

         Farmington Lease. The Ground Lease dated November 10, 1991 between Lois
Glidden and the Seller (as  successor-in-interest  to Bear Broadcasting Company)
regarding the Farmington Property, in the form attached hereto as Exhibit E-1.

         Farmington Property.  The land located on Elm Street,  Farmington,  New
Hampshire and described in more detail in the Farmington Lease.

         FCC.  As defined in the preamble.

duly granted by the FCC  approving the transfer of the Licenses to the Buyer and
approving  thereby the control and operation of the Stations by the Buyer on and
after the Closing Date under conditions that are not less favorable final,  that
is, one with respect to which no appeal or petition or motion for  rehearing and
no reconsideration or review is pending,  and as to which the time for filing or
initiating such an appeal or petition or motion or reconsideration or review has
expired, or, if filed or initiated,  has been denied, 




<PAGE>
                                      -3-


dismissed  or  withdrawn  and the time for any further  administrative  or legal
proceedings has expired.

         FTC.  Federal Trade Commission.

         HSR Act. The Hart-Scott-Rodino  Antitrust  Improvements Act of 1976, as
amended.

         Leases.  Collectively,  the Farmington  Leases, the Rochester Lease and
the Stratham Lease.

         Licenses.  As defined in Section 7.5.

         Materially Adverse Effect. Any materially adverse effect on the ability
of the Seller to operate the Stations in accordance  with  applicable  law or to
pay its debts as they become due and payable.

         Non-Competition  Agreement.  The Non-Competition  Agreement between the
Buyer and the Seller,  to be dated as of the Closing Date,  substantially in the
form of Exhibit D.

         Occupancy  Permit.  The certificate of use and occupancy  issued by the
Town of Exeter, New Hampshire.

         Permitted Encumbrances.  As defined in Section 5.2.

         Purchase Price.  As defined in Section 3.1.

         Premises.  See preamble hereto.

         Rochester  Lease.  The Lease and Option Agreement dated October 9, 1987
between  Marcia L.  Nescot  and the  Seller  (as  successor-in-interest  to Bear
Broadcasting Company,  successor-in-interest to Salmanson Communications,  Inc.)
regarding the Rochester Property, in the form attached hereto as Exhibit E-2.

         Rochester Property.  The land, buildings and transmitting tower thereon
located at Rochester Hill Road,  Rochester,  New Hampshire and described in more
detail in the Rochester Lease.

         Real Estate. Collectively, the Premises, the Buildings, the Appurtenant
Rights,  the  Farmington  Property,  the  Rochester  Property  and the  Stratham
Property.

         Service Agreements.  All service agreements with third parties, whether
written or oral, relating to the operation,  maintenance,  security,  finance or




<PAGE>
                                      -4-


insurance  of the Premises and Building  Service  Equipment,  including  but not
limited to those described on Exhibit F.

         Stations.  As defined in the preamble.

         Station Records.  As defined in Section 11.3.

         Stratham  Lease.  The  Lease  dated  July 9,  1982  between  Long  Hill
Associates Partnership (as  successor-in-interest  to Gowen Farms, Inc.) and the
Seller (as  successor-in-interest to Porter Communications,  Inc.) regarding the
Stratham Property, in the form attached hereto as Exhibit E-3.

         Stratham  Property.  The land and transmitting tower thereon located on
Long Hill Road,  Stratham,  New  Hampshire  and  described in more detail in the
Stratham Lease.

         Time Brokerage  Agreement.  The Time  Brokerage  Agreement of even date
herewith, in substantially the form of Exhibit G hereof.

         Title Policy.  An ATLA standard form title  insurance  policy issued by
the Title  Insurance  Company in an amount equal to the Purchase  Price insuring
that Buyer or its nominee holds good,  record and marketable fee simple title to
the  Premises,  the  Buildings  and  the  Appurtenant  Rights,  subject  only to
Permitted  Encumbrances,  which policy shall not include any  exceptions for (i)
mechanics liens or (ii) persons in possession or occupancy.


         SECTION 2. PURCHASE AND SALE; NON-COMPETITION AGREEMENT. Subject to the
terms and  conditions  set forth in this  Agreement,  at the  Closing the Seller
shall sell and transfer to the Buyer,  and the Buyer shall  purchase and acquire
from the Seller,  all of the assets described in Sections 2.1, 2.2 and 2.3 below
(collectively,  the "Acquired  Assets") and all of the Seller's interests in and
rights under the  contracts and  agreements  described in Section 2.4 below (the
"Contracts"):


         2.1.  Tangible Assets. The transmission tower housings on certain of
the Real Estate, the guy wires relating thereto and stanchions or other supports
for the guy wires, and all transmission,  studio and other equipment, furniture,
fixtures,  motor  vehicles,  promotional  blimps and balloons and other tangible
personal properties located in Farmington,  Stratham,  Rochester and Exeter, New
Hampshire and environs that are used, necessary or useful in connection with the
operation of the  Stations  and that the Seller  either owns or has the power to
transfer  including,  without  limitation,  those  listed on Schedule 2.1 (which
schedule  shall  indicate  which assets are owned and which assets are leased or
otherwise held),  together with any  replacements or  modifications  thereof and
additions  thereto  made  between the date  hereof and 



<PAGE>
                                      -5-


the Closing Date in the ordinary  course of business and in accordance  with the
provisions of this Agreement.

         2.2.  All rights,  permits,  trade names,  service  marks,  slogans,
customer lists,  logos,  jingles,  goodwill and other intangible  property used,
necessary or useful in  connection  with the  operation of the Stations and that
the  Seller  either  owns or has  the  power  to  transfer,  including,  without
limitation,  the Licenses and any renewals or modifications  thereof between the
date  hereof  and  the  Closing  Date,  the  call  signs  "WMYF-AM,"  "WERZ-FM,"
"WZNN-AM," and  "WSRI-FM",  all logos and artwork  associated  therewith and the
Licenses,  including, without limitation, those listed on Schedule 2.2, together
with any replacements thereof and additions thereto made between the date hereof
and the Closing Date in the ordinary  course of business and in accordance  with
the provisions of this Agreement.

         2.3.  Real Property and Related Assets. The Buildings,  the Premises
and the Appurtenant Rights.

         2.4.  Contracts,  etc. All of the Seller's right, title and interest
in and to those particular agreements,  whether written or oral, and any and all
extensions  thereof that are used,  necessary or useful in  connection  with the
operation are entered into subsequent to the date of this Agreement and prior to
the  Closing  Date  in  the  ordinary  course  of  the  Seller's   business  and
consistently with the Seller's customary  operation of the Stations,  subject to
the are entered into  subsequent to the date of this  Agreement and prior to the
Closing  Date outside of the  ordinary  course of the  Seller's  business if the
Buyer on the  Closing  Date  elects to assume  such  agreements  pursuant to the
Assumption Agreement,  including, without limitation, the Service Agreements and
the Leases.

         2.5. Excluded Assets. The Acquired Assets being sold to the Buyer do
not include (a) the Stations' cash on hand and in banks,  (b) the Stations' cash
equivalents,  (c) the Stations' accounts  receivable,  and (d) the rights of the
Seller  under  this  Agreement  and  the  Escrow  Agreement  (collectively,  the
"Excluded Assets").

         2.6. Non-Competition Agreement. The Buyer and the Seller shall enter
into the Non-Competition Agreement.

         2.7.  Employee  Matters.  Buyer  shall have the  right,  but not the
obligation,  to  hire  substantially  all  of  the  employees  of  the  Stations
immediately following the Closing.  Except as expressly provided for in the Time
Brokerage Agreement,  Seller shall be responsible for all salary and benefits of
the  employees of the Stations  for the period  prior to the Closing  Date.  All



<PAGE>
                                      -6-



employees of the Stations  shall cease active  participation  in all of Seller's
employee benefit plans on the Closing Date, in accordance with the terms of such
plans.

         SECTION 3.  PAYMENTS.

         3.1.  Purchase price for Acquired Assets and Contracts.  On the date
hereof the Buyer has delivered the Escrow  Deposit to the Escrow Agent  pursuant
to the Escrow Agreement.  At the Closing,  the Buyer shall pay to the Seller, as
the  aggregate  purchase  price for the Acquired  Assets and Contracts an amount
equal to $6,000,000 (the "Purchase  Price"),  plus or minus, as the case may be,
the amount of any proration adjustment required by Section 6. The Purchase Price
will be paid by delivery  by the Buyer to the Seller of a bank wire  transfer or
other  immediately  available  funds to a bank or banks  designated by Seller in
writing.  In addition to the payment of the Purchase Price,  the Buyer shall pay
to the  Seller  $32,500  each  month  under  the  terms  of the  Time  Brokerage
Agreement.

         3.2.  Allocation  of Purchase  Price.  The  Purchase  Price shall be
allocated,  for tax purposes,  in accordance with the results of an appraisal of
the Acquired Assets that is prepared by Broadcast Investments Analysts, Inc.

         SECTION 4. ASSUMPTION OF CERTAIN OBLIGATIONS. At the Closing, the Buyer
shall assume and agree to pay,  perform  fulfill and discharge,  pursuant to the
Assumption  Agreement,  those obligations of the Seller under the Contracts that
accrue after the Closing and that relate to events that transpire  subsequent to
the Closing.  Anything in this  Agreement to the contrary  notwithstanding,  the
Buyer shall not assume,  shall not be deemed to have  assumed,  and shall not be
responsible  for any  liability  or  obligation  of the Seller  other than those
obligations  assumed pursuant to the Assumption  Agreement.  Schedule 4 attached
hereto  sets  forth  all  barter  and  other  trade  obligations  of the  Seller
outstanding on the date hereof.

         SECTION 5.  CLOSING.

         5.1. Time and Place. The closing (the "Closing") of the purchase and
sale transactions contemplated by this Agreement shall take place on the Closing
Date at the offices of  Bingham,  Dana & Gould at 150  Federal  Street,  Boston,
Massachusetts at the time designated in the Buyer's notice to the Seller,  or at
such other time and place as the parties mutually agree.

         5.2.  Transactions at Closing. At the Closing:  (a) the Seller shall
duly  execute  and  deliver  to the  Buyer  the  Deed  and  such  bills of sale,
certificates  of title and other  instruments  of  assignment  or transfer  with
respect to the Acquired  Assets and the  Contracts  as the Buyer may  reasonably
request and as may be reasonably  necessary to vest in the Buyer title to all of
the




<PAGE>
                                      -7-


Acquired  Assets and rights to enjoy and  enforce  the  Contracts,  in each case
subject to no Encumbrance except for the Encumbrances  specified in Schedule 5.2
(the "Permitted Encumbrances");  (b) with respect to any agreements entered into
subsequent to the date of this  Agreement and which were not entered into (i) in
the  ordinary  course of the  Seller's  business  consistent  with the  Seller's
customary  operation of the Stations or (ii) with the Buyer's  written  consent,
the Buyer shall notify the Seller which of such  agreements  the Buyer elects to
assume as  Contracts;  (c) the Buyer  shall  deliver  to the Seller by bank wire
transfer or other immediately available funds the Purchase Price; (d) the Seller
and Buyer shall execute and deliver the Non-Competition  Agreement;  and (f) the
Seller shall deliver the Station Records to the Buyer at the Stations.

         SECTION  6.  ADJUSTMENTS.  Except  as  expressly  set forth in the Time
Brokerage Agreement,  the operation of the Stations, the Acquired Assets and the
Contracts and the income and the expense attributable  thereto,  including,  but
not limited to, utilities,  rent, deposits,  prepaid and accrued items, payroll,
vacation and severance pay earned but not paid,  and property or other taxes and
assessments  applicable  to the Acquired  Assets and  Contracts up to 12:01 a.m.
current  local time on the  Closing  Date shall be for the account of the Seller
and thereafter for the account of the Buyer,  and such income and expenses shall
be prorated  between the account of the Seller and Buyer and net settlement made
on the Closing  Date as far as  feasible,  by means of an addition to or, as the
case may be,  subtraction  from the  Purchase  Price.  If the amount of any such
items cannot be readily  ascertained on the Closing Date,  proration of all such
items shall be made on one occasion as soon after the Closing Date as the amount
thereof is ascertainable, and in any event within ninety (90) days following the
Closing Date.  All prorations  and  adjustments  made pursuant to this Section 6
shall be made in  accordance  with  generally  accepted  accounting  principles.
Nothing  in this  Section  6 shall  be  deemed  to apply  to  accountants  fees,
appraisal costs and legal expenses incurred by either party hereto in connection
with the transactions contemplated hereby.

         SECTION 7.  REPRESENTATIONS  AND  WARRANTIES OF THE SELLER.  The Seller
represents and warrants to the Buyer as follows:

         7.1.  Organization  Authority;  Binding  Effect.  The  Seller  is  a
corporation  duly organized and validly  existing under the laws of the State of
Delaware  and is duly  qualified  and  authorized  to do  business  as a foreign
corporation in the State of New  Hampshire.  The Seller has the power to own and
hold the  Acquired  Assets,  to carry on the  business  of the  Stations  as now
carried  on  by  it  and  to  enter  into  and  perform  this   Agreement,   the
Non-Competition  Agreement and the Assumption Agreement. This Agreement has been
duly executed and delivered by the Seller and constitutes, and when 



<PAGE>
                                      -8-


executed and delivered, each of the Non-Competition Agreement and the Assumption
Agreement  will have been duly executed and delivered and will  constitute,  the
legal,  valid and binding  obligation of the Seller,  enforceable  against it in
accordance with their respective terms.

         7.2.  Financial  Statements,  etc.  The Seller has  furnished to the
Buyer complete and correct  copies of its audited  balance sheets and profit and
loss  statements  for the Stations as at December 31, 1996,  for the period then
ended and its unaudited  balance  sheets and profit and loss  statements for the
Stations at March 31, 1997,  for the calendar  year then ended.  Such  financial
statements have been prepared in accordance with generally  accepted  accounting
principles on a consistent  basis  throughout  the periods  indicated and fairly
present the financial condition of the Stations as at the date specified therein
and the results of their operations for the period then ended,  subject to audit
and normal year-end adjustments.

         7.3.  Title to Acquired Assets,  etc. The Acquired Assets constitute
all of the Seller's assets (other than the Excluded  Assets) used,  necessary or
useful in connection  with the  operation of the Stations.  Except for Permitted
Encumbrances, the Seller has good and valid title to all of the Acquired Assets,
free and clear of all leases, mortgages,  restrictions, liens, options, pledges,
charges,   security  interests,   encumbrances  or  title  retention  agreements
(collectively,  "Encumbrances").  Each of the Contracts is valid and  subsisting
and no event or condition exists that  constitutes,  or after notice or lapse of
time or both would  constitute,  a material  default  thereunder  or other event
which  would  allow  cancellation  or early  termination  by the other  party or
parties  thereto.  All of the Acquired Assets are  transferable by the Seller by
the  Seller's  sole act and  deed  and at the  Closing  Date no  certain  of the
Contracts  described  in Schedule  2.3 may be assigned  only with the consent of
third parties,  each of such required  consents being specified in Schedule 2.3.
All of the Acquired Assets are in good operating condition and repair,  ordinary
wear and tear  excepted,  are  suitable for the purposes for which they are used
and comply with all requirements of the FCC.

         7.4. FCC Licenses. The Seller is the holder of unrestricted licenses
and  other  authorizations  issued  by the FCC,  copies  of which  licenses  and
authorizations   are  attached  hereto  as  Schedule  7.4   (collectively,   the
"Licenses"),  that  authorize  the Seller to operate the Stations in  accordance
with those specifications also set forth in the Licenses. The Licenses have been
duly and validly issued, are in full force and effect, and are transferable with
the consent of the FCC.  The  Licenses  are valid  through  the dates  indicated
thereon. There are no orders, complaints,  proceedings or investigations pending
or, to the Seller's knowledge,  threatened that would affect the validity of the
Licenses,  




<PAGE>
                                      -9-


other than FCC rulemaking  procedures of general  application.  The Stations and
the Real Estate are in compliance in all material respects with the terms of the
Licenses and all material statutes,  rules,  regulations and policies of the FCC
or any federal,  state or local agencies having  jurisdiction over the Stations,
including all applicable radio signal transmission,  electromagnetic  radiation,
zoning, building and environmental laws, rules and regulations. All transmitters
used or useful in the  operation  of the  Stations  now operate in a manner such
that any FCC action for which environmental factors must be considered would not
constitute a major action as defined in 47 C.F.R.  1.1305 as in effect on the
date hereof.

         7.5.   Intellectual  Property.  Except  as  otherwise  disclosed  on
Schedule 2.2, the Seller owns or licenses all trade names, service marks, logos,
slogans,  jingles and other intellectual  property used for the operation of the
Stations, all of which are being assigned to the Buyer hereunder. To the best of
the  Seller's   knowledge  after  due  diligence  and  inquiry,   none  of  such
intellectual  property infringes any intellectual  property or related rights of
third  parties nor is any third party  infringing  on the  Seller's  rights with
respect to such intellectual property.

         7.6.  Employees of the Seller.  Attached hereto as Schedule 7.6 is a
complete  and accurate  list of all of the officers and  employees of the Seller
employed  primarily in  connection  with the  operation of the  Stations,  their
respective monthly rates of compensation as of the date hereof and their accrued
vacation entitlement, if any.

         7.7.  Approval by Governmental Agencies.  Except for the FCC Consent
and the  filings  required  pursuant  to the HSR Act (if any) and the  rules and
regulations  issued  thereunder,  no approval of or filing with any governmental
administrative  agency or authority is required for the execution or delivery of
this  Agreement  by  the  Seller  or  the   consummation  of  the   transactions
contemplated herein.

         7.8. No Unlisted Agreement.  The Seller is not a party to or subject
to or covered by any other material  agreement or plan or policy relating to the
operation of the Stations or the  employment  of the  Stations'  employees.  Any
unfunded liabilities of the Seller with respect to any such agreements, plans or
policies comprising pension or other employee benefits are set forth in Schedule
7.8.  Each of  Schedule  2.3 and  Schedule  4  accurately  sets forth all of the
material terms of the Seller's barter and other trade agreements assigned to the
Seller  pursuant to this  Agreement  and in existence on the date hereof,  which
terms, including,  without limitation,  the rates at which station radio time of
any of the  Stations  is  traded,  are  consistent  with the  Seller's  historic
practice with respect to such barter or other trade agreements.




<PAGE>
                                      -10-


         7.9.  Labor Laws. The Seller has complied with all applicable  laws,
rules,  collective  bargaining  agreements,  and  regulations  pertaining to the
employment  of labor or the provision of personnel  benefits in connection  with
the Stations. The Seller has paid all taxes and withheld all amounts required by
law or agreement to be withheld from compensation of the Stations' employees and
is not liable for  arrears of wages or for tax or penalty  for failure to comply
with the foregoing.  There are no  controversies  pending or, to the best of the
Seller's  knowledge,  threatened  between  the Seller and the  employees  of the
Stations which would have a Materially Adverse Effect.

         7.10.  Records and Reports. Except to the extent that the failure to
comply with such rules of the FCC has, and will have, no material  impact on the
ownership, operation or transfer of the Stations; (a) all statements relating to
the  Stations  currently  required to be filed by the Seller with the FCC or any
governmental  instrumentality have been filed and complied with and are complete
and correct as filed;  (b) all such statements shall be continued to be filed on
a current  basis until the  Closing  Date,  and will be complete  and correct as
filed; (c) all items required by the FCC to be placed in the local public record
files of the Stations  have been placed in such files and are in  possession  of
the  Seller,  and all such  documents  are  complete  and  correct;  and (d) all
required  logs and business  records  relating to the  operation of the Stations
have  been  maintained  in  accordance  with  the  rules  of the  FCC and are in
possession of the Seller. The Seller's local public files will be transferred to
the Buyer at the Closing and will be complete and up-to-date.

         7.11. Insurance. The Seller currently maintains, with respect to all
of the insurable  assets of the  Stations,  the  insurance  policies  listed and
described on Schedule 7.11.

         7.12.  Brokers.  Seller has  neither  employed  nor is liable to any
broker,  finder or any other third  party in  connection  with the  transactions
contemplated by this Agreement.

         7.13.  Disclosure.  No  representation  or warranty by the Seller in
this  Agreement  or in any other  document  delivered  or to be delivered to the
Buyer in connection  herewith contains or will contain any untrue statement of a
material  fact or omits or will omit to state a  material  fact  required  to be
stated  therein  or  necessary  to make the  statements  contained  therein  not
misleading  or  necessary  in order to provide a  prospective  purchaser  of the
business of the Seller with proper and complete information as to the Seller and
the identity and character of the Acquired Assets and the Contracts. There is no
material  fact  known  to the  Seller  relating  to  the  Acquired  Assets,  the
Contracts,  the  operation  of the  Stations  with the  Acquired  Assets and the
Contracts or liabilities arising therefrom that may materially  adversely affect
the same and that has not been disclosed to the Buyer in writing.




<PAGE>
                                      -11-


         7.14.  Environmental  Matters.  In  the  course  of  any  activities
conducted by the Seller in connection with the Real Estate,  Seller has complied
in all material respects with all federal,  state and local  environmental laws,
rules and regulations  applicable to the Stations and its operations,  including
but not limited to the FCC's guidelines  regarding RF radiation,  and Seller has
actual knowledge of no facts which would constitute a material violation of such
laws, rules and regulations with respect to the Real Estate or the Stations.

         7.15. Litigation. Except as set forth in Schedule 7.15 hereto, there
are no actions, suits,  proceedings or investigations of any kind pending or, to
the best  knowledge  of the Seller,  threatened  against  the Seller  before any
court, tribunal or administrative agency or board that, if adversely determined,
would, either in any case or in the aggregate, have a Materially Adverse Effect.

         7.16. Authorization. The execution, delivery and performance of this
Agreement,  the Non-Competition  Agreement and the Assumption  Agreement and the
performance by the Seller of all of its agreements and obligations under each of
such  documents (a) are within the corporate  authority of the Seller,  (b) have
been duly authorized by all necessary corporate proceedings, (c) do not conflict
with or result in any breach or contravention of any provision of law,  statute,
rule or regulation to which the Seller is subject or any judgment, statute, rule
or  regulation  to which the  Seller is subject or any  judgment,  order,  writ,
injunction,  license or permit applicable to such Person and (d) do not conflict
with any provision of the corporate charter or bylaws of, any agreement or other
instrument binding upon the Seller.

         SECTION 8.  REPRESENTATION,  WARRANTIES AND COVENANTS BY THE BUYER. The
Buyer represents and warrants to the Seller as follows:

         8.1. Organization;  Authority;  Approvals; Binding Effect. The Buyer
is a corporation duly organized and validly existing under the laws of the State
of Delaware.  The Buyer has the power to enter into and perform this  Agreement,
the Non-Competition  Agreement and the Assumption Agreement.  This Agreement has
been duly executed and delivered by the Buyer and constitutes, and when executed
and delivered hereunder by the Buyer, each of the Non-Competition  Agreement and
the  Assumption  Agreement,  will have been duly  executed by the Buyer and will
constitute,  the legal, valid and binding  obligation of the Buyer,  enforceable
against the Buyer in accordance with its terms.

         8.2. Authorization.  The execution, delivery and performance of this
Agreement,  the Non-Competition  Agreement and the Assumption  Agreement and the
performance by the Buyer of all of its agreements and obligations  under each of
such  documents  (a) are within the corporate  authority of the Buyer,  (b) have
been duly authorized by all necessary corporate proceedings, (c) do not conflict
with or result in any breach or contravention of 




<PAGE>
                                      -12-


any provision of law, statute,  rule or regulation to which the Buyer is subject
or any judgement,  order, writ, injunction,  license or permit applicable to the
Buyer and (d) do not conflict with any provision of the  corporation  charter or
bylaws of, any agreement or other instrument binding upon the Buyer.

         8.3.  Governmental  Consent.  Except for the FCC Consent and filings
required  by the  HSR  Act,  if  any,  and  the  rules  and  regulations  issued
thereunder, no approval of or filing with any governmental administrative agency
or authority is required for the execution or delivery of this  Agreement by the
Buyer or the consummation of the transactions contemplated herein.

         8.4.  Brokers.  Buyer  has  neither  employed  nor is  liable to any
broker,  finder or any other third  party in  connection  with the  transactions
contemplated by this Agreement.


         8.5.  Disclosure. No representation or warranty by the Buyer in this
Agreement or in any other document delivered or to be delivered to the Seller in
connection  herewith  contains or will contain any untrue  statement of material
fact or omits or will  omit to  state a  material  fact  required  to be  stated
therein.

         SECTION 9. AGREEMENTS BY THE SELLER PENDING CLOSING DATE.


         9.1. Affirmative Covenants.  Between the date hereof and the Closing
Date, the Seller shall:

                  (a)  subject  to the  terms of the Time  Brokerage  Agreement,
         maintain the Stations  Records in accordance with the Seller's  current
         practice,  and, from time to time,  upon  reasonable  notice and during
         regular  business  hours,  give to  representatives  of the Buyer  full
         access to the Stations Records and cooperate in discussing the business
         and affairs of the Seller with the representatives of the Buyer;

                  (b) subject to the terms of the Time Brokerage Agreement, keep
         in good repair and maintain  all of the property  related to or used in
         the Stations in good  operating  condition and in  accordance  with FCC
         regulations and the Seller's current practice;

                  (c) maintain at all times with respect to all of the Stations'
         insurable  assets  the  insurance   policies  currently  in  effect  or
         substantially   similar  policies  with  other  financially  sound  and
         reputable insurers;

                  (d)  subject  to the  terms of the Time  Brokerage  Agreement,
         conduct  continuously  the  broadcast  programs and the business of the
         Stations  with  due   diligence  in  accordance   with  the  terms  and
         requirements  of  the  Licenses  and  use  the  Seller's   commercially
         reasonable




<PAGE>
                                      -13-


         efforts to preserve and maintain the  Stations'  business  organization
         and the goodwill and support of the Stations'  listeners,  advertisers,
         employees  and  other  persons  having  business   relations  with  the
         Stations;

                  (e) employ the  Seller's  commercially  reasonable  efforts to
         secure,  before the Closing  Date,  the consent,  in form and substance
         satisfactory  to the Buyer,  to the  consummation  of the  transactions
         contemplated  by  this  Agreement  by  each  party  to  any  agreement,
         including,  without limitation, any Contract listed in Schedule 2.3 and
         any  Contract  entered  into after the date  hereof,  under  which such
         transactions  would  constitute a material  default,  would  accelerate
         obligations  of the  Seller  or  would  permit  cancellation  or  early
         termination of any such agreement;

                  (f)  between  the date hereof and for a period of one (1) year
         from the  Closing  Date,  Seller  shall not,  directly  or  indirectly,
         through any agent or otherwise,  hire or solicit the  employment of any
         of the  employees  listed on Schedule  7.7 who are hired by Buyer at or
         after the Closing or who are subject to non-competition agreements with
         Buyer  (but  only  to  the  extent  limited  by  such   non-competition
         agreements), except as agreed to in writing by Buyer and Seller; and

                  (g) comply in all material respects with the terms of the Time
         Brokerage Agreement.

         9.2.  Negative  Covenants.  Between  the date hereof and the Closing
Date,  the Seller shall  operate the Stations only in the ordinary  course,  and
shall  not,  without  the  consent of the Buyer,  do any of the  following:  (a)
create,  incur  or  permit  the  creation  of any  Encumbrance  on the  Seller's
business,  property or assets now owned or hereafter acquired in connection with
the Stations;  (b) except for contracts for the sale of advertising for cash for
which no prepayment  has been received and with not more than twelve (12) months
remaining  in their  term,  and except for such other  contracts  or leases that
involve  commitments  by the Seller not in excess of $50,000 in any one case nor
more than  $100,000 in the  aggregate,  make or become a party to any  contract,
lease or commitment,  or renew, extend,  amend or modify any contract,  lease or
commitment  without the prior  written  consent of the Buyer;  (c) agree to pay,
conditionally  or  otherwise,  any bonus  (other  than  bonuses  in  amounts  or
calculated  according to methods  disclosed to the Buyer and payable as a reward
for continued  satisfactory  performance during the period from the date of this
Agreement to the Closing  Date,  which  bonuses shall be payable by the Seller),
extra compensation,  pension or severance pay to any agent,  officer or employee
or increase the rate of  compensation of any of the officers or employees of the
Seller  above the rates  shown on  Schedule  7.6  except for  certain  regularly
scheduled  annual  raises  noted on Schedule  7.6 which  would  normally be made
between the date of this Agreement and the Closing Date and which are in




<PAGE>
                                      -14-


amounts  consistent  with the Seller's prior  practices;  (d) permit,  either in
violation of the FCC's rules and  regulations  or contrary to the Seller's  past
practices  relating to record retention,  the removal from the Stations,  or the
destruction,  or the  Stations'  Records;  or (e) except to the extent  that FCC
rules and regulations require that such matters be left to the discretion of the
Seller,  change  materially the manner in which the Seller operates the Stations
or the Seller's  practices  with  respect to the  Stations,  including,  without
limitation, the type, quality and amount of promotional support which the Seller
has historically provided to the Stations.

         9.3.  Control of Stations.  Except as expressly  provided for in the
Time Brokerage  Agreement,  the Buyer shall not directly or indirectly  control,
supervise or direct,  or attempt to control,  supervise or direct the operations
of the Stations; such operations,  including complete control and supervision of
all  programs and  employees,  shall be the sole  responsibility  of the Seller.
Without limiting the foregoing,  the Buyer shall not induce any of the employees
of the Seller to leave their  employment  with the Seller or employ or otherwise
contract for the services of any person who is now employed by the Seller at the
time of the  commencement of employment  discussions  between the Buyer and such
person.

         SECTION 10. BEST  EFFORTS TO SECURE  REGULATORY  AUTHORIZATION  AND FCC
CONSENT.

                  (a) If  necessary,  the Seller and the Buyer shall  proceed to
         file,  not later than fifteen (15)  business  days  following  the date
         hereof,  with the FTC and the  Antitrust  Division of the United States
         Department  of Justice  notification  and report forms and  documentary
         material  which comply with the provisions of the HSR Act and the rules
         and  regulations  issued   thereunder,   and  will  promptly  file  any
         additional  information  requested as soon as practicable after receipt
         of the request. Neither of the Buyer or the Seller will take any action
         which will have the  effect of  delaying,  impairing  or  impeding  the
         receipt of any required  approvals and both such parties will use their
         best efforts to secure such approvals as promptly as possible.

                  (b) The Seller and Buyer shall proceed to file, not later than
         ten (10) business days following the date hereof,  proper  applications
         with the FCC  requesting  the FCC Consent,  and shall file with the FCC
         thereafter any other  instruments  necessary to obtain the FCC Consent,
         including additional information or amendments to the application,  and
         shall  cooperate  fully with one another and shall  otherwise use their
         best efforts to procure the FCC Consent at the earliest  possible date.
         Without  limiting the foregoing,  neither the Buyer nor the Seller will
         take any action  which will have the effect of  delaying,  impairing or
         impeding  the 




<PAGE>
                                      -15-


         receipt of the FCC Consent.  All costs of obtaining such consents shall
         be borne equally by the Seller and the Buyer.

         SECTION 11. CONDITIONS PRECEDENT TO THE BUYER'S  OBLIGATIONS.  Each and
every obligation of the Buyer to be performed at the Closing shall be subject to
the satisfaction of the following conditions (to the extent noncompliance is not
waived in writing by the Buyer):

         11.1.  Representations,  Warranties and Covenants of the Seller. The
representations  and  warranties  of the  Seller set forth in Section 7 shall be
true and correct in all  material  respects as of the Closing Date with the same
force and effect as though made again at and as of the Closing Date,  except for
changes  contemplated  and permitted or required by this  Agreement.  The Seller
shall have  performed and complied in all material  respects with all agreements
and  conditions  required by this  Agreement to be performed or complied with by
the Seller  prior to or at the  Closing.  The Seller  shall  have  executed  and
delivered,  in substantially the forms attached hereto, the Deed, the Assumption
Agreement,  Bill of Sale,  assignments  of the Licenses and the  Non-Competition
Agreement.   The  Seller  shall  have   delivered  to  the  Buyer  the  Seller's
certificate, dated as of the Closing Date, stating that the conditions set forth
in  this  Section  11.1  have  been  satisfied,  together  with a good  standing
certificate  relating  to the Seller and  issued by each of the  Secretaries  of
State of Delaware and New Hampshire, respectively.

         11.2.  Governmental  Agency  Approvals.  The FCC Consent  shall have
become  effective  and each other  governmental  agency the approval of which is
required prior to the  consummation of any of the  transactions  contemplated by
this Agreement shall have approved such transaction on the terms contemplated by
this Agreement and the applicable (if any) waiting periods under the HSR Act and
the rules and regulations  issued  thereunder shall have expired;  provided that
the parties  hereto shall have  complied  with the  provisions  of Section 10(a)
hereof.





<PAGE>
                                      -16-


         11.3. Public Records File; Other Books and Records; Barter and Other
Trade  Agreements.  The Seller shall have  delivered to the Buyer on the Closing
Date all books and  records (or copies  thereof)  of the Seller  relating to the
Seller's operation of the Stations  (collectively,  the "Stations' Records"), as
of the Closing  Date.  The Seller shall deliver at the Closing a schedule of all
of its  current  barter  and  other  trade  agreements  and a  statement  of its
outstanding  net barter and other trade  balances as of the Closing Date.  For a
period of not less than one (1) year after  Closing,  the Buyer agrees to retain
any  Stations'  Records  in  its  possession.  If  required  by the  Seller  for
regulatory,  audit, tax or other reasonable and similar purposes, the Buyer will
grant the Seller  reasonable  access to, or make copies of the Stations' Records
relating to the pre-closing operations of the Stations as are in its possession.
The Seller will pay the Buyer the costs of copying such Stations'  Records.  The
Buyer will not destroy any of the Stations'  Records relating to the pre-closing
operations of the Stations prior to six (6) years after the Closing Date without
notifying  the Seller and  allowing  the other party to take  possession  of and
preserve such Stations' Records.

         11.4.  Consents.  Each other party to each of the  Leases,  and each
other party to any Service Agreement or any other Contract or would constitute a
default giving rise to a claim for damages or injunctive relief which would have
a Materially Adverse Effect) shall have given such consent, at no expense to the
Buyer,  in a form and substance  approved by the Buyer (which approval shall not
be unreasonably withheld), as may be necessary to permit the consummation of the
transactions contemplated by this Agreement, all without default or acceleration
under or early termination or cancellation of such agreement and without charge.

         11.5.  No Materially  Adverse Change.  No action or proceeding shall
have  been  instituted,  and no  order,  decree  or  judgment  of any  court  or
governmental authority shall be subsisting, against the Buyer or the Seller that
would render it unlawful,  as of the Closing  Date,  to effect the  transactions
contemplated hereunder in accordance with the terms hereof or that would affect,
as of the Closing Date, the validity of the Licenses.

         11.6.  Opinion of Counsel.  The Seller  shall have  delivered to the
Buyer on the Closing Date (a) a reasonable  satisfactory  opinion from  Bingham,
Dana & Gould,  special counsel for the Seller, dated as of the Closing Date, and
(b) a reasonably satisfactory opinion of Kaye, Scholer,  Fierman, Hays & Handler
LLP, special FCC counsel to the Seller,  dated as of the Closing Date, as to the
matters set forth in Section 7.4 and the validity of the FCC Consent.

         11.7.  Condition of Property.  The Premises and  Buildings as of the
Closing  Date  shall  be in the  same  condition  they  are on the  date of this




<PAGE>
                                      -17-



Agreement  subject to the terms of this Agreement,  reasonable wear and tear and
physical  damage the repair of which can be  effected  for not more than  $5,000
only excepted,  and free of all tenants and occupants except as permitted by the
terms  of this  Agreement,  and in  conformity  with the  terms of all  recorded
Permitted Encumbrances.

         11.8.  Title Insurance Affidavits,  Etc. Seller shall have delivered
such standard  parties-in-possession  and mechanics' lien affidavits,  corporate
votes and the like as may be reasonably  required by the Title Insurance Company
for it to issue the Title  Policy as  provided  above.  In  addition,  the Title
Policy shall have been issued to Buyer at standard rates by the Title  Insurance
Company.

         11.9.  Non-Foreign  Affidavit.  Seller  shall have  delivered  (a) a
transferor's   certification  of  non-foreign  status  as  required  by  Section
1445(b)(2) of the Internal Revenue Code and (b) a currently  operative Occupancy
Permit.

         11.10. Additional Certificates and Other Documents. On or before the
Closing  Date,  the Seller  shall have  furnished  to the Buyer such  additional
certificates  and other documents as the Buyer may have reasonably  requested as
to any of the  conditions  or  other  matters  set  forth  in this  Section  11,
including, without limitation, as to compliance with Section 11.1.

         SECTION 12. CONDITIONS PRECEDENT TO THE SELLER'S OBLIGATIONS.  Each and
every  obligation  of the Seller to be performed at the Closing shall be subject
to the satisfaction of the following  conditions (to the extent noncompliance is
not waived in writing by the Seller):

         12.1.  Representations,  Warranties and Covenants of the Buyer.  The
representations and warranties of the Buyer set forth in Section 8 shall be true
and  correct as to all  material  matters as of the  Closing  Date with the same
force and effect as though made again at and as of the Closing Date,  except for
changes  contemplated  and  permitted or required by this  Agreement.  The Buyer
shall have tendered to the Seller the Purchase Price, executed and delivered the
Non-Competition  Agreement and performed and complied with all other  agreements
and  conditions  required by this  Agreement to be performed or complied with by
the Buyer  prior to or at the  Closing.  The Buyer shall have  delivered  to the
Seller a certificate,  dated as of the Closing Date, stating that the conditions
set forth in this Section 12.1 have been satisfied.

         12.2.  Governmental  Agency  Approvals.  The FCC Consent  shall have
become  effective  and each other  government  agency the  approval  of which is
required prior to the  consummation of any of the  transactions  contemplated by
this Agreement shall have approved such transaction on the terms contemplated by
this  Agreement  and the  applicable  waiting  periods under 




<PAGE>
                                      -18-


the HSR Act and the rules and regulations  issued thereunder shall have expired;
provided  that the parties  hereto shall have  complied  with the  provisions of
Section 10(a) hereof.

         12.3. No Obstructive Proceeding.  No action or proceeding shall have
been  instituted,  and no  order,  decree  or  judgment  of any  court,  agency,
commission or governmental  authority shall be subsisting,  against the Buyer or
the Seller that would render it unlawful,  as of the Closing Date, to effect the
transactions contemplated hereunder in accordance with terms hereof.

         12.4.  Opinion of  Counsel.  The Buyer shall have  delivered  to the
Seller on the Closing Date an opinion from Michael  Milsom,  General Counsel for
the Buyer, that is in form and detail reasonably satisfactory to the Seller.

         SECTION 13.  INDEMNIFICATION BY BUYER.

         13.1.  Indemnification  of Seller. The Buyer agrees to indemnify and
hold  the  Seller  harmless  from  and  with  respect  to any  and  all  claims,
liabilities,   losses,   damages,   costs  and  expenses  (including  reasonable
attorney's  fees)  arising  from or  related  to any of the  following:  (a) any
material inaccuracies in any representation or warranty made by the Buyer herein
or in any  document  delivered  by the  Buyer  in  connection  herewith,  or any
material  failure by the Buyer to comply with any covenant  made by the Buyer in
this Agreement or any such  document;  (b) any and all claims,  liabilities  and
obligations arising out of the ownership or operation following the Closing Date
of the Stations or the Acquired Assets or the performance  following the Closing
Date of the Contracts;  provided that such claims,  liabilities  and obligations
are not based  solely  on facts  existing  prior to the  Closing  Date;  (c) any
claims,  liability  or  obligation  with respect to any employee of the Buyer in
connection  with his or her employment by the Buyer  following the Closing Date;
or (d) any loss,  cost or expense of the Seller  relating  to the failure of the
Buyer to comply in any material  respect with the provisions of this Section 13,
provided  that  Buyer  shall have no  liability  under  this  13.1  until the
aggregate for all claims  hereunder  exceeds the sum of $20,000 (the  "Threshold
Amount"),  in  which  event  Buyer  shall  then be  liable  for all  claims  for
indemnification hereunder, including the Threshold Amount.

         13.2.  Claims.  In the event that the Seller desires to make a claim
against the Buyer under Section  13.1,  the Seller shall notify the Buyer within
ninety (90) days of the date on which Seller  becomes  aware of all of the facts
and  circumstances  giving rise to such claim.  Upon receipt of such notice from
the Seller of any claim made by a third  party,  the Buyer  shall be entitled to
assume the  defense of such  claim,  and in the case of such an  assumption  the
Buyer shall have the authority to negotiate, compromise and settle such claim at
its sole expense and cost,  provided,  that any such settlement shall include as
an 




<PAGE>
                                      -19-


unconditional  term  thereof  the giving by such third  party to the Seller of a
release from all liability in respect of such claim.

         13.3.  Limitation.  No claim may be made pursuant to this Section 13
unless notice thereof pursuant to Section 13.2 has been given on or prior to the
second anniversary of the Closing Date;  provided that if and to the extent that
the  Seller  continues  to be liable  directly  to the third  parties  under any
Contract  such time  limitation  shall not apply  with  respect  to claims  made
pursuant to this  Section 13 and relating to the  performance  after the Closing
Date of such Contracts. No claim may be made in respect of any matter covered by
Section 13.1,  including but not limited to any claim by the Seller based on any
inaccuracy of any representation or warranty made by the Buyer,  except pursuant
to the provisions of this Section 13.

         SECTION 14.  INDEMNIFICATION BY SELLER.

         14.1.  Indemnification  of Buyer. The Seller agrees to indemnify and
hold  the  Buyer  harmless  from  and  with  respect  to  any  and  all  claims,
liabilities,   losses,   damages,   costs  and  expenses  (including  reasonable
attorney's  fees)  arising  from or  related  to any of the  following:  (a) any
material  inaccuracies  in any  representation  or  warranty  made by the Seller
herein or in any document delivered by the Seller in connection herewith, or any
material failure by the Seller to comply with any covenant made by the Seller in
this Agreement or any such  document;  (b) any and all claims,  liabilities  and
obligations arising out of the ownership or operation on or prior to the Closing
Date of the Stations or the Acquired  Assets or the  performance  on or prior to
the Closing Date of the Contracts;  provided that such claims,  liabilities  and
obligations are based on facts which came into existence after the Closing Date;
(c) any claim or liability  arising  under the bulk sales or related tax laws of
any jurisdiction in connection with transactions  contemplated by this Agreement
(in view of such indemnification obligation the Buyer hereby waives the Seller's
compliance  with any such bulk sales and related tax laws as a condition  to the
Closing hereunder);  (d) any claims, liability or obligation with respect to any
employee  of  the  Seller  in  connection  with  his or  her  employment  and/or
termination of employment on or prior to the Closing Date by the Seller; (e) any
and all claims or counterclaims  arising in connection with the Excluded Assets;
or (f) any loss,  cost or expense of the Buyer  relating  to the  failure of the
Seller to comply in any material respect with the provisions of this Section 14,
provided  that  Seller  shall have no  liability  under this  14.1  until the
aggregate for all claims hereunder  exceeds the Threshold Amount, in which event
Seller shall be liable for all claims for indemnification  hereunder,  including
the Threshold Amount.

         14.2.  Claims.  In the event that the Buyer  desires to make a claim
against the Seller under Section 14.1,  the Buyer shall notify the Seller 




<PAGE>
                                      -20-


within  ninety (90) days of the date on which Buyer  becomes aware of all of the
facts and  circumstances  giving rise to such claim. Upon receipt of such notice
from the Buyer of any claim made by a third party,  the Seller shall be entitled
to assume the defense of such claim,  and in the case of such an assumption  the
Seller shall have the authority to negotiate,  compromise  and settle such claim
at its sole expense and cost;  provided,  that any such settlement shall include
as an unconditional  term thereof the giving by such third party to the Buyer of
a release from all liability with respect to such claim.

         14.3.  Limitations. No claim may be made pursuant to this Section 14
unless notice thereof pursuant to Section 14.2 has been given on or prior to the
second  anniversary  of the Closing  Date,  or, if the claim  relates to any tax
liability or claim,  the third  anniversary of the Closing Date. No claim may be
made in respect of any matter covered by Section 14.1, including but not limited
to any claim by the  Buyer  based on any  inaccuracy  of any  representation  or
warranty made by the Seller,  except  pursuant to the provisions of this Section
14.

         SECTION 15.  TERMINATION OF AGREEMENT.

         15.1.  Termination. This Agreement may be terminated by either Buyer
or Seller (as long as such party has complied in all material  respects with its
covenants and agreements under this Agreement) upon the occurrence of any of the
following:

                  (a) if,  on or prior to the  Closing  Date,  the  other  party
         hereto defaults in any material respect in the observance or in the due
         and timely  performance  of any of its covenants or  agreements  herein
         contained  and such default  shall not be cured within thirty (30) days
         of the date of notice of  default  served  by the party  claiming  such
         default; or

                  (b) on ten (10)  days  written  notice if the FCC  denies  any
         application  requesting  the FCC Consent,  or if the FCC fails to grant
         the FCC  Consent  within  six (6)  months  following  the  date of this
         Agreement,  provided,  that  Seller  shall  extend  such time  limit an
         additional one (1) month at the request of Buyer so long as Buyer shall
         be diligently prosecuting the FCC Application in good faith and the FCC
         has not issued any ruling or decision denying the FCC Application; or

                  (c) if there shall be in effect any judgment,  decree or order
         that would prevent or make unlawful the Closing of this Agreement; or

                  (d) by Buyer only,  if between the date hereof and the Closing
         Date the Stations  for any reason  (other than the failure of the Buyer
         to comply  with the  terms of the Time  Brokerage  Agreement)  does not
         broadcast at  substantially  full licensed power and antenna heights 




<PAGE>
                                      -21-


         as  described  in the License  (an "Off Air  Event")  for a  continuous
         period of five (5) days or if all Off Air Events result in an aggregate
         of five (5) days  wherein  the  Stations  does  not  broadcast  at full
         licensed  power and  antenna  height or if there are more than four (4)
         Off Air Events, each lasting six (6) hours or more.

         15.2.  Drawdown of Escrowed Amounts. The Buyer and the Seller hereby
agree that upon the  termination of this Agreement as a result of the failure by
or inability  of the Buyer to comply in any  material  respect with the terms of
this Agreement,  the Escrow Deposit shall be paid to Seller. Seller acknowledges
and agrees that the Escrow  Deposit  shall be the sole and  exclusive  remedy of
Seller against Buyer in connection with such default and termination.

         SECTION 16.  GENERAL.

         16.1.  Expenses.  Except as  otherwise  expressly  provided  in this
Agreement,  all expenses of the preparation,  execution and consummation of this
Agreement  and of the  transactions  contemplated  hereby  shall be borne by the
party incurring such expenses.

         16.2.   Notices.  All  notices,  demands  and  other  communications
hereunder  shall be in  writing or by  written  telecommunication,  and shall be
deemed to have been duly given if delivered personally or if mailed by certified
mail,   return  receipt   requested,   postage  prepaid,   or  sent  by  written
telecommunication,  as  follows:  (a)  if to the  Seller,  to:  Precision  Media
Corporation,  36 Bay State Road,  Cambridge,  Massachusetts  02138 ,  Attention:
Donald F. Law, Jr. and (b) if to the Buyer,  to:  American  Radio  Systems,  116
Huntington Avenue, Boston, Massachusetts 02116, Attention: Steven B. Dodge, CEO.

         16.3.  Further Assurances.  From time to time, at the request of the
Buyer and without  further  consideration,  the Seller shall execute and deliver
such further  instruments of conveyance and transfer and take such other actions
as the Buyer may reasonably  require more effectively to convey and transfer any
of the  Acquired  Assets and to assign any of the  Contracts  to the Buyer.  The
Seller and the Buyer shall also  execute and  deliver to the  appropriate  other
party such other  instruments as may be reasonably  required in connection  with
the  performance of this Agreement and each shall take all such further  actions
as may be reasonably required to carry out the transactions contemplated by this
Agreement.

         16.4.  Full  Consideration;   Risk  of  Loss.  Except  as  otherwise
expressly provided in this Agreement, the Seller shall be responsible to deliver
the Acquired Assets and to assign the Contracts upon the terms of this Agreement
without  further  cost or  expense  to the Buyer and  shall be  responsible  




<PAGE>
                                      -22-


for  satisfying  any and all costs and  expenses  payable  to any third  parties
arising as a result of the  Seller's  delivery  of the  Acquired  Assets and the
assignment  of the  Contracts  to  the  Buyer.  The  risk  of  loss,  damage  or
destruction to any Acquired Asset from any cause whatsoever prior to the Closing
shall  be borne by the  Seller,  who  shall,  prior  to the  Closing  and at the
Seller's own  expense,  repair,  rebuild or replace any Acquired  Asset so lost,
damaged or destroyed (but only to the extent of available insurance proceeds).

         16.5.  Public Statements or Releases.  The parties hereto each agree
that neither party to this  Agreement will make any public  announcement  of the
existence  of, or reveal the status of, the  transactions  provided  for herein,
without the prior  approval of the other party hereto.  Each party hereto agrees
that it will not  unreasonably  withhold  or delay  any such  approval.  Nothing
contained in this  Section 16.5 shall  prevent any party from making such public
announcements  as such party may  consider  necessary  in order to satisfy  such
party's legal or contractual obligations.

         16.6.   NonRecourse   Obligations.   Notwithstanding   any  contrary
provision  contained  in this  Agreement,  the  Non-Competition  Agreement,  the
Assumption Agreement or any other agreement, document or instrument delivered in
connection herewith or therewith, none of the shareholders,  officers, directors
or  employees  of the Buyer or the  Seller nor any legal  representative,  heir,
successor or assignee of any shareholder,  officer,  director or employee of the
Buyer or the Seller shall have any personal liability for any  misrepresentation
or breach of warranty made by the Buyer or the Seller  hereunder or  thereunder,
or any  failure by the Buyer or the  Seller to  perform  or  observe  any of the
terms,  covenants  or  conditions  to be  performed  or  observed  by the  Buyer
hereunder or thereunder or any other obligation arising hereunder or thereunder.
In the event of any such misrepresentation, breach or failure, the Seller or the
Buyer, as the case may be, shall be entitled to proceed solely against the Buyer
or the Seller, as the case may be.

         16.7.  Specific  Performance.  Seller  recognizes that, in the event
Seller refuses to perform the  provisions of this  Agreement,  monetary  damages
alone will not be adequate.  Buyer shall,  therefore, be entitled in such event,
in  addition to bringing  suit at law or equity for money or other  damages,  to
obtain  specific  performance of the terms of this  Agreement.  In any action to
enforce the  provisions of this  Agreement,  Seller shall waive the defense that
there is an  adequate  remedy at law or equity and agrees  that Buyer shall have
the right to obtain specific  performance of the terms of this Agreement without
being required to prove actual damages, post bond or furnish other security.

         16.8.   Miscellaneous.    This   Agreement   contains   the   entire
understanding of the parties, supersedes all prior agreements and understandings
relating  to the  subject  matter  hereof and shall not be  amended  




<PAGE>
                                      -23-


except by a written  instrument  hereafter signed by each of the parties hereto.
The validity and construction of this Agreement shall be governed by the laws of
the State of  Connecticut.  The headings of sections are for reference  only and
shall not limit or control the meaning thereof.  This Agreement shall be binding
upon and  inure to the  benefit  of the  parties  hereto  and  their  respective
successors  and  assigns.  Neither  party may  assign its  interests  under this
Agreement  without the prior consent of the other,  except that Buyer may assign
its  interests to a  wholly-owned  subsidiary  of the Buyer without the Seller's
prior consent (but only if American Radio Systems Corporation remains liable for
all of the  obligations  of such  assignee  arising  hereunder or in  connection
herewith).  The  representations  and warranties of each party contained in this
Agreement  or  otherwise  made in writing in  connection  with the  transactions
contemplated   hereby  shall  be  deemed  material  and,   notwithstanding   any
investigation  by the other  party  hereto,  shall be deemed to have been relied
upon by such other party and shall survive the Closing and the  consummation  of
the transactions  contemplated  hereby.  Except as otherwise  expressly provided
herein, nothing herein expressed or implied is intended or shall be construed to
confer  upon or to give any  person,  other than the  Seller and the Buyer,  any
rights or remedies under or by reason of this  Agreement.  This Agreement may be
executed in several counterparts, each of which shall be deemed an original, but
all of which together shall constitute one and the same instrument.



<PAGE>
                                      -24-



         IN WITNESS WHEREOF,  the parties hereto have executed this Agreement as
of the date first above written.


                                                     PRECISION MEDIA CORPORATION


                                                     By:_______________________

                                                        Title:


                                                     AMERICAN RADIO SYSTEMS
                                                     CORPORATION


                                                     By:_______________________

                                                        Title:


<PAGE>
                                      



                                    EXHIBIT A

                                    Premises


<PAGE>




                                    EXHIBIT B


                              Assumption Agreement


<PAGE>




                                    EXHIBIT C


                                Escrow Agreement



<PAGE>




                                    EXHIBIT D


                            Non-Competition Agreement


<PAGE>




                                   EXHIBIT E-1


                                Farmington Lease


<PAGE>




                                   EXHIBIT E-2


                                 Rochester Lease


<PAGE>




                                   EXHIBIT E-3


                                 Stratham Lease


<PAGE>




                                    EXHIBIT F


                               Service Agreements


<PAGE>




                                    EXHIBIT G


                            Time Brokerage Agreement


<PAGE>




                                  SCHEDULE 2.1


                                 Tangible Assets



<PAGE>




                                  SCHEDULE 2.2

                                Intangible Assets


         Call Signs

         1.       "WMYF-AM"

         2.       "WERZ-FM"

         3.       "WZNN-AM"

         4.       "WSRI-FM"




<PAGE>




                                  SCHEDULE 2.3


                                    Contracts




<PAGE>




                                   SCHEDULE 4


                                 TRADE ACCOUNTS

                                  See Attached




<PAGE>




                                  SCHEDULE 5.2


                             Permitted Encumbrances


                  (i) Liens to secure taxes,  assessments  and other  government
         charges in respect of obligations not overdue or liens on properties to
         secure claims for labor, material or supplies in respect of obligations
         not overdue;

                  (ii) Deposits or pledges made in connection with, or to secure
         payment of, workmen's  compensation,  unemployment  insurance,  old age
         pensions or other social security obligations;

                  (iii)  Encumbrances  on Real Estate  consisting  of easements,
         rights of way,  zoning  restrictions,  restrictions  on the use of real
         property  and  defects  and   irregularities   in  the  title  thereto,
         landlord's  or  lessor's  liens  under  leases to which the Seller is a
         party,  and  other  minor  liens or  encumbrances  none of which in the
         opinion  of  the  Seller  interferes  materially  with  the  use of the
         property affected in the ordinary conduct of the business of the Seller
         which defects do not individually or in the aggregate have a materially
         adverse effect on the business of the Seller; and


<PAGE>




                                  SCHEDULE 7.4


                                    Licenses


         FCC license for WMYF, WERZ, WZNN and WSRI attached hereto as Attachment
7.4.



<PAGE>




                                  SCHEDULE 7.6


                                    Employees


         The attached list  contains  payroll  information  for  bi-monthly  pay
period ending May 11, 1997 for employees of Stations WMYF, WERZ, WZNN and WSRI.



<PAGE>




                                  SCHEDULE 7.8


                              Unfunded Liabilities

                                      None.



<PAGE>




                                  SCHEDULE 7.11


                                    Insurance



<PAGE>




                                  SCHEDULE 7.15


                                   Litigation




                                                                    Exhibit 10.6


                            TIME BROKERAGE AGREEMENT


         TIME BROKERAGE AGREEMENT, made as of this _____ day of __________, 1997
by and between American Radio Systems  Corporation,  a Delaware corporation (the
"Programmer")  and Precision  Media  Corporation,  a Delaware  corporation  (the
"Licensee").

         WHEREAS Licensee owns and operates Broadcast Stations WSRZ-FM, WZNN-AM,
WMYF-AM and WERZ-FM (collectively referred to herein as the "Stations") pursuant
to a license issued by the Federal Communications Commission ("FCC").

         WHEREAS   Programmer  is  involved  in  radio  Stations  ownership  and
operation.

         WHEREAS the Licensee wishes to retain Programmer to provide programming
for the Stations that is in  conformity  with the Stations' and FCC policies for
time brokerage arrangements and as set forth herein.

         WHEREAS Programmer agrees to use the Stations  exclusively to broadcast
such  programming  of its  selection  that  is in  conformity  with  all  rules,
regulations  and policies of the FCC and subject to Licensee's full authority to
control the operation of the Stations.

         WHEREAS Programmer and Licensee agree to work in a cooperative  fashion
to make their time  brokerage  agreement work to the benefit of both parties and
as contemplated in this Agreement.

         WHEREAS,  Programmer  and Licensee have entered into an Asset  Purchase
Agreement (the "Asset  Purchase  Agreement")  under which Licensee has agreed to
sell the Stations to Programmer,  and have filed an application  for FCC consent
to assign the Stations license from Licensee to
Programmer.

         NOW,  THEREFORE,  in  consideration  of the above  recitals  and mutual
promises and  covenants  contained  herein,  the parties,  intending to be bound
legally, agree as follows:

                                    Section 1
                            Use of Stations Air Time

         1.1  Representations.  Both Licensee and Programmer represent that they
are authorized to enter into this Agreement and that this Agreement  constitutes
the legal,  valid and  binding  obligation  of each,  enforceable  against it in
accordance with its terms.

         1.2 Effective Date; Term. The Effective Date of this Agreement shall be
July 1, 1997.  It shall  continue in force until  December  31,  1997,  or until
consummation  of the  assignment  of  the  Stations  license  from  Licensee  to
Programmer  pursuant to the Asset  Purchase  Agreement,  whichever  event occurs
earlier,  unless  otherwise  extended or  terminated  by the  parties  hereto in
writing.

         1.3 Scope.  During the term hereof,  Licensee  shall make  available to
Programmer time on the Stations as set forth in this Agreement. Programmer shall
deliver  such  programming,   at  its  expense,  to  the  Stations'  transmitter
facilities or other authorized remote control point as reasonably  designated by
Licensee.  Subject  to  Licensee's  reasonable  approval,  as set  forth in this
Agreement,  Programmer shall provide entertainment

<PAGE>

programming  of its selection  complete with  commercial  matter,  news,  public
service  announcements and other suitable  programming to the Licensee up to one
hundred sixty-four (164) hours per week. The Licensee may use the remaining four
hours per broadcast week for the broadcast of its own regularly  scheduled news,
public  affairs  and  other  non-entertainment  programming  and  shall  provide
Programmer with advance  written notice of such hours of  programming.  All time
not  reserved  by or  designated  for  Licensee  shall be  available  for use by
Programmer and no other party.

         1.4  Consideration.  As  consideration  for the air time made available
hereunder, Programmer shall pay to Licensee a monthly fee of Thirty-Two Thousand
Five Hundred Dollars  ($32,500),  payable no later than the fifteenth (15th) day
of the month to which such fee pertains, and Programmer shall reimburse Licensee
for certain Stations expenses as set forth in Section 1.7 hereof.

         1.5  Licensee  Operation  of the  Stations.  Licensee  will  have  full
authority, power and control over the operations of the Stations during the term
of this  Agreement.  Licensee  will bear all  responsibility  for the  Stations'
compliance with all applicable  provisions of the Communications Act of 1934, as
amended, the rules, regulations and policies of the FCC and all other applicable
laws.  Licensee shall be solely  responsible for all  non-capital,  ordinary and
customary  operating  expenses  of the  Stations,  including  but not limited to
maintenance  of the studio and  transmitting  facility and costs of  electricity
except that  Licensee  shall be entitled  to  reimbursement  pursuant to Section
1.7(b) and Programmer  shall be responsible for the costs of its programming and
personnel as provided in Sections 1.7(a) and 2.3 hereof, and shall pay directly,
or  reimburse  Licensee  for,  all other  non-capital,  ordinary  and  customary
operating  expenses  of the  Stations.  Licensee  shall  employ  at its  expense
employees consisting of, at a minimum,  those personnel required pursuant to FCC
regulations,  who will report to and be  accountable  to the Licensee.  Licensee
shall be responsible  for the salaries,  taxes,  insurance and related costs for
all  personnel it employs at the Stations  and shall  maintain  insurance at its
present levels covering the Stations' transmission  facilities.  During the term
of  the  Agreement,  Programmer  agrees  to  perform,  without  charge,  routine
monitoring of Licensee's transmitter  performance and tower lighting if and when
requested by Licensee.

         1.6      Licensee Representations and Warranties.  Licensee represents
and warrants as follows:

         Licensee  holds the  licenses  and  other  permits  and  authorizations
necessary  for the present  operation of the Stations as set forth in Attachment
I. There is not now pending,  or to Licensee's best knowledge,  threatened,  any
action by the FCC or by any other party to revoke,  cancel,  suspend,  refuse to
renew or modify adversely any of such licenses, permits or authorizations except
as  previously  revealed  in  writing  to  Programmer.  To the  Licensee's  best
knowledge,  after due inquiry, Licensee, with respect to the Stations, is not in
material violation of any statute, ordinance, rule, regulation, policy, order or
decree  of any  federal,  state  or local  entity,  court  or  authority  having
jurisdiction over it or the Stations, which would have a material adverse effect
upon the Licensee,  its assets  utilized in the  operation of the Stations,  the
Stations or upon Licensee's  ability to perform this  Agreement.  Licensee shall
not  knowingly  take any  action or omit to take any action  which  would have a
material adverse impact upon the Licensee,  its assets utilized in the operation
of the  Stations,  the  Stations  or upon  Licensee's  ability to  perform  this
Agreement. To Licensee's best

                                       2

<PAGE>

knowledge,  all reports,  annual regulatory fees and applications required to be
filed  with the FCC or any other  governmental  body have  been,  and during the
course of the term of this Agreement or any extension thereof,  will be filed in
a timely and  complete  manner.  The  facilities  of the  Stations  are and will
continue to comply in all material  respects with the  engineering  requirements
set forth in the FCC licenses of the Stations.  Licensee shall,  during the term
of this  Agreement,  not dispose  of,  transfer or assign any of such assets and
properties  except with the prior  written  consent of the  Programmer or in the
ordinary course of the Licensee's business.

         1.7      Programmer Responsibility.

                  (a) Programmer  shall be solely  responsible  for any expenses
incurred  in the  origination  and/or  delivery  of  programming  fro any remote
location and for any publicity or promotional  expenses  incurred by Programmer,
including,  without  limitation,  ASCAP,  BMI,  SESAC music license fees for all
programming provided by Programmer.

                  (b)  Upon   presentation   to  Programmer  by  Licensee  of  a
certificate  outlining in reasonable  detail (with invoices  attached thereto to
the extent such invoices exist) the non-capital, ordinary and customary expenses
incurred  by  Licensee in  operating  the  Stations  including  lease  payments,
utilities,  taxes,  etc.,  Programmer  shall  reimburse  Licensee  for all  such
payments  within  five (5)  business  days  after  presentation  of any and each
certificate of payment.

         1.8 Contracts. Programmer will be required to assume performance of any
of the Contracts (as defined in the Asset Purchase Agreement)  pertaining to the
Stations,  except as indicated on Attachment III hereof.  Programmer  will enter
into no third-party contracts,  leases or agreements which will bind Licensee in
any way except with Licensee's prior written approval.  Licensee will enter into
no third-party contracts, leases or agreements which will bind Programmer in any
way except with Programmer's prior written approval. Programmer shall assume the
obligations of Licensee,  of all existing trade and barter  agreements as listed
on  Attachment  III-A and  Licensee  shall  assign all of its rights under those
trade and barter agreements to Programmer.

         1.9 Hourly Credit.  Programmer shall receive from Licensee, as a refund
consisting of a flat rate credit of $55.00 per hour ("Hourly  Credit"),  for any
part of the weekly one hundred  sixty-four  (164) hours of programming time that
Licensee uses to broadcast its own  programming  including  periods during which
Licensee is unable,  for any reason (except for Programmer's  failure to deliver
its programming to Licensee),  to broadcast the Programmer's  programming.  Such
refunds  to  Programmer  shall be paid  within  ten (10) days of the end of each
month.

         1.10 Stations Operation. Licensee shall notify Programmer in writing at
least five (5)  business  days prior to (i)  making  any  changes in  management
personnel,  (ii)  entering  into any  material  contractual  obligations,  (iii)
purchasing  equipment for a purchase  price in excess of $5,000,  or (iv) making
any other material changes in the operation of the Stations.  Licensee agrees to
purchase  such  equipment  or other  material or services  which are  reasonably
required  for the  Stations'  operations  provided  that  Programmer  agrees  to
reimburse (in accordance  with (1.7) the Licensee for all costs  associated with
such purchases including, without limitation,  installation,  wiring and similar
related costs.

                                        3

<PAGE>

         1.11 Use of Stations  Studios.  Licensee  agrees to provide  Programmer
with  access to the  Stations'  complete  facilities  including  the studios and
broadcast  equipment  for use by  Programmer,  if it so  desires,  in  providing
programming for the Stations;  provided,  however, that Licensee shall maintain,
for its sole use,  sufficient space at the Stations'  studios for its management
level employees. Under the overall supervision of Licensee, Programmer shall and
may  peacefully  and  quietly  have  the full  use of and  enjoy  the use of the
Stations'  facilities,  studios and equipment  free from any material  hindrance
from any person or persons  whomsoever  claiming by, through or under  Licensee.
Programmer shall use the studios and equipment only for the purpose of producing
programming for the Stations or for any other  Stationss owned or  time-brokered
by the  Programmer  within the same  market and shall at all times be subject to
the good faith oversight of the Licensee.

                                    Section 2

                Stations Obligations to the Community of License

         2.1 Licensee  Authority.  Notwithstanding  any other  provision of this
Agreement,  Programmer  recognizes  that  Licensee  has certain  obligations  to
broadcast  programming  to meet the  needs and  interests  of the  community  of
license for the  Stations.  On a regular  weekly  basis the  Licensee  shall air
specific programming on issues of importance to the local community.  Nothing in
this  Agreement  shall  abrogate the  unrestricted  authority of the Licensee to
discharge its  obligations  to the public and to comply with the law,  rules and
policies of the FCC with respect to meeting the ascertained  needs and interests
of the public.

         2.2  Additional  Licensee  Obligations.  Although  both  parties  shall
cooperate in the broadcast of emergency information over the Stations,  Licensee
shall also retain the right to interrupt Programmer's  programming in case of an
emergency or for  programming  which,  in the reasonable  good faith judgment of
Licensee,  is of  overriding  public  importance.  Such  interruption  shall not
entitle  Programmer to any credits on fees.  Licensee shall also coordinate with
Programmer the Stations'  hourly  Stations  identification  announcements  to be
aired in accord  with FCC rules.  Licensee  shall  continue  to  maintain a main
studio,  as that term is defined  by the FCC,  within  the  Stations'  principal
community  contour,  shall maintain its local public  inspection file within the
community  of license and shall  prepare and place in such  inspection  file its
quarterly  issues and program lists on a timely basis.  Programmer  shall,  upon
request by Licensee,  provide  Licensee with information with respect to certain
of Programmer's programs which should be included in Licensee's quarterly issues
and programs lists.  Licensee shall also maintain the Stations logs, receive and
respond to the telephone inquiries, control and oversee any remote control point
for the Stations.

         2.3 Responsibility for Employees and Expenses.  Programmer shall employ
and be solely responsible for the salaries,  taxes,  insurance and related costs
for  all  personnel  employed  by  Programmer  (including,  without  limitation,
salespeople, traffic personnel, board operators and programming staff). Licensee
will provide and be responsible for the Stations  personnel employed by Licensee
and  necessary  to  fulfill  Licensee's  obligations  hereunder,   and  will  be
responsible  for the  salaries,  taxes,  insurance and related costs for all the
personnel it employs.  All personnel shall be subject to the overall supervision
of  Licensee,  consistent  with  Programmer's  right to the use of the  Stations
facilities pursuant to Section 1.12 hereof.

                                       4

<PAGE>

                                    Section 3
                          Stations Programming Policies

         3.1  Broadcast  Stations  Programming  Policy  Statement.  Licensee has
adopted and will enforce a Broadcast Stations  Programming Policy Statement (the
"Policy  Statement"),  a copy of which appears as Attachment IV hereto and which
may be  amended  from  time to time  by  Licensee  upon  notice  to  Programmer.
Programmer  agrees and  covenants  to comply in all material  respects  with the
Policy  Statement,  with all  rules  and  regulations  of the FCC,  and with all
reasonable  changes  subsequently  made by  Licensee  or the  FCC.  If  Licensee
reasonably determines that a program supplied by Programmer does not comply with
the Policy  Statement  it may suspend or cancel such  program and shall  provide
written notice to Programmer of such decision. Programmer shall furnish or cause
to be furnished the Artistic personnel and material for the programs as provided
by this  Agreement  and all  programs  shall be in  accordance  with the  Policy
Statement and FCC requirements.  All advertising spots and promotional  material
or  announcements  shall  comply  with  applicable  federal,   state  and  local
regulations  and  policies,  the  Policy  Statement,  and shall be  produced  in
accordance with quality standards established by Programmer.

         3.2 Licensee  Control of  Programming.  Programmer  recognizes that the
Licensee  has full  authority  to control the  operation  of the  Stations.  The
parties agree that Licensee's authority includes but is not limited to the right
to reject or refuse such portions of the Programmer's programming which Licensee
reasonably  believes to be unsatisfactory,  unsuitable or contrary to the public
interest.  Programmer  shall have the right to change the  programming  elements
and/or  format of the  programming  supplied to  Licensee by giving  Licensee at
least forty-eight (48) hours notice of such changes.

         3.3 Programmer Compliance with Copyright Act. Programmer represents and
warrants to  Licensee  that  Programmer  has full  authority  to  broadcast  its
programming  on the  Stations,  and that  Programmer  shall  not  broadcast  any
material in violation of any law,  rule,  regulation or the  Copyright  Act. All
music supplied by Programmer shall be: (i) licensed by ASCAP, SESAC or BMI; (ii)
in the public domain;  or (iii) cleared at the source by Programmer.  Consistent
with Section 1.7 hereof, Licensee will maintain ASCAP, BMI and SESAC licenses as
necessary.  The right to use the  programming  and to  authorize  its use in any
manner shall be and remain vested in Programmer.

         3.4      Sales.

                  (a)  Programmer  shall  retain all  revenues  from the sale of
         advertising  time within the  programming  it provides to the Licensee.
         Programmer may sell  advertising,  consistent  with  applicable  rules,
         regulations  and the Policy  Statement,  on the Stations in combination
         with any other broadcast Stations of its choosing.  Programmer shall be
         responsible  for payment of the  commissions due to any sales (national
         or otherwise)  representative  engaged by it for the purpose of selling
         advertising  (national  or  otherwise)  which  is  carried  during  the
         programming it provides to Licensee. Licensee shall retain all revenues
         from the sale of  Stations'  advertising  during the hours each week in
         which the Licensee airs its own non-entertainment programming, with the
         exception  provided for certain  political  advertising as set forth in
         Section 5.2 herein.

                                       5
<PAGE>

                  (b)  Programmer  acknowledges  that  all  accounts  receivable
         arising in connection with the operation of the Stations, including but
         not  limited  to  accounts  receivable  for  advertising  revenues  for
         programs  and  announcements  performed  at the  tations  prior  to the
         Effective Date and other broadcast  revenues for services  performed at
         the Stations  prior to the Effective  Date shall remain the property of
         Licensor and that,  except as provided for below,  Programmer shall not
         acquire  any  beneficial  right or interest  therein or  responsibility
         therefor.

                  (c) Programmer is hereby  designated as agent for Licensor for
         the  purposes  of  billing,   if  unbilled,   and  collecting  accounts
         receivable of the Stations existing on or before the Effective Date and
         arising  out of  the  operations  of  the  Stations  on or  before  the
         Effective Date,  togerther with  advertising  broadcast by the Stations
         prior to the  Effective  Date and not yet  billed to  advertisers,  and
         Programmer  shall  account  for all monies  attributable  to all of the
         Stations'  accounts  receivable  collected.  On the  last  day of  each
         calendar month  following the Effective Date,  Programmer  shall render
         and  deliver to  Licensor  any  monies  collected  with  respect to the
         Stations' accounts receivable,  its written account of such billing and
         collection efforts, together with copies of such bills, correspondence,
         documents,  instruments,  and such other  information  as the  Licensor
         shall reasonably  request. On the day which is one hundred eighty (180)
         days after the  Effective  Date,  or if such day is not a business day,
         the next preceding business day,  Programmers shall deliver to Licensor
         one  hundred  percent  (100%)  of  all  monies  actually  collected  by
         Programmer   on   Licensor's   behalf   and   any   additional   bills,
         correspondance,  documents,  instruments,  files and other
         information  concerning  the billing of the accounts  receivable of the
         Stations  to which  such  monies  relate  and  which  have not yet been
         delivered  to Licensor.  Notwithstanding  the  foregoing,  Licensor and
         Programmer hereby agree that Programmer shall in no way be obligated to
         pay Licensor any amounts received by Programmer as payments on accoutns
         receivable  which arise after the Effective  Date (the  "Post-Effective
         Date Accounts Receivable").

                  (d)  Programmer  shall  receive no  remuneration  for services
         rendered  pursuant  to this  Section 3.4 and shall not be liable in any
         way for  non-collection  or failure of any such  collection of accounts
         receivable ( except for liability  arising in connection with the gross
         negligence or willful  misconduct of the Programmer in connection  with
         such accounts  receivable.).  On or before the Effective Date, Licensor
         shall deliver  Programmer a list of the Stations'  accounts  receivable
         existing  on or before  the  Effective  Date,  as well as its  unbilled
         broadcast  advertising,  existing as of the Effective  Date, as well as
         its unbilled broadcast  advertising,  existing as of the Effective Date
         ("Pre-Effective  Date  Accounts  Receivable")  which  shall be attached
         hereto as Schedule  3.4. Any cash received by Programmer as payments on
         such  accounts  receivable  after the  Effective  Date  from  customers
         included in the Pre-Effective Date Accounts  Receivable will be applied
         first  to   Pre-Effective   Date  Accounts   Receivable   and  then  to
         Post-Effective  Date Accounts  Receivable.  If a customer,  in writing,
         disputes  all  or  any  portion  of  the  Pre-Effective   Date  Account
         Receivable,   Programmer   may   credit   any  cash   payment   to  the
         Post-Effective  Date Account  Receivable  from the same  customer.  The
         disputed  Pre-Effective Date Accounts  Receivable shall be

                                       6

<PAGE>

         returned for Licensor for it to collect. Any Pre-Effective Date Account
         Receivable which is outstanding one hundred eighty (180) days after the
         Effective  Date shall be  returned  to Licensor on such one hundred and
         eightieth (180th) day for it to collect.  The obligations of Programmer
         under this  Section  3.4(d)  shall  survivor  the  termination  of this
         Agreement.

                  (e)  Programmer  and  Licensor   hereby  agree  that  (i)  the
         provisions  of the  (3.4  apply  only  to  accounts  receivable  of the
         Licensor  arising in connection  with the operations of the Stations on
         or before the  Effective  Date and (ii)  nothing set forth herein shall
         affect  or refer to in any way any  other  accounts  receivable  of the
         Licensor.

         3.5   Payola.   Programmer   agrees   that  it  will  not   accept  any
consideration, compensation, gift or gratuity of any kind whatsoever, regardless
of its value or form,  including,  but not limited to, a  commission,  discount,
bonus, material, supplies or other merchandise,  services or labor (collectively
"Consideration"),  whether or not pursuant to written  contracts  or  agreements
between Programmer and merchants or advertisers,  unless the payer is identified
in the  program  for which  Consideration  was  provided  as having  paid for or
furnished such Consideration,  in accordance with the Communications Act and FCC
requirements.  Programmer agrees to quarterly, or more frequently at the request
of  the  Licensee,  execute  and  provide  Licensee  with  a  Payola  Affidavit,
substantially in the form attached hereto as Attachment V.

         3.6      Staffing Requirements.  Licensee shall comply with the main
studio staff requirements as specified by the FCC.

                                    Section 4
                                 Indemnification

         4.1 Programmer's  Indemnification.  Programmer shall indemnify and hold
harmless  Licensee  from  and  against  any  and  all  claims,   losses,  costs,
liabilities,  damages, FCC forfeitures and expenses (including  reasonable legal
fees  and  other  expenses   incidental  thereto)  of  every  kind,  nature  and
description,  including  but not limited to,  slander or defamation or otherwise
arising out of Programmer's  broadcasts and sale of advertising  time under this
Agreement to the extent permitted by law.

         4.2  Licensee's  Indemnification.  Licensee  shall  indemnify  and hold
harmless  Programmer  from  and  against  any and  all  claims,  losses,  costs,
liabilities,  damages,  and expenses (including  reasonable legal fees and other
expenses incidental thereto) of every kind, nature and description,  arising out
of Licensee' broadcasts to the extent permitted by law.

         4.3      Limitation.  Neither Licensee nor Programmer shall be entitled
to   indemnification   pursuant   to  this   section   unless   such  claim  for
indemnification is asserted in writing delivered to the other party.

         4.4 Time  Brokerage  Challenge.  If this Agreement is challenged at the
FCC,   whether  or  not  in  connection  with  the  Stations'   license  renewal
application,  counsel for the Licensee and counsel for the Programmer  shall, at
the sole control and expense of the Programmer, jointly defend the Agreement and
the parties' performance  thereunder  throughout all FCC proceedings at the sole
expense of the  Programmer.  If  portions of this  Agreement  do not receive the
approval of the FCC staff,  then the parties  shall reform the

                                       7

<PAGE>


Agreement  or, at  Programmer's  option and expense,  seek reversal of the staff
decision and approval from the full Commission on appeal.

                                    Section 5
                Access to Programmer Materials and Correspondence

         5.1  Confidential  Review.  At least two (2) business days prior to the
provision of any  programming  by Programmer to Licensee  under this  Agreement,
Programmer  shall  acquaint  the  Licensee  with  the  nature  and  type  of the
programming  to be  provided.  Licensee,  solely  for the  purpose  of  ensuring
Programmer's  compliance  with the law,  FCC rules and the  Stations'  policies,
shall  be  entitled  to  review  at  its  discretion  from  time  to  time  on a
confidential  basis  any  programming   material  it  may  reasonably   request.
Programmer shall promptly provide Licensee with copies of all correspondence and
complaints  received from the public (including any telephone logs of complaints
called  in),  copies of all program  logs and  promotional  materials.  However,
nothing in this section shall entitle Licensee to review the internal  corporate
or financial records of the Programmer.

         5.2 Political Advertising.  Programmer shall cooperate with Licensee to
assist  Licensee  in  complying  with all rules of the FCC  regarding  political
advertising.  Programmer shall supply such  information  promptly to Licensee as
may be necessary to comply with the lowest unit rate,  equal  opportunities  and
reasonable  access  requirements  of federal  law. In the event that  Programmer
fails to meet its political time  obligations  under the  Communications  Act of
1934,  as amended,  and the rules and  regulations  of the FCC and such  failure
inhibits Licensee in the performance of its political time obligations,  then to
the extent reasonably necessary to assure the Licensee's performance, Programmer
shall release advertising  availabilities to Licensee;  provided,  however, that
all revenues  realized by Licensee as a result of such a release of  advertising
time shall be immediately paid to Programmer.

                                    Section 6
                      Termination and Remedies Upon Default

         6.1  Termination.  In addition to other  remedies  available  at law or
equity  and  the  provisions  of  Section  1.2  hereof,  this  Agreement  may be
terminated as set forth below by either Licensee or Programmer by written notice
to the other if the party  seeking to terminate is not then in material  default
or breach hereof, upon the occurrence of any of the following:

                  (a) this Agreement is declared  invalid or illegal in whole or
substantial part by an order or decree of an  administrative  agency or court of
competent  jurisdiction  and such order or decree has become final and no longer
subject to further administrative or judicial review;

                  (b) the other party is in material  breach of its  obligations
hereunder  and has failed to cure such breach  within thirty (30) days of notice
from the non-breaching party;

                  (c)  the mutual consent of both parties;

                  (d) there has been a material change in FCC rules, policies or
precedent  that would cause this  Agreement to be in violation  thereof and such
change is in effect and not the  subject of an appeal or further  administrative
review;

                                      8


<PAGE>

                  (e)      the Asset Purchase Agreement is terminated in
accordance with its terms; or

                  (f)      in accordance with (6.2 hereof

         6.2      Programmer's Remedies for Operational Deficiencies.
Programmer  shall have the  following  remedies  for  deficiencies  in or events
related to Licensee's transmitting facility:

                  (a) If Programmer  receives  during the first thirty (30) days
of this Agreement a report of a consulting engineer, chosen by Programmer, which
concludes that the Stations is not operating substantially within the parameters
authorized  by the FCC or that the  Stations'  actual  coverage of the market is
materially  less than it should  be,  Licensee  may  either  (i)  terminate  the
Agreement or (ii) at its expense, take such steps as are reasonably necessary to
restore the effective coverage or operating  parameters of the relevant Stations
or demonstrate,  by the use of the report of another consulting engineer,  hired
at its expense,  that the coverage or operating  parameters  are not  materially
deficient.  If the Stations' effective coverage or operating  parameters are not
restored  within  thirty  (30)  days of  notice  of the  coverage  or  operating
deficiencies,  then  Programmer  shall be entitled to a full refund,  on a daily
basis,  of the  Hourly  Credit  amount  set  forth in  Section  1.9  until  such
deficiencies  are corrected or the date of the  termination of this Agreement by
the  Licensee,  whichever is earlier,  and such refunds shall be made within ten
(10) days of the end of the month.

                  (b) If for a period of five  consecutive days or more Licensee
reduces its  transmitter  output power on the Stations by fifty percent (50%) or
more,  Programmer  may  elect a refund  equal to one half of the  Hourly  Credit
amount set forth in Section 1.9 for so long as such power reduction continues to
occur if  Programmer  has, in fact,  been  required to ake rebates  and/or other
financial  accommodations  to its advertisers and such refund shall be reflected
in a refund payment by Licensee to Programmer within ten (10) days of the end of
the month.

                  (c) If Licensee uses an auxiliary or alternate transmitter for
the Stations for a period of five (5) consecutive  days or more, then the refund
for such period shall be  twenty-five  percent (25%) of the Hourly Credit amount
set forth in Section 1.9 for so long as such auxiliary or alternate  transmitter
site is in use if Programmer  has, in fact, been required to make rebates and/or
other financial accommodations to its advertisers.  Should such transmitter site
move  continue for more than thirty (30) days,  the refund for such period shall
be equal to fifty percent (50%) of the Hourly Credit amount set forth in Section
1.9 for so long as such alternate  transmitter  site is in use. The refund shall
be reflected in a refund payment by Licensee to Programmer  within ten (10) days
of the end of the month.

                  (d) If, due to damage to or failure of transmission equipment,
the Stations is off the air for five (5) consecutive  days or for a total of one
hundred twenty (120) hours during any thirty (30) day period,  Programmer  shall
be entitled to a full refund,  on a daily basis, of the Hourly Credit amount set
forth in Section 1.9 and such  refund  shall be made within ten (10) days of the
end of the month.

         6.3  Force  Majeure.   Any  failure  or  impairment  of  the  Stations'
facilities or any delay or interruption in the broadcast of programs, or failure
at any time to furnish  facilities,  in whole or in part, for broadcast,  due to
acts  of  god,  strikes,  lockouts,   material  or  labor  restrictions  by  any
governmental  authority,  civil riot,  floods and any other cause not reasonably
within the control of Licensee will not be liable to Programmer, except to the

                                      9

<PAGE>


extent of allowing in each such case an appropriate refund for time not provided
based upon the Hourly  Credit set forth under  Section 1.9  calculated  upon the
length of time during which the failure or impairment exists or continues.

         6.4 Other Agreements.  During the term of this Agreement, Licensee will
not enter into any other time brokerage,  program provision, local management or
similar agreement with any third party with respect to the Stations.

                                    Section 7
                                  Miscellaneous

         7.1 Assignment.  This Agreement shall be binding upon and insure to the
benefit  of the  parties  hereto,  their  successors  and  assignees,  including
specifically  any  purchaser of the Stations  from  Licensee.  Neither party may
assign its rights under this Agreement  without the prior written consent of the
other party which shall not be  unreasonable  withheld,  provided,  however that
Programmer has the absolute right to assign this Agreement and all of its rights
and  obligations  hereunder,  following  written  notice to the Licensee,  to an
entity  controlled by American Radio Systems  Corporation  (but only if American
Radio Systems Corporation  continues to remain liable for all of the obligations
of such  assignee  hereunder)  and Licensee has the right to assign its payments
hereunder to its Lenders upon written notification to Programmer.

         7.2 Call  Letters.  Upon  request  of  Programmer  and at  Programmer's
expense,  Licensee  shall  apply to the FCC for  authority  to  change  the call
letters of the Stations  (with the consent of the FCC) to such call letters that
Programmer shall reasonably designate.  Licensee shall cooperate with Programmer
and receive  Programmer's consent prior to making any change in the call letters
of the Stations.

         7.3  Counterparts.  This  Agreement  may be  executed  in  one or  more
counterparts, each of which will be deemed an original but all of which together
will constitute one and the same instrument.

         7.4 FCC  Certification  (47 C.F.R. ss. 73.3555(a) (2) (ii). The parties
shall execute a Certification  in the form of Attachment VI hereto,  as required
by Section 73.3555(a) (2) (ii) of the FCC's rules.

         7.5 Entire Agreement. This Agreement and the Attachments hereto and the
Asset  Purchase  Agreement  between  Programmer  and Licensee  embody the entire
agreement  and  understanding  of the  parties and  supersede  any and all prior
agreements,  arrangements  and  understandings  relating to matters provided for
herein.  No  amendment,  waiver of  compliance  with any  provision or condition
hereof, or consent pursuant to this Agreement will be effective unless evidenced
by an instrument in writing signed by the parties.

         7.6 Taxes.  Licensee and  Programmer  shall each pay its own ad valorem
taxes,  if any,  which  may be  assessed  on such  party's  respective  personal
property  for the periods  that such items are owned by such  party.  Programmer
shall pay all taxes if any, to which the consideration  specified in Section 1.4
herein is subject,  provided that Licensee is responsible for payment of its own
income  taxes.  Each party  shall be  responsible  for any sales tax  imposed on
advertising aired during the programming provided by that party.

         7.7      Headings.  The headings are for convenience only and will not
control or affect the meaning or construction of the provisions of this
Agreement.

                                       10


<PAGE>

         7.8  Governing  Law. The  obligations  of Licensee and  Programmer  are
subject  to  applicable  federal,  state and local law,  rules and  regulations,
including,  but not limited to, the Communications Act of 1934, as amended,  and
the Rules and  Regulations of the FCC. The  construction  and performance of the
Agreement will be governed by the laws of the Commonwealth of Massachusetts.

         7.9 Notices. Any notice,  demand or request required or permitted to be
given under the  provisions  of the  Agreement  shall be in writing and shall be
deemed to have been duly  delivered  on the date of personal  delivery or on the
date of receipt if mailed by registered or certified  mail,  postage prepaid and
return receipt requested,  and shall be deemed to have been received on the date
of  personal  delivery  or on the date set forth on the return  receipt,  to the
following  addresses,  or to such other address as any party may request, in the
case of Licensee,  by notifying  Programmer,  and in the case of Programmer,  by
notifying Licensee.

To Licensee:      Precision Media Corporation
                  36 Bay State Road
                  Cambridge, MA
                  Attn: Donald F. Law, President

To Programmer:    American Radio Systems Corporation
                  116 Huntington Avenue
                  Boston, MA  02116
                  Attn: Steven B. Dodge, President
                  Fax: (617) 375-7575

Copies To:        American Radio Systems Corporation
                  116 Huntington Avenue
                  Boston, MA  02116
                  Attn:  Michael B. Milsom, Esq.
                  Fax:  (617) 375-7550

                  Dow, Lohnes and Albertson
                  1200 New Hampshire Ave., N.W.
                  Suite 800
                  Washington, DC  20036
                  John R. Feore, Jr. Esq.
                  Fax:  (202) 776-2222

         7.10   Severability.   If  any  provision  of  this  Agreement  or  the
application  thereof  to  any  person  or  circumstances  shall  be  invalid  or
unenforceable to any extent, the remainder of this Agreement and the application
of such  provision  to other  persons  or  circumstances  shall not be  affected
thereby and shall be enforced to the greatest extent permitted by law.

         7.11 Public Announcements. The parties will coordinate and consult with
one  another  before  making  any press  release  or other  public  announcement
concerning  the  transaction  contemplated  under  this  Agreement.   Programmer
acknowledges that announcements and direct or indirect communications concerning
any changes which  Programmer may plan for the future  operation of the Stations
prior to the  Effective  Date may have a  deleterious  effect  on the  business,
operation, and reputation of the Stations and Licensee. Accordingly,  Programmer
agrees that neither it nor its employees,  representatives  or agents shall make
any formal or information  announcements to or communication  with any employees
of the Stations or to any person with whom the Stations  does  business  without
written approval of Licensee.  Programmer further agrees that neither it nor its
employees will release or publicize any such planes changes within the community
of license or service area or  operations  of the  Stations  without the written
approval of Licensee, which shall not be unreasonably with held, and which shall
be granted if necessary or appropriate to comply with the rules,  regulations or
policies of the FCC.

                                       11

<PAGE>

         IN WITNESS WHEREOF, the parties hereto have executed this Agreement the
day and year first above written.



                                            LICENSEE:
                                            PRECISION MEDIA CORPORATION



                                            By:  ______________________________


                                            PROGRAMMER:
                                            AMERICAN RADIO SYSTEMS CORPORATION



                                            By:   _____________________________




                                      12




<PAGE>






                                  ATTACHMENT I

                                Stations Coverage

         WMYF(AM) and WERZ(FM), Exeter, New Hampshire and WZNN(AM) and WSRI(FM),
Rochester,  New Hampshire current FCC Licenses and contour maps on file with the
FCC.

                                      




<PAGE>






                                  ATTACHMENT II

                                Stations Expenses

The following  expenses  relating to the operation of the Stations shall be paid
by the Licensee:

         a)       Salary,  payroll  taxes,  benefits and other costs relating to
                  the employment of the Stations' [_____________].

         b)       Salary,  payroll taxes  benefits,  and other costs relating to
                  the employment of the Stations' [_________________].

         c)       Cost of tower rent  electricity and other  utilities  directly
                  related  to  the  operation  of  the   Stations'   transmitter
                  facilities.




                                       




<PAGE>












                                  ATTACHMENT IV


                Broadcast Stations Programming Policy Statement

                                      




<PAGE>





                               BROADCAST STATIONS
                          PROGRAMMING POLICY STATEMENT


         Programmer  agrees to cooperate  with Licensee in the  broadcasting  of
programs of the highest possible  standard of excellence and for this purpose to
observe the following  regulations in the preparation,  writing and broadcasting
of its programs.

         I.       No Plugola or Payola.  The mention of any business activity or
                  "plug"  for any  commercial,  professional,  or other  related
                  endeavor,  except  where  contained  in an  actual  commercial
                  message of a sponsor, is prohibited.

         II.      No  Lotteries.  Announcements  giving  any  information  about
                  lotteries  or games  prohibited  by  federal  or state  law or
                  regulation are prohibited.

         III.     Election  Procedures.  At least  ninety  (90) days  before the
                  start of any primary or  election  campaign,  Programmer  will
                  clear with Licensee's general manager the rate Programmer will
                  charge  for the time to be sold to  candidates  for the public
                  office  and/or their  supporters to make certain that the rate
                  charged is in conformance with the applicable law and Stations
                  policy.

         IV.      Required  Announcements.  Progammer  shall  broadcast  (I)  an
                  announcement  in  a  form  satisfactory  to  Licensee  at  the
                  beginning  of each  hour to  identify  the  Stations,  (ii) an
                  announcement  at the  beginning  and  end of each  program  to
                  indicate that program time has been  purchased by  Programmer,
                  and (iii) any other announcements that may be required by law,
                  regulation, or Stations policy.

         V.       Commercial  Recordkeeping.  Programmer  shall not  receive any
                  consideration  in  money,  goods,   services,   or  otherwise,
                  directly  or  indirectly  (including  to  relatives)  from any
                  persons or company  for the  presentation  of any  programming
                  over the Stations without reporting the same in advance to and
                  receiving  the prior  written  consent of  Licensee's  general
                  manager.  No commercial messages ("plugs") or undue references
                  shall be made in  programming  presented  over Stations to any
                  business  venture,  profit making activity,  or other interest
                  (other  than   noncommercial   announcements   for  bona  fide
                  charities,   church   activities   or  other  public   service
                  activities)  in which  Programmer (or anyone else) is directly
                  or indirectly interested without the same having been approved
                  in  advance by the  general  manager/chief  engineer  and such
                  broadcast being announced and logged and sponsored.

         VI.      No  Illegal   Announcements   No  announcements  or  promotion
                  prohibited

                                      




<PAGE>



                  by federal or state law or  regulation  of any lottery or game
                  shall  be made  over  the  Stations.  Any  game,  contest,  or
                  promotion  relating to or to be  presented  over the  Stations
                  must be fully  stated and  explained  in advance to  Licensee,
                  which reserves the right in its sole  discretion to reject any
                  game, contest, or promotion.

         VII.     Licensee   Discretion   Paramount  In   accordance   with  the
                  Licensee's  responsibility  under  the  Communications  Act of
                  1934, as amended, and the Rules and Regulations of the Federal
                  Commissions,   Licensee   reserves  the  right  to  reject  or
                  terminate  any  advertising  proposed to be presented or being
                  presented   over  the  Stations  which  is  in  conflict  with
                  Licensee's  policy  or  which  in  Licensee's  or its  general
                  manager/chief  engineer's  sole  judgment  would not serve the
                  public interest.


         Licensee  may  waive  any  of the  foregoing  regulations  in  specific
instances,  if, in its  opinion,  good  broadcasting  in the public  interest is
served.

         In  any  case  where  questions  of  policy  or  interpretation  arise,
Programmer  should  submit the same to Licensee for decision  before  making any
commitments in connection therewith.




                                        2




<PAGE>










                                  ATTACHMENT V


                                Payola Statement


                                 




<PAGE>





                            FORM OF PAYOLA AFFIDAVIT


City of ____________________  )

County of __________________  ) ss.

State of  ___________________ )

                          ANTI-PAYOLA/PLUGOLA AFFIDAVIT


___________________________, being first duly sworn, deposes and says as
follows:

1.       He is _________________________  for  ________________________________.
                        (Position)

2.       He has acted in the above capacity since _____________.

3.       No matter has been broadcast by Stations  __________ for which service,
         money or other valuable  consideration  has been directly or indirectly
         paid, or promised to, or charged, or accepted,  by him from any person,
         which  matter  at the  time so  broadcast  has not  been  announced  or
         otherwise indicated as paid for or furnished by such person.

4.       So far as he is aware, no matter has been broadcast by Stations _______
         for which  service,  money,  or other valuable  consideration  has been
         directly or indirectly paid, or promised to, or charged, or accepted by
         Stations _______ in furnishing programs,  from any person, which matter
         at the time so broadcast has not been announced or otherwise  indicated
         as paid for or furnished by such person.

5.       In future,  he will not pay,  promise to pay,  request,  or receive any
         service,  money,  or  any  other  valuable  consideration,   direct  or
         indirect,  from a third party,  in exchange for the  influencing of, or
         the attempt to influence,  the preparation of presentation or broadcast
         matter on Stations ________.

6.       Nothing  contained  herein is intended to, or shall prohibit receipt or
         acceptance of anything with the expressed  knowledge and approval of my
         employer,  but henceforth any such approval must be given in writing by
         someone expressly authorized to give such approval.


                                  




<PAGE>




7.       He,  his spouse and his  immediate  family  do____ do not ____ have any
         present  direct  or  indirect  ownership  interest  in  (other  than an
         investment in a corporation whose stock is publicly held),  serve as an
         officer or director of, whether with or without compensation,  or serve
         as an employee of, any person, firm or corporation engaged in:

         1.       The publishing of music;

         2.       The production,  distribution  (including wholesale and retail
                  sales outlets),  manufacture or exploitation of music,  films,
                  tapes, recordings or electrical  transcriptions of any program
                  material intended for radio broadcast use;

         3.       The   exploitation,   promotion,   or  management  of  persons
                  rendering  artistic,  production  and/or other services in the
                  entertainment field;

         4.       The  ownership or operation of one or more radio or television
                  Stationss;

         5.       The  wholesale  or retail sale of records  intended for public
                  purchase;

         6.       Advertising on Stations ______, or any other Stations owned by
                  its  licensee  (excluding  nominal  stockholdings  in publicly
                  owned companies).

8.       The facts and circumstances  relating to such interest are none _______
         as follows________:

         _________________________________________________________________

         _________________________________________________________________

         _________________________________________________________________


                                            __________________________________
                                                          Affiant

Subscribed and sworn to before me 
this ______ day of ________________, 199___.


__________________________________________
Notary Public

My Commission expires:  __________________


                                       2




<PAGE>










                                  ATTACHMENT VI


                                FCC Certification




                                    




<PAGE>







                                  CERTIFICATION


         Pursuant to Section 73.3555(a) (2) (ii) of the FCC's Rules:


1.       The licensee of the brokered  Stationss  affected by the foregoing Time
         Brokerage Agreement hereby certifies that it will at all times maintain
         ultimate  control  (as defined in FCC rules and  regulations)  over the
         Stations' facilities, including specifically control over the Stations'
         finances, personnel and programming; and

2.       The  licensee of the  brokering  Stationss  hereby  certifies  that the
         proposed  Agreement for the time brokerage complies with the provisions
         of Section 73.3555(a) (2) (ii) of the FCC's rules.

                  Dated this ________ day of _____________________, 199______.


                  LICENSEE:



                                            By:  ______________________________
                                            Its:  _____________________________


                  PROGRAMMER: AMERICAN RADIO SYSTEMS CORPORATION


                                            By:  ______________________________
                                            Its:  _____________________________





                                                                    Exhibit 10.7



                            ASSET PURCHASE AGREEMENT

         This ASSET  PURCHASE  AGREEMENT  is dated June 6, 1997,  by and between
American  Radio  Systems  Corporation,  a Delaware  corporation  ("Buyer"),  and
Michael A. McMurray and Marilyn A. McMurray, d/b/a McMurray  Communications,  an
Ohio general Partnership ("Seller").

                                P R E M I S E S:

         A.  Seller is the  permittee/licensee  of and  operates  radio  station
WMMA(FM)  Lebanon,  Ohio (the  "Station")  pursuant  to  licenses  issued by the
Federal Communications Commission (the "FCC").

         B. Seller desires to sell, and Buyer wishes to buy,  substantially  all
of  Seller's  assets  used or useful in the  operation  of the  Station  and the
broadcast  business  made  possible  thereby  for the price and on the terms and
conditions hereafter set forth. AGREEMENTS:

         In consideration of the above premises and the covenants and agreements
contained herein, Buyer and Seller agree as follows:

                                    Section 1

                                  DEFINED TERMS

         The  following  terms  shall  have  the  following   meanings  in  this
Agreement:

         1.1  "Accounts  Receivable"  means the rights of Seller to payment  for
services rendered  (including sale of time or talent on the Station for cash) by


                                      


<PAGE>


Seller prior to the Closing  Date as reflected on the billing  records of Seller
relating to the Station.

         1.2 "Assets" means the tangible and intangible assets owned and used in
connection with the conduct of the business or operations of the Station,  being
such assets as are specifically set forth in Section 2.1 herein, which are being
sold,  transferred,  or otherwise  conveyed to Buyer hereunder,  as specified in
detail in Section 2.1.

         1.3 "Assumed Contracts" means (i) all Contracts listed in Schedule 3.7,
(ii) any  Contracts  entered into by Seller in the  ordinary  course of business
between  the date  hereof and the  Closing  Date which would have been listed on
Schedule  3.7 had they been in  existence  on the date  hereof  and which  Buyer
agrees  in  writing  to  assume,  (iii)  all  Contracts,  except  employment  or
employee-related  contracts,  in  existence  on the Closing  Date which meet the
criteria set forth in Section 3.7 (i) - (iii) for  exclusion  from Schedule 3.7,
and (iv) all Contracts  with  advertisers  for the sale of time or talent on the
Station for cash entered into in the ordinary course of business.

         1.4 "Closing" means the consummation of the transaction contemplated by
this Agreement in accordance with the provisions of Section 8.

         1.5 "Closing  Date" means the date of the Closing  specified in Section
8.1.

         1.6      "Consents" means all of the consents, permits or approvals of
government  authorities and other third parties necessary to transfer the Assets
to Buyer  or  otherwise  to  consummate  the  transaction  contemplated  hereby,
including  without  limitation  the  consents of the parties to those  Contracts
designated in Schedule 3.7 with an asterisk.

         1.7  "Contracts"  means all  agreements  and  leases,  written  or oral
(including any amendments and other modifications  thereto) to which Seller is a
party or which are binding  upon Seller and affect the assets or the business or
operations  of the Station,  and (i) which are in effect on the date hereof,  or
(ii) which are entered into by


                                        2


<PAGE>



Seller in the  ordinary  course of  business  between  the date  hereto  and the
Closing Date.

         1.8 "Escrow Deposit" shall mean the sum of Two Hundred and Ten Thousand
Dollars  ($210,000) held by Media Venture Partners.  as Escrow Agent pursuant to
an Escrow Agreement of even date, by and among Buyer,  Seller,  and Escrow Agent
in the form set forth in Schedule 1.8 hereto.

         1.9 "Excluded Assets" shall mean those assets described or set forth in
Section 2.2 herein,  in  addition  to any assets not  specifically  set forth in
Section 2.1 herein.

         1.10 "FCC Consent"  means action by the FCC granting its consent to the
assignment of the FCC Licenses to Buyer as contemplated by this Agreement.

         1.11  "FCC  Licenses"  means  all of the  licenses,  permits  and other
authorizations issued by the FCC to Seller in connection with the conduct of the
business or operations of the Station.

         1.12  "Final  Order"  means a written  action,  order or public  notice
issued  by the FCC,  setting  forth the FCC  Consent  and (a) which has not been
reversed,  stayed,  enjoined,  set aside,  annulled or  suspended,  and (b) with
respect to which (i) no requests have been filed for  administrative or judicial
review,  reconsideration,  appeal  or stay,  and the time  for  filing  any such
requests and for the FCC to review the action on its own motion has expired,  or
(ii) in the event of review,  reconsideration  or appeal that does not result in
the FCC  consent  being  reversed,  stayed,  enjoined,  set aside,  annulled  or
suspended, the time for further review, reconsideration or appeal has expired.

         1.13  "Licenses"   means  all  of  the  licenses,   permits  and  other
authorizations,  including  the FCC  Licenses,  issued by the FCC, and any other
federal,  state or local  governmental  authorities to Seller in connection with
the conduct of the business or operations of the Station.


                                        3


<PAGE>




         1.14 "Personal Property" means all of the machinery,  equipment, tools,
vehicles,  furniture,  leasehold  improvements,  office equipment,  plant, spare
parts, and other tangible  personal property which are owned or leased by Seller
and used as of the date hereof in the conduct of the business or  operations  of
the Station,  plus such additions thereto and deletions therefrom arising in the
ordinary course of business  between the date hereof and the Closing Date all as
specifically set forth in Section 3.6 hereof and in Schedule 3.6 hereto.

         1.15  "Purchase  Price" means the purchase  price  specified in Section
2.3.

         1.16 "Real  Property"  means all of the fee estates and  buildings  and
other improvements thereon, leasehold interests,  easements, licenses, rights to
access,  rights-of-way,  and other real property  interests  owned by Seller and
used in the conduct of the  business  or  operations  of the  Station  which are
identified  on Schedule  3.5 hereof plus such  additions  thereto and  deletions
therefrom arising in the ordinary course of business between the date hereof and
the Closing Date.

                                    SECTION 2
                           SALE AND PURCHASE OF ASSETS

         2.1 Agreement to Sell and Buy.  Subject to the terms and conditions set
forth in this  Agreement,  Seller hereby agrees to transfer and deliver to Buyer
on the Closing Date, and Buyer agrees to purchase,  all of the Assets,  free and
clear  of  any  claims,  liabilities,  mortgages,  liens,  pledges,  conditions,
charges, or encumbrances of any nature whatsoever (except for those permitted in
accordance with Section 2.5, 3.5 or 3.6 below),  more specifically  described as
follows:

                  (a) The Personal Property;

                  (b) The Real Property;

                  (c) The Licenses;


                                        4


<PAGE>



                  (d) The Assumed Contracts;

                  (e) Goodwill and all  trademarks,  trade names,  service marks
         and all other information and similar intangible assets relating to the
         Station, including those listed in Schedule 3.9 hereto;

                  (f) All of the Seller's proprietary information,  which relate
         to the Station, including without limitation, technical information and
         data,  machinery and equipment  warranties,  maps,  computer  discs and
         tapes, plans, diagrams,  blueprints, and schematics,  including filings
         with the FCC which relate to the Station, if any;

                  (g) All choses in action and rights under warranties of Seller
         relating to the Station or the Assets, if any;

                  (h) All books and records relating exclusively to the business
         or operations of the Station,  including executed copies of the Assumed
         Contracts,  and all records required by the FCC to be kept,  subject to
         the right of Seller to have such books and records  made  available  to
         Seller for a reasonable period, not to exceed four (4) years.

         2.2    Excluded Assets.  The Assets shall exclude the following assets,
in addition to those listed on Schedule 2.2:

                  (a) Seller's cash on hand as of the Closing Date and all other
         cash in any of Seller's bank or savings accounts; any and all insurance
         policies,  letters  of  credit,  or other  similar  items  and any cash
         surrender value in regard thereto; and any stocks, bonds,  certificates
         of deposit and similar investments.

                  (b) Any Contracts other than the Assumed Contracts;

                  (c) All books and  records of Seller,  subject to the right of
         Buyer to have access to and to copy for a period of four (4) years from
         the Closing Date any information  dealing exclusively with the business
         and  operations  of

                                        5


<PAGE>



         the Station,  and Seller's other books and records  related to internal
         matters and financial relationships with Seller's lenders;

                  (d) Any claims,  rights and  interest in and to any refunds of
         federal, state or local franchise, income or other taxes or fees of any
         nature whatsoever for periods prior to the Closing Date;

                  (e) Any pension, profit-sharing or employee benefit plans, and
         any employment or collective bargaining agreement, except to the extent
         specifically assumed in Section 2.4, 2.5 or 6.10 of this Agreement.

                  (f) The Accounts Receivable.

         2.3      Purchase Price.

                  (a)   The    Purchase    Price   shall   be   Three    Million
         Dollars($3,000,000).  The  Purchase  Price shall be adjusted to reflect
         any adjustments or prorations made and agreed to at Closing as provided
         in Section 2.4 hereof. Payment of the Purchase Price at Closing will be
         by direct wire  transfer  of funds,  by Buyer to the account of Seller.
         The Escrow  Deposit  may, at Buyer's  discretion,  either be applied at
         Closing to the Purchase Price, or returned to Buyer.

                  (b) No later than forty-five (45) days after the Closing Date,
         Buyer shall  deliver to Seller a reasonable  allocation of the Purchase
         Price prepared by BIA Consulting, Inc. among the various Assets, and if
         such schedule is reasonably satisfactory to Seller it shall be attached
         to this  Agreement as Schedule  2.3. The parties  hereby agree that the
         allocation of the Purchase  Price, as agreed to by Buyer and Seller and
         set forth in Schedule 2.3,  shall be  controlling  for tax purposes and
         shall be utilized in preparing  Internal Revenue Service Form 8594. 

         2.4 Adjustments and  Prorations.  All income and expenses  arising from
the conduct of the  business or  operations  of the  Stations  shall be prorated
between  Buyer and  Seller in  accordance  with  generally  accepted  accounting
principles as of 11:59 p.m.,


                                        6


<PAGE>



local time, on the date  immediately  preceding  the Closing Date.  Seller shall
receive all  revenues and refunds to Seller and deposits of Seller hald by third
parties and shall be responsible for all liabilities and obligations incurred or
accrued in  connection  with the  operation of the Station  through  11:59 p.m.,
local time, of the date immediately  preceding the Closing Date, and Buyer shall
receive all revenues and be responsible  for such  liabilities  and  obligations
incurred or accruing thereafter.  Such prorations shall include all business and
license fees (including any retroactive  adjustments thereof),  utility charges,
real and personal  property  taxes and  assessments  levied  against the Assets,
accrued  employee  benefits  such as vacation  time and sick time,  property and
equipment  rentals,  applicable  copyright  or other  fees,  sales  and  service
charges,  taxes  (except  for taxes  arising  from the  transfer  of the  Assets
hereunder),  and similar prepaid and deferred items.  Buyer shall receive credit
to  the  extent  of  value  (as  calculated  in  Seller's  financial  statements
consistent  with  past  practice)  of any  and  all  advertising  time to be run
following the Closing for which trade or barter  consideration has been received
by the Seller prior to the Closing which exceeds Five Thousand Dollars ($5,000),
in the aggregate.

         Notwithstanding  the foregoing,  there shall be no adjustment  for, and
Seller shall remain solely liable with respect to, any Contracts not included in
the Assumed Contracts, or any other obligation or liability not being assumed by
Buyer in accordance with Section 2.5.

                  A. Any adjustments or prorations will, insofar as feasible, be
determined and paid on the Closing Date, with final settlement and payment being
made in accordance with the procedures set forth in Section 2.4B.

                  B. Within sixty (60) days after the Closing Date,  Buyer shall
deliver to Seller a certificate (the "Closing Certificate"),  signed by a senior
officer of Buyer  after due inquiry by such  officer  but  without any  personal
liability  to such  officer,  providing a  compilation  of the  adjustments  and
prorations  to be made pursuant to this


                                        7


<PAGE>



Section 2.4, including any adjustments and prorations made at Closing,  together
with a copy of any working papers relating to such Closing  Certificate and such
other  supporting  evidence as Seller may  reasonably  request.  If Seller shall
conclude  that  the  Closing   Certificate  does  not  accurately   reflect  the
adjustments  and  prorations  to be made  pursuant to this Section  2.4,  Seller
shall,  within  thirty (30) days after its  receipt of the Closing  Certificate,
provide to Buyer its written statement of any  discrepancies  believed to exist.
Joseph L. Winn on behalf of Buyer,  and Stephen L. Hood on behalf of Seller,  or
their respective  designees,  shall attempt jointly to resolve the discrepancies
within fifteen (15) days after receipt of Seller's discrepancy statement,  which
resolution, if achieved, shall be binding upon all parties to this Agreement and
not subject to dispute or review.  If such  representatives  cannot  resolve the
discrepancy  to their mutual  satisfaction  within such fifteen (15) day period,
Buyer and Seller shall,  within the following ten (10) days, jointly designate a
regional or local branch of a nationally  known  independent  public  accounting
firm to be retained to review the Closing  Certificate  together  with  Seller's
discrepancy  statement and any other relevant  documents.  The cost of retaining
such  independent  public  accounting  firm shall be borne  equally by Buyer and
Seller.  Such firm shall report its  conclusions as to  adjustments  pursuant to
this Section  2.4,  within  thirty (30) days after it is retained,  which report
shall be conclusive on all parties to this  Agreement and not subject to dispute
or review. If, after adjustment as appropriate with respect to the amount of the
aforesaid  adjustments  paid or credited at the Closing,  Buyer is determined to
owe an amount to Seller, Buyer shall pay such amount to Seller, and if Seller is
determined  to owe an amount to Buyer,  Seller shall pay such amount  thereof to
Buyer, in each case within ten (10) days of such determination.

         2.5 Assumption of Liabilities and Obligations.  As of the Closing Date,
Buyer  shall  pay,  discharge  and  perform  (i)  all  of  the  obligations  and
liabilities  of Seller under the Licenses and the Assumed  Contracts  insofar as
they relate to the time period


                                        8


<PAGE>



on and after the Closing Date,  and arising out of events  occurring on or after
the Closing Date, (ii) all  obligations  and  liabilities  arising out of events
occurring  on or after the  Closing  Date  related to Buyer's  ownership  of the
Assets or its conduct of the business or  operations  of the Station on or after
the Closing Date,  and (iii) all  obligations  and  liabilities  for which Buyer
receives a proration adjustment hereunder. All other obligations and liabilities
of Seller,  including (i) any obligations under any Contract not included in the
Assumed Contracts,  (ii) any obligations under the Assumed Contracts relating to
the time  period  prior  to the  Closing  Date,  (iii)  any  claims  or  pending
litigation or proceedings  relating to the operation of the Station prior to the
Closing  Date,  and (iv) those  related to employees as set forth in Section 6.9
herein shall remain and be the obligations and liabilities solely of Seller.

                                    SECTION 3
                    REPRESENTATIONS AND WARRANTIES OF SELLER

Seller represents and warrants to Buyer as follows:

         3.1  Organization,   Standing  and  Authority.   Seller  is  a  General
Partnership duly formed, validly existing and in good standing under the laws of
the State of Ohio and is duly  qualified to conduct its business in the State of
Ohio,  which is the only  jurisdiction  where the  conduct  of the  business  or
operations of the Station requires such qualification.  Seller has all requisite
power and authority (i) to own,  lease,  and use the Assets as presently  owned,
leased, and used, and (ii) to conduct the business or operations of the Stations
as presently conducted.  Seller has all requisite power and authority to execute
and deliver this Agreement and the documents contemplated hereby, and to perform
and comply with all of the terms,  covenants and  conditions to be performed and
complied with by Seller,  hereunder and thereunder.  Seller is not a


                                        9


<PAGE>


participant in any joint venture or partnership  with any other person or entity
with respect to any part of the Station's operations or the Assets.

         3.2 Authorization and Binding Obligation. The execution,  delivery, and
performance  of this  Agreement  by  Seller  have been  duly  authorized  by all
necessary  action on the part of Seller.  This  Agreement has been duly executed
and delivered by Seller and constitutes the legal, valid, and binding obligation
of Seller, enforceable against Seller in accordance with its terms except as the
enforceability hereof may be affected by bankruptcy, insolvency, or similar laws
affecting creditors' rights generally, or by court-applied equitable remedies.

         3.3  Absence of  Conflicting  Agreements.  To  Seller's  knowledge  and
subject to obtaining the Consents,  the execution,  delivery, and performance of
this Agreement and the documents contemplated hereby (with or without the giving
of notice,  the lapse of time, or both): (i) does not require the consent of any
third  party;  (ii) will not  conflict  with any  provision  of the  Partnership
Agreement  of Seller;  (iii) will not conflict  with,  result in a breach of, or
constitute a default under, any law, judgment,  order, ordinance,  decree, rule,
regulation  or  ruling of any court or  governmental  instrumentality,  which is
applicable to either Seller; (iv) will not conflict with, constitute grounds for
termination of, result in a breach of, constitute a default under, or accelerate
or permit the  acceleration  of any  performance  required  by the terms of, any
material  agreement,  instrument,  license or permit to which either Seller is a
party or by which  either  may be  bound;  or (v) will  not  create  any  claim,
liability,  mortgage,  lien,  pledge,  condition,  charge, or encumbrance of any
nature whatsoever upon the Assets.

         3.4  Licenses.  Schedule 3.4  includes a true and complete  list of the
Licenses. Seller has delivered to Buyer true and complete copies of the Licenses
(including any and all amendments and other modifications thereto). As described
in Schedule  3.4, the Licenses  were validly  issued with the Seller  designated
thereon being the


                                       10


<PAGE>



authorized  legal holder  thereof.  The Licenses  comprise all of the  licenses,
permits and other  authorizations  required from any  governmental or regulatory
authority for the lawful conduct of the business or operations of the Station as
presently  operated.  Seller has no reason to believe that the Licenses will not
be renewed by the FCC or other granting authority in the ordinary course.

         3.5 Title to and  Condition  of Real  Property.  Schedule  3.5 contains
descriptions  of all the  Real  Property,  which  comprises  all  real  property
interests  necessary to conduct the business or operations of the Station as now
conducted.  Seller has delivered to Buyer true and complete copies of all leases
or other material instruments pertaining to the Real Property (including any and
all  amendments  and  other  modifications  of such  instruments),  all of which
instruments  are valid,  binding and enforceable in accordance with their terms.
To Seller's knowledge,  Seller is not in material breach, nor is any other party
in material breach, of the terms of any of such leases or other instruments. All
Real  Property (i) is available for immediate use in the conduct of the business
or operations of the Station,  and (ii) to Seller's  best  knowledge  materially
complies as described in Schedule 3.5 with all applicable  building,  electrical
and  zoning  codes and all  regulations  of any  governmental  authority  having
jurisdiction. Seller has full legal and practical access to the Real Property.

         3.6 Title to and Condition of Personal Property.  Schedule 3.6 contains
descriptions of all material items of the Personal Property, which comprises all
personal  property  used to conduct the business or operations of the Station as
now  conducted.  Except as described in Schedule  3.6,  Seller owns and has good
title to all Personal Property. None of the Personal Property owned by Seller is
subject to any security interest, mortgage, pledge, conditional sales agreement,
or other lien or encumbrance, except for (i) liens for current taxes not yet due
and payable,  and (ii) any other claims or  encumbrances  which are described in
Schedule 3.6 and annotated to indicate that such claims or encumbrances shall be
removed  prior to or at Closing.


                                       11


<PAGE>



Except as shown in Schedule  3.6, to Seller's  knowledge  the Personal  Property
taken as a whole is in good  operating  condition and repair  (ordinary wear and
tear excepted), and is available for immediate use in the business or operations
of the  Station,  and the  transmitting  and studio  equipment  included  in the
Personal  Property  (i) has  been  maintained  consistent  with  FCC  rules  and
regulations,  and (ii) will permit the Station and any unit auxiliaries  thereto
to operate in  accordance  with the terms of the FCC  Licenses and the rules and
regulations of the FCC, and with all other applicable  federal,  state and local
statutes, ordinances, rules and regulations.

         3.7 Contracts.  Schedule 3.7 contains descriptions of all the Contracts
except for: (i) contracts with advertisers for the sale of time or talent on the
Station  for cash and  substantially  at rate card and which are not prepaid and
which may be  cancelled by the Station  without  penalty on not more than thirty
(30) days notice, (ii) employment contracts and miscellaneous  service contracts
terminable  at will without  penalty,  and (iii) other  contracts  not involving
either  aggregate  liabilities  under all such contacts  exceeding Five Thousand
Dollars ($5,000) or any material nonmonetary obligation. Seller has delivered to
Buyer true and complete copies of all written  Contracts,  and true and complete
memoranda of all oral  Contracts  (including  any and all  amendments  and other
modifications  to  such  Contracts).  Other  than  the  Contracts,  to  Seller's
knowledge the Seller  requires no contract or agreement to enable it to carry on
its business as presently conducted.  To Seller's knowledge,  all of the Assumed
Contracts are in full force and effect,  and are valid,  binding and enforceable
in  accordance  with their terms,  except as the  enforceability  thereof may be
affected by bankruptcy,  insolvency or similar laws affecting  creditors' rights
generally,  or by court-applied  equitable  remedies.  Seller is not in material
breach,  nor to Seller's knowledge is any other party in material breach, of the
terms of any such Contracts.  Except as expressly set forth in Schedule 3.7, the
Seller is not aware of any intention by any party to any Assumed Contract (i) to
terminate such contract or amend the


                                       12


<PAGE>



terms thereof,  (ii) to refuse to renew the same upon expiration of its term, or
(iii) to renew the same upon expiration  only on terms and conditions  which are
more onerous than those  pertaining  to such existing  contract.  Except for the
Consents,  Seller has full legal power and  authority to assign its rights under
the Assumed  Contracts  to Buyer in  accordance  with this  Agreement,  and such
assignment will not affect the validity,  enforceability and continuation of any
of the Assumed Contracts.

         3.8  Consents.  To  Seller's  knowledge,  except  for the  FCC  Consent
provided for in Section 6.1 and the other Consents  indicated in Schedule 3.7 or
described in Schedule 3.8, no consent,  approval, permit or authorization of, or
declaration to or filing with any governmental or regulatory  authority,  or any
other  third  party  is  required  (i) to  consummate  this  Agreement  and  the
transaction contemplated hereby, (ii) to permit Seller to assign or transfer the
Assets to Buyer,  or (iii) to enable Buyer to conduct the business or operations
of the Station in essentially the same manner as such business or operations are
presently conducted.

         3.9 Trademarks, Trade Names and Copyrights.  Schedule 3.9 is a true and
complete list of all copyrights,  trademarks,  trade names,  licenses,  patents,
permits,  jingles,  privileges and other similar intangible  property rights and
interests  (exclusive  of those  required to be listed in Schedule  3.4) applied
for,  issued  to or owned by  Seller,  or under  which  Seller  is  licensed  or
franchised,  and  used in the  conduct  of the  business  or  operations  of the
Station, all of which are valid and in good standing and, to Seller's knowledge,
uncontested.  Seller has delivered to Buyer copies of all documents establishing
such  rights,  licenses,  or other  authority.  Seller is not  aware  that it is
infringing upon or otherwise  acting  adversely to any trademarks,  trade names,
copyrights, patents, patent applications,  know-how, methods, or processes owned
by any other person or persons,  and there is no claim or action pending,  or to
the knowledge of Seller threatened, with respect thereto.


                                       13


<PAGE>




         3.10 Insurance.  All of the tangible property included in the Assets is
insured against loss or damage in amounts  generally  customary in the broadcast
industry.  Schedule  3.10  comprises a true and complete  list of all  insurance
policies  of  Seller  which  insure  any part of the  Assets.  All  policies  of
insurance listed in Schedule 3.10 are in full force and effect.

         3.11  Reports.  To Seller's  knowledge,  except where  failure to do so
would not have a material  adverse  effect on the  ownership or operation of the
Station:  all  returns,  reports and  statements  which the Station is currently
required  to file with the FCC or with any other  governmental  agency have been
filed,  and  all  reporting  requirements  of the  FCC  and  other  governmental
authorities  having  jurisdiction  thereof have been complied  with; all of such
reports, returns and statements are substantially complete and correct as filed;
and the Station's public inspection file is located at the main studio and is in
compliance with the FCC's rules and regulations.

         3.12 Employee  Benefit  Plans.  There are no employee  benefit plans or
arrangements  applicable  to the  employees of Seller  employed at the Stations.
Seller has furnished or made available to Buyer true and complete  copies of all
written   documents  or  information   with  respect  to  employee  matters  and
arrangements  at  the  Station,   including  without  limitation,  all  employee
handbooks,  rules and policies,  plan documents,  trust  agreements,  employment
agreements,  summary plan descriptions, and descriptions of any unwritten plans,
if any, as listed in Schedule 3.12. There exists no action, suit or claim (other
than  routine  claims  for  benefits)  with  respect  to any of  such  plans  or
arrangements  pending or, to the knowledge of Seller,  threatened against any of
such plans or arrangements, and Seller possesses no knowledge of any facts which
could give rise to any such action, suit or claim.

         3.13  Labor  Relations.  Seller  is not a party  to or  subject  to any
collective bargaining agreements with respect to the Station except as described
in Schedule 3.7 hereto.  Seller has no written or oral  contracts of  employment
with any  employee


                                       14


<PAGE>



of the  Station,  other than those listed in Schedule  3.7.  Seller has provided
Buyer with true and complete copies of all such written  contracts of employment
and  true and  complete  memoranda  of any  such  oral  contracts.  To  Seller's
knowledge, Seller, in the operation of the Station, has complied in all material
respects  with all  applicable  laws,  rules  and  regulations  relating  to the
employment  of  labor,  including  those  related  to wages,  hours,  collective
bargaining,  occupational  safety,  discrimination,  and the  payment  of social
security and other  payroll  related  taxes,  and it has not received any notice
alleging  that it has  failed to comply in any  material  respect  with any such
laws,  rules or  regulations.  No  controversies,  disputes,  or proceedings are
pending or, to the best of its knowledge,  threatened,  between it and employees
(collectively)  of the Station.  No labor union or other  collective  bargaining
unit  represents  any of the employees of the Station.  To the best knowledge of
Seller,  there is no union  campaign  being  conducted  to  solicit  cards  from
employees  to  authorize  a union to request a National  Labor  Relations  Board
certification election with respect to any of Seller's employees at the Station.

         3.14 Taxes.  Seller has filed or caused to be filed all federal  income
tax  returns and all other  federal,  state,  county,  local or city tax returns
which are  required to be filed,  and it has paid or caused to be paid all taxes
shown on said returns or on any tax assessment received by it to the extent that
such taxes have become due, or has set aside on its books  reserves  (segregated
to the extent required by sound accounting practice) deemed by it to be adequate
with respect  thereto.  No events have occurred  which could impose on Buyer any
transferee  liability for any taxes,  penalties or interest due or to become due
from Seller.

         3.15 Claims,  Legal Actions.  Except as set forth in Schedule 3.15, and
except for any investigations and rule-making  proceedings  generally  affecting
the broadcasting industry, there is no claim, legal action, counterclaim,  suit,
arbitration,  governmental  investigation or other legal,  administrative or tax
proceeding, nor any


                                       15


<PAGE>



order, decree or judgment, in progress or pending, or to the knowledge of Seller
threatened,  against or  relating  to Seller,  the  Assets,  or the  business or
operations  of the Station,  nor does Seller know of any basis for the same.  In
particular,  except as set forth in  Schedule  3.15,  but without  limiting  the
generality  of  the  foregoing,   there  are  no  applications,   complaints  or
proceedings pending or, to the best of its knowledge,  threatened (i) before the
FCC  relating  to  the  business  or   operations  of  the  Station  other  than
applications,   complaints  or  proceedings  which  affect  the  radio  industry
generally,  (ii) before any federal or state agency involving charges of illegal
discrimination  by the  Station  under any federal or state  employment  laws or
regulations, or (iii) against Seller or the Station before any federal, state or
local agency involving environmental or zoning laws or regulations.

         3.16 Compliance with Laws. To the best knowledge of Seller,  Seller has
complied in all material respects with (i) the Licenses, and (ii) all applicable
federal,  state and local laws, rules,  regulations and ordinances.  To the best
knowledge  of Seller,  neither  the  ownership  or use,  nor the  conduct of the
business  or  operations,  of the  Station  conflicts  with  rights of any other
person, firm or corporation.

         3.17  Environmental  Matters.  During Seller's tenancy under the leases
described  in Schedule  3.5 there has been no  production,  storage,  treatment,
recycling,  disposal, use, generation,  discharge,  release or other handling or
disposition of any kind by Seller of any toxic or hazardous wastes,  substances,
products,  pollutants or materials of any kind,  including,  without limitation,
petroleum and petroleum products and asbestos, or any other wastes,  substances,
products,  pollutants or material regulated under any environmental laws at, in,
on, from or under the Real Property which in any event is in material  violation
of environmental  law. The operations of Seller are and have been conducted,  as
the case may be, in material compliance with all applicable Environmental Laws.



                                       16


<PAGE>



         3.18 Conduct of Business in Ordinary  Course.  Since December 31, 1996,
Seller has  conducted  the  business and  operations  of the Station only in the
ordinary course and has not:

                  (a)  Suffered  any  material  adverse  change in the  business
         assets or properties,  or condition  (financial or otherwise) of Seller
         or of the Station, including without limitation any damage, destruction
         or loss  affecting  the Assets and any material  decreases in operating
         cash flow;

                  (b) Made any material  increase in compensation  payable or to
         become payable to any of the employees of Seller,  or any bonus payment
         made or promised to any employee of Seller,  or any material  change in
         personnel   policies,   employee   benefits   or   other   compensation
         arrangements affecting the employees of Seller; or

                  (c) Made any sale, assignment,  lease or other transfer of any
         of  Seller's  properties  other than in the normal and usual  course of
         business with suitable replacements being obtained therefor.

         3.19 Full  Disclosure.  No  representation  or warranty  made by Seller
herein nor any  certificate,  document or other  instrument  furnished  or to be
furnished  by  Seller  pursuant  hereto  contains  or will  contain  any  untrue
statement  of  a  material  fact  made   intentionally   or  in  bad  faith,  or
intentionally  or in bad faith  omits or will omit to state  any  material  fact
known to Seller  and  required  to make the  statements  herein or  therein  not
misleading.

                                       17


<PAGE>



                                    SECTION 4
                     REPRESENTATIONS AND WARRANTIES OF BUYER

Buyer represents and warrants to Seller as follows:

         4.1 Organization,  Standing and Authority.  Buyer is a corporation duly
organized, validly existing, and in good standing under the laws of the State of
Delaware,  and shall be, at Closing,  qualified to conduct business in the State
of Ohio.  Buyer has all requisite  corporate  power and authority to execute and
deliver this Agreement and the documents contemplated hereby, and to perform and
comply with all of the terms,  covenants,  and  conditions  to be performed  and
complied with by Buyer hereunder and thereunder.

         4.2 Authorization and Binding Obligation.  The execution,  delivery and
performance  of this  Agreement  by  Buyer  have  been  duly  authorized  by all
necessary  corporate  action on the part of Buyer.  This Agreement has been duly
executed and delivered by Buyer and  constitutes the legal,  valid,  and binding
obligation of Buyer,  enforceable  against  Buyer in  accordance  with its terms
except as the enforceability  hereof may be affected by bankruptcy,  insolvency,
or similar laws  affecting  creditors'  rights  generally,  or by  court-applied
equitable remedies.

         4.3  Absence  of  Conflicting  Agreements.  Subject  to  obtaining  the
Consents,  the execution,  delivery,  and  performance of this Agreement and the
documents  contemplated  hereby (with or without the giving of notice, the lapse
of time,  or both):  (i) does not require the consent of any third  party;  (ii)
will not conflict with the Articles of Incorporation  or Bylaws of Buyer;  (iii)
will not conflict with, result in a breach of, or constitute a default under, or
accelerate or permit the  acceleration of any performance  required by the terms
of, any material agreement,  instrument, licenses, or permit to which Buyer is a
party or by which Buyer may be bound.


                                       18


<PAGE>



         4.4 FCC Qualification. Buyer has no knowledge of any facts which would,
under present law  (including  the  Communications  Act of 1934, as amended) and
present  rules,  regulations  and practices of the FCC,  disqualify  Buyer as an
assignee of the  licenses,  permits and  authorizations  listed on Schedule  3.4
hereto, or as an owner and/or operator of the Station's  Assets,  and Buyer will
not take,  or  unreasonably  fail to take,  any action  which Buyer knows or has
reason to know would cause such disqualification (it being understood that Buyer
has  an  active   duty  to  attempt   to   ascertain   what  would   cause  such
disqualification). Should Buyer become aware of any such facts, it will promptly
notify  Seller in writing  thereof and use its best  efforts to prevent any such
disqualification.  Buyer further  represents and warrants that it is financially
qualified to meet all terms,  conditions and  undertakings  contemplated by this
Agreement.

         4.5 Full Disclosure. No representation or warranty made by Buyer herein
nor any certificate,  document or other instrument  furnished or to be furnished
by Buyer  pursuant  hereto  contains or will  contain any untrue  statement of a
material fact made  intentionally  or in bad faith, or  intentionally  or in bad
faith omits or will omit to state any material  fact known to Buyer and required
to make the statements herein or therein not misleading.


                                    SECTION 5
                               COVENANTS OF SELLER

         5.1 Pre-Closing Covenants.  Except as contemplated by this Agreement or
with the prior  written  consent  of  Buyer,  not to be  unreasonably  withheld,
between the date hereof and the Closing  Date,  Seller shall operate the Station
in the ordinary course of business in accordance with its past practices (except
where such would


                                       19


<PAGE>



conflict  with  the  following  covenants  or with  Seller's  other  obligations
hereunder), and abide by the following negative and affirmative covenants:

                  A.  Negative  Covenants.  Seller  shall  not  do  any  of  the
following:

                  (1) Compensation.  Increase the compensation, bonuses or other
         benefits  payable or to be payable to any person employed in connection
         with the conduct of the business or operations  of the Station,  except
         in accordance with past practices;

                  (2) Contracts.  Modify or amend any of the Assumed  Contracts;
         enter into any new Contracts except in the ordinary course of business,
         provided that all new Contracts  (other than  Contracts for the sale of
         broadcast  time)  shall  not  involve  either   aggregate   liabilities
         exceeding Five Thousand Dollars ($5,000),  or any material  nonmonetary
         obligation;

                  (3) Disposition of Assets.  Sell, assign,  lease, or otherwise
         transfer or dispose of any of the Assets, except for assets consumed or
         disposed of in the ordinary course of business, where no longer used or
         useful in the business or  operations  of the Station or in  connection
         with the  acquisition  of replacement  property of equivalent  kind and
         value;

                  (4) Encumbrances. Create, assume or permit to exist any claim,
         liability, mortgage, lien, pledge, condition, charge, or encumbrance of
         any  nature  whatsoever  upon  the  Assets,  except  for (i)  those  in
         existence on the date of this Agreement, disclosed in Schedules 3.5 and
         3.6, or permitted by Section 2.5, 3.5 or 3.6 and (ii) mechanics'  liens
         and other  similar  liens  which will be removed  prior to the  Closing
         Date;

                  (5) Programming.  Reduce the Station's programming hours below
         the minimum  required by the FCC, or make any other material changes in
         the Station's programming policies,  except such changes as in the good
         faith judgment of the Seller are required by the public interest;

                  (6)  Licenses.  Do any act or fail to do any act  which  might
         result in the expiration, revocation, suspension or modification of any
         of  the  Licenses,   or  fail  to  prosecute  with  due  diligence  any
         applications  to any  governmental  authority  in  connection  with the
         operation of the Station;

                  (7)  Rights.  Waive any material right relating to the Station
         or the Assets; or



                                       20


<PAGE>



                  (8) No Inconsistent Action. Knowingly take any action which is
         inconsistent  with its  obligations  hereunder or which could hinder or
         delay  the  consummation  of  the  transaction   contemplated  by  this
         Agreement.

                  B. Affirmative Covenants.  Seller shall do the following:

                           (1) Access to Information.  Upon prior notice,  allow
         Buyer and its authorized  representatives reasonable access at mutually
         agreeable  times at Buyer's expense during normal business hours to the
         Assets  and  to  all  other  properties,   equipment,  books,  records,
         Contracts  and  documents  relating to the Station (but not relating to
         Seller's  other  operations  or business)  for the purpose of audit and
         inspection,  and  furnish  or  cause  to be  furnished  to Buyer or its
         authorized  representatives all information with respect to the affairs
         and  business  of the  Station  (but not  relating  to  Seller's  other
         operations  or  business)  as Buyer may  reasonably  request,  it being
         understood that the rights of Buyer hereunder shall not be exercised in
         such a manner as to interfere  with the  operations  of the business of
         Seller;  provided that neither the  furnishing of such  information  to
         Buyer or its  representatives  nor any investigation made heretofore or
         hereafter  by  Buyer  shall  affect  Buyer's  rights  to  rely  on  any
         representation  or warranty made by Seller in this  Agreement,  each of
         which shall survive any furnishing of information or any investigation;

                           (2) Maintenance of Assets. Maintain all of the Assets
         or replacements  thereof and improvements  thereon in current condition
         (ordinary wear and tear excepted), and use, operate and maintain all of
         the above  assets in a reasonable  manner,  with  inventories  or spare
         parts and  expendable  supplies being  maintained at levels  consistent
         with past practices;

                           (3)  Insurance.   Maintain  the  existing   insurance
         policies on the Station and the Assets;

                           (4) Consents.  Use its  reasonable  efforts to obtain
         the Consents;

                           (5)  Preservation  of  Business.  Use its  reasonable
         efforts to preserve the business and audience of the Stations,  and its
         present  relationships with their employees,  suppliers,  customers and
         others  having  business  relations  with  it and  maintain  levels  of
         marketing and  promotions  efforts and  expenditures  during the period
         prior to the  Closing  Date equal to or  greater to such  levels in the
         year immediately prior to the Closing Date;

                           (6) Books and Records. Maintain its books and records
         in accordance with past practices;

                           (7) Notification. Promptly notify Buyer in writing of
         any unusual or material  developments with respect to the assets of the
         Station, and


                                       21


<PAGE>



         of any material change in any of the information  contained in Seller's
         representations and warranties  contained in Section 3 hereof or in the
         schedules  hereto,  provided that such  notification  shall not relieve
         Seller of any obligations hereunder;

                           (8)  Personnel.  Promptly  notify  Buyer as personnel
         vacancies  occur  at  the  Station  and  consider  for  employment  all
         personnel recommended by Buyer for such vacant positions;

                           (9) Trade and Barter Agreements. Provide prior to the
         Closing  Date the  advertising  time due under  any  trade  and  barter
         agreements listed in Schedule 3.7;

                           (10)  Financial  Information.  As may  be  requested,
         furnish to Buyer  within  fifteen (15) days after the end of each month
         ending  between  the date hereof and the  Closing  Date a statement  of
         income and expense  relating to the Station's  operations for the month
         just ended and such other financial information  (including information
         on payables and receivables) as Buyer may reasonably  request and which
         is prepared in the ordinary course of business.

                           (11) Contracts. Prior to the Closing Date, deliver to
         Buyer a list of all Contracts  entered into between the date hereof and
         the Closing  Date of the type  required  to be listed in Schedule  3.7,
         together with the copies of such Contracts; and

                           (12)  Compliance  with Laws.  Comply in all  material
         respects with all rules and regulations of the FCC, and all other laws,
         rules and  regulations to which Seller,  the Station and the Assets are
         subject.

         5.2 Post-Closing  Covenants.  After the Closing,  Seller will take such
actions,  and execute and deliver to Buyer such further deeds, bills of sale, or
other transfer  documents as, in the reasonable opinion of counsel for Buyer and
Seller, may be necessary to ensure, complete and evidence the full and effective
transfer of the Assets to Buyer pursuant to this Agreement.


                                    SECTION 6
                        SPECIAL COVENANTS AND AGREEMENTS


                                       22


<PAGE>




         6.1 FCC Consent.  The assignment of the FCC Licenses as contemplated by
this Agreement is subject to the prior consent and approval of the FCC.

                  A. Within ten (10) days after the execution of this Agreement,
Buyer and Seller  shall  file with the FCC an  appropriate  application  for FCC
Consent.  The parties  shall  prosecute  said  application  with all  reasonable
diligence  and  otherwise  use their  best  efforts  to obtain the grant of such
application as  expeditiously  as  practicable.  If the FCC Consent  imposes any
condition on any party  hereto,  such party shall use its best efforts to comply
with such condition unless compliance would be unduly burdensome or would have a
material adverse effect upon it. If reconsideration or judicial review is sought
with respect to the FCC  Consent,  Buyer and Seller shall oppose such efforts to
obtain reconsideration or judicial review (but nothing herein shall be construed
to limit any party's right to terminate this Agreement  pursuant to Section 9 of
this Agreement).

                  B.  The   transfer  of  the  Assets   hereunder  is  expressly
conditioned upon (i) the grant of the FCC Consent without any materially adverse
conditions on Buyer,  (ii)  compliance by the parties hereto with any reasonable
conditions  imposed in the FCC Consent,  and (iii) the FCC Consent,  through the
passage of time or otherwise, becoming a Final Order, provided, though, that the
condition  that the FCC Consent shall have become a Final Order may be waived by
Buyer, in its sole discretion.

         6.2 Control of the Station.  Buyer shall not,  directly or  indirectly,
control,  supervise,  direct,  or attempt to control,  supervise or direct,  the
operations of the


                                       23


<PAGE>



Station;  such operations,  including complete control and supervision of all of
the  Station's   programs,   employees,   and   policies,   shall  be  the  sole
responsibility of Seller until the completion of the Closing hereunder.

         6.3 Taxes, Fees and Expenses.  Buyer shall pay all sales,  transfer and
similar  taxes and fees,  if any,  arising  out of the  transfer  of the  Assets
pursuant to this  Agreement.  All filing fees  required by the FCC shall be paid
equally by Seller and Buyer.  Except as  otherwise  provided in this  Agreement,
each  party  shall  pay  its  own  expenses  incurred  in  connection  with  the
authorization,  preparation,  execution,  and  performance  of  this  Agreement,
including  all fees and  expenses of  counsel,  accountants,  agents,  and other
representatives.

         6.4 Brokers. Buyer and Seller each represents and warrants that neither
it nor any person or entity  acting on its behalf has incurred any liability for
any finders' or brokers' fees or commissions in connection  with the transaction
contemplated by this  Agreement,  except for Media Venture  Partners,  whose fee
shall be solely the responsibility of Seller.

         6.5  Confidentiality.  Except as necessary for the  consummation of the
transaction  contemplated  hereby,  including Buyer's obtaining financing in any
form or means of its  choosing  related  hereto,  each  party  hereto  will keep
confidential  any  information  which  is  obtained  from  the  other  party  in
connection  with the  transaction  contemplated  hereby and which is not readily
available to members of the general  public,  and will not use such  information
for any  purpose  other than in  furtherance  of the  transactions  contemplated
hereby.  In the event this  Agreement  is


                                       24


<PAGE>



terminated and the purchase and sale contemplated  hereby abandoned,  each party
will return to the other  party all  documents,  work  papers and other  written
material obtained by it in connection with the transaction  contemplated hereby,
without  retaining  copies  of such  documents,  work  papers  or other  written
material.  

         6.6 Cooperation. Buyer and Seller shall cooperate fully with each other
and their  respective  counsel and  accountants  in connection  with any actions
required  to be  taken  as part  of  their  respective  obligations  under  this
Agreement,  and Buyer and Seller shall  execute  such other  documents as may be
necessary  and  desirable  to  the   implementation  and  consummation  of  this
Agreement,  and otherwise use their best efforts to consummate  the  transaction
contemplated hereby and to fulfill their obligations hereunder.  Notwithstanding
the  foregoing,  except as  otherwise  set forth  herein,  Buyer  shall  have no
obligation  (i) to expend funds to obtain the Consents,  or (ii) to agree to any
adverse change in any License or Assumed  Contract to obtain a Consent  required
with respect thereto.

         6.7      Risk of Loss.

                  A. The risk of loss,  damage or  impairment,  confiscation  or
condemnation  of any of the Assets from any cause  whatsoever  shall be borne by
Seller at all times prior to the completion of the Closing.

                  B. If any  damage or  destruction  of the  Assets or any other
event occurs which prevents signal transmission by the Station in the normal and
usual  manner  and  Seller  cannot  restore  or  replace  the Assets so that the
conditions  are cured and normal and usual  transmission  is resumed  before the
Closing  Date,  the Closing


                                       25


<PAGE>


Date shall be  postponed,  for a period of up to one  hundred  and twenty  (120)
days, to permit the repair or replacement of the damage or loss.

                  C. In the event of any  damage or  destruction  of the  Assets
described  above,  if such  Assets have not been  restored  or replaced  and the
Station's  normal and usual  transmission  resumed  within the one  hundred  and
twenty (120) day period  specified  above,  Buyer may terminate  this  Agreement
forthwith without any further obligation  hereunder by written notice to Seller.
Alternatively,  Buyer may, at its option,  proceed to close this  Agreement  and
complete  the  restoration  and  replacement  of such  damaged  Assets after the
Closing  Date,  in which  event  Seller  shall  deliver  to Buyer all  insurance
proceeds received in connection with such damage or destruction of the Assets to
the extent not  already  expended  by Seller  arising  in  connection  with such
restoration and replacement.

                  D.  Notwithstanding any of the foregoing,  Buyer may terminate
this Agreement  forthwith  without any further  obligation  hereunder by written
notice to Seller if any event occurs which prevents  signal  transmission by the
Station  in a  manner  generally  equivalent  to its  current  operations  for a
consecutive  period of five (5) or a  cumulative  period of  fourteen  (14) days
after the date hereof.

         6.8      Employee Matters.

                  A.  Within  five (5)  business  days after  execution  of this
Agreement,  Seller  shall  provide  to Buyer  an  accurate  list of all  current
employees of the Station together with a description of the terms and conditions
of their  respective  employment  (including  salary,  bonus and  other  benefit
arrangements) and their duties as of the date of this Agreement,  as well as the
annual salaries thereof.  Seller shall


                                       26


<PAGE>


promptly notify Buyer of any changes that occur prior to Closing with respect to
such information.

                  B. Nothing  contained in this Agreement  shall confer upon any
employee of Seller any right with respect to continued  employment by Buyer, nor
shall  anything  herein  interfere  with any right the Buyer may have  after the
Closing Date to (i)  terminate  the  employment  of any of the  employees at any
time,  with or without  cause,  or (ii) establish or modify any of the terms and
conditions of the employment of the employees in the exercise of its independent
business judgment.

                  C. Except as otherwise set forth herein,  Buyer will not incur
any  liability  on  account  of  Seller's   employees  in  connection  with  the
transaction,   including,  without  limitation,  any  liability  on  account  of
unemployment insurance contributions, termination payments, retirement, pension,
profit-sharing,  bonus,  severance pay,  disability,  health,  accrued vacation,
accrued sick lease (unless a pro-rated adjustment is made as to vacation or sick
leave)   or  other   employee   benefit   plans,   practices,   agreements,   or
understandings.

         6.9 Accounts Receivable.  At the Closing,  Seller shall assign to Buyer
for collection  purposes only all Accounts  Receivable.  Seller shall deliver to
Buyer  on or as soon as  practicable  after  the  Closing  date a  complete  and
detailed statement showing the name, amount and age of each Account  Receivable.
Subject to and limited by the following,  collections of the Accounts Receivable
will be for the account of Seller.  Buyer shall endeavor in the ordinary  course
of business to collect the Accounts  Receivable for a period of ninety (90) days
after the Closing Date (the "Collection


                                       27


<PAGE>



Period").  Any payment  received by Buyer during the Collection  Period from any
customer with an account which is an Account  Receivable  shall first be applied
in reduction of the Account Receivable,  unless the customer has commenced legal
action  specifically  disputing an outstanding balance and so directs in writing
with the accompanying payment. During the Collection Period, Buyer shall, within
ten (10) days of the end of each calendar month, furnish Seller with a list of ,
and pay over to Seller,  the amounts  collected  during such preceding  calendar
month with respect to the Accounts Receivable. Buyer shall provide Seller with a
final  accounting on or before the fifteenth (15th) day following the end of the
Collection  Period.  Upon the  request  of either  party at and after such time,
Buyer  and  Seller  shall  meet  to  mutually  and in  good  faith  analyze  any
uncollected  Account  Receivable to determine if the same,  in their  reasonable
business  judgment,  are deemed to be collectable and if Buyer desires to retain
such Account in the interest of maintaining on advertising  relationship.  As to
each such Account,  Buyer and Seller shall  negotiate a good faith value of such
Account,  which  Buyer  shall pay to Seller  if Buyer,  in its sole  discretion,
chooses to retain such  Account.  Seller  shall  retain the right to collect any
Account as to which the parties are unable to reach agreement as to a good faith
value, and Buyer agrees to turn over to Seller any payments received against any
such  Account.  As  Seller's  agent,  Buyer  shall not be  obligated  to use any
extraordinary  efforts  or  expend  any  sums  to  collect  any of the  Accounts
Receivable  assigned  to it for  collection  hereunder  or to refer  any of such
Accounts  Receivable to a collection  agency or to any attorney for  collection,
and Buyer shall not make any such referral or  compromise,


                                       28


<PAGE>



nor settle or adjust the amount of any such Account Receivable,  except with the
approval of Seller. Buyer shall incur no liability to Seller for any uncollected
account  unless  Buyer  shall  have  engaged  in  willful  misconduct  or  gross
negligence in the  collection of such account.  During and after the  Collection
Period,  without specific  agreement with Buyer to the contrary,  neither Seller
nor its agents shall make any direct  solicitation of the Account Receivable for
collection  purposes except for Accounts retained by Seller after the Collection
Period.

         6.10 Signal Upgrade.  Seller shall fully cooperate,  including  without
limitation  consenting to FCC filings,  in Buyer's efforts to upgrade the signal
of the Station to Class B1.  Seller  shall make  available to Buyer all records,
studies and documentation  related to the signal and to the proposed  relocation
of the transmission site for radio station WVNU(FM), Greenfield, Ohio.

                                    SECTION 7
                  CONDITIONS TO OBLIGATIONS OF BUYER AND SELLER

         7.1 Conditions to Obligations of Buyer. All obligations of Buyer at the
Closing  hereunder  are subject to the  fulfillment  prior to and at the Closing
Date of each of the following  conditions any of which may be waived by Buyer in
whole or in part in its sole discretion in writing:

                  A.  Representations  and Warranties.  The  representations and
warranties  of  Seller  in this  Agreement  shall  be true and  complete  in all
material respects at and as of the Closing Date, except for changes contemplated
by this


                                       29


<PAGE>



Agreement,  as though such representations and warranties were made at and as of
such time.

                  B. Covenants and Conditions. Seller shall have in all material
respects performed and complied with the covenants,  agreements,  and conditions
required by this Agreement to be performed or complied with by it prior to or on
the Closing Date.

                  C. Consents. The FCC Consent as specified in Sections 1.10 and
6.1.B.,  above,  and each of the Consents  marked as  "material" on Schedule 3.7
shall have been duly  obtained and  delivered to Buyer with no material  adverse
change to the terms of the  License or Assumed  Contract  with  respect to which
such Consent is obtained.

                  D. Licenses.  Seller shall be the holder of the Licenses,  and
there shall not have been any  modification of any of such Licenses which has an
adverse effect on the Station or the conduct of its business or  operations.  No
proceeding shall be pending the effect of which would be to revoke, cancel, fail
to renew, suspend or modify adversely any of the Licenses.

                  E.  Deliveries.  Seller  shall have made or stand  willing and
able to make all the deliveries to Buyer set forth in Section 8.2

                  F. Adverse Change.  Between the date of this Agreement and the
Closing Date,  there shall have been no material adverse change in the Assets or
the Stations.

         7.2 Conditions to Obligations of Seller.  The  obligations of Seller at
the Closing hereunder are subject to the fulfillment prior to and at the Closing
Date of each of the following conditions any of which may be waived by Seller in
whole or in part in its sole discretion in writing:

                  A.  Representations  and Warranties.  The  representations and
warranties of Buyer  contained in this  Agreement  shall be true and complete in
all


                                       30


<PAGE>


material respects at and as of the Closing Date, except for changes contemplated
by this Agreement,  as though such  representations  and warranties were made at
and as of such time.

                  B. Covenants and Conditions.  Buyer shall have in all material
respects performed and complied with the covenants,  agreements,  and conditions
required by this Agreement to be performed or complied with by it prior to or on
the Closing Date.

                  C. Consent.  The FCC shall have given its Consent as spedified
in Sections 1.10 and 6.1.B., above.

                  D. Deliveries. Buyer shall have made or stand willing and able
to make all the deliveries set forth in Section 8.3.

                                    SECTION 8
                         CLOSING AND CLOSING DELIVERIES

         8.1 Closing.  The closing  shall take place at 10:00am on a date, to be
set by Buyer, upon five (5) days written notice to Seller, no later than fifteen
(15)  business  days  following the date upon which the FCC Consent has become a
Final Order (the "Closing  Date"),  provided,  though,  that Buyer may waive the
requirement  for a Final Order and schedule the Closing Date, with five (5) days
written notice to Seller, at any time after the receipt of FCC Consent.  Closing
shall be held at the  offices of Buyer or Seller or such other place as shall be
mutually agreed to by Buyer and Seller,  or by mail,  facsimile and/or overnight
delivery.

         8.2 Deliveries by Seller. Prior to or on the Closing Date, Seller shall
deliver to Buyer the following, in form and substance reasonably satisfactory to
Buyer and its counsel:


                                       32


<PAGE>




                  (a) Transfer Documents.  Duly executed warranty bills of sale,
         motor vehicle titles,  assignments  and other transfer  documents which
         shall be sufficient to vest good and marketable  title to the Assets in
         the name of Buyer or its  permitted  assignees,  free and  clear of any
         claims, liabilities, mortgages, liens, pledges, conditions, charges, or
         encumbrances  of any nature  whatsoever  (except for those permitted in
         accordance with Sections 2.5, 3.5 or 3.6 hereof);

                  (b)  Consents.   The  original  of  each  Consent   marked  as
         "material" with an asterisk on Schedule 3.7;

                  (c)  Seller's  Certificate.  A  certificate,  dated  as of the
         Closing Date,  executed by the General  Partner of Seller,  certifying:
         (i) that the representations and warranties of Seller contained in this
         Agreement  are true and  complete  in all  material  respects as of the
         Closing Date,  except for changes  contemplated by this  Agreement,  as
         though  made on and as of that date;  and (ii) that  Seller has, in all
         material  respects,  performed  its  obligations  and complied with its
         covenants set forth in this Agreement to be performed and complied with
         prior to or on the Closing Date;

                  (d) General Partner's Certificate. A certificate,  dated as of
         the Closing Date, executed by Seller's General Partner:  (i) certifying
         that the  execution  and  delivery of this  Agreement by Seller and the
         consummation   of  the  transaction   contemplated   hereby  have  been
         authorized and ratified; and (ii) providing,  as attachments thereto, a
         certificate of legal existence  certified by an appropriate  Ohio state
         official;  as of a date not more  than  fifteen  (15) days  before  the
         Closing  Date  and a copy of  Seller's  limited  Partnership  Agreement
         certified by Seller's General Partner as of the Closing Date;

                  (e) Licenses,  Contracts,  Business  Records,  Etc. Copies, if
         available, of all licenses, Assumed Contracts, blueprints,  schematics,
         working drawings, plans, projections,  statistics, engineering records,
         and all  files  and  records  used by  Seller  in  connection  with its
         operations of the Station;

                  (f)  Opinions  of Counsel.  Opinions  of Seller's  counsel and
         communications  counsel dated as of the Closing Date,  and addressed to
         Buyer and at Buyer's directions,  to Buyer's lenders,  substantially in
         the form of Schedule 8.2 hereto.

         8.3 Deliveries by Buyer.  Prior to or on the Closing Date,  Buyer shall
deliver to Seller the following,  in form and substance reasonably  satisfactory
to Seller and its counsel:

                  (a) Purchase  Price.  The Purchase Price paid by wire transfer
         to Seller as provided in Section 2.3;


                                       32


<PAGE>




                  (b) Assumption  Agreements.  Appropriate assumption agreements
         pursuant to which Buyer shall assume and undertake to perform  Seller's
         obligations  under the  Licenses  and Assumed  Contracts  arising on or
         after the Closing Date;

                  (c)  Officer's  Certificate.  A  certificate,  dated as of the
         Closing  Date,  executed by the  President or Vice  President of Buyer,
         certifying  (i)  that  the  representations  and  warranties  of  Buyer
         contained  in this  Agreement  are true and  complete  in all  material
         respects as of the Closing  Date,  except for changes  contemplated  by
         this  Agreement,  as though made on and as of that date,  and (ii) that
         Buyer has, in all material  respects,  performed  its  obligations  and
         complied with its covenants set forth in this Agreement to be performed
         or complied with on or prior to the Closing Date;

                  (d) Secretary's  Certificate.  A certificate,  dated as of the
         Closing Date,  executed by Buyer's  Secretary:  (i) certifying that the
         resolutions,  as attached  to such  certificate,  were duly  adopted by
         Buyer's Board of Directors,  authorizing and approving the execution of
         this Agreement and the  consummation  of the  transaction  contemplated
         hereby and that such resolutions  remain in full force and effect;  and
         (ii) a copy of the corporate  charter,  articles of  incorporation  and
         Bylaws of Buyer as in effect on the date  hereof,  certified by Buyer's
         secretary as of the Closing Date;

                  (e) Opinion of Counsel.  An opinion of Buyer's General Counsel
         dated as of the Closing Date, substantially in the form of Schedule 8.3
         hereto.


                                    SECTION 9

                           RIGHTS OF BUYER AND SELLER
                            ON TERMINATION OR BREACH

         9.1  Termination  Rights.  This  Agreement  may be terminated by either
Buyer or Seller if the  terminating  party is not then in breach of any material
provision of this  Agreement,  upon written notice to the other party,  upon the
occurrence of any of the following:

                  (a) If on the Closing Date (i) any of the conditions precedent
         to the obligations of the  terminating  party set forth in Section 7 of
         this  Agreement


                                       33


<PAGE>



         shall not have been materially satisfied, and (ii) satisfaction of such
         condition shall not have been waived by the terminating party;

                  (b) If the Closing  shall not have  occurred on or before June
         1, 1998

Upon  termination:  (i) if  neither  party  hereto is in breach of any  material
provision  of this  Agreement,  the  parties  hereto  shall not have any further
liability  to each  other;  (ii) if Seller  shall be in  breach of any  material
provision  of this  Agreement,  Buyer  shall have only the  rights and  remedies
provided  in Section  9.3 or (iii) if Buyer  shall be in breach of any  material
provision of this Agreement, Seller shall be entitled only to liquidated damages
as provided in Section 9.2 hereof.  If, upon termination,  Buyer shall not be in
breach of any material provision of this Agreement, the Escrow Deposit, plus all
interest or other proceeds from the investment  thereof,  less any  compensation
due the Escrow Agent, shall be paid to Buyer.

         9.2  Liquidated  Damages.  In the event this Agreement is terminated by
Seller due to a  material  breach by Buyer of its  representations,  warranties,
covenants and other  obligations  under this Agreement,  then the Escrow Deposit
shall be paid to Seller as liquidated  damages,  it being agreed that the Escrow
Deposit shall constitute full payment for any and all damages suffered by Seller
by reason of Buyer's failure to close this Agreement.  Buyer and Seller agree in
advance that actual  damages would be difficult to ascertain and that the amount
of the Escrow  Deposit is a fair and  equitable  amount to reimburse  Seller for
damages  sustained due to Buyer's  failure to consummate  this Agreement for the
above-stated  reason.  All interest or other proceeds from the investment of the
Escrow Deposit,  less any  compensation  due the Escrow Agent,  shall be paid to
Seller.

         9.3  Specific  Performance.  The  parties  recognize  that in the event
Seller should refuse to perform under the provisions of this Agreement, monetary
damages  would not be  adequate.  Buyer  shall  therefore  be  entitled,  as its
exclusive remedy


                                       34


<PAGE>


hereunder, to obtain specific performance of the terms of this Agreement. In the
event of any action to enforce this Agreement,  Seller hereby waives the defense
that there is an adequate remedy at law.

         9.4  Defaults.  In the  event  of a  default  by a  party  hereto  (the
"Defaulting  Party")  which  results  in the  filing of a lawsuit  for  damages,
specific performance,  or other remedy the other party (the Nondefaulting Party)
shall be entitled to  reimbursement  by the Defaulting Party of reasonable legal
fees  and  expenses  incurred  by  the  Nondefaulting  Party  in the  event  the
Nondefaulting Party prevails.


                                   SECTION 10

                    SURVIVAL OF REPRESENTATIONS AND WARRANTS,
                               AND INDEMNIFICATION

         10.1 Representations and Warranties. All representations and warranties
contained  in this  Agreement  shall be deemed  continuing  representations  and
warranties,  and shall  survive  the Closing  Date for a period of fifteen  (15)
months (the "Survival  Period").  No claim for indemnification may be made under
this  Section 10 (except for section  10.3(a) or related  claims  under  Section
10.3(c)) after the expiration of the Survival Period.  Any  investigations by or
on behalf of any party hereto shall not constitute a waiver as to enforcement of
any  representation  or warranty  contained  herein,  except that insofar as any
party has  knowledge of any  misrepresentation  or breach of warranty at Closing
and such  knowledge  is  documented  in writing at Closing,  such party shall be
deemed to have waived such misrepresentation or breach. As of the effective date
of this Agreement,  neither party is aware of any misrepresentation or breach of
warranty under this Agreement on the part of the other party hereto.


                                       35


<PAGE>




         10.2  Indemnification by Seller.  Seller shall indemnify and hold Buyer
harmless against and with respect to, and shall reimburse Buyer for:

                  (a) Any and all losses,  liabilities or damages resulting from
         any untrue representation,  breach of warranty or nonfulfillment of any
         covenants by Seller contained  herein or in any certificate,  delivered
         to Buyer hereunder.

                  (b) Any and all  obligations  of Seller  not  assumed by Buyer
         pursuant to the terms hereof;

                  (c) Any and all losses,  liabilities or damages resulting from
         Seller's  operation or  ownership  of the Station  prior to the Closing
         Date,  including any and all liabilities  arising under the Licenses or
         the Assumed  Contracts  which relate to events  occurring  prior to the
         Closing Date; and

                  (d) Any and all actions, suits, proceedings,  claims, demands,
         assessments,  judgments, and reasonable costs and expenses, incident to
         any of the  foregoing or incurred in  investigating  or  attempting  to
         avoid the same or to oppose the imposition thereof.

         10.3  Indemnification  by Buyer.  Buyer shall indemnify and hold Seller
harmless against and with respect to, and shall reimburse Seller for:

                  (a) Any and all losses,  liabilities or damages resulting from
         any untrue representation,  breach of warranty or nonfulfillment of any
         covenants by Buyer contained herein or in any certificate  delivered to
         Seller hereunder;

                  (b) Any and all losses,  liabilities or damages resulting from
         Buyer's  operation  or ownership of the Station on or after the Closing
         Date,  including any and all  liabilities or obligations  arising under
         the Licenses or the Assumed  Contracts which relate to events occurring
         after  the  Closing  Date or  otherwise  assumed  by Buyer  under  this
         Agreement; and

                  (c) Any and all actions, suits, proceedings,  claims, demands,
         assessments,  judgments,  and reasonable costs and expenses,  including
         reasonable legal fees and expenses, incident to any of the foregoing or
         incurred in  investigating or attempting to avoid the same or to oppose
         the imposition thereof.

         10.4 Procedures for Indemnification. The procedures for indemnification
shall be as follows:


                                       36


<PAGE>




                  A. The party  claiming the  indemnification  (the  "Claimant")
shall  promptly  give notice to the party from whom  indemnification  is claimed
(the "Indemnifying  Party") of any claim, whether between the parties or brought
by a third party,  specifying (i) the factual basis for such claim, and (ii) the
amount of the claim. If the claim relates to an action, suit or proceeding filed
by a third party against Claimant, such notice shall be given by Claimant within
five (5) days after written notice of such action,  suit or proceeding was given
to Claimant.

                  B.  Following  receipt of notice from the Claimant of a claim,
the Indemnifying Party shall have thirty (30) days to make such investigation of
the claim as the  Indemnifying  Party  deems  necessary  or  desirable.  For the
purposes of such  investigation,  the Claimant  agrees to make  available to the
Indemnifying  Party  and/or its  authorized  representative(s)  the  information
relied upon by the Claimant to  substantiate  the claim. If the Claimant and the
Indemnifying  Party agree at or prior to the  expiration of said thirty (30) day
period (or any  mutually  agreed upon  extension  thereof) to the  validity  and
amount of such  claim,  or if the  Indemnifying  Party does not  respond to such
notice,  the Indemnifying  Party shall  immediately pay to the Claimant the full
amount of the claim. Buyer shall be entitled to apply any or all of the Accounts
Receivable  collected  on  behalf  of  Seller  to a claim as to  which  Buyer is
entitled to  indemnification  hereunder.  If the Claimant  and the  Indemnifying
Party do not agree  within said period (or any  mutually  agreed upon  extension
thereof), the Claimant may seek appropriate legal remedy.

                  C. With  respect to any claim by a third party as to which the
Claimant is entitled to indemnification  hereunder, the Indemnifying Party shall
have the right at its own expense,  to  participate  in or assume control of the
defense  of  such  claim,  and the  Claimant  shall  cooperate  fully  with  the
Indemnifying Party, subject to reimbursement for reasonable actual out-of-pocket
expenses incurred by the Claimant as the result of a request by the Indemnifying
Party. If the Indemnifying  Party elects


                                       37


<PAGE>


to assume control of the defense of any  third-party  claim,  the Claimant shall
have the right to participate in the defense of such claim at its own expense.

                  D. If a  claim,  whether  between  the  parties  or by a third
party,  requires  immediate action, the parties will make all reasonable efforts
to reach a decision with respect thereto as expeditiously as possible.

                  E. If the Indemnifying  Party does not elect to assume control
or otherwise  participate  in the defense of any third party claim,  it shall be
bound by the results obtained in good faith by the Claimant with respect to such
claim.

                  F. The  indemnification  rights  provided in Sections 10.2 and
10.3 shall extend to the shareholders,  directors,  officers, partners employees
and  representatives  of the Claimant although for the purpose of the procedures
set forth in this Section 10.4, any indemnification claims by such parties shall
be made by and through the Claimant.

                                   SECTION 11
                                  MISCELLANEOUS

         11.1 Notices. All notices,  demands, and requests required or permitted
to be given under the provisions of this Agreement shall be (i) in writing, (ii)
delivered  by  personal  delivery,  or sent by  commercial  delivery  service or
registered  or  certified  mail,  return  receipt  requested,  or  by  facsimile
transmission, with receipt confirmation,  (iii) deemed to have been given on the
date of personal  delivery or the date set forth in the records of the  delivery
service or on the return receipt, and (iv) addressed as follows:

If to Seller:           McMurray Communications
                        26 West Orchard
                        Lebanon, Ohio  45036
                        Attn: Mr. & Mrs. Michael McMurray


                                       38


<PAGE>

 
With a copy (which
shall not constitute
 notice) to:            John L. Tierney
                        Tierney and Swift
                        1001 Twenty-Second Street, N.W.
                        Suite 350
                        Washington, D.C. 20037

If to Buyer:            American Radio Systems Corporation
                        116 Huntington Avenue
                        Boston, MA  02116
                        Attention:  Steven B. Dodge, President
                        Fax:  (617) 375-7575

with a copy
(which shall not
constitute notice) to:  Michael B. Milsom, Vice President & General Counsel
                        American Radio Systems Corporation
                        116 Huntington Avenue
                        Boston, MA  02116
                        Fax:  (617) 375-7550

or to such other or  additional  persons and  addresses  as the parties may from
time to time  designate in a writing  delivered in accordance  with this Section
11.1.

         11.2 Benefit and Binding  Effect.  Neither party hereto may assign this
Agreement  without the prior written  consent of the other party hereto,  except
that Buyer may assign its rights and  obligations  under this  Agreement  to any
affiliated or  unaffiliated  entity,  provided,  however,  that following  which
assignment  Buyer shall remain  liable to Seller for all of Buyer's  obligations
hereunder.  This Agreement shall be binding upon and inure to the benefit of the
parties hereto and their respective successors and permitted assigns.

         11.3 Governing Law. This Agreement  shall be governed,  construed,  and
enforced in accordance with the laws of the State of Ohio.


                                       39


<PAGE>



         11.4 Headings.  The headings  herein are included for ease of reference
only and  shall not  control  or  affect  the  meaning  or  construction  of the
provisions of this Agreement.

         11.5 Gender and Number. Words used herein, regardless of the gender and
number  specifically  used,  shall be deemed and  construed to include any other
gender, masculine, feminine or neuter, and any other number, singular or plural,
as the context required.

         11.6 Entire Agreement.  This Agreement,  all schedules hereto,  and all
documents  and  certificates  to be  delivered  by the parties  pursuant  hereto
collectively  represent the entire understanding and agreement between Buyer and
Seller with respect to the subject matter hereof. All schedules attached to this
Agreement shall be deemed part of this Agreement and incorporated  herein, where
applicable,  as if fully set forth herein.  This Agreement  supersedes all prior
negotiations  between  Buyer and  Seller,  and all  letters  of intent and other
writings related to such  negotiations,  and cannot be amended,  supplemented or
modified  except by an agreement in writing  which makes  specific  reference to
this Agreement or an agreement  delivered  pursuant hereto,  as the case may be,
and  which  is  signed  by the  party  against  which  enforcement  of any  such
amendment, supplement or modification is sought.

         11.7 Waiver of Compliance;  Consents.  Except as otherwise  provided in
this Agreement, any failure of any of the parties to comply with any obligation,
representation,  warranty, covenant, agreement or condition herein may be waived
by the party  entitled  to the  benefits  thereof  only by a written  instrument
signed by the party  granting such waiver,  but such waiver or failure to insist
upon strict compliance with such obligation, representation, warranty, covenant,
agreement  or  condition  shall not  operate  as a waiver of, or  estoppel  with
respect to, any subsequent or other failure. Whenever this Agreement requires or
permits consent by or on behalf of any


40


<PAGE>



party hereto, such consent shall be given in writing in a manner consistent with
the requirements for a waiver of compliance as set forth in this Section 11.7.

         11.8   Severability.   If  any  provision  of  this  Agreement  or  the
application   thereof  to  any  person  or  circumstance  shall  be  invalid  or
unenforceable or any extent, the remainder of this Agreement and the application
of such  provision  to other  persons  or  circumstances  shall not be  affected
thereby and shall be enforced to the greater extent permitted by law.

         11.9  Counterparts.  This  Agreement  may be  signed  in any  number of
counterparts  with the same effect as if the signature on each such  counterpart
were upon the same instrument.

         IN WITNESS  WHEREOF,  this  Agreement  has been  executed  by Buyer and
Seller as of the date first above written.

         SELLER:                     MCMURRAY COMMUNICATIONS


                                     By:     


         BUYER:                      AMERICAN RADIO SYSTEMS
                                     CORPORATION


                                     By:     

                                              Title:

                                       41


<PAGE>




                      SCHEDULES TO ASSET PURCHASE AGREEMENT




1.8               Escrow Agreement

2.3               Allocation of Purchase Price

3.4               Licenses

3.5               Real Property

3.6               Personal property

3.7               Assumed Contracts

3.8               Consents required

3.9               Trademarks; trade names; copyrights

3.10              List of Insurance Policies

3.12              Employee Benefit Plans

3.15              Claims; legal actions

8.2               Opinion of Seller's General and FCC Counsels

8.3               Opinion of Buyer's General Counsel

                                       42




                                                                    Exhibit 10.8
                            TIME BROKERAGE AGREEMENT


         TIME BROKERAGE AGREEMENT, dated as of ____________, 1997 by and between
AMERICAN RADIO SYSTEMS  CORPORATION,  a Delaware corporation ("ARS") and JUPITER
RADIO PARTNERS, a Florida Partnership ("Jupiter").

                              W I T N E S S E T H:

         WHEREAS,  Jupiter  is the  permittee  of  Radio  Station  WTPX-FM  (the
"Station"), which is authorized by the Federal Communications Commission ("FCC")
to operate at 105.5 megahertz in Jupiter, Florida.

         WHEREAS, ARS has expertise in radio station programming and operations.

         WHEREAS,  Jupiter wishes to retain ARS to provide  programming  for the
Station in conformity  with the FCC's policies for time  brokerage  arrangements
and as set  forth  herein,  and ARS  wishes  to avail  itself  of the  Station's
broadcast time in conformity with such FCC policies.

         WHEREAS,  Jupiter has granted ARS an  exclusive  option to purchase the
Station,  and the parties  contemplate that during the term hereof,  if and when
ARS exercises  said option,  the parties will then enter into an asset  purchase
agreement and will request FCC consent to the assignment of the Station  license
from Jupiter to ARS.

         NOW,  THEREFORE,  in  consideration  of the above  recitals  and mutual
promises and covenants herein, the parties, intending to be bound legally, agree
as follows:

                                    Section 1
                             Use of Station Air Time

         1.1 Term. The term of this Agreement  shall be for a period  commencing
on the date on which the Station begins  operating  under program test authority
(the "Commencement  Date"), and terminating on the earliest to occur of: (a) the
closing  date of the  sale  of the  Station  to  ARS;  (b)  one  year  from  the
Commencement  Date; or (c) termination of this Agreement pursuant to Section 6.1
hereof.

         1.2 Scope. During the term hereof,  Jupiter shall make available to ARS
time on the  Station  as set forth in this  Agreement.  ARS shall  deliver  such
programming,  at its expense, to the Station's  transmitter  facilities or other
authorized

                                                       



<PAGE>



remote control point as reasonably  designated by Jupiter.  Subject to Jupiter's
reasonable  approval,  as  set  forth  in  this  Agreement,  ARS  shall  provide
entertainment  programming of its selection,  complete with  commercial  matter,
news, public service announcements and other suitable programming to the Station
up to one hundred sixty-four (164) hours per week. Jupiter may use the remaining
four hours per broadcast  week for the broadcast of its own regularly  scheduled
news, public affairs and other non-entertainment  programming on Sunday mornings
between the hours of 7:00 a.m. and 9:00 a.m.,  or at such other times as Jupiter
and ARS  shall  mutually  agree.  All  time not  reserved  by  Jupiter  shall be
available for use by ARS and no other party.

         1.3  Consideration.  In  consideration  for the  programming  time made
available to ARS  hereunder,  ARS shall pay Jupiter the  monetary  consideration
described in Attachment I hereto.

         1.4  Jupiter's  Operation  of  the  Station.  Jupiter  will  have  full
authority,  power and control over the operations of the Station during the term
of this  Agreement.  Jupiter  will  bear all  responsibility  for the  Station's
compliance with all applicable  provisions of the Communications Act of 1934, as
amended, the rules, regulations and policies of the FCC and all other applicable
laws.  Jupiter shall maintain a main studio, as that term is defined by the FCC,
within the  Station's  principal  community  contour,  and shall comply with the
FCC's  requirements  for  staffing a main  studio.  Jupiter  shall  maintain the
Station's local public inspection file within the community of license and shall
prepare and place in such inspection file its quarterly issues and program lists
on a timely  basis.  Upon  request by Jupiter,  ARS shall  provide  Jupiter with
information concerning any of ARS's programs which Jupiter may desire to include
in the  Station's  quarterly  issues  and  programs  lists.  Jupiter  shall also
maintain  the Station  logs,  receive and respond to  telephone  inquiries,  and
control and oversee any remote  control  point for the  Station.  Jupiter  shall
employ at its expense Station personnel consisting of, at a minimum, a full-time
managerial employee and a non-managerial employee, who will report to and assist
the  managerial  employee  in the  performance  of his or her  duties.  Each  of
Jupiter's employees shall report to and be accountable to Jupiter. Jupiter shall
be  responsible  for the  salaries,  taxes,  insurance and related costs for all
personnel it employs at the Station and shall  maintain  insurance  covering the
Station's  transmission  facilities.  Except as provided in Sections 1.5 and 1.8
herein,  or as the parties may  otherwise  agree in  writing,  Jupiter  shall be
solely  responsible  for all capital and  non-capital,  ordinary  and  customary
operating  expenses of the Station,  including but not limited to maintenance of
the studio and transmitting facility and costs of electricity.

         1.5  ARS  Responsibility.  ARS  shall  be  solely  responsible  for any
expenses incurred in the origination and/or delivery of

                                        2



<PAGE>



programming  it provides to the Station  and for any  publicity  or  promotional
expenses, including, without limitation, ASCAP, BMI and SESAC music license fees
for all programming  provided by ARS. ARS shall employ and be solely responsible
for the salaries,  taxes, insurance and related costs for all personnel employed
by ARS (including,  without limitation,  salespeople,  traffic personnel,  board
operators and  programming  staff).  All personnel shall be subject to Jupiter's
overall  supervision,  consistent  with  ARS's  right to the use of the  Station
facilities pursuant to Section 1.9 hereof. If and when requested by Jupiter, ARS
shall perform,  without charge,  routine monitoring of the Station's transmitter
performance and tower lighting.

         1.6 Contracts.  Jupiter will not enter into any third-party  contracts,
leases or agreements which would bind ARS in any way without ARS's prior written
approval.  ARS  will  not  enter  into  any  third-party  contracts,  leases  or
agreements  which would bind Jupiter in any way without  Jupiter's prior written
approval.

         1.7  Hourly  Credit.  ARS  shall  receive  from  Jupiter,  as a  refund
consisting of a flat rate credit of [$21.39] per hour ("Hourly Credit"), for any
part of the weekly one hundred  sixty-four  (164) hours of programming time that
Jupiter uses to broadcast its own programming including periods during which the
Station  is unable,  for any reason  (except  for ARS's  failure to deliver  its
programming to the Station), to broadcast ARS's programming. Such refunds to ARS
shall be paid within ten (10) days of the end of each month.

         1.8 Station  Operation.  Jupiter  shall  notify ARS in writing at least
five (5) business days prior to (i) making any changes in  management  personnel
of the Station, (ii) entering into any material contractual obligations relating
to the Station,  (iii) purchasing  equipment for the Station, or (iv) making any
other  material  changes in the  operation  of the  Station.  Jupiter  agrees to
purchase  equipment  and other  material and services  which ARS may  reasonably
suggest is necessary for the Station's  operations,  provided that ARS agrees to
reimburse  Jupiter  for all  costs  associated  with such  purchases  including,
without limitation, installation, wiring and similar related costs.

         1.9 Use of Station  Studios.  Jupiter  agrees to provide  ARS with such
access to and use of all of the Station's  facilities  including the studios and
broadcast  equipment,  as ARS may require or reasonably need in order to provide
programming  for the Station and otherwise  perform its  obligations  hereunder;
provided,  however,  that Jupiter shall maintain,  for its sole use,  sufficient
space at the Station's studios for its employees.  Under the overall supervision
of  Jupiter,  ARS shall and may  peacefully  and  quietly  have the full use and
enjoyment  of the  Station's  facilities,  studios and  equipment  free from any
hindrance from any person or persons whomsoever claiming by,

                                        3



<PAGE>



through or under  Jupiter.  ARS shall use the studios and equipment only for the
purpose of producing  programming  for the Station and otherwise  performing its
obligations  hereunder  and  shall at all  times be  subject  to the good  faith
oversight of Jupiter.

                                    Section 2
                 Station Obligations to the Community of License

         2.1 Jupiter's  Authority.  Notwithstanding  any other provision of this
Agreement,  ARS  recognizes  that Jupiter has certain  obligations  to broadcast
programming  to meet the needs and interests of the community of license for the
Station.  On a regular  weekly basis Jupiter shall air specific  programming  on
issues of importance to the local  community.  Nothing in this  Agreement  shall
abrogate the  unrestricted  authority of Jupiter to discharge its obligations to
the  public  and to  comply  with the law,  rules and  policies  of the FCC with
respect to meeting the ascertained needs and interests of the public.

         2.2  Pre-emption  Rights  of  Jupiter.   Although  both  parties  shall
cooperate in the broadcast of emergency  information  over the station,  Jupiter
shall  also  retain  the  right to  interrupt  ARS's  programming  in case of an
emergency or for  programming  which,  in the reasonable  good faith judgment of
Jupiter, is of overriding public importance. Such interruption shall not entitle
ARS to any credits pursuant to Section 1.7 hereof. Jupiter shall also coordinate
with ARS the Station's hourly station  identification  announcements to be aired
in accord with FCC rules.

                                    Section 3
                          Station Programming Policies

         3.1 Programming Policy Statement.  Jupiter has adopted and will enforce
a Broadcast Station  Programming  Policy Statement (the "Policy  Statement"),  a
copy of which is included as Attachment II hereto.  Jupiter may amend the Policy
Statement from time to time upon notice to ARS. ARS agrees and covenants that it
and the  programming  it will provide to the Station will comply in all material
respects with the Policy Statement and with all rules and regulations of the FCC
pertaining to radio broadcast programming. If Jupiter reasonably determines that
a program supplied by ARS does not comply with the Policy Statement, Jupiter may
suspend or cancel such program upon written notice to ARS of such decision.  All
advertising spots and promotional material or announcements shall be produced in
accordance with quality standards established by Jupiter and

                                        4



<PAGE>



shall comply with applicable  federal,  state and local regulations and policies
and the Policy Statement.

         3.2 Jupiter's  Control of Programming.  ARS recognizes that Jupiter has
full authority to control the operation of the Station,  and that such authority
includes,  but is not limited to, the right to reject or refuse such portions of
ARS's  programming  which  Jupiter  reasonably  believes  to be  unsatisfactory,
unsuitable or contrary to the public interest. However, ARS shall have the right
to change the programming  elements and/or format of the programming supplied to
the Station by giving  Jupiter at least  twenty-four  (24) hours' notice of such
changes.

         3.3  Compliance  with  Copyright  Act. ARS  represents  and warrants to
Jupiter that ARS has full authority to broadcast its programming on the Station.
ARS agrees that it will not  broadcast  any  material in  violation  of any law,
rule,  regulation or the Copyright  Act. All music supplied by ARS shall be: (i)
licensed by ASCAP,  SESAC or BMI; (ii) in the public domain; or (iii) cleared at
the source by ARS.  Consistent  with Section 1.2 hereof,  Jupiter will  maintain
ASCAP,  BMI and SESAC licenses as necessary for programming  provided by Jupiter
to the Station.  ARS shall have the exclusive  right to use the  programming ARS
provides to the Station and to authorize its use in any manner.

         3.4 Sale of Advertising. ARS shall retain all revenues from the sale of
advertising time within the programming it provides to the Station. ARS may sell
advertising on the Station in combination  with any other broadcast  stations of
its  choosing,  provided  that  such  combination  of  sales  activities  is  in
compliance  with  applicable  governmental  rules  and  policies.  ARS  shall be
responsible   for  payment  of  the   commissions  due  to  any  national  sales
representative  engaged by it for the  purpose of selling  national  advertising
which is carried  during the  programming  it provides to the  Station.  Jupiter
shall retain all  revenues  from the sale of  advertising  during the hours each
week in which it airs its own non-entertainment  programming, with the exception
provided for certain political advertising set forth in Section 5.2 herein.

         3.5  Payola.  ARS agrees  that it will not  accept  any  consideration,
compensation,  gift or gratuity of any kind whatsoever,  regardless of its value
or form, including, but not limited to, a commission, discount, bonus, material,
supplies or other merchandise, services or labor (collectively "Consideration"),
whether or not  pursuant  to written  contracts  or  agreements  between ARS and
merchants  or  advertisers,  unless the payer is  identified  in the program for
which   Consideration  was  provided  as  having  paid  for  or  furnished  such
Consideration,  in accordance with the  Communications Act and FCC requirements.
At least once each quarter, ARS shall execute and provide Jupiter

                                        5



<PAGE>



with a Payola Affidavit  substantially in the form attached hereto as Attachment
III.

                                    Section 4
                      Indemnification; Challenge before FCC

         4.1  ARS's  Indemnification.  ARS  shall  indemnify  and hold  harmless
Jupiter  from  and  against  any and all  claims,  losses,  costs,  liabilities,
damages,  forfeitures and expenses (including reasonable attorney fees and other
expenses   incidental   thereto)   of  every   kind,   nature  and   description
(collectively, "Damages") resulting from (i) ARS's breach of any representation,
warranty,  covenant or agreement contained in this Agreement, or (ii) any action
taken by ARS or its  employees  and agents with respect to the  Station,  or any
failure by ARS or its  employees  and agents to take any action with  respect to
the Station,  including,  without limitation, all Damages relating to violations
of the Act or any rule, regulation or policy of the FCC, libel, slander,  unfair
competition  or trade  practices,  infringement  of  trademarks,  trade names or
program titles,  violation of rights of privacy,  and infringement of copyrights
and proprietary rights resulting from the broadcast of programming  furnished by
ARS and ARS's  broadcast  and sale of  advertising  time on the  Station.  ARS's
obligation to hold Jupiter  harmless  against the Damages  specified above shall
survive any termination of this Agreement until the expiration of all applicable
statutes of limitation.
         4.2  Jupiter's  Indemnification.   Jupiter  shall  indemnify  and  hold
harmless ARS from and against any and all Damages  resulting  from (i) Jupiter's
breach of any representation,  warranty, covenant or agreement contained in this
Agreement,  or (ii) any action taken by Jupiter or its employees and agents with
respect to the Station, or any failure by Jupiter or its employees and agents to
take any action with respect to the Station, including,  without limitation, all
Damages  relating to violations of the Act or any rule,  regulation or policy of
the FCC, libel, slander, unfair competition or trade practices,  infringement of
trademarks,  trade names or program titles,  violation of rights of privacy, and
infringement of copyrights and proprietary  rights  resulting from the broadcast
of programming  furnished by Jupiter.  Jupiter's obligation to hold ARS harmless
against  the Damages  specified  above shall  survive  any  termination  of this
Agreement until the expiration of all applicable statutes of limitation.

         4.3  Limitation.  Neither  party shall be  entitled to  indemnification
pursuant to this section unless such claim for  indemnification is asserted in a
writing delivered to the other party.

                                        6



<PAGE>



         4.4 Time  Brokerage  Challenge.  If this Agreement is challenged at the
FCC, counsel for Jupiter and counsel for ARS shall jointly defend the Agreement
and the parties' performance thereunder throughout all FCC proceedings, and each
party shall bear its own expenses.  If portions of this Agreement do not receive
the approval of the FCC staff,  then the parties  shall reform the Agreement or,
at ARS's option and expense,  seek  reversal of the staff  decision and approval
from the full Commission on appeal.

                                    Section 5
         Access to ARS Materials; Correspondence; Political Advertising

         5.1  Confidential Review.  Prior to the provision of any
programming  by ARS to the  Station  under this  Agreement,  ARS shall  acquaint
Jupiter with the nature and type of programming to be provided.  Jupiter, solely
for the purpose of ensuring ARS's compliance with applicable laws, FCC rules and
the Policy Statement,  shall be entitled to review at its discretion,  from time
to time on a  confidential  basis,  any  programming  material it may reasonably
request  from  ARS.  ARS  shall  promptly  provide  Jupiter  with  copies of all
correspondence and complaints received from the public (including telephone logs
of any complaints  telephoned in), copies of all program logs and, upon request,
copies of promotional materials.  However, nothing in this section shall entitle
Jupiter to review the internal corporate or financial records of ARS.
         5.2 Political Advertising.  ARS shall cooperate with and assist Jupiter
in complying  with all rules of the FCC  regarding  political  advertising.  ARS
shall promptly supply such  information to Jupiter as may be necessary to comply
with  the  lowest  unit  rate,  equal   opportunities   and  reasonable   access
requirements of federal law. To the extent  reasonably  necessary to assure that
Jupiter meets its political time  obligations  under the  Communications  Act of
1934, as amended,  and the rules and  regulations  of the FCC, ARS shall release
advertising  availabilities  to Jupiter;  provided,  however,  that all revenues
realized by Jupiter as a result of such a release of  advertising  time shall be
immediately paid to ARS.

                                    Section 6
                      Termination and Remedies Upon Default

         6.1  Termination.  In addition to other  remedies  available  at law or
equity and the  provisions  of  Section  1.1  hereof,  either  party  hereto may
terminate this Agreement by written notice to

                                        7



<PAGE>



the other,  provided that the party seeking to terminate is not then in material
default or breach hereof, upon the occurrence of any of the following:

                  (a) this Agreement is declared  invalid or illegal in whole or
substantial part by an order or decree of an administrative  governmental agency
or court of  competent  jurisdiction,  and such order or decree has become final
and no longer subject to further administrative or judicial review;

                  (b) the other party is in material  breach of its  obligations
hereunder  and has failed to cure such breach  within thirty (30) days of notice
from the non-breaching party;

                  (c)  the mutual consent of both parties;

                  (d) there has been a material change in FCC rules, policies or
precedent  that would cause this  Agreement to be in violation  thereof and such
change is in effect and not the  subject of an appeal or further  administrative
review.

         6.2 ARS's  Remedies for  Operational  Deficiencies.  ARS shall have the
following  remedies for  deficiencies in or events related to equipment owned by
Jupiter:

                  (a) If ARS  receives  during the first sixty (60) days of this
Agreement a report of a consulting engineer, chosen by ARS, which concludes that
the  Station is not  operating  within  the  parameters  authorized  by the FCC,
Jupiter shall be obligated, at its expense, to take such steps as are reasonably
necessary to restore the operating parameters of the Station or demonstrate,  by
the use of the report of another consulting engineer, hired at its expense, that
the  operating  parameters  are  not  materially  deficient.  If  the  Station's
operating  parameters  are not  restored  within  thirty (30) days notice of the
operating deficiencies,  then ARS shall be entitled to a full refund, on a daily
basis,  of the Hourly  Credit  amount set forth in Section 1.7 hereof until such
deficiencies  are corrected.  All refunds due ARS hereunder shall be made within
ten (10) days of the end of the month in which the deficiency was detected.

                  (b) If, for a period of five consecutive days or more, Jupiter
reduces the Station's  transmitter  output power by fifty percent (50%) or more,
and, as a result thereof, ARS is required to make rebates and/or other financial
accommodations  to its  advertisers,  ARS may elect to  receive  from  Jupiter a
refund  equal to one half of the Hourly  Credit  amount set forth in Section 1.7
for so long as such power  reduction  continues.  Jupiter  shall make the refund
payments  to ARS  within  ten (10)  days of the end of each  month in which  the
Station's power is reduced.


                                        8



<PAGE>



                  (c) If Jupiter uses an auxiliary or alternate  transmitter for
the Station for a period of five (5) consecutive  days or more and, as a result,
ARS is required to make rebates  and/or other  financial  accommodations  to its
advertisers,  then ARS shall be entitled to a refund which,  for up to the first
30 days of such  operation,  shall be  twenty-five  percent  (25%) of the Hourly
Credit  amount  set  forth  in  Section  1.7 for so long  as such  auxiliary  or
alternate  transmitter  is in use.  Should the use of an  auxiliary or alternate
transmitter  continue for more than thirty (30) days, the refund for such period
shall be equal to fifty  percent  (50%) of the Hourly Credit amount set forth in
Section 1.7 for so long as such  auxiliary or alternate  transmitter  is in use.
Any refunds due ARS  hereunder  shall be made within ten (10) days of the end of
the month in which the auxiliary or alternative transmitter is in use.

                  (d) If, due to damage to or failure of transmission equipment,
the Station is off the air for five (5)  consecutive  days or for a total of one
hundred  twenty  (120) hours  during any thirty  (30) day  period,  ARS shall be
entitled to a full refund,  on a daily basis,  of the Hourly  Credit  amount set
forth in Section 1.7 and such  refund  shall be made within ten (10) days of the
end of the month.

         6.3  Force  Majeure.   Any  failure  or  impairment  of  the  Station's
facilities,  any delay or interruption in the broadcast of programs,  or failure
at any time to furnish  facilities,  in whole or in part, for broadcast,  due to
acts  of  god,  strikes,  lockouts,   material  or  labor  restrictions  by  any
governmental  authority,  civil riot,  floods and any other cause not reasonably
within the control of Jupiter will not render Jupiter  liable to ARS,  except to
the  extent of  allowing  in each such case an  appropriate  refund for time not
provided based upon the Hourly Credit set forth under Section 1.7 and calculated
upon the  length  of time  during  which the  failure  or  impairment  exists or
continues.

         6.4 Other Agreements.  During the term of this Agreement,  Jupiter will
not enter into any other time brokerage,  program  provision,  local  marketing,
management,  joint sales or similar  agreement with any third party with respect
to the Station.

                                    Section 7
                    Representations, Warranties and Covenants

         7.1  Jupiter's  Representations,   Warranties  and  Covenants.  Jupiter
represents and warrants, or, as the case may be, covenants to ARS that:


                                        9



<PAGE>



                  7.1.1.  Jupiter  is  a  partnership  duly  organized,  validly
existing and in good  standing  under the laws of the State of Florida.  Jupiter
has the  partnership  power and authority to execute and deliver this Agreement,
to consummate the transactions contemplated hereby and to take all other actions
required to be taken by it pursuant to the provisions hereof.  This Agreement is
a legal,  valid and binding  obligation  of Jupiter,  enforceable  against it in
accordance with its terms.

                  7.1.2.  Neither the execution  and delivery of this  Agreement
nor the  consummation of the  transactions  contemplated  hereby by Jupiter will
(with or without the giving of notice thereof,  the lapse of time or both):  (i)
conflict with,  result in a breach of, or constitute a default  under,  any law,
judgment,  order, ordinance,  decree, rule, regulation or ruling of any court or
governmental  instrumentality  which is applicable to Jupiter;  or (ii) conflict
with, constitute grounds for termination of, result in a breach of, constitute a
default  under,  or accelerate  or permit the  acceleration  of any  performance
required by the terms of, any material agreement,  instrument, license or permit
to which Jupiter is a party or by which it may be bound.

                  7.1.3 On the Commencement Date, Jupiter will have obtained all
FCC  authorizations  or  permits  necessary  for the  present  operation  of the
Station,  and, within ten days after the  Commencement  Date,  Jupiter will file
with the FCC an  application  for a  broadcast  station  license  to  cover  the
construction permit for the Station.

                  7.1.4  There is not now pending  or, to  Jupiter's  knowledge,
threatened, any action by the FCC or by any party to revoke, cancel, suspend, or
modify adversely any of such permits or authorizations.

                  7.1.5 To Jupiter's  knowledge,  after due inquiry,  Jupiter is
not in material violation of any statute,  ordinance, rule, regulation,  policy,
order or decree of any federal, state or local entity, court or authority having
jurisdiction  over it or the  Station,  which would have an adverse  effect upon
Jupiter,  its assets  utilized in the  operation of the Station,  the Station or
upon Jupiter's ability to perform this Agreement.

                  7.1.6 All reports,  annual  regulatory  fees and  applications
required to be filed with the FCC or any other  governmental body have been, and
during the course of the term of this Agreement or any extension  thereof,  will
be in all material respects complete, accurate and timely filed.

                   7.1.7 The  facilities of the Station are, and during the term
of this Agreement shall remain,  in compliance in all material respects with the
engineering  requirements  set forth in the rules and regulations of the FCC and
in the  licenses,  permits  and  authorizations  issued by the FCC to Jupiter in
connection with the Station.


                                       10



<PAGE>


                  7.1.8 Jupiter has not disposed of, and during the term of this
Agreement,  shall not dispose of,  transfer  or assign any  material  assets and
properties  used and useful in  connection  with the  operation  of the  Station
except with the prior written consent of ARS.

                  7.1.9 Jupiter  shall not knowingly  take any action or omit to
take any action  which  would have an adverse  impact upon  Jupiter,  its assets
utilized in the  operation of the Station,  the Station or Jupiter's  ability to
perform this Agreement.

                  7.1.10  Jupiter  shall pay,  in a timely  fashion,  all of the
non-capital,  ordinary and customary expenses incurred in operating the Station,
including without limitation, lease payments, utilities and taxes.

         7.2 ARS's Representations, Warranties and Covenants. ARS represents and
warrants, or, as the case may be, covenants to Jupiter that:

                  7.2.1. ARS is a corporation  duly organized,  validly existing
and in good  standing  under  the  laws of the  State of  Delaware.  ARS has the
corporate  power and  authority  to  execute  and  deliver  this  Agreement,  to
consummate the  transactions  contemplated  hereby and to take all other actions
required to be taken by it pursuant to the provisions hereof.  This Agreement is
a  legal,  valid  and  binding  obligation  of ARS,  enforceable  against  it in
accordance with its terms.

                  7.2.2.  Neither the execution  and delivery of this  Agreement
nor the consummation of the transactions  contemplated  hereby by ARS will (with
or  without  the  giving of  notice  thereof,  the  lapse of time or both):  (i)
conflict with,  result in a breach of, or constitute a default  under,  any law,
judgment,  order, ordinance,  decree, rule, regulation or ruling of any court or
governmental  instrumentality which is applicable to ARS; or (ii) conflict with,
constitute  grounds for  termination  of,  result in a breach of,  constitute  a
default  under,  or accelerate  or permit the  acceleration  of any  performance
required by the terms of, any material agreement,  instrument, license or permit
to which ARS is a party or by which it may be bound.


                                    Section 8
                                  Miscellaneous

         8.1  Assignment.  This Agreement shall be binding upon and inure to the
benefit of the parties hereto, their successors and

                                       11



<PAGE>



permitted  assigns.  Neither  party may assign its rights  under this  Agreement
without the prior written consent of the other party,  provided,  however,  that
ARS has the absolute  right to assign this  Agreement  and all of its rights and
obligations  hereunder,  following written notice to Jupiter, to an entity under
common control.

         8.2 Call  Letters.  Upon request of ARS and at ARS's  expense,  Jupiter
shall apply to the FCC for  authority  to change the call letters of the Station
to such call letters as ARS shall reasonably designate. Otherwise, Jupiter shall
cooperate  with ARS and  notify  ARS in advance of making any change in the call
letters of the Station.

         8.3  Counterparts.  This  Agreement  may be  executed  in  one or  more
counterparts, each of which will be deemed an original but all of which together
will constitute one and the same instrument.

         8.4  Jupiter's  Compliance  with  47  C.F.R.  ss.73.3555(a)(2)(ii).  By
executing this  Agreement,  Jupiter  hereby  certifies that for the term of this
Agreement,  it shall maintain  ultimate  control over the Station's  facilities,
including  specifically  control over the  Stations's  finances,  personnel  and
programming, and nothing herein shall be interpreted as depriving Jupiter of the
power or right of such ultimate control.

         8.5 ARS's Compliance with 47 C.F.R. ss.73.3555(a)(2)(ii).  By executing
this Agreement, ARS hereby certifies that this Agreement complies with the FCC's
restrictions on local and national multiple station ownership set out in Section
73.3555(a)(1) and (e) (1) of the FCC's rules.

         8.6  Payment of Legal  Fees.  Each party  shall pay its own  reasonable
legal fees and related  expenses  incurred in connection with the negotiation of
this Agreement.

         8.7 Entire Agreement.  This Agreement and the Attachments hereto embody
the entire  agreement  and  understanding  of the  parties  with  respect to the
matters  provided  for  herein  and  supersede  any  and all  prior  agreements,
arrangements  and  understandings  relating to matters  provided for herein.  No
amendment,  waiver of  compliance  with any  provision or condition  hereof,  or
consent  pursuant to this  Agreement  will be effective  unless  evidenced by an
instrument in writing signed by the parties.
         8.8 Taxes.  Jupiter and ARS shall each pay its own ad valorem taxes, if
any, which may be assessed on such party's respective  personal property for the
periods that such items are owned by such party. Each party shall be responsible
for any

                                       12



<PAGE>



sales tax imposed on advertising  aired during the programming  provided by that
party.

         8.9  Headings.  The  headings  are for  convenience  only  and will not
control  or  affect  the  meaning  or  construction  of the  provisions  of this
Agreement.

         8.10 Governing  Law. The  obligations of Jupiter and ARS are subject to
applicable federal, state and local law, rules and regulations,  including,  but
not limited to, the  Communications  Act of 1934, as amended,  and the Rules and
Regulations of the FCC. The  construction  and performance of the Agreement will
be governed by, and construed  and enforced in  accordance  with the laws of the
State of Florida, without reference to its principles of conflicts of law.

         8.11 Notices. All notices and other  communications  hereunder shall be
in writing and shall be deemed to have been duly  delivered  and received (i) on
the date of personal delivery,  if personally  delivered;  (ii) on the fifth day
after  deposit in the U.S.  mail,  if mailed by  registered  or certified  mail,
postage prepaid and return receipt requested; (iii) on the day after delivery to
a recognized  overnight courier service,  if sent for next morning delivery;  or
(iv) when dispatched by facsimile  transmission (with the facsimile transmission
confirmation being deemed conclusive evidence of such dispatch); if intended for
Jupiter, shall be addressed as follows:

                  Jupiter Radio Partners
                  c/o Ms. Patricia S. Dahlin
                  Vice President/Controller
                  InterMart Broadcasting
                  4810 Deltona Drive
                  Punta Gorda, FL 33950
                  Facsimile:  941/639-6742

with a copy to:

                  Howard A. Topel, Esquire
                  Fleischman and Walsh, L.L.P.
                  1400 16th Street, NW
                  Washington, DC 20036
                  Facsimile:  202/745-0916

or at such other  address of which Jupiter shall have given notice to ARS in the
manner herein provided;

if intended for ARS, shall be addressed as follows:

                  American Radio Systems Corporation
                  116 Huntington Avenue
                  Boston, MA   02116
                  Attn:  Michael B. Milsom, Esquire
                  Facsimile: 617/375-7575


                                       13



<PAGE>

  
with a copy to:

                  Howard J. Braun, Esq.
                  Rosenman & Colin LLP
                  1300 19th Street, N.W.
                  Suite 200
                  Washington, DC 20036
                  Facsimile: 202/429-0046

or at such other  address of which ARS shall have given notice to Jupiter in the
manner herein provided.

         8.12   Severability.   If  any  provision  of  this  Agreement  or  the
application  thereof  to  any  person  or  circumstances  shall  be  invalid  or
unenforceable to any extent, the remainder of this Agreement and the application
of such  provision  to other  persons  or  circumstances  shall not be  affected
thereby and shall be enforced to the greatest extent permitted by law.

         8.13  Specific  Performance.  The parties  recognize  that in the event
Jupiter  should  refuse to  perform  under  the  provisions  of this  Agreement,
monetary damages alone will not be adequate.  ARS shall therefore be entitled to
seek specific  performance of all terms of this  Agreement.  In the event of any
action to enforce this  Agreement,  Jupiter hereby waives the defense that there
is adequate remedy at law.

         8.14  Arbitration.  Any  dispute  arising  out of or  related  to  this
Agreement  that  Jupiter  and ARS are unable to resolve by  themselves  shall be
settled by arbitration  in Jupiter,  Florida,  by a panel of three  arbitrators.
Jupiter and ARS shall each  designate one  disinterested  arbitrator and the two
arbitrators  designated shall select the third arbitrator.  The persons selected
as  arbitrators  need  not be  professional  arbitrators,  and  persons  such as
lawyers,  accountants and bankers shall be acceptable.  The arbitration  hearing
shall be conducted in accordance  with the commercial  arbitration  rules of the
American  Arbitration  Association.  The  written  decision of a majority of the
arbitrators  shall be final  and  binding  on  Jupiter  and ARS.  The  costs and
expenses of the arbitration proceeding shall be assessed between Jupiter and ARS
in a manner to be decided by a majority of the  arbitrators,  and the assessment
shall be set forth in the decision and award of the arbitrators. Judgment on the
award,  if it is not paid within thirty days, may be entered in any court having
jurisdiction over the matter. No action at law or in equity based upon any claim
arising out of or related to this Agreement  shall be instituted in any court by
Jupiter or ARS against  the other  except:  (i) an action to compel  arbitration
pursuant to this Section, (ii) an action to enforce the award of

                                       14



<PAGE>



the arbitration panel rendered in accordance with this Section;  or (iii) a suit
for specific performance pursuant to Section 8.13.

             IN WITNESS WHEREOF, the parties hereto have executed this Agreement
the day and year first above written.


                                            JUPITER RADIO PARTNERS

                                            By:  InterMart Broadcasting, General
                                                     Managing Partner



                                                     By:_______________________
                                                        Patricia S. Dahlin
                                                        Vice President


                                            AMERICAN RADIO SYSTEMS CORPORATION


                                            By:________________________________
                                               Name:
                                               Title:



                                       15



<PAGE>



                                  ATTACHMENT I

                                  Consideration

             Jupiter shall be entitled to a monthly fee of Fifteen  Thousand Two
Hundred  Dollars  ($15,200)  (the "TBA Fee") during the term of this  Agreement.
However,  on the Commencement Date, ARS shall pay Jupiter the sum of One Hundred
Eighty-Two Thousand Four Hundred Dollars ($182,400.00),  representing payment of
the TBA Fee in advance for twelve  months  (the "Total TBA Fee").  ARS shall pay
the Total TBA Fee by wire transfer of federal funds to an account  designated in
writing by Jupiter.

             If this  Agreement is  terminated by either party before the end of
the twelfth month from the  Commencement  Date,  Jupiter shall refund to ARS the
pro  rata  portion  of the  Total  TBA Fee  allocable  to the  remainder  of the
twelve-month period (the "TBA Refund"). If such termination results from ARS and
Jupiter's  consummation  of an  agreement  pursuant to which ARS  purchases  the
assets of the  Station  from  Jupiter,  Jupiter  shall pay the TBA Refund on the
closing date under said  agreement.  If this Agreement  terminates for any other
reason prior to the end of the twelfth  month,  Jupiter shall pay the TBA Refund
to ARS within 30 days of the termination date.


                                       16



<PAGE>



                                  ATTACHMENT II

                          Programming Policy Statement


         ARS agrees to cooperate with Jupiter in the broadcasting of programs of
the highest possible  standard of excellence and for this purpose to observe the
following  regulations  in the  preparation,  writing  and  broadcasting  of its
programs.

                  I.       No  Plugola or Payola.  The  mention of any  business
                           activity or "plug" for any commercial,  professional,
                           or other related endeavor,  except where contained in
                           an  actual  commercial  message  of  a  sponsor,   is
                           prohibited.

                  II.      No Lotteries.  Announcements  giving any  information
                           about  lotteries  or games  prohibited  by federal or
                           state law or regulation are prohibited.

                  III.     Election Procedures. At least ninety (90) days before
                           the start of any  primary or election  campaign,  ARS
                           will clear with  Jupiter's  general  manager the rate
                           ARS will charge for the time to be sold to candidates
                           for the public office and/or their supporters to make
                           certain that the rate charged is in conformance  with
                           the applicable law and station policy.

                  IV.      Required  Announcements.  ARS shall  broadcast (i) an
                           announcement in a form satisfactory to Station at the
                           beginning  of each  hour to  identify  WTPX,  (ii) an
                           announcement at the beginning and end of each program
                           to indicate  that program time has been  purchased by
                           ARS,  and (iii) any other  announcements  that may be
                           required by law, regulation, or Station policy.

                  V.       Commercial  Recordkeeping.  ARS shall not receive any
                           consideration   in   money,   goods,   services,   or
                           otherwise,   directly  or  indirectly  (including  to
                           relatives)  from  any  persons  or  company  for  the
                           presentation  of any  programming  over  the  Station
                           without   reporting   the  same  in  advance  to  and
                           receiving  the prior written  consent from  Jupiter's
                           general manager.  No commercial messages ("plugs") or
                           undue   references   shall  be  made  in  programming
                           presented  over  station  to  any  business  venture.
                           profit making activity, or other interest (other than
                           noncommercial  announcements for bona fide charities,
                           church activities or other public service activities)
                           in  which  ARS  (or  anyone   else)  is  directly  or
                           indirectly  interested  without  the same having been
                           approved  in  advance  by the  general  manager/chief
                           engineer  and  such  broadcast  being  announced  and
                           logged and sponsored.


                                       17



<PAGE>



                  VI.      No  Illegal   Announcements.   No   announcements  or
                           promotion  prohibited  by  federal  or  state  law or
                           regulation  of any lottery or game shall be made over
                           the Station. Any game, contest, or promotion relating
                           to or to be presented  over the Station must be fully
                           stated and  explained  in advance to  Jupiter,  which
                           reserves the right in its sole  discretion  to reject
                           any game, contest, or promotion.

                  VII.     Jupiter Discretion Paramount.  In accordance with the
                           Jupiter's responsibility under the Communications Act
                           of 1934, as amended, and the Rules and Regulations of
                           the Federal  Commissions,  Jupiter reserves the right
                           to reject or terminate any advertising proposed to be
                           presented or being  presented  over the Station which
                           is in  conflict  with  Jupiter's  policy  or which in
                           Jupiter's  or its  general  manager/chief  engineer's
                           sole judgment would not serve the public interest.


                  Jupiter may waive any of the foregoing regulations in specific
instances,  if, in its  opinion,  good  broadcasting  in the public  interest is
served.

                  In any case where questions of policy or interpretation arise,
ARS should submit the same to Jupiter for decision before making any commitments
in connection therewith.






                                      - 2 -

                                                     



<PAGE>



                                 ATTACHMENT III

                            FORM OF PAYOLA AFFIDAVIT



City of_________________      )
County of_______________      )      ss.
State of ________________     )

                          ANTI-PAYOLA/PLUGOLA AFFIDAVIT


____________________________ being first duly sworn, deposes and
says as follows:

1.           He/she is _________________ for _____________________. (Position)

2.           He/she has acted in the above capacity since _________.

3.           No  matter  has been  broadcast  by  Station  __________  for which
             service, money or other valuable consideration has been directly or
             indirectly  paid,  or promised  to, or  charged,  or  accepted,  by
             him/her from any person,  which matter at the time so broadcast has
             not been announced or otherwise  indicated as paid for or furnished
             by such person.

4.           So far as he/she is aware,  no matter has been broadcast by Station
             _______ for which service,  money, or other valuable  consideration
             has been directly or  indirectly  paid, or promised to, or charged,
             or accepted by Station  _______ in  furnishing  programs,  from any
             person,  which  matter  at the  time  so  broadcast  has  not  been
             announced or  otherwise  indicated as paid for or furnished by such
             person.

5.           In future, he/she will not pay, promise to pay, request, or receive
             any service, money, or any other valuable consideration,  direct or
             indirect, from a third party, in exchange for the influencing of or
             the  attempt to  influence,  the  preparation  of  presentation  or
             broadcast matter on Station ________.

6.           Nothing  contained herein is intended to, or shall prohibit receipt
             or acceptance of anything with the expressed knowledge and approval
             of my employer,  but  henceforth any such approval must be given in
             writing by someone expressly authorized to give such approval.

7.           He/she,  his/her spouse and his/her  immediate family do____ do not
             ____ have any  present  direct or  indirect  ownership  interest in
             (other than an investment in a corporation  whose stock is publicly
             held),  serve as an officer or director of, whether with or without
             compensation, or

                                       


<PAGE>



             serve as an employee of, any person, firm or corporation
             engaged in:

             1.            The publishing of music;

             2.            The production, distribution (including wholesale
                           and retail sales outlets), manufacture or
                           exploitation of music, films, tapes, recordings or
                           electrical transcriptions of any program material
                           intended for radio broadcast use;

             3.            The exploitation, promotion, or management of
                           persons rendering artistic, production and/or
                           other services in the entertainment field;

             4.            The ownership or operation of one or more radio or
                           television stations;

             5.            The wholesale or retail sale of records intended
                           for public purchase;

             6.            Advertising on Station ______, or any other
                           station owned by its licensee (excluding nominal
                           stockholdings in publicly owned companies).

8.           The facts and circumstances relating to such interest are
             none ________ as follows_____:

             _________________________________________________________

             _________________________________________________________

             _________________________________________________________






                                                _______________________________
                                                              Affiant

Subscribed and sworn to before me 
this _____ day of______________ 199___.


_______________________________________
Notary Public

My Commission expires: __________________





                                      - 2 -

                                                      



                                                                   EXHIBIT 10.9


                            ASSET PURCHASE AGREEMENT


                                     between


                           GREATER BOSTON RADIO, INC.


                                       and


                       AMERICAN RADIO SYSTEMS CORPORATION





                            Dated as of May 14, 1997















<PAGE>




<TABLE>
<CAPTION>
                                TABLE OF CONTENTS

                                                                                                             Page
<S>                                                                                                              <C>
ARTICLE ONE.......................................................................................................1
     1.1.  "Affiliate"............................................................................................1
     1.2.  "Ancillary Agreements".................................................................................1
     1.3.  "Closing Date".........................................................................................1
     1.4.  "Code".................................................................................................1
     1.5.  "Communications Act"...................................................................................1
     1.6.  "Environmental Laws"...................................................................................1
     1.7.  "Equipment"............................................................................................1
     1.8.  "Escrow Agreement".....................................................................................2
     1.9.  "FCC Application"......................................................................................2
     1.10.  "FCC Licenses"........................................................................................2
     1.11.  "Final Order".........................................................................................2
     1.12.  "Governmental Authorizations".........................................................................2
     1.13.  "Hazardous Substance".................................................................................2
     1.14.  "HSR Act".............................................................................................2
     1.15.  "Intellectual Properties".............................................................................2
     1.16.  "Liens"...............................................................................................3
     1.17.  "LMA".................................................................................................3
     1.18.  "Material Adverse Effect".............................................................................3
     1.19.  "Permitted Liens".....................................................................................3
     1.20.  "Station".............................................................................................3
     1.21.  "Tax".................................................................................................3
     1.22.  "Transfer Taxes"......................................................................................3

ARTICLE TWO

     Purchase and Sale of Assets; Assumption of Liabilities.......................................................4
     2.1.  Transfer of Assets.....................................................................................4
              (a)  FCC Licenses and Other Governmental Authorizations.............................................4
              (b)  Personal Property..............................................................................4
              (c)  Real Property..................................................................................4
              (d)  Agreements.....................................................................................4
              (e)  Records........................................................................................4
              (f)  Accounts and Notes Receivable..................................................................4
              (g)  Prepaid Expenses...............................................................................4




                                       i


<PAGE>






                                                                                                      Page

     2.2.  Excluded Assets...............................................................................5
     2.3.  Instruments of Conveyance and Transfer........................................................5
     2.4.  Further Assurances............................................................................6
     2.5.  Assumption of Liabilities.....................................................................6

ARTICLE THREE

     Closing; Payment of Purchase Price..................................................................6
     3.1.  Closing Date..................................................................................6
     3.2.  Purchase Price and Payment....................................................................6
     3.3. Appraisal, Purchase Price Allocation and Tax Reporting.........................................7

ARTICLE FOUR

     Representations and Warranties......................................................................7
     4.1.  Representations and Warranties of Seller......................................................7
              (a)  Due Organization; Good Standing and Power.............................................8
              (b)  Authorization and Validity of Agreement...............................................8
              (c)  Governmental Approvals; Conflicts.....................................................8
              (d)  Title to Properties; Absence of Liens.................................................9
              (e)  Delivery and Validity of Contracts....................................................9
              (f)  Equipment.............................................................................9
              (g)  Legal Proceedings....................................................................10
              (h)  Insurance............................................................................10
              (i)  Intellectual Properties..............................................................10
              (j)  FCC Licenses and Other Governmental Authorizations...................................10
              (k)  Conduct of Business in Compliance with Regulatory Requirements.......................11
              (l)  Taxes................................................................................11
              (m)  Personnel Information................................................................11
              (n)  Environmental Matters................................................................11
              (o)  Certain Fees.........................................................................11
              (p)  Transactions with Affiliates.........................................................12
              (q)  Conduct in the Ordinary Course.......................................................12
              (r)  Disclosure...........................................................................12
     4.2.  Representations and Warranties of Buyer......................................................12
              (a)  Due Organization; Good Standing and Power............................................12
              (b)  Authorization and Validity of Agreement..............................................12
              (c)  Governmental Approvals; Conflicts....................................................13
              (d)  Legal Proceedings....................................................................13
              (e)  Financial Capacity...................................................................13
              (f)  Qualification........................................................................14
              (g)  Certain Fees.........................................................................14





                                       ii

<PAGE>






                                                                                                      Page

     4.3.  Acknowledgment of Buyer......................................................................14
     4.4.  Expiration of Representations and Warranties.................................................14

ARTICLE FIVE

     Covenants Prior to Closing.........................................................................15
     5.1.  Access to Information Concerning Properties and Records......................................15
     5.2.  Conduct of the Business of the Station Pending the Closing...................................15
     5.3.  Further Actions..............................................................................16
     5.4.  FCC Licenses.................................................................................17
     5.5.  Buyer Qualification..........................................................................17
     5.6.  Station's Employees..........................................................................17
     5.7.  Environmental Due Diligence..................................................................18
     5.8.  Supplements to Disclosure....................................................................18

ARTICLE SIX

     Conditions Precedent...............................................................................18
     6.1.  Conditions Precedent to Obligations of Both Parties..........................................18
              (a)  No Injunction, etc...................................................................18
              (b)  Antitrust Matters....................................................................18
              (c)  FCC Matters..........................................................................19
     6.2.  Conditions Precedent to Obligations of Buyer.................................................19
              (a)  Accuracy of Representations and Warranties of Seller.................................19
              (b)  Performance of Agreements............................................................19
              (c)  No Adverse Modification of FCC Licenses..............................................19
              (d)  Officer's Certificate................................................................20
              (e)  Opinions.............................................................................20
              (f)  Actions and Proceedings..............................................................20
              (g)  Third-Party Consents.................................................................20
              (h)  Payment of Indebtedness; Financing Statements........................................20
              (i)  Deliveries...........................................................................20
     6.3.  Conditions Precedent to Obligations of Seller................................................21
              (a)  Accuracy of Representations and Warranties of Buyer..................................21
              (b)  Performance of Agreements............................................................21
              (c)  Officer's Certificate................................................................21
              (d)  Instruments of Assumption............................................................21
              (e)  Opinion..............................................................................22
              (f)  Actions and Proceedings..............................................................22
              (g)  Deliveries...........................................................................22





                                      iii


<PAGE>






                                                                                                      Page

ARTICLE SEVEN

     Indemnification....................................................................................22
     7.1.  Indemnification by Seller....................................................................22
              (a)  General..............................................................................22
              (b)  Limitation on Indemnification........................................................23
              (c)  Exclusive Remedy.....................................................................23
     7.2.  Indemnification by Buyer.....................................................................23
              (a)  General..............................................................................23
              (b)  Limitation on Indemnification........................................................24
              (c)  Exclusive Remedy.....................................................................24
     7.3.  Indemnification Procedures...................................................................24

ARTICLE EIGHT

     Termination........................................................................................25
     8.1.  General......................................................................................25
     8.2.  No Liabilities in Event of Termination.......................................................26

ARTICLE NINE

     Post-Closing Covenants.............................................................................27
     9.1.  Access to Books and Records..................................................................27
     9.2.  Further Agreements...........................................................................27
     9.3.  Financial Statements.........................................................................27

ARTICLE TEN

     Miscellaneous......................................................................................27
     10.1.  Public Announcements........................................................................27
     10.2.  Expenses....................................................................................28
     10.3.  Transfer Taxes..............................................................................28
     10.4.  Notices.....................................................................................28
     10.5.  Entire Agreement............................................................................29
     10.6.  Assignment..................................................................................29
     10.7.  No Third-Party Beneficiaries................................................................30
     10.8.  Amendment; Waiver...........................................................................30
     10.9.  Interpretation..............................................................................30
     10.10.  Severability...............................................................................30
     10.11.  Counterparts...............................................................................31
     10.12.  Governing Law; Jurisdiction................................................................31

</TABLE>







                                       iv

<PAGE>


                         LIST OF EXHIBITS AND SCHEDULES

Exhibit A                  -        Opinion of Barbara Burns
Exhibit B                  -        Opinion of Schwartz, Woods & Miller
Exhibit C                  -        Opinion of Michael B. Milsom

Schedule 2.1(a)(i)         -        FCC Licenses
Schedule 2.1(a)(ii)        -        Governmental Authorizations
Schedule 2.1(b)   -        Equipment
Schedule 2.1(c)   -        Real Property
Schedule 2.1(d)   -        Contracts and Agreements
Schedule 2.2(h)   -        Excluded Assets
Schedule 4.1(c)   -        Filings, Consents and Approvals
Schedule 4.1(d)   -        Liens
Schedule 4.1(e)   -        Validity of Contracts and Agreements
Schedule 4.1(f)   -        Equipment Not in Satisfactory Condition
Schedule 4.1(g)   -        Legal Proceedings
Schedule 4.1(h)   -        Insurance
Schedule 4.1(j)   -        Proceedings Against the FCC Licenses
Schedule 4.1(m)   -        Personnel Information
Schedule 4.1(p)   -        Affiliate Transactions
Schedule 4.1(q)   -        Certain Changes
Schedule 6.2(g)   -        Material Contracts


<PAGE>

                            ASSET PURCHASE AGREEMENT


                  ASSET PURCHASE  AGREEMENT,  dated as of May 14, 1997,  between
Greater  Boston Radio,  Inc., a Delaware  corporation  ("Seller"),  and American
Radio Systems Corporation, a Delaware corporation ("Buyer").

                  NOW,  THEREFORE,  in  consideration of the premises and of the
mutual covenants and agreements hereinafter set forth, the parties hereto hereby
agree as follows:


                                   ARTICLE ONE

                  1.1.  "Affiliate"  shall  mean  a  person  that  directly,  or
indirectly through one or more intermediaries, controls, or is controlled by, or
is under common control with, the person specified.

                  1.2. "Ancillary  Agreements" shall mean the LMA and the Escrow
Agreement.

                  1.3. "Closing Date" shall mean the actual time and date of the
Closing.

                  1.4.  "Code" shall mean the Internal  Revenue Code of 1986, as
amended,  together with all  regulations  and rulings  issued  thereunder by any
govern mental authority.

                  1.5. "Communications Act" shall mean the Communications Act of
1934, as amended, and the published rules and regulations thereunder.

                  1.6.  "Environmental  Laws" shall mean all applicable federal,
state and local laws and regulations  relating to the pollution or protection of
the  environment,   including  laws  and  regulations   relating  to  emissions,
discharges,  releases or  threatened  releases of  pollutants,  contaminants  or
hazardous  or toxic  materials  or  wastes  into  ambient  air,  surface  water,
groundwater  or lands or  otherwise  relating to the manu  facture,  processing,
distribution,  use,  treatment,  storage,  disposal,  transport  or  handling of
pollutants, contaminants or hazardous or toxic materials or waste.

                  1.7.   "Equipment"   shall  mean  all  equipment,   furniture,
furnishings,  fixtures and other tangible  personal  property listed on Schedule
2.1(b) hereto, together







<PAGE>



with any replacements  thereof or additions thereto made between the date hereof
and the Closing Date, less any items used, consumed, or expended in the ordinary
course of business consistent with past practice between the date hereof and the
Closing Date.

                  1.8. "Escrow Agreement" shall mean the Escrow Agreement, dated
as of the date hereof, among Buyer, Seller and the Escrow Agent.

                  1.9.  "FCC   Application"   shall  mean  the   application  or
applications  that  Seller and Buyer must file with the  Federal  Communications
Commission  (the "FCC")  requesting its written consent to the assignment of the
FCC Licenses from Seller to Buyer.

                  1.10.  "FCC  Licenses"   shall  mean  licenses,   permits  and
authorizations that have been issued by the FCC for use by the Station listed on
Schedule 2.1(a)(i) hereto.

                  1.11.  "Final  Order"  shall mean action which shall have been
taken by the FCC  (including  action duly taken by the FCC's staff,  pursuant to
delegated authority) (i) which shall not have been reversed,  stayed,  enjoined,
set aside,  annulled or suspended,  (ii) with respect to which no timely request
for stay, petition for re hearing,  appeal or certiorari or sua sponte action of
the FCC with comparable effect shall be pending,  and (iii) as to which the time
for filing any such request,  petition,  appeal, certiorari or for the taking of
any  such  sua  sponte  action  by the  FCC  shall  have  expired  or  otherwise
terminated.

                  1.12.  "Governmental  Authorizations"  shall  mean  all  other
licenses,  permits,  consents,  approvals,  authorizations,  qualifications  and
orders of governmental authorities listed on Schedule 2.1(a)(ii) hereto.

                  1.13.  "Hazardous Substance" shall mean any toxic or hazardous
substance  that is regulated by or under  authority  of any  Environmental  Law,
including any asbestos or polychlorinated biphenyls.

                  1.14. "HSR Act" shall mean the Hart-Scott-Rodino  Antitrust Im
provement Act of 1976, as amended, and the rules and regulations thereunder.

                  1.15.  "Intellectual  Properties"  shall mean all  trademarks,
tradenames,  service  marks,  copyrights,   patents,  jingles,  slogans,  visual
materials,  logos and existing promotional  materials registered with the United
States Patent and Trademark Office or the United States Copyright Office, as the
case may be, or any similar state




                                       2


<PAGE>



trademark office, or any application  therefor,  in connection with the business
and operation of the Station.

                  1.16.   "Liens"  shall  mean  all  claims,   liens,   security
interests,  charges,  leases,  encumbrances,  licenses or sublicenses  and other
restrictions of any kind and nature.

                  1.17. "LMA" shall mean the Time Brokerage Agreement,  dated as
of the date hereof, between Seller and Buyer.

                  1.18.  "Material Adverse Effect" shall mean a material adverse
effect on the  business,  financial  condition or results of  operations  of the
Station or the ability of Seller to  consummate  the  transactions  contemplated
hereby or by the Ancillary Agreements.

                  1.19. "Permitted Liens" shall mean Liens for Taxes not yet due
and payable or being contested in good faith by appropriate  proceedings,  Liens
of landlords, carriers, warehousemen,  mechanics and materialmen incurred in the
ordinary  course of business  for sums not yet due,  Liens  incurred or deposits
made  in  the  ordinary   course  of  business  in   connection   with  workers'
compensation,  un employment insurance and other types of social security, or to
secure the  performance  of  statutory  obligations,  surety  bonds,  leases and
similar obligations and such other Liens,  imperfections of title, easements and
pledges,  if any,  as do not  materially  interfere  with the present use of the
Assets encumbered thereby.

                  1.20.  "Station"  shall mean radio  station  WNFT(AM),  Boston
Massachusetts.

                  1.21.  "Tax"  shall mean any tax,  duty,  fee,  levy,  impost,
charge or  assessment  imposed  by any  governmental  authority  (including  all
interest and penalties thereon and additions thereto, whether disputed or not).

                  1.22. "Transfer Taxes" shall mean any sales, use, value added,
documentary, stamp, gross receipts, registration,  transfer, conveyance, excise,
recording, license and other similar Taxes.





                                       3



<PAGE>



                                   ARTICLE TWO

             Purchase and Sale of Assets; Assumption of Liabilities

                  2.1.  Transfer  of Assets.  Upon the terms and  subject to the
conditions of this Agreement,  on the Closing Date,  Seller shall sell,  convey,
assign, transfer and deliver to Buyer, and Buyer shall purchase and acquire from
Seller,  all of the assets of Seller  relating to the Station  free and clear of
all Liens, except for Permitted Liens, except as provided in Section 2.2 hereof,
including, but not limited to, the following (collectively, the "Assets"):

                  (a) FCC Licenses and Other  Governmental  Authorizations.  (i)
         Subject  to  prior  FCC  approval,   the  FCC  Licenses  and  (ii)  the
         Governmental Author izations;

                  (b) Personal Property.  The Equipment,  and all warranties and
         guar antees,  if any,  express or implied,  existing for the benefit of
         Seller in connec tion with the Equipment to the extent assignable;

                  (c) Real  Property.  The real  property  described on Schedule
         2.1(c) hereto;

                  (d)   Agreements.   All  contracts,   commitments   and  other
         agreements  listed on Schedule  2.1(d) hereto and all other  contracts,
         commitments  and other  agreements  entered into by Seller  between the
         date hereof and the Closing Date in accordance  with Section 5.2 hereof
         or the LMA;

                  (e) Records. An original or a copy of all files, records, logs
         and  program  materials  maintained  by Seller at the  Station  and all
         proprietary information, technical information and data, maps, computer
         discs and tapes, plans, diagrams, blueprints and schematics,  including
         filings with the FCC;

                  (f)  Accounts  and Notes  Receivable.  All  accounts and notes
         receivable  of Seller  arising out of or relating to the Station  after
         12:01 a.m.,  local time, on the date of the  effectiveness  of the LMA;
         and

                  (g)  Prepaid  Expenses.   All  prepaid   operating   expenses,
         deposits,  and warranty  rights of Seller arising out of or relating to
         the  Station  after  12:01  a.m.,  local  time,  on  the  date  of  the
         effectiveness of the LMA.



                                       4




<PAGE>



                  2.2.  Excluded  Assets.  Notwithstanding  Section  2.1 hereof,
Buyer and Seller  expressly  understand  and agree that  Seller  shall not sell,
convey, assign, transfer or deliver to Buyer the following assets (collectively,
the "Excluded Assets"):

                  (a) All cash, cash  equivalents,  bank deposits and securities
         owned by or for the benefit of Seller;

                  (b) All accounts and notes receivable of Seller arising out of
         or relating to the business and operation of the Station prior to 12:01
         a.m., local time, on the date of the effectiveness of the LMA;

                  (c) All prepaid  operating  expenses,  deposits,  and warranty
         rights  of  Seller  arising  out of or  relating  to the  business  and
         operation of the Station  prior to 12:01 a.m.,  local time, on the date
         of the effectiveness of the LMA;

                  (d) Any rights of Seller to any refunds (and interest thereon)
         of Taxes and any  deposits  of Seller with any  governmental  authority
         relating to Taxes;

                  (e) All insurance policies of Seller relating to the Assets or
         the business or operations of the Station;

                  (f) All  books and  records  pertaining  to the  organization,
         existence or  capitalization of Seller and all books and records Seller
         is required by law to retain;

                  (g) The names and marks "Greater Media",  "Greater Boston" and
         the "G" logo,  whether alone or in combination  with one or more words,
         in any case  including any related or similar trade names,  trademarks,
         service  marks,  call  letters  or  logos  to the  extent  the same may
         incorporate  such  names,  marks,  logos,  words  or  initials  or  any
         variation thereof and all goodwill associated with the foregoing; and

                  (h) (i) Any  contracts,  commitments  or other  agreements  of
         Seller not expressly  assumed by Buyer and (ii) all other assets listed
         on Schedule 2.2(h) hereto.

                  2.3.  Instruments of Conveyance  and Transfer.  On the Closing
Date,  Seller shall: (a) deliver to Buyer such quitclaim  deeds,  bills of sale,
endorsements,  consents,  assignments, and other good and sufficient instruments
of conveyance  and  assignment as shall be effective to vest in Buyer all right,
title and  interest  of Seller in and to the Assets free and clear of all Liens,
except Permitted Liens, and (b) deliver



                                       5



<PAGE>



to Buyer (or  cause to be filed at the  Station)  copies  of all the  contracts,
commitments,  agreements,  files, records,  books and other data included in the
Assets.

                  2.4. Further  Assurances.  From time to time after the Closing
Date,  Seller shall execute and deliver such other instruments of conveyance and
assignment and take such other actions as Buyer  reasonably may request in order
to convey, assign, transfer and deliver to Buyer any of the Assets.

                  2.5.  Assumption  of  Liabilities.  Buyer  shall not assume or
undertake  to  pay,   satisfy  or  discharge  any  liabilities   (including  any
liabilities arising in connection with any litigation), obligations, commitments
or  responsibilities  of Seller except for those  arising  under the  contracts,
commitments and other agreements referred to in Section 2.1(d) hereof, and other
contracts,  commitments  and  agreements  assumed  under the LMA,  and then with
respect to any such contract,  commitment or agreement  only those  liabilities,
obligations,  commitments and responsibilities  accruing after the date on which
such contract,  commitment or agreement is assumed  (collectively,  the "Assumed
Liabilities").


                                  ARTICLE THREE

                       Closing; Payment of Purchase Price

                  3.1.   Closing   Date.   The  closing   with  respect  to  the
transactions pro vided for in this Agreement (the "Closing") shall take place at
the offices of Debevoise & Plimpton,  875 Third Avenue,  New York,  New York, at
10:00 a.m., local time, no later than the fifth business day following the later
to  occur  of (a) the day on  which  the  action  by the  FCC  granting  the FCC
Application  shall have become a Final Order,  (b) the expiration or termination
of the waiting period under the HSR Act and (c) the  satisfaction of each of the
conditions  specified in Article Six hereof (unless waived by the party entitled
to waive such  condition),  except as  otherwise  agreed by Buyer and Seller and
subject to the termination provisions of Article Seven hereof.

                  3.2.  Purchase  Price and Payment.  In  consideration  for the
Assets,  and subject to the terms and conditions of this Agreement,  Buyer shall
assume the Assumed  Liabilities  on the Closing  Date as provided in Section 2.5
hereof and pay an  aggregate  amount of  $4,500,000  (the  "Purchase  Price") as
follows:




                                       6



<PAGE>



                  (a) Deposit.  Upon  execution of this  Agreement,  Buyer shall
         deposit the sum of $450,000 (the  "Deposit")  with Serafin Bros.,  Inc.
         (the "Escrow Agent"), to be held in escrow pursuant to the terms of the
         Escrow Agreement.

                  (b) Cash at  Closing.  On the Closing  Date,  Buyer and Seller
         shall cause the Escrow Agent to deliver the  Deposit,  and all interest
         accrued  thereon,  to Seller,  which shall be credited to the  Purchase
         Price,  and Buyer shall pay to Seller the excess of the Purchase  Price
         over the Deposit and all interest  accrued thereon by wire transfers of
         immediately  available funds to such accounts of Seller as Seller shall
         have designated to Buyer at least two business days before the Closing.

                  3.3.  Appraisal,  Purchase Price Allocation and Tax Reporting.
(a) Within 90 days of the Closing  Date,  Buyer shall have an  appraisal  of the
Assets prepared (the "Appraisal"), the fees and expenses of which shall be borne
by Buyer. Buyer shall cause a copy of the Appraisal to be delivered to Seller.

                  (b) If and to the extent  that  Buyer and  Seller  agree on an
allocation  of the  aggregate  amount  of the  Purchase  Price  and the  Assumed
Liabilities among the Assets (the "Purchase Price Allocation"), Buyer and Seller
shall,  and shall  cause each of their  Affiliates  to, (i) prepare and file all
statements or other information required to be furnished to any taxing authority
pursuant to section 1060 of the Code or other  applicable tax law (including IRS
Form 8594) in a manner  consistent  with the  Purchase  Price  Allocation,  (ii)
prepare all tax  returns  and  reports  required to be filed by them in a manner
consistent with the Purchase Price  Allocation,  and (iii) not take any position
contrary to the Purchase Price  Allocation with any government  agency or taxing
authority.

                  (c) Notwithstanding any other provision of this Agreement, the
provisions of this Section 3.3 shall survive the Closing without limitation.


                                  ARTICLE FOUR

                         Representations and Warranties

                  4.1.   Representations   and  Warranties  of  Seller.   Seller
represents and warrants to Buyer as follows:

                  (a) Due Organization; Good Standing and Power. Seller is a cor
         poration duly  organized,  validly  existing and in good standing under
         the laws




                                       7


<PAGE>



         of the State of  Delaware  and has all  requisite  corporate  power and
         authority to own,  lease and operate its assets and  properties  and to
         conduct the business and  operation of the Station as now  conducted by
         it.  Seller has all  requisite  power and  authority to enter into this
         Agreement and the Ancillary  Agreements and to perform its  obligations
         hereunder and thereunder.  Seller is duly qualified to do business as a
         foreign   corporation   and  is  in  good   standing  in  each  of  the
         jurisdictions  in which  the  conduct  of its  business  requires  such
         qualification,  except where the failure to so qualify or to be in good
         standing  would not  reasonably be expected to have a Material  Adverse
         Effect.

                  (b) Authorization and Validity of Agreement. The execution and
         delivery of this  Agreement and the Ancillary  Agreements by Seller and
         the consummation by Seller of the transactions  contemplated hereby and
         thereby have been duly authorized by all necessary  corporate action on
         the part of Seller.  This Agreement and the Ancillary  Agreements  have
         been duly  executed and  delivered by Seller and  constitute  valid and
         legally binding  obligations of Seller,  enforceable  against Seller in
         accordance  with  their  respective  terms,  except  as the same may be
         limited   by   applicable   bankruptcy,   reorganization,   insolvency,
         fraudulent  conveyance,   moratorium,   receivership  or  similar  laws
         affecting  creditors'  rights  or  remedies  generally  and by  general
         principles of equity  (whether  considered in a proceeding at law or in
         equity).

                  (c) Governmental Approvals;  Conflicts. Except as set forth on
         Schedule  4.1(c)  hereto,  the execution and delivery of this Agreement
         and the Ancillary  Agreements by Seller and the  consummation by Seller
         of the trans  actions  contemplated  hereby  and  thereby  (i) will not
         violate  (with or without  the giving of notice or the lapse of time or
         both), or require any consent,  approval,  filing or notice under,  any
         provision of any law,  rule or  regulation,  court  order,  judgment or
         decree  applicable to Seller and (ii) will not conflict with, or result
         in the breach or  termination  of any  provision  of, or  constitute  a
         default under, or result in the  acceleration of the performance of the
         obligations  of Seller  under,  or result  in the  creation  of a lien,
         charge or  encumbrance  upon any  portion of the  Assets,  or under the
         articles  of  incorporation  or  by-laws  of Seller  or any  indenture,
         mortgage,   deed  of  trust,  lease,  licensing  agreement,   contract,
         instrument  or other  agreement  to which Seller is a party or by which
         Seller or any of the Assets is bound.

                  (d) Title to Properties;  Absence of Liens.  Seller (i) is the
         owner of  marketable  fee title to the fee property  listed on Schedule
         2.1(c)  hereto  and  (ii)  has good  title  to all  material  Equipment
         relating to the  business  and  operation  of the  Station  included as
         Assets listed on Schedule 2.1(b) hereto.



                                       8



<PAGE>



         Such Assets are in good operating  condition and repair,  ordinary wear
         and tear  excepted.  Such title is free and clear of all Liens,  except
         for Permitted  Liens or as  specifically  set forth on Schedule  4.1(d)
         hereto. The transmitters and towers owned by the Station, and all other
         items of transmitting  and studio  equipment  listed on Schedule 2.1(b)
         hereto,  (x) have been maintained in a manner consistent with generally
         accepted  standards  of good  engineering  practice,  (y)  will  permit
         operation  of the  Station  in  accordance  with  the  terms of the FCC
         Licenses,  the published  rules and  regulations of the FCC and, to the
         best of  Seller's  knowledge,  all  other  applicable  laws and (z) are
         located on real property owned by Seller.

                  (e) Delivery and Validity of Contracts.  (i) True and complete
         copies of all contracts,  commitments and other agreements  relating to
         the business and  operation of the Station  (including  all  amendments
         thereto)  referred  to on  Schedule  2.1(d)  hereto  either  have  been
         delivered  or made  available  to  Buyer,  (ii)  except as set forth on
         Schedule 4.1(e) hereto, all contracts, commitments and other agreements
         relating to the  business and  operation of the Station  referred to in
         such  Schedules  are in full force and effect in all material  respects
         and (iii) except as set forth on Schedule 4.1(e) hereto,  Seller is not
         in breach or  default in the  performance  of any  material  obligation
         thereunder and, to Seller's knowledge, no other contracting party is in
         breach  or  default  in  the  performance  of any  material  obligation
         thereunder.  Schedule 2.1(d) hereto sets forth all contracts, leases of
         personal  property and commitments which involve payment to or from the
         Station  during the term of such contract,  lease or commitment.  There
         are no trade or barter  agreement as of the date hereof relating to the
         business and operation of the Station.

                  (f) Equipment.  Except as described on Schedule 4.1(f) hereto,
         the Equipment is in good  operating  condition  and repair,  except for
         equipment  temporarily  under  repair or out of service in the ordinary
         course of the business of the Station. EXCEPT AS OTHERWISE SPECIFICALLY
         SET FORTH IN THIS  AGREEMENT,  SELLER  EXPRESSLY  DISCLAIMS ANY IMPLIED
         WARRANTY  OR  REPRESENTATION  AS  TO  CONDITION,   MERCHANTABILITY   OR
         SUITABILITY AS TO ANY OF THE ASSETS.

                  (g) Legal Proceedings.  Except as described on Schedule 4.1(g)
         hereto,   there   is  no   litigation,   proceeding   or   governmental
         investigation  to which Seller is a party  pending or, to the knowledge
         of Seller,  threatened  against  Seller  relating  to the Assets or the
         business and operation of the Station or the trans actions contemplated
         by this Agreement or the Ancillary Agreements which would reasonably be
         expected to have a Material Adverse Effect.



                                       9



<PAGE>



                  (h)  Insurance.  Schedule  4.1(h) hereto sets forth a complete
         and correct list,  as of the date hereof,  of the policies of insurance
         currently maintained by Seller with respect to the Station.

                  (i) Intellectual  Properties.  Seller has no right or title to
         or interest in any Intellectual Properties.

                  (j) FCC Licenses and Other Governmental Authorizations. Seller
         has  and  is the  authorized  legal  holder  of all  FCC  Licenses  and
         Governmental  Authorizations  set  forth  on  Schedules  2.1(a)(i)  and
         2.1(a)(ii)  hereto,  re spectively.  The FCC Licenses and  Governmental
         Authorizations  are all of the  licenses,  permits  and  authorizations
         required for the  operation of the Station as it is now  operated.  The
         FCC Licenses and the Governmental  Authorizations are valid and in full
         force and effect,  are  unimpaired  by any acts or omissions of Seller,
         are free and  clear  of any  restrictions  which  would  reasonably  be
         expected to limit the present  operation of the Station,  and are valid
         for the balance of their respective license terms.  Except as set forth
         on Schedule  4.1(j)  hereto,  no  application,  action or proceeding is
         pending for the renewal or modification of any of the FCC Licenses and,
         to the knowledge of Seller,  there is not now issued or outstanding any
         investigation,  proceeding,  notice of violation  or complaint  against
         Seller at the FCC as of the date hereof  relating to the  Station.  The
         Station is being operated in all material  respects in accordance  with
         the  terms  and  conditions  of  the  FCC  Licenses  and   Governmental
         Authorizations  and the published rules and regulations of the FCC. All
         ownership reports, renewal applications and other reports and documents
         required  to be  filed  with the FCC by or on  behalf  of  Seller  with
         respect to the  Station  have been timely  filed with the FCC,  and all
         such reports,  applications  and other documents are true and complete.
         Seller maintains an appropriate public inspection file at the Station's
         studio in accordance  with the published  rules and  regulations of the
         FCC. To the  knowledge of Seller,  Seller has no reason to believe that
         the FCC will not renew the FCC  Licenses in the  ordinary  course for a
         full term without any material qualifications.

                  (k)  Conduct  of  Business  in  Compliance   with   Regulatory
         Requirements.  Seller is  conducting  the business and operation of the
         Station  so  as  to  comply  with  all  applicable  laws,   ordinances,
         regulations and licenses in all material respects.

                  (l) Taxes.  No event has  occurred  or  condition  exists that
         could  result in any  liability  being  imposed  on Buyer by any taxing
         authority for any Taxes



                                       10



<PAGE>



         of Seller for any taxable period, or imposed with respect to the Assets
         for any  taxable  period or  portion  thereof  ending on or before  the
         Closing Date.

                  (m)  Personnel  Information.  Except as set forth on  Schedule
         4.1(m)  hereto,  there  are no  employees  of  Seller  relating  to the
         business of the Station ("Station's Employees").

                  (n)  Environmental   Matters.  (i)  Seller  has  all  permits,
         licenses and other  authorizations  required under  Environmental Laws,
         except   where  the  failure  to  hold  such   permits,   licenses  and
         authorizations  would not  reasonably  be  expected  to have a Material
         Adverse  Effect.  Seller is in compliance with all terms and conditions
         of such permits, licenses and authorizations,  except where the failure
         to so comply  would  not  reasonably  be  expected  to have a  Material
         Adverse Effect.

                      (ii)  Except as would not reasonably be expected to have a
         Material  Adverse  Effect:  (A) to the  knowledge  of  Seller,  no real
         property  currently or formerly owned or operated by Seller relating to
         the Station is contaminated  with any Hazardous  Substance,  (B) Seller
         has not disposed or arranged  for the disposal of Hazardous  Substances
         so  as  to  give  rise  to  liability  for  any  off-site  disposal  or
         contamination  and (C)  Seller has not  received  any claims or notices
         alleging  liability  under any  Environmental  Law,  and  Seller has no
         knowledge of any circumstances that could result in such claims.

                             (iii) No other  representations  or  warranties  in
         this  Agreement,  including,  but not  limited  to,  those set forth in
         Sections  4.1(c),  4.1(g) and 4.1(k)  hereof,  made by Seller  shall be
         deemed to relate to environmental matters.

                  (o) Certain  Fees.  With the  exception  of fees and  expenses
         payable to Serafin Bros.,  Inc., which will be paid by Seller,  neither
         Seller nor any of its officers,  directors or  employees,  on behalf of
         Seller,  has  employed  any  broker  or finder  or  incurred  any other
         liability  for any  brokerage  fees,  commissions  or finders'  fees in
         connection  with  the  transactions   contemplated  hereby  or  by  the
         Ancillary Agreements.

                  (p)  Transactions  with  Affiliates.  Except  as set  forth on
         Schedule  4.1(p) hereto,  all real  property,  Equipment and contracts,
         commitments  and other  agreements  to be assumed by Buyer are owned or
         held by Seller,  and no Affiliate of Seller owns or leases  property or
         is a party to any contract  affecting or relating to the  operations of
         the Station.



                                       11



<PAGE>



                  (q) Conduct in the  Ordinary  Course.  Except as  described on
         Schedule  4.1(q)  hereto,  since  December 31, 1996, the operations and
         business of the Station have been  conducted  in all material  respects
         only in the ordinary course.

                  (r)  Disclosure.  None of this Agreement or any certificate or
         other   document   delivered  in  connection   with  the   transactions
         contemplated  by this  Agreement  contains  any untrue  statement  of a
         material fact or omits any  statement of a material  fact  necessary to
         make any statement contained herein or therein not misleading.

                  4.2. Representations and Warranties of Buyer. Buyer represents
and warrants to Seller as follows:

                  (a) Due Organization;  Good Standing and Power. Buyer is a cor
         poration duly  organized,  validly  existing and in good standing under
         the laws of the State of Delaware.  Buyer has all  requisite  corporate
         power and  authority  to enter into this  Agreement  and the  Ancillary
         Agreements  and to perform its  obligations  hereunder and  thereunder.
         Buyer is duly qualified to do business as a foreign corporation, and is
         in good standing,  in each of the jurisdictions in which the conduct of
         its business requires such  qualification,  except where the failure to
         so qualify or to be in good standing  would not  reasonably be expected
         to have a material  adverse  effect on the  ability of Buyer to perform
         its obligations hereunder or under the Ancillary Agreements.

                  (b) Authorization and Validity of Agreement. The execution and
         delivery of this  Agreement and the  Ancillary  Agreements by Buyer and
         the consummation by Buyer of the transactions  contemplated  hereby and
         thereby have been duly authorized by all necessary  corporate action on
         the part of Buyer.  This  Agreement and the Ancillary  Agreements  have
         been duly  executed  and  delivered by Buyer and  constitute  valid and
         legally  binding  obligations of Buyer,  enforceable in accordance with
         their respective terms, except as the same may be limited by applicable
         bankruptcy,   reorganization,    insolvency,   fraudulent   conveyance,
         moratorium, receivership or similar laws affecting creditors' rights or
         remedies  generally  and  by  general  principles  of  equity  (whether
         considered at law or in equity).

                  (c)  Governmental  Approvals;  Conflicts.  The  execution  and
         delivery of this  Agreement and the  Ancillary  Agreements by Buyer and
         the  consummation  by it of the  transactions  contemplated  hereby and
         thereby (i) will not  violate  (with or without the giving of notice or
         the lapse of time or both), or require



                                       12



<PAGE>



         any consent, approval, filing or notice under any provision of any law,
         rule or  regulation,  court  order,  judgment or decree  applicable  to
         Buyer, except for such consents,  approvals,  filings and notices which
         may be required under the HSR Act or the  Communications Act (including
         the FCC  Consent) and except for such  violations,  the  occurrence  of
         which, and such consents, approvals, filings or notices, the failure of
         which to obtain or make, would not reasonably be expected to materially
         adversely  affect the ability of Buyer to consummate  the  transactions
         contemplated hereby or by the Ancillary  Agreements,  and (ii) will not
         conflict with, or result in the breach or termination of any pro vision
         of, or constitute a default under, or result in the acceleration of the
         performance  of  the  obligations  of  Buyer  under,  the  articles  of
         incorporation or by-laws of Buyer or any indenture,  mortgage,  deed of
         trust,  lease,  licensing  agreement,  contract,  instrument  or  other
         agreement  to which  Buyer  is a party or by which  Buyer or any of its
         assets or properties  is bound,  except for such  conflicts,  breaches,
         terminations,  defaults or accelerations  which would not reasonably be
         expected  to  materially  adversely  affect  the  ability  of  Buyer to
         consummate  the  transactions  contemplated  hereby or by the Ancillary
         Agreements.

                  (d) Legal Proceedings.  There is no litigation,  proceeding or
         govern  mental  investigation  to which Buyer is a party pending or, to
         the  knowledge  of  Buyer,   threatened  against  it  relating  to  the
         transactions contemplated by this Agreement or the Ancillary Agreements
         which would  reasonably be expected to materially  adversely affect the
         ability of Buyer to consummate the trans actions contemplated hereby or
         by the Ancillary Agreements.

                  (e)  Financial  Capacity.  Buyer  has,  or will have as of the
         Closing  Date,  all funds  necessary  to enable  Buyer to perform  this
         Agreement  and  the  Ancillary  Agreements  in  accordance  with  their
         respective terms.

                  (f)   Qualification.   As  of  the  date  hereof,   under  the
         Communications Act and the present rules,  regulations and practices of
         the FCC, (i) Buyer is legally and  technically  qualified to become the
         licensee of the Station and is financially  qualified to consummate the
         transactions  contemplated  hereby and by the Ancillary  Agreements and
         (ii) will not  require  any special  waiver or  exemption  from any FCC
         rule,  regulation  or policy to enable the FCC to find it  qualified to
         become the  licensee  of the  Station.  Buyer will take no action  that
         Buyer knows, or has reason to know,  would  disqualify Buyer from being
         the assignee of the FCC Licenses and Governmental Authorizations or the
         owner or operator of the Station under the Communications Act and the



                                       13



<PAGE>



         present  rules,  regulations  and  practices  of the FCC, and will take
         prompt   commercially    reasonable   action   to   remove   any   such
         disqualification.

                  (g)  Certain  Fees.  Neither  Buyer  nor any of its  officers,
         directors or employees,  on behalf of Buyer, has employed any broker or
         finder  or  incurred  any  other  liability  for  any  brokerage  fees,
         commissions  or  finders'  fees in  connection  with  the  transactions
         contemplated hereby.

                  4.3.  Acknowledgment  of  Buyer.  Buyer has  conducted  to its
satisfaction  an independent  investigation  and  verification  of the financial
condition,  results of  operations,  assets,  liabilities  and properties of the
Station  and in  making  its  determination  to  proceed  with the  transactions
contemplated  hereby,  Buyer has relied on the  results  of such  investigation;
provided,  however,  that such investigation shall not be deemed to constitute a
waiver of any of Buyer's rights or remedies  hereunder.  The representations and
warranties  of Seller set forth in Section  4.1 hereof  constitute  the sole and
exclusive  representations  and warranties of Seller to Buyer in connection with
the transactions  contemplated  hereby, and Buyer understands,  acknowledges and
agrees  that all other  representations  and  warranties  of any kind or nature,
express or implied, written or oral (including, but not limited to, any relating
to the future or historical financial condition,  results of operations,  assets
or liabilities of the Station) are specifically disclaimed by Seller.

                  4.4. Expiration of Representations and Warranties.  Except for
the specific  representations and warranties referred to in Sections 7.1 and 7.2
hereof,  all  representations  and  warranties  of Seller and Buyer shall expire
with, and be terminated and extinguished by, the Closing and thereafter  Seller,
Buyer and any of their respective Affiliates, officers or directors, as the case
may  be,  shall  have  no  liability   whatsoever   with  respect  to  any  such
representation or warranty.


                                  ARTICLE FIVE

                           Covenants Prior to Closing

                  5.1. Access to Information  Concerning Properties and Records.
Seller agrees that,  during the period  commencing on the date hereof and ending
on the Closing Date,  (a) Seller will give or cause to be given to Buyer and its
representatives  such access,  during normal  business hours, to the properties,
books and  records  of Seller  relating  solely to the  Assets or  business  and
operation of the Station,  as Buyer shall from time to time  reasonably  request
and (b) Seller will furnish or cause to be furnished to Buyer such financial and
operating data and other information which



                                       14



<PAGE>



relates solely to the business and operation of the Station, as Buyer shall from
time  to  time  reasonably  request.  Buyer  and its  representatives  shall  be
entitled, in consultation with Seller, to such access to the representatives and
employees of Seller  involved in the  business  and  operation of the Station as
Buyer may reasonably request.

                  5.2.  Conduct  of the  Business  of the  Station  Pending  the
Closing.  Seller  agrees  that,  except  as  required  or  contemplated  by this
Agreement or the Ancillary Agreements,  or otherwise consented to or approved by
Buyer, during the period commencing on the date hereof and ending on the Closing
Date, it will:

                  (a) conduct the business and  operations of the Station in all
         material respects only in the ordinary course;

                  (b) upon the  effectiveness  of the LMA,  conduct the business
         and  operation of the Station in accordance  with Seller's  obligations
         under the LMA;

                  (c) (i) maintain the books,  accounts and records  relating to
         the  business and  operation  of the Station in the usual,  regular and
         ordinary manner and (ii) comply in all material  respects with all laws
         and contractual obligations applicable to the Station or to the conduct
         of the business and operation of the Station;

                  (d) (i)  operate  the  Station  in all  material  respects  in
         accordance  with the FCC Licenses and the rules and  regulations of the
         FCC and with all other material laws,  rules,  regulations  and orders,
         (ii) not fail to prosecute  with due diligence any pending  application
         to the FCC,  (iii) not cause or permit by any act,  or  failure to act,
         any of the FCC Licenses to expire, be surrendered,  adversely modified,
         or  otherwise  terminated  and (iv) if the Closing has not  occurred by
         December 31, 1997,  file an application for renewal of the FCC Licenses
         and use its commercially  reasonable best efforts and take all steps as
         may be necessary or proper to prosecute such application diligently and
         expeditiously,  including  opposing  any  petition  to deny or informal
         objection  and  furnishing  the FCC with  whatever  information  it may
         request.  If reconsideration or judicial review of the grant is sought,
         Seller  shall  oppose  such  efforts  for  reconsideration  or judicial
         review;

                  (e) not sell, convey, assign,  transfer,  deliver or otherwise
         dispose  of any of the  Assets,  except for Assets  used,  consumed  or
         expended  in the or dinary  course  of  business  consistent  with past
         practice;



                                       15



<PAGE>



                  (f) maintain the Assets in customary  repair,  maintenance and
         condition,  replace all items of Equipment at customary time intervals,
         and repair or replace any Asset that may be damaged or  destroyed  with
         items of equal or greater value and utility unless Seller determines in
         good faith that such repair or  replacement  is not  necessary  for the
         continued  operation of the Station in substantially the same manner as
         heretofore;

                  (g)  maintain  the  insurance  policies on the Station and the
         Assets listed in Schedule 4.1(h) hereto or their equivalent;

                  (h) (i) not  modify  or  change in any  material  respect  any
         material contract, lease, commitment or other agreement relating to the
         business and operation of the Station, except in the ordinary course of
         business consistent with past practice, and (ii) not waive any material
         claims or rights relating to the business and operation of the Station,
         except  in  the  ordinary  course  of  business  consistent  with  past
         practice; and

                  (i) not enter into any material contract, lease, commitment or
         other  agreement  relating to the business and operation of the Station
         except in accordance with Section 1.3 or 2.4 of the LMA,  provided that
         any such contract, lease, commitment or other agreement shall terminate
         on or prior to the Closing Date.

                  5.3.  Further  Actions.  Subject  to the terms and  conditions
hereof, Buyer and Seller agree to use their commercially reasonable best efforts
to take, or cause to be taken, all appropriate action, and to do, or cause to be
done, all things necessary, proper or advisable to consummate and make effective
the transactions contemplated hereby and by the Ancillary Agreements in the most
expeditious  manner   practicable.   Without  limiting  the  generality  of  the
foregoing, Buyer and Seller shall use their commercially reasonable best efforts
(i) to obtain  prior to the  Closing  Date,  all  consents,  authorizations  and
approvals from such governmental authorities and other third parties as shall be
necessary to permit the consummation of the transactions contemplated hereby and
by the Ancillary  Agreements,  (ii) to oppose, lift or rescind any injunction or
restraining order or other order adversely  affecting the ability of the parties
to  consummate  the  transactions  contemplated  hereby  and  by  the  Ancillary
Agreements and (iii) to furnish to each other such information and assistance as
reasonably may be requested in connection with the foregoing.  Where the consent
of any third party is required under the terms of any of the contracts,  leases,
commitments  or other  agreements to be assumed by Buyer  hereunder or under the
LMA, Buyer and Seller shall use their  commercially  reasonable  best efforts to
obtain such consent on terms and conditions  not materially  less favorable than
as in



                                       16



<PAGE>



effect  on the date  hereof.  Subject  to the  terms of the  LMA,  Seller  shall
promptly  notify Buyer of all material  changes in the business and operation of
the Station.

                  5.4.  FCC  Licenses.   Buyer  and  Seller   acknowledge   that
assignment  of the FCC Licenses by Seller to Buyer  requires  the prior  written
consent of the FCC.  Buyer and Seller  shall use their  commercially  reasonable
best  efforts and  cooperate  in promptly  filing or causing to be filed the FCC
Application  within 10  business  days after the date  hereof.  Buyer and Seller
shall use their  commercially  reasonable best efforts and take all steps as may
be  necessary  or  proper  to  prosecute  the  FCC  Application  diligently  and
expeditiously to a favorable conclusion, including opposing any petition to deny
or informal objection to the FCC Application. Buyer and Seller mutually agree to
provide  whatever  additional  information  the FCC may  reasonably  request  in
processing the FCC Application,  and to furnish such information within the time
established by the FCC in its request and any reasonable and necessary extension
thereof.  If  reconsideration  or judicial  review is sought with respect to the
consent of the  assignment  of the FCC  Licenses,  Buyer and Seller shall oppose
such efforts for reconsideration or judicial review.

                  5.5. Buyer  Qualification.  Prior to the Closing,  Buyer shall
exercise its commercially  reasonable best efforts to refrain from doing any act
which would disqualify it from being the licensee of the Station.

                  5.6. Station's Employees.  Seller agrees to be responsible for
the salary,  benefits and other  compensation  payable to, or severance or other
termination  benefits,  including any benefits  under the  Consolidated  Omnibus
Budget  Reconciliation  Act of  1985,  as  amended,  and any  other  liabilities
relating to the Station's  Employees alleged by the Station's  Employees.  Buyer
shall not hire any of the Station's Employees.

                  5.7. Environmental Due Diligence. At Buyer's option, Buyer, at
its sole  expense,  shall have  completed  within 10 days of the date  hereof an
environmental  due  diligence  review  relating to the fee property set forth on
Schedule  2.1(c) hereto,  including,  a Phase I  environmental  assessment  (the
"Phase I"), and notified  Seller in writing of the results of such due diligence
review  within such 10-day  period.  If a further  environmental  assessment  (a
"Phase II") is  recommended  by the Phase I, Buyer,  at its sole expense,  shall
have completed such Phase II within 14 days after the end of such 10-day period.
Buyer may not perform or cause to be performed  any invasive  review of such fee
property  without giving prior written notice to Seller and affording Seller the
opportunity  to observe such  review,  and Seller shall not delay such review by
Buyer.



                                       17




<PAGE>



                  5.8. Supplements to Disclosure. From time to time prior to the
Closing, Seller may amend or supplement the Schedules attached to this Agreement
with  respect to any matter  that,  if existing or  occurring at or prior to the
Closing  Date,  would have been  required to be set forth or described on such a
Schedule or that is  necessary  to complete  or correct any  information  in any
representation or warranty contained in Section 4.1 hereof, unless Buyer objects
to any such  amendment or  supplement  in writing  within five  business days of
receipt thereof.


                                   ARTICLE SIX

                              Conditions Precedent

                  6.1. Conditions  Precedent to Obligations of Both Parties. The
respec  tive  obligations  of Buyer and Seller to  consummate  the  transactions
contemplated by this Agreement shall be subject to the  satisfaction  (or waiver
by both  Buyer and  Seller)  at or prior to the  Closing  Date of the  following
conditions:

                  (a) No Injunction, etc. No preliminary or permanent injunction
         or other  order  issued  by any  federal  or state  court of  competent
         jurisdiction  in the United States or by any United  States  federal or
         state  governmental  or  regu  latory  body  nor  any  statute,   rule,
         regulation  or  executive  order  promulgated  or enacted by any United
         States federal or state governmental authority which restrains, enjoins
         or otherwise prohibits the transactions contemplated hereby shall be in
         effect.

                  (b) Antitrust  Matters.  The waiting period under the HSR Act,
         if applicable, shall have expired or shall have been terminated.

                  (c) FCC Matters.  The FCC shall have  released a public notice
         or other  written  notification,  including  notice  on FCC  Form  732,
         satisfactory to Buyer and Seller announcing its grant of consent to the
         FCC  Application and such grant shall have become a Final Order. In the
         event Buyer and Seller  both waive the  requirement  of a Final  Order,
         then Buyer and Seller will jointly execute a mutually acceptable unwind
         agreement at Closing,  which will provide that, if the grant of consent
         to the FCC Application is rescinded, by the FCC or otherwise,  prior to
         the grant  becoming a Final  Order,  Buyer and Seller  will  unwind the
         Closing,  the  Purchase  Price  will be  returned  to  Buyer,  and this
         Agreement will be terminated.





                                       18


<PAGE>



                  6.2.  Conditions   Precedent  to  Obligations  of  Buyer.  The
obligations  of Buyer under this Agreement are subject to the  satisfaction  (or
waiver  by  Buyer)  at or prior  to the  Closing  Date of each of the  following
conditions:

                  (a) Accuracy of Representations  and Warranties of Seller. All
         repre sentations and warranties in Section 4.1 hereof shall be true and
         correct in all material  respects on and as of the Closing  Date, as if
         made on and as of the Closing Date,  except to the extent that any such
         representation  or warranty is made as of a  specified  date,  in which
         case such  representation  or warranty shall have been true and correct
         as of such date.

                  (b)  Performance of  Agreements.  Seller shall in all material
         respects have performed all obligations  and  agreements,  and complied
         with all coven ants and  conditions,  contained in this Agreement to be
         performed or complied with by it prior to or on the Closing Date.

                  (c) No Adverse  Modification of FCC Licenses.  Seller shall be
         the  holder  of the FCC  Licenses  and  there  shall  not have been any
         modification  of any of such FCC Licenses which has a material  adverse
         effect on the  business or  operation of the Station as operated on the
         date  hereof.  In the event that the FCC has not issued its  consent to
         the FCC  Application by December 1, 1997,  then by the Closing Date the
         FCC shall have  granted  Seller's  application  for  renewal of the FCC
         Licenses for a full license term, such grant shall not impose on Seller
         or the FCC Licenses any  condition  that would have a material  adverse
         effect after the Closing on the business or  operations  of the Station
         as  operated on the date  hereof,  except  that  routine EEO  reporting
         conditions  shall not be construed as having a material  adverse effect
         on the business or operations of the Station, and such grant shall have
         become a Final Order.

                  (d)  Officer's  Certificate.   Buyer  shall  have  received  a
         certificate,   dated  the  Closing   Date,   of  the   President  or  a
         Vice-President  of Seller to the effect that,  to the knowledge of such
         officer, the conditions specified in subsections (a), (b) and (c) above
         have been satisfied.

                  (e)  Opinions.  Buyer  shall have  received  (i) an opinion of
         Barbara  Burns,  Vice-President  and General  Counsel of Greater Media,
         Inc., the sole stockholder of Greater Media Holdings, Inc. which is, in
         turn,  the sole stock  holder of Greater  Media Radio,  Inc.,  the sole
         stockholder of Seller, and (ii) an opinion of Schwartz, Woods & Miller,
         special FCC counsel for Seller, each



                                       19



<PAGE>



         dated the Closing Date,  substantially  in the form attached  hereto as
         Exhibits A and B, respectively.

                  (f)   Actions  and   Proceedings.   All   corporate   actions,
         proceedings,  instruments  and  documents  required  to  carry  out the
         transactions  contemplated by this Agreement or incidental  thereto and
         all other related legal  matters  shall be reasonably  satisfactory  to
         Buyer.

                  (g) Third-Party Consents. Seller shall have obtained and shall
         have  delivered  to  Buyer  the  third-party   consents   required  for
         assignment of the contracts, commitments and other agreements set forth
         on Schedule 6.2(g) hereto.

                  (h) Payment of Indebtedness;  Financing Statements. Subject to
         payment of the Purchase  Price to Seller,  Seller shall have  delivered
         releases  or  terminations  under the Uniform  Commercial  Code and any
         other applicable federal, state or local statutes or regulations of any
         financing or similar statements, including mortgages, filed against any
         of the Assets, except for Permitted Liens.

                  (i)   Deliveries.   Seller  shall  have  made  the   following
         deliveries:

                           (i)  instruments of conveyance and transfer  pursuant
                  to  Section  2.3  hereof,   effecting  the  sale,  conveyance,
                  assignment and transfer of the Assets to Buyer, including, but
                  not limited to, the following:

                                    (1) bargain  and sale deed with  guarantor's
                           covenants  for the fee property set forth on Schedule
                           2.1(c)  hereto,   together  with  necessary  transfer
                           declarations or affidavits;

                                    (2)  assignments of the FCC Licenses;

                                    (3)  bills of sale for all Equipment;

                                    (4)    assignments    of   the    contracts,
                           commitments   and  other   agreements  set  forth  on
                           Schedule  2.1(d)  hereto,  together with any consents
                           obtained related thereto; and



                                       20




<PAGE>



                           (ii) certified  resolutions of the board of directors
                  of Seller, authorizing the execution, delivery and performance
                  of this Agreement and the Ancillary Agreements.

                  6.3.  Conditions  Precedent  to  Obligations  of  Seller.  The
obligations of Seller under this Agreement are subject to the  satisfaction  (or
waiver  by  Seller)  at or prior to the  Closing  Date of each of the  following
conditions:

                  (a) Accuracy of  Representations  and Warranties of Buyer. All
         repre sentations and warranties in Section 4.2 hereof shall be true and
         correct in all material  respects on and as of the Closing  Date, as if
         made on and as of the Closing Date,  except to the extent that any such
         representation  or warranty is made as of a  specified  date,  in which
         case such  representation  or warranty shall have been true and correct
         as of such date.

                  (b)  Performance  of  Agreements.  Buyer shall in all material
         respects have performed all obligations  and  agreements,  and complied
         with all coven ants and  conditions,  contained in this Agreement to be
         performed or complied with by it prior to or on the Closing Date.

                  (c)  Officer's  Certificate.  Seller  shall  have  received  a
         certificate,  dated  the  Closing  Date,  of  the  President  or a Vice
         President  of  Buyer  to the  effect  that,  to the  knowledge  of such
         officer, the conditions specified in subsections (a) and (b) above have
         been satisfied.

                  (d)  Instruments of Assumption.  Buyer shall have executed and
         de livered to Seller such instruments, in form and substance reasonably
         satisfactory to counsel to Seller,  pursuant to which Buyer assumes the
         Assumed Liabilities as set forth in Section 2.5 hereof.

                  (e) Opinion.  Seller shall have received an opinion of Michael
         B.  Milsom,  Vice  President  and General  Counsel of Buyer,  dated the
         Closing Date, substantially in the form attached hereto as Exhibit C.

                  (f)   Actions  and   Proceedings.   All   corporate   actions,
         proceedings,  instruments  and  documents  required  to  carry  out the
         transactions  contemplated by this Agreement or incidental  thereto and
         all other related legal  matters  shall be reasonably  satisfactory  to
         Seller.

                  (g)   Deliveries.   Buyer   shall  have  made  the   following
         deliveries:



                                       21




<PAGE>



                           (i)  the Purchase Price in accordance with Section 
                  3.2 hereof;

                           (ii) certified  resolutions of the board of directors
                  of Buyer, authorizing the execution,  delivery and performance
                  of this Agreement and the Ancillary Agreements; and

                           (iii) instruments,  in form and substance  reasonably
                  satisfactory  to Seller  and its  counsel,  pursuant  to which
                  Buyer assumes the Assumed  Liabilities  as provided in Section
                  2.5 hereof.


                                  ARTICLE SEVEN

                                 Indemnification

                  7.1.  Indemnification by Seller. (a) General. Seller agrees to
defend,  indemnify and hold harmless Buyer, its Affiliates and the stockholders,
officers,  directors,  employees,  agents,  advisers and representatives of each
such person ("Buyer  Indemnitees")  from and against,  and pay or reimburse each
Buyer  Indemnitee  for, any and all claims,  liabilities,  obligations,  losses,
fines, costs, royalties, proceedings, deficiencies or damages (whether absolute,
accrued,  conditional or otherwise and whether or not resulting from third party
claims),  including  out-of-  pocket  expenses  and  reasonable  attorneys'  and
accountants fees incurred in the  investigation or defense of any of the same or
in asserting any of their respective rights hereunder (collectively,  "Losses"),
resulting from or arising out of:

                  (i) any inaccuracy of any  representation  or warranty made by
         Seller in Section  4.1(b),  (j) or (l) hereof or the first  sentence of
         Section 4.1(d) hereof;

                  (ii) the  ownership  of the  Assets  or the  operation  of the
         Station prior to the date hereof; and

                  (iii) any  liability  of Seller or the  Station not assumed by
         Buyer hereunder or under the LMA.

                  (b) Limitation on Indemnification. Notwithstanding anything in
this  Agreement  to  the  contrary,   Seller's  obligation  to  indemnify  Buyer
Indemnitees shall be subject to all of the following limitations:

                  (i) The amount of any Losses incurred by any Buyer  Indemnitee
         shall be reduced by the net amount any Buyer Indemnitee recovers (after
         deducting



                                       22



<PAGE>



         all  attorneys'  fees,   expenses  and  other  out-of-pocket  costs  of
         recovery)  from any insurer or other party liable for such Losses,  and
         Buyer  Indemnitees  shall use  commercially  reasonable best efforts to
         effect any such recovery.

                  (ii) Buyer  Indemnitees  shall be entitled to  indemnification
         only for Losses as to which Buyer Indemnitees have given Seller written
         notice  describing in  reasonable  detail the nature and basis for such
         indemnification  (a  "Notice  of  Claim")  on or  prior  to  the  first
         anniversary of the Closing Date.

                  (iii) Seller shall not be required to make any indemnification
         under  Section  7.1(a)  hereof  until  the  aggregate  amount of Losses
         resulting  from or arising  out of the  matters  referred to in Section
         7.1(a) hereof exceeds $45,000; provided that if the aggregate amount of
         such Losses exceeds such amount,  Seller shall be required to indemnify
         Buyer  Indemnitees  for all Losses  indemnifiable  under Section 7.1(a)
         hereof without regard to such $45,000 limitation.

                  (c)  Exclusive  Remedy.  Except as provided in Article  Eight,
subsequent to the Closing,  indemnification  under this Section 7.1 shall be the
exclusive remedy of Buyer  Indemnitees  with respect to any legal,  equitable or
other claim for relief based upon this Agreement or arising hereunder.

                  7.2.  Indemnification  by Buyer. (a) General.  Buyer agrees to
defend, indemnify and hold harmless Seller, its Affiliates and the stockholders,
officers,  directors,  employees,  agents,  advisers and representatives of each
such person ("Seller  Indemnitees") from and against,  any pay or reimburse each
Seller Indemnitee for, any and all Losses resulting from or arising out of:

                  (i) any inaccuracy in any  representation  or warranty made by
         Buyer in Sections 4.2(b) or (f) hereof;

                  (ii)  any Assumed Liability; and

                  (iii) the  ownership  of the  Assets or the  operation  of the
         Station subsequent to the Closing Date.

                  (b) Limitation on Indemnification. Notwithstanding anything in
this  Agreement  to  the  contrary,   Buyer's  obligation  to  indemnify  Seller
Indemnitees shall be subject to all of the following limitations:


                                       23





<PAGE>



                  (i) The amount of any Losses incurred by any Seller Indemnitee
         shall be  reduced by the net  amount  any  Seller  Indemnitee  recovers
         (after deducting all attorneys' fees,  expenses and other out-of-pocket
         costs of  recovery)  from any  insurer or other  party  liable for such
         Losses, and Seller  Indemnitees shall use commercially  reasonable best
         efforts to effect any such recovery.

                  (ii) Seller  Indemnitees shall be entitled to  indemnification
         only for  Losses as to which  Seller  Indemnitees  have  given  Buyer a
         Notice of Claim on or prior to the  first  anniversary  of the  Closing
         Date.

                  (iii) Buyer shall not be required to make any  indemnification
         under  Section  7.2(a)  hereof  until  the  aggregate  amount of Losses
         resulting  from or arising  out of the  matters  referred to in Section
         7.2(a) hereof exceeds $45,000; provided that if the aggregate amount of
         such Losses  exceeds such amount,  Buyer shall be required to indemnify
         Seller  Indemnitees for all Losses  indemnifiable  under Section 7.2(a)
         hereof without regard to such $45,000 limitation.

                  (c)  Exclusive  Remedy.  Except as provided in Article  Eight,
subsequent  to the Closing  indemnification  under this Section 7.2 shall be the
exclusive remedy of Seller  Indemnitees with respect to any legal,  equitable or
other claim for relief based upon this Agreement or arising hereunder.

                  7.3.  Indemnification  Procedures.  In the  case of any  claim
asserted by a third party against a party entitled to indemnification under this
Agreement  (the  "Indemnified  Party"),  a Notice of Claim shall be given by the
Indemnified  Party  to  the  party  required  to  provide  indemnification  (the
"Indemnifying Party") promptly after such Indemnified Party has actual knowledge
of any claim as to which  indemnity  may be sought,  and the  Indemnified  Party
shall permit the Indemnifying Party (at the expense of such Indemnifying  Party)
to assume  the  defense  of any  claim or any  litigation  resulting  therefrom,
provided  that the  Indemnified  Party may  participate  in such defense at such
Indemnified  Party's expense and the omission by any Indemnified Party to give a
Notice of Claim shall not relieve the Indemnifying Party of its  indemnification
obligation  under this  Agreement  except to the extent  that such  Indemnifying
Party is materially  damaged as a result of such failure to give notice.  Except
with the prior written consent of the Indemnified Party, no Indemnifying  Party,
in the defense of any such claim or  litigation,  shall  consent to entry of any
judgment  or order,  interim or  otherwise,  or enter into any  settlement  that
provides for injunctive or other  nonmonetary  relief  affecting the Indemnified
Party or that does not include as an  unconditional  term  thereof the giving by
each  claimant or  plaintiff  to such  Indemnified  Party of a release  from all
liability with respect to such claim or



                                       24



<PAGE>



litigation.  In the event the Indemnifying Party elects to assume the defense of
such claim or  litigation,  the  Indemnifying  Party  shall not be liable to the
Indemnified  Party  under  this  Article  Seven for any legal or other  expenses
subsequently  incurred by the  Indemnified  Party in connection with the defense
thereof,  provided  that the  Indemnified  Party  shall have the right to employ
counsel to represent it if either (a) such claim or litigation involves remedies
other than  monetary  damages  and such  remedies,  in the  Indemnified  Party's
reasonable  judgment,  could have a material  adverse effect on such Indemnified
Party  or (b)  the  Indemnified  Party  may  have  avail  able to it one or more
defenses  or  counterclaims  which  are  inconsistent  with one or more of those
claims alleged by the  Indemnifying  Party. If the  Indemnifying  Party does not
elect to assume the defense of such claim or litigation,  the Indemnified  Party
shall act  reasonably and in accordance  with its good faith  business  judgment
with  respect  thereto,  and shall not  settle or  compromise  any such claim or
litigation  without the consent of the Indemnifying  Party,  which consent shall
not be unreasonably  withheld.  The parties hereto agree to render to each other
such assistance as may reasonably be requested in order to insure the proper and
adequate defense of any such claim or litigation.


                                  ARTICLE EIGHT

                                   Termination

                  8.1.  General.  This  Agreement  may  be  terminated  and  the
transactions  contemplated herein may be abandoned (a) by mutual written consent
of  Buyer  and  Seller,  (b) by  any  non-defaulting  party  if  consent  to the
assignment of the FCC Licenses is denied by Final Order (unless the  requirement
for a Final  Order is  waived by Buyer and  Seller),  (c) by any  non-defaulting
party if the other  party shall have  materially  breached  any of its  material
covenants  herein and such breach is not cured  within 10 business  days of such
party's  receipt of written  notice  from the  non-de  faulting  party that such
breach  exists or has  occurred  or if such  party  shall  have made a  material
misrepresentation  herein  and such  misrepresentation  is not  cured  within 10
business days of such party's receipt of written notice from the  non-defaulting
party that such misrepresentation has been made, (d) by any non-defaulting party
by notice to the other party if the Closing  Date shall not have  occurred on or
before the first anniversary of the date of this Agreement,  provided,  however,
that if the FCC  has  not  issued  written  consent  to the FCC  Application  by
December 1, 1997, the term of this Agreement  shall be extended by an additional
nine month period  following the acceptance by the FCC of the Station's  license
renewal  application or (e) by Buyer, if, (i) based on the results of either the
Phase I or Phase II conducted  pursuant to Section 5.7 hereof,  Buyer reasonably
believes that the actions required to implement



                                       25



<PAGE>



any  recommendations  resulting  from  either  such Phase I or Phase II, if any,
shall exceed  $50,000  (exclusive of the costs of such Phase I and Phase II) and
(ii) Buyer  gives  written  notice of such  belief to Seller  within  either the
10-day or 14-day period specified in Section 5.7 hereof, as the case may be.

                  8.2. No Liabilities in Event of  Termination.  In the event of
any  termination of this  Agreement as provided in Section 8.1 hereof,  (a) this
Agreement  shall forthwith  become void and of no further force and effect,  (b)
the Deposit, and all interest accrued thereon,  shall be delivered in accordance
with the terms of the Escrow  Agreement  and (c) there shall be no  liability on
the part of Buyer, Seller or their respective Affiliates, officers or directors,
as the case may be; provided, however, (i) Article Eight and Sections 10.1, 10.2
and 10.12  hereof  shall  survive any such  termination,  (ii) in the event of a
termination of this Agreement pursuant to Section 8.1(c) hereof by Buyer, Seller
shall be liable for any damages  sustained  by Buyer and (iii) in the event of a
termination of this Agreement  pursuant to Section 8.1(c) hereof by Seller,  the
Deposit,  and all  interest  accrued  thereon,  shall be  released  to Seller in
accordance with the terms of the Escrow  Agreement (such amount to be liquidated
damages for any damages  sustained  by Seller as the nature of this  transaction
being such as will not permit an exact determination of the damages which may be
suffered by Seller by reason of such default by Buyer). In the event Buyer shall
be entitled to terminate this Agreement pursuant to Section 8.1(c) hereof, Buyer
may,  in lieu of  exercising  such right to  terminate  this  Agreement,  obtain
specific performance of the terms of this Agreement.


                                  ARTICLE NINE

                             Post-Closing Covenants

                  9.1.  Access to Books and  Records.  For a period of six years
following the Closing Date,  Buyer shall afford,  and shall cause its Affiliates
to afford,  to Seller and its counsel and  accountants,  during normal  business
hours,  reasonable  access to the books,  records  and other data of the Station
with  respect to the period  prior to the  Closing  Date to the extent that such
access may be reasonably  required by Seller in connection with matters relating
to or affected by the operations of the Station prior to the Closing Date. Buyer
will not  dispose of,  alter or destroy  any such books,  records and other data
without giving 30 days' prior notice to Seller to permit it, at its expense,  to
examine,   duplicate  or  repossess   such   records,   files,   documents   and
correspondence.



                                       26




<PAGE>



                  9.2.  Further  Agreements.  Seller shall  promptly  deliver to
Buyer any mail or other  communication  received  by it after the  Closing  Date
pertaining  to the business  and  operation of the Station or the Assets and any
cash, checks or other  instruments of payment to which Buyer is entitled.  Buyer
shall promptly deliver to Seller any mail or other communication  received by it
after the Closing Date pertaining to the Excluded Assets,  and any cash,  checks
or other instruments of payment in respect of such Excluded Assets.

                  9.3. Financial Statements. After the date hereof and until the
sixth  anniversary of the Closing Date,  promptly upon request from Buyer and to
the  extent  reasonably  available,  Seller  shall  deliver  to Buyer  copies of
unaudited  income and expense  statements of the Station for each of the periods
ended  September  30,  1996 and 1997 as prepared  by Seller or an  Affiliate  of
Seller.


                                   ARTICLE TEN

                                  Miscellaneous

                  10.1.  Public  Announcements.  So long as this Agreement is in
effect, Buyer and Seller agree to use their commercially reasonable best efforts
to consult  with each other and  obtain the prior  written  consent of the other
party before issuing any press release or otherwise  making any public statement
with  respect  to the  transactions  contemplated  hereby  or by  the  Ancillary
Agreements unless such disclosure is required by applicable law.

                  10.2. Expenses. Subject to Section 10.3 hereof, whether or not
the  transactions  contemplated  by this  Agreement are  consummated,  Buyer and
Seller shall pay the fees and  expenses  incurred by it in  connection  with the
negotiation,   preparation,   execution  and   performance  of  this  Agreement,
including, without limi tation, attorneys' fees and accountants' fees; provided,
however, Buyer and Seller shall share equally the cost of the FCC filing fee for
the FCC Application.

                  10.3. Transfer Taxes. Buyer and Seller shall share equally and
cooperate  in the timely  payment of all  Transfer  Taxes  arising  out of or in
connection with or attributable to the  transactions  effected  pursuant to this
Agreement  and each party shall  indemnify and hold harmless the other party and
its Affiliates  against the payment of its portion of Transfer Taxes. As between
Buyer and Seller, the party that has the primary responsibility under applicable
law for  filing  any return in respect of  Transfer  Taxes  shall  prepare  such
return,  subject to the other  party's  approval,  which  approval  shall not be
unreasonably withheld, and timely file such return.



                                       27



<PAGE>



                  10.4.  Notices.  All  notices,  requests,  demands  and  other
communications  hereunder  shall be in writing  and shall be deemed to have been
duly given or made as follows:  (a) if sent by registered  or certified  mail in
the  United  States  return  receipt  requested,  upon  receipt;  (b) if sent by
reputable  overnight air courier (such as DHL or Federal Express),  two business
days after  mailing;  (c) if sent by fax,  with a copy mailed on the same day in
the  manner  provided  in (a) or (b)  above,  when  transmitted  and  receipt is
confirmed by telephone; or (d) if otherwise actually personally delivered,  when
delivered, and shall be delivered as follows:

                  (a)      If to Seller:

                           Greater Boston Radio, Inc.
                           c/o Greater Media, Inc.
                           P.O. Box 1059
                           Two Kennedy Boulevard
                           East Brunswick, New Jersey  08816
                           Attention: Barbara Burns
                           Phone:  (908) 247-6161
                           Fax:    (908) 247-4956

                  with a copy to:

                           Debevoise & Plimpton
                           875 Third Avenue
                           New York, New York  10022
                           Attention:  Richard D. Bohm
                           Phone:  (212) 909-6226
                           Fax:    (212) 909-6836

                  (b)      If to Buyer:

                           American Radio Systems Corporation
                           116 Huntington Avenue
                           Boston, Massachusetts  02116
                           Attention:  Michael B. Milsom
                           Phone:  (617) 375-7500
                           Fax:  (617) 375-7575

 


                                       28


<PAGE>

                 with a copy to:

                           Dow, Lohnes & Albertson, PLLC
                           1200 New Hampshire Avenue, N.W.
                           Suite 800
                           Washington, D.C.  20036-6802
                           Attention:  John T. Byrnes, Jr.
                           Phone:  (202) 776-2000
                           Fax:  (202) 776-2222

or to such other  address or to such other person as the party to whom notice is
given may have  previously  furnished  to the other in writing in the manner set
forth above.

                  10.5.   Entire  Agreement.   This  Agreement   (including  the
Schedules hereto) together with the Ancillary  Agreements  constitute the entire
agreement between Buyer and Seller with respect to the subject matter hereof and
supersede all prior  agreements and  understandings,  oral and written,  between
Buyer and Seller with respect to the subject matter hereof.

                  10.6. Assignment. (a) Neither this Agreement nor any rights or
obligations  hereunder  may be assigned  by Seller or Buyer  without the written
consent of the other  party  hereto,  except (i) to the extent  permitted  under
subsection  (b) of this Section 10.6,  (ii) that after the Closing Date,  Seller
may assign any of its rights and  obligations  to any  Affiliate or successor in
interest of Seller and (iii) (x) that after the Closing  Date,  Buyer may assign
its obligations hereunder to any Affiliate or successor in interest and (y) that
Buyer may  assign  its  rights  hereunder  to  acquire  the FCC  Licenses  to an
Affiliate.

                  (b) Buyer  acknowledges  that Seller may desire to effect this
transaction  as an  exchange  of the Assets for other  property of like kind and
qualifying use within the meaning of section 1031 of the Code. Seller may assign
its rights  hereunder to a qualified  intermediary  as provided  under  Treasury
Regulations  section 1.1031(k)- 1(g)(4) on or before the Closing Date,  provided
that such  assignment  shall be made  without  any cost or  expense to Buyer and
without Buyer otherwise  incurring any liability thereby and provided,  further,
that any such  assignment  shall not relieve Seller from any of its  obligations
under this  Agreement.  Buyer shall cooperate with Seller to effectuate any such
exchange, provided that such cooperation would not result in any additional cost
or expense to Buyer and Buyer would not otherwise incur any liability thereby.

                  10.7. No Third-Party Beneficiaries.  Except as provided in Sec
tion 10.6  hereof,  nothing in this  Agreement  shall confer any rights upon any
person or entity other than the parties  hereto and their  respective  permitted
successors and assigns.



                                       29



<PAGE>



                  10.8.  Amendment;  Waiver. No amendment,  waiver of compliance
with any provision or condition  hereof,  or consent  pursuant to this Agreement
shall be effective  unless  evidenced by an instrument in writing  signed by the
party against whom enforcement of any amendment, waiver or consent is sought.

                  10.9.  Interpretation.  The section headings in this Agreement
are for convenience of reference only and shall not be deemed to alter or affect
the  meaning or  interpretation  of any  provision  hereof.  Any  references  to
Seller's knowledge or the knowledge of Seller shall mean the actual knowledge of
Thomas J. Milewski after due inquiry of the Station's manager.

                  10.10. Severability. Whenever possible, each provision of this
Agreement  shall be  interpreted  in such a manner as to be effective  and valid
under applicable law, and if any provision of this Agreement is interpreted by a
court of  competent  jurisdiction  and  found to be  invalid  or  unenforceable,
neither the  enforceability  nor the validity of such provisions with respect to
any other facts or under any other circumstances shall thereby be impaired.  The
unenforceability  or  invalidity  of  any  provision  shall  not  result  in the
interpretation  of the remainder of this Agreement,  or any Section hereof, in a
manner inconsistent with intent of the parties as evidenced by the terms of this
Agreement, or such Section, as a whole.

                  10.11.  Counterparts.  This  Agreement  may be executed in two
counterparts,  each of which shall be deemed to be an original and both of which
together shall be deemed to be one and the same agreement.

                  10.12.  Governing  Law;  Jurisdiction.  The  construction  and
perfor mance of this Agreement shall be governed by the laws of the State of New
York without  regard to its  principles  of conflict of laws,  and the state and
federal  courts  of  New  York  shall  have  exclusive   jurisdiction  over  any
controversy or claim arising out of or relating to this Agreement.


                                       30




<PAGE>




                  IN WITNESS  WHEREOF,  the  parties  hereto have  executed  and
delivered this Agreement as of the date first above written.


                                  GREATER BOSTON RADIO, INC.



                                  By:
                                      Name:
                                     Title:



                                  AMERICAN RADIO SYSTEMS
                                    CORPORATION



                                  By:
                                      Name:
                                     Title:





                                       31


                                                                   Exhibit 10.10




                            TIME BROKERAGE AGREEMENT

                                     between

                           GREATER BOSTON RADIO, INC.
                                   as Licensee

                                       and

                       AMERICAN RADIO SYSTEMS CORPORATION
                                 as Time Broker


                            Dated as of May 14, 1997


















<PAGE>


<TABLE>
<CAPTION>

                                TABLE OF CONTENTS


                                                                                                   Page
<S>                                                                                                 <C>

ARTICLE ONE...........................................................................................1
      1.1.      Broadcast of Programming..............................................................1
      1.2.      Payment...............................................................................1
      1.3.      Licensee's Programming................................................................2
      1.4.      Term..................................................................................2

ARTICLE TWO                 Programming and Operating Standards and Practices.........................2
      2.1.      Compliance with Standards.............................................................2
      2.2.      Political Broadcasts..................................................................3
      2.3.      Handling of Communications............................................................3
      2.4.      Preemption............................................................................3
      2.5.      Rights in Programs....................................................................4
      2.6.      "Payola" and "Plugola"................................................................4
      2.7.      Advertising and Programming...........................................................4
      2.8.      Compliance with Laws..................................................................4
      2.9.      Certifications........................................................................4

ARTICLE THREE               Responsibility for Employees and Expenses.................................5
      3.1.      Time Broker's Employees...............................................................5
      3.2.      Licensee's Employees..................................................................5
      3.3.      Time Broker's Expenses................................................................5
      3.4.      Operating Expenses....................................................................5

ARTICLE FOUR                Assignment of Certain Agreements and Rights...............................6
      4.1.      Assignment............................................................................6
      4.2.      Proration.............................................................................6
      4.3.      Accounts Receivable...................................................................7

ARTICLE FIVE                Operation of Station......................................................7

ARTICLE SIX                 Facilities and License....................................................8
      6.1.      Facilities............................................................................8
      6.2.      License to Use Station Call Letters...................................................8


                                       i




<PAGE>





ARTICLE SEVEN               Indemnification...........................................................8
      7.1.      Indemnification Rights................................................................8
      7.2.      Procedures............................................................................9

ARTICLE EIGHT               Default...................................................................9
      8.1.      Events of Default.....................................................................9
      8.2.      Cure Periods.........................................................................10

ARTICLE NINE                Termination..............................................................10
      9.1.      Termination Upon Default.............................................................10
      9.2.      Certain Matters Upon Termination.....................................................11

ARTICLE TEN                 Remedies.................................................................11

ARTICLE ELEVEN              Certain Representations, Warranties and Covenants of the Parties.........12
      11.1.     Representations, Warranties and Covenants of Time Broker.............................12
      11.2.     Covenant of Licensee.................................................................12

ARTICLE TWELVE              Miscellaneous............................................................12
      12.1.     Notices..............................................................................12
      12.2.     Entire Agreement.....................................................................14
      12.3.     Assignment...........................................................................14
      12.4.     No Third Party Beneficiaries.........................................................14
      12.5.     Amendment; Waiver....................................................................14
      12.6.     Interpretation.......................................................................14
      12.7.     Severability.........................................................................14
      12.8.     Counterparts.........................................................................14
      12.9.     Governing Law; Jurisdiction..........................................................15
      12.10.    No Joint Venture.....................................................................15
      12.11.    Damage to Station....................................................................15
      12.12.    Noninterference......................................................................15
      12.13.    Regulatory changes...................................................................15
      12.14.    Publicity............................................................................15

</TABLE>


                                       ii




<PAGE>



                                    SCHEDULES

Schedule 1.1                    Programming
Schedule 2.1                    Programming Policy





                                      iii

<PAGE>

                            TIME BROKERAGE AGREEMENT


           TIME BROKERAGE AGREEMENT, dated as of May 14, 1997 (the "Agreement"),
between GREATER BOSTON RADIO,  INC., a Delaware  corporation  ("Licensee"),  and
AMERICAN RADIO SYSTEMS  CORPORATION,  a Delaware  corporation  ("Time  Broker").
Licensee is the licensee of radio station WNFT(AM),  Boston,  Massachusetts (the
"Station").

           WHEREAS,  concurrently with the execution of this Agreement, Licensee
and Time Broker are entering into an Asset  Purchase  Agreement  (the  "Purchase
Agreement")  providing  for the sale of the  Station by  Licensee to Time Broker
upon the terms and conditions set forth therein; and

           WHEREAS,  Licensee and Time Broker  desire to enter into an agreement
providing for the sale of substantially all of the broadcast time of the Station
to Time Broker,  subject to the rules and policies of the Federal Communications
Commission (the "FCC");

           NOW THEREFORE,  in  consideration  of the foregoing and of the mutual
promises,  covenants,  and  conditions  set forth  below,  the parties  agree as
follows:

                                   ARTICLE ONE
  
         1.1.  Broadcast of  Programming.  Effective as of 12:01 a.m. on June 1,
1997 (the  "Commencement  Date"),  Licensee shall  broadcast on the Station,  or
cause to be broadcast on the Station, programs which are presented to it by Time
Broker  as   described   in  greater   detail  on   Schedule   1.1  hereto  (the
"Programming").

         1.2. Payment. (a) In consideration of the broadcast time on the Station
provided to Time Broker pursuant to this Agreement, Time Broker shall (i) pay to
Licensee  a  monthly  fee  of  $25,000  for  the   broadcast  of  Time  Broker's
programming,  prorated for any partial  month and payable on the tenth day after
the  end of each  calendar  month  following  the  Commencement  Date  and  (ii)
reimburse Licensee for certain expenses in accordance with Section 3.4 hereof.

           (b) During the Term, as defined in Article 1.4,  Licensee  shall make
available  broadcast  time on the Station  for the  broadcast  of Time  Broker's
Programming  for up to One Hundred Sixty Five (165) hours a week for the term of
this  agreement  except  for (i)  downtime  occasioned  by  routine  maintenance
consistent  with the  Station's  prior  practice;  (ii) times when Time Broker's
Programming  is not  accepted or is  preempted  by Licensee in  accordance  with
Section 2.4 hereof or because such Programming does not satisfy the







<PAGE>



standards of Schedule 1.1 or 2.1 hereto;  and (iii) Force Majeure Events,  which
shall be defined as any  failure or  impairment  of  facilities  or any delay or
interruption  in  broadcasting  the  Programming  not directly or indirectly the
fault of Licensee or its employees or agents,  or failure at any time to furnish
the facilities in whole or in part for  broadcasting due to acts of God, strikes
or threats  thereof,  force  majeure or any other  causes  beyond the control of
Licensee.

           (c)  Except as to  actions  taken in  accordance  to with  Licensee's
rights under Section 1.2(b) hereof because Time Broker's  Programming  would not
comply with the rules and  regulations  of the FCC,  in the event that  Licensee
preempts,  deletes, delays,  suspends,  cancels or fails to broadcast any of the
Programming  and/or causes any of the  Programming  to be broadcast in a daypart
other than the daypart for which the Time Broker provided such Programming, Time
Broker shall receive a credit equal to the pro rata portion of fees paid for the
broadcast of the Programming for the month in which such  preemption,  deletion,
delay, suspension, cancellation or failure to broadcast occurs.

         1.3.  Licensee's  Programming.  Licensee  shall present  public service
programming  responsive  to the needs,  concerns and issues of importance of the
Station's community of license, as set forth on Schedule 1.1 hereto.

         1.4. Term. This Agreement shall commence on the  Commencement  Date and
shall  terminate  on the earlier of (i) 12:01 a.m. on the Closing Date under the
Purchase Agreement,  (ii) the date that the Purchase Agreement is terminated and
(iii) the date this Agreement is terminated pursuant to Section 9.1 hereof.

                                   ARTICLE TWO

                Programming and Operating Standards and Practices
  
         2.1.  Compliance  with  Standards.  All  Programming  delivered by Time
Broker  and  all  programming  supplied  by  Licensee  during  the  term of this
Agreement shall be in accordance with applicable statutes,  FCC requirements and
the programming policies set forth on Schedule 2.1 hereto. Licensee reserves the
right to refuse to broadcast any  Programming  containing  matter which Licensee
believes is not in the public  interest or may be  violative of any right of any
third party, or which may constitute a "personal attack" as that term is defined
by the FCC or which  Licensee  reasonably  determines  is, or in the  reasonable
opinion of Licensee may be deemed to be, indecent (and not broadcast  during the
safe harbor for indecent  programming  established by the FCC) or obscene by the
FCC or any court or other  regulatory  body with  authority over Licensee or the
Station. If Time Broker does not adhere to the foregoing requirements,  Licensee
may  refuse to  broadcast  any  specific  program,  or part  thereof,  not so in
compliance.




                                       2


<PAGE>


         2.2.  Political  Broadcasts.  Time Broker shall maintain and deliver to
Licensee  all  records and  information  required by the FCC to be placed in the
public  inspection file of the Station  pertaining to the broadcast of political
programming  and  advertisements,  in accordance with the provisions of Sections
73.1940 and 73.3526 of the FCC's rules.  Time Broker shall consult and cooperate
with Licensee and adhere to all applicable  statutes and the rules,  regulations
and  policies of the FCC, as  announced  from time to time,  with respect to the
carriage  of  political  advertisements  and  programming  (including,   without
limitation,  the rights of  candidates  and,  as  appropriate,  others to "equal
opportunities") and the charges permitted  therefor.  Time Broker shall promptly
provide to Licensee such documentation  relating to such programming as Licensee
is  required  to  maintain  in its  public  inspection  file or  Licensee  shall
reasonably request.

         2.3.  Handling of  Communications.  Time Broker  shall  cooperate  with
Licensee in promptly  responding  to all mail,  cables,  telegrams  or telephone
calls  directed to the Station in connection  with the  Programming  provided by
Time Broker or any other matter relevant to its responsibilities hereunder. Time
Broker shall provide to Licensee copies of all such  correspondence as necessary
for  Licensee to comply with the rules and  policies of the FCC.  Promptly  upon
notice thereof, Time Broker shall advise Licensee of any public or FCC complaint
or inquiry known to Time Broker concerning such  Programming,  and shall provide
Licensee  with  copies  of any such  letters  to Time  Broker  from the  public,
including complaints concerning such Programming.  Upon Licensee's request, Time
Broker shall  broadcast  material  responsive to such  complaints and inquiries.
Notwithstanding  the  foregoing,  Licensee shall handle all matters or inquiries
relating  to FCC  complaints  and any other  matters  required  to be handled by
Licensee under the rules and regulations of the FCC in accordance with the rules
and regulations of the FCC.

         2.4.  Preemption.  Licensee may, from time to time, preempt portions of
the  Programming to broadcast  emergency  information or programs it deems would
better serve the public interest, and shall have the absolute right to refuse to
broadcast any program or  announcement  of Time Broker should Licensee deem such
program or  announcement  to be contrary to the public  interest as set forth in
Section 2.1 hereof.  Time Broker  shall be notified at least one week in advance
of any  preemption  of any of the  Programming  for the purpose of  broadcasting
programs  Licensee  deems  necessary  to serve the public  interest  unless such
advance notice is impossible or impractical, in which case Licensee shall notify
Time Broker  promptly upon making such  determination.  Licensee  represents and
covenants  that  preemption  shall  only  occur  to the  extent  Licensee  deems
preemption reasonably necessary to carry out its obligations as an FCC licensee,
and expressly  agrees that its right of preemption  shall not be exercised in an
arbitrary manner or for the commercial  advantage of Licensee or others.  In the
event that Licensee preempts more than 30 hours of Programming and announcements
over any consecutive 30 day period, then Time Broker



                                       3



<PAGE>



shall be entitled at its sole option to terminate this Agreement without further
obligation to Licensee except for payments (if any) already due to Licensee.

         2.5.  Rights in Programs.  All right,  title and interest in and to the
Programming, and the right to authorize the use of the Programming in any manner
and in any media  whatsoever,  shall be and remain vested at all times solely in
Time Broker.

         2.6.  "Payola"  and  "Plugola".  Time  Broker  agrees that it will take
steps, including the continuation of Licensee's system for periodic execution of
affidavits,  reasonably  designed to assure that neither it nor its employees or
agents  will  accept any gift,  gratuity  or other  consideration,  directly  or
indirectly,  from  any  person  or  company  for the  playing  of  records,  the
presentation of any programming or the broadcast of any commercial  announcement
over the Station  without such broadcast  being  identified as sponsored and the
name of such  sponsor  provided.  It is further  understood  and agreed  that no
commercial  message,  endorsement  or  reference  shall be made to any  business
venture,  profit-making  activity or commercial  interest without such broadcast
being identified as sponsored and the name of such sponsor provided.

         2.7.  Advertising and Programming.  Beginning on the Commencement Date,
Time Broker shall be solely  responsible for any expenses incurred in connection
with and  shall be  entitled  to all  revenue  from the sale of  advertising  or
program  time on the  Station  broadcast  on or  after  the  Commencement  Date.
Licensee  shall remain  entitled to all revenue from the sale of  advertising or
program time on the Station broadcast prior to the Commencement  Date.  Licensee
will not enter into any  contract  or  advertising  arrangement  on or after the
Commencement  Date  except with the prior  written  consent of Time Broker or in
accordance  with  Section  1.3 or 2.4  hereof.  Time  Broker does not assume any
obligation of Licensee  under any contract or  advertising  arrangement  entered
into by  Licensee  on or after the  Commencement  Date.  Time Broker will advise
Licensee of its lowest unit charges for political advertising.

         2.8.  Compliance  with  Laws.  At all  times  during  the  term of this
Agreement,  Time Broker and Licensee shall comply in all material  respects with
all applicable federal, state and local laws, rules and regulations.

         2.9. Certifications. Pursuant to Section 73.3555(a)(3)(ii) of the FCC's
rules,  Licensee  certifies  that it shall  maintain  ultimate  control over the
Station's  facilities,  including  specifically  control over station  finances,
personnel  and  programming,  and Time  Broker  certifies  that  this  Agreement
complies with the provisions of Section 73.3555(a)(1) of the FCC's rules.




                                       4



<PAGE>


                                  ARTICLE THREE

                    Responsibility for Employees and Expenses
  
         3.1.  Time  Broker's  Employees.   Time  Broker  shall  employ  and  be
responsible for the payment of salaries,  taxes, insurance,  health benefits and
all  other  costs  related  to  all  personnel  used  in the  production  of the
Programming, the sale of advertising time and for personnel employed in clerical
and administrative  functions  incident thereto.  Time Broker will not incur any
liability  on account  of the  Licensee's  employees  relating  to the  Station,
including,  without limitation, any such liability for sales commissions (except
as described in Section 4.2 hereof) and any liability on account of unemployment
insurance contributions,  termination and severance payments, accrued sick leave
or accrued  vacation.  Whenever at the main studio or otherwise on the Station's
premises,  all of Time Broker's employees shall be subject to the supervision of
the Licensee's manager and/or chief operator.

         3.2. Licensee's  Employees.  Licensee shall continue to employ at least
two persons at the Station:  a full-time,  management level employee,  who shall
report and be solely  accountable to Licensee and shall be  responsible  for the
operations of the Station,  and a staff- level  employee who shall report to and
assist the manager in the  performance  of his or her duties.  Licensee shall be
responsible for the compensation,  taxes, insurance, health benefits and related
costs of such  employees.  One of the persons  employed  by Licensee  shall be a
qualified  engineer  who  shall be  designated  chief  operator  as that term is
defined under the rules and regulations of the FCC, and who shall be responsible
for  ensuring  that the  Station is operated in  compliance  with the  technical
operating and reporting requirements established by the FCC.

         3.3.  Time  Broker's  Expenses.  Time  Broker  shall  pay for all costs
associated with the production and delivery of the Programming,  including,  but
not limited to, (i) all ASCAP,  BMI, SESAC and other  copyright  fees,  (ii) any
expenses  incurred in connection  with the sale of  advertising  time  hereunder
(including,  without  limitation,  sales  commissions)  in  connection  with the
Programming and (iii) the salaries,  taxes,  insurance and related costs for all
personnel  used in the  production of the  Programming  and all sales  personnel
(including salespeople, traffic personnel and programming staff).

         3.4.  Operating  Expenses.  Licensee shall be responsible for and shall
timely pay (a) all  salaries  and related  costs for the  personnel  employed by
Licensee  pursuant  to Section  3.2 hereof and (b) all  expenses  related to the
transmitter facilities of the Station, including, but not limited to, rent, real
estate and personal property taxes, insurance, regulatory fees, utility fees and
maintenance  and repair  costs.  Time Broker  shall  reimburse  Licensee for its
ordinary  and  customary  expenses  (excluding  only salary and benefits for the
persons  employed by Licensee  pursuant to Section 3.2 hereof and electricity at
the transmitter site for





                                       5

<PAGE>



the  Station)  incurred  in  operating  the  Station  arising  on or  after  the
Commencement  Date (the "Operating  Expenses"),  including,  but not limited to,
maintenance  of the tower  and  transmitter  equipment,  rent and  utilities  at
Licensee's studio  facilities,  rent and utilities other than electricity at the
transmitter site for the Station,  any capital expense at the transmitter  site,
insurance and insurance  deductibles on claims.  Licensee shall bill Time Broker
for such  expenses as they are incurred by delivery of a statement in reasonable
detail with back-up  invoices,  payment for which shall be due within 30 days of
such  billing.  Licensee will consult with Time Broker  before  undertaking  any
routine  maintenance  work that will require  reimbursement by Time Broker in an
amount in excess of $1,000.

                                  ARTICLE FOUR

                   Assignment of Certain Agreements and Rights
  
         4.1.  Assignment.  On the Commencement  Date,  Licensee shall assign to
Time  Broker  all  contracts,  commitments  and  other  agreements  set forth on
Schedule 2.1(d) of the Purchase  Agreement and any other such agreements entered
into by Licensee between the date hereof and the Commencement  Date for the sale
of time on the Station  (the "Time Sales  Agreements",  together  with all other
such contracts, commitments or other agreements, collectively, the "Contracts").
Time Broker shall, on and as of the Commencement  Date,  assume and become fully
liable and responsible  for all liabilities and obligations of Licensee  arising
on or after the  Commencement  Date under the  Contracts.  Licensee has provided
Time  Broker  with  true  and  complete  copies,  including  amendments,  of the
Contracts.  The  Contracts  are freely  assignable,  or, if consent of the other
contracting party to the assignment is required,  Licensee and Time Broker shall
use their  reasonable  best  efforts  to obtain  such  consent  as  promptly  as
practicable. If Licensee is unable to obtain any consent necessary to permit the
valid  assignment of a Contract,  Licensee  shall act as Time Broker's  agent in
connection  with such  Contract  and the parties  shall  cooperate to cause Time
Broker to receive the benefit of the  Contract in exchange  for  performance  by
Time Broker of all of Licensee's obligations under such Contract (including, but
not limited to, the payment by Licensee of all amounts due under such Contract).

         4.2.  Proration.  All expenses and income  arising  under the Contracts
shall be prorated between  Licensee and Time Broker as of the Commencement  Date
in  a  manner  such  that  the  costs  and  benefits  thereunder  prior  to  the
Commencement Date shall be for the account of Licensee and,  thereafter,  during
the term of this Agreement,  for the account of Time Broker. With respect to the
preceding,  Licensee shall be responsible for paying sales  commissions  arising
and accruing prior to the  Commencement  Date,  but Time Broker shall  reimburse
Licensee  for such sales  commissions  to the extent that the revenue  from such
sales  relates  to  advertising  or  programming   broadcast  on  or  after  the
Commencement  Date.  If any  disagreement  with respect to the proration of such
income and expenses cannot be resolved


                                       6




<PAGE>

by the  parties,  Licensee  and  Time  Broker  will  select a  certified  public
accountant  knowledgeable in the broadcast industry to resolve the dispute.  The
parties  will use their  commercially  reasonable  best efforts in good faith to
cause to occur as  expeditiously  as possible the  appointment  of the certified
public  accountant,  and once  appointed,  the  resolution  of the dispute.  The
decision  of such  accountant  shall be binding on the  parties  and  subject to
judicial  enforcement.  One-half of the cost of the accountant  shall be paid by
each party.

         4.3.  Accounts  Receivable.  On the  Commencement  Date,  Licensee will
deliver to Time Broker a list of Licensee's accounts receivable arising from the
operation of the Station  prior to the  Commencement  Date (the  "Receivables").
Time  Broker  shall use  commercially  reasonable  best  efforts to collect  the
Receivables  after  the  Commencement  Date for a period  of 120 days  after the
Commencement Date (the "Collection Period"). All amounts received by Time Broker
from payors with accounts  included among the Receivables shall be applied first
to the Receivables  unless payor designates  otherwise.  For each calendar month
during the  Collection  Period,  within 10 days of the end of each such calendar
month Time Broker will deliver to Licensee a monthly  accounting of  collections
made with respect to the Receivables and remit to Licensee all amounts collected
by  Time  Broker  on  account  of  the  Receivables.  At the  conclusion  of the
Collection Period, any remaining Receivables shall be reassigned to Licensee and
Time  Broker  shall have no further  obligation  with  respect to any  remaining
Receivables.  If, during the  Collection  Period,  a dispute arises between Time
Broker and a debtor with respect to an account  included among the  Receivables,
Time Broker may return that  account to Licensee  and collect  from such account
debtor  the  amounts  owed  to Time  Broker  for  services  provided  after  the
Commencement Date.

                                  ARTICLE FIVE

                              Operation of Station
  
         Notwithstanding  any  provision  of  this  Agreement  to the  contrary,
Licensee  shall retain full authority and power with respect to the operation of
the Station during the term of this Agreement. The parties agree and acknowledge
that Licensee's  continued control of the Station is an essential element of the
continuing validity and legality of this Agreement.  Accordingly, Licensee shall
employ  personnel  (not  less than one  full-time  managerial  employee  and the
equivalent  of one  full-time  staff  employee)  as Licensee  determines  may be
necessary to fulfill its obligations as a licensee under the  Communications Act
of 1934,  as amended  (the  "Communications  Act").  Licensee  shall retain full
authority  and control over the  policies,  programming  and  operations  of the
Station,  including,   without  limitation,  the  decision  whether  to  preempt
programming  in  accordance  with Section 2.4 hereof.  Licensee  shall have full
responsibility to effectuate compliance with the Communications Act and with FCC
rules, regulations and policies.




                                       7


<PAGE>




                                   ARTICLE SIX

                             Facilities and License
  
         6.1.  Facilities.  Effective as of the Commencement Date and subject to
Section 12.11  hereof,  Time Broker shall be  responsible  for  maintaining  all
studio and office space and other  facilities and all equipment and  furnishings
contained  therein in the production and  broadcasting  of the  Programming  and
sales and administration relating thereto.

         6.2.  License  to  Use  Station  Call  Letters.  Effective  as  of  the
Commencement  Date,  Licensee  grants Time Broker a license to use the Station's
call letters "WNFT" in the production and  broadcasting  of the  Programming and
sales and  administration  relating  thereto,  in accordance  with the terms set
forth in this Section 6.2 (the "Call Letters License"). The Call Letters License
shall have a term beginning on the Commencement Date and ending upon the earlier
of (a)  termination  of this  Agreement  and (b) the  Closing (as defined in the
Purchase Agreement).

                                  ARTICLE SEVEN

                                 Indemnification
  
         7.1.  Indemnification  Rights.  Each  party  will  indemnify  and  hold
harmless the other party,  and the directors,  officers,  employees,  agents and
affiliates  of such  other  party,  from  and  against  any  and all  liability,
including,  without  limitation,  reasonable  attorneys'  fees arising out of or
incident  to (i) any  breach  by such  party of a  representation,  warranty  or
covenant made herein,  (ii) the programming  produced or furnished by such party
hereunder,  or (iii) the conduct of such party,  its  employees,  contractors or
agents (including  negligence) in performing its or their obligations hereunder.
Without limiting the generality of the foregoing,  each party will indemnify and
hold harmless the other party, and the directors,  officers,  employees,  agents
and  affiliates of such other party,  from and against any and all liability for
libel,  slander,  infringement  of trademarks,  trade names,  or program titles,
violation of rights of privacy,  and  infringement of copyrights and proprietary
rights resulting from the programming produced or furnished by it hereunder. The
parties' indemnification  obligations hereunder shall survive any termination or
expiration of this Agreement for a period of one year.

         7.2.  Procedures.  In the case of any claim  asserted  by a third party
against  a  party  entitled  to   indemnification   under  this  Agreement  (the
"Indemnified  Party"), a notice of claim shall be given by the Indemnified Party
to the party  required to provide  indemnification  (the  "Indemnifying  Party")
promptly after such Indemnified Party has actual knowledge of any




                                       8


<PAGE>


claim as to which  indemnity  may be sought,  and the  Indemnified  Party  shall
permit the  Indemnifying  Party (at the expense of such  Indemnifying  Party) to
assume the defense of any claim or any litigation resulting therefrom,  provided
that the Indemnified  Party may participate in such defense at such  Indemnified
Party's  expense and the omission by any  Indemnified  Party to give a notice of
claim shall not relieve the Indemnifying Party of its indemnification obligation
under  this  Agreement  except to the  extent  that such  Indemnifying  Party is
materially  damaged as a result of such failure to give notice.  Except with the
prior written  consent of the Indemnified  Party, no Indemnifying  Party, in the
defense of any such claim or litigation,  shall consent to entry of any judgment
or order,  interim or otherwise,  or enter into any settlement that provides for
injunctive or other  nonmonetary  relief affecting the Indemnified Party or that
does not include as an unconditional term thereof the giving by each claimant or
plaintiff to such Indemnified Party of a release from all liability with respect
to such  claim or  litigation.  In the event the  Indemnifying  Party  elects to
assume the defense of such claim or litigation, the Indemnifying Party shall not
be liable to the  Indemnified  Party under this  Article  Seven for any legal or
other expenses subsequently incurred by the Indemnified Party in connection with
the defense thereof, provided that the Indemnified Party shall have the right to
employ  counsel to represent it if either (a) such claim or litigation  involves
remedies  other than  monetary  damages and such  remedies,  in the  Indemnified
Party's  reasonable  judgment,  could  have a  material  adverse  effect on such
Indemnified  Party or (b) the Indemnified  Party may have available to it one or
more defenses or counterclaims  which are inconsistent with one or more of those
claims alleged by the  Indemnifying  Party. If the  Indemnifying  Party does not
elect to assume the defense of such claim or litigation,  the Indemnified  Party
shall act  reasonably and in accordance  with its good faith  business  judgment
with  respect  thereto,  and shall not  settle or  compromise  any such claim or
litigation  without the consent of the Indemnifying  Party,  which consent shall
not be unreasonably  withheld.  The parties hereto agree to render to each other
such assistance as may reasonably be requested in order to insure the proper and
adequate defense of any such claim or litigation.

                                  ARTICLE EIGHT

                                     Default
  
         8.1.  Events of Default.  The  following,  after the  expiration of the
applicable cure periods specified in Section 8.2 hereof, shall constitute Events
of Default under this Agreement:

         (a) Default in Covenants.  Time  Broker's or Licensee's  default in the
observance  or  performance  of any  material  covenant,  condition or agreement
contained herein;




                                       9



<PAGE>


         (b) Breach of Representation  or Warranty.  Time Broker's or Licensee's
material breach of any  representation  or warranty made by it herein, or in any
certificate or document furnished pursuant to the provisions hereof, which shall
prove to have been false or  misleading  in any material  respect as of the time
made or furnished; or

         (c) Default under the Purchase  Agreement.  At any time during the term
of this Agreement in which the Purchase  Agreement is in effect,  the occurrence
of an event of default under the Purchase Agreement.

         8.2.  Cure  Periods.  An Event of  Default  shall not be deemed to have
occurred  until  15  days  after  the  non-defaulting  party  has  provided  the
defaulting party with written notice  specifying the event or events that if not
cured would  constitute  an Event of Default,  and such event has not been cured
within such time period.

                                  ARTICLE NINE

                                   Termination
  
         This Agreement shall automatically terminate upon the expiration of the
term of this  Agreement as set forth in Section 1.3 hereof.  In  addition,  this
Agreement shall terminate as provided below.

         9.1.  Termination Upon Default. In addition to other remedies available
to the parties  hereto at law or equity,  and in  addition  to other  provisions
providing for termination  herein, this Agreement may be terminated as set forth
below by either  Licensee or Time  Broker by written  notice to the other if the
party  seeking to  terminate is not then in material  default or breach  hereof,
upon either:

         (a) an uncured Event of Default; or

         (b) a change in FCC rules,  policies or precedent that would cause this
Agreement to be in violation thereof and such change is final, in effect and has
not been stayed, and the parties are unable, after negotiating in good faith for
at least 30 days,  to modify  this  Agreement  to comply  with the change in FCC
rules,  policies or precedent;  provided,  however, that either party's right to
terminate  this  Agreement  pursuant  to this  Section  9.1(b) may be  exercised
regardless of whether such party is in default hereunder.





                                       10


<PAGE>




         9.2. Certain Matters Upon Termination. (a) Upon any termination of this
Agreement (any such date, a "Termination Date"),  Licensee shall have no further
obligation  to  provide  to  Time  Broker  any   broadcast   time  or  broadcast
transmission  facilities,  except that  Licensee  shall  assume and perform Time
Broker's obligations to broadcast  commercial  advertising after the Termination
Date and receive all revenues  attributable to all such  advertising,  provided,
that (i) each of the contracts or agreements  relating to such advertising to be
assumed by Licensee is terminable by Licensee  within 30 days of the Termination
Date and (ii) with respect to trade and barter agreements, no net negative trade
balance  exists  in  favor of such  advertisers  in  excess  of  $20,000  in the
aggregate.  Except as set forth in the preceding sentence, upon any termination,
Time Broker shall be responsible for all debts and obligations of Time Broker to
third  parties based upon the purchase of air time on the Station and the use of
Licensee's transmission facilities relating to the Station,  including,  without
limitation, accounts payable.

         (b) If this Agreement  terminates other than as a result of the Closing
(as defined in the Purchase Agreement), Time Broker shall (i) assign to Licensee
and  Licensee  shall  assume  the  Contracts  in  effect  on the  date  of  such
termination or expiration;  (ii) be responsible for only those obligations under
the  Contracts  arising  on or after  the  Commencement  Date  and  prior to the
termination  of this  Agreement;  and (iii) be  responsible  for  collecting the
accounts  receivable  arising from Time Broker's  operation of the Station on or
after the Commencement Date ("Time Broker's Receivables").  In addition, if this
Agreement  terminates  other  than as a result of the  Closing,  Licensee  shall
reimburse  Time  Broker  for sales  commissions  paid by Time  Broker  for sales
relating to Time Sales Agreements to the extent that the revenue from such sales
relates to commercial  announcements  to be broadcast  after the  termination of
this Agreement.

         (c) Notwithstanding  anything in Section 7.1 hereof to the contrary, no
expiration or termination of this  Agreement  shall  terminate the obligation of
each party to indemnify  the other for claims under Section 7 hereof or limit or
impair any party's  rights to receive  payments  due and owing  hereunder  on or
before the date of such termination.

                                   ARTICLE TEN

                                    Remedies
   
         In  addition  to a party's  rights  of  termination  hereunder  (and in
addition to any other  remedies  available to it or provided  under law), in the
event of an uncured Event of Default with respect to either party, the other may
seek specific performance of this Agreement,  in which case the defaulting party
shall  waive the  defense in any such suit that the other  party has an adequate
remedy  at law and  interpose  no  opposition,  legal  or  otherwise,  as to the
propriety of specific performance as a remedy hereunder.



                                       11



<PAGE>



                                 ARTICLE ELEVEN

        Certain Representations, Warranties and Covenants of the Parties
   
         11.1.  Representations,  Warranties and Covenants of Time Broker.  Time
Broker hereby  represents and warrants to Licensee that Time Broker is qualified
in accordance with the  Communications  Act and the published rules and policies
of the FCC to enter into this  Agreement and provide  Programming on the Station
in accordance  with its terms.  Between the date hereof and the  termination  of
this Agreement either by the Closing under the Purchase Agreement or the earlier
termination in accordance  with Article 9 hereof,  Time Broker will not take any
action that Time Broker  knows,  or has reason to believe,  would  disqualify it
from discharging its obligations pursuant to this Agreement.

         11.2.  Covenant of Licensee.  Licensee hereby  covenants to Time Broker
that during the term hereof,  (i) Licensee  shall take no action which will have
the effect of reducing the effective  radiated power and the current coverage of
the Station,  except in connection  with  necessary  maintenance  of or near the
transmission  facilities of the Station and (ii)  Licensee  shall not enter into
any contract or advertising arrangement on or after the Commencement Date except
with the prior written  consent of Time Broker or in accordance with Section 1.3
or 2.4 hereof.

                                 ARTICLE TWELVE

                                  Miscellaneous
   
         12.1. Notices. All notices,  requests, demands and other communications
hereunder  shall be in  writing  and shall be deemed to have been duly  given or
made as  follows:  (a) if sent by  registered  or  certified  mail in the United
States  return  receipt  requested,  upon  receipt;  (b) if  sent  by  reputable
overnight air courier (such as DHL or Federal Express),  two business days after
deposit with such  courier;  (c) if sent by fax,  with a copy mailed on the same
day in the manner provided in (a) or (b) above,  when transmitted and receipt is
confirmed by telephone; or (d) if otherwise actually personally delivered,  when
delivered, and shall be addressed as follows:





                                       12


<PAGE>


                If to Licensee:

                      Greater Boston Radio, Inc.
                      c/o Greater Media, Inc.
                      P.O. Box 1059
                      Two Kennedy Boulevard
                      East Brunswick, New Jersey  08816
                      Attention:  Barbara Burns
                      Phone:  (908) 247-6161
                      Fax:    (908) 247-4956

                with a copy to:

                      Debevoise & Plimpton
                      875 Third Avenue
                      New York, New York  10022
                      Attention:  Richard D. Bohm
                      Phone:  (212) 909-6226
                      Fax:     (212) 909-6836

                If to Time Broker:

                      American Radio Systems Corporation
                      116 Huntington Avenue
                      Boston, Massachusetts  02116
                      Attention:  Michael B. Milsom
                      Phone:  (617) 375-7500
                      Fax:  (617) 375-7575

                with a copy to:

                      Dow, Lohnes & Albertson, PLLC
                      1200 New Hampshire  Avenue, N.W.
                      Suite 800
                      Washington, D.C.  20036-6802
                      Attention:  John T. Byrnes, Jr.
                      Phone:  (202) 776-2000
                      Fax:  (202) 776-2222

or to such other  address or to such other person as the party to whom notice is
given may have  previously  furnished  to the other in writing in the manner set
forth above.



                                       13



<PAGE>



         12.2.  Entire  Agreement.   This  Agreement  (including  the  Schedules
hereto),  together  with  the  Purchase  Agreement  and the  Schedules  thereto,
constitute the entire agreement between Time Broker and Licensee with respect to
the subject matter hereof and supersede all prior agreements and understandings,
oral and written,  between Time Broker and Licensee  with respect to the subject
matter hereof.

         12.3. Assignment.  Neither this Agreement nor any rights or obligations
hereunder may be assigned by Licensee or Time Broker without the written consent
of the other party hereto.

         12.4. No Third Party  Beneficiaries.  Nothing in this  Agreement  shall
confer any rights upon any person or entity  other than the  parties  hereto and
their respective permitted successors and assigns.

         12.5.  Amendment;  Waiver. No amendment,  waiver of compliance with any
provision or condition  hereof,  or consent  pursuant to this Agreement shall be
effective  unless  evidenced  by an  instrument  in writing  signed by the party
against whom enforcement of any amendment, waiver or consent is sought.

         12.6.  Interpretation.  The section  headings in this Agreement are for
convenience  of  reference  only and shall not be deemed to alter or affect  the
meaning or interpretation of any provision hereof.

         12.7. Severability. Whenever possible, each provision of this Agreement
shall be  interpreted  in such a  manner  as to be  effective  and  valid  under
applicable law, and if any provision of this Agreement is interpreted by a court
of competent jurisdiction and found to be invalid or unenforceable,  neither the
enforceability  nor the  validity of such  provisions  with respect to any other
facts  or  under  any  other  circumstances  shall  thereby  be  impaired.   The
unenforceability  or  invalidity  of  any  provision  shall  not  result  in the
interpretation  of the remainder of this Agreement,  or any Section hereof, in a
manner inconsistent with intent of the parties as evidenced by the terms of this
Agreement, or such Section, as a whole.

         12.8. Counterparts. This Agreement may be executed in two counterparts,
each of which shall be deemed to be an original and both of which together shall
be deemed to be one and the same agreement.

         12.9. Governing Law; Jurisdiction.  The construction and performance of
this  Agreement  shall be governed by the laws of the State of New York  without
regard to its  principles of conflict of laws,  and the state and federal courts
of New York shall have  exclusive  jurisdiction  over any  controversy  or claim
arising out of or relating to this Agreement.


                                       14




<PAGE>


         12.10.  No Joint  Venture.  The  Licensee  and Time  Broker  agree that
nothing herein shall constitute a joint venture between them.

         12.11.  Damage to Station. In the event of damage or destruction to the
Station (other than damage or destruction caused by Time Broker), Licensee shall
proceed to repair,  replace or restore  the Station to its former  condition  as
promptly as is commercially reasonable.

         12.12.  Noninterference.  During  the term of this  Agreement,  neither
Licensee nor any of its  employees  shall take any actions that might impair the
operations of Time Broker  conducted  hereunder,  except to the extent expressly
contemplated by this Agreement or as otherwise required by law.

         12.13.  Regulatory  Changes.  In the event of any order or decree of an
administrative  agency or court of competent  jurisdiction,  including,  without
limitation,  any material change or  clarification  in FCC rules,  policies,  or
precedent,  that would  cause  this  Agreement  to be  invalid  or  violate  any
applicable  law, and such order or decree has become  effective and has not been
stayed,  the parties  will use their  respective  commercially  reasonable  best
efforts  and  negotiate  in good faith to modify this  Agreement  to the minimum
extent  necessary  so as to comply  with such order or decree  without  material
economic  detriment to either party, and this Agreement,  as so modified,  shall
then continue in full force and effect. In the event that the parties are unable
to agree upon a modification  of this Agreement so as to cause it to comply with
such order or decree without material  economic  detriment to either party, then
this Agreement shall be terminated pursuant to Section 9.1(b) hereof.

         12.14.  Publicity.  Except as  required by  applicable  law or with the
other party's express written consent,  neither Time Broker nor Licensee nor any
of their respective  affiliates shall issue any press release or make any public
statement  (oral or written)  regarding the  transactions  contemplated  by this
Agreement.




                                       15




<PAGE>




         IN WITNESS WHEREOF,  the parties have executed this Agreement as of the
date first above written.


                                  GREATER BOSTON RADIO, INC.


                                  By: _____________________________
                                        Name:
                                        Title:


                                  AMERICAN RADIO SYSTEMS
                                  CORPORATION


                                  By: _____________________________
                                        Name:
                                        Title:








                                       16



<PAGE>


                                  SCHEDULE 1.1

                                   Programming

           The  Programming  shall  consist  of up to 165  hours per week on the
Station  in a format to be chosen by Time  Broker,  subject to Section 2 of this
Agreement.  The Programming shall include (a) news and weather information;  (b)
public service  announcements  (including,  at Licensee's directive from time to
time, a reasonable  number of public  service  announcements  of local  interest
supplied by Licensee or produced by Time Broker under  Licensee's  supervision);
(c) an  announcement  in form  sufficient  to meet  the  station  identification
requirements  of the FCC at the  beginning  of  each  hour;  and  (d) any  other
announcement  that may be required by applicable  law or regulation  (including,
but not limited  to, EBS  tests).  Time  Broker  shall  maintain  and deliver to
Licensee copies of all operating and programming information, including, without
limitation,   information  concerning  portions  of  the  Programming  that  are
responsive to issues of public importance identified to Time Broker by Licensee,
EBS  announcements,  and  station  operating  logs,  necessary  for  Licensee to
maintain its FCC Public File,  and all other records  required to be kept by FCC
rule or policy.  Time  Broker  shall have the sole and  exclusive  right to sell
advertising  to be included in the  Programming  and shall be entitled to retain
all the revenues derived from the sale thereof, provided, however, that Licensee
shall be  entitled  to sell such time as it deems  necessary  to comply with the
political  advertising  rules of the FCC in the event the  Programming  does not
comply with such rules.

           Time Broker shall produce under  Licensee's  supervision  and present
three hours a week on the Station  public affairs  programming  that responds to
the needs and interests of listeners in the Station's community of license. Time
Broker may present such public  affairs  programming  between 5:00 A.M. and 8:00
A.M. on Sundays or at such other times as the public interest may require in the
reasonable judgement of Licensee.








<PAGE>



                                  SCHEDULE 2.1

                               Programming Policy

           Time  Broker  and  Licensee  shall  cooperate  with each other in the
broadcast of programming of the highest possible standard of excellence. Without
limiting the generality of the foregoing, the parties will observe the following
policies in the preparation, writing and production of their own (non-syndicated
or network) programs:

                  I.       Respectful  of Faiths.  The subject of  religion  and
                           references to  particular  faiths and tenets shall be
                           treated with respect at all times.

                  II.      Controversial Issues. Any discussion of controversial
                           issues  of  public  importance  shall  be  reasonably
                           balanced  with  the   presentation   of   contrasting
                           viewpoints in the course of overall  programming;  no
                           attacks on the honesty,  integrity,  or like personal
                           qualities of any person or group of persons  shall be
                           made; and Station  programs  (other than public forum
                           or talk  features)  are not to be used as a forum for
                           editorializing about individual  candidates.  If such
                           events  occur,  Licensee may require that  responsive
                           programming  be aired.  In the event  that a statute,
                           regulation  or policy is adopted  that  requires  the
                           airing of responsive programming,  Time Broker agrees
                           to comply with such statute, regulation or policy and
                           will prepare such responsive programming.

                  III.     Donation Solicitation.  Requests for donations in the
                           form of a specific  amount shall not be made if there
                           is any  suggestion  that such donation will result in
                           miracles,  physical  cures or  life-long  prosperity.
                           However, statements generally requesting donations to
                           support a broadcast or church are permitted.

                  IV.      Treatment  of  Parapsychology.   The  advertising  or
                           promotion of fortune telling,  occultism,  astrology,
                           phrenology,     palm    reading,    or    numerology,
                           mind-reading,  character readings, or subjects of the
                           like nature will not be broadcast.

                  V.       No  Ministerial  Solicitations.  No  invitations by a
                           minister or other individual appearing on the program
                           to  have  listeners  come  and  visit  him or her for
                           consultation  or the  like  shall  be  made  if  such
                           invitation  implies that the  listeners  will receive
                           consideration, monetary gain, or total physical cures
                           for illness.


<PAGE>


                  VI.      No Vending of Miracles.  Any exhortation to listeners
                           to bring  money to a church  affair or service  shall
                           not contain any suggestion  that  miracles,  physical
                           cures, or prosperity will result.

                  VII.     Sale of Religious Artifacts. The offering for sale of
                           religious   artifacts   or  other   items  for  which
                           listeners would send money is prohibited  unless such
                           items are normally  available in ordinary commerce or
                           are  clearly  being  sold  for  proper   fund-raising
                           purposes.

                  VIII.    No Miracle Solicitation.  Any invitation to listeners
                           to meet at  places  other  than a  church  and/or  to
                           attend  other than  regular  services  of a church is
                           prohibited  if the  invitation,  meeting,  or service
                           contains any claim that  miracles,  physical cures or
                           prosperity will result.

                  IX.      No  Plugola or Payola.  The  mention of any  business
                           activity or "plug" for any commercial,  professional,
                           or other related endeavor,  except where contained in
                           an  actual  commercial  message  of  a  sponsor,   or
                           otherwise lawful, is prohibited.

                  X.       No  Gambling.   References  to  "dream   books,"  the
                           "straight   line,"  or  other   direct  or   indirect
                           descriptions   or   solicitations   relative  to  the
                           "numbers  game," or the  "polity  game," or any other
                           form of gambling are prohibited.

                  XI.      Election  Procedures.  At  least 15 days  before  the
                           start  of any  lowest-unit-  charge  period  for  any
                           primary or general  election,  Time Broker will clear
                           with  Licensee's  manager  the rates Time Broker will
                           charge for time to be sold to  candidates  for public
                           office or to any other  party  entitled to the lowest
                           unit charge to make certain the rates  charged are in
                           conformance  with  applicable law and Station policy.
                           Time Broker shall also clear with Licensee's  manager
                           its forms for  disclosure  of  political  time  sales
                           practices and rates.

                  XII.     Required  Announcements.  Time Broker shall broadcast
                           (i) an announcement in form  satisfactory to Licensee
                           at  the  beginning  of  each  hour  to  identify  the
                           Station,  (ii) an  announcement  at the  beginning of
                           each broadcast day or appropriate broadcast period to
                           indicate that program time has been purchased by Time
                           Broker and (iii) any other  announcement  that may be
                           required by law, regulation or Station policy.

 


                                       2




<PAGE>

                  XIII.    Commercial Record Keeping.  No commercial messages or
                           "plugs"  (other  than  references  to  Time  Broker's
                           Boston-area  stations and its programs and  promotion
                           and other  activities)  shall be made in  programming
                           presented  over the  Station  with  reference  to any
                           business venture,  profit-making  activity,  or other
                           interest (other than noncommercial  announcements for
                           bona  fide  charities,  church  activities,  or other
                           public  service  activities)  in which Time Broker or
                           its  employees  is  or  are  directly  or  indirectly
                           interested  without the same having been  approved in
                           advance by Licensee's manager or such broadcast being
                           announced and logged as sponsored.

                  XIV.     No  Illegal   Announcements.   No   announcement   or
                           promotion  prohibited  by  federal  or  state  law or
                           regulation  of any lottery or game shall be made over
                           the Station.

                  XV.      Licensee  Discretion  Paramount.  In accordance  with
                           Licensee's  responsibility  under the  Communications
                           Act  and  the  rules  and  regulations  of  the  FCC,
                           Licensee  reserves  the right to reject or  terminate
                           any  advertising or programming  being presented over
                           the Station which is in conflict with Station  policy
                           or which in Licensee's  sole but reasonable  judgment
                           would not serve the public interest.

                  XVI.     Programming  Prohibitions.   Time  Broker  shall  not
                           knowingly  broadcast any of the following programs or
                           announcements:

                           A.       False Claims.  False or  unwarranted  claims
                                    for any product or service.

                           B.       Unfair  Imitation.  Infringements of another
                                    advertiser's  rights  through  plagiarism or
                                    unfair  imitation of either  program idea or
                                    copy, or any other unfair competition.

                           C.       Commercial    Disparagement.    Any   unfair
                                    disparagement  of competitors or competitive
                                    goods.

                           D.       Slander,   Obscenity  and   Indecency.   Any
                                    programs   or    announcements    that   are
                                    slanderous,   obscene  or  indecent  (except
                                    during   the  safe   harbor   for   indecent
                                    programming established by the FCC).

                           E.       Unauthenticated      Testimonials.       Any
                                    testimonials which cannot be authenticated.

                           


                                       3




<PAGE>

                           F.       Advertising.   Any  advertising   matter  or
                                    announcement  which may,  in the  opinion of
                                    Licensee, be injurious or prejudicial to the
                                    interests of the public or the  Station,  or
                                    to honest advertising and reputable business
                                    in general

                           G.       Contests.  Any contests or promotions  which
                                    are in any way  misleading  or  constitute a
                                    public  nuisance  or are  likely  to lead to
                                    injury to persons or property.

                           H.       Telephone Conversations.  Any programming in
                                    violation  of  any  statute,  regulation  or
                                    policy,   including,   without   limitation,
                                    Section  73.1206 of the FCC's rules,  or any
                                    successor   regulation,   dealing  with  the
                                    taping   and/or   broadcast   of   telephone
                                    conversations.

           The  parties  may  jointly  waive any of the  foregoing  policies  in
specific  instances  if,  in their  opinion,  good  broadcasting  in the  public
interest is served.

           In any case  where  obvious  questions  of policy  or  interpretation
arise, Time Broker will attempt in good faith to submit the same to Licensee for
decision before making any commitments in connection therewith.




                                       4




                                                                   Exhibit 10.11




                            ASSET PURCHASE AGREEMENT


         This ASSET PURCHASE  AGREEMENT is dated May ____,  1997, by and between
Paxson Communications of West Palm Beach, Inc., a Florida corporation ("Buyer"),
and American Radio Systems Corporation, a Delaware corporation ("Seller").

                                P R E M I S E S:

         Seller is the owner of and operator of, and its wholly owned subsidiary
American Radio Systems License Corp., a Delaware  corporation  ("License Corp.")
is the licensee of, radio stations WKGR(FM), Ft. Pierce,  WOLL(FM) Riviera Beach
and  WEAT(AM),  West Palm Beach,  and  WBZT(AM),  West Palm Beach,  Florida (the
"Stations") pursuant to licenses issued by the Federal Communications Commission
(the "FCC").

         Buyer is a subsidiary of Paxson Communications  Corporation, a Delaware
corporation ("Paxson").

         Seller  desires to sell,  and Buyer  wishes to buy,  substantially  all
assets  used or  useful  in the  operation  of the  Stations  and the  broadcast
business  made  possible  thereby for the price and on the terms and  conditions
hereafter set forth.

                                   AGREEMENTS:

         In consideration of the above premises and the covenants and agreements
contained herein, Buyer and Seller agree as follows:


                                      


<PAGE>



                                    SECTION 1
                                  DEFINED TERMS

         The  following  terms  shall  have  the  following   meanings  in  this
Agreement:

         1.1  "Accounts  Receivable"  means the rights of Seller to payment  for
services rendered (including sale of time or talent on the Stations for cash) by
Seller prior to the Closing  Date as reflected on the billing  records of Seller
relating to the Stations.

         1.2 "Assets" means the tangible and intangible assets owned and used in
connection  with  the  conduct  of  the  business  or  operations  of any of the
Stations, being such assets as are specifically set forth in Section 2.1 herein,
which are being sold, transferred,  or otherwise conveyed to Buyer hereunder, as
specified in detail in Section  2.1,  together  with all tangible or  intangible
assets that are acquired by Seller  between the date of this  Agreement  and the
Closing Date for use in connection  with the business or operation of any of the
Stations.

         1.3 "Assumed  Contracts" means (i) all Contracts listed in Schedule 3.7
that are  designated  to  indicate  that they will be  assumed by Buyer upon its
purchase of the  Stations,  (ii) any  Contracts  entered into by, or assigned to
Seller in the  ordinary  course of  business  between  the date  hereof  and the
Closing Date that Buyer  agrees in writing to assume,  (iii) all  Contracts,  in
existence  on the date of this  Agreement  that meet the  criteria  set forth in
Section 3.7 (i) - (iii) for exclusion  from Schedule 3.7, and (iv) all Contracts
with advertisers for the sale of time or talent on the Stations for cash entered
into in the ordinary course of business.

         1.4 "Closing" means the consummation of the transaction contemplated by
this Agreement in accordance with the provisions of Section 8.

         1.5 "Closing Date" means the date on which the Closing occurs.

         1.6  "Consents"  means all of the  consents,  permits or  approvals  of
government  authorities and other third parties necessary to transfer the Assets
to Buyer  or  otherwise  to  consummate  the  transaction  contemplated  hereby,
including  without  limitation  the  consents of the parties to those  Contracts
designated in Schedule 3.7 with an asterisk.

         1.7  "Contracts"  means  all  contracts,  agreements,  non-governmental
licenses  and  leases,  written  or oral  (including  any  amendments  and other
modifications  thereto)  to which  Seller is a party or which are  binding  upon
Seller that relate or are used in the business or

                                       2



<PAGE>


operations of the Stations,  and (i) which are in effect on the date hereof,  or
(ii) which are  entered  into by Seller  between the date hereto and the Closing
Date.

         1.8 "Escrow  Deposit"  shall mean the sum of One Million  Five  Hundred
Thousand Dollars ($1,500,000) held by First Union National Bank of Florida, N.A.
as Escrow  Agent  pursuant  to an Escrow  Agreement  of even date,  by and among
Buyer, Seller, and Escrow Agent in the form set forth in Schedule 1.8 hereto.

         1.9 "Excluded Assets" shall mean those assets described or set forth in
Section 2.2 herein,  in  addition  to any assets not  specifically  set forth in
Section 2.1 herein.

         1.10 "FCC Consent"  means action by the FCC granting its consent to the
assignment of the FCC Licenses to Buyer as contemplated by this Agreement.

         1.11  "FCC  Licenses"  means  all of the  licenses,  permits  and other
authorizations  issued by the FCC to Seller or License Corp. in connection  with
the conduct of the business or operations of any of the Stations.

         1.12  "Final  Order"  means  action of the FCC,  (a) which has not been
reversed,  stayed  enjoined,  set aside,  annulled  or  suspended,  and (b) with
respect to which (i) no requests have been filed for  administrative or judicial
review,  reconsideration,  appeal  or stay,  and the time  for  filing  any such
requests and for the FCC to review the action on its own motion has expired,  or
(ii) in the event of review,  reconsideration  or appeal that does not result in
the FCC  consent  being  reversed,  stayed,  enjoined,  set aside,  annulled  or
suspended, the time for further review, reconsideration or appeal has expired.

         1.13  "Intangibles"  means all  copyrights,  trademarks,  trade  names,
service marks, service names, licenses,  patents, permits, jingles,  proprietary
information, technical information and data, machinery and equipment warranties,
and other similar  intangible  property  rights and interests  (and any goodwill
associated with any of the foregoing) held or owned by Seller in connection with
the conduct of the business or  operations of any of the Stations on the date of
this Agreement,  including those listed in Schedule 3.9, and all such intangible
assets that are acquired by Seller  between the date of this  Agreement  and the
Closing Date, other than Excluded Assets.

         1.14  "Licenses"   means  all  of  the  licenses,   permits  and  other
authorizations,  including  the FCC  Licenses,  issued by the FCC,  the  Federal
Aviation   Administration  ("FAA"),  and  any

                                       3



<PAGE>



other  federal,  state or local  governmental  authorities  to Seller or License
Corp. in connection with the conduct of the business or operations of any of the
Stations.

         1.15 "Personal Property" means all of the machinery,  equipment, tools,
vehicles,  furniture,  leasehold  improvements,  office equipment,  plant, spare
parts, and other tangible  personal property which are owned or leased by Seller
and used as of the date hereof in the conduct of the business or  operations  of
any of the Stations,  including  that listed on Schedule 3.6 plus such additions
thereto between the date hereof and the Closing Date, but excluding the Excluded
Assets.

         1.16  "Purchase  Price" means the purchase  price  specified in Section
2.3.

         1.17 "Real Property" means all of the leasehold  interests,  easements,
licenses,  rights to access,  rights-of-way,  and other real property  interests
owned by Seller and used in the conduct of the business or  operations of any of
the Stations  which are  identified  on Schedule 3.5 hereof plus such  additions
thereto between the date hereof and the Closing Date.



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                                       4



<PAGE>




                                    SECTION 2
                           SALE AND PURCHASE OF ASSETS

         2.1 Agreement to Sell and Buy.  Subject to the terms and conditions set
forth in this Agreement, Seller hereby agrees to sell, transfer and deliver (and
to cause License  Corp.  to sell,  transfer and deliver) to Buyer on the Closing
Date,  and Buyer  agrees to purchase,  all of the Assets,  free and clear of any
claims,  liabilities,   mortgages,  liens,  pledges,  conditions,   charges,  or
encumbrances of any nature whatsoever  (except for those liens for current taxes
not yet due and payable), more specifically described as follows:

                  (a)      The Personal Property;

                  (b)      The Real Property;

                  (c)      The Licenses;

                  (d)      The Assumed Contracts;

                  (e) All  intangibles  and all other  information  and  similar
intangible  assets  relating to any of the Stations,  including  those listed in
Schedule 3.9 hereto;

                  (f) All of the Seller's proprietary information,  that relates
to any of the Stations, including without limitation,  technical information and
data, machinery and equipment warranties, maps, computer discs and tapes, plans,
diagrams,  blueprints,  and  schematics,  including  filings  with the FCC which
relate to the Stations, if any;

                  (g) All choses in action and rights under warranties of Seller
relating to any of the Stations or any of the Assets, if any;

                  (h)  All  books  and  records  relating  to  the  business  or
operations  of any of the  Stations,  including  executed  copies of the Assumed
Contracts, and all records required by the FCC to be kept.

                                       5



<PAGE>



         2.2  Excluded  Assets.  The Assets shall  exclude the assets  listed on
Schedule 2.2 and the following assets:

                  (a) Seller's cash on hand as of the Closing Date and all other
cash  in any of  Seller's  bank or  savings  accounts;  any  and  all  insurance
policies, letters of credit, or other similar items and any cash surrender value
in regard thereto;  and any stocks,  bonds,  certificates of deposit and similar
investments.

                  (b) Any Contracts other than the Assumed Contracts;

                  (c) Seller's books and records related to internal matters and
financial relationships with Seller's lenders;

                  (d) Any claims,  rights and  interest in and to any refunds of
federal,  state or local franchise,  income or other taxes or fees of any nature
whatsoever for periods prior to the Closing Date;

                  (e) Any pension, profit-sharing or employee benefit plans, and
any employment or collective bargaining agreement;

                  (f) The Accounts Receivable;

                  (g) Subject to Section 6.10, Tthe Seller's  current tower site
including  real estate,  improvements  and personal  property for radio  station
WBZT(AM) located at 4763 10th Avenue North, Lake Worth, Florida; and

                  (h) Any assets  that are  disposed of between the date of this
Agreement  and the Closing Date in  compliance  with  Section  5.1(A)(3) of this
Agreement..

         2.3 Purchase Price.

                  (a) The Purchase Price shall be  Thirty-Three  Million Dollars
($33,000,000),  as adjusted  pursuant to Section 2.4, plus the fair market value
of the  assets to be  conveyed  to Seller  pursuant  to Section  2.3(b).  At the
Closing, Buyer shall pay or cause to be paid to or for the account of Seller the
Purchase  Price as adjusted by the estimated  adjustments  set forth in Seller's
preliminary  settlement  statement referred to in Section 2.4, less that portion
of the Purchase  Price  consisting  of the fair market value of the assets to be
conveyed  to Seller  pursuant  to  Section  2.3(b)  and less any  portion of the
Purchase Price that Buyer is entitled to withhold  pursuant to Section  6.10(the
"Estimated  Purchase Price") by federal wire transfer of same-day funds pursuant
to wire  instructions  which shall be  delivered by Seller to Buyer at least two
days prior to the Closing Date. The Purchase Price shall be allocated  among the
tangible and intangible  assets,  including  goodwill and license value,  of the
Stations,   in  accordance  with  an  independent  appraisal

                                       6



<PAGE>



undertaken  by an  independent  appraiser  reasonably  acceptable  to Seller and
retained by the Buyer.

                  (b) In  addition  to the am unt set  forth in  Section  2.3(a)
above,  the Buyer shall convey or cause to be conveyed to Seller,  as additional
consideration at Closing, the assets set forth in Schedule 2.3 (b) hereto.

         2.4 Adjustments  and Prorations.  The Purchase Price shall be decreased
by the product of 17.37 times the amount,  if any, by which  Broadcast Cash Flow
(as  defined  in  Section  7.1(G))  of the  Stations  for the  period  of twelve
consecutive calendar months ending immediately prior to the Closing Date is less
than $1,900,000.  The Purchase Price shall be increased or decreased as required
to effectuate the proration of revenues and expenses as provided in this Section
2.4. All revenues  arising from the Stations up until  midnight on the day prior
to the  Closing  Date,  and all  expenses  arising  from the  Stations  up until
midnight on the day prior to the Closing  Date,  including  business and license
fees (including any retroactive adjustments thereof),  utility charges, real and
personal  property  taxes and  assessments  levied  against the Assets,  accrued
employee  benefits such as vacation time (but excluding sick leave,  which shall
not be prorated) for any employee of any of the Stations who becomes an employee
of Buyer  on the  Closing  Date,  property  and  equipment  rentals,  applicable
copyright  or other fees,  sales and service  charges,  taxes  (except for taxes
arising  from the  transfer of the Assets  hereunder),  and similar  prepaid and
deferred items, shall be prorated between Buyer and Seller in accordance
with the principle  that Seller shall  receive all revenues,  and all refunds to
Seller and deposits of Seller held by third  parties,  and shall be  responsible
for all expenses,  costs and liabilities  allocable in accordance with generally
accepted  accounting  principles to the conduct of the business or operations of
the Stations for the period prior to the Closing  Date,  and Buyer shall receive
all revenues and shall be responsible  for all expenses,  costs and  obligations
allocable in accordance  with generally  accepted  accounting  principles to the
conduct of the  business or  operations  of the Stations on the Closing Date and
for the period  thereafter.  Buyer shall receive  credit to the extent the value
(as calculated in Seller's financial  statements  consistent with past practice)
of any and all advertising  time to be run following the Closing for which trade
or barter  consideration  has been  received by the Seller  prior to the Closing
exceeds Eighty Thousand Dollars ($80,000.00).

                                       7



<PAGE>



                  A. Any adjustments or prorations will, insofar as feasible, be
determined and paid on the Closing Date, with final settlement and payment being
made in accordance with the procedures set forth in Section 2.4B.

                  B. Within sixty (60) days after the Closing Date,  Buyer shall
deliver to Seller a certificate  (the "Closing  Certificate"),  signed by Buyer,
providing a compilation of the adjustments and prorations to be made pursuant to
this  Section  2.4,  together  with  such  supporting  evidence  as  Seller  may
reasonably  request.  If Seller shall conclude that the Closing Certificate does
not  accurately  reflect the  adjustments  and prorations to be made pursuant to
this Section 2.4, Seller shall, within thirty (30) days after its receipt of the
Closing Certificate, provide to Buyer its written statement of any discrepancies
believed  to exist.  If  Seller  notifies  Buyer of its  acceptance  of  Buyer's
calculation of the Purchase Price or if Seller fails to deliver its statement of
discrepancies  within the 30-day  period  specified in the  preceding  sentence,
Buyer's  determination  of the Purchase Price shall be conclusive and binding on
the  parties as of the last day of the  30-day  period.  Seller and Buyer  shall
attempt  jointly to resolve the  discrepancies  within  fifteen  (15) days after
receipt of Seller's discrepancy statement,  which resolution, if achieved, shall
be binding  upon all  parties to this  Agreement  and not  subject to dispute or
review.   If  the  parties  cannot  resolve  the  discrepancy  to  their  mutual
satisfaction within such fifteen (15) day period, Buyer or Seller may elect that
the parties,  jointly designate a regional or local branch of a nationally known
independent  public  accounting  firm  to be  retained  to  review  the  Closing
Certificate together with Seller's discrepancy  statement and any other relevant
documents.  The cost of retaining such independent  public accounting firm shall
be borne equally by Buyer and Seller.  Such firm shall report its conclusions as
to adjustments pursuant to this Section 2.4, which report shall be conclusive on
both parties to this  Agreement and not subject to dispute or review.  If, after
adjustment  as  appropriate   with  respect  to  the  amount  of  the  aforesaid
adjustments  paid or  credited at the  Closing,  Buyer is  determined  to owe an
amount to  Seller,  Buyer  shall pay such  amount  to  Seller,  and if Seller is
determined  to owe an amount to Buyer,  Seller shall pay such amount  thereof to
Buyer, in each case within ten (10) days of such  determination,  but subject to
Section 6.10.

                                       8



<PAGE>



         2.5 Assumption of Liabilities and Obligations.  As of the Closing Date,
Buyer  shall  pay,  discharge  and  perform  (i)  all  of  the  obligations  and
liabilities  of Seller under the Licenses and the Assumed  Contracts  insofar as
they  relate to the tim  period on and after the  Closing  Date and arise out of
events  occurring  after the Closing Date,  (ii) all obligations and liabilities
arising out of events  occurring after the Closing related to Buyer's  ownership
of the Assets or its conduct of the business or operations of the Stations after
the Closing,  and (iii) all obligations and liabilities for which Buyer receives
a proration  adjustment under Section 2.4. All other obligations and liabilities
of Seller,  including (i) any obligations under any Contract not included in the
Assumed Contracts,  (ii) any obligations under the Assumed Contracts relating to
the time  period  prior to the  Closing  Date,  and (iii) any  claims or pending
litigation or proceedings relating to the operation of the Stations prior to the
Closing shall remain and be the obligations and liabilities solely of Seller.



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                                        9



<PAGE>




                                    SECTION 3
                    REPRESENTATIONS AND WARRANTIES OF SELLER

Seller represents and warrants to Buyer as follows:

         3.1 Organization,  Standing and Authority. Seller is a corporation duly
formed,  validly  existing and in good  standing  under the laws of the State of
Delaware and is duly  qualified to conduct its business in the State of Florida,
which is the only  jurisdiction  where the conduct of the business or operations
of the Stations requires such qualification.  Seller has all requisite corporate
power and authority (i) to own,  lease,  and use the Assets as presently  owned,
leased, and used, and (ii) to conduct the business or operations of the Stations
as presently  conducted.  Seller has all requisite corporate power and authority
to execute and deliver this Agreement and the documents contemplated hereby, and
to perform  and comply with all of the terms,  covenants  and  conditions  to be
performed and complied with by Seller, hereunder and thereunder. Seller is not a
participant in any joint venture or partnership  with any other person or entity
with respect to any part of the Stations' operations or the Assets.

         3.2 Authorization and Binding Obligation. The execution,  delivery, and
performance  of this  Agreement  by  Seller  have been  duly  authorized  by all
necessary  corporate action on the part of Seller.  This Agreement has been duly
executed and delivered by Seller and constitutes the legal,  valid,  and binding
obligation of Seller,  enforceable  against Seller in accordance  with its terms
except as the enforceability  hereof may be affected by bankruptcy,  insolvency,
or similar laws affecting creditors' rights generally, or by judicial discretion
in the enforcement of equitable remedies.

         3.3  Absence  of  Conflicting  Agreements.  Subject  to  obtaining  the
Consents  listed on Schedule 3.8, the execution,  delivery,  and  performance of
this Agreement and the documents contemplated hereby (with or without the giving
of notice,  the lapse of time,  or both):  (i) do not require the consent of any
third party;  (ii) will not conflict  with any provision of the  Certificate  of
Incorporation  or By Laws of Seller;  (iii) will not conflict with,  result in a
breach of, or constitute a default under, any law, judgment,  order,  ordinance,
decree, rule, regulation or ruling of any court or governmental instrumentality,
which is applicable to Seller; (iv) will not conflict

                                       10



<PAGE>



with, constitute grounds for termination of, result in a breach of, constitute a
default  under,  or accelerate  or permit the  acceleration  of any  performance
required by the terms of, any agreement,  instrument, license or permit to which
Seller  is a party or by  which it may be  bound;  and (v) will not  create  any
claim, liability,  mortgage, lien, pledge, condition,  charge, or encumbrance of
any nature whatsoever upon the Assets.

         3.4  Licenses.  Schedule 3.4  includes a true and complete  list of the
Licenses. Seller has delivered to Buyer true and complete copies of the Licenses
(including any and all amendments and other modifications thereto). The Licenses
were validly  issued and License Corp.  is as of the date of this  Agreement and
shall be on the Closing Date, the authorized legal holder thereof.  The Licenses
comprise all of the licenses, permits and other authorizations required from any
governmental  or regulatory  authority for the lawful conduct of the business or
operations  of the  Stations  as  presently  operated.  Seller  has no reason to
believe  that the  Licenses  will not be  renewed  by the FCC or other  granting
authority in the ordinary course.

         3.5 Title to and  Condition  of Real  Property.  Schedule  3.5 contains
complete and accurate descriptions of all the Real Property, which comprises all
real property  interests  necessary to conduct the business or operations of the
Stations as now  conducted.  Seller  holds no fee simple  interests  in any real
property necessary or used to conduct the business or operations of the Stations
as now conducted.  Seller has delivered to Buyer true and complete copies of all
leases or other material instruments  pertaining to the Real Property (including
any and all  amendments and other  modifications  of such  instruments),  all of
which  instruments  are valid,  binding and enforceable in accordance with their
terms.  Seller is not in  material  breach,  nor is any other  party in material
breach,  of the  terms  of any of such  leases  or other  instruments.  All Real
Property (i) is available  for  immediate  use in the conduct of the business or
operations of the Stations,  (ii) to Seller's knowledge after due investigation,
materially  complies as described in Schedule 3.5 with all applicable  building,
electrical and zoning codes and all  regulations of any  governmental  authority
having jurisdiction and (iii) is in satisfactory condition and repair consistent
with its present  use.  Seller has full legal and  practical  access to the Real
Property.

         3.6 Title to and  Condition  of Personal  Property.  Schedule 3.6 lists
(subject to the  provisions  of Section 6.16  hereof) all material  items of the
Personal  Property,  which  comprise


                                       11



<PAGE>


all personal property used to conduct the business or operations of the Stations
as now conducted.  Except as described in Schedule 3.6, Seller owns and has good
title to all Personal Property. None of the Personal Property owned by Seller is
subject to any security interest, mortgage, pledge, conditional sales agreement,
or other lien or encumbrance, except for (i) liens for current taxes not yet due
and payable,  and (ii) any other claims or  encumbrances  which are described in
Schedule 3.6. Except as shown in Schedule 3.6, the Personal  Property taken as a
whole  is in good  operating  condition  and  repair  (ordinary  wear  and  tear
excepted),  and is available  for immediate use in the business or operations of
the Stations, and the transmitting and studio equipment included in the Personal
Property (i) has been maintained consistent with FCC rules and regulations,  and
(ii) will permit the  Stations  and any unit  auxiliaries  thereto to operate in
accordance  with the terms of the FCC Licenses and the rules and  regulations of
the FCC,  and with all other  applicable  federal,  state  and  local  statutes,
ordinances, rules and regulations.

         3.7  Contracts.  Schedule  3.7  lists all  Contracts  except  for:  (i)
contracts  with  advertisers  for the sale of time on the  Stations for cash and
substantially  at rate card and which are not  prepaid and which may be canceled
by the Stations  without penalty on not more than thirty (30) days notice,  (ii)
miscellaneous  service contracts  terminable at will without penalty,  and (iii)
other  contracts  not  involving  either  aggregate  liabilities  under all such
contacts  exceeding Five Thousand Dollars  ($5,000) or any material  nonmonetary
obligation.  All of the Assumed Contracts are in full force and effect,  and are
valid,  binding and  enforceable in accordance  with their terms,  except as the
enforceability thereof may be affected by bankruptcy, insolvency or similar laws
affecting creditors' rights generally,  or by court-applied  equitable remedies.
Seller is not in material breach,  nor to Seller's  knowledge is any other party
in  material  breach,  of the terms of any such  Contracts  nor does there exist
under any Contract any event that,  after notice or lapse of time or both, could
constitute a material breach by any party thereto. Except for the need to obtain
the Consents  listed on Schedule 3.8,  Seller has full legal power and authority
to assign its rights  under the Assumed  Contracts to Buyer in  accordance  with
this   Agreement,   and  such   assignments   will  not  affect  the   validity,
enforceability and continuation of any of the Assumed Contracts.

                                       12



<PAGE>



         3.8  Consents.  Except for the FCC Consent  provided for in Section 6.1
and the other Consents listed on Schedule 3.8, no consent,  approval,  permit or
authorization  of,  or  declaration  to  or  filing  with  any  governmental  or
regulatory  authority,  or any other third party is required  (i) to  consummate
this Agreement and the transaction contemplated hereby, (ii) to permit Seller to
assign or transfer the Assets to Buyer,  or (iii) to enable Buyer to conduct the
business or  operations of the Stations in  essentially  the same manner as such
business or operations are presently conducted.

         3.9 Trademarks, Trade Names and Copyrights.  Schedule 3.9 is a true and
complete list of all  Intangibles  (exclusive of those  required to be listed in
Schedule  3.4) all of which  are  valid and in good  standing  and  uncontested.
Seller  has  delivered  to  Buyer  copies  of  all  documents  establishing  the
Intangibles.  Seller is not aware that it is infringing upon or otherwise acting
adversely  to  any  trademarks,   trade  names,   copyrights,   patents,  patent
applications,  know-how,  methods,  or  processes  owned by any other  person or
persons,  and there is no claim or action pending, or to the knowledge of Seller
threatened,  with  respect  thereto.  The  Intangibles  listed on  Schedule  3.9
comprise all intangible property interests necessary to conduct the business and
operations of the Stations as now conducted.

         3.10 Insurance.  The business of the Stations and the Personal Property
included in the Assets are insured  against loss or damage in amounts  generally
customary in the broadcast industry. Schedule 3.10 comprises a true and complete
list of all  insurance  policies of Seller  which insure any part of the Assets.
All policies of insurance listed in Schedule 3.10 are in full force and effect.

         3.11  Reports.  Except where failure to do so would not have a material
adverse  effect on the  ownership  or operation  of the  Stations,  all returns,
reports and statements which the Stations is currently required to file with the
FCC or with any other  governmental  agency have been filed,  and all  reporting
requirements of the FCC and other governmental  authorities having  jurisdiction
thereof have been complied with; all of such reports, returns and statements are
substantially complete and correct as filed; and the Stations' public inspection
file is located at the main studio and is in compliance with the FCC's rules and
regulations.

         3.12 Employee  Benefit Plans and  Employees.  Schedule 3.12 includes an
accurate  description of all employee benefit plans and arrangements  applicable
to the employees of Seller

                                       13



<PAGE>



employed at the  Stations,  including  pension or thrift  plans,  individual  or
supplemental  pension or accrued  compensation  arrangements,  contributions  to
hospitalization  or other health or life insurance  programs,  incentive  plans,
bonus  arrangements,  and  vacation,  sick  leave,  disability  and  termination
arrangements  or  policies,  including  workers'  compensation  policies,  and a
description  of all fixed or contingent  liabilities or obligations of Seller or
Chancellor  with  respect to any person  employed at any of the  Stations or any
person retained as an independent contractor at any of the Stations.  Seller has
furnished or made  available  to Buyer true and  complete  copies of all written
documents or information  with respect to employee  matters and  arrangements at
the Stations,  including without limitation,  all employee handbooks,  rules and
policies, plan documents, trust agreements,  employment agreements, summary plan
descriptions,  and  descriptions of any unwritten plans listed in Schedule 3.12.
There exists no action,  suit or claim (other than routine  claims for benefits)
with respect to any of such plans or  arrangements  pending or, to the knowledge
of Seller,  threatened  against  any of such plans or  arrangements,  and Seller
possesses  no  knowledge  of any facts which could give rise to any such action,
suit or claim.  Schedule 3.12 contains a true and complete list of all employees
of any of the Stations and all persons  retained as  independent  contractors at
any of the Stations and a description of all compensation arrangements affecting
them (including salary, bonus and other benefit  arrangements) and a description
of their duties as of the date of this Agreement.

         3.13 Labor Relations.  Seller has provided Buyer with true and complete
copies  of  all  written  contracts  of  employment.  Seller,  and  to  Seller's
knowledge,  after due investigation  Seller's predecessors in interest, in their
operation  of the  Stations,  have  complied in all material  respects  with all
applicable  laws,  rules and  regulations  relating to the  employment of labor,
including those related to wages,  hours,  collective  bargaining,  occupational
safety,  discrimination,  and the payment of social  security and other  payroll
related taxes, and neither Seller, not to its knowledge, after due investigation
its  predecessors  in interest,  have  received any notice  alleging that it has
failed  to  comply  in any  material  respect  with  any  such  laws,  rules  or
regulations.  No controversies,  disputes, or proceedings are pending or, to the
best of its  knowledge,  threatened,  between  Seller and any  employees  of the
Stations.  Seller  is not a party to or  subject  to any  collective  bargaining
agreements  with  respect to the  Stations  except as  described in Schedule 3.7
hereto. No labor union or other collective bargaining unit represents

                                       14



<PAGE>



any of the employees of the Stations.  To the best knowledge of Seller, there is
no union campaign being conducted to solicit cards from employees to authorize a
union to request a National Labor  Relations Board  certification  election with
respect to any of Seller's employees at the Stations.

         3.14 Claims,  Legal Actions.  Except as set forth in Schedule 3.14, and
except for any investigations and rule-making  proceedings  generally  affecting
the broadcasting industry, there is no claim, legal action, counterclaim,  suit,
arbitration,  governmental  investigation or other legal,  administrative or tax
proceeding, nor any order, decree or judgment, in progress or pending, or to the
knowledge of Seller threatened, against or relating to Seller, License Corp. the
Assets,  or the business or operations of the Stations,  nor does Seller know of
any basis for the same. In particular, except as set forth in Schedule 3.14, but
without  limiting the  generality of the foregoing,  there are no  applications,
complaints or proceedings  pending or, to the best of its knowledge,  threatened
(i) before the FCC relating to the business or operations of any of the Stations
other  than  applications,  complaints  or  proceedings  which  affect the radio
industry generally, (ii) before any federal or state agency involving charges of
illegal  discrimination  by any of the  Stations  under  any  federal  or  state
employment laws or  regulations,  or (iii) against Seller or the Stations before
any federal,  state or local agency  involving  environmental  or zoning laws or
regulations.

         3.15 Compliance  with Laws. To the best knowledge of Seller,  after due
investigation  Seller and License Corp.  have complied in all material  respects
with (i) the Licenses,  and (ii) all applicable  federal,  state and local laws,
rules,  regulations and ordinances.  To the best knowledge of Seller,  after due
investigation  neither the  ownership or use, nor the conduct of the business or
operations,  of the Stations conflicts with rights of any other person,  firm or
corporation.

         3.16 Environmental Matters. During Seller's period of ownership and, to
the best knowledge of Seller,  during those of its predecessors,  there has been
no  production,   storage,  treatment,  recycling,  disposal,  use,  generation,
discharge, release or other handling or disposition of any kind by Seller or any
such  predecessor  of any  toxic  or  hazardous  wastes,  substances,  products,
pollutants or materials of any kind,  including,  without limitation,  petroleum
and petroleum products and asbestos, or any other wastes, substances,  products,
pollutants or

                                       15



<PAGE>



material  regulated under any  environmental  laws at, in, on, from or under the
Real Property.  The operations of Seller and, to Seller's best knowledge,  those
of its  predecessors,  are and have  been  conducted,  as the  case  may be,  in
material compliance with the Comprehensive Environmental Response,  Compensation
and Liability Act, the Resource Conservation and Recovery Act, the Federal Water
Pollution Control Act, the Clean Air Act, the Safe Drinking Water Act, the Toxic
Substances  Control Act, the Refuse Act, or the Emergency Planning and Community
Right-to-Know  Act (each as amended) and all other laws,  rules, and regulations
of federal,  state,  and local  governments  (and agencies  thereof)  concerning
release or threatened release of hazardous substances, public health and safety,
or pollution or  protection  of the  environment  (collectively,  "Environmental
Laws"). To the best knowledge of Seller, after due investigation,  Seller has no
liability  relating to its ownership and operation of any of the Stations  under
any Environmental Law. No charge, complaint, action, suit, proceeding,  hearing,
investigation,  claim,  demand,  or notice has been filed or  commenced  against
Seller in  connection  with its  ownership  or  operation of any of the Stations
alleging any failure to comply with any Environmental Law.

         3.17  Financial  Statements.  Seller has furnished  Buyer with true and
complete copies of operating  statements regarding the Stations for the calendar
year ended December 31, 1996  (collectively,  the "Financial  Statements").  The
Financial  Statements  have been  prepared  from the books and records of Seller
and, as required, its predecessors-in-interest, have been prepared in accordance
with  generally  accepted  accounting   principles   consistently   applied  and
maintained  throughout  the  periods  indicated,  accurately  reflect the books,
records,  and accounts of the Stations (which books,  records,  and accounts are
complete and correct),  are complete and correct in all material  respects,  and
present  fairly the financial  condition of the Stations as at their  respective
dates and the  results of  operations  for the periods  then ended.  None of the
Financial  Statements  understates the true costs and expenses of conducting the
business  or  operations   of  the  Stations   (except  that  trade  and  barter
transactions are not reflected in the Financial  Statements),  fails to disclose
any material contingent  liabilities,  or inflates the revenues of the Stations.
In addition,  Seller has made available to Buyer operating  statements regarding
the  Stations  prepared  by their  prior  owners to the  extent  Seller has such
statements in its possession, but as to which Seller makes no representations or
warranties.


                                       16



<PAGE>




         3.18 Taxes.  There are no governmental  investigations  or other legal,
administrative,  or tax proceedings pursuant to which Seller is or could be made
liable for any taxes,  penalties,  interest, or other charges, the liability for
which could extend to Buyer as transferee  of the business of the Stations,  and
no event has occurred  that could impose on Buyer any  transferee  liability for
any taxes, penalties, or interest due or to become due from Seller .

         3.19  Conduct of  Business in Ordinary  Course.  Since  August 1, 1996,
Seller has  conducted  the business and  operations  of the Stations only in the
ordinary course and have not:

                  (a)  Suffered  any material  adverse  change in the  business,
assets, or properties of any of the Stations, including any damage, destruction,
or loss  affecting  any assets used or useful in the conduct of the  business of
any of the Stations;

                  (b) Made any material  increase in compensation  payable or to
become  payable to any of the  employees of the  Stations,  or any bonus payment
made or promised to any  employee of the  Stations,  or any  material  change in
personnel  policies,  employee  benefits,  or  other  compensation  arrangements
affecting the employees of the Stations;

                  (c)  Made  or  permitted  License  Corp.  to  make  any  sale,
assignment,  lease, or other transfer of any of the Stations'  properties  other
than in the normal and usual course of business with suitable replacements being
obtained therefor;

                  (d)  Canceled any debts owed to or claims held by the owner of
any Station with respect to such Station,  except in the normal and usual course
of business;

                  (e)  Suffered  any  material  write-down  of the  value of any
Assets; or

                  (f)  Transferred  or granted any right under,  or entered into
any settlement  regarding the breach or  infringement  of, any license,  patent,
copyright,  trademark,  trade name, franchise, or similar right, or modified any
existing right relating to any of the Stations.


                                       17



<PAGE>



         3.20  Transactions  with  Affiliates.  Except as  disclosed on Schedule
3.20,  Seller has not been involved in any business  arrangement or relationship
relating to any of the Stations with any  affiliate of Seller,  and no affiliate
of Seller owns any property or right,  tangible or intangible,  which is used in
the business of any of the Stations.

         3.21 Full Disclosure.  No  representation or warranty made by Seller in
this Agreement or in any certificate, document, or other instrument furnished or
to be furnished by Seller  pursuant  hereto  contains or will contain any untrue
statement of a material  fact,  or omits or will omit to state any material fact
and required to make any statement made herein or therein not misleading.




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                                       18



<PAGE>




                                    SECTION 4
                     REPRESENTATIONS AND WARRANTIES OF BUYER

Buyer represents and warrants to Seller as follows:

         4.1 Organization,  Standing and Authority.  Buyer is a corporation duly
organized, validly existing, and in good standing under the laws of the State of
Delaware,  and is qualified to conduct  business in the State of Florida.  Buyer
has all  requisite  corporate  power and  authority  to execute and deliver this
Agreement and the documents  contemplated hereby, and to perform and comply with
all of the terms, covenants, and conditions to be performed and complied with by
Buyer hereunder and thereunder.

         4.2 Authorization and Binding Obligation.  The execution,  delivery and
performance  of this  Agreement  by  Buyer  have  been  duly  authorized  by all
necessary  corporate  action on the part of Buyer.  This Agreement has been duly
executed and delivered by Buyer and  constitutes the legal,  valid,  and binding
obligation of Buyer,  enforceable  against  Buyer in  accordance  with its terms
except as the enforceability  hereof may be affected by bankruptcy,  insolvency,
or similar laws affecting creditors' rights generally, or by judicial discretion
in the enforcement of equitable remedies.

         4.3  Absence  of  Conflicting  Agreements.  Subject  to  obtaining  the
Consents,  the execution,  delivery,  and performance by Buyer of this Agreement
and the documents contemplated hereby (with or without the giving of notice, the
lapse of time, or both): (i) do not require the consent of any third party; (ii)
will not conflict  with the  Certificate  of  Incorporation  or Bylaws of Buyer;
(iii) will not  conflict  with,  result in a breach of, or  constitute a default
under, or accelerate or permit the  acceleration of any performance  required by
the terms of, any material agreement,  instrument,  licenses, or permit to which
Buyer is a party or by which Buyer may be bound.

         4.4 FCC  Qualification.  Except as disclosed on Schedule 4.4, Buyer has
no  knowledge  of any facts  which  would,  under  present  law  (including  the
Communications  Act of 1934,  as amended)  and present  rules,  regulations  and
practices of the FCC,  disqualify Buyer as an assignee of the licenses,  permits
and authorizations listed on Schedule 3.4 hereto, or as an owner

                                       19



<PAGE>


and/or  operator  of  the  Stations'  Assets,   and  Buyer  will  not  take,  or
unreasonably  fail to take,  any  action  which  Buyer  knows  would  cause such
disqualification.

         4.5 Paxson Tower Assets Representations and Warranties.

                  A.  Real  Property.  Buyer  has  delivered  to eller  true and
complete  copies of all leases or other material  instruments  pertaining to the
Paxson Tower Assets (including any and all amendments and other modifications of
such instruments),  all of which instruments are valid,  binding and enforceable
in accordance with their terms. To Buyer's  knowledge,  Buyer is not in material
breach,  nor is any other  party in  material  breach,  of the terms of any such
leases  or other  instruments.  All such  real  property  to  Buyer's  knowledge
materially  complies  as  described  in  Schedule  2.3(b)  with  all  applicable
building,  electrical and zoning codes and all  regulations of any  governmental
authority having jurisdiction.

                  B. Personal Property.  Except as described on Schedule 2.3(b),
Buyer  owns and has good  title to all  property  listed  thereon.  None of such
personal property owned by Buyer is subject to any security interest,  mortgage,
pledge,  conditional sales agreement,  or other lien or encumbrance,  except for
(i) liens for current  taxes not yet due and payable,  and (ii) any other claims
or encumbrances which are described in Schedule 2.3(b).

                  C.  Consents.  To Seller's  knowledge,  no consent,  approval,
permit or  authorization  of, or declaration to or filing with any government or
regulatory  authority,  or any other third party is requ red to permit  Buyer to
assign or transfer the Paxson Tower Assets to Seller.

                  D. Compliance with Laws. To the best knowledge of Buyer, B yer
has compiled in all material  respects with all  applicable  federal,  state and
local laws,  rules,  regulations and ordinances with respect to the Paxson Tower
Assets.  To the best knowledge of Seller,  neither the ownership or use, nor the
conduct of the business or operations of the Paxson Tower Assets  conflicts with
the rights of any other person, firm or corporation.



                                       20



<PAGE>




                                    SECTION 5
                               COVENANTS OF SELLER

         5.1  Pre-Closing  Covenants.  Except with the prior written  consent of
Buyer between the date hereof and the Closing Date, Seller covenants that it and
License Corp.  shall operate the Stations in the ordinary  course of business in
accordance  with  their  respective  past  practices  (except  where  such would
conflict  with  the  following  covenants  or with  Seller's  other  obligations
hereunder), and abide by the following negative and affirmative covenants:

                  A.  Negative  Covenants.  Seller  shall  not  do  any  of  the
following:

                  (1) Compensation.  Increase the compensation, bonuses or other
         benefits  payable or to be payable to any person employed in connection
         with the conduct of the business or operations of the Stations,  except
         in accordance with current year budget as disclosed in Schedule 3.12;

                  (2) Contracts.  Modify or amend any of the Assumed  Contracts;
         enter into any new Contracts except in the ordinary course of business,
         provided that all new Contracts  (other than  Contracts for the sale of
         broadcast time) shall not involve aggregate  liabilities exceeding Five
         Thousand Dollars ($5,000) or any material nonmonetary obligation; enter
         into any trade or barter  agreements  which  create  obligations  to be
         performed subsequent to the Closing;

                  (3) Disposition of Assets.  Sell, assign,  lease, or otherwise
         transfer or dispose of any of the  material  Assets,  except for assets
         consumed  in the  ordinary  course of  business  or assets  disposed of
         following the  acquisition of replacement  property of equivalent  kind
         and value;

                                       21



<PAGE>





                  (4) Encumbrances. Create, assume or permit to exist any claim,
         liability, mortgage, lien, pledge, condition, charge, or encumbrance of
         any  nature  whatsoever  upon  the  Assets,  except  for (i)  those  in
         existence on the date of this  Agreement and disclosed in Schedules 3.5
         and 3.6,  (ii)  mechanics'  liens and other similar liens which will be
         removed  prior to the Closing  Date,  and (iii) liens for current taxes
         not yet due and payable;

                  (5) Programming.  Reduce the Stations' programming hours below
         the minimum  required by the FCC, or make any other material changes in
         the Stations' programming policies,  except such changes as in the good
         faith judgment of the Seller are required by the public interest;

                  (6)  Licenses.  Do any act or fail to do any act  which  might
         result in the expiration, revocation, suspension or modification of any
         of  the  Licenses,   or  fail  to  prosecute  with  due  diligence  any
         applications  to any  governmental  authority  in  connection  with the
         operation of the Stations;

                  (7) Rights.  Waive any material right relating to the Stations
         or the Assets; or

                  (8)  No  Inconsistent   Action.   Take  any  action  which  is
         inconsistent with Seller's obligations  hereunder or which could hinder
         or delay  the  consummation  of the  transaction  contemplated  by this
         Agreement.

         B.       Affirmative Covenants.  Seller shall do the following:

                  (1) Access to Information.  Upon prior notice, allow Buyer and
         its authorized  representatives reasonable access at mutually agreeable
         times to the  Assets  and to all other  properties,  equipment,  books,
         records,  Contracts  and  documents  relating to the Stations  (but not
         relating  solely to Seller's  other  operations  or  business)  for the
         purpose of audit and inspection  including  inspections incident to the
         environmental study described in Section 6.11 and the engineering study
         described  in Section  6.12,  and


                                       22



<PAGE>


         furnish  or  cause  to  be  furnished   to  Buyer  or  its   authorized
         representatives  all  information  with  respect  to  the  affairs  and
         business of the  Stations  (but not relating  solely to Seller's  other
         operations  or  business)  as Buyer may  reasonably  request,  it being
         understood that the rights of Buyer hereunder shall not be exercised in
         such a manner as to interfere  with the  operations  of the business of
         Seller;  provided that neither the  furnishing of such  information  to
         Buyer or its  representatives  nor any investigation made heretofore or
         hereafter  by  Buyer  shall  affect  Buyer's  rights  to  rely  on  any
         representation  or warranty made by Seller in this  Agreement,  each of
         which shall survive any furnishing of information or any investigation;

                  (2)  Maintenance  of  Assets.  Maintain  all of the  Assets or
         replacements   thereof  and  improvements  thereon  in  good  condition
         (ordinary wear and tear excepted), and use, operate and maintain all of
         the above  assets in a reasonable  manner,  with  inventories  or spare
         parts and  expendable  supplies being  maintained at levels  consistent
         with past practices;

                  (3) Insurance. Maintain the existing insurance policies on the
         Stations and the Assets;

                  (4)  Consents.  Use  its  reasonable  efforts  to  obtain  the
         Consents and the estoppel certificates described in Section 8.2(f), and
         promptly advise Buyer of any difficulties  experienced in obtaining any
         of  the  Consents  and  of  any  conditions  proposed,  considered,  or
         requested for any of the Consents;

                  (5)  Preservation of Business.  Use its reasonable  efforts to
         preserve the business  and  audience of the  Stations,  and its present
         relationships  with their  employees,  suppliers,  customers and others
         having business  relations with it and maintain levels of marketing and
         promotions  efforts  and  expenditures  during the period  prior to the
         Closing Date equal to or greater to such levels in the year immediately
         prior to the Closing Date;

                                       23



<PAGE>



  
                  (6) Books and  Records.  Maintain  its  books and  records  in
         accordance with past practices;

                  (7)  Notification.  Promptly  notify  Buyer in  writing of any
         unusual  or  material  developments  with  respect to the assets of the
         Stations,  and  of any  material  change  in  any  of  the  information
         contained  in Seller's  representations  and  warranties  contained  in
         Section  3  hereof  or in the  schedules  hereto,  provided  that  such
         notification shall not relieve Seller of any obligations hereunder;

                  (8) Personnel.  Promptly  notify Buyer as personnel  vacancies
         occur  at the  Stations  and  consider  for  employment  all  personnel
         recommended by Buyer for such vacant positions;

                  (9) Trade and Barter Agreements.  Provide prior to the Closing
         Date the  advertising  time due under any trade and  barter  agreements
         listed in Schedule 3.7 in the normal course of business;

                  (10)  Financial  Information.  Furnish to Buyer within fifteen
         (15) days after the end of each month  ending  between  the date hereof
         and the Closing Date a statement of income and expense  relating to the
         Stations'  operations for the month just ended and such other financial
         information  (including  information  on payables and  receivables)  as
         Buyer may  reasonably  request and which is  prepared  in the  ordinary
         course  of  business.  All  financial  information  delivered  to Buyer
         pursuant to this Section  shall be prepared  from the books and records
         of the  Stations  in  accordance  with  generally  accepted  accounting
         principles  consistently  applied,  shall accurately reflect the books,
         records, and accounts of the Stations, shall be complete and correct in
         all material respects, and shall present fairly the financial condition
         of the  Stations  as at  their  respective  dates  and the  results  of
         operations for the periods then ended.


                                       24



<PAGE>



                  (11) Contracts.  Prior to the Closing Date, deliver to Buyer a
         list of all  Contracts  entered  into  between  the date hereof and the
         Closing  Date of the  type  required  to be  listed  in  Schedule  3.7,
         together with copies of such Contracts; and

                  (12)  Compliance  with Laws.  Comply in all material  respects
         with all rules and  regulations  of the FCC, and all other laws,  rules
         and  regulations  to which  Seller,  the  Stations  or the  Assets  are
         subject.

         5.2 Post-Closing  Covenants.  After the Closing,  Seller will take such
actions,  and execute and deliver to Buyer such further deeds, bills of sale, or
other transfer documents as, in the reasonable opinion of counsel for Buyer, may
be necessary to ensure, complete and evidence the full and effective transfer of
the Assets to Buyer pursuant to this Agreement.


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                                       25



<PAGE>




                                    SECTION 6

                        SPECIAL COVENANTS AND AGREEMENTS

         6.1 FCC Consent.  The assignment of the FCC Licenses as contemplated by
this  Agreement is subject to the prior consent and approval of the FCC.  Within
ten (10) days after the execution of this Agreement, Buyer and Seller shall file
with the FCC an  appropriate  application  for FCC  Consent.  The parties  shall
prosecute said application with all reasonable diligence and otherwise use their
best  efforts  to  obtain  the grant of such  application  as  expeditiously  as
practicable.  If the FCC Consent imposes any condition on any party hereto, such
party  shall use its best  efforts to comply  with such  condition  except  that
neither  party shall be required to comply with a condition if (1) the condition
was imposed on it as the result of a  circumstance  the  existence of which does
not constitute a breach by the party of any of its representations,  warranties,
or covenants under this  Agreement,  and (2) compliance with the condition would
have a material adverse effect upon it.. If  reconsideration  or judicial review
is sought with  respect to the FCC  Consent,  Buyer and Seller shall oppose such
efforts to obtain  reconsideration  or judicial review (but nothing herein shall
be construed to limit either party's right to terminate this Agreement  pursuant
to Section 9 of this Agreement).

         6.2  Control of the  Stations.  Prior to the  Closing  Buyer shall not,
directly  or  indirectly,  control,  supervise,  direct,  or attempt to control,
supervise or direct, the operations of the Stations; such operations,  including
complete  control and supervision of all of the Stations'  programs,  employees,
and policies, shall be the sole responsibility of Seller until the completion of
the Closing hereunder.

         6.3 Taxes,  Fees and  Expenses.  Seller and Buyer shall each pay 50% of
all sales and similar taxes and fees, if any, arising out of the transfer of the
Assets pursuant to this  Agreement,  provided,  however,  that Seller's share of
sales tax on tangible  personal  property shall not exceed Four Thousand Dollars
($4,000).  All filing  fees  required  by the FCC and the FTC  (associated  with
filings  required  under the HSR Act) shall be paid equally by Seller and Buyer.
Except as  otherwise  provided in this  Agreement,  each party shall pay its own
expenses incurred in

                                       26



<PAGE>




connection with the authorization,  preparation,  execution,  and performance of
this Agreement, including all fees and expenses of counsel, accountants, agents,
and other representatives.

         6.4 Brokers. Buyer and Seller each represents and warrants that neither
it nor any person or entity  acting on its behalf has incurred any liability for
any finders' or brokers' fees or commissions in connection  with the transaction
contemplated by this Agreement,  except for Blackburn and Company,  Inc.,  whose
fee shall be solely the responsibility of Seller.

         6.5  Confidentiality.  Except as necessary for the  consummation of the
transaction  contemplated  hereby,  each party hereto will keep confidential any
information  which is  obtained  from the  other  party in  connection  with the
transaction contemplated hereby and which is not readily available to members of
the general public, and will not use such information for any purpose other than
in  furtherance  of the  transactions  contemplated  hereby.  In the event  this
Agreement is terminated and the purchase and sale contemplated hereby abandoned,
each party will return to the other party all  documents,  work papers and other
written  material  obtained  by it from the other party in  connection  with the
transaction contemplated hereby.

         6.6 Cooperation. Buyer and Seller shall cooperate fully with each other
and their  respective  counsel and  accountants  in connection  with any actions
required  to be  taken  as part  of  their  respective  obligations  under  this
Agreement,  and Buyer and Seller shall  execute  such other  documents as may be
necessary  and  desirable  to  the   implementation  and  consummation  of  this
Agreement,  and otherwise use their best efforts to consummate  the  transaction
contemplated hereby and to fulfill their obligations hereunder.  Notwithstanding
the foregoing,  Buyer shall have no obligation (i) to expend funds to obtain the
Consents,  or (ii) to agree to any  adverse  change in any  License  or  Assumed
Contract to obtain a Consent required with respect thereto.

         6.7      Risk of Loss.

                  A. The risk of loss,  damage or  impairment,  confiscation  or
condemnation  of any of the Assets from any cause  whatsoever  shall be borne by
Seller at all times prior to the completion of the Closing. If any loss, damage,
impairment,  confiscation,  or  condemnation  of or to any of the Assets occurs,
Seller shall repair,  replace, or restore the Assets to their prior condition as
represented in this Agreement as soon  thereafter as possible,  and Seller shall
use the  proceeds  of any claim  under any  insurance  policy  solely to repair,
replace,  or restore  any of the Assets  that are lost,  damaged,  impaired,  or
destroyed.

                                       27



<PAGE>



                  B. If any loss, damage or destruction of the Assets occurs and
Seller cannot restore or replace the Assets before the date  otherwise  provided
in this Agreement for the Closing, then, at Buyer's option, the Closing shall be
postponed,  for a period of up to one hundred  twenty (120) days,  to permit the
repair or  replacement of the damage or loss.  Alternatively,  Buyer may, at its
option,  proceed  to close this  Agreement  and  complete  the  restoration  and
replacement of such damaged Assets after the Closing Date, in which event Seller
shall deliver to Buyer all insurance  proceeds  received in connection with such
damage or destruction of the Assets to the extent not already expended by Seller
arising in connection with such restoration and replacement.

                  C.  Notwithstanding any of the foregoing,  Buyer may terminate
this Agreement  forthwith  without any further  obligation  hereunder by written
notice to Seller if any event occurs which prevents  signal  transmission by the
Stations  in a manner  generally  equivalent  to its  current  operations  for a
consecutive  period of five (5) or a  cumulative  period of  fourteen  (14) days
after the date hereof.

         6.8 Employee Matters. Seller shall promptly notify Buyer of any changes
that  occur  prior to  Closing  with  respect  to the  information  set forth on
Schedule 3.13.

         6.9 Accounts Receivable.  At the Closing,  Seller shall designate Buyer
as its agent to collect the Accounts  Receivable.  Seller shall deliver to Buyer
on or as soon as  practicable  after the Closing  date a complete  and  detailed
statement showing the name, amount and age of each Account  Receivable.  Subject
to and limited by the following,  collections of the Accounts Receivable will be
for the  account of Seller.  Buyer  shall  endeavor  in the  ordinary  course of
business  to collect  the  Accounts  Receivable  for a period  beginning  on the
Closing  Date and  ending  on the  last day of the  third  full  calendar  month
beginning after the Closing Date (the "Collection Period"). Any payment received
by Buyer during the Collection Period from any customer with an account which is
an  Account  Receivable  shall  first be  applied in  reduction  of the  Account
Receivable,  unless the  customer  has  disputed  such  application  and directs
otherwise.  On or before the 15th day after the last day of each calendar  month
during the  Collection  Period,  Buyer shall furnish Seller with a list of , and
pay over to Seller,  the  amounts  collected  during  such  calendar  month with
respect to the  Accounts  Receivable.  Buyer shall  provide  Seller with a final
accounting  on or before  the  fifteenth  (15th)  day  following  the end of the
Collection Period.

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<PAGE>



As Seller's agent, Buyer shall not be obligated to use any extraordinary efforts
or expend any sums to collect any of the Accounts  Receivable or to refer any of
such  Accounts  Receivable  to a  collection  agency  or  to  any  attorney  for
collection, and Buyer shall not make any such referral or compromise, nor settle
or adjust the amount of any such Account Receivable, except with the approval of
Seller.  Buyer shall incur no liability to Seller for any  uncollected  account.
During the  Collection  Period,  without  specific  agreement  with Buyer to the
contrary,  neither Seller nor its agents shall make any direct  solicitation  of
the Account Receivable for collection purposes.

         6.10 Tower Lease  Arrangements.  Seller agrees that Seller, or Seller's
subsidiary,  American Tower Systems, Inc., a Delaware Corporation  ("ATS")hereby
agree to will enter  into on or before  the  Closing  Date the  following  lease
agreements,  in  substantially  the form or substantially in accordance with the
terms, set forth in the respective Exhibit to this Agreement:

                  Exhibit 6.10(a) WOLL Main Antenna Sublease Lease Terms
                  Exhibit 6.10(b) WKGR Main Antenna Sublease Lease Terms
                  Exhibit 6.10(c) WHBI-TV Main Antenna Lease
                  Exhibit 6.10(d) WBZT Land Lease Agreement
                  Exhibit 6.10(e) Option Agreement (Tiger Mountain, Seattle, WA)
                  Exhibit 6.10(f)   WOLL Rental Sharing Agreement Terms
                  Exhibit 6.10(g) WBZT  Interim Lease Agreement

In addition,  Seller  hereby agrees to  construct,  at Seller's sole expense,  a
tower site for  WBZT(AM)  in  accordance  with the  specifications  set forth in
Exhibit  6.10(hg)  and the  construction  of said tower site shall be  completed
prior to the Closing, if possible,  but in any event as soon as practicable.  If
the new transmitter site for radio station WBZT(AM) is not fully  operational on
the Closing  Date,  Buyer shall  withhold from the amount  otherwise  payable to
Seller at the Closing pursuant to Section 2.3(a) the sum of Six Hundred Thousand
Dollars (the "Holdback  Amount").  Buyer shall pay the Holdback Amount of Seller
within  five  business  days after the new  transmitter  site for radio  station
WBZT(AM) is fully operational.  Between the Closing Date and the date of payment
to Seller,  Buyer shall not be required  to hold or invest the  Holdback  Amount
separately from any other funds of Buyer.

         6.11  Environmental  Audit.  Buyer  may,  at  its  option,   retain  an
environmental  consultant  to  be  selected  by  Buyer  to  perform  a  Phase  I
environmental  survey of the  properties of any or all

                                       29



<PAGE>



of the Stations.  If the survey discloses any material  environmental  hazard or
material  possibility of future liability for environmental  damages or clean-up
costs, Buyer shall so notify Seller as soon as practicable.

         6.12 Engineering Study. Buyer may, at its option, retain an engineering
firm to conduct a proof of  performance  study of any or all of the Stations and
to prepare a report on any or all of the  Stations'  compliance  with  customary
engineering  practices and all  applicable  FCC rules,  regulations,  prescribed
practices,  and  technical  standards.  If the  survey  discloses  any  material
deficiencies in the operations or equipment of any of the Stations,  Buyer shall
so notify Seller as soon as practicable.

         6.13 Bulk Sales Law. If applicable,  the Bulk Sales law of the State of
Florida shall be complied with by Seller. Any loss,  liability,  obligation,  or
cost suffered by Seller or Buyer as the result of the failure of Seller or Buyer
to comply with the  provisions of any bulk sales law  applicable to the transfer
of the Assets as contemplated by this Agreement shall be borne by Seller.

         6.14 Access to Books and Records. Seller shall provide Buyer access and
the right to copy for a period of three  years from the  Closing  Date any books
and records  relating to the Assets but not included in the Assets.  Buyer shall
provide Seller access and the right to copy for a period of three years from the
Closing  Date any books and records  relating to the Assets that are included in
the Assets.

         6.15  HSR Act  Filing.  Seller  and  Buyer  have  filed  with  the U.S.
Department of Justice and the Federal Trade Commission appropriate filings under
the Hart-Scott-Rodino  Antitrust  Improvements Act of 1976, as amended (the "HSR
Act").  The waiting  period under the HSR Act has expired  without action by the
Department of Justice or the Federal Trade Commission to prevent the Closing.

         6.16  Adjustments to Personal  Property.  Buyer and Seller  acknowledge
that the items of Personal  Property  listed on Schedule 3.6 represent  Seller's
good faith  determination of material equipment and property associated with the
Stations,  notwithstanding that certain items of the Personal Property have been
in shared use with other radio stations owned by Seller. Accordingly,  Buyer and
Seller hereby agree to negotiate in good  following  the date of this  Agreement
and prior to Closing in order to address any instances  claimed Buyer where such

                                       30



<PAGE>




division of personal  property  results in less than a  reasonably  satisfactory
allocation of equipment and facilities for Buyer to operate the Stations.



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                                       31



<PAGE>


                                    SECTION 7
                  CONDITIONS TO OBLIGATIONS OF BUYER AND SELLER

         7.1 Conditions to Obligations of Buyer. All obligations of Buyer at the
Closing  hereunder  are subject to the  fulfillment  prior to and at the Closing
Date of each of the following  conditions any of which may be waived by Buyer in
whole or in part in its sole discretion in writing:

                  A.  Representations  and Warranties.  The  representations and
warranties  of  Seller  in this  Agreement  shall  be true and  complete  in all
material  respects at and as of the Closing Date as though such  representations
and warranties were made at and as of such time.

                  B. Covenants and Conditions. Seller shall have in all material
respects performed and complied with the covenants,  agreements,  and conditions
required by this Agreement to be performed or complied with by it prior to or on
the Closing Date.

                  C.  Consents.  Each of the Consents  marked as  "material"  on
Schedule  3.7 shall  have been duly  obtained  and  delivered  to Buyer  with no
material  adverse  change to the terms of the License or Assumed  Contract  with
respect to which such Consent is obtained.

                  D. Licenses.  Seller shall be the holder of the Licenses,  and
there shall not have been any  modification of any of such Licenses which has an
adverse  effect on the Stations or the conduct of their  business or operations.
No proceeding  shall be pending the effect of which would be to revoke,  cancel,
fail to renew, suspend or modify adversely any of the Licenses.

                  E.  Deliveries.  Seller  shall have made or stand  willing and
able to make all the deliveries to Buyer set forth in Section 8.2

                  F. Adverse Change.  Between the date of this Ag eement and the
Closing Date,  there shall have been no material adverse change in the business,
assets, liabilities,  results of operations, condition (financial or otherwise),
or prospects of any of the Stations,  including any damage, destruction, or loss
affecting any assets used or useful in the conduct of the business of any of the
Stations.

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<PAGE>




                  G. Financial Covenant. Broadcast Cash Flow of the Stations for
the latest period of twelve consecutive  calendar months ending at least fifteen
days prior to the  Closing  Date shall be at least  $1,900,000.  As used in this
Agreement,  "Broadcast  Cash Flow" means (i) with respect to each  Station,  net
income from advertising sales on such Station excluding non-cash items and after
restoring thereto amounts previously deducted for depreciation,  amortization of
intangibles (other than of programming rights),  interest,  corporate/management
fees, income taxes,  retirement  benefits (excluding  executive/talent  deferred
income), and any other home office allocations,  but in no event less than zero,
and (ii) with respect to the Stations as a whole,  the sum of the Broadcast Cash
Flow of each of the  Stations.  All home office  allocations  to the  individual
Stations shall be made in good faith.

                  H. FCC  Consent.  The FCC  Consent  shall  have  been  granted
without the imposition on Buyer of any conditions that need not be complied w th
by  Buyer  under  Section  6.1  hereof,  Seller  shall  have  complied  with any
conditions  imposed  on it by the FCC  Consent  and the FCC  Consent  shall have
become a Final Order.

                  I. New  Transmitter  Sites for WOLL and WKGR.  Radio  stations
WOLL and WKGR  shall  each be fully  operational  from Hobe  Sound  Tower in the
manner  contemplated by the leases to be entered into in accordance with Exhibit
6.10(a) and Exhibit 6.10(b).

         7.2 Conditions to Obligations of Seller.  The  obligations of Seller at
the Closing hereunder are subject to the fulfillment prior to and at the Closing
Date of each of the following conditions any of which may be waived by Seller in
whole or in part in its sole discretion in writing:

                  A.  Representations  and Warranties.  The  representations and
warranties of Buyer  contained in this  Agreement  shall be true and complete in
all   material   respects  at  and  as  of  the  Closing  Date  as  though  such
representations and warranties were made at and as of such time.

                  B. Covenants and Conditions.  Buyer shall have in all material
respects performed and complied with the covenants,  agreements,  and conditions
required by this Agreement to be performed or complied with by it prior to or on
the Closing Date.

                  C. Deliveries. Buyer shall have made or stand willing and able
to make all the deliveries set forth in Section 8.3.

                                       33



<PAGE>




                  D. FCC  Consent.  The FCC  Consent  shall  have  been  granted
without the  imposition  on Seller of any  conditions  that need not be complied
with by Seller  under  Section 6.1 hereof,  Buyer shall have  complied  with any
conditions  imposed  on it by the FCC  Consent  and the FCC  Consent  shall have
become a Final Order.




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                                       34



<PAGE>




                                    SECTION 8
                         CLOSING AND CLOSING DELIVERIES

         8.1 Closing. Except as provided in the following sentence or in Section
6.7(B) or as  otherwise  agreed to by Buyer and Seller,  the Closing  shall take
place at 10:00 a.m. on a date, to be set by Buyer on at least five days' written
notice to Buyer,  which shall be not earlier  than the first  business day after
and not later than the tenth business day after the day on which the FCC Consent
shall have become a Final Order,  provided,  though,  that Buyer shall waive the
requirement  for a Final Order and schedule  the  Closing,  within five (5) days
notice to Seller after receipt of the FCC Consent,  provided  Buyer has obtained
the  approval to do so from its lenders,  which Buyer  hereby  agrees to use its
best efforts to obtain.  If Buyer fails to specify the date for Closing pursuant
to the preceding sentence prior to the tenth business day after the day on which
the FCC Consent shall have become a Final Order, the Closing shall take place on
the  fifteenth  business  day after the day on which the FCC Consent  shall have
become a Final Order.  The Closing shall be held at the offices of Dow, Lohnes &
Albertson,  1200  New  Hampshire  Avenue,  N.W.,  Suite  800,  Washington,  D.C.
20036-6802, or any other place that is agreed upon by Buyer and Seller.

         8.2 Deliveries by Seller. Prior to or on the Closing Date, Seller shall
deliver to Buyer the following, in form and substance reasonably satisfactory to
Buyer and its counsel:

                  (a) Transfer  Documents.  Duly executed  bills of sale,  motor
vehicle  titles,  assignments  and  other  transfer  documents  which  shall  be
sufficient to vest good and marketable  title to the Assets in the name of Buyer
or  its  permitted  assignees,  free  and  clear  of  any  claims,  liabilities,
mortgages,  liens, pledges,  conditions,  charges, or encumbrances of any nature
whatsoever (except for liens for current taxes not yet due and payable);

                  (b)  Consents.   The  original  of  each  Consent   marked  as
"material" with an asterisk on Schedule 3.8;

                                       35



<PAGE>




                  (c)  Seller's  Certificate.  A  certificate,  dated  as of the
Closing Date, executed by Seller,  certifying:  (i) that the representations and
warranties  of Seller  contained in this  Agreement are true and complete in all
material respects as of the Closing Date, as though made on and as of that date;
and (ii) that Seller has, in all material  respects,  performed its  obligations
and complied with its covenants set forth in this  Agreement to be performed and
complied with prior to or on the Closing Date;

                  (d)  Secretary  Certificate.  A  certificate,  dated as of the
Closing Date, executed by Seller's Secretary:  (i) certifying that the execution
and delivery of this Agreement by Seller and the consummation of the transaction
contemplated  hereby have been authorized and ratified;  and (ii) providing,  as
attachments  thereto,  a certificates of good standing  certified by appropriate
Delaware and Florida  state  officials;  as of a date not more than fifteen (15)
days before the Closing Date and copies of Seller's Certificate of Incorporation
and By Laws certified by Seller's Secretary as of the Closing Date;

                  (e)  Opinions  of Counsel.  Opinions  of Seller's  counsel and
communications  counsel dated as of the Closing Date, and addressed to Buyer and
at Buyer's directions, to Buyer's lenders, substantially in the form of Schedule
8.2 hereto;

                  (f)  Estoppel  Certificates.   Estoppel  certificates  of  the
lessors  of all  leasehold  and  subleasehold  interests  included  in the  Real
Property and  estoppel  certificates  of  contracting  parties to those  Assumed
Contracts  listed in Schedule 3.7 that are  designated to indicate that estoppel
certificates are required under this paragraph;

                  (g) Tax, Lien, and Judgment Searches.  Results of a search for
tax, lien, and judgment filings in the Secretary of State's records of the State
of Florida and in the records of Palm Beach and Martin Counties,  Florida,  such
searches  having  been made no earlier  than  fifteen  days prior to the Closing
Date.

                  (h)  Leases.  The leases  and other  agreements  described  in
Section 6.10.

                                       36



<PAGE>




         8.3 Deliveries by Buyer.  Prior to or on the Closing Date,  Buyer shall
deliver to Seller the following,  in form and substance reasonably  satisfactory
to Seller and its counsel:

                  (a)  Purchase  Price.  The  Purchase  Price  paid to Seller or
Seller's designee as provided in Section 2.3;

                  (b) Paxson Tower Assets.  Documents  sufficient to convey good
and marketable title to the Paxson Tower Assets to Seller.

                  (c) Assumption  Agreements.  Appropriate assumption agreements
pursuant  to  which  Buyer  shall  assume  and  undertake  to  perform  Seller's
obligations  under the  Licenses and Assumed  Contracts  arising on or after the
Closing Date;

                  (d)  Officer's  Certificate.  A  certificate,  dated as of the
Closing Date,  executed by Buyer,  certifying (i) that the  representations  and
warranties  of Buyer  contained in this  Agreement  are true and complete in all
material  respects as of the Closing Date,  except for changes  contemplated  by
this Agreement,  as though made on and as of that date, and (ii) that Buyer has,
in all material  respects,  performed  its  obligations  and  complied  with its
covenants  set forth in this  Agreement to be  performed or complied  with on or
prior to the Closing Date;

                  (e) Secretary's  Certificate.  A certificate,  dated as of the
Closing  Date,   executed  by  Buyer's   Secretary:   (i)  certifying  that  the
resolutions, as attached to such certificate, were duly adopted by Buyer's Board
of Directors,  authorizing and approving the execution of this Agreement and the
consummation of the transaction  contemplated  hereby and that such  resolutions
remain  in  full  force  and  effect;  and  (ii) a copy  of the  certificate  of
incorporation and Bylaws of Buyer as in effect on the date hereof,  certified by
Buyer's secretary as of the Closing Date;

                                       37



<PAGE>




                  (f) Opinion of Counsel.  An opinion of Buyer's General Counsel
dated as of the Closing Date, substantially in the form of Schedule 8.3 hereto.




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                                       38



<PAGE>




                                    SECTION 9
                           RIGHTS OF BUYER AND SELLER
                            ON TERMINATION OR BREACH

         9.1 Termination Rights.

                  (a)This  Agreement may be terminated by either Buyer or Seller
if the terminating party is not then in breach of any material provision of this
Agreement, upon written notice to the other party, upon the occurrence of any of
the following:

                           (i)  If on  the  date  that  would  otherwise  be the
Closing  Date (i) any of the  conditions  precedent  to the  obligations  of the
terminating  party set forth in Section 7 of this Agreement  shall not have been
satisfied, and (ii) satisfaction of such condition shall not have been waived by
the terminating party;

                           (ii) If the  Closing  shall not have  occurred  on or
before January 1, 1998; or

                           (iii) There shall be in effect on the date that would
otherwise be the Closing Date any judgment,  decree, or order that would prevent
or make unlawful the Closing.

                  (b) This  Agreement may be  terminated by Buyer,  upon written
notice to Seller, upon the occurrence of any of the following:

                           (i) Buyer  shall have  notified  Seller no later than
thirty (30) days after the date hereof of material  environmental hazards (which
shall mean for those which, in the aggregate,  costs of remediation would exceed
Fifty  Thousand  Dollars  ($50,000)  as  indicated  in the  environmental  study
described in Schedule  6.11 and the cause  thereof  shall not have been remedial
prior to thirty (30) days following such notice.

                           (ii) Buyer shall have  notified  Seller no later then
thirty (30) days after the date hereof of material deficiencies in the technical
operations or equipment of any of the Stations,  as indicated in the engineering
study  described  in Section  6.12,  and the cause  thereof  shall not have been
remedied prior to thirty (30) days following such notice.

Upon  termination:  (i) if neither party hereto is in breach of any provision of
this Agreement,  the parties hereto shall not have any further liability to each
other;  (ii) if  Seller  shall be in breach of any  material  provision  of this
Agreement,  Buyer  shall  have all rights and  remedies  available  at


                                       39



<PAGE>



law or in equity or (iii) if Buyer shall be in breach of any material  provision
of this  Agreement,  Seller  shall be  entitled  only to  liquidated  damages as
provided  in Section 9.2 hereof.  If,  upon  termination,  Buyer shall not be in
breach of any material provision of this Agreement, the Escrow Deposit, plus all
interest or other proceeds from the investment thereof, shall be paid to Buyer.

         9.2  Liquidated  Damages.  In the event this Agreement is terminated by
Seller due to a  material  breach by Buyer of its  representations,  warranties,
covenants and other  obligations  under this Agreement,  then the Escrow Deposit
shall be paid to Seller as liquidated  damages,  it being agreed that the Escrow
Deposit shall constitute full payment for any and all damages suffered by Seller
by reason of Buyer's failure to close this Agreement.  Buyer and Seller agree in
advance that actual  damages would be difficult to ascertain and that the amount
of the Escrow  Deposit is a fair and  equitable  amount to reimburse  Seller for
damages sustained due to Buyer's breach of this Agreement. All interest or other
proceeds from the investment of the Escrow Deposit,  shall be paid to Buyer. 

         9.3  Specific  Performance.  The  parties  recognize  that in the event
Seller should refuse to perform under the provisions of this Agreement, monetary
damages alone would not be adequate. Buyer shall therefore be entitled to obtain
specific performance of the terms of this Agreement.  In the event of any action
to enforce this  Agreement,  Seller  hereby  waives the defense that there is an
adequate  remedy at law.  

         9.4  Defaults.  In the  event  of a  default  by a  party  hereto  (the
"Defaulting  Party")  which  results  in the  filing of a lawsuit  for  damages,
specific performance,  or other remedy the other party (the Nondefaulting Party)
shall be entitled to  reimbursement  by the Defaulting Party of reasonable legal
fees and expenses incurred by the Nondefaulting Party.



                                       40



<PAGE>




                                   SECTION 10
                    SURVIVAL OF REPRESENTATIONS AND WARRANTS,
                               AND INDEMNIFICATION

         10.1 Representations and Warranties. All representations and warranties
contained  in this  Agreement  shall be deemed  continuing  representations  and
warranties,  and shall  survive  the  Closing  Date for a period of twelve  (12)
months (the "Survival Period").  Any investigations by or on behalf of any party
hereto shall not constitute a waiver as to  enforcement  of any  representation,
warranty, or covenant contained herein.

         10.2  Indemnification  by Seller.  Following the Closing,  Seller shall
indemnify  and hold  Buyer  harmless  against  and with  respect  to,  and shall
reimburse Buyer for:

                  (a) Any and all losses,  liabilities or damages resulting from
any untrue representation, breach of warranty or nonfulfillment of any covenants
by  Seller  contained  herein  or in any  certificate,  document  or  instrument
delivered to Buyer hereunder.

                  (b) Any and all  obligations  of Seller  not  assumed by Buyer
pursuant to the terms hereof;

                  (c) Any and all losses,  liabilities or damages resulting from
the operation or ownership of the Stations prior to the Closing Date,  including
any and all  liabilities  arising  under the  Licenses or the Assumed  Contracts
which relate to events occurring prior to the Closing Date; and

                  (d) Any and all actions, suits, proceedings,  claims, demands,
assessments,  judgments,  and reasonable costs and expenses,  incident to any of
the foregoing or incurred in investigating or attempting to avoid the same or to
oppose the imposition thereof.

                                       41



<PAGE>




         10.3  Indemnification  by Buyer.  Following  the  Closing,  Buyer shall
indemnify  and hold  Seller  harmless  against  and with  respect  to, and shall
reimburse Seller for:

                  (a) Any and all losses,  liabilities or damages resulting from
any untrue representation, breach of warranty or nonfulfillment of any covenants
by Buyer contained herein or in any certificate delivered to Seller hereunder;

                  (b) Any and all losses,  liabilities or damages resulting from
Buyer's  operation or  ownership  of the Stations on or after the Closing  Date,
including any and all  liabilities or obligations  arising under the Licenses or
the Assumed Contracts which are assumed by Buyer under this Agreement; and

                  (c) Any and all actions, suits, proceedings,  claims, demands,
assessments,  judgments, and reasonable costs and expenses, including reasonable
legal  fees and  expenses,  incident  to any of the  foregoing  or  incurred  in
investigating  or  attempting  to avoid  the same or to  oppose  the  imposition
thereof.

         10.4 Procedures for Indemnification. The procedures for indemnification
shall be as follows:

                  A. The party  claiming the  indemnification  (the  "Claimant")
shall  promptly  give notice to the party from whom  indemnification  is claimed
(the "Indemnifying  Party") of any claim, whether between the parties or brought
by a third party,  specifying (i) the factual basis for such claim, and (ii) the
amount of the claim. If the claim relates to an action, suit or proceeding filed
by a third party against Claimant, such notice shall be given by Claimant within
five (5) days after written notice of such action,  suit or proceeding was given
to Claimant.

                  B.  Following  receipt of notice from the Claimant of a claim,
the Indemnifying Party shall have thirty (30) days to make such investigation of
the claim as the  Indemnifying  Party  deems  necessary  or  desirable.  For the
purposes of such  investigation,  the Claimant  agrees to make  available to the
Indemnifying  Party  and/or its  authorized  representative(s)  the  information
relied upon by the Claimant to  substantiate  the claim.  If the 


                                       42



<PAGE>



Claimant and the Indemnifying  Party agree at or prior to the expiration of said
thirty (30) day period (or any mutually  agreed upon  extension  thereof) to the
validity and amount of such claim, or if the Indemnifying Party does not respond
to such notice, the Indemnifying Party shall immediately pay to the Claimant the
full  amount of the claim.  Buyer  shall be  entitled to apply any or all of the
Accounts  Receivable  collected on behalf of Seller to a claim as to which Buyer
is entitled to indemnification  hereunder.  If the Claimant and the Indemnifying
Party do not agree  within said period (or any  mutually  agreed upon  extension
thereof), the Claimant may seek appropriate legal remedy.

                  C. With  respect to any claim by a third party as to which the
Claimant is entitled to indemnification  hereunder, the Indemnifying Party shall
have the right at its own expense,  to  participate  in or assume control of the
defense  of  such  claim,  and the  Claimant  shall  cooperate  fully  with  the
Indemnifying Party, subject to reimbursement for reasonable actual out-of-pocket
expenses incurred by the Claimant as the result of a request by the Indemnifying
Party. If the Indemnifying  Party elects to assume control of the defense of any
third-party  claim,  the  Claimant  shall have the right to  participate  in the
defense of such claim at its own expense.

                  D. If a  claim,  whether  between  the  parties  or by a third
party,  requires  immediate action, the parties will make all reasonable efforts
to reach a decision with respect thereto as expeditiously as possible.

                  E. If the Indemnifying  Party does not elect to assume control
or otherwise  participate  in the defense of any third party claim,  it shall be
bound by the results obtained by the Claimant with respect to such claim.

                  F. The  indemnification  rights  provided in Sections 10.2 and
10.3 shall extend to the shareholders,  directors,  officers, partners employees
and  representatives  of the Claimant although for the purpose of the procedures
set forth in this Section 10.4, any indemnification claims by such parties shall
be made by and through the Claimant.

         10.5 Limitation on Indemnification.  Neither party shall be entitled to
indemnification hereunder for any losses, liabilities, or damages resulting from
any untrue  representation or breach of warranty by the other party unless (i) a
claim for such  losses,  liabilities,  or damages was made  during the  Survival
Period  and (ii) the  aggregate  loss,  damage or  expense  for all such  claims
exceeds  $33,000,  in which  event the  indemnified  party  shall be entitled to
recover all

                                       43



<PAGE>



such loss, damage or expense. In no event shall the aggregate amount required to
be paid by either indemnifying party hereunder for any losses,  liabilities,  or
damages  resulting from any untrue  representation or breach of warranty by such
party exceed $3,300,000. The limitations in this Subsection 10.5 shall not apply
to any claim for  indemnification for any liability of the Claimant to any third
party or to claims by Buyer  arising  from any defect in  Seller's  title to the
Assets.




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                                       44



<PAGE>




                                   SECTION 11
                                  MISCELLANEOUS

         11.1 Notices. All notices,  demands, and requests required or permitted
to be given under the provisions of this Agreement shall be (i) in writing, (ii)
delivered  by  personal  delivery,  or sent by  commercial  delivery  service or
registered  or  certified  mail,  return  receipt  requested,  or  by  facsimile
transmission, with receipt confirmation,  (iii) deemed to have been given on the
date of personal  delivery or the date set forth in the records of the  delivery
service or on the return receipt, and (iv) addressed as follows:

If to Seller:              American Radio Systems Corporation
                           116 Huntington Avenue
                           Boston, MA  02116
                           Attn:  Steven B. Dodge
                           Fax:  (617) 375-7575

With a Copy to:            American Radio Systems
                           116 Huntington A enue
                           Boston, MA  02116
                           Attn:  Michael B. Milsom
                           Fax:  (617) 375-7550

If to Buyer:               Paxson Communications of West Palm Beach, Inc.
                           c/o Paxson Communications Corporation
                           601 Clearwater Park Road
                           West Palm Beach, Florida  33401
                           Attention:  Lowell W. Paxson, President
                           Fax:  (561)659-4252

With a copy to:            Dow, Lohnes & Albertson
                           1200 New Hampshire Avenue,  N.W., Suite 800
                           Washington, D.C. 20036-6802
                           Attention: John R. Feore, Jr.
                           Fax: (202) 776-2222

                                       45



<PAGE>


or to such other  additional  persons and addresses as the parties may from time
to time designate in a writing delivered in accordance with this Section 11.1.

         11.2 Benefit and Binding  Effect.  Neither party hereto may assign this
Agreement  without prior written consent of the other party hereto,  except that
Buyer may assign its rights and  obligations  under this Agreement to any entity
controlled  by or commonly  controlled  with  Paxson,  provided,  however,  that
following  which  assignment  Buyer  shall  remain  liable to Seller  for all of
Buyer's obligations hereunder. This Agreement shall be binding upon and inure to
the benefit of the parties hereto and their respective  successors and permitted
assigns.

         11.3 Governing Law. This Agreement  shall be governed,  construed,  and
enforced in accordance  with the internal laws of the State of Florida  (without
regard to the choice of law provisions thereof).

         11.4 Headings.  The headings  herein are included for ease of reference
only and  shall not  control  or  affect  the  meaning  or  construction  of the
provisions of this Agreement.

         11.5 Gender and Number. Words used herein, regardless of the gender and
number  specifically  used,  shall be deemed and  construed to include any other
gender, masculine, feminine or neuter, and any other number, singular or plural,
as the context required.

         11.6 Entire Agreement.  This Agreement,  all schedules hereto,  and all
documents  and  certificates  to be  delivered  by the parties  pursuant  hereto
collectively  represent the entire understanding and agreement between Buyer and
Seller with respect to the subject matter hereof. All schedules attached to this
Agreement shall be deemed part of this Agreement and incorporated  herein, where
applicable,  as if fully set forth herein.  This Agreement  supersedes all prior
negotiations  between  Buyer and  Seller,  and all  letters  of intent and other
writings related to such  negotiations,  and cannot be amended,  supplemented or
modified  except by an agreement in writing  which makes  specific  reference to
this Agreement and is signed by the party against which  enforcement of any such
amendment, supplement or modification is sought.

         11.7 Waiver of Compliance;  Consents.  Except as otherwise  provided in
this Agreement, any failure of any of the parties to comply with any obligation,
representation,  warranty, covenant, agreement or condition herein may be waived
by the party  entitled  to the  benefits  thereof  only by a written  instrument
signed by the party  granting such waiver,  but such waiver or failure to insist
upon strict compliance with such obligation, representation, warranty,

                                       46



<PAGE>



covenant,  agreement or condition  shall not operate as a waiver of, or estoppel
with  respect to, any  subsequent  or other  failure.  Whenever  this  Agreement
requires or permits  consent by or on behalf of any party  hereto,  such consent
shall be given in writing in a manner  consistent  with the  requirements  for a
waiver of compliance as set forth in this Section 11.7.

         11.8   Severability.   If  any  provision  of  this  Agreement  or  the
application   thereof  to  any  person  or  circumstance  shall  be  invalid  or
unenforceable or any extent, the remainder of this Agreement and the application
of such  provision  to other  persons  or  circumstances  shall not be  affected
thereby and shall be enforced to the greater extent permitted by law.

         11.9  Counterparts.  This  Agreement may be signed in two  counterparts
with the same effect as if the signature on each such  counterpart were upon the
same instrument.




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                                       47



<PAGE>




         IN WITNESS  WHEREOF,  this  Agreement  has been  executed  by Buyer and
Seller as of the date first above written.


         SELLER:           AMERICAN RADIO SYSTEMS CORPORATION



                                            By:      __________________________

                                            Title:

         BUYER:            PAXSON COMMUNICATIONS OF WEST PALM 
                           BEACH, INC.


                                            By:      __________________________

                                            Title:



                                       48



<PAGE>


                      SCHEDULES TO ASSET PURCHASE AGREEMENT


1.8               Escrow Agreement

2.3(b)            Paxson Tower Assets

3.4               Licenses

3.5               Real Property

3.6               Personal property

3.7               Assumed Contracts

3.8               Consents required

3.9               Trademarks; trade names; copyrights

3.10              Insurance

3.12              Employee Benefit Plans and Employees

3.14              Claims; legal actions

3.20              Transactions with Affiliates

6.10              Tower Lease Arrangements; (a) through (h)

8.2               Opinion of Seller's General and FCC Counsels

8.3               Opinion of Buyer's General Counsel


                                       49





                                                                   EXHIBIT 10.12












                            ASSET EXCHANGE AGREEMENT

                                  By and Among

                       AMERICAN RADIO SYSTEMS CORPORATION

                      AMERICAN RADIO SYSTEMS LICENSE CORP.

                                 CITICASTERS CO.

                    REGENT BROADCASTING OF KANSAS CITY, INC.

                                       and

                      REGENT LICENSEE OF KANSAS CITY, INC.


                                   Dated as of

                                  June 19, 1997








<PAGE>



<TABLE>
<CAPTION>
                                TABLE OF CONTENTS


<S>               <C>                                                                                           <C>
ARTICLE 1         DEFINED TERMS...................................................................................2

ARTICLE 2         EXCHANGE OF LICENSES AND STATIONS...............................................................2
         2.1      Agreement to Exchange Licenses and Stations.....................................................2
         2.2      Appraisals; Tax Reporting.......................................................................3
         2.3      Assumption of Liabilities and Obligations. .....................................................4
         2.4      Closing Date....................................................................................8
         2.5      Accounts Receivable.  ..........................................................................9

ARTICLE 3         REPRESENTATIONS AND WARRANTIES OF THE JACOR PARTIES............................................10
         3.1      Organization and Business; Power and Authority; Effect of Transaction..........................10
         3.2      Financial and Other Information.  .............................................................11
         3.3      Material Statements and Omissions; Absence of Events...........................................11
         3.4      Changes in Condition...........................................................................12
         3.5      Title to Properties; Leases.  .................................................................12
         3.6      Compliance with Private Authorizations.........................................................13
         3.7      Compliance with Governmental Authorizations and Applicable Law.................................13
         3.8      Intangible Assets..............................................................................14
         3.9      Related Transactions...........................................................................15
         3.10     Tax Matters....................................................................................15
         3.11     Employee Benefit Plans; Jacor Station Employees................................................15
         3.12     Material Agreements............................................................................16
         3.13     Ordinary Course of Business....................................................................17
         3.14     Broker or Finder...............................................................................17
         3.15     Environmental Matters..........................................................................17
         3.16     Trade or Barter................................................................................18

ARTICLE 4         REPRESENTATIONS AND WARRANTIES OF THE AMERICAN.................................................18
         4.1      Organization and Business; Power and Authority; Effect of Transaction..........................18
         4.2      Financial and Other Information.  .............................................................20
         4.3      Material Statements and Omissions; Absence of Events...........................................20
         4.4      Changes in Condition...........................................................................20
         4.5      Title to Properties; Leases.  .................................................................20
         4.6      Compliance with Private Authorizations.........................................................22
         4.7      Compliance with Governmental Authorizations and Applicable Law.................................22
         4.8      Intangible Assets..............................................................................23
         4.9      Related Transactions...........................................................................23
         4.10     Tax Matters....................................................................................24
         4.11     Employee Benefit Plans; American Station Employees.............................................24
         4.12     Material Agreements............................................................................25
         4.13     Ordinary Course of Business....................................................................25
         4.14     Broker or Finder...............................................................................26
         4.15     Environmental Matters..........................................................................26
         4.16     Trade or Barter................................................................................27

                                       

<PAGE>




ARTICLE 5         COVENANTS......................................................................................27
         5.1      Access to Information; Confidentiality.........................................................27
         5.2      Agreement to Cooperate.........................................................................28
         5.3      Public Announcements...........................................................................34
         5.4      Notification of Certain Matters................................................................34
         5.5      No Solicitation................................................................................34
         5.6      Conduct of Business by the Jacor Parties Pending the Closing...................................35
         5.7      Conduct of Business by American Pending the Closing............................................36
         5.8      Risk of Loss...................................................................................37
         5.9      American and Jacor Station Employees...........................................................38

ARTICLE 6         CLOSING CONDITIONS.............................................................................38
         6.1      Conditions to Obligations of Each Party to Effect the Exchanges................................38
         6.2      Conditions to Obligations of the American Parties.  ...........................................39
         6.3      Conditions to Obligations of the Jacor Parties ................................................41

ARTICLE 7         TERMINATION, AMENDMENT AND WAIVER..............................................................42
         7.1      Termination....................................................................................42
         7.2      Effect of Termination..........................................................................43

ARTICLE 8         INDEMNIFICATION................................................................................44
         8.1      Survival. .....................................................................................44
         8.2      Indemnification................................................................................44
         8.4      Notice of Claims...............................................................................45
         8.5      Defense of Third Party Claims..................................................................45
         8.6      Exclusive Remedy...............................................................................46

ARTICLE 9         GENERAL PROVISIONS.............................................................................46
         9.1      Amendment......................................................................................46
         9.2      Waiver.........................................................................................46
         9.3      Fees, Expenses and Other Payments..............................................................46
         9.4      Notices........................................................................................46
         9.5      Specific Performance; Other Rights and Remedies................................................47
         9.6      Severability...................................................................................48
         9.7      Counterparts...................................................................................48
         9.8      Section Headings...............................................................................48
         9.9      Governing Law..................................................................................48
         9.10     Further Acts...................................................................................48
         9.11     Entire Agreement...............................................................................49
         9.12     Assignment.....................................................................................49
         9.13     Parties in Interest............................................................................49
         9.14     Mutual Drafting................................................................................49
         9.15     American Agent for American License............................................................49
         9.16     Citicasters Agent for the Other Jacor Parties..................................................49
</TABLE>


                                      -ii-

<PAGE>



APPENDIX A:                Definitions

SCHEDULES:                 Jacor Disclosure Schedule
                           American Disclosure Schedule



                                      -iii-

<PAGE>






                            ASSET EXCHANGE AGREEMENT

         This ASSET EXCHANGE  AGREEMENT  (this  "Agreement") is dated as of June
19,1997, by and among American Radio Systems Corporation, a Delaware corporation
("American"  or an "American  Party"),  American  Radio Systems  License Corp, a
Delaware   corporation   ("American   License"  or  an  "American   Party"  and,
collectively with American,  the "American  Parties"),  Citicasters Co., an Ohio
corporation  ("Citicasters"),  Regent  Broadcasting  of  Kansas  City,  Inc.,  a
Delaware  corporation  ("Regent  Broadcasting"),  and Regent  Licensee of Kansas
City, Inc., a Delaware  corporation  ("Regent  Licensee" and,  collectively with
Regent  Broadcasting,  the "Regent  Parties",  the Regent Parties,  being herein
referred to with  Citicasters,  individually as a "Jacor Party" and collectively
as the "Jacor Parties" or "Jacor").

         WHEREAS,  Citicasters  is the licensee of and operates  radio  stations
WDAF(AM)  and  KYYS(FM),  Kansas City,  Missouri  (the  "Citicasters  Stations")
pursuant to licenses  issued to  Citicasters  by the FCC (the  "Citicasters  FCC
Licenses"), and Regent Broadcasting operates and Regent Licensee is the licensee
of radio stations KMXV(FM),  Kansas City, Missouri,  and KUDL(FM),  Kansas City,
Kansas (the "Regent Stations" and,  collectively with the Citicasters  Stations,
the "Jacor Stations")  pursuant to licenses issued to Regent Licensee by the FCC
(the "Regent FCC Licenses" and,  collectively with the Citicasters FCC Licenses,
the "Jacor FCC Licenses");

         WHEREAS,  American  operates  and  American  License is the licensee of
radio  stations  WMMX(FM),   WTUE(FM)  and  WONE(AM),  Dayton,  Ohio,  WLQT(FM),
Kettering-Dayton,  Ohio, WBTT(FM),  Englewood,  Ohio and WXEG(FM),  Beavercreek,
Ohio (the "American  Stations")  pursuant to licenses issued to American License
by the FCC (the "American FCC Licenses");

         WHEREAS,  (i) American  License and Citicasters  desire to exchange the
American Citicasters FCC Licenses for the Citicasters FCC Licenses, and American
and Citicasters  desire to exchange the American  Citicasters Assets (other than
the American  Citicasters FCC Licenses) for the  Citicasters  Assets (other than
the Citicasters FCC Licenses) (collectively,  the "Citicasters  Exchange"),  and
(ii) American License and Regent Licensee desire to exchange the American Regent
FCC Licenses for the Regent FCC Licenses,  and American and Regent  Broadcasting
desire to exchange the American  Regent Assets  (other than the American  Regent
FCC Licenses) for the Regent Assets (other than the Regent FCC Licenses), all on
the terms and subject to the conditions hereinafter set forth (collectively, the
"Regent  Exchange"  and,  collectively  with  the  Citicasters   Exchange,   the
"Exchanges"); and

         WHEREAS,  the  parties  hereto  intend  the  Exchanges  to  qualify  as
Like-Kind Exchanges;

         NOW,  THEREFORE,  in  consideration  of  the  above  premises  and  the
covenants  and  agreements   contained  herein,   American,   American  License,
Citicasters,  Regent  Broadcasting  and Regent Licensee  intending to be legally
bound, do hereby covenant and agree as follows:


                                                     


<PAGE>



                                    ARTICLE 1

                                  DEFINED TERMS

         As used  herein,  the  terms  defined  in  Appendix  A shall  have  the
respective meanings set forth therein.  Terms defined in the singular shall have
a comparable  meaning when used in the plural, and vice versa, and the reference
to any gender shall be deemed to include all genders.  Unless otherwise  defined
or the context otherwise clearly requires, terms for which meanings are provided
in this  Agreement  shall  have such  meanings  when  used in either  Disclosure
Schedule  and each  Collateral  Document  executed  or  required  to be executed
pursuant hereto or thereto or otherwise  delivered,  from time to time, pursuant
hereto or  thereto.  References  to  "hereof",  "herein"  or  similar  terms are
intended to refer to this Agreement as a whole and not a particular section, and
references to "this Section" are intended to refer to the entire section and not
a particular  subsection  thereof.  The term  "either  party" shall refer to the
Jacor Parties and the American Parties.


                                    ARTICLE 2

                        EXCHANGE OF LICENSES AND STATIONS

         2.1 Agreement to Exchange  Licenses and Stations.  Subject to the terms
and conditions set forth in this Agreement:

                  (a)   Citicasters  and  American  hereby  agree  to  exchange,
         transfer and deliver to each other, as applicable, on the Closing Date,
         the  Citicasters  Assets (other than the  Citicasters FCC Licenses) and
         the American  Citicasters  Assets (other than the American  Citicasters
         FCC Licenses);

                  (b) Citicasters and American License hereby agree to exchange,
         transfer and deliver to each other, as applicable,  the Citicasters FCC
         Licenses and the American Citicasters FCC Licenses,

                  (c) Regent Broadcasting and American hereby agree to exchange,
         transfer and deliver to each other, as applicable, on the Closing Date,
         the Regent Assets (other than the Regent FCC Licenses) and the American
         Regent Assets (other than the American Regent FCC Licenses); and

                  (d) Regent  Licensee  and  American  License  hereby  agree to
         exchange, transfer and deliver to each other, as applicable, the Regent
         FCC Licenses and the American Regent FCC Licenses,

in each  case,  free and  clear of any  Liens of any  nature  whatsoever  except
Permitted Liens and Permitted Title Exceptions.


                                       -2-


<PAGE>



         2.2      Appraisals; Tax Reporting.

         (a) The Jacor  Parties  and the  American  Parties  agree that the fair
market value of each asset included in the Jacor Assets and the American  Assets
will be determined on the basis of the appraisals (the  "Appraisals"),  prepared
by the firm of Bond & Pecaro,  whose fee and expenses  shall be equally borne by
Citicasters and Regent Broadcasting, on the one hand, and American, on the other
hand. The parties shall direct Bond & Pecaro to deliver  Appraisals within sixty
(60)  days from the date  hereof  and to set  forth in the  Appraisals  the fair
market value of each asset included in the Jacor Assets and the American Assets.

         (b) Promptly after delivery of the  Appraisals,  and in any event prior
to the Closing  Date,  the parties  shall  prepare and agree upon the  appraised
value of each asset included in the Jacor Assets and the American  Assets (which
values shall be based upon the Appraisals) and shall set forth those values on a
schedule  (the  "Valuation  Schedule").  The parties shall not take any position
inconsistent  with the valuations  set forth on the Valuation  Schedule and will
prepare and file all Tax Returns and reports related to the Exchange,  including
without  limitation  those  required  under  Section  1060 of the  Code  and all
original and amended  federal,  state and local  income Tax Returns,  on a basis
consistent with such valuations.  Each asset included in the Citicasters Assets,
the Regent  Assets,  the American  Citicasters  Assets and the  American  Regent
Assets  shall be set forth in the  appropriate  "exchange  group" and  "residual
group" (each within the meaning of Treas. Reg. section 1.1031(j)-1) on the basis
set forth in the Valuation Schedule.

         (c) Each of the parties intend to report the transactions  contemplated
hereby as a "like-kind exchange" to the maximum extent permissible under Section
1031 of the Code,  consistent  with the Appraisals  and the Valuation  Schedule.
Each of the  parties  shall  cooperate  with the  other in any and all  respects
necessary  to  achieve  like-kind  exchange  treatment  to  the  maximum  extent
permissible  under Section 1031 of the Code and shall endeavor to give the other
notice of any  disallowance  of or  challenge  to such  reporting  by any Taxing
Authority;  provided,  however,  that the failure to give such notice  shall not
result  in any  liability  of the  party  failing  to give the  notice.  Without
limiting  the  generality  of  the   foregoing,   in  order  to  effectuate  the
transactions  contemplated  hereby as a like-kind exchange to the maximum extent
possible  under Section 1031 of the Code,  or to  facilitate  one or more of the
Exchanges (or any part thereof) as part of a deferred like-kind  exchange,  each
of American and  American  License,  on the one hand,  and  Citicasters  and the
Regent Broadcasting and Regent Licensee,  on the other hand, (i) may at any time
at or prior to  Closing  assign  its  rights,  in whole or in part,  under  this
Agreement (but such  assignment  shall not relieve it of its  obligations  under
this  Agreement)  to a  "qualified  intermediary"  (as  defined  in Treas.  Reg.
ss.1.1031(k)-1(g)(4)),  subject  to all  rights  and  obligations  hereunder  of
Citicasters,  Regent  Broadcasting  and Regent  Licensee,  on the one hand,  and
American and American  License,  on the other hand,  respectively,  and, in such
event,  (ii) shall promptly  provide  written  notice of such  assignment to the
other party.  If American or American  Licensee  shall have given notice of such
assignment to a qualified intermediary,  Citicasters, Regent Broadcasting and/or
Regent  Licensee,  as the case may be, shall (i) promptly  provide  American and
American  License  with  written  acknowledgment  of such notice and (ii) at the
Closing, convey the Citicasters Assets or the Regent Assets, as the case may be,
(or such portion of them as shall have been designated in writing by American or
American  License) to the "qualified  intermediary"  rather than to American and
American  License  (which  conveyance  shall,  to  such  extent,  discharge  the
obligation of Citicasters,

                                       -3-


<PAGE>



Regent Broadcasting  and/or Regent Licensee,  as the case may be, to deliver the
Citicasters Assets and the Citicasters Stations and/or the Regent Assets and the
Regent  Stations,  as the  case  may  be,  hereunder).  If  Citicasters,  Regent
Broadcasting and/or Regent Licensee, as the case may be, shall have given notice
of such assignment to a qualified  intermediary,  American and American  License
shall (i)  promptly  provide  Citicasters,  Regent  Broadcasting  and/or  Regent
Licensee,  as the case may be, with  written  acknowledgment  of such notice and
(ii) at the Closing,  convey the American Citicasters Assets and/or the American
Regent Assets (or such portion of them as shall have been  designated in writing
by Citicasters,  Regent Broadcasting and/or Regent Licensee, as the case may be)
to the "qualified intermediary" rather than to Citicasters,  Regent Broadcasting
and/or Regent  Licensee,  as the case may be (which  conveyance  shall,  to such
extent, discharge the obligation of American and American License to deliver the
American   Citicasters   Assets  and/or  the  American  Regent  Assets  and  the
corresponding American Stations hereunder).

         (d)  Notwithstanding the provisions of this Section 2.2, the parties to
this  Agreement  will rely solely on their own advisors in  determining  the tax
consequences of the  transactions  contemplated by this Agreement and each party
is not relying,  and will not rely, on any  representations or assurances of any
other  party  regarding  such  consequences  other  than  the   representations,
warranties,  covenants and  agreements set forth in writing in this Agreement or
furnished  pursuant to the provisions hereof.  Notwithstanding  anything in this
Agreement  to the  contrary,  the  obligations  of the parties set forth in this
Section 2.2 shall survive the Closing.

         2.3      Assumption of Liabilities and Obligations.

         (a) The American Parties agree to assume (i) the Citicasters  Assumable
Agreements at the Closing or, to the extent provided in the Citicasters Stations
TBA,  upon  the TBA Date of the  Citicasters  Stations  TBA and (ii) the  Regent
Assumable  Agreements  at the Closing  or, to the extent  provided in the Regent
Stations TBA, upon the TBA Date of the Regent  Stations TBA. Except as expressly
provided in this Agreement,  including without  limitation Section 2.3(e), or in
the Citicasters  Stations TBA or the Regent  Stations TBA, the American  Parties
shall  not  assume  or become  obligated  to  perform  any  debt,  liability  or
obligation of Citicasters, Regent Broadcasting or Regent Licensee or relating to
the ownership or operation of the Citicasters Assets or the Regent Assets or the
conduct of the business of the Citicasters Stations or the Regent Stations prior
to the Closing whatsoever,  other than to the extent set forth in the assumption
of the Citicasters Assumable Agreements or the Regent Assumable Agreements.  The
parties  acknowledge and agree that the assumption of the Citicasters  Assumable
Agreements and the Regent  Assumable  Agreements shall not, except to the extent
of any  proration  pursuant  to the  provisions  of Section  2.3(e),  entail the
assumption  by  the  American   Parties  of  any   obligation  or  liability  of
Citicasters,  Regent  Broadcasting  or Regent  Licensee  with respect to (i) any
obligations or liabilities  under the  Citicasters  Assumable  Agreements or the
Regent  Assumable  Agreements  relating to the period prior to the Cut-off Date;
(ii) any Claims to which Citicasters,  Regent Broadcasting or Regent Licensee is
a party or to which any of the Citicasters Assets or the Citicasters Stations or
any of the Regent  Assets or the Regent  Stations  is  subject  relating  to the
ownership  or operation of the  Citicasters  Assets or the Regent  Assets or the
conduct of the business of the Citicasters Stations or the Regent Stations prior
to the Closing  (other than as provided in the  Citicasters  Stations TBA or the
Regent  Stations TBA); or (iii) any liability for any Taxes  attributable to the
ownership  or operation of the  Citicasters  Assets or the Regent  Assets or the
conduct of the business of the Citicasters Stations or the Regent Stations on

                                       -4-


<PAGE>



or  prior to the  Closing  Date.  All  such  obligations  and  liabilities  (the
"Citicasters  Nonassumed  Liabilities" and the "Regent Nonassumed  Liabilities",
respectively,  and,  collectively,  the "Jacor  Nonassumed  Liabilities")  shall
remain and be the  obligations and  liabilities  solely of  Citicasters,  Regent
Broadcasting and Regent Licensee, as the case may be.

         (b)  Citicasters  agrees to assume the American  Citicasters  Assumable
Agreements at the Closing or, to the extent provided in the American Citicasters
Stations TBA, upon the TBA Date of the American Citicasters Stations TBA. Except
as expressly  provided in this Agreement,  including without  limitation Section
2.3(f),  or in the American  Citicasters  Stations  TBA,  Citicasters  shall not
assume or become  obligated  to perform any debt,  liability  or  obligation  of
either  American Party or relating to the ownership or operation of the American
Assets or the conduct of the  business  of the  American  Stations  prior to the
Closing whatsoever,  other than to the extent set forth in the assumption of the
American  Citicasters  Assumable  Agreements.  The parties acknowledge and agree
that the assumption of the American Citicasters  Assumable Agreements shall not,
except to the extent of any  proration  pursuant  to the  provisions  of Section
2.3(f),  entail the  assumption by Citicasters of any obligation or liability of
either American Party with respect to (i) any  obligations or liabilities  under
the American  Citicasters  Assumable  Agreements relating to the period prior to
the Cut-off Date;  (ii) any Claims to which either  American Party is a party or
to which any of the American  Assets or any of the American  Stations is subject
relating to the ownership or operation of the American  Assets or the conduct of
the  business  of the  American  Stations  prior to the  Closing  (other than as
provided in the American  Citicasters  Stations TBA); or (iii) any liability for
any Taxes  attributable  to the ownership or operation of the American Assets or
the American  Stations on or prior to the Closing Date. All such obligations and
liabilities (the "American Citicasters Nonassumed Liabilities") shall remain and
be the obligations and liabilities solely of the American Parties.

         (c) The Regent Parties agrees to assume the American  Regent  Assumable
Agreements  at the Closing or, to the extent  provided  in the  American  Regent
Stations TBA, upon the TBA Date of the American  Regent  Stations TBA. Except as
expressly  provided in this  Agreement,  including  without  limitation  Section
2.3(g),  or in the American  Regent  Stations TBA, the Regent  Parties shall not
assume or become  obligated  to perform any debt,  liability  or  obligation  of
either  American Party or relating to the ownership or operation of the American
Assets or the conduct of the  business  of the  American  Stations  prior to the
Closing whatsoever,  other than to the extent set forth in the assumption of the
American Regent Assumable Agreements. The parties acknowledge and agree that the
assumption of the American Regent Assumable  Agreements shall not, except to the
extent of any proration pursuant to the provisions of Section 2.3(g), entail the
assumption  by the  Regent  Parties of any  obligation  or  liability  of either
American  Party with respect to (i) any  obligations  or  liabilities  under the
American Regent Assumable  Agreements relating to the period prior to the Cutoff
Date;  (ii) any Claims to which either American Party is a party or to which any
of the American  Assets or any of the American  Stations is subject  relating to
the ownership or operation of the American Assets or the conduct of the business
of the  American  Stations  prior to the Closing  (other than as provided in the
American Regent Stations TBA); or (iii) any liability for any Taxes attributable
to the ownership or operation of the American Assets or the American Stations on
or  prior to the  Closing  Date.  All  such  obligations  and  liabilities  (the
"American Regent  Nonassumed  Liabilities"  and,  collectively with the American
Citicasters Nonassumed Liabilities, the "American

                                       -5-


<PAGE>



Nonassumed  Liabilities")  shall remain and be the  obligations  and liabilities
solely of the American Parties.

         (d)  Notwithstanding  anything  contained  in  this  Agreement  to  the
contrary and except as otherwise  provided in the Citicasters  Stations TBA, the
Regent  Stations  TBA,  the  American  Citicasters  Stations TBA or the American
Regent  Stations  TBA,  as the case may be,  all  items of  income  and  expense
(including without limitation with respect to rent, utilities, Pro Ratable Taxes
and wages,  salaries and accrued but unused vacation for employees) arising from
the conduct of the  business of (i) the  Citicasters  Stations  and the American
Citicasters  Stations shall be prorated between  American and  Citicasters,  and
(ii) the Regent  Stations and the  American  Regent  Stations  shall be prorated
between  American  and  Regent  Broadcasting,  in each case,  as of 12:01  a.m.,
Eastern time, on the Cut-Off Date, with the transferring  party  responsible for
any such items prior to the Cut-off Date and the  transferee  party  responsible
for any such items subsequent to the Cut-off Date.

         (e) Within  sixty  (60) days after the  Cut-Off  Date,  American  shall
deliver to  Citicasters  and Regent  Broadcasting  a  schedule  of its  proposed
prorations  with  respect to the  American  Citicasters  Assets and the American
Citicasters  Stations and the  American  Regent  Assets and the American  Regent
Stations, respectively, which shall set forth in reasonable detail the basis for
those determinations, and which shall account for any amount owed by American to
Citicasters or Regent Broadcasting  pursuant to the provisions of Section 2.3(i)
(the  "Dayton  Proration  Schedule").  The Dayton  Proration  Schedule  shall be
conclusive  and  binding  upon  Citicasters  and  Regent   Broadcasting   unless
Citicasters  or Regent  Broadcasting  provides  American with written  notice of
objection  (the  "Notice  of  Disagreement")   within  thirty  (30)  days  after
Citicasters' and Regent Broadcasting's receipt of the Dayton Proration Schedule,
which  notice  shall  state the  prorations  proposed by  Citicasters  or Regent
Broadcasting,  as the case may be (the  "Jacor  Proration  Schedule").  American
shall have fifteen (15) days from receipt of a Notice of  Disagreement to accept
or reject the Jacor Proration Schedule.  If American rejects the Jacor Proration
Schedule,  and the amount in dispute exceeds Five Thousand Dollars ($5,000), the
dispute  shall be  submitted  within  ten  (10)  days of such  rejection  to the
Chicago,  Illinois  office of Arthur  Andersen & Co.,  LLP (the  "Referee")  for
resolution,  such resolution to be made within thirty (30) days after submission
to the Referee and to be final, conclusive and binding on American,  Citicasters
and Regent Broadcasting.  American,  on the one hand, and Citicasters and Regent
Broadcasting, on the other hand, agree to share equally the cost and expenses of
the Referee, but each party shall bear its own legal and other expenses, if any.
If the  amount  in  dispute  is  equal to or less  than  Five  Thousand  Dollars
($5,000), such amount shall be divided equally between Citicasters and/or Regent
Broadcasting,  on the one hand, and American,  on the other hand. Payment by any
party  pursuant  hereto of the  proration  amounts  determined  pursuant to this
Section  2.3(e)  shall be due  fifteen  (15) days after the last to occur of (i)
Citicasters'  acceptance  of the Dayton  Proration  Schedule  or failure to give
American a timely Notice of Disagreement;  (ii) Regent Broadcasting's acceptance
of the Dayton Proration  Schedule or failure to give American a timely Notice of
Disagreement;  (iii)  American's  acceptance of the Jacor Proration  Schedule or
failure to reject  the Jacor  Proration  Schedule  within  fifteen  (15) days of
receipt of a timely Notice of  Disagreement;  (iv)  American's  rejection of the
Jacor  Proration  Schedule in the event the amount in dispute  equals or is less
than Five Thousand Dollars ($5,000); and (v) notice to American, Citicasters and
Regent Broadcasting of the resolution of the disputed

                                       -6-


<PAGE>



amount by the  Referee  in the event that the  amount in  dispute  exceeds  Five
Thousand Dollars ($5,000).

         (f) Within sixty (60) days after the Cut-Off  Date,  Citicasters  shall
deliver to American a schedule of its  proposed  prorations  with respect to the
Citicasters  Assets  and the  Citicasters  Stations  which  shall  set  forth in
reasonable  detail the basis for those  determinations,  and which shall account
for any amount owed by  Citicasters  to American  pursuant to the  provisions of
Section  2.3(i)  (the  "Citicasters  Kansas  City  Proration   Schedule").   The
Citicasters  Kansas City Proration Schedule shall be conclusive and binding upon
American  unless  American  provides  Citicasters  with a Notice of Disagreement
within thirty (30) days after American's  receipt of the Citicasters Kansas City
Proration Schedule, which notice shall state the prorations proposed by American
(the "American Citicasters Proration Schedule").  Citicasters shall have fifteen
(15)  days from  receipt  of a Notice of  Disagreement  to accept or reject  the
American  Citicasters  Proration  Schedule.  If Citicasters rejects the American
Citicasters  Proration  Schedule and the amount in dispute exceeds Five Thousand
Dollars  ($5,000),  the dispute shall be submitted  within ten (10) days of such
rejection  to the  Referee for  resolution,  such  resolution  to be made within
thirty (30) days after submission to the Referee and to be final, conclusive and
binding on Citicasters  and American.  American and  Citicasters  agree to share
equally the cost and expenses of the Referee,  but each party shall bear its own
legal and other  expenses,  if any. If the amount in dispute is equal to or less
than Five  Thousand  Dollars  ($5,000),  such  amount  shall be divided  equally
between  American and  Citicasters.  Payment by American or Citicasters,  as the
case may be, of the proration amounts determined pursuant to this Section 2.3(f)
shall be due  fifteen  (15)  days  after  the  last to  occur of (i)  American's
acceptance of the Citicasters  Kansas City Proration Schedule or failure to give
Citicasters a timely Notice of Disagreement; (ii) Citicasters' acceptance of the
American  Citicasters  Proration  Schedule  or failure  to reject  the  American
Citicasters  Proration  Schedule within fifteen (15) days of receipt of a timely
Notice of Disagreement; (iii) Citicasters' rejection of the American Citicasters
Proration  Schedule  in the event the amount in  dispute  equals or is less than
Five Thousand Dollars  ($5,000);  and (iv) notice to Citicasters and American of
the  resolution  of the  disputed  amount by the  Referee  in the event that the
amount in dispute exceeds Five Thousand Dollars ($5,000).

         (g) Within sixty (60) days after the Cut-Off Date, Regent  Broadcasting
shall deliver to American a schedule of its proposed  prorations with respect to
the Regent  Assets and the Regent  Stations  which shall set forth in reasonable
detail  the basis for those  determinations,  and which  shall  account  for any
amount owed by Regent  Broadcasting  to American  pursuant to the  provisions of
Section 2.3(i) (the "Regent Kansas City Proration Schedule").  The Regent Kansas
City Proration  Schedule  shall be conclusive  and binding upon American  unless
American  provides  Regent  Broadcasting  with a Notice of  Disagreement  within
thirty (30) days after  American's  receipt of the Regent Kansas City  Proration
Schedule,  which notice  shall state the  prorations  proposed by American  (the
"American Regent Proration  Schedule").  Regent  Broadcasting shall have fifteen
(15)  days from  receipt  of a Notice of  Disagreement  to accept or reject  the
American Regent Proration Schedule.  If Regent Broadcasting rejects the American
Regent  Proration  Schedule  and the amount in  dispute  exceeds  Five  Thousand
Dollars  ($5,000),  the dispute shall be submitted  within ten (10) days of such
rejection  to the  Referee for  resolution,  such  resolution  to be made within
thirty (30) days after submission to the Referee and to be final, conclusive and
binding on Regent  Broadcasting and American.  American and Regent  Broadcasting
agree to share  equally  the cost and  expenses of the  Referee,  but each party
shall bear its own legal and other expenses, if any. If the amount in

                                       -7-


<PAGE>



dispute is equal to or less than Five  Thousand  Dollars  ($5,000),  such amount
shall be divided equally between  American and Regent  Broadcasting.  Payment by
American or Regent  Broadcasting,  as the case may be, of the proration  amounts
determined  pursuant to this Section 2.3(g) shall be due fifteen (15) days after
the  last to  occur of (i)  American's  acceptance  of the  Regent  Kansas  City
Proration  Schedule or failure to give Regent  Broadcasting  a timely  Notice of
Disagreement;  (ii) Regent  Broadcasting's  acceptance  of the  American  Regent
Proration  Schedule or failure to reject the American Regent Proration  Schedule
within  fifteen (15) days of receipt of a timely Notice of  Disagreement;  (iii)
Regent Broadcasting's rejection of the American Regent Proration Schedule in the
event the  amount in  dispute  equals  or is less  than  Five  Thousand  Dollars
($5,000);  and (iv) notice to Regent Broadcasting and American of the resolution
of the  disputed  amount by the  Referee in the event that the amount in dispute
exceeds Five Thousand Dollars ($5,000).

         (h)  Any  payment   required  by  American  to  Citicasters  or  Regent
Broadcasting or by Citicasters or Regent  Broadcasting to American,  as the case
may be, under Section 2.3(e), 2.3(f) or 2.3(g) shall be paid by wire transfer of
immediately  available  funds  to the  account  of the  payee  with a  financial
institution in the United States as designated by such party in the  Citicasters
Kansas City Proration Schedule, the Regent Kansas City Proration Schedule or the
Dayton Proration Schedule, as the case may be, or the Notice of Disagreement (or
by separate  notice in the event a Notice of  Disagreement  is not sent). If any
party fails to pay when due any amount under  Section  2.3(e),  2.3(f) or 2.3(g)
interest on such  amount  will accrue from the date  payment was due to the date
such  payment is made at a per annum rate equal to the "prime rate" as published
daily in the Money Rates  column of the Wall  Street  Journal (or the average of
such rates if more than one rate  indicated)  plus two  percent  (2%),  and such
interest shall be payable upon demand.

         (i) With respect to Trade Agreements American,  as the assigning party,
shall be required to pay to Citicasters and Regent Broadcasting, as the assuming
party and Citicasters and Regent Broadcasting,  as the assigning party, shall be
required to pay to American,  as the assuming party, an amount, if any, by which
the aggregate  obligations and liabilities  (determined in accordance with GAAP)
for unperformed air time under all such Trade Agreements as of 12:01 a.m. on the
applicable  Cut-off  Date  exceeds  by  $20,000,  the fair  market  value of the
services or property  (determined in accordance with GAAP) to be received by the
assuming party  (treating  Citicasters  and Regent  Broadcasting as one assuming
party for these  purposes) under such Trade  Agreements  after 12:01 a.m. on the
applicable  Cut-off  Date under all such  Trade  Agreements.  There  shall be no
payment  required by the assuming  party to the assigning  party with respect to
the  Trade  Agreements,   notwithstanding  that  the  excess,  if  any,  of  the
obligations  and  liabilities  under the Trade  Agreements  over the fair market
value of the services and  property to be received  under such Trade  Agreements
after  12:01  a.m.  on the  applicable  Cut-off  Date is less  than  the  amount
specified in the first sentence of this paragraph.

         (j)  Nothing  contained  in this  Section  2.3 is  intended or shall be
deemed to amend or modify  the  indemnification  provisions  of Article 8 nor to
reallocate responsibility for the matters set forth therein.

         2.4 Closing Date.  The closing of the Exchanges (the  "Closing")  shall
take place at a mutually  convenient  location to be agreed upon by the parties,
at 10:00 a.m., local time, within ten

                                       -8-


<PAGE>



(10) business days after the  satisfaction  or waiver of each of the  conditions
specified in Article 6 (other than those to be satisfied at the Closing) or such
other  date,  prior to the  Termination  Date,  as the  parties  may agree  (the
"Closing  Date").  At the Closing,  (a) each of the parties  shall  deliver such
deeds (in recordable form and  warrantying  against matters not covered by title
insurance other than Permitted Liens and Permitted Title  Exceptions),  bills of
sale,  assignments,   assumptions  of  liabilities  and  other  instruments  and
documents as are described in this  Agreement or as may be otherwise  reasonably
requested  by the parties and their  respective  counsel and the legal  opinions
described in Sections  6.2(b) and 6.3(b),  and (b) as part of the Jacor  Assets,
Jacor shall pay to American an amount equal to the American Tower  Adjustment by
wire transfer of immediately available funds to such account as is designated by
American in written  instructions  to Jacor not later than two (2) business days
prior to the Closing.

         2.5  Accounts  Receivable.  Effective,  if at all,  upon the earlier to
occur of Closing or the commencement of the effectiveness of the applicable TBA,
each of Citicasters and Regent  Broadcasting  hereby appoints American its agent
for  the  purpose  of  collecting  all  Accounts   Receivable  relating  to  the
Citicasters Stations and the Regent Stations,  respectively, and American hereby
appoints  Citicasters  and  Regent  Broadcasting  its agent for the  purpose  of
collecting all Accounts Receivable relating to the American Citicasters Stations
and the American Regent Stations,  respectively. Each party shall deliver to the
other on or as soon as practicable  after the earlier to occur of the applicable
TBA Date or the Closing Date (but, in any event, within ten (10) days after such
earlier date) a complete and detailed statement showing the name, amount and age
of each  Account  Receivable  of its  Stations.  Subject  to and  limited by the
following,  revenues  relating to the  Citicasters  Accounts  Receivable and the
Regent  Accounts  Receivable  will be for the account of Citicasters  and Regent
Broadcasting,  respectively,  and  revenues  relating to the  American  Accounts
Receivable  will be for the account of  American.  Each agent shall use the same
collection  procedures as it uses with respect to its own accounts receivable to
collect the Accounts  Receivable with respect to which it is acting as agent for
a period of ninety (90) days after the applicable  Cut-off Date (the "Collection
Period").  Any payment  received by any agent during the Collection  Period from
any  customer  with an account  which is an Account  Receivable  with respect to
which it is acting as agent shall first be applied in  reduction of such Account
Receivable,  unless the  customer  indicates  otherwise  in writing.  During the
Collection  Period,  each agent shall  furnish the other with a list of, and pay
over to the other, the amounts collected with respect to the Accounts Receivable
with  respect to which it is acting as agent  within five (5) days after the end
of each month during the Collection  Period.  Each agent shall provide the other
with a final  accounting on or before the fifteenth (15th) day following the end
of the  Collection  Period.  Upon the request of either  agent at and after such
time,  the  parties  shall  meet to  mutually  and in  good  faith  analyze  any
uncollected  Accounts  Receivable to determine if the same, in their  reasonable
business judgment,  are deemed to be collectable and if the party which acted as
agent with respect  thereto  desires to retain such  Accounts  Receivable in the
interest of maintaining an  advertising  relationship.  As to each such Accounts
Receivable,  the parties  shall in good faith  attempt to negotiate the value of
such Accounts  Receivable,  which the purchasing party shall pay to the other if
the purchasing  party, in its sole  discretion,  chooses to retain such Accounts
Receivable.  Each party shall  retain the right to collect  any of its  Accounts
Receivable  as to which the  parties  are unable to reach  agreement  as to such
value,  and each party  agrees to turn over to the other any  payments  received
against any such Accounts  Receivable.  None of the agents shall be obligated to
use any extraordinary efforts to collect any of the Accounts Receivable assigned
to it for collection hereunder or to refer any of such

                                       -9-


<PAGE>



Accounts  Receivable to a collection  agency or to any attorney for  collection,
and none of the agents shall make any such referral or compromise, nor settle or
adjust the amount of any such Accounts  Receivable,  except with the approval of
the party entitled to such Accounts  Receivable.  None of the agents shall incur
any liability to any other party for any uncollected  Accounts Receivable unless
such agent shall have engaged in willful  misconduct or gross  negligence in the
performance of its obligations  set forth in this Section.  During and after the
Collection  Period,  without  specific  agreement  with the agent  with  respect
thereto to the contrary, none of the assigning parties nor its agents shall make
any direct  solicitation  of the Accounts  Receivable for  collection  purposes,
except  for  Accounts  Receivable  retained  by the  assigning  party  after the
Collection Period.



                                    ARTICLE 3

               REPRESENTATIONS AND WARRANTIES OF THE JACOR PARTIES

         The Jacor Parties, jointly and severally,  represent and warrant to the
American Parties as follows:

         3.1  Organization  and  Business;   Power  and  Authority;   Effect  of
Transaction.

         (a) Each of the Jacor Parties is a corporation duly organized,  validly
existing  and  in  good  standing  under  the  laws  of  its   jurisdiction   of
organization,  has all  requisite  corporate  power and authority to own or hold
under lease its properties and to conduct its business as now conducted.

         (b) Each of the Jacor  Parties has all  requisite  corporate  power and
authority  necessary  to enable it to execute  and  deliver,  and to perform its
obligations  under,  this  Agreement and each  Collateral  Document  executed or
required to be executed by it pursuant  hereto or thereto or to  consummate  the
Exchanges  and  the  other  Transactions;   and  the  execution,   delivery  and
performance of this Agreement and each Collateral  Document executed or required
to be  executed  pursuant  hereto or thereto  have been duly  authorized  by all
requisite  corporate  or other  action  on the part of the Jacor  Parties.  This
Agreement  has been  duly  executed  and  delivered  by the  Jacor  Parties  and
constitutes,  and each Collateral  Document  executed or required to be executed
pursuant  hereto  or  thereto  or to  consummate  the  Exchanges  and the  other
Transactions  when  executed  and  delivered  by a Jacor Party will  constitute,
legal,  valid and binding  obligations  of such Jacor  Parties,  enforceable  in
accordance with their respective  terms,  except as such  enforceability  may be
limited by  bankruptcy,  moratorium,  insolvency  and similar laws affecting the
rights and remedies of creditors  and  obligations  of debtors  generally and by
general principles of equity.

         (c)  Except as set  forth in  Section  3.1(c)  of the Jacor  Disclosure
Schedule,  neither  the  execution  and  delivery  by the Jacor  Parties of this
Agreement or any Collateral  Document executed or required to be executed by any
of them pursuant hereto or thereto, nor the consummation by the Jacor Parties of
the  Exchanges  and the  other  Transactions,  nor  compliance  with the  terms,
conditions and provisions hereof or thereof by the Jacor Parties:


                                      -10-


<PAGE>



                  (i) will conflict with, or result in a breach or violation of,
         or constitute a default under, any Organic Document of any of the Jacor
         Parties or any  Applicable Law on the part of any of the Jacor Parties,
         or subject to obtaining any required  consents,  will conflict with, or
         result in a breach or violation of, or constitute a default  under,  or
         permit the  acceleration  of any obligation or liability in, or but for
         any  requirement  of giving of notice or  passage of time or both would
         constitute  such a conflict  with,  breach or violation  of, or default
         under,  or  permit  any  such   acceleration  in,  any  Jacor  Material
         Agreement; or

                  (ii)  will  require  any  Jacor  Party to make or  obtain  any
         Governmental    Authorization,    Governmental    Filing   or   Private
         Authorization, except for the FCC Consents, filings, if required, under
         the  Hart-Scott-Rodino Act and Private  Authorizations,  the failure of
         which to be obtained or maintained  would not,  individually  or in the
         aggregate, have an adverse effect on Jacor.

         (d) None of the Jacor  Parties has any direct or indirect  Subsidiaries
or other Affiliates (other than a Jacor Party) which own or have any interest in
any of the  Jacor  Stations  or any of the  Jacor  Assets.  The  Jacor  Stations
constitute  all of the radio  stations  which  any  Jacor  Party or any of their
Affiliates owns or operates or has the right to acquire or operate in the Kansas
City, Missouri radio market.

         3.2      Financial and Other Information.

         (a) The Jacor Parties have  heretofore  furnished to American copies of
the unaudited  financial  statements  of the Jacor  Stations for the years ended
December  31,  1995 and 1996  (the  "Jacor  Financial  Statements").  The  Jacor
Financial  Statements  have been prepared on a consistent  basis  throughout the
periods covered thereby, and fairly present the financial condition,  results of
operations  and cash  flow of the Jacor  Stations,  as of the  respective  dates
thereof and for the respective periods covered thereby.

         (b) Except solely for the  obligations and liabilities to be assumed by
the American Parties pursuant to the Jacor Assumable Agreements,  there will, at
the time of Closing,  be no obligations  or  liabilities of any nature,  whether
accrued, absolute,  contingent or otherwise,  relating to the Jacor Parties, the
Jacor Assets or the Jacor Stations which could, after the Closing, result in any
form of transferee  liability  against either of the American Parties or subject
any of the Jacor  Assets or any of the Jacor  Stations to any Lien or  otherwise
affect the full, free and unencumbered use of the Jacor Assets and the ownership
and operation of the Jacor Stations by American.

         3.3  Material   Statements  and  Omissions;   Absence  of  Events.   No
representation  or  warranty  made  by  the  Jacor  Parties  contained  in  this
Agreement,  the Jacor Disclosure Schedule or any certificate,  document or other
instrument  furnished or to be furnished  by the Jacor  Parties  pursuant to the
provisions  hereof  contains or will contain any untrue  statement of a material
fact or omits or will  omit to state  any  material  fact  required  to make any
statement contained herein or therein not misleading.  None of the Jacor Parties
is aware of any  impending  or  contemplated  Event that would  cause any of the
representations  and  warranties  made by it in  this  Article  not to be  true,
correct and complete on the date of such Event as if made on that date.


                                      -11-


<PAGE>



         3.4 Changes in Condition. Since December 31, 1996, except to the extent
specifically  described in Section 3.4 of the Jacor Disclosure  Schedule,  there
has been no adverse change in the Jacor Assets or the Jacor  Stations.  There is
no Event known to the Jacor Parties which adversely  affects,  or (so far as the
Jacor Parties can now  reasonably  foresee) is likely to adversely  affect,  the
Jacor  Assets or the  Jacor  Stations,  except  (a) to the  extent  specifically
described  in Section 3.4 of the Jacor  Disclosure  Schedule and (b) for general
business and economic  conditions and matters  affecting the radio  broadcasting
industry generally.

         3.5      Title to Properties; Leases.

         (a)  Section  3.5(a) of the Jacor  Disclosure  Schedule  lists all Real
Property  owned by any  Jacor  Party  (the  "Jacor  Owned  Real  Property")  and
describes all Leases of Real Property (the "Jacor Leases") which is used or held
for use in the  operation of the Jacor  Stations  (the Jacor Owned Real Property
and  the  real  property  subject  to  the  Jacor  Leases,   being   hereinafter
collectively referred to as the "Jacor Real Property"). One of the Jacor Parties
has (and American  will upon Closing  obtain) good and  marketable  title to the
Jacor Owned Real Property and valid and  subsisting  leasehold  interests in the
Jacor  Leases,  in each case free and clear of all Liens,  except (i)  Permitted
Liens  and (ii)  Liens  set forth on  Section  3.5(a)  of the  Jacor  Disclosure
Schedule  (which  Liens shall be released  prior to  Closing).  One of the Jacor
Parties  has full  legal and  practical  access to all of the Jacor  Owned  Real
Property, and all easements,  rights of way, and real property licenses relating
thereto have been properly recorded in the appropriate public recording offices,
except  to the  extent,  if any,  set  forth  in  Section  3.5(a)  of the  Jacor
Disclosure  Schedule.  The Jacor  Owned Real  Property,  together  with the real
property  that is subject to the Jacor Leases,  includes all the real  property,
easements, rights of way, and other real property interests necessary to conduct
the business and  operations  of the Jacor  Stations as they are now  conducted.
None of the buildings,  structures,  improvements or fixtures constructed on any
Jacor Owned Real Property and real property that is subject to the Jacor Leases,
including  without  limitation all towers,  guy wires and guy anchors and ground
radials,  encroach  upon  adjoining  real  property,  and  all  such  buildings,
structures, improvements and fixtures, are constructed and are operated and used
in  conformance in all material  respects with all "set back" lines,  easements,
covenants,  restrictions and all applicable building,  fire, zoning,  health and
safety laws and codes, except to the extent, if any, set forth in Section 3.5(a)
of the Jacor  Disclosure  Schedule.  No utility lines serving such real property
pass over the lands of a third party except  where  appropriate  easements  have
been obtained or except as set forth in Section  3.5(a) of the Jacor  Disclosure
Schedule. All buildings, structures, towers, antennae, improvements and fixtures
comprising the Jacor Owned Real Property or real property that is subject to the
Jacor Leases are in good and  technically  sound  operating  condition,  have no
latent  structural  mechanical  or other defects of material  significance,  are
reasonably  suited for the  purposes  for which they are being used and each has
adequate  rights of ingress  and  egress,  utility  service for water and sewer,
telephone,  electric  and/or gas,  and  sanitary  service for the conduct of the
business and operations of the Jacor Stations as presently conducted,  except to
the  extent,  if any,  set  forth in  Section  3.5(a)  of the  Jacor  Disclosure
Schedule. There is no pending or, to Jacor's knowledge,  threatened condemnation
or other legal  proceeding  or action of any kind relating to such real property
and/or title thereto.

         Except as otherwise set forth in Section 3.5(a) of the Jacor Disclosure
Schedule,  each Jacor Lease  included in the Jacor Real  Property  has been duly
authorized, executed and delivered by one

                                      -12-


<PAGE>



of the Jacor  Parties  and,  to  Jacor's  knowledge,  each of the other  parties
thereto,  and is a legally  valid  and  binding  obligation  of one of the Jacor
Parties,  and,  to  Jacor's  knowledge,  each  of  the  other  parties  thereto,
enforceable  in  accordance  with its  terms.  One of the Jacor  Parties  enjoys
peaceful and undisturbed  possession under all Jacor Leases pursuant to which it
will  hold any  Jacor  Real  Property.  All of the  Jacor  Leases  are valid and
subsisting  and in full force and  effect;  none of the Jacor  Parties  nor,  to
Jacor's  knowledge,  any other party thereto,  is in default in the performance,
observance or fulfillment of any obligation,  covenant or condition contained in
any Jacor Lease.

         (b) Section 3.5(b) of the Jacor  Disclosure  Schedule  contains a true,
accurate  and  complete  description  of all  material  items of Jacor  Personal
Property.  One of the Jacor Parties owns and has good and merchantable  title to
all of the Jacor  Personal  Property  relating to the Jacor Stations (the "Jacor
Personal  Property"),  in each  case,  free and clear of all  Liens,  except (i)
Permitted  Liens  and (ii)  Liens  set  forth on  Section  3.5(b)  of the  Jacor
Disclosure Schedule (which Liens shall be released prior to Closing).  Except as
set forth in Section 3.5(b) of the Jacor Disclosure  Schedule,  all of the Jacor
Personal  Property is in a state of good repair and  maintenance  and is in good
operating  condition,  normal wear and tear excepted,  has been  maintained in a
manner consistent with generally accepted standards of good engineering practice
and currently  permits the Jacor Stations to be operated in accordance  with the
terms and conditions of the Jacor FCC Licenses and all Applicable Laws.

         3.6 Compliance  with Private  Authorizations.  Section 3.6 of the Jacor
Disclosure   Schedule  sets  forth  a  true,  accurate  and  complete  list  and
description  of each Jacor Private  Authorization  which,  individually  or when
taken together with other substantially similar Jacor Private Authorizations, is
material  to the Jacor  Assets or the Jacor  Stations,  all of which are in full
force and effect. There does not exist any breach or violation of, or in default
in  the   performance,   observance  or   fulfillment   of,  any  Jacor  Private
Authorization,  and no Event exists or has occurred,  which constitutes,  or but
for any  requirement  of  giving  of notice  or  passage  of time or both  would
constitute,  such a breach,  violation  or  default,  under  any  Jacor  Private
Authorization,  except  as set  forth in  Section  3.6 of the  Jacor  Disclosure
Schedule.  No Jacor Private  Authorization  is the subject of any pending or, to
Jacor's knowledge, threatened attack, revocation or termination.

         3.7 Compliance with Governmental Authorizations and Applicable Law.

         (a)  Section  3.7(a)  of  the  Jacor  Disclosure  Schedule  contains  a
description of:

                  (i) all Claims  pending or, to Jacor's  knowledge,  threatened
         against  any Jacor Party with  respect to the  business,  operation  or
         ownership  of any of the Jacor  Assets  or any of the  Jacor  Stations,
         including without  limitation all Claims which,  individually or in the
         aggregate,  are  reasonably  likely  to  result  in the  revocation  or
         termination  of any of the Jacor FCC Licenses or the  imposition of any
         restriction of such a nature as would adversely affect the ownership or
         operations of any of the Jacor  Stations;  in  particular,  but without
         limiting the generality of the  foregoing,  there are no Claims pending
         or, to Jacor's knowledge, threatened (x) before the FCC relating to the
         business or operations of any of the Jacor  Stations  other than Claims
         which affect the radio broadcasting  industry generally,  or (y) before
         any Authority involving charges of illegal discrimination by any of the
         Jacor Stations under any federal or state employment Laws; and

                                                      -13-


<PAGE>




                  (ii)  each  Governmental   Authorization   (including  without
         limitation all FCC Licenses)  required under Applicable Laws to own and
         operate the Jacor  Stations,  as currently  conducted or proposed to be
         conducted  on or prior to the  Closing  Date,  all of which are in full
         force and effect (the "Jacor Governmental Authorizations").

Attached to the Jacor Disclosure  Schedule are true, correct and complete copies
of the Jacor Governmental  Authorizations  (including without limitation any and
all amendments and other modifications thereto).

         (b) One of the Jacor Parties is the authorized  legal holder of the FCC
Licenses  listed in Section  3.7(a) of the Jacor  Disclosure  Schedule,  none of
which is  subject to any  restriction  or  condition  which  would  limit in any
respect the operations of the Jacor Stations as currently  conducted.  The Jacor
FCC  Licenses are valid and in good  standing,  are in full force and effect and
are not impaired in any respect by any act or omission of any Jacor Party or its
officers,  directors,  employees or agents.  The Jacor Stations are operating in
accordance with the Jacor FCC Licenses, all underlying  construction permits and
the FCA. Except as disclosed in Section 3.7(b) of the Jacor Disclosure Schedule,
no application,  action or proceeding is pending for the renewal or modification
of any Jacor FCC Licenses and, to Jacor's knowledge, there is not as of the date
of this Agreement issued or outstanding any  investigation or complaint  against
any Jacor  Party at the FCC  relating  to any of the Jacor  Stations.  Except as
disclosed in Section 3.7(b) of the Jacor Disclosure Schedule,  as of the date of
this  Agreement,  there is no proceeding  pending at, or  outstanding  notice of
violation from, the FCC relating to any of the Jacor Stations.  All fees payable
to Authorities pursuant to the Jacor Station FCC Licenses,  including FCC annual
regulatory fees, have been paid and no event has occurred which, individually or
in the aggregate, and without the giving of notice or the lapse of time or both,
would constitute  grounds for revocation thereof or would have an adverse effect
on any  Jacor  Party.  Except  (i) as set forth in  Section  3.7(b) of the Jacor
Disclosure Schedule and (ii) for such reports,  forms and statements the failure
of which to file would not,  individually  or in the aggregate,  have an adverse
effect on the Jacor Stations,  all reports,  forms and statements required to be
filed by any Jacor Party with the FCC with  respect to the Jacor  Stations  have
been filed and are true,  complete  and  accurate  in all  respects.  To Jacor's
knowledge,  under the FCA,  there are no facts that would  disqualify  it as the
transferee of the control of the American Stations.

         The  Jacor  Governmental   Authorizations   comprise  all  Governmental
Authorizations  which are necessary for the lawful ownership or operation of the
Jacor Assets or the lawful  conduct of the business of the Jacor Stations as now
conducted,  except  for  Governmental  Authorizations,  the  failure of which to
obtain and  maintain,  would not,  individually  or in the  aggregate,  have any
adverse  effect on the Jacor  Assets or Jacor  Stations.  No Jacor  Governmental
Authorization is the subject of any pending or, to Jacor's knowledge, threatened
challenge  or  proceeding   to  revoke  or  terminate  any  Jacor   Governmental
Authorization.  To Jacor's  knowledge,  except as set forth in Section 3.7(b) of
the Jacor Disclosure Schedule, no Jacor Party has any reason to believe that any
Jacor Governmental  Authorization would not be renewed in the name of one of the
Jacor Parties by the granting Authority in the ordinary course.

         3.8 Intangible  Assets.  Section 3.8 of the Jacor  Disclosure  Schedule
sets forth a true, accurate and complete  description of all material Intangible
Assets held or used by any Jacor Party

                                      -14-


<PAGE>



(other  than  the  Jacor  Governmental  Authorizations  and  the  Jacor  Private
Authorizations)  relating to the  ownership and operation of the Jacor Assets or
the  conduct  of the  business  of the Jacor  Stations  (the  "Jacor  Intangible
Assets"),  including  without  limitation the nature of one of the Jacor Party's
interest in each and the extent to which the same have been duly  registered  in
the offices as indicated therein.  One of the Jacor Parties owns or possesses or
otherwise has the right to use the Jacor Intangible Assets.

         3.9 Related  Transactions.  No Jacor Party is a party or subject to any
Contractual  Obligation  relating to the  ownership  and  operation of the Jacor
Assets or the conduct of the  business of the Jacor  Stations  between any Jacor
Party and any of their respective officers, directors, stockholders or employees
or, to the knowledge of Jacor, any Affiliate of any thereof,  including  without
limitation any Contractual  Obligation  providing for the furnishing of services
to or by, providing for rental of property, real, personal or mixed, to or from,
or  providing  for the  lending or  borrowing  of money to or from or  otherwise
requiring  payments  to or  from,  any such  Person,  other  than (i) the  Jacor
Employee Plans or Jacor Material Agreements  constituting employment agreements,
(ii)  Contracts  between any of the Jacor Parties and its  officers,  directors,
stockholders  or  employees  which will not be part of the Jacor Assets and will
constitute Jacor Excluded Assets and Jacor Nonassumed  Obligations,  and (iii) a
management agreement between Regent Broadcasting and Regent Licensee.

         3.10 Tax Matters. Each of the Jacor Parties has in respect of the Jacor
Assets and the Jacor  Stations filed all material Tax Returns which are required
to be filed,  and has paid, or made  adequate  provision for the payment of, all
Taxes which have or may become due and payable  pursuant to said Tax Returns and
all other governmental charges and assessments received to date other than those
Taxes being contested in good faith. There are no unpaid Taxes which are due and
payable,  or  alleged  to be due  and  payable  by  any  Taxing  Authority,  the
non-payment of which is or could become a Lien on any of the Jacor Assets or any
of the Jacor Stations or result in any transferee  liability  against any of the
Jacor  Parties.  All Taxes in respect of the Jacor Assets and the Jacor Stations
which any Jacor  Party is  required by law to  withhold  and  collect  have,  to
Jacor's knowledge, been duly withheld and collected, and have been paid over, in
a timely manner, to the proper Authorities to the extent due and payable.

         3.11     Employee Benefit Plans; Jacor Station Employees..

         (a) Section 3.11(a) of the Jacor Disclosure  Schedule  contains a true,
accurate  and  complete  list  (and  brief  description)  as of the date of this
Agreement  of all  employee  benefit  plans  which are  applicable  to the Jacor
Station  Employees  ("Jacor  Employee  Plans").  Neither any Jacor Party nor its
Affiliates maintains any other employee benefit plan, as that term is defined in
Section 3 of ERISA, applicable to the Jacor Station Employees.

         (b) Section 3.11(b) of the Jacor Disclosure  Schedule  contains a true,
accurate  and  complete  list of all persons  employed by any Jacor Party in the
ownership or operation of any of the Jacor Assets or the conduct of the business
of any of the Jacor Stations (the "Jacor Station Employees"), together with each
such  employee's  date of hire,  the title or  capacity  in which such person is
employed,  and a description of material  compensation  arrangements (other than
any Jacor Employee Plans).

                                      -15-


<PAGE>




         (c) No Jacor Party has received any notice that,  and no Jacor Party is
aware of, any Jacor Station  Employee who shall or is likely to terminate his or
her employment  relationship  with the Jacor Stations upon the execution of this
Agreement  or after the Closing,  except as set forth in Section  3.11(c) of the
Jacor Disclosure Schedule.

         (d)  Except as  described  in Section  3.11(d) of the Jacor  Disclosure
Schedule,  with  respect to the Jacor  Stations,  (i) none of the Jacor  Station
Employees is now or, to Jacor's  knowledge,  has been  represented  by any labor
union or other employee collective bargaining  organization,  and no Jacor Party
is or has been a party to any  labor or other  collective  bargaining  agreement
with  respect  to  any  Jacor  Station  Employee,  (ii)  there  are  no  pending
grievances,  disputes or  controversies  with any union or any other employee or
collective  bargaining  organization of such  employees,  or threats of strikes,
work stoppages or slowdowns or any pending demands for collective  bargaining by
any such union or other  organization,  and (iii) no Jacor Party nor any of such
employees is now or, to Jacor's  knowledge,  has been subject to, involved in or
threatened   with,   any  union   elections,   petitions   therefore   or  other
organizational or recruiting activities,  in each case with respect to any Jacor
Station Employee.

         (e)  Except as  disclosed  in Section  3.11(e) of the Jacor  Disclosure
Schedule,  each of the Jacor Parties have complied in all material respects with
all laws relating to the  employment of labor,  including,  without  limitation,
ERISA  and  those  laws  relating  to  wages,  hours,   collective   bargaining,
unemployment insurance, workers' compensation,  equal employment opportunity and
payment and withholding of taxes.

         3.12  Material  Agreements.   Listed  on  Section  3.12  of  the  Jacor
Disclosure  Schedule are all Material  Agreements  relating to the  ownership or
operation  of the  Jacor  Assets or the  conduct  of the  business  of the Jacor
Stations  or to which any  Jacor  Party is a party or to which it is bound or to
which any of the Jacor  Assets is or will,  as of such  time,  be  subject  (the
"Jacor Material Agreements"). True, accurate and complete copies of each of such
Material  Agreements  have been made  available by the Jacor Parties to American
and the Jacor  Parties  have  provided  American  with  photocopies  of all such
Material  Agreements  requested  by American  (or true,  accurate  and  complete
descriptions thereof have been set forth in Section 3.12 of the Jacor Disclosure
Schedule,  if any such Material  Agreements are oral). All of the Jacor Material
Agreements  relating  to the Jacor  Stations  are  valid,  binding  and  legally
enforceable  obligations  of one of the Jacor  Parties,  and,  in all cases,  to
Jacor's  knowledge,  all other parties thereto,  and one of the Jacor Parties is
validly and lawfully  conducting  the business of the Jacor  Stations and owning
and operating the Jacor Assets under each of the Jacor Material Agreements. Each
of the Jacor Parties has duly  complied with all of the terms and  conditions of
each Jacor Material Agreement and none has done or performed, or failed to do or
perform (and, to Jacor's knowledge, there is no pending or threatened Claim that
any Jacor  Party has not so  complied,  done and  performed  or failed to do and
perform) any act which would  invalidate or provide  grounds for the other party
thereto to terminate  (with or without  notice,  passage of time or both) any of
the Jacor Material Agreements or impair the rights or benefits,  or increase the
costs, of any Jacor Party under any of Jacor Material Agreement.  No Jacor Party
has  expressly  granted  any  waivers or  forbearance  under any Jacor  Material
Agreement and, to Jacor's  knowledge,  no third party is in material  default in
the  performance of any of its obligations  under any Jacor Material  Agreement.
Except for those consents or approvals listed in Section 3.12 of the Jacor

                                      -16-


<PAGE>



Disclosure  Schedule,  no consents or approvals of any third party are necessary
to permit the assignment by the Jacor Parties of the Jacor  Material  Agreements
to American and such assignment  will not affect the validity or  enforceability
of any Jacor Material  Agreement or cause any material change in the substantive
terms of any of them.

         3.13 Ordinary Course of Business.  Each of the Jacor Parties,  from the
later of December 31, 1996 or the acquisition of the applicable Jacor Assets and
Jacor  Stations to the date  hereof,  except (i) as may be  described on Section
3.13 of the Jacor Disclosure  Schedule,  or (ii) as may be required or expressly
contemplated  by the terms of this  Agreement,  with respect to the Jacor Assets
and the Jacor  Stations,  has  operated  its  business in the normal,  usual and
customary manner in the ordinary and regular course of business, consistent with
prior practice and

                  (a) has not sold or  otherwise  disposed of or  contracted  to
         sell or otherwise dispose of any of the Jacor Assets;

                  (b) other than in the ordinary course of business,  consistent
         with prior practice:

                           (i) has not made or committed  to make any  additions
                  to its  property or any  purchases  of  equipment,  except for
                  normal maintenance and replacements; and

                           (ii) has not increased the compensation payable or to
                  become  payable  to any of its  employees  other  than  in the
                  ordinary course of business or otherwise altered,  modified or
                  changed the terms of their employment;

                  (c) has not suffered any material damage,  destruction or loss
         (whether or not covered by insurance) or any  acquisition  or taking of
         property by any Authority; and

                  (d) has not experienced any work stoppage.

         3.14  Broker or Finder.  No Person  assisted  in or  brought  about the
negotiation of this Agreement,  the Exchanges or the subject matter of any other
Transaction  in the  capacity  of  broker,  agent or  finder  or in any  similar
capacity on behalf of any Jacor Party.

         3.15 Environmental Matters.  Except as set forth in Section 3.15 of the
Jacor Disclosure Schedule, solely with respect to the Jacor Assets and the Jacor
Real Property, no Jacor Party:

                  (a) has been notified in writing that it is potentially liable
         under,  has  received  any  written  request for  information  or other
         correspondence  concerning its potential  liability with respect to any
         site or facility under, or is a "potentially  responsible party" under,
         the Comprehensive  Environmental  Response,  Compensation and Liability
         Act of 1980,  as amended,  the Resource  Conservation  Recovery Act, as
         amended, or any similar state law;

                  (b)  has  entered  into  or  received   any  consent   decree,
         compliance  order  or  administrative  order  issued  pursuant  to  any
         Environmental Law;


                                      -17-


<PAGE>



                  (c) is a party in interest or in default  under any  judgment,
         order, writ, injunction or decree of any final order issued pursuant to
         any Environmental Law;

                  (d) is, to Jacor's  knowledge,  not in substantial  compliance
         with all Environmental  Laws, has, to Jacor's  knowledge,  not obtained
         all Environmental Permits required under Environmental Laws, and is the
         subject of or, to Jacor's  knowledge,  threatened with any Legal Action
         involving a demand for damages or other potential  liability  including
         any Lien with respect to  violations  or breaches of any  Environmental
         Law;

                  (e) has any  knowledge  of any past or  present  Event  which,
         individually  or in the  aggregate,  will  interfere  with  or  prevent
         continued   compliance   with  all   Environmental   Laws,   or  which,
         individually or in the aggregate,  will form the basis of any Claim for
         the  release  or  threatened  release  into  the  environment,  of  any
         Hazardous Material;

                  (f) has any knowledge  that any  Hazardous  Material is or has
         been located at, on, in or under,  or has been released or  transported
         from,  the Jacor Assets or the Jacor Real Property in such manner so as
         to require remediation,  removal or cleanup or other liability or claim
         under, any Environmental Laws; and

                  (g) has any knowledge that any underground  storage tank is or
         has been located at, on, in, or under the Jacor Real Property,  or that
         any friable asbestos  containing  material or Polychlorinated  biphenyl
         containing electrical equipment (other than non-leaking, unitlity-owned
         transformers) are located thereon.

         Notwithstanding  anything to the contrary  contained in this Agreement,
none of the Jacor Parties makes any  representation  or warranty with respect to
its compliance  with  Environmental  Laws or  environmental  matters  generally,
except as specifically set forth in this Section.

         3.16 Trade or Barter.  Section  3.16 of the Jacor  Disclosure  Schedule
sets forth a true, complete and accurate description  (including obligations and
liabilities   remaining   thereunder)  of  all  Jacor  Trade   Agreements   that
individually  involve or may involve,  valued in accordance with GAAP, more than
$500 in  obligations  remaining  thereunder as of the date of this  Agreement in
money, property or services or a remaining term in excess of two months.


                                    ARTICLE 4

             REPRESENTATIONS AND WARRANTIES OF THE AMERICAN PARTIES

         The American Parties,  jointly and severally,  represent and warrant to
the Jacor Parties as follows:

         4.1  Organization  and  Business;   Power  and  Authority;   Effect  of
Transaction.

         (a) Each of the  American  Parties  is a  corporation  duly  organized,
validly  existing and in good  standing  under the laws of its  jurisdiction  of
organization, has all requisite corporate power

                                      -18-


<PAGE>



and  authority  to own or hold under  lease its  properties  and to conduct  its
business as now conducted.

         (b) Each of the American Parties has all requisite  corporate power and
authority  necessary  to enable it to execute  and  deliver,  and to perform its
obligations  under,  this  Agreement and each  Collateral  Document  executed or
required to be executed by it pursuant  hereto or thereto or to  consummate  the
Exchanges  and  the  other  Transactions;   and  the  execution,   delivery  and
performance of this Agreement and each Collateral  Document executed or required
to be  executed  pursuant  hereto or thereto  have been duly  authorized  by all
requisite  corporate or other action on the part of the American  Parties.  This
Agreement  has been duly  executed and  delivered  by the  American  Parties and
constitutes,  and each Collateral  Document  executed or required to be executed
pursuant  hereto  or  thereto  or to  consummate  the  Exchanges  and the  other
Transactions  when executed and delivered by an American Party will  constitute,
legal,  valid and binding  obligations of such American Parties,  enforceable in
accordance with their respective  terms,  except as such  enforceability  may be
limited by  bankruptcy,  moratorium,  insolvency  and similar laws affecting the
rights and remedies of creditors  and  obligations  of debtors  generally and by
general principles of equity.

         (c) Except as set forth in Section  4.1(c) of the  American  Disclosure
Schedule,  neither the  execution  and delivery by the American  Parties of this
Agreement  or any  Collateral  Document  executed  or required to be executed by
either of them pursuant hereto or thereto,  nor the consummation by the American
Parties of the Exchanges and the other  Transactions,  nor  compliance  with the
terms, conditions and provisions hereof or thereof by the American Parties:

                  (i) will conflict with, or result in a breach or violation of,
         or constitute a default  under,  any Organic  Document of either of the
         American  Parties  or any  Applicable  Law on the part of either of the
         American Parties,  or subject to obtaining any required consents,  will
         conflict  with,  or result in a breach or violation of, or constitute a
         default  under,  or  permit  the  acceleration  of  any  obligation  or
         liability in, or but for any requirement of giving of notice or passage
         of time or both  would  constitute  such a  conflict  with,  breach  or
         violation of, or default under, or permit any such acceleration in, any
         American Material Agreement; or

                  (ii) will require either  American Party to make or obtain any
         Governmental    Authorization,    Governmental    Filing   or   Private
         Authorization, except for the FCC Consents, filings, if required, under
         the  Hart-Scott-Rodino Act and Private  Authorizations,  the failure of
         which to be obtained or maintained  would not,  individually  or in the
         aggregate, have an adverse effect on American.

         (d)  Neither  of the  American  Parties  has  any  direct  or  indirect
Subsidiaries  or other  Affiliates  (other than an American  Party) which own or
have any interest in any of the American Stations or any of the American Assets.
American owns all of the outstanding  capital stock of American License,  all of
which stock is duly authorized,  validly issued,  fully paid and  nonassessable.
The American Stations constitute all of the radio stations which either American
Party or any of their Affiliates owns or operates or has the right to acquire or
operate in the Dayton, Ohio radio market.


                                      -19-


<PAGE>



         4.2      Financial and Other Information.

         (a)  American  has  heretofore  furnished  to one of the Jacor  Parties
copies of the unaudited  financial  statements of the American  Stations for the
years ended  December 31, 1995 and 1996 (the "American  Financial  Statements").
The American  Financial  Statements  have been  prepared on a  consistent  basis
throughout  the  periods  covered  thereby,  and fairly  present  the  financial
condition,  results of operations and cash flow of the American Stations,  as of
the respective dates thereof and for the respective periods covered thereby.

         (b) Except solely for the  obligations and liabilities to be assumed by
the one of the Jacor  Parties  pursuant to the  American  Assumable  Agreements,
there will, at the time of Closing,  be no  obligations  or  liabilities  of any
nature,  whether  accrued,  absolute,  contingent or otherwise,  relating to the
American  Parties,  the American  Assets or the American  Stations  which could,
after the Closing, result in any form of transferee liability against any of the
Jacor  Parties  or subject  any of the  American  Assets or any of the  American
Stations to any Lien or otherwise  affect the full, free and unencumbered use of
the American Assets and the ownership and operation of the American  Stations by
one of the Jacor Parties.

         4.3  Material   Statements  and  Omissions;   Absence  of  Events.   No
representation  or  warranty  made by the  American  Parties  contained  in this
Agreement,  the American  Disclosure  Schedule or any  certificate,  document or
other  instrument  furnished or to be furnished by the American Parties pursuant
to the  provisions  hereof  contains or will  contain any untrue  statement of a
material  fact or omits or will omit to state any material fact required to make
any statement  contained herein or therein not misleading.  Neither American nor
American  License is aware of any  impending  or  contemplated  Event that would
cause any of the  representations  and warranties made by it in this Article not
to be true,  correct  and  complete on the date of such Event as if made on that
date.

         4.4 Changes in Condition. Since December 31, 1996, except to the extent
specifically described in Section 4.4 of the American Disclosure Schedule, there
has been no adverse  change in the  American  Assets or the  American  Stations.
There is no Event known to the American Parties which adversely affects,  or (so
far as the American  Parties can now reasonably  foresee) is likely to adversely
affect, the American Assets or the American  Stations,  except (a) to the extent
specifically  described in Section 4.4 of the American  Disclosure  Schedule and
(b) for general business and economic conditions and matters affecting the radio
broadcasting industry generally.

         4.5      Title to Properties; Leases.

         (a) Section 4.5(a) of the American  Disclosure  Schedule lists all Real
Property owned by either American Party (the "American Owned Real Property") and
describes all Leases of Real Property (the  "American  Leases") which is used or
held for use in the operation of the American  Stations (the American Owned Real
Property and the real property subject to the American Leases, being hereinafter
collectively referred to as the "American Real Property"). American has (and one
of the Jacor Parties will upon Closing obtain) good and marketable  title to the
American Owned Real Property and valid and subsisting leasehold interests in the
American Leases, in each case free and clear of all Liens,  except (i) Permitted
Liens and (ii) Liens set forth on Section 4.5(a) of the

                                      -20-


<PAGE>



American  Disclosure  Schedule (which Liens shall be released prior to Closing).
American has full legal and practical  access to all of the American  Owned Real
Property, and all easements,  rights of way, and real property licenses relating
thereto have been properly recorded in the appropriate public recording offices,
except to the  extent,  if any,  set  forth in  Section  4.5(a) of the  American
Disclosure  Schedule.  The American Owned Real Property,  together with the real
property that is subject to the American Leases, includes all the real property,
easements, rights of way, and other real property interests necessary to conduct
the business and operations of the American  Stations as they are now conducted.
None of the buildings,  structures,  improvements or fixtures constructed on any
American  Owned Real  Property and real property that is subject to the American
Leases,  including without  limitation all towers, guy wires and guy anchors and
ground radials,  encroach upon adjoining real property,  and all such buildings,
structures, improvements and fixtures, are constructed and are operated and used
in  conformance in all material  respects with all "set back" lines,  easements,
covenants,  restrictions and all applicable building,  fire, zoning,  health and
safety laws and codes, except to the extent, if any, set forth in Section 4.5(a)
of the American Disclosure Schedule. No utility lines serving such real property
pass over the lands of a third party except  where  appropriate  easements  have
been  obtained  or  except  as set  forth  in  Section  4.5(a)  of the  American
Disclosure Schedule. All buildings,  structures, towers, antennae,  improvements
and fixtures  comprising  the American Owned Real Property or real property that
is subject to the American  Leases are in good and  technically  sound operating
condition,  have no latent  structural  mechanical  or other defects of material
significance,  are  reasonably  suited for the purposes for which they are being
used and each has  adequate  rights of ingress and egress,  utility  service for
water and sewer,  telephone,  electric and/or gas, and sanitary  service for the
conduct of the business  and  operations  of the American  Stations as presently
conducted,  except to the  extent,  if any,  set forth in Section  4.5(a) of the
American Disclosure Schedule.  There is no pending or, to American's  knowledge,
threatened condemnation or other legal proceeding or action of any kind relating
to such real property and/or title thereto.

         Except  as  otherwise  set  forth in  Section  4.5(a)  of the  American
Disclosure Schedule,  each American Lease included in the American Real Property
has been duly authorized,  executed and delivered by American and, to American's
knowledge, each of the other parties thereto, and is a legally valid and binding
obligation of American, and, to American's knowledge,  each of the other parties
thereto,  enforceable in accordance with its terms. American enjoys peaceful and
undisturbed  possession under all American Leases pursuant to which it will hold
any American Real Property.  All of the American Leases are valid and subsisting
and in full force and effect; neither of the American Parties nor, to American's
knowledge, any other party thereto is in default in the performance,  observance
or  fulfillment  of any  obligation,  covenant  or  condition  contained  in any
American Lease.

         (b) Section 4.5(b) of the American Disclosure Schedule contains a true,
accurate and complete  description  of all material  items of American  Personal
Property.  American  owns  and has  good  and  merchantable  title to all of the
American  Personal  Property  relating to the American  Stations (the  "American
Personal  Property"),  in each  case,  free and clear of all  Liens,  except (i)
Permitted  Liens  and (ii)  Liens set forth on  Section  4.5(b) of the  American
Disclosure Schedule (which Liens shall be released prior to Closing).  Except as
set forth in Section  4.5(b) of the  American  Disclosure  Schedule,  all of the
American  Personal  Property is in a state of good repair and maintenance and is
in good operating condition, normal wear and tear excepted, has been maintained

                                      -21-


<PAGE>



in a manner  consistent with generally  accepted  standards of good  engineering
practice  and  currently  permits  the  American  Stations  to  be  operated  in
accordance  with the terms and  conditions  of the American FCC Licenses and all
Applicable Laws.

         4.6 Compliance with Private Authorizations. Section 4.6 of the American
Disclosure   Schedule  sets  forth  a  true,  accurate  and  complete  list  and
description of each American Private  Authorization which,  individually or when
taken together with other substantially similar American Private Authorizations,
is material to the American Assets or the American Stations, all of which are in
full force and effect.  There does not exist any breach or  violation  of, or in
default in the  performance,  observance or fulfillment of, any American Private
Authorization,  and no Event exists or has occurred,  which constitutes,  or but
for any  requirement  of  giving  of notice  or  passage  of time or both  would
constitute,  such a breach,  violation or default,  under any  American  Private
Authorization,  except as set forth in Section  4.6 of the  American  Disclosure
Schedule.  No such  Private  Authorization  is the subject of any pending or, to
American's knowledge, threatened attack, revocation or termination.

         4.7 Compliance with Governmental Authorizations and Applicable Law.

         (a)  Section  4.7(a) of the  American  Disclosure  Schedule  contains a
description of:

                  (i) all Claims pending or, to American's knowledge, threatened
         against either  American Party with respect to the business,  operation
         or  ownership  of any of the  American  Assets  or any of the  American
         Stations,  including without limitation all Claims which,  individually
         or in the aggregate,  are reasonably likely to result in the revocation
         or termination of any of the American FCC Licenses or the imposition of
         any  restriction  of  such a  nature  as  would  adversely  affect  the
         ownership or operations of any of the American Stations; in particular,
         but without  limiting the  generality  of the  foregoing,  there are no
         Claims pending or, to American's  knowledge,  threatened (x) before the
         FCC  relating to the  business  or  operations  of any of the  American
         Stations other than Claims which affect the radio broadcasting industry
         generally,  or (y) before any  Authority  involving  charges of illegal
         discrimination  by any of the  American  Stations  under any federal or
         state employment Laws; and

                  (ii)  each  Governmental   Authorization   (including  without
         limitation all FCC Licenses)  required under Applicable Laws to own and
         operate the American Stations, as currently conducted or proposed to be
         conducted  on or prior to the  Closing  Date,  all of which are in full
         force and effect (the "American Governmental Authorizations").

Attached to the  American  Disclosure  Schedule  are true,  correct and complete
copies of the American Governmental Authorizations (including without limitation
any and all amendments and other modifications thereto).

         (b) American License is the authorized legal holder of the FCC Licenses
listed in Section 4.7(a) of the American Disclosure  Schedule,  none of which is
subject to any  restriction  or  condition  which would limit in any respect the
operations  of the American  Stations as currently  conducted.  The American FCC
Licenses  are valid and in good  standing,  are in full force and effect and are
not

                                      -22-


<PAGE>



impaired in any respect by any act or omission of either  American  Party or its
officers, directors, employees or agents. The American Stations are operating in
accordance with the American FCC Licenses,  all underlying  construction permits
and the FCA.  Except as disclosed in Section  4.7(b) of the American  Disclosure
Schedule,  no  application,  action or  proceeding is pending for the renewal or
modification of any American FCC Licenses and, to American's knowledge, there is
not as of the date of this Agreement issued or outstanding any  investigation or
complaint  against  either  American  Party  at the FCC  relating  to any of the
American  Stations.  Except as  disclosed  in  Section  4.7(b)  of the  American
Disclosure  Schedule,  as of the date of this Agreement,  there is no proceeding
pending at, or outstanding  notice of violation from, the FCC relating to any of
the American Stations.  All fees payable to Authorities pursuant to the American
Station FCC Licenses,  including FCC annual  regulatory fees, have been paid and
no event has occurred which,  individually or in the aggregate,  and without the
giving  of notice or the lapse of time or both,  would  constitute  grounds  for
revocation  thereof or would have an adverse  effect on either  American  Party.
Except (i) as set forth in Section  4.7(b) of the American  Disclosure  Schedule
and (ii) for such  reports,  forms and  statements  the failure of which to file
would not,  individually  or in the  aggregate,  have an  adverse  effect on the
American  Stations,  all reports,  forms and statements  required to be filed by
either  American  Party with the FCC with respect to the American  Stations have
been filed and are true,  complete and accurate in all  respects.  To American's
knowledge,  under the FCA,  there are no facts that would  disqualify  it as the
transferee of the control of the Jacor Stations.

         The American  Governmental  Authorizations  comprise  all  Governmental
Authorizations  which are necessary for the lawful ownership or operation of the
American  Assets or the lawful conduct of the business of the American  Stations
as now conducted, except for Governmental  Authorizations,  the failure of which
to obtain and maintain,  would not,  individually or in the aggregate,  have any
adverse  effect  on the  American  Assets  or  American  Stations.  No  American
Governmental  Authorization  is the  subject of any  pending  or, to  American's
knowledge,  threatened  challenge  or  proceeding  to  revoke or  terminate  any
American  Governmental  Authorization.  To American's  knowledge,  except as set
forth in Section  4.7(b) of the American  Disclosure  Schedule,  American has no
reason to believe  that any  American  Governmental  Authorization  would not be
renewed  in the  name of  American  License  by the  granting  Authority  in the
ordinary course.

         4.8 Intangible Assets.  Section 4.8 of the American Disclosure Schedule
sets forth a true, accurate and complete  description of all material Intangible
Assets  held  or  used  by  either  American  Party  (other  than  the  American
Governmental Authorizations and the American Private Authorizations) relating to
the  ownership  and  operation  of the  American  Assets or the  conduct  of the
business of the American Stations (the "American Intangible Assets"),  including
without  limitation the nature of one of the American  Party's  interest in each
and the  extent to which the same have been duly  registered  in the  offices as
indicated  therein.  One of the American  Parties owns or possesses or otherwise
has the right to use the American Intangible Assets.

         4.9 Related Transactions.  Neither American Party is a party or subject
to any  Contractual  Obligation  relating to the  ownership and operation of the
American Assets or the conduct of the business of the American  Stations between
either  American  Party  and  any  of  their  respective  officers,   directors,
stockholders or employees or, to the knowledge of American, any Affiliate of any
thereof,  including without limitation any Contractual  Obligation providing for
the  furnishing of services to or by,  providing  for rental of property,  real,
personal or mixed, to or from, or providing

                                      -23-


<PAGE>



for the lending or borrowing of money to or from or otherwise requiring payments
to or from,  any such  Person,  other than (i) the  American  Employee  Plans or
American Material Agreements constituting employment agreements,  (ii) Contracts
between  either  American  Party and its officers,  directors,  stockholders  or
employees  which will not be part of the  American  Assets  and will  constitute
American  Excluded  Assets  and  American  Nonassumed  Obligations,  and (iii) a
management agreement between American and American License.

         4.10 Tax Matters.  Each of the  American  Parties has in respect of the
American  Assets and the American  Stations filed all material Tax Returns which
are  required to be filed,  and has paid,  or made  adequate  provision  for the
payment of, all Taxes which have or may become due and payable  pursuant to said
Tax Returns and all other governmental  charges and assessments received to date
other than those Taxes being contested in good faith.  There are no unpaid Taxes
which are due and  payable,  or  alleged  to be due and  payable  by any  Taxing
Authority,  the  non-payment  of which  is or could  become a Lien on any of the
American  Assets or any of the  American  Stations  or result in any  transferee
liability against any of the Jacor Parties. All Taxes in respect of the American
Assets and the American  Stations which either American Party is required by law
to withhold and collect have, to  American's  knowledge,  been duly withheld and
collected,  and  have  been  paid  over,  in a  timely  manner,  to  the  proper
Authorities to the extent due and payable.

         4.11     Employee Benefit Plans; American Station Employees..

         (a) Section  4.11(a) of the  American  Disclosure  Schedule  contains a
true,  accurate and complete list (and brief description) as of the date of this
Agreement of all employee  benefit  plans which are  applicable  to the American
Station Employees ("American Employee Plans"). Neither either American Party nor
its  Affiliates  maintains  any other  employee  benefit  plan,  as that term is
defined in Section 3 of ERISA, applicable to the American Station Employees.

         (b) Section  4.11(b) of the  American  Disclosure  Schedule  contains a
true,  accurate and  complete  list of all persons  employed by either  American
Party in the ownership or operation of any of the American Assets or the conduct
of the  business  of  any  of  the  American  Stations  (the  "American  Station
Employees"),  together  with each  such  employee's  date of hire,  the title or
capacity  in which  such  person is  employed,  and a  description  of  material
compensation arrangements (other than any American Employee Plans).

         (c) Neither  American  Party has received any notice that,  and neither
American Party is aware of, any American Station Employee who shall or is likely
to terminate his or her employment  relationship with the American Stations upon
the  execution of this  Agreement  or after the Closing,  except as set forth in
Section 4.11(c) of the American Disclosure Schedule.

         (d) Except as described in Section  4.11(d) of the American  Disclosure
Schedule,  with  respect  to the  American  Stations,  (i) none of the  American
Station  Employees is now or, to American's  knowledge,  has been represented by
any  labor  union or other  employee  collective  bargaining  organization,  and
neither  American Party is or has been a party to any labor or other  collective
bargaining  agreement with respect to any American Station Employee,  (ii) there
are no pending grievances, disputes or controversies with any union or any other
employee or collective bargaining  organization of such employees, or threats of
strikes, work stoppages or slowdowns or

                                      -24-


<PAGE>



any  pending  demands  for  collective  bargaining  by any  such  union or other
organization,  and (iii) neither American Party nor any of such employees is now
or, to  American's  knowledge,  has been subject to,  involved in or  threatened
with,  any union  elections,  petitions  therefore  or other  organizational  or
recruiting  activities,  in each  case  with  respect  to any  American  Station
Employee.

         (e) Except as disclosed in Section  4.11(e) of the American  Disclosure
Schedule,  each of the American  Parties have complied in all material  respects
with  all  laws  relating  to  the  employment  of  labor,  including,   without
limitation,   ERISA  and  those  laws  relating  to  wages,  hours,   collective
bargaining,  unemployment  insurance,  workers'  compensation,  equal employment
opportunity and payment and withholding of taxes.

         4.12  Material  Agreements.  Listed  on  Section  4.12 of the  American
Disclosure  Schedule are all Material  Agreements  relating to the  ownership or
operation of the American  Assets or the conduct of the business of the American
Stations or to which either American Party is a party or to which it is bound or
to which any of the American Assets is or will, as of such time, be subject (the
"American Material  Agreements").  True, accurate and complete copies of each of
such  Material  Agreements  have been made  available  by American to one of the
Jacor  Parties  and  American  has  provided  one  of  the  Jacor  Parties  with
photocopies  of all  such  Material  Agreements  requested  by one of the  Jacor
Parties (or true, accurate and complete descriptions thereof have been set forth
in  Section  4.12 of the  American  Disclosure  Schedule,  if any such  Material
Agreements are oral). All of the American  Material  Agreements  relating to the
American Stations are valid, binding and legally enforceable  obligations of one
of the American Parties, and, in all cases, to American's  knowledge,  all other
parties  thereto,  and one of the  American  Parties  is  validly  and  lawfully
conducting  the business of the American  Stations and owning and  operating the
American  Assets under each of the  American  Material  Agreements.  Each of the
American  Parties has duly complied with all of the terms and conditions of each
American Material  Agreement and neither has done or performed,  or failed to do
or perform  (and,  to  American's  knowledge,  there is no pending or threatened
Claim that either  American  Party has not so  complied,  done and  performed or
failed to do and perform) any act which would  invalidate or provide grounds for
the other party thereto to terminate (with or without notice, passage of time or
both) any of the American Material  Agreements or impair the rights or benefits,
or increase the costs, of either  American Party under any of American  Material
Agreement.   Neither  American  Party  has  expressly  granted  any  waivers  or
forbearance under any American Material Agreement and, to American's  knowledge,
no  third  party  is in  material  default  in  the  performance  of  any of its
obligations under any American Material Agreement.  Except for those consents or
approvals  listed  in  Section  4.12 of the  American  Disclosure  Schedule,  no
consents or approvals of any third party are necessary to permit the  assignment
by the American Parties of the American Material  Agreements to one of the Jacor
Parties and such  assignment will not affect the validity or  enforceability  of
any American Material  Agreement or cause any material change in the substantive
terms of any of them.

         4.13 Ordinary Course of Business.  Each of the American  Parties,  from
the later of December 31, 1996 or the  acquisition  of the  applicable  American
Assets and American Stations to the date hereof,  except (i) as may be described
on Section 4.13 of the American Disclosure Schedule,  or (ii) as may be required
or expressly  contemplated by the terms of this  Agreement,  with respect to the
American  Assets and the  American  Stations,  has  operated its business in the
normal,

                                      -25-


<PAGE>



usual and  customary  manner in the  ordinary  and regular  course of  business,
consistent with prior practice and

                  (a) has not sold or  otherwise  disposed of or  contracted  to
         sell or otherwise dispose of any of the American Assets;

                  (b) other than in the ordinary course of business,  consistent
         with prior practice:

                           (i) has not made or committed  to make any  additions
                  to its  property or any  purchases  of  equipment,  except for
                  normal maintenance and replacements; and

                           (ii) has not increased the compensation payable or to
                  become  payable  to any of its  employees  other  than  in the
                  ordinary course of business or otherwise altered,  modified or
                  changed the terms of their employment;

                  (c) has not suffered any material damage,  destruction or loss
         (whether or not covered by insurance) or any  acquisition  or taking of
         property by any Authority; and

                  (d) has not experienced any work stoppage.

         4.14  Broker or Finder.  No Person  assisted  in or  brought  about the
negotiation of this Agreement,  the Exchanges or the subject matter of any other
Transaction  in the  capacity  of  broker,  agent or  finder  or in any  similar
capacity on behalf of either American Party.

         4.15 Environmental Matters.  Except as set forth in Section 4.15 of the
American Disclosure Schedule, solely with respect to the American Assets and the
American Real Property, neither American Party:

                  (a) has been notified in writing that it is potentially liable
         under,  has  received  any  written  request for  information  or other
         correspondence  concerning its potential  liability with respect to any
         site or facility under, or is a "potentially  responsible party" under,
         the Comprehensive  Environmental  Response,  Compensation and Liability
         Act of 1980,  as amended,  the Resource  Conservation  Recovery Act, as
         amended, or any similar state law;

                  (b)  has  entered  into  or  received   any  consent   decree,
         compliance  order  or  administrative  order  issued  pursuant  to  any
         Environmental Law;

                  (c) is a party in interest or in default  under any  judgment,
         order, writ, injunction or decree of any final order issued pursuant to
         any Environmental Law;

                  (d) is, to American's knowledge, not in substantial compliance
         with all Environmental Laws, has, to American's knowledge, not obtained
         all Environmental Permits required under Environmental Laws, and is the
         subject  of or,  to  American's  knowledge,  threatened  with any Legal
         Action  involving  a demand for  damages or other  potential  liability
         including  any Lien with  respect  to  violations  or  breaches  of any
         Environmental Law;


                                      -26-


<PAGE>



                  (e) has any  knowledge  of any past or  present  Event  which,
         individually  or in the  aggregate,  will  interfere  with  or  prevent
         continued   compliance   with  all   Environmental   Laws,   or  which,
         individually or in the aggregate,  will form the basis of any Claim for
         the  release  or  threatened  release  into  the  environment,  of  any
         Hazardous Material;

                  (f) has any knowledge  that any  Hazardous  Material is or has
         been located at, on, in or under,  or has been released or  transported
         from, the American  Assets or the American Real Property in such manner
         so as to require remediation,  removal or cleanup or other liability or
         claim under, any Environmental Laws; and

                  (g) has any knowledge that any underground  storage tank is or
         has been located at, on, in, or under the American  Real  Property,  or
         that  any  friable  asbestos  containing  material  or  Polychlorinated
         biphenyl  containing  electrical  equipment  (other  than  non-leaking,
         unitlity-owned transformers) are located thereon.

         Notwithstanding  anything to the contrary  contained in this Agreement,
neither American Party make any  representation  or warranty with respect to its
compliance with Environmental Laws or environmental matters generally, except as
specifically set forth in this Section.

         4.16 Trade or Barter.  Section 4.16 of the American Disclosure Schedule
sets forth a true, complete and accurate description  (including obligations and
liabilities   remaining  thereunder)  of  all  American  Trade  Agreements  that
individually  involve or may involve,  valued in accordance with GAAP, more than
$500 in  obligations  remaining  thereunder as of the date of this  Agreement in
money, property or services or a remaining term in excess of two months.


                                    ARTICLE 5

                                    COVENANTS

         5.1      Access to Information; Confidentiality.

         (a) Each party  shall  afford to the other  party and its  accountants,
counsel,  financial advisors and other  representatives (the  "Representatives")
full access  during normal  business  hours  throughout  the period prior to the
Closing Date to all of its (and its Subsidiaries') properties, books, contracts,
commitments and records  (including  without limitation Tax Returns) relating to
the Assets and the Stations and, during such period, shall furnish promptly upon
request (i) a copy of each report, schedule and other document filed or received
by any of them pursuant to the  requirements  of any  Applicable  Law (including
without  limitation the FCA) or filed by it or any of its Subsidiaries  with any
Authority in connection with either of the Exchanges and the other  Transactions
or any other report,  schedule or documents  which may have a material effect on
the  businesses,   operations,   properties,  prospects,  personnel,  condition,
(financial or other),  or results of operations  of their  respective  Assets or
Stations,  (ii) to the extent not provided for pursuant to the preceding clause,
all  financial  records,  ledgers,  work papers and other  sources of  financial
information  possessed or controlled  by (x) any Jacor Party or its  accountants
deemed by American or its Representatives necessary or useful for the purpose of
performing an audit of the business of the Jacor Stations and

                                      -27-


<PAGE>



certifying  financial  statements  and  financial  information  pursuant  to the
provisions of Section 6.2(d),  and (y) American or its accountants deemed by any
Jacor  Party or its  Representatives  necessary  or useful  for the  purpose  of
performing  an audit of the  business of the American  Stations  and  certifying
financial  statements  and financial  information  pursuant to the provisions of
Section 6.3(d), and (iii) such other information concerning any of the foregoing
as  American  or any  Jacor  Party  shall  reasonably  request.  All  non-public
information  furnished  pursuant to the provisions of this Agreement,  including
without  limitation  this  Section,  will be kept  confidential  and shall  not,
without the prior written consent of the party disclosing such  information,  be
disclosed by the other party in any manner whatsoever, in whole or in part, and,
except as required by Applicable Law (including without limitation in connection
with any  registration  statement  or similar  document  filed  pursuant  to any
federal or state securities Law) shall not be used for any purposes,  other than
in connection with the Exchanges and the other Transactions. Except as otherwise
herein  provided,  each party agrees to reveal such information only to those of
its  Representatives  or other Persons who need to know such the information for
the  purpose  of  evaluating  and  consummating  the  Exchanges  and  the  other
Transactions  who are informed of the confidential  nature of such  information.
From and after the  Closing,  each of the parties  shall not,  without the prior
written consent of the other party,  disclose any  information  remaining in its
possession  with respect to the Assets and  Stations  conveyed by it pursuant to
the Exchanges and no such information shall be used for any purposes, other than
in connection  with the Exchanges  and the other  Transactions  or to the extent
required by Applicable Law.

         (b)  Notwithstanding  the provisions of Section 5.1(a),  each party may
disclose  such  information  as it may  reasonably  determine to be necessary in
connection with seeking all Governmental and Private  Authorizations  or that is
required by Applicable Law to be disclosed,  including without limitation in any
registration  statement or other document required to be filed under any federal
or state  securities  Law. In the event that this  Agreement  is  terminated  in
accordance  with its terms,  each party shall promptly  redeliver all non-public
written  material  provided  pursuant to this Section or any other  provision of
this  Agreement or  otherwise in  connection  with the  Exchanges  and the other
Transactions and shall not retain any copies, extracts or other reproductions in
whole or in part of such  written  material  other than one copy  thereof  which
shall be delivered to independent counsel for such party.

         (c) No investigation pursuant to this Section or otherwise shall affect
any  representation  or  warranty  in this  Agreement  of  either  party  or any
condition to the obligations of the parties hereto.

         5.2      Agreement to Cooperate.

         (a) Each of the parties  hereto shall use reasonable  business  efforts
(x) to take,  or cause to be taken,  all actions and to do, or cause to be done,
all things necessary, proper or advisable under Applicable Law to consummate the
Exchanges  and make  effective the other  Transactions,  and (y) to refrain from
taking, or cause to be taken, any action and to refrain from doing or causing to
be done,  any  thing  which  could  impede  or impair  the  consummation  of the
Exchanges or the making effective of the other Transactions,  including,  in all
cases,  without limitation using its reasonable  business efforts (i) to prepare
and file with the applicable  Authorities  as promptly as practicable  after the
execution of this Agreement all requisite  applications and amendments  thereto,
together  with  related  information,  data and  exhibits,  necessary to request
issuance of orders approving the

                                      -28-


<PAGE>



Exchanges and the other Transactions by all such applicable Authorities, each of
which must be obtained or become Final Orders in order to satisfy the  condition
applicable  to it set forth in Section  6.1(c),  (ii) to obtain all necessary or
appropriate  waivers,  consents  and  approvals,  (iii) to effect all  necessary
registrations,   filings  and  submissions  (including  without  limitation,  if
required, filings within twenty (20) business days of the date of this Agreement
under the  Hart-Scott-Rodino  Act and all  filings  necessary  for the  American
Parties  and the Jacor  Parties to own and operate  the Jacor  Stations  and the
American Stations, respectively), (iv) to lift any injunction or other legal bar
to the Exchanges or any of the other Transactions (and, in such case, to proceed
with the Exchanges and the other Transactions as expeditiously as possible), and
(v) to obtain  the  satisfaction  of the  conditions  specified  in  Article  6,
including without limitation the truth and correctness as of the Closing Date as
if made on and as of the Closing Date of the  representations  and warranties of
such party and the  performance  and  satisfaction as of the Closing Date of all
agreements  and  conditions to be performed or satisfied by such party.  Without
limiting the generality of the foregoing, the parties acknowledge and agree that
the assignment of the FCC Licenses as  contemplated by this Agreement is subject
to the prior  consent and  approval of the FCC.  Within ten (10)  business  days
following the execution of this  Agreement,  the American  Parties and the Jacor
Parties shall file with the FCC appropriate  applications for FCC Consents.  The
parties shall  prosecute said  applications  with all  reasonable  diligence and
otherwise use reasonable business efforts to obtain the grant of FCC Consents to
such applications as expeditiously as practicable.  If the FCC Consents,  or any
of them,  imposes any  condition  on either party  hereto,  such party shall use
reasonable  business  efforts to comply with such  condition  unless  compliance
would have a material  adverse  effect upon it. If  reconsideration  or judicial
review is sought with respect to any FCC Consent,  the American  Parties and the
Jacor  Parties shall oppose such efforts to obtain  reconsideration  or judicial
review (but nothing  herein  shall be  construed  to limit any party's  right to
terminate   this   Agreement   pursuant  to  the  provisions  of  Section  7.1).
Notwithstanding  anything in this  Agreement to the contrary,  the Exchanges are
expressly  conditioned  upon the grant of the Final Order as to the FCC Consents
for the  assignment  of the FCC Licenses for the Stations  without any condition
which  would have a  materially  adverse  effect upon the party  acquiring  such
Stations.

         (b) The parties shall  cooperate with one another in the preparation of
all Returns, questionnaires, applications or other documents regarding any Taxes
or  transfer,  recording,  registration  or other fees which  become  payable in
connection with the Exchanges and the other Transactions that are required to be
filed on or before the Closing Date.

         (c) Each of the Jacor  Parties shall  cooperate and use its  reasonable
business  efforts to cause its independent  accountants to reasonably  cooperate
with American,  and at American's  expense,  in order to enable American to have
the Jacor Parties or the Jacor  Parties' or American's  independent  accountants
prepare audited financial statements for the Jacor Stations described in Section
6.2(d).  The Jacor Parties represent and warrant that such financial  statements
will have been  prepared in accordance  with GAAP applied on a basis  consistent
with past practices and will present fairly the financial  condition and results
of operation of the Jacor  Stations.  Without  limiting  the  generality  of the
foregoing, the Jacor Parties agree that they will (i) consent to the use of such
audited  financial  statements in any  registration  statement or other document
filed by  American  or any of its  Affiliates  under the  Securities  Act or the
Exchange Act and (ii) execute and deliver, and cause its officers to execute and
deliver, such "representation" letters as are customarily delivered

                                      -29-


<PAGE>



in connection  with audits and as American's or the Jacor  Parties'  independent
accountants may reasonably request under the circumstances.

         American  shall  cooperate and use its reasonable  business  efforts to
cause  its  independent  accountants  to  reasonably  cooperate  with the  Jacor
Parties, and at the Jacor Parties' expense, in order to enable the Jacor Parties
to have American and  American's or the Jacor Parties'  independent  accountants
prepare  audited and unaudited  financial  statements for the American  Stations
described  in  Section  6.3(d).  American  represents  and  warrants  that  such
financial  statements will have been prepared in accordance with GAAP applied on
a basis  consistent  with past  practices and will present  fairly the financial
condition and results of operation of the American  Stations.  Without  limiting
the generality of the foregoing, American agrees that it will (i) consent to the
use of such financial statements in any registration statement or other document
filed by the Jacor Parties or any of their  Affiliates  under the Securities Act
or the  Exchange  Act and (ii)  execute and  deliver,  and cause its officers to
execute and deliver, such "representation"  letters as are customarily delivered
in connection  with audits and as the Jacor  Parties' or American's  independent
accountants may reasonably request under the circumstances.

         (d) The  applicable  parties  acknowledge  and agree  that  they  will,
subject to the expiration or earlier  termination of the  Hart-Scott-Rodino  Act
waiting period,  execute and deliver time brokerage agreements pursuant to which
(i)  American  would time  broker the  Citicasters  Stations  (the  "Citicasters
Stations TBA"), (ii) American would time broker the Regent Stations (the "Regent
Stations  TBA"),  (iii)  Citicasters  would  time  broker  each of the  American
Citicasters Stations (the "American  Citicasters Stations TBA"), and (iv) Regent
Broadcasting  would  time  broker  each of the  American  Regent  Stations  (the
"American  Regent  Stations  TBA").  Anything in this  Agreement to the contrary
notwithstanding,  including without limitation any provision of Articles 3 and 4
and  Sections  6.2 and 6.3,  (i) the  Jacor  Parties  shall not be liable in any
respect to the extent (A) any of their  representations and warranties contained
in Article 3 are not true and correct in any  material  respect on and as of the
Closing Date or (B) any of their  covenants  contained in Article 5 are breached
in any  material  respect on and as of the  Closing  Date,  in any such case due
solely to the operation of American  under the  Citicasters  Stations TBA or the
Regent  Stations  TBA,  (ii) the  American  Parties  shall  not be liable in any
respect to the extent (A) any of their  representations and warranties contained
in Article 4 are not true and correct in any  material  respect on and as of the
Closing Date or (B) any of their  covenants  contained in Article 5 are breached
in any  material  respect on and as of the  Closing  Date,  in any such case due
solely to the  operation of the  Citicasters  or Regent  Broadcasting  under the
American  Citicasters  Stations  TBA  and  the  American  Regent  Stations  TBA,
respectively,  (iii) the  conditions  set forth in Section  6.3(f)  shall not be
deemed to be not  satisfied  as a result  of any  action  or  failure  to act of
American  pursuant to the  provisions  of the  Citicasters  Stations  TBA or the
Regent  Stations TBA, (iv) the  conditions set forth in Section 6.2(f) shall not
be deemed to be not  satisfied  as a result of any  action or  failure to act of
Citicasters  or Regent  Broadcasting  pursuant to the provisions of the American
Citicasters Stations TBA and the American Regent Stations TBA, respectively, and
(v) the  certificates  to be  delivered  to the  American  Parties and the Jacor
Parties  pursuant to the provisions of Section 6.2(c) and 6.3(c),  respectively,
shall not be required to address any of such representations and warranties that
are not true and correct in any material  respect or any of such  covenants that
are  breached in any  material  respect on and as of the Closing Date due to the
operation of the other party under the TBA Agreements.


                                      -30-


<PAGE>



         (e) Within thirty (30) days after the execution of this Agreement,  (i)
American  shall,  at its expense,  (x)  commission a qualified  title company to
prepare and provide to the Jacor Parties a preliminary title report with respect
to the American Real  Property (the  "American  Preliminary  Title  Report") and
promptly  provide a copy of the American  Preliminary  Title Report to the Jacor
Parties,  together with complete  copies of all documents  relating to the title
exceptions  referred  to in  the  American  Preliminary  Title  Report  and  (y)
commission a qualified surveyor (licensed in Ohio) to prepare and provide to the
Jacor Parties hereto a survey ("American  Survey") of the American Real Property
depicting the location of all title exceptions and (ii) the Jacor Parties shall,
at their  expense,  (x)  commission  a  qualified  title  company to prepare and
provide to the American  Parties a preliminary  title report with respect to the
Jacor Real Property (the "Jacor  Preliminary Title Report") and promptly provide
a copy of the Jacor Preliminary Title Report to American, together with complete
copies of all  documents  relating  to the title  exceptions  referred to in the
Jacor Preliminary Title Report and (y) commission a qualified surveyor (licensed
in Missouri) to prepare and provide to American hereto a survey ("Jacor Survey")
of the Jacor Real Property depicting the location of all title exceptions.

         The  Jacor  Parties  shall  have the right to  disapprove  of any title
exceptions  or survey  exceptions  (whether  nor not  disclosed  on the American
Preliminary  Title Report) which in their  reasonable  business  judgment have a
material  adverse  impact  on the title to the  American  Real  Property  or its
intended use and shall notify American of any such  disapproval  within ten (10)
business  days after its receipt of both the American  Preliminary  Title Report
and the  American  Survey].  All  title  exceptions  set  forth in the  American
Preliminary  Title  Report  and  any  supplemental  reports  or  updates  to the
Preliminary  Title Report and not disapproved  within the time periods  provided
herein shall  constitute  "American  Permitted Title  Exceptions".  Prior to the
Closing,  American  shall,  at its  expense,  remove or cause to be removed  all
disapproved  exceptions  relating  to the  American  Real  Property  (the "Jacor
Disapproved  Matters") or, in the alternative,  obtain title insurance in a form
reasonably satisfactory to the Jacor Parties insuring against the effect of such
Jacor  Disapproved  Matters;  provided,  however,  that  American  shall  not be
obligated  to spend more than  $150,000  in its attempt to remove or insure over
any such Jacor  Disapproved  Matters  (other than monetary  Liens which shall be
required to be removed regardless of the amount thereof).  American shall notify
the Jacor  Parties  within  ten (10) days  after  receipt of the notice of Jacor
Disapproved Matters whether it intends to remove the same. If American is unable
to remove or endorse  over any such Jacor  Disapproved  Matters,  or if American
exercises  its right not to remove one or more Jacor  Disapproved  Matters,  the
Jacor  Parties may elect (i) to terminate  this  Agreement or (ii) to waive such
Jacor Disapproved  Matters (such Jacor Disapproved  Matters shall then be deemed
to be American  Permitted  Title  Exceptions),  in which event the Jacor Parties
shall  receive  a  credit  at the  Closing  in the  amount  (up to the  positive
difference, if any, between (x) $150,000 and (y) the amount theretofore expended
by American  pursuant  to the  provisions  of this  Section  5.2(e))  reasonably
necessary  to remove or endorse  over the Jacor  Disapproved  Matters or, if the
Jacor  Disapproved  Matters cannot be removed or endorsed over, to compensate it
for the reduction in value of such American  Real Property  resulting  from such
Jacor Disapproved Matters.

         American shall have the right to disapprove of any title  exceptions or
survey  exceptions  (whether nor not  disclosed on the Jacor  Preliminary  Title
Report) which in its reasonable business judgment have a material adverse impact
on the title to the Jacor Real Property or its intended use and shall notify the
Jacor Parties of any such disapproval within ten (10) business days after its

                                      -31-


<PAGE>



receipt of both the Jacor  Preliminary  Title Report and the Jacor  Survey.  All
title  exceptions  set  forth in the  Jacor  Preliminary  Title  Report  and any
supplemental  reports or updates to the Jacor  Preliminary  Title Report and not
disapproved  within the time periods  provided  herein shall  constitute  "Jacor
Permitted Title Exceptions".  Prior to the Closing,  the Jacor Parties shall, at
their expense, remove or cause to be removed all disapproved exceptions relating
to the Jacor Real  Property  (the  "American  Disapproved  Matters")  or, in the
alternative,  obtain  title  insurance  in a  form  reasonably  satisfactory  to
American  insuring  against  the effect of such  American  Disapproved  Matters;
provided,  however,  that the Jacor Parties shall not be obligated to spend more
than  $150,000  in its  attempt  to  remove  or  insure  over any such  American
Disapproved  Matters  (other than  monetary  Liens which shall be required to be
removed  regardless  of the amount  thereof).  The Jacor  Parties  shall  notify
American  within  ten  (10)  days  after  receipt  of  the  notice  of  American
Disapproved Matters whether they intend to remove the same. If the Jacor Parties
are unable to remove or endorse over any such American  Disapproved  Matters, or
if the Jacor  Parties  exercise  their right not to remove one or more  American
Disapproved Matters,  American may elect (i) to terminate this Agreement or (ii)
to waive such American  Disapproved  Matters (such American  Disapproved Matters
shall then be deemed to be Jacor  Permitted  Title  Exceptions),  in which event
American shall receive a credit at the Closing in the amount (up to the positive
difference, if any, between (x) $150,000 and (y) the amount theretofore expended
by the  Jacor  Parties  pursuant  to the  provisions  of  this  Section  5.2(e))
reasonably  necessary to remove or endorse over the American Disapproved Matters
or, if the American  Disapproved  Matters cannot be removed or endorsed over, to
compensate it for the  reduction in value of such Jacor Real Property  resulting
from such American Disapproved Matters.

         (f) Within thirty (30) days after the execution of this Agreement, each
of  American  and the Jacor  Parties  may,  at its sole  expense,  commission  a
qualified engineering firm to conduct a Phase I environmental study of the Jacor
Real Property or the American  Real  Property,  respectively  (the study done by
American on such Jacor Real Property is hereinafter called the "American Study";
and the  study  done by the Jacor  Parties  on the  American  Real  Property  is
hereinafter  called the "Jacor Study").  If American promptly notifies the Jacor
Parties  in writing  that the  American  Study  discloses  one or more  material
environmental  liabilities  constituting  a breach  of the  representations  and
warranties of the Jacor Parties  contained in Section 3.15 without regard to any
knowledge  qualifiers  contained  therein,  the  Jacor  Parties  shall  promptly
commence  remedial action at their expense to cure all conditions giving rise to
all such  liabilities and shall use its reasonable  business efforts to cure all
such  conditions  prior to the Closing.  If the Jacor  Parties  promptly  notify
American  in  writing  that  the  Jacor  Study  discloses  one or more  material
environmental  liabilities  constituting  a breach  of the  representations  and
warranties of American contained in Section 4.15 without regard to any knowledge
qualifiers  contained therein,  American shall promptly commence remedial action
at its expense to cure all conditions  giving rise to all such  liabilities  and
shall use its reasonable  business  efforts to cure all such conditions prior to
the  Closing.  Notwithstanding  the  foregoing,  neither  American nor the Jacor
Parties  shall be  obligated  to  undertake  a cure which such party  reasonably
determines  will  exceed  more than  $150,000  in its  attempt  to cure all such
conditions. If, notwithstanding the use of reasonable business efforts, American
is or the  Jacor  Parties  are  unable  prior  to the  Closing  to cure all such
conditions, the party to whom the Real Property with such material environmental
liability is to be conveyed may elect (i) to terminate this Agreement or (ii) to
waive such  environmental  liability,  in which  event the  waiving  party shall
receive a credit at the Closing in the amount (up to the positive difference, if
any, between (x)

                                      -32-


<PAGE>



$150,000 and (y) the amount theretofore  expended by the other party pursuant to
the  provisions  of this  Section  5.2(f))  reasonably  necessary  to cure  such
environmental  liability or, if such environmental liability cannot be cured, to
compensate it for the reduction in value of such Real  Property  resulting  from
such environmental liability.

         (g) Within thirty (30) days after the execution of this Agreement, each
of  American  and the Jacor  Parties  may,  at its sole  expense,  do a study to
determine, to such party's reasonable satisfaction,  that services for utilities
including,  without  limitation,  water and sewer  service,  telephone  service,
electric and/or gas service and sanitary  services are sufficient to service the
Jacor Real Property or the American Real  Property,  as the case may be, and any
Real Property subject to the American Leases. If either party notifies the other
within such thirty-day period that the utility service is not sufficient for its
reasonable  needs,  then the party receiving such notice shall promptly commence
remedial  action at its  expense  to cure such  insufficiency  and shall use its
reasonable  business  efforts to cure such  insufficiency  prior to the Closing.
Notwithstanding  the foregoing,  neither American nor the Jacor Parties shall be
obligated to spend more than $150,000 in its attempt to cure such insufficiency.
If,  notwithstanding the use of its reasonable business efforts,  American is or
the  Jacor   Parties  are  unable   prior  to  the  Closing  to  cure  any  such
insufficiency, the party to whom the Real Property with such insufficiency is to
be  conveyed  may elect to waive such  insufficiency  in which event the waiving
party shall  receive a credit at the  Closing in the amount (up to the  positive
difference,  if any,  between  (i)  $150,000  and  (ii) the  amount  theretofore
expended by the other party pursuant to the  provisions of this Section  5.2(g))
reasonably necessary to cure such insufficiency or, if such insufficiency cannot
be cured,  to  compensate  it for the  reduction in value of such Real  Property
resulting from such insufficiency.

         (h) Within thirty (30) days after the execution of this Agreement, each
of  American  and the Jacor  Parties  may,  at its sole  expense,  commission  a
reputable  engineer  to conduct  an  inspection  of the Jacor  Assets and or the
American  Assets,  as the case may be (the  inspection  done by  American on the
Jacor Assets is hereinafter called the "American Inspection"; and the inspection
done by the Jacor  Parties  on the  American  Assets is  hereinafter  called the
"Jacor  Inspection").  If American  notifies the Jacor Parties in writing within
such  thirty-day  period  that the  American  Inspection  discloses  one or more
conditions that constitutes a breach of the representations of the Jacor Parties
contained in Section  3.5(b) or 3.7, the Jacor Parties shall  promptly  commence
remedial  action at its  expense to cure all such  conditions  and shall use its
reasonable business efforts to cure all such conditions prior to the Closing. If
the Jacor Parties notify American in writing within such thirty-day  period that
the Jacor Parties inspection discloses one or more conditions that constitutes a
breach of the  representations  of American  contained in Section 4.5(b) or 4.7,
American shall promptly commence remedial action at its expense to cure all such
conditions and, use its reasonable  business efforts to cure all such conditions
prior to the Closing.  Notwithstanding  the foregoing,  neither American nor the
Jacor Parties shall be obligated to undertake a cure which such party reasonably
determines  will  exceed  more than  $150,000  in its  attempt  to cure all such
conditions.  If,  notwithstanding  the use of its reasonable  business  efforts,
American  is or the Jacor  Parties  are unable  prior to the Closing to cure all
such  conditions,  the party to whom the Assets with such  conditions  are to be
conveyed  may  elect  (i) to  terminate  this  Agreement  or (ii) to waive  such
conditions,  in which  event the  waiving  party  shall  receive a credit at the
Closing  in the amount  (up to the  positive  difference,  if any,  between  (x)
$150,000 and (y) the amount theretofore  expended by the other party pursuant to
the provisions of this Section 5.2(h)) reasonably necessary to cure such

                                      -33-


<PAGE>



conditions  or, if such  conditions  cannot be cured,  to  compensate it for the
reduction in value of such Real Property resulting from such conditions.

         (i)   Anything  in  Sections   5.2(e)   through  (h)  to  the  contrary
notwithstanding,  in the event (i) the amount  required to remove or insure over
any  American  Disapproved  Matter  or  Jacor  Disapproved  Matters  or cure any
condition  or  insufficiency  referred to in those  sections  would be more than
$150,000 in the aggregate,  (ii) the party required to remove or insure over any
such American  Disapproved Matter or Jacor Disapproved  Matters or cure any such
condition  or  insufficiency  is not  willing  to spend the  additional  amounts
required to do so, and (c) the other party is not willing to waive such matters,
the  parties  shall  negotiate  in good faith in an effort to resolve the issues
prior to terminating this Agreement.

         5.3 Public  Announcements.  Each  party  shall  consult  with the other
before issuing any press release or otherwise making any public  statements with
respect to this Agreement,  the Exchanges or any other Transaction and shall not
issue any such press release or make any such public statement without the prior
consent of the other,  which  consent  shall not be  unreasonably  withheld,  or
delayed or conditioned.  Notwithstanding  anything to the contrary herein,  each
party and such party's  Affiliates  shall, in accordance  with their  respective
legal obligations, including but not limited to filings permitted or required by
the Securities Act and the Exchange Act, the New York Stock Exchange, the NASDAQ
National  Market  and  other  similar  regulatory  bodies,  make (a) such  press
releases  and other public  statements  and  announcements  as such party or its
Affiliates  deem necessary and appropriate in connection with this Agreement and
the transactions  contemplated hereby, and (b) any and all statements such party
deems  in  its  sole  judgment  to  be  appropriate  in  any  and  all  filings,
prospectuses and other similar documents.  To the extent practicable,  the party
proposing to make such press release or public statement will consult in advance
with the other  regarding  the nature,  extent and form of such press release or
public statement.

         5.4  Notification  of Certain  Matters.  Each party  shall give  prompt
notice  to the  other,  of the  occurrence  or  non-occurrence  of any Event the
occurrence  or  non-occurrence  of  which  would  be  likely  to  cause  (i) any
representation  or warranty made by it contained in this  Agreement to be untrue
or inaccurate in any respect such that one or more of the  conditions of Closing
might not be satisfied, or (ii) any covenant,  condition or agreement made by it
contained in this  Agreement not to be complied with or satisfied,  or (iii) any
change to be made in the Jacor  Disclosure  Schedule or the American  Disclosure
Schedule,  as the  case  may be,  in any  respect  such  that one or more of the
conditions  of Closing  might not be  satisfied,  and any failure  made by it to
comply with or satisfy,  or be able to comply  with or  satisfy,  any  covenant,
condition  or agreement  to be complied  with or  satisfied by it hereunder  (or
thereunder)  in any respect such that one or more of the  conditions  of Closing
might not be  satisfied;  provided,  however,  that the  delivery  of any notice
pursuant  to this  Section  shall not limit or  otherwise  affect  the  remedies
available hereunder to the party receiving such notice.

         5.5 No  Solicitation.  Neither  party  shall,  nor shall it permit  any
Affiliate or any of its  Representatives  (including,  without  limitation,  any
investment banker,  broker,  finder,  attorney or accountant retained by it) to,
initiate,  solicit or facilitate,  directly or indirectly,  any inquiries or the
making of any proposal with respect to any  Alternative  Transaction,  engage in
any discussions or

                                      -34-


<PAGE>



negotiations concerning,  or provide to any other Person any information or data
relating to, it or any Affiliate for the purposes of, or otherwise  cooperate in
any way with or assist or  participate  in, or  facilitate  any inquiries or the
making of any proposal which constitutes,  or may reasonably be expected to lead
to, a proposal  to seek or effect any  Alternative  Transaction,  or agree to or
endorse any Alternative Transaction.  The provisions of this Section shall apply
to each of  American's  Subsidiaries  and the Jacor  Parties'  Subsidiaries  and
Affiliates.

         5.6  Conduct of  Business by the Jacor  Parties  Pending  the  Closing.
Except as otherwise  contemplated by this  Agreement,  and subject to American's
time  brokering of the  Citicasters  Stations  pursuant to the provisions of the
Citicasters  Stations TBA and the Regent Stations  pursuant to the provisions of
the Regent Stations TBA,  unless American shall otherwise agree in writing,  the
Jacor  Parties  shall,  and shall cause their  respective  Subsidiaries,  to the
extent relating to the Jacor Stations or the Jacor Assets, to:

                  (a) conduct  their  respective  businesses in the ordinary and
         usual course of business and consistent with past practice;

                  (b) use all  reasonable  business  efforts to preserve  intact
         their respective  business  organizations and goodwill,  keep available
         the  services of their  respective  present  general  managers,  on-air
         personalities  and other key  employees,  and preserve the goodwill and
         business  relationships  with  customers  and  others  having  business
         relationships  with them and not  engage  in any  action,  directly  or
         indirectly,  with the  intent  to  adversely  affect  the  transactions
         contemplated by this Agreement;

                  (c) maintain with financially  responsible insurance companies
         insurance  on their  respective  tangible  assets and their  respective
         businesses  in such  amounts and  against  such risks and losses as are
         consistent with past practice;

                  (d) maintain  levels of  advertising,  marketing and promotion
         efforts and expenditures consistent with past practices;

                  (e) (i) operate each of the Jacor Stations in conformity  with
         the Jacor FCC Licenses on a basis consistent with past practice and any
         special   temporary   authority  or  program  test   authority   issued
         thereunder,  the  FCA  and  the  rules  and  regulations  of any  other
         Authority with  jurisdiction  over any of the Jacor Stations,  and (ii)
         take all actions necessary to maintain the Jacor FCC Licenses;

                  (f) refrain from  changing  the  frequency or format of any of
         the  Jacor  Stations  or  making  any  material  changes  in any  Jacor
         Station's studio or other structures,  except to the extent required by
         the FCA or the rules and regulation of the FCC;

                  (g) not make any material changes in the broadcast hours or in
         the  percentage or types of  programming  broadcast by any of the Jacor
         Stations,  or make any other  material  changes in any Jacor  Station's
         programming policies, except such changes as in the good faith judgment
         of the Jacor Parties are required by the public interest;


                                      -35-


<PAGE>



                  (h) not (i) dispose of any of the Jacor Assets owned by any of
         the Jacor Parties or used in the operation of any of the Jacor Stations
         (other than for the  disposition in the ordinary  course of business of
         immaterial  assets that are of no further use to such Station or assets
         that are replaced with assets of like kind and  quality);  (ii) modify,
         change in any  material  respect or enter into any  Material  Agreement
         relating to the business of any of the Jacor Stations; or (iii) fail to
         maintain  the  Jacor  Personal  Property  in a manner  consistent  with
         generally  accepted  standards  of good  engineering  practice and in a
         state of good repair and maintenance and operating condition;

                  (i) notify  American  promptly if any Jacor  Station's  normal
         broadcast transmissions are interrupted or impaired for (i) thirty (30)
         minutes  or more  daily  for a period of five (5)  consecutive  days or
         during any seven (7) days within any period of thirty (30)  consecutive
         days  (except  for  normal  maintenance)  or (ii) a  period  of six (6)
         continuous  hours or more and  promptly  take  any  actions  reasonably
         requested to remedy promptly the same;

                  (j) not create, assume or permit to exist any Lien upon any of
         the Jacor Assets or any of the Jacor Stations, except for (i) Permitted
         Liens and (ii) other  Liens,  if any,  set forth on  Section  3.5(a) or
         3.5(b) of the Jacor Disclosure  Schedule (which Liens shall be released
         prior to Closing); and

                  (k)  not  waive  any  material  right  relating  to the  Jacor
         Stations.

         5.7  Conduct of Business by  American  Pending the  Closing.  Except as
otherwise  contemplated  by this  Agreement,  and subject to  Citicasters'  time
brokering of the American Stations pursuant to the American Citicasters Stations
TBA and Regent's time brokering of the American Regent Stations  pursuant to the
American  Regent Stations TBA, unless the Jacor Parties shall otherwise agree in
writing,  after the date hereof and prior to the Closing  Date,  with respect to
the American Stations, American shall, and shall cause its Subsidiaries,  to the
extent relating to any of the American Stations or the American Assets, to:

                  (a) conduct  their  respective  businesses in the ordinary and
         usual course of business and consistent with past practice;

                  (b) use all  reasonable  business  efforts to preserve  intact
         their respective  business  organizations and goodwill,  keep available
         the  services of their  respective  present  general  managers,  on-air
         personalities  and other key  employees,  and preserve the goodwill and
         business  relationships  with  customers  and  others  having  business
         relationships  with them and not  engage  in any  action,  directly  or
         indirectly,  with the  intent  to  adversely  affect  the  transactions
         contemplated by this Agreement;

                  (c) maintain with financially  responsible insurance companies
         insurance  on their  respective  tangible  assets and their  respective
         businesses  in such  amounts and  against  such risks and losses as are
         consistent with past practice;

                  (d) maintain  levels of  advertising,  marketing and promotion
         efforts and expenditures consistent with past practices;

                                      -36-


<PAGE>




                  (e) (i) operate  each of the American  Stations in  conformity
         with the American FCC Licenses on a basis consistent with past practice
         and any special  temporary  authority or program test authority  issued
         thereunder,  the  FCA  and  the  rules  and  regulations  of any  other
         Authority with  jurisdiction over any of the American Stations and (ii)
         take all actions necessary to maintain the American FCC Licenses;

                  (f) refrain from  changing  the  frequency or format of any of
         the American  Stations or making any  material  changes in any American
         Station's studio or other structures,  except to the extent required by
         the FCA or the rules and regulation of the FCC;

                  (g) not make any material changes in the broadcast hours or in
         the percentage or types of programming broadcast by any of the American
         Stations,  or make any other material changes in any American Station's
         programming policies, except such changes as in the good faith judgment
         of American are required by the public interest;

                  (h) not (i)  dispose of any of the  American  Assets  owned by
         American  or  used in the  operation  of any of the  American  Stations
         (other than for the  disposition in the ordinary  course of business of
         immaterial  assets that are of no further use to such Station or assets
         that are replaced with assets of like kind and  quality);  (ii) modify,
         change in any  material  respect or enter into any  Material  Agreement
         relating to the business of any of the American Stations; or (iii) fail
         to maintain the American  Personal Property in a manner consistent with
         generally  accepted  standards  of good  engineering  practice and in a
         state of good repair and maintenance and operating condition;

                  (i)  notify  the  Jacor  Parties   promptly  if  any  American
         Station's  normal broadcast  transmissions  are interrupted or impaired
         for (i)  thirty  (30)  minutes  or more  daily for a period of five (5)
         consecutive  days or during  any seven (7) days  within  any  period of
         thirty (30) consecutive days (except for normal  maintenance) or (ii) a
         period  of six (6)  continuous  hours  or more  and  promptly  take any
         actions reasonably requested to remedy promptly the same;

                  (j) not create, assume or permit to exist any Lien upon any of
         the  American  Assets or any of the American  Stations,  except for (i)
         Permitted  Liens and (ii)  other  Liens,  if any,  set forth on Section
         4.5(a) or 4.5(b) of the American Disclosure Schedule (which Liens shall
         be released prior to Closing); and

                  (k) not waive any material rights relating to the American
         Stations.

         5.8 Risk of Loss. The risk of loss or damage to any of the Assets prior
to the Closing Date, which is not the responsibility at the time of such loss or
damage of the  acquiring  party under the express terms of the  applicable  TBA,
shall be upon the  transferring  party.  In the event of any such loss or damage
for which a  transferring  party is  responsible,  it shall repair,  replace and
restore any such damaged or lost Asset  substantially  to its prior condition as
soon as possible and in no event later than forty-five (45) days (or such longer
period as is reasonable under the  circumstances)  following the loss or damage;
provided,  however,  that in the event  any such  loss or  damage of the  Assets
exists on the Closing Date,  then,  notwithstanding  any other provision of this
Agreement, the

                                      -37-


<PAGE>



acquiring  party at is option may extend the Closing  Date for a period of up to
sixty (60) days until such time as the  transferring  party shall have repaired,
replaced and restored any such damaged or lost Asset  substantially to its prior
condition;  alternatively,  at the request of the acquiring  party,  the parties
shall negotiate in good faith to determine an equitable  adjustment in the terms
of the Exchanges  (including the payment of cash by the  transferring  party) to
cover any such loss or damage and consummate the Exchanges on the Closing Date.

         5.9      American and Jacor Station Employees.

         (a) American will,  during the effectiveness of the Jacor Stations TBA,
employ each Jacor Station  Employee  and,  thereafter,  simultaneously  with the
consummation  of the  Exchange,  offer  employment  to each such  Jacor  Station
Employee, in each case on terms and conditions which are not less favorable,  in
the aggregate with respect to each such employee,  than the terms and conditions
of such  Jacor  Station  Employee's  current  employment  (a true,  correct  and
complete in all material  respects  description of which is set forth in Section
5.9 of the Jacor Disclosure Schedule) or, in the event it does not so offer such
employment,  assume the termination arrangements for such Jacor Station Employee
(a true,  correct and complete in all material respects  description of which is
set forth in Section 5.9 of the Jacor Disclosure Schedule).

         (b) Jacor will,  during the effectiveness of the American Stations TBA,
employ each American Station Employee and,  thereafter,  simultaneously with the
consummation  of the Exchange,  offer  employment to each such American  Station
Employee, in each case on terms and conditions which are not less favorable,  in
the aggregate with respect to each such employee,  than the terms and conditions
of such American  Station  Employee's  current  employment (a true,  correct and
complete in all material respects  description of which is set in Section 5.9 of
the  American  Disclosure  Schedule)  or, in the event it does not so offer such
employment,  assume  the  termination  arrangements  for such  American  Station
Employee (a true,  correct and complete in all material respects  description of
which is set forth in Section 5.9 of the American Disclosure Schedule).


                                    ARTICLE 6

                               CLOSING CONDITIONS

         6.1  Conditions to  Obligations  of Each Party to Effect the Exchanges.
The respective  obligations of each party to effect the Exchanges shall,  except
as hereinafter  provided in this Section,  be subject to the  satisfaction at or
prior to the Closing Date of the following  conditions,  any or all of which may
be waived by written  agreement of the parties  hereto,  in whole or in part, to
the extent permitted by Applicable Law:

                  (a) As of the Closing  Date,  no Legal Action shall be pending
         before or  threatened  in writing by any  Authority  seeking to enjoin,
         restrain,  prohibit or make illegal or to impose any materially adverse
         conditions in connection  with, the  consummation  of the Exchanges and
         the other  Transactions,  or which might,  in the  reasonable  business
         judgment  of  American or the Jacor  Parties,  have a material  adverse
         effect  on the  Assets  and  Stations  to be  acquired  by it, it being
         understood and agreed that a written request by any Authority for

                                      -38-


<PAGE>



         information  with  respect  to  either  of the  Exchanges  or any other
         Transaction,  which  information  could be used in connection with such
         Legal Action,  shall not in itself be deemed to be a threat of any such
         Legal Action; and

                  (b) All authorizations, consents, waivers, orders or approvals
         required  to be obtained  from all  Authorities,  and all  Governmental
         Filings  required to be made by American and the Jacor Parties with any
         Authority,  prior to the  consummation  of the  Exchanges and the other
         Transactions, shall have been obtained from, and made with, the FCC and
         all  other  required  Authorities,   except  for  such  authorizations,
         consents, waivers, orders, approvals, filings,  registrations,  notices
         or  declarations  the  failure  to obtain  or make  would  not,  in the
         reasonable  business  judgment of each of the parties,  have a material
         adverse effect on the Assets and Stations being acquired by such party.
         Without  limiting the generality of the  foregoing,  the FCC shall have
         issued all  necessary  consents and  approvals in  connection  with the
         transactions contemplated by this Agreement, the same shall have become
         Final Orders, and any conditions precedent to the effectiveness of such
         Final  Orders which are  specified  therein  shall have been  satisfied
         without any  materially  adverse  effect upon the party  acquiring such
         Stations.

         6.2 Conditions to Obligations of the American  Parties.  The obligation
of the  American  Parties  to  effect  the  Exchanges  shall be  subject  to the
satisfaction of the following  conditions,  any or all of which may be waived by
American in writing,  in whole or in part, to the extent permitted by Applicable
Law:

                  (a) The Jacor  Parties  shall  have  delivered  or cause to be
         delivered to American all of the  Collateral  Documents  required to be
         delivered by the Jacor  Parties to the American  Parties at or prior to
         the Closing  pursuant to the terms of this  Agreement;  such Collateral
         Documents shall be reasonably satisfactory in form, scope and substance
         to American  and its counsel;  and American and its counsel  shall have
         received all information and copies of all documents, including without
         limitation  lien searches and records of corporate  proceedings,  which
         they may  reasonably  request in connection  therewith,  such documents
         where appropriate to be certified by proper corporate officers;

                  (b) The Jacor  Parties shall have  furnished  American and, at
         American's request, any bank or other financial  institution  providing
         credit to American, with favorable opinions,  dated the Closing Date of
         Graydon, Head & Ritchey,  counsel for the Jacor Parties, and of Hogan &
         Hartson,  L.L.P.,  FCC counsel for the Jacor Parties,  in each case, in
         form, scope and substance reasonably satisfactory to the parties;

                  (c) The  representations  and  warranties of the Jacor Parties
         contained in this  Agreement  shall be true and correct in all material
         respects at and as of the  Closing  Date with the same force and effect
         as though made on and as of such date except  those which speak as of a
         certain  date which  shall  continue  to be true and correct as of such
         date on the Closing Date; each and all of the covenants, agreements and
         conditions to be performed or satisfied by the Jacor Parties  hereunder
         at or prior to the  Closing  Date  shall  have been duly  performed  or
         satisfied in all material  respects;  and the Jacor  Parties shall have
         furnished   American  with  such   certificates   and  other  documents
         evidencing the truth of such

                                      -39-


<PAGE>



         representations  and warranties and the  performance or satisfaction of
         the  covenants,  agreements  and  conditions as American or its counsel
         shall have reasonably requested;

                  (d) To the  extent  required  of  American  by  Rule  3-05  of
         Regulation S-X under the Securities  Act,  American shall have received
         (i) from its or the Jacor  Parties'  independent  accountants  a report
         (which shall be unqualified as to the scope of the audit, access to the
         books and records and the  cooperation  of management) on the financial
         statements  (consisting  of balance sheets for each of the fiscal years
         ended  December 31, 1995 and 1996 and statements of operations and cash
         flow for each of the three years in the period ended December 31, 1996)
         of the Jacor  Stations,  which  financial  statements  shall  have been
         prepared  in  conformity   with  GAAP  and  Regulation  S-X  under  the
         Securities  Act, or (ii) from the Jacor Parties such  documentation  as
         shall enable American's  independent  accountants to advise American in
         writing that they could issue such an unqualified report;

                  (e) All authorizations, consents, waivers, orders or approvals
         required to be obtained  pursuant to the  provisions of this  Agreement
         from all Persons (other than Authorities)  prior to the consummation of
         the Exchanges and the other Transactions,  including without limitation
         those required in order to vest fully in American all right,  title and
         interest  in and to all of the  Jacor  Assets  and the  Jacor  Stations
         (including without limitation all Jacor Assumable Agreements heretofore
         requested  by  American  and set forth in  Section  6.2(e) of the Jacor
         Disclosure  Schedule)  and the full  enjoyment  thereof shall have been
         obtained,  without the imposition,  individually or in the aggregate of
         any condition or requirement  which could  materially  adversely affect
         the Jacor Assets or the Jacor Stations;  provided,  however,  that with
         respect to Jacor  Assumable  Agreements  not so  identified on Schedule
         6.2(e) of the Jacor  Disclosure  Schedule,  the Jacor Parties shall use
         reasonable  efforts to obtain any required  third party consents to the
         assignment thereof as requested by American, but obtaining such consent
         shall not be a condition to Closing;

                  (f) Between the date of this  Agreement  and the Closing Date,
         there shall not have  occurred and be continuing  any material  adverse
         change in the Jacor  Assets or the Jacor  Stations;  as of the  Closing
         Date,  the FCC Licenses  with respect to the Jacor  Stations  shall not
         have been  materially and adversely  affected by any act, or failure to
         act, of any Jacor Party or any of their Affiliates;

                  (g) Withing thirty (30) days from the date of this  Agreement:
         (i) the Board of Directors of American shall have approved and ratified
         this Agreement and the  consummation of the  transactions  contemplated
         hereby;  and (ii) the lenders of American and its affiliates shall have
         granted  in  writing  their  consent  and any  required  waivers to the
         transactions contemplated hereby; and

                  (h) From the date hereof  through the  Closing  Date,  (i) the
         Citicasters  Stations TBA shall not have been terminated by American as
         permitted by the  Citicaster  Stations TBA as a result of  Citicaster's
         material  noncompliance  with its  obligations  under  the  Citicasters
         Stations  TBA;  and (ii) the  Regent  Stations  TBA shall not have been
         terminated by Regent  Broadcasting  as permitted by the Regent Stations
         TBA as a result of Regent's material noncompliance with its obligations
         under the American Regent Stations TBA.

                                      -40-


<PAGE>




         6.3  Conditions to Obligations of the Jacor Parties . The obligation of
the Jacor Parties to effect the Exchanges  shall be subject to the  satisfaction
of the  following  conditions,  any or all of which  may be  waived by the Jacor
Parties in writing,  in whole or in part, to the extent  permitted by Applicable
Law:

                  (a) The American  Parties shall have  delivered or cause to be
         delivered to the Jacor Parties all of the Collateral Documents required
         to be  delivered  by the  American  Parties to the Jacor  Parties at or
         prior to the  Closing  pursuant  to the terms of this  Agreement;  such
         Collateral  Documents shall be reasonably  satisfactory in form,  scope
         and  substance to the Jacor  Parties and their  counsel;  and the Jacor
         Parties and their  counsel  shall have  received  all  information  and
         copies of all documents, including without limitation lien searches and
         records of corporate proceedings,  which they may reasonably request in
         connection therewith,  such documents where appropriate to be certified
         by proper corporate officers;

                  (b) The  American  Parties  shall  have  furnished  the  Jacor
         Parties and, at the Jacor Parties' request, any bank of other financial
         institution  providing  credit to the Jacor Parties or any  Subsidiary,
         with favorable opinions, dated the Closing Date of Sullivan & Worcester
         LLP, counsel for the American Parties,  and of Dow, Lohnes & Albertson,
         FCC counsel for the American Parties,  in each case, in form, scope and
         substance reasonably satisfactory to the parties;

                  (c) The representations and warranties of the American Parties
         contained in this  Agreement  shall be true and correct in all material
         respects at and as of the  Closing  Date with the same force and effect
         as though made on and as of such date except  those which speak as of a
         certain  date  which  shall  continue  to be true  and  correct  in all
         material  respects as of such date on the Closing Date; each and all of
         the  covenants,  agreements and conditions to be performed or satisfied
         by the American Parties hereunder at or prior to the Closing Date shall
         have been duly performed or satisfied in all material respects; and the
         American  Parties  shall have  furnished  the Jacor  Parties  with such
         certificates   and  other  documents   evidencing  the  truth  of  such
         representations  and warranties and the  performance or satisfaction of
         the covenants,  agreements and conditions as the Jacor Parties or their
         counsel shall have reasonably requested;

                  (d) To the  extent  required  of  American  by  Rule  3-05  of
         Regulation S-X under the  Securities  Act, the Jacor Parties shall have
         received (i) from their or American's independent  accountants a report
         (which shall be unqualified as to the scope of the audit, access to the
         books and records and the  cooperation  of management) on the financial
         statements  (consisting  of balance sheets for each of the fiscal years
         ended  December 31, 1995 and 1996 and statements of operations and cash
         flow for each of the three years in the period ended December 31, 1996)
         of the American  Stations,  which financial  statements shall have been
         prepared  in  conformity   with  GAAP  and  Regulation  S-X  under  the
         Securities Act, or (ii) from the American Parties such documentation as
         shall enable the Jacor Parties'  independent  accountants to advise the
         Jacor  Parties in writing  that they  could  issue such an  unqualified
         report;

                                      -41-


<PAGE>




                  (e) All authorizations, consents, waivers, orders or approvals
         required to be obtained  pursuant to the  provisions of this  Agreement
         from all Persons (other than Authorities)  prior to the consummation of
         the Exchanges and the other Transactions,  including without limitation
         those  required in order to vest fully in the Jacor  Parties all right,
         title  and  interest  in and to all of  the  American  Assets  and  the
         American Stations  (including without limitation all American Assumable
         Agreements  heretofore  requested by the Jacor Parties and set forth in
         Section  6.3(e)  of the  American  Disclosure  Schedule)  and the  full
         enjoyment  thereof shall have been  obtained,  without the  imposition,
         individually or in the aggregate, of any condition or requirement which
         could  materially  adversely affect the American Assets or the American
         Stations;  provided,  however,  that with respect to American Assumable
         Agreements  not so  identified  on  Schedule  6.3(e)  of  the  American
         Disclosure  Schedule,  American shall use reasonable  efforts to obtain
         any  required  third  party  consents  to  the  assignment  thereof  as
         requested by the Jacor Parties, but obtaining such consent shall not be
         a condition to Closing;

                  (f) Between the date of this  Agreement  and the Closing Date,
         there shall not have  occurred and be continuing  any material  adverse
         change in the  American  Assets  or the  American  Stations;  as of the
         Closing Date,  the FCC Licenses  with respect to the American  Stations
         shall not have been  materially  and adversely  affected by any act, or
         failure to act, of the American Parties or any of their Affiliates;

                  (g) Withing thirty (30) days from the date of this  Agreement:
         (i) the Board of Directors  of Jacor  Communications,  Inc.  shall have
         approved  and  ratified  this  Agreement  and the  consummation  of the
         transactions  contemplated  hereby;  and  (ii)  the  lenders  of  Jacor
         Communications,  Inc. and its Affiliates  shall have granted in writing
         their consent and any required waivers to the transactions contemplated
         hereby; and

                  (h) From the date hereof  through the  Closing  Date,  (i) the
         American  Citicasters  Stations TBA shall not have been  terminated  by
         Citicasters as permitted by the American  Citicaster  Stations TBA as a
         result of American's material  noncompliance with its obligations under
         the American  Citicasters  Stations  TBA; and (ii) the American  Regent
         Stations TBA shall not have been  terminated by Regent  Broadcasting as
         permitted by the American Regent Stations TBA as a result of American's
         material  noncompliance  with its obligations under the American Regent
         Stations TBA.


                                    ARTICLE 7

                        TERMINATION, AMENDMENT AND WAIVER

         7.1 Termination.  This Agreement may be terminated at any time prior to
the Closing Date:

                  (a) by mutual consent of the Jacor Parties and American; or


                                      -42-


<PAGE>



                  (b) by either  American or the Jacor  Parties if any permanent
         injunction,   decree  or  judgment  by  any  Authority  preventing  the
         consummation   of  the   Exchanges   shall   have   become   final  and
         nonappealable; or

                  (c) by the  Jacor  Parties  in the  event  none  of the  Jacor
         Parties is in material breach of its agreements and covenants set forth
         in this Agreement and none of their representations or warranties shall
         have become and  continue  to be untrue in any  material  respect,  and
         either  (i)  the  Exchanges  has  not  been  consummated  prior  to the
         Termination  Date or (ii) either of the American Parties is in material
         breach of its  agreements or covenants  set forth in this  Agreement or
         any of its representations or warranties shall have become and continue
         to be untrue in any material  respect and such breach or untruth exists
         and is not cured within the cure period specified in this Section; or

                  (d) by American in the event  neither of the American  Parties
         is in material breach of its agreements and covenants set forth in this
         Agreement and none of their  representations  or warranties  shall have
         become and  continue to be untrue in any material  respect,  and either
         (i) the Exchanges  has not been  consummated  prior to the  Termination
         Date or (ii) any of the  Jacor  Parties  is in  material  breach of its
         agreements  or  covenants  set  forth in this  Agreement  or any of its
         representations  or  warranties  shall have  become and  continue to be
         untrue in any material respect and such breach or untruth exists and is
         not cured within the cure period specified in this Section; or

                  (e)  by  American  or  the  Jacor  Parties   pursuant  to  the
         provisions of Section 5.2(e), 5.2(f) or (h).

Neither  party shall have the right to terminate  this  Agreement as a result of
the other  party's  breach or default  unless the  terminating  party shall have
given the  defaulting  party thirty (30)  business  days to cure the default (or
such longer period not in excess of an  additional  thirty (30) business days as
is, in the reasonable business judgment of the parties,  reasonably necessary to
effect  such  cure  so long as the  defaulting  party  is  proceeding  with  due
diligence and best efforts to effect such cure);  provided,  however,  that such
cure period shall not extend the Termination Date.

         The term "Termination Date" shall, subject to the provisions of Section
5.8,  mean March 31,  1998 or such other date as the parties  may,  from time to
time, mutually agree.

         The right of American or the Jacor Parties to terminate  this Agreement
pursuant to this  Section  shall remain  operative  and in full force and effect
regardless of any investigation made by or on behalf of either party, any Person
controlling any such party or any of their  respective  Representatives  whether
prior to or after the execution of this Agreement.

         7.2 Effect of  Termination.  Except as provided  in Sections  5.1 (with
respect to  confidentiality),  5.3 and 9.3 and this Section, in the event of the
termination  of this  Agreement  pursuant to Section 7.1, this  Agreement  shall
forthwith  become void, there shall be no liability on the part of either party,
or  any  of  their  respective  Affiliates  (including  stockholders,  officers,
directors or  Representatives  ), to the other and all rights and obligations of
either party shall cease;  provided,  however,  that such termination  shall not
relieve either party from liability for any

                                      -43-


<PAGE>



misrepresentation  or breach of any of its  warranties,  covenants or agreements
set forth in this Agreement.


                                    ARTICLE 8

                                 INDEMNIFICATION

         8.1 Survival.  Except as otherwise  provided in Section  2.2(d) and the
last sentence of Section 5.1(a) to the effect that the provisions of Section 2.2
and  of  such  sentence,   respectively,   shall  survive  the  Closing  without
limitation,  and except with  respect to  obligations  and  liabilities  assumed
pursuant  to  the  American   Assumable   Agreements  and  the  Jacor  Assumable
Agreements,  the  representations,  warranties,  covenants and agreements of the
parties  contained  in or made  pursuant  to this  Agreement  or any  Collateral
Document shall survive the Closing and shall remain  operative and in full force
and effect for a period of (a) two (2) years after the  Closing  Date or (b) the
applicable  statute of  limitations  in the case of matters  arising  out of any
breach referred to in Sections 2.3(a),  2.3(b),  2.3(c),  3.1(a),  3.1(b), 3.10,
3.15, 4.1(a), 4.1(b), 4.10, 4.15 and 5.2(c) (the "Indemnity Period"), regardless
of any investigation or statement as to the results thereof made by or on behalf
of any party hereto.  No claim for  indemnification,  other than with respect to
fraud,   may  be  asserted  after  the  expiration  of  the  Indemnity   Period.
Notwithstanding  anything herein to the contrary, any representation,  warranty,
covenant  and  agreement  which is the  subject of a Claim  which is asserted in
writing  prior to the  expiration  of the  Indemnity  Period shall  survive with
respect  to such  Claim or any  dispute  with  respect  thereto  until the final
resolution thereof.

         8.2 Indemnification.  Each party (the "indemnifying party") agrees that
on and after the Closing it shall  indemnify  and hold  harmless the other party
(the "indemnified party") from and against any and all damages,  claims, losses,
expenses,  costs,  obligations and  liabilities,  including  without  limitation
liabilities for all reasonable  attorneys',  accountants'  and experts' fees and
expenses  including those incurred to enforce the terms of this Agreement or any
Collateral Document (collectively,  "Loss and Expense"),  suffered,  directly or
indirectly, by the indemnified party by reason of, or arising out of:

                  (a) any  breach  of  representation  or  warranty  made by the
         indemnifying  party  pursuant  to  this  Agreement  or  any  Collateral
         Document or any failure by the indemnifying party to perform or fulfill
         any of its  respective  covenants  or  agreements  set  forth  in  this
         Agreement or any Collateral Document; or

                  (b) any  Legal  Action  or  other  Claim  by any  third  party
         relating to the  indemnifying  party or the  ownership or operations of
         any of its Assets or the conduct of the business of its Stations to the
         extent such Legal  Action or other Claim has also  resulted in a breach
         of  representation  or warranty by the  indemnifying  party pursuant to
         this Agreement or any Collateral Document; or

                  (c) the American  Nonassumed  Liabilities  (in the case of the
         American Parties being the indemnifying party) and the Jacor Nonassumed
         Liabilities (in the case of the Jacor

                                      -44-


<PAGE>



         Parties being the indemnifying party), including without limitation any
         Legal Action or other Claim brought or asserted by any third party; or

                  (d) the  failure to comply with the Bulk Sales Law, if any, of
         the  State of Ohio  (in the case of  American  being  the  indemnifying
         party) or the State of Missouri (in the case of the Jacor Parties being
         the indemnifying party).

The  liability  of each of the  American  Parties and each of the Jacor  Parties
under this Article 8 shall,  subject to the  provisions of Section 8.3, be joint
and several.  Without  limiting the  generality  of any other  provision of this
Agreement,  the term "each indemnifying  party" in this Article 8 shall mean the
American Parties as a group and the Jacor Parties as a group and not each member
thereof individually.

         8.3 Limitation of Liability.  Notwithstanding the provisions of Section
8.2, after the Closing,  each  indemnifying  party's  rights to  indemnification
shall be subject to the following  limitations:  (i) the indemnified party shall
be  entitled to recover its Loss and Expense in respect of any Claim only in the
event  that the  aggregate  Loss and  Expense  for all  Claims  exceeds,  in the
aggregate,  $150,000,  in which event the indemnified party shall be entitled to
recover  all such Loss and  Expense,  and (ii) in no event  shall the  aggregate
amount required to be paid by each indemnifying party pursuant to the provisions
of this Section exceed $2,000,000, except for any Loss or Expense arising out of
matters of a nature  referred to in  Sections  3.1(b) and 4.1(b) as to which the
limitations set forth in this clause (ii) shall not apply. The provisions of the
immediately preceding sentence of this Section with respect to the limitation on
each  indemnifying  party's  obligation  to indemnify the  indemnified  party in
respect of Loss and  Expense  shall not be  applicable  to any claims  which are
based on fraud or willful or intentional breach of representation or warranty.

         8.4 Notice of Claims.  If an  indemnified  party  believes  that it has
suffered or incurred  any Loss and  Expense,  it shall  notify the  indemnifying
party promptly in writing,  and in any event within the  applicable  time period
specified in Section 8.1, describing such Loss and Expense,  all with reasonable
particularity  and containing a reference to the provisions of this Agreement in
respect of which such Loss and Expense shall have occurred.  If any Legal Action
is  instituted  by a third  party  with  respect to which an  indemnified  party
intends  to claim any  liability  or  expense  as Loss and  Expense  under  this
Article,  such indemnified party shall promptly notify the indemnifying party of
such Legal Action, but the failure to so notify the indemnifying party shall not
relieve such indemnifying party of its obligations under this Article, except to
the  extent  such  failure to notify  materially  prejudices  such  indemnifying
party's ability to defend against such Claim.

         8.5 Defense of Third Party Claims.  The  indemnifying  party shall have
the right to  conduct  and  control,  through  counsel  of their  own  choosing,
reasonably  acceptable to the indemnified party, any third party Legal Action or
other Claim, but the indemnified party may, at its election,  participate in the
defense thereof at its sole cost and expense; provided, however, that if (a) the
indemnifying  party shall fail to defend any such Legal Action or other Claim or
(b) the  indemnified  party shall have been advised by counsel that there may be
one or more  legal  defenses  available  to it which  are  different  from or in
addition to those  available to the  indemnifying  party,  then the  indemnified
party may defend, through counsel of its own choosing,  reasonably acceptable to
the  indemnifying  party,  such Legal Action or other Claim,  and (so long as it
gives the

                                      -45-


<PAGE>



indemnifying  party at least  fifteen  (15)  days'  notice  of the  terms of the
proposed settlement thereof and permits the indemnifying party to then undertake
the defense  thereof) settle such Legal Action or other Claim and to recover the
amount  of such  settlement  or of any  judgment  and the  reasonable  costs and
expenses of such defense.  The indemnifying party shall not compromise or settle
any such Legal Action or other Claim  without the prior  written  consent of the
indemnified party, which consent shall not be unreasonably withheld,  delayed or
conditioned.

         8.6  Exclusive  Remedy.  Except for fraud or as  otherwise  provided in
Section 9.5, the indemnification  provided in this Article shall be the sole and
exclusive  post-Closing remedy available to either party against the other party
for any Claim under this Agreement.


                                    ARTICLE 9

                               GENERAL PROVISIONS

         9.1  Amendment.  This Agreement may be amended from time to time by the
parties  hereto at any time prior to the Closing Date but only by an  instrument
in writing signed by the parties hereto.

         9.2 Waiver. At any time prior to the Closing Date, except to the extent
not  permitted by Applicable  Law,  American or the Jacor Parties may extend the
time for the  performance of any of the  obligations or other acts of the other,
waive  any  inaccuracies  in the  representations  and  warranties  of the other
contained  herein  or in any  document  delivered  pursuant  hereto,  and  waive
compliance  by the other with any of the  agreements,  covenants  or  conditions
contained herein.  Any such extension or waiver shall be valid only if set forth
in an instrument in writing signed by the party or parties to be bound thereby.

         9.3 Fees, Expenses and Other Payments. All costs and expenses, incurred
in connection  with any transfer  taxes,  sales taxes,  document stamps or other
charges levied by any Authority in connection with this Agreement, the Exchanges
and the other  Transactions,  shall be borne by American insofar as they related
to the  American  Stations  and the  American  Assets  and by the Jacor  Parties
insofar as they relate to the Jacor  Stations and the Jacor  Assets.  All filing
and similar fees (including without limitation Hart-Scott-Rodino filings and FCC
filing fees) shall be borne equally by American,  on the one hand, and the Jacor
Parties,  on the other hand. All other costs and expenses incurred in connection
with this Agreement, the Exchanges and the other Transactions, and in compliance
with Applicable Law and Contracts as a consequence hereof and thereof, including
without  limitation fees and  disbursements of counsel,  financial  advisors and
accountants incurred by the parties hereto shall be borne solely and entirely by
the party which has incurred such costs and expenses.

         9.4  Notices.  All  notices  and  other  communications  which  by  any
provision of this Agreement are required or permitted to be given shall be given
in  writing  and shall be (a)  mailed by  first-class  or  express  mail,  or by
recognized  courier  service,  postage  prepaid,  (b) sent by  telex,  telegram,
telecopy  or other form of rapid  transmission,  confirmed  by mailing (by first
class or express  mail,  or by  recognized  courier  service,  postage  prepaid)
written confirmation at substantially

                                      -46-


<PAGE>



the same time as such rapid  transmission,  or (c)  personally  delivered to the
receiving party (which if other than an individual  shall be an officer or other
responsible party of the receiving party).  All such notices and  communications
shall be mailed, sent or delivered as follows:

         (a)      If to American:

                  116 Huntington Avenue
                  Boston, Massachusetts 02116
                  Attention:   Steven B. Dodge, President 
                                 and Chief Executive Officer
                  Telecopier No.:  (617) 375-7575

                  with a copy to:

                  Sullivan & Worcester LLP
                  One Post Office Square
                  Boston, Massachusetts 02109
                  Attention:  Norman A. Bikales, Esq.
                  Telecopier No.:  (617) 338-2880

         (b)      If to the Jacor Parties:

                  50 East Rivercenter Boulevard
                  Covington, Kentucky  41011
                  Attention: Randy Michaels, President
                  Telecopier No.: (606) 655-9345

                  with a copy to:

                  Graydon, Head & Ritchey
                  1900 Fifth Third Center
                  511 Walnut Street
                  Cincinnati, OH 45202
                  Attention: John Kropp, Esq.
                  Telecopier No.: (513) 651-3836

or to such other person(s),  telex or facsimile  number(s) or address(es) as the
party to receive any such communication or notice may have designated by written
notice to the other party.

         9.5  Specific  Performance;  Other  Rights  and  Remedies.  Each  party
recognizes and agrees that in the event the other party should refuse to perform
any of its  obligations  under this  Agreement or any Collateral  Document,  the
remedy at law would be inadequate and agrees that for breach of such provisions,
each party shall,  in addition to such other  remedies as may be available to it
at law or in equity or as  provided  in Article  7, be  entitled  to  injunctive
relief and to enforce its rights by an action for  specific  performance  to the
extent permitted by Applicable Law. Each party hereby waives any requirement for
security  or the  posting  of any bond or other  surety in  connection  with any
temporary or permanent award of injunctive, mandatory or other equitable relief.
Nothing

                                      -47-


<PAGE>



herein  contained shall be construed as prohibiting each party from pursuing any
other remedies available to it pursuant to the provisions of, and subject to the
limitations contained in, this Agreement for such breach or threatened breach.

         9.6  Severability.  If any term or provision of this Agreement shall be
held or deemed  to be, or shall in fact be,  invalid,  inoperative,  illegal  or
unenforceable  as  applied  to  any  particular  case  in  any  jurisdiction  or
jurisdictions,  or in  all  jurisdictions  or  in  all  cases,  because  of  the
conflicting of any provision with any  constitution or statute or rule of public
policy or for any other reason,  such circumstance  shall not have the effect of
rendering the provision or provisions in question invalid, inoperative,  illegal
or unenforceable in any other  jurisdiction or in any other case or circumstance
or of rendering any other  provision or  provisions  herein  contained  invalid,
inoperative,  illegal or  unenforceable to the extent that such other provisions
are not themselves actually in conflict with such constitution,  statute or rule
of public policy, but this Agreement shall be reformed and construed in any such
jurisdiction or case as if such invalid,  inoperative,  illegal or unenforceable
provision had never been contained herein and such provision reformed so that it
would be valid,  operative and  enforceable to the maximum  extent  permitted in
such jurisdiction or in such case.  Notwithstanding the foregoing,  in the event
of any such  determination  the  effect  of which is to  affect  materially  and
adversely either party, the parties shall negotiate in good faith to modify this
Agreement  so as to effect  the  original  intent of the  parties  as closely as
possible to the fullest  extent  permitted by  Applicable  Law in an  acceptable
manner to the end that the  Exchanges and the other  Transactions  are fulfilled
and consummated to the maximum extent possible;  provided,  however, that in the
event the parties are unable to reach  agreement  within a reasonable  period of
time, under the circumstances, with respect to such modification, this Agreement
shall terminate and be of no further force and effect.

         9.7   Counterparts.   This   Agreement   may  be  executed  in  several
counterparts,  each of  which  shall be  deemed  an  original,  but all of which
together shall constitute one and the same  instrument,  binding upon all of the
parties. In pleading or proving any provision of this Agreement, it shall not be
necessary to produce more than one of such counterparts.

         9.8 Section Headings.  The headings contained in this Agreement are for
reference  purposes  only  and  shall  not in any  way  affect  the  meaning  or
interpretation of this Agreement.

         9.9  Governing  Law. The  validity,  interpretation,  construction  and
performance of this Agreement  shall be governed by, and construed in accordance
with,  the  applicable  laws of the United States of America and the laws of the
State of New York  applicable to contracts made and performed in such State and,
in any event,  without giving effect to any choice or conflict of laws provision
or rule that would cause the  application  of domestic  substantive  laws of any
other jurisdiction.  Anything in this Agreement to the contrary notwithstanding,
including  without  limitation  the provisions of Article 8, in the event of any
dispute  between the parties  which results in a Legal  Action,  the  prevailing
party shall be entitled to receive from the non-prevailing  party  reimbursement
for reasonable legal fees and expenses incurred by such prevailing party in such
Legal Action.

         9.10 Further Acts. Each party agrees that at any time, and from time to
time, before and after the consummation of the transactions contemplated by this
Agreement, it will do all such things

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<PAGE>



and execute and deliver all such Collateral  Documents and other assurances,  as
any other party or its counsel  reasonably deems necessary or desirable in order
to carry out the terms and  conditions of this  Agreement  and the  transactions
contemplated  hereby or to facilitate the enjoyment of any of the rights created
hereby or to be created hereunder.

         9.11 Entire  Agreement.  This  Agreement  (together with the Disclosure
Schedules and the other Collateral Documents delivered in connection  herewith),
constitutes  the  entire  agreement  of the  parties  and  supersedes  all prior
agreements and undertakings,  both written and oral,  between the parties,  with
respect to the subject matter hereof.

         9.12 Assignment. This Agreement shall not be assignable by either party
and any such  assignment  shall be null and void,  except that it shall inure to
the benefit of and be binding  upon any  successor  to any party by operation of
law,  including by way of merger,  consolidation or sale of all or substantially
all of its assets,  and each party may assign its rights and remedies  hereunder
to any bank or other financial  institution  which has loaned funds or otherwise
extended  credit to it.  Without  limiting  the  generality  of the  immediately
preceding  sentence,  in the event that either  party finds it  necessary  or is
required to provide to a third  party a  collateral  assignment  of their or its
interest in this Agreement and/or any Collateral Documents, the other party will
cooperate with either the party  requesting such assignment and any third party,
including  but not  limited  to  signing a consent  and  acknowledgment  of such
assignment.

         9.13  Parties in  Interest.  This  Agreement  shall be binding upon and
inure  solely to the  benefit of each  party,  and  nothing  in this  Agreement,
express or implied,  is  intended to or shall  confer upon any Person any right,
benefit or remedy of any nature whatsoever under or by reason of this Agreement,
except as otherwise provided in Section 9.12.

         9.14 Mutual Drafting. This Agreement is the result of the joint efforts
of the American  Parties and the Jacor Parties,  and each  provision  hereof has
been  subject to the  mutual  consultation,  negotiation  and  agreement  of the
parties  and there  shall be no  construction  against  any  party  based on any
presumption of that party's involvement in the drafting thereof.

         9.15 American Agent for American License. Anything in this Agreement to
the  contrary  notwithstanding,  American  License  hereby  grants  American  an
irrevocable power of attorney and hereby irrevocably appoints American its agent
for all purposes of this Agreement, including without limitation for the purpose
of executing and delivering extensions of the time for the performance of any of
the obligations or other acts of any of the Jacor Parties, waivers, terminations
or  amendments,  and any  action  taken by  American  pursuant  to such power of
attorney and agency,  and any such extension,  waiver,  termination or amendment
executed  and  delivered by American,  shall be binding  upon  American  License
whether  or not it has  specifically  approved  such  action  or  executed  such
extension, waiver, termination or amendment.

         9.16  Citicasters  Agent for the Other Jacor Parties.  Anything in this
Agreement  to the  contrary  notwithstanding,  Regent  Broadcasting  and  Regent
Licensee hereby grants  Citicasters an irrevocable  power of attorney and hereby
irrevocably  appoints  Citicasters its agent for all purposes of this Agreement,
including  without  limitation  for the  purpose  of  executing  and  delivering
extensions of the time for the  performance  of any of the  obligations or other
acts of either of the

                                      -49-


<PAGE>



American Parties, waivers,  terminations or amendments,  and any action taken by
Citicasters  pursuant  to such  power  of  attorney  and  agency,  and any  such
extension,  waiver, termination or amendment executed and delivered by American,
shall be binding upon Regent  Broadcasting and Regent Licensee whether or not it
has  specifically  approved  such action or  executed  such  extension,  waiver,
termination or amendment.

         9.17     Disclosure Schedules.

         (a) The Jacor  Parties will deliver to American,  on or before July 11,
1997, the Jacor  Disclosure  Schedule and all related  documents  required to be
delivered by Jacor  pursuant to Article 3 of this  Agreement.  American shall be
permitted, for a period of ten (10) business days commencing upon its receipt of
the completed Jacor Disclosure  Schedule and related documents to terminate this
Agreement,  if (i) the Jacor Disclosure  Schedule reveals any condition of which
the  American  Parties are unaware as of the date of this  Agreement  and/or any
breaches  of  Jacor'  representations,  warranties  and/or  covenants  hereunder
(without regard to matters set forth in the Jacor  Disclosure  Schedule),  which
unknown  conditions  and/or  breaches  in the  aggregate  would  have a material
adverse  effect on the value of the Jacor Assets or the Jacor Stations or on the
American  Parties'  ability to operate the Jacor  Stations as they are currently
being  operated,  or (ii) the  parties  are  unable to agree  upon  which  Jacor
Material  Agreements  with  respect  to  which  a  third-party  consent  to  the
assignment thereof will be a condition to Closing.

         (b) American  will  deliver to the Jacor  Parties on or before July 11,
1997, the American  Disclosure Schedule and all related documents required to be
delivered by American pursuant to Article 4 of this Agreement. The Jacor Parties
shall be permitted,  for a period of ten (10) business days  commencing upon its
receipt of the completed American  Disclosure  Schedule and related documents to
terminate this Agreement,  if (i) the American  Disclosure  Schedule reveals any
condition of which Jacor is unaware as of the date of this Agreement  and/or any
breaches of the American Parties'  representations,  warranties and/or covenants
hereunder  (without  regard  to  matters  set forth in the  American  Disclosure
Schedule),  which unknown conditions and/or breaches in the aggregate would have
a material  adverse  effect on the value of the American  Assets or the American
Stations or on the Jacor  Parties'  ability to operate the American  Stations as
they are currently being operated,  or (ii) the parties are unable to agree upon
which American Material  Agreements with respect to which a third-party  consent
to the assignment thereof will be a condition to Closing.



                                      -50-


<PAGE>




         IN WITNESS WHEREOF,  American,  American License,  Citicasters,  Regent
Broadcasting and Regent Licensee have caused this Agreement to be executed as of
the date  first  written  above  by their  respective  officers  thereunto  duly
authorized.

                                    American Radio Systems Corporation


                                    By:_____________________________________
                                        Name:
                                        Title:


                                    American Radio Systems License Corp.


                                    By:_____________________________________
                                        Name:
                                        Title:


                                    Citicasters Co.


                                    By:______________________________________
                                        Name:
                                        Title:

                                    Regent Broadcasting of Kansas City, Inc.


                                    By:_____________________________________
                                        Name:
                                        Title:


                                    Regent Licensee of Kansas City, Inc.


                                    By:_____________________________________
                                        Name:
                                        Title:



                                      -51-


<PAGE>



                                                                      APPENDIX A

                                   DEFINITIONS

         Accounts  Receivable  shall mean any and all  rights to the  payment of
money or other forms of  consideration  of any kind at any time now or hereafter
owing  or  to be  owing  to  American  or  Citicasters,  as  the  case  may  be,
attributable  to the  sale of time or  talent  on one of its  Stations  (whether
classified under the Uniform Commercial Code of any state as accounts,  contract
rights, chattel paper, general intangibles or otherwise).

         adverse,  adversely,  shall mean any Event which has, or is  reasonably
likely to, (a) adversely affect the validity or enforceability of this Agreement
or the likelihood of consummation of the Exchanges,  or (b) adversely affect the
ownership or operation of the Jacor Assets or the American Assets or the conduct
of the business of the Jacor Stations or the American Stations,  as the case may
be, or (c) impair any American Party's or any Jacor Party's, as the case may be,
ability to fulfill its  obligations  under the terms of this  Agreement,  or (d)
adversely  affect the aggregate  rights and remedies of the American  Parties or
the Jacor Parties, as the case may be, under this Agreement. Notwithstanding the
foregoing,  and  anything in this  Agreement  to the  contrary  notwithstanding,
neither any general  business or  economic  factor nor any Event  affecting  the
radio  broadcasting  industry generally shall be deemed to constitute an adverse
change, have an adverse effect or to adversely affect or effect.

         Affiliate, Affiliated shall mean, with respect to any Person, any other
Person at the time  directly or indirectly  controlling,  controlled by or under
direct or indirect common control with such Person.

         Agreement shall mean this Agreement as originally in effect,  including
this Appendix A, the American Disclosure  Schedule,  the Citicasters  Disclosure
Schedule and all exhibits  hereto,  and as any of the same may from time to time
be supplemented,  amended,  modified or restated in the manner herein or therein
provided.

         Alternative  Transaction  shall mean a transaction or series of related
transactions (other than the Exchanges and the other Transactions)  resulting in
(a) any merger or consolidation of either party, regardless of whether it is the
surviving  Entity  unless the  surviving  Entity  remains  obligated  under this
Agreement to the same extent as it was, or (b) any sale or other  disposition of
all or any  substantial  part of the Assets  owned by it or any of the  Stations
owned by it.

         American shall have the meaning given to it in the Preamble.

         American  Accounts  Receivable  shall  mean  the  Accounts  Receivables
arising in  connection  with the  ownership  or operation of any of the American
Assets or the conduct of the business of any of the American  Stations  prior to
the applicable Cut-off Date American  Citicasters Accounts Receivable shall mean
the American  Accounts  Receivables  arising in connection with the ownership or
operation  of any of the  American  Citicasters  Assets  or the  conduct  of the
business of any of the American Citicasters  Stations.  American Regent Accounts
Receivable shall mean the American  Accounts  Receivables of American arising in
connection  with the ownership or operation of any of the American Regent Assets
or the conduct of the business of any of the American Regent Stations.



                                      

<PAGE>



         American  Assets  shall  mean  all  assets  used or held for use in the
ownership  or operation of or the conduct of the business of any of the American
Stations,  including without limitation the American Real Property, the American
Personal   Property,   the  American   Private   Authorizations,   the  American
Governmental  Authorizations  (including  without  limitation  the  American FCC
Licenses), the American Intangible Assets and the American Assumable Agreements,
and the logs,  public files and other books,  records,  files and documents that
relate to any of the American  Stations,  but  excluding  the American  Excluded
Assets.  American Citicasters Assets shall mean the American Assets used or held
for use in the  ownership  or operation of or the conduct of the business of any
of the American  Citicasters  Stations.  American  Regent  Assets shall mean the
American  Assets used or held for use in the  ownership  or  operation of or the
conduct of the business of any of the American Regent Stations.

         American   Assumable   Agreements   shall  mean  the  American  Private
Authorizations,  the American  Trade  Agreements,  the  American  Leases and the
American Other Contracts.  American Citicasters  Assumable Agreements shall mean
the American  Assumable  Agreements that relate to the ownership or operation of
any of the American  Citicasters Assets or the conduct of the business of any of
the American  Citicasters  Stations.  American Regent Assumable Agreements shall
mean the American Assumable Agreements that relate to the ownership or operation
of any of the  American  Regent  Assets or the conduct of the business of any of
the American Regent Stations.

         American  Disapproved  Matters  shall have the  meaning  given to it in
Section 5.2(e).

         American   Disclosure  Schedule  shall  mean  the  American  Disclosure
Schedule  dated as of the  date of this  Agreement  delivered  by  American  and
American License to the Jacor Parties.

         American  Employee  Plans shall have the meaning given to it in Section
4.11(a).

         American  Excluded Assets shall mean (i) all cash and cash  equivalents
of American (ii) all American Accounts Receivable,  (iii) the corporate names of
American,  and its  books,  records  and  other  documents  that  relate  to its
corporate existence, organization and capitalization, (iv) all books and records
of American  that relate to any of the American  Stations and which  American is
required by Applicable Law to retain, subject to the right of the other party to
have access and to copy for a period of three (3) years from the  Closing  Date,
(v) the American Employee Plans, (vi) all insurance  policies that relate to the
American  Assets,  (vii)  software  programs  and other  assets  used to provide
certain financial and accounting services for any of the American Stations,  and
(viii) any and all  products,  profits and  proceeds of, and  including  without
limitation any Claims with respect to, any of the foregoing.

         American FCC Licenses  shall have the meaning given to it in the second
Whereas paragraph. American Citicasters FCC Licenses shall mean the American FCC
Licenses with respect to the ownership and operation of the American Citicasters
Assets and the conduct of the  business of the  American  Citicasters  Stations.
American  Regent FCC Licenses  shall mean the American FCC Licenses with respect
to the ownership and operation of the American  Regent Assets and the conduct of
the business of the American Regent Stations.




                                       A-2

<PAGE>



         American  Financial  Statements  shall have the meaning  given to it in
Section 4.2(a).

         American Governmental Authorizations shall have the meaning given to it
in Section 4.7(a). American Citicasters  Governmental  Authorizations shall mean
the  American  Governmental  Authorizations  with respect to the  ownership  and
operation  of any of the  American  Citicasters  Assets  and the  conduct of the
business  of  any  of  the  American  Citicasters   Stations.   American  Regent
Governmental  Authorizations shall mean the American Governmental Authorizations
with respect to the ownership and operation of any of the American Regent Assets
and the conduct of the business of any of the American Regent Stations.

         American  Inspection  shall  have the  meaning  given to it in  Section
5.2(h).

         American  Intangible  Assets  shall  have  the  meaning  given to it in
Section  4.8.  American  Citicasters  Intangible  Assets shall mean the American
Intangible  Assets with  respect to the  ownership  and  operation of any of the
American  Citicasters  Assets  and the  conduct  of the  business  of any of the
American Citicasters Stations.  American Regent Intangible Assets shall mean the
American Intangible Assets with respect to the ownership and operation of any of
the  American  Regent  Assets  and the  conduct  of the  business  of any of the
American Regent Stations.

         American  Leases shall have the meaning given to it in Section  4.5(a).
American  Citicasters  Leases shall mean the American Leases with respect to the
ownership  and  operation  of any of the  American  Citicasters  Assets  and the
conduct of the business of any of the American  Citicasters  Stations.  American
Regent  Leases shall mean the American  Leases with respect to the ownership and
operation of any of the American  Regent  Assets and the conduct of the business
of any of the American Regent Stations.

         American License shall have the meaning given to it in the Preamble.

         American  Material  Agreements  shall have the  meaning  given to it in
Section 4.12. American  Citicasters  Material Agreements shall mean the American
Material  Agreements  with respect to the  ownership and operation of any of the
American  Citicasters  Assets  and the  conduct  of the  business  of any of the
American  Citicasters  Stations.  American Regent Material Agreements shall mean
the American Material  Agreements with respect to the ownership and operation of
any of the American  Regent Assets and the conduct of the business of any of the
American Regent Stations.

         American  Nonassumed  Liabilities shall have the meaning given to it in
Section  2.3(c).  American  Citicasters  Nonassumed  Liabilities  shall have the
meaning given to it in Section 2.3(b).  American Regent  Nonassumed  Liabilities
shall have the meaning given to it in Section 2.3(c).

         American  Other  Contracts   shall  mean  (a)  all  American   Material
Agreements set forth on Section 4.12 of the American  Disclosure  Schedule,  (b)
all Contracts of American for the sale of time on any American  Station for cash
entered into in the ordinary course of business  consistent with prior practice,
and (c)  Contracts  not  required to be listed on Section  4.12 of the  American
Disclosure  Schedule  that  have been  entered  into in the  ordinary  course of
business. American Citicasters Other



                                       A-3

<PAGE>



Contracts  shall mean the American Other Contracts with respect to the ownership
and operation of any of the American  Citicasters  Assets and the conduct of the
business of any of the  American  Citicasters  Stations.  American  Regent Other
Contracts  shall mean the American Other Contracts with respect to the ownership
and  operation  of any of the  American  Regent  Assets  and the  conduct of the
business of any of the American Regent Stations.

         American  Owned Real  Property  shall have the  meaning  given to it in
Section 4.5(a). American Citicasters Owned Real Property shall mean the American
Owned Real  Property  with respect to the  ownership and operation of any of the
American  Citicasters  Assets  and the  conduct  of the  business  of any of the
American  Citicasters  Stations.  American Regent Owned Real Property shall mean
the American  Owned Real Property with respect to the ownership and operation of
any of the American  Regent Assets and the conduct of the business of any of the
American Regent Stations.

         American Parties shall have the meaning given to it in the Preamble.

         American  Permitted Title Exceptions shall have the meaning given to it
in Section 5.2(e).

         American Personal  Property shall mean all items of Personal  Property,
used or  held  for use in the  ownership  or  operation  or the  conduct  of the
business of any of the American Stations. American Citicasters Personal Property
shall mean the American  Personal  Property  with respect to the  ownership  and
operation  of any of the  American  Citicasters  Assets  and the  conduct of the
business of any of the American Citicasters  Stations.  American Regent Personal
Property shall mean the American Personal Property with respect to the ownership
and  operation  of any of the  American  Regent  Assets  and the  conduct of the
business of any of the American Regent Stations.

         American Preliminary Title Report shall have the meaning given to it in
Section 5.2(e).

         American Private  Authorizations shall mean all Private  Authorizations
obtained or held for use in the  ownership  or  operation  or the conduct of the
business  of  any  of  the  American  Stations.   American  Citicasters  Private
Authorizations  shall mean the American Private  Authorizations  with respect to
the ownership and  operation of any of the American  Citicasters  Assets and the
conduct of the business of any of the American  Citicasters  Stations.  American
Regent Private  Authorizations  shall mean the American  Private  Authorizations
with respect to the ownership and operation of any of the American Regent Assets
and the conduct of the business of any of the American Regent Stations.

         American  Proration  Schedules  shall  mean  the  American  Citicasters
Proration  Schedule  and  the  American  Regent  Proration  Schedule.   American
Citicasters  Proration  Schedule  shall have the meaning  given to it in Section
2.3(f). American Regent Proration Schedule shall have the meaning given to it in
Section 2.3(g).

         American  Real  Property  shall have the meaning given to it in Section
4.5(a). American Citicasters Real Property shall mean the American Real Property
with respect to the ownership  and operation of any of the American  Citicasters
Assets and the conduct of the business of any of the



                                       A-4

<PAGE>



American  Citicasters  Stations.  American  Regent Real Property  shall mean the
American Real Property with respect to the ownership and operation of any of the
American  Regent  Assets and the conduct of the  business of any of the American
Regent Stations.

         American Survey shall have the meaning given to it in Section 5.2(e).

         American  Station  Employees  shall  have  the  meaning  given to it in
Section 4.11(b).

         American  Stations  shall  have the  meaning  given to it in the second
Whereas paragraph.  American  Citicasters  Stations and American Regent Stations
shall mean the respective  American Stations  designated as such in the American
Disclosure Schedule.

         American Stations TBA shall mean the American  Citicasters Stations TBA
and the American Regent Stations TBA.  American  Citicasters  Stations TBA shall
have the meaning given to it in Section  5.2(d).  American  Regent  Stations TBA
shall have the meaning given to it in Section 5.2(d).

         American Study shall have the meaning given to it in Section 5.2(f).

         American Tower  Adjustment  shall mean an amount equal to the aggregate
amount of fees, expenses and other costs incurred by American in the upgrade and
improvement  of its tower for  WXEG-FM  located  in Dayton,  Ohio  which  amount
American has advised Jacor is approximately  $260,000.  American will furnish to
Jacor such information as Jacor may reasonably  request in order to substantiate
the aggregate amount of such fees, expenses and other costs and the parties will
agree on the exact  amount  thereof  no later  than  five (5) days  prior to the
Closing Date.

         American Trade  Agreements shall mean all Trade Agreements in effect on
the date hereof or entered  into on or prior to the Cut-Off Date that relates to
the  ownership or operation of any of the American  Assets or the conduct of the
business of any of the American Stations.  American Citicasters Trade Agreements
shall  mean all  American  Trade  Agreements  that  relate to the  ownership  or
operation  of any of the  American  Citicasters  Assets  or the  conduct  of the
business of any of the  American  Citicasters  Stations.  American  Regent Trade
Agreements shall mean all American Trade Agreements that relate to the ownership
or operation of any of the American Regent Assets or the conduct of the business
of any of the American Regent Stations.

         American's knowledge (including the term "to the knowledge, information
and belief of American") means the actual knowledge of any executive  officer of
either of the  American  Parties or any General  Manager of any of the  American
Stations.

         Applicable Law shall mean any Law of any Authority, whether domestic or
foreign,  including  without  limitation  all federal and state  securities  and
Environmental  Laws,  to which a Person is  subject or by which it or any of its
business or  operations  is subject or any of its  property or assets is legally
bound.

         Appraisals shall have the meaning given to it in Section 2.2(a).



                                       A-5

<PAGE>



         Assets shall mean the  American  Assets in the case of American and the
Citicasters Assets in the case of Citicasters.

         Authority   shall   mean   any    governmental    authority,    whether
administrative,  executive,  judicial,  legislative or other, or any combination
thereof,  including without limitation any federal, state, territorial,  county,
municipal or other  government or governmental  agency,  arbitrator,  authority,
board,  body,  branch,  bureau,  central  bank or  comparable  agency or Entity,
commission, corporation, court, department,  instrumentality,  master, mediator,
panel, referee, system or other political unit or subdivision or other Entity of
any of the foregoing, whether domestic or foreign.

         Citicasters shall have the meaning given to it in the Preamble.

         Citicasters Kansas City Proration Schedule shall have the meaning given
to it in Section 2.3(f).

         Claims  shall mean any and all Legal  Actions  and  claims,  pending or
threatened,   and  judgments  of  whatever  kind  and  nature   relating  debts,
liabilities,   obligations,  losses,  damages,  deficiencies,   assessments  and
penalties,   together  with  thereto,   and  all  fees,   costs,   expenses  and
disbursements  (including  without  limitation  reasonable  attorneys' and other
legal fees, costs and expenses) that relate to any of the foregoing.

         Closing shall have the meaning given to it in Section 2.4.

         Closing Date shall have the meaning given to it in Section 2.4.

         Code shall mean the Internal  Revenue  Code of 1986,  and the rules and
regulations  thereunder,  all as from time to time in effect,  or any  successor
law,  rules or  regulations,  and any  reference to any  statutory or regulatory
provision  shall be deemed  to be a  reference  to any  successor  statutory  or
regulatory provision.

         Collateral Document shall mean the American  Citicasters  Stations TBA,
the American  Regent  Stations  TBA, the  Citicasters  Stations  TBA, the Regent
Stations TBA, the conveyancing documents required to vest in the acquiring party
the  Assets  and  Stations  to be  acquired  by it  pursuant  to  the  Exchanges
(including without limitation a General Conveyance, Bill of Sale, Assignment and
Assumption,  assignments and  assumptions of the Jacor Assumable  Agreements and
American  Assumable  Agreements,   assignments  and  assumptions  of  Intangible
Assets), and any agreement,  certificate,  contract, instrument, notice, opinion
or  other  document  required  to be  delivered  or  delivered  pursuant  to the
provisions of this Agreement or any of the foregoing.

         Collection Period shall have the meaning given to it in Section 2.5.

         Contract, Contractual Obligation shall mean any agreement, arrangement,
commitment,  contract, covenant,  indemnity,  undertaking or other obligation or
liability  which involves the ownership and operation of the American  Assets or
the  Citicasters  Assets or the conduct of the  business of any of the  American
Stations or the Citicasters Stations.



                                       A-6

<PAGE>



         Control (including the terms  "controlled,"  "controlled by" and "under
common control with") means the possession, directly or indirectly or as trustee
or executor,  of the power to direct or cause the direction of the management or
policies of a Person,  or the disposition of such Person's assets or properties,
whether through the ownership of stock, equity or other ownership,  by contract,
arrangement or understanding,  or as trustee or executor,  by contract or credit
arrangement or otherwise.

         Cut-off Date shall mean (i) with respect to any Contract to be assigned
and the rights and obligations to be assumed  pursuant to any TBA (including all
items of revenue and expense that relate to such  Contract),  the applicable TBA
Date for such TBA and (ii) in all other cases, the Closing Date.

         Dayton Proration Schedule shall have the meaning given to it in Section
2.3(e).

         Disclosure  Schedule shall mean the American Disclosure Schedule or the
Jacor Disclosure Schedule, as the case may be.

         Encumber  shall  mean  to  suffer,  accept,  agree  to  or  permit  the
imposition of a Lien.

         Entity shall mean any corporation,  firm, unincorporated  organization,
association,  partnership,  limited  liability  company,  trust  (inter vivos or
testamentary),  estate of a deceased, insane or incompetent individual, business
trust,  joint stock  company,  joint  venture or other  organization,  entity or
business,  whether acting in an individual,  fiduciary or other capacity, or any
Authority.

         Environmental  Law  shall  mean any Law  that  relate  to or  otherwise
imposing liability or standards of conduct concerning pollution or protection of
the  environment,  including  without  limitation Laws that relate to emissions,
discharges,  releases or  threatened  releases of Hazardous  Materials  into the
environment (including,  without limitation,  ambient air, surface water, ground
water,  land  surface or  subsurface  strata) or  otherwise  that  relate to the
manufacture,  processing,  generation,  distribution,  use, treatment,  storage,
disposal, cleanup, transport or handling of pollutants,  contaminants, chemicals
or industrial, toxic or hazardous substances, materials or wastes. Environmental
Laws shall include without limitation the Comprehensive  Environmental Response,
Compensation  and Liability Act (42 U.S.C.  Section 6901 et seq.), the Hazardous
Material  Transportation  Act (49 U.S.C.  Section  1801 et seq.),  the  Resource
Conservation  and  Recovery Act (42 U.S.C.  Section  6901 et seq.),  the Federal
Water Pollution Control Act (33 U.S.C.  Section 1251 et seq.), the Clean Air Act
(42 U.S.C.  Section 7401 et seq.), the Toxic  Substances  Control Act (15 U.S.C.
Section 2601 et seq.), the Occupational Safety and Health Act (29 U.S.C. Section
651 et seq.),  the Federal  Insecticide  Fungicide and Rodenticide Act (7 U.S.C.
Section 136 et seq.), and any analogous federal,  state, local or foreign, Laws,
and the rules and regulations promulgated thereunder all as from time to time in
effect,  and any  reference to any statutory or  regulatory  provision  shall be
deemed to be a reference to any successor statutory or regulatory provision.

         Environmental Permit shall mean any Governmental Authorization required
by or pursuant to any Environmental Law.




                                       A-7

<PAGE>



         ERISA shall mean the Employee  Retirement  Income Security Act of 1974,
and the rules and regulations thereunder, all as from time to time in effect, or
any successor law, rules or  regulations,  and any reference to any statutory or
regulatory  provision  shall  be  deemed  to be a  reference  to  any  successor
statutory or regulatory provision.

         Event  shall  mean the  existence  or  occurrence  of any act,  action,
activity,  circumstance,  condition,  event,  fact,  failure  to act,  omission,
incident or practice, or any set or combination of any of the foregoing.

         Exchanges  shall  have the  meaning  given to it in the  third  Whereas
paragraph.  Citicasters Exchange shall have the meaning given to it in the third
Whereas  paragraph.  Regent  Exchange  shall have the meaning given to it in the
third Whereas paragraph.

         Exchange Act shall mean the  Securities  Exchange Act of 1934,  and the
rules and  regulations  thereunder,  all as from time to time in effect,  or any
successor  law,  rules or  regulations,  and any  reference to any  statutory or
regulatory  provision  shall  be  deemed  to be a  reference  to  any  successor
statutory or regulatory provision.

         FCA  shall  mean the  Communications  Act of 1934,  and the  rules  and
regulations  thereunder,  all as from time to time in effect,  or any  successor
law,  rules or  regulations,  and any  reference to any  statutory or regulatory
provision  shall be deemed  to be a  reference  to any  successor  statutory  or
regulatory provision.

         FCC shall mean the Federal Communications  Commission and shall include
any successor Authority.

         FCC  Consents  shall mean the  written  actions  of the FCC  (including
without  limitation  written  actions  of the FCC's  Mass  Media  Bureau  acting
pursuant to delegated  authority) granting its consents to the assignment of the
Citicasters  FCC  Licenses to American  License and the American FCC Licenses to
Citicasters.

         FCC Licenses shall mean all Governmental  Authorizations  issued by the
FCC in connection  with the ownership,  operation and conduct of the business of
the Citicasters Stations and the American Stations, as the case may be.

         Final Order shall mean,  with  respect to any  consent,  order or other
action of any Authority,  including without limitation the FCC, one with respect
to which  no  appeal,  no stay,  no  review,  no  petition  or  application  for
rehearing, reconsideration,  review or stay, whether on motion of the applicable
Authority or other Person or otherwise,  is in effect or pending and as to which
the time or  deadline  for  filing  or taking  any such  stay,  review,  appeal,
petition or application has expired or, if filed, has been denied,  dismissed or
withdrawn, and the time or deadline for instituting any further Legal Action has
expired.

         GAAP shall mean generally accepted  accounting  principles as in effect
from time to time in the United States of America.



                                       A-8

<PAGE>



         Governmental  Authorizations  shall  mean all  approvals,  concessions,
consents, franchises,  licenses, permits, registrations and other authorizations
of all Authorities (including without limitation the FCC Licenses) issued by the
FCC, the Federal Aviation  Administration  and any other Authority in connection
with the  ownership or operation of any of the Assets or conduct of the business
of any of the Stations.

         Governmental  Filings shall mean all filings,  including  franchise and
similar Tax filings, submissions, registrations, notices or declarations and the
payment of all fees,  assessments,  interest and penalties  associated with such
filings, with all Authorities.

         Hart-Scott-Rodino  Act  shall  mean  the  Hart-Scott-Rodino   Antitrust
Improvements Act of 1976, and the rules and regulations thereunder,  all as from
time to time in effect,  or any successor  law,  rules or  regulations,  and any
reference to any such statutory or regulatory  provision shall be deemed to be a
reference to any successor statutory or regulatory provision.

         Hazardous  Materials  shall mean and include any  substance,  material,
waste, constituent, compound, chemical, natural or man-made element or force (in
whatever state of matter):  (a) the presence of which requires  investigation or
remediation under any Environmental  Law, or (b) that is defined as a "hazardous
waste" "solid waste", "pollutant",  "contaminant" or "hazardous substance" under
any Environmental Law; or (c) that is toxic,  explosive,  corrosive,  etiologic,
flam  mable,  infectious,  radioactive,  carcinogenic,  mutagenic  or  otherwise
hazardous  and is  regulated  by any  applicable  Authority  or  subject  to any
Environmental Law; or (d) that poses or threatens to pose a hazard to the health
of  persons;  or (e) that  contains  gasoline,  diesel  fuel or other  petroleum
hydrocarbons,   or  any   by-products   or  fractions   thereof,   natural  gas,
polychlorinated   biphenyls  ("PCBs")  and  PCB-containing  equipment  or  other
radioactive  elements,  ionizing  radiation,  radio frequency  radiation,  lead,
asbestos or  asbestos-containing  materials  ("ACM"),  or urea formaldehyde foam
insulation.

         Indebtedness  shall mean,  with  respect to any Person,  (a) all items,
except  items of  capital  stock or of  surplus  or of  general  contingency  or
deferred tax reserves or any minority  interest in any Subsidiary of such Person
to the extent such interest is treated as a liability with indeterminate term on
the  consolidated  balance sheet of such Person,  which in accordance  with GAAP
would be included in  determining  total  liabilities  as shown on the liability
side of a balance sheet of such Person, (b) all obligations  secured by any Lien
to which any property or asset owned or held by such Person is subject,  whether
or not the obligation  secured  thereby shall have been assumed,  and (c) to the
extent not  otherwise  included,  all  Contractual  Obligations  of such  Person
constituting  capitalized leases and all obligations of such Person with respect
to Leases constituting part of a sale and leaseback arrangement.

         Indebtedness for Money Borrowed shall mean, with respect to any Person,
money borrowed and Indebtedness represented by notes payable and drafts accepted
representing   extensions  of  credit,  all  obligations   evidenced  by  bonds,
debentures,  notes or other similar instruments, the maximum amount currently or
at any time thereafter  available to be drawn under all  outstanding  letters of
credit  issued  for the  account of such  Person,  all  Indebtedness  upon which
interest  charges are  customarily  paid by such  Person,  and all  Indebtedness
(including  capitalized lease obligations)  issued or assumed as full or partial
payment for property or services, whether or not any such notes,



                                       A-9

<PAGE>



drafts,  obligations or Indebtedness  represent Indebtedness for money borrowed,
but shall not include (a) trade payables,  (b) expenses  accrued in the ordinary
course of business,  or (c)  customer  advance  payments  and customer  deposits
received in the ordinary course of business.

         Intangible  Assets shall mean all assets and property  lacking physical
properties the evidence of ownership of which must  customarily be maintained by
independent  registration,  documentation,  certification,  recordation or other
means,  and  shall  include,   without  limitation,   concessions,   copyrights,
franchises, license, permits and all Intellectual Property.

         Intellectual  Property  shall mean any and all  research,  information,
inventions,  designs,  procedures,  developments,   discoveries,   improvements,
patents and applications therefor, trademarks and applications therefor, service
marks, trade names copyrights and applications  therefor,  logos, trade secrets,
drawing, plans, systems,  methods,  specifications,  computer software programs,
tapes, discs and related data processing  software (including without limitation
object and source  codes)  owned by such Person or in which it has an  ownership
interest  and all other  manufacturing,  engineering,  technical,  research  and
development data and know-how made, conceived, developed and/or acquired by such
Person,  which  relate  to the  manufacture,  production  or  processing  of any
products  developed  or sold by such  Person or which are within the scope of or
usable in connection  with such Person's  business as it may, from time to time,
hereafter be conducted or proposed to be conducted.

         Jacor and the Jacor  Parties  shall have the meaning given to it in the
Preamble.

         Jacor  Accounts  Receivable  shall  mean the  Accounts  Receivables  of
Citicasters  arising in connection with the ownership or operation of any of the
Jacor Assets or the conduct of the business of any of the Jacor  Stations  prior
to the applicable Cut-off Date. Citicasters Accounts Receivable shall mean Jacor
Accounts  Receivables  arising in connection  with the ownership or operation of
any of the  Citicasters  Assets or the  conduct  of the  business  of any of the
Citicasters  Stations.  Regent  Accounts  Receivable  shall mean Jacor  Accounts
Receivables  arising in connection with the ownership or operation of any of the
Regent Assets or the conduct of the business of any of the Regent Stations prior
to the applicable Cut-off Date.

         Jacor  Assets  shall  mean (a) all  assets  used or held for use in the
ownership or  operation of or the conduct of the business of the Jacor  Stations
by any Jacor  Party or any Entity  Affiliated  with any Jacor  Party,  including
without   limitation   the  Jacor   Personal   Property,   the   Jacor   Private
Authorizations,   the  Jacor  Governmental   Authorizations  (including  without
limitation the Jacor FCC Licenses),  the Jacor  Intangible  Assets and the Jacor
Assumable Agreements, and the logs, public files and other books, records, files
and  documents  that  relate  to the Jacor  Stations,  but  excluding  the Jacor
Excluded  Assets  and  (b)  an  amount  of  cash  equal  to the  American  Tower
Adjustment.  Citicasters Assets shall mean the Jacor Assets used or held for use
in the  ownership  or  operation of or the conduct of the business of any of the
Citicasters  Stations by Citicasters or any Entity  Affiliated with Citicasters.
Regent  Assets shall mean the Jacor Assets used or held for use in the ownership
or operation of or the conduct of the business of any of the Regent  Stations by
Regent or any Entity Affiliated with Regent.




                                      A-10

<PAGE>



         Jacor Assumable Agreements shall mean the Jacor Private Authorizations,
the Jacor Trade  Agreements,  the Jacor  Leases and the Jacor  Other  Contracts.
Citicasters  Assumable Agreements shall mean the Jacor Assumable Agreements that
relate to the  ownership or operation  of any of the  Citicasters  Assets or the
conduct of the business of any of the  Citicasters  Stations.  Regent  Assumable
Agreements  shall  mean  the  Jacor  Assumable  Agreements  that  relate  to the
ownership  or  operation  of any of the  Regent  Assets  or the  conduct  of the
business of any of the Regent Stations.

         Jacor Disapproved Matters shall have the meaning given to it in Section
5.2(e).

         Jacor  Disclosure  Schedule  shall mean the Jacor  Disclosure  Schedule
dated  as of the  date of this  Agreement  delivered  by the  Jacor  Parties  to
American.

         Jacor  Employee  Plans  shall have the  meaning  given to it in Section
3.11(a).

         Jacor Excluded  Assets shall mean (i) all cash and cash  equivalents of
any of the  Jacor  Parties,  (ii)  all  Jacor  Accounts  Receivable,  (iii)  the
corporate names of each of the Jacor Parties,  and its books,  records and other
documents   that   relate  to  its   corporate   existence,   organization   and
capitalization,  (iv) all books and  records  of any of the Jacor  Parties  that
relate to the Jacor Stations and which any Jacor Party is required by Applicable
Law to  retain,  subject to the right of the other  party to have  access and to
copy for a period  of three  (3)  years  from the  Closing  Date,  (v) the Jacor
Employee  Plans,  (vi) all  insurance  policies that relate to the Jacor Assets,
(vii) assets  comprising the traffic and accounting  computer  systems),  (viii)
software  programs  and other  assets  used to  provide  certain  financial  and
accounting  services  for  any of the  Jacor  Stations,  and  (ix)  any  and all
products,  profits and proceeds of, and including without  limitation any Claims
with respect to, any of the foregoing.

         Jacor FCC  Licenses  shall mean the  Citicasters  FCC  Licenses and the
Regent FCC Licenses. Citicasters FCC Licenses shall have the meaning given to it
in the first Whereas paragraph.  Jacor FCC Licenses shall have the meaning given
to it in the first Whereas paragraph.

         Jacor  Financial  Statements  shall  have  the  meaning  given to it in
Section 3.2(a).

         Jacor Governmental Authorizations shall have the meaning given to it in
Section 3.7(a).  Citicasters  Governmental  Authorizations  shall mean the Jacor
Governmental  Authorizations  with respect to the ownership and operation of any
of the  Citicasters  Assets  and  the  conduct  of any  of the  business  of the
Citicasters  Stations.  Regent Governmental  Authorizations shall mean the Jacor
Governmental  Authorizations  with respect to the ownership and operation of any
of the  Regent  Assets  and the  conduct  of any of the  business  of the Regent
Stations.

         Jacor Inspection shall have the meaning given to it in Section 5.2(h).

         Jacor  Intangible  Assets shall have the meaning given to it in Section
3.8.  Citicasters  Intangible Assets shall mean the Jacor Intangible Assets with
respect to the ownership and operation of any of the Citicasters  Assets and the
conduct of the business of any of the Citicasters Stations.



                                      A-11

<PAGE>



Regent  Intangible Assets shall mean the Jacor Intangible Assets with respect to
the  ownership  and operation of any of the Regent Assets and the conduct of the
business of any of the Regent Stations.

         Jacor Kansas City Proration Schedule shall have the meaning given to it
in Section 2.3(f).

         Jacor  Leases  shall have the  meaning  given to it in Section  3.5(a).
Citicasters Leases shall mean the Jacor Leases with respect to the ownership and
operation  of any of the  Citicasters  Assets and the conduct of the business of
any of the Citicasters Stations.  Regent Leases shall mean the Jacor Leases with
respect to the  ownership  and  operation  of any of the  Regent  Assets and the
conduct of the business of any of the Regent Stations.

         Jacor Material Agreements shall have the meaning given to it in Section
3.12.  Citicasters  Material Agreements shall mean the Jacor Material Agreements
with respect to the ownership and operation of any of the Citicasters Assets and
the conduct of the business of any of the Citicasters Stations.  Regent Material
Agreements  shall  mean  the  Jacor  Material  Agreements  with  respect  to the
ownership  and  operation  of any of the Regent  Assets  and the  conduct of the
business of any of the Regent Stations.

         Jacor  Nonassumed  Liabilities  shall have the  meaning  given to it in
Section 2.3(a).  Citicasters Nonassumed Liabilities shall have the meaning given
to it in Section 2.3(a).  Regent  Nonassumed  Liabilities shall have the meaning
given to it in Section 2.3(a).

         Jacor Other Contracts shall mean (a) all Jacor Material  Agreements set
forth on Section 3.12 of the Jacor  Disclosure  Schedule,  (b) all Contracts for
the sale of time on the Jacor  Stations  for cash  entered  into in the ordinary
course of  business  consistent  with  prior  practice,  and (c)  Contracts  not
required to be listed on Section 3.12 of the Jacor Disclosure Schedule that have
been  entered  into  in the  ordinary  course  of  business.  Citicasters  Other
Contracts  shall  mean the Jacor  Other  Contracts  with  respect  to any of the
ownership and operation of any of the Citicasters  Assets and the conduct of the
business of any of the Citicasters  Stations.  Regent Other Contracts shall mean
the Jacor Other  Contracts with respect to the ownership and operation of any of
the Regent Assets and the conduct of the business of any of the Regent Stations.

         Jacor Owned Real Property shall have the meaning given to it in Section
3.5(a). Citicasters Owned Real Property shall mean the Jacor Owned Real Property
with respect to the ownership and operation of any of the Citicasters Assets and
the conduct of the  business of any of the  Citicasters  Stations.  Regent Owned
Real  Property  shall mean the Jacor  Owned Real  Property  with  respect to the
ownership  and  operation  of any of the Regent  Assets  and the  conduct of the
business of any of the Regent Stations.

         Jacor Permitted Title  Exceptions shall have the meaning given to it in
Section 5.2(e).

         Jacor Personal Property shall mean all items of Personal Property, used
or held for use in the  ownership or operation or the conduct of the business of
any of the Jacor Stations.  Citicasters  Personal  Property shall mean the Jacor
Personal  Property  with respect to the  ownership  and  operation of any of the
Citicasters Assets and the conduct of the business of any of the Citicasters



                                      A-12

<PAGE>



Stations.  Regent Personal  Property shall mean the Jacor Personal Property with
respect to the  ownership  and  operation  of any of the  Regent  Assets and the
conduct of the business of any of the Regent Stations.

         Jacor  Preliminary  Title Report shall have the meaning  given to it in
Section 5.2(e).

         Jacor  Private  Authorizations  shall mean all  Private  Authorizations
obtained or held for use in the  ownership  or  operation  or the conduct of the
business of the Citicasters Stations.  Citicasters Private  Authorizations shall
mean  the  Jacor  Private  Authorizations  with  respect  to the  ownership  and
operation  of any of the  Citicasters  Assets and the conduct of the business of
any of the Citicasters  Stations.  Regent Private  Authorizations shall mean the
Jacor Private  Authorizations with respect to the ownership and operation of any
of the  Regent  Assets  and the  conduct  of the  business  of any of the Regent
Stations.

         Jacor Proration  Schedule shall have the meaning given to it in Section
2.3(e).

         Jacor  Real  Property  shall  have the  meaning  given to it in Section
3.5(a).  Citicasters  Real  Property  shall  mean the Jacor Real  Property  with
respect to the ownership and operation of any of the Citicasters  Assets and the
conduct of the business of any of the Citicasters Stations. Regent Real Property
shall mean the Jacor Real  Property  with respect to the ownership and operation
of any of the Regent Assets and the conduct of the business of any of the Regent
Stations.

         Jacor  Stations shall have the meaning given to it in the first Whereas
paragraph.  Citicasters Stations shall have the meaning given to it in the first
Whereas  paragraph.  Regent  Stations  shall have the meaning given to it in the
first Whereas paragraph.

         Jacor Station  Employees  shall have the meaning given to it in Section
3.11(b).

         Jacor  Stations  TBAs shall mean the  Citicasters  Stations TBA and the
Regent Stations TBA. Citicasters Stations TBA shall have the meaning given to it
in Section  5.2(d).  Regent  Stations TBA shall have the meaning  given to it in
Section 5.2(d).

         Jacor Study shall have the meaning given to it in Section 5.2(f).

         Jacor Survey shall have the meaning given to it in Section 5.2(e).

         Jacor Trade Agreements shall mean all Trade Agreements in effect on the
date hereof or entered  into on or prior to the Cut-Off  Date that relate to the
ownership or operation of any of the Jacor Assets or the conduct of the business
of any of the Jacor Stations.  Citicasters Trade Agreements shall mean the Jacor
Trade  Agreements  that  relate  to the  ownership  or  operation  of any of the
Citicasters  Assets or the  conduct of the  business  of any of the  Citicasters
Stations.  Regent Trade  Agreements  shall mean the Jacor Trade  Agreements that
relate to the  ownership or operation of any of the Regent Assets or the conduct
of the business of any of the Regent Stations.




                                      A-13

<PAGE>



         Jacor' knowledge (including the term "to the knowledge, information and
belief of Jacor")  means the actual  knowledge of any  executive  officer of any
Jacor Party or any General Manager of any of the Jacor Stations.

         Law shall mean any (a) administrative,  judicial,  legislative or other
action,  code,  consent  decree,  constitution,  decree,  directive,  enactment,
finding, guideline, law, injunction, interpretation, judgment, order, ordinance,
policy statement,  proclamation,  promulgation,  regulation,  requirement, rule,
rule of law, rule of public policy,  settlement  agreement,  statute, or writ of
any  Authority,  domestic or foreign;  (b) the common law; or (c)  arbitrator's,
mediator's or referee's award, decision,  finding or recommendation;  including,
in each such case or  instance,  any  interpretation,  directive,  guideline  or
request, whether or not having the force of law including, in all cases, without
limitation any particular section, part or provision thereof.

         Lease  shall mean any lease of  property,  whether  real,  personal  or
mixed, and all amendments thereto.

         Legal  Action  shall  mean,  with  respect to any  Person,  any and all
litigation   or   legal   or   other   actions,   arbitrations,   counterclaims,
investigations, proceedings, requests for material information by or pursuant to
the order of any Authority or suits, at law or in arbitration or equity.

         Lien shall  mean any  mortgage;  lien  (statutory  or other);  or other
security  agreement,  arrangement  or interest;  hypothecation,  pledge or other
deposit arrangement;  assignment;  charge; levy; executory seizure;  attachment;
garnishment;  encumbrance  (including  any easement,  exception,  reservation or
limitation,  right of way, and the like);  conditional  sale, title retention or
other  similar  agreement,  arrangement,  device or  restriction;  preemptive or
similar right; any financing or capital lease involving  substantially  the same
economic  effect  as  any of  the  foregoing;  restriction  on  sale,  transfer,
assignment,  disposition or other alienation;  or any option,  equity,  claim or
right of or obligation to, any other Person, of whatever kind and character.

         Like-Kind  Exchanges  shall mean an  Exchanges  of assets of the nature
contemplated by the provisions of Section 1031 of the Code.

         Loss and Expense shall have the meaning given to it in Section 8.2.

         material or  materiality  for the  purposes of this  Agreement,  shall,
unless specifically stated to the contrary,  be determined without regard to the
fact  that  various  provisions  of this  Agreement  set forth  specific  dollar
amounts.

         Material  Agreement  shall  mean,  with  respect  to  any  Person,  any
Contractual  Obligation  which is in effect on the date  hereof  and (a) was not
entered  into in the ordinary  course of  business,  (b) was entered into in the
ordinary course of business which (i) involved annual consideration of more than
Ten Thousand Dollars  ($10,000) during any of the last three fiscal years,  (ii)
extends for more than three (3)  months,  or (iii) is not  terminable  on thirty
(30)  days  or  less  notice  without  penalty  or  other  continuing  financial
obligation,  (c) involves Indebtedness for Money Borrowed,  (d) is an employment
agreement,  (e) is or otherwise  constitutes a written agency,  broker,  dealer,
license, distributorship,  sales representative or similar written agreement, or
(f) accounted for more than



                                      A-14

<PAGE>



three  percent  (3%) of the  revenues  of the  American  Stations  or the  Jacor
Stations in any of the last three  fiscal years or is likely to account for more
than three  percent  (3%) of  revenues  of the  American  Stations  or the Jacor
Stations during the current fiscal year.

         Notice of  Disagreement  shall have the meaning  given to it in Section
2.3(e).

         Organic  Document  shall  mean,  with  respect  to a Person  which is a
corporation,  its certificate or articles of incorporation or organization,  its
by-laws and all stockholder  agreements,  voting trusts and similar arrangements
applicable to any of its capital stock.

         Permitted Liens shall mean (a) any mechanic's or materialmen's  Lien or
similar  Lien with respect to amounts not yet due and payable or which are being
contested in good faith by  appropriate  proceedings  and for which  appropriate
reserves have been  established,  (b) Liens for taxes not yet due and payable or
which are being  contested in good faith by  appropriate  proceeding,  for which
appropriate  reserves  have  been  established,  and  (c)  easements,  licenses,
covenants,  rights  of way  and  similar  Liens  which,  individually  or in the
aggregate,  would not materially and adversely affect the marketability or value
of the property  encumbered thereby or materially  interfere with the operations
of the  Stations,  it  being  understood  that any  Permitted  Liens of a nature
referred  to in clause (a) or (b)  shall,  to the extent  they may  involve  the
payment of money, be taken into account in preparing the Citicasters Kansas City
Proration  Schedule,  the Regent Kansas City  Proration  Schedule and the Dayton
Proration Schedule.

         Permitted  Title  Exceptions   shall  mean  American   Permitted  Title
Exceptions and/or Jacor Permitted Title Exceptions, as the context may indicate.

         Person shall mean any natural individual or any Entity.

         Personal  Property shall mean all of the machinery,  equipment,  tools,
vehicles, furniture, leasehold improvements,  office and studio equipment, spare
parts and other tangible  personal  property,  plus such  additions  thereto and
deletions  therefrom arising in the ordinary course of business between the date
hereof and the Closing Date.

         Preliminary  Title Report shall have the meaning given to it in Section
5.2(e).

         Private Authorizations shall mean all approvals, concessions, consents,
franchises,  licenses,  permits,  and other authorizations of all Persons (other
than Authorities) including without limitation those with respect to copyrights,
computer software programs,  patents,  service marks,  trademarks,  trade names,
technology and know-how.

         Pro Ratable Taxes shall mean real estate and other property  Taxes,  ad
valorem Taxes,  gross  receipts  Taxes and similar Taxes,  but shall not include
federal, state or local income Taxes, franchise Taxes or other Taxes measured by
or based upon income or gain on sale or other disposition of property or assets.




                                      A-15

<PAGE>



         Real Property shall mean all of the fee estates and buildings and other
improvements thereon, leasehold interest, easements, licenses, rights to access,
right-of- way, and other real property interest  (including  without  limitation
any of the foregoing that relate to the towers,  transmitters,  studio sites and
offices of the respective Stations).

         Referee shall have the meaning given to it in Section 2.3(e).

         Regent Broadcasting shall have the meaning given to it in the Preamble.

         Regent Kansas City  Proration  Schedule shall have the meaning given to
it in Section 2.3(g).

         Regent Licensee shall have the meaning given to it in the Preamble.

         Regent Parties shall have the meaning given to it in the Preamble.

         Regulations  shall mean the federal income tax regulations  promulgated
under  the Code,  as such  Regulations  may be  amended  from time to time.  All
references  herein to specific  sections of the Regulations shall be deemed also
to refer to any  corresponding  provisions  of succeeding  Regulations,  and all
references  to  temporary  Regulations  shall  be  deemed  also to  refer to any
corresponding provisions of final Regulations.

         Representatives shall have the meaning given to it in Section 5.1(a).

         SEC shall mean the United States  Securities and Exchanges  Commission,
or any successor Authority.

         Securities Act shall mean the Securities Act of 1933, and the rules and
regulations of the SEC  thereunder,  all as from time to time in effect,  or any
successor  law,  rules or  regulations,  and any  reference to any  statutory or
regulatory  provision  shall  be  deemed  to be a  reference  to  any  successor
statutory or regulatory provision.

         Stations shall mean, collectively,  the Jacor Stations and the American
Stations.

         Subsidiary shall mean, with respect to a Person,  any Entity a majority
of the capital stock  ordinarily  entitled to vote for the election of directors
of which,  or if no such voting stock is  outstanding,  a majority of the equity
interests of which, is owned directly or indirectly, legally or beneficially, by
such Person or any other Person controlled by such Person.

         Tax and Taxes (and "Taxable",  which shall mean subject to Tax),  shall
mean, with respect to any Person, (a) all taxes (domestic or foreign), including
without  limitation any income (net,  gross or other including  recapture of any
tax items such as investment  tax credits),  alternative  or add-on minimum tax,
gross income,  gross receipts,  gains,  sales,  use,  leasing,  lease,  user, ad
valorem, transfer,  recording,  franchise,  profits, property (real or personal,
tangible or  intangible),  fuel,  license,  withholding on amounts paid to or by
such  Person,  payroll,  employment,   unemployment,  social  security,  excise,
severance, stamp, occupation, premium, environmental or windfall profit tax,



                                      A-16

<PAGE>


custom,  duty or other  tax,  or other  like  assessment  or  charge of any kind
whatsoever, together with any interest, levies, assessments, charges, penalties,
addition to tax or additional  amount imposed by any Taxing  Authority,  (b) any
joint or several  liability of such Person with any other Person for the payment
of any  amounts of the type  described  in (a),  and (c) any  liability  of such
Person for the payment of any amounts of the type  described  in (a) as a result
of any express or implied obligation to indemnify any other Person.

         Tax  Claim  shall  mean any Claim  which  relates  to Taxes,  including
without  limitation  any Claim arising out of any breach of the  representations
and warranties set forth in Section 3.10 or 4.10.

         Tax Return or Returns shall mean all returns, consolidated or otherwise
(including without limitation  information  returns),  required to be filed with
any Authority with respect to Taxes.

         Taxing   Authority  shall  mean  any  Authority   responsible  for  the
imposition of any Tax.

         TBA Date  shall  mean the date when  operations  under  the TBAs  shall
become effective (or in the event such date is not the same for all of the TBAs,
the applicable date of such effectiveness).

         TBAs shall mean the  American  Citicasters  Stations  TBA, the American
Regent Stations TBA, the  Citicasters  Stations TBA and the Regent Stations TBA,
or the applicable one of such agreements.

         Termination Date shall have the meaning given to it in Section 7.1.

         Trade  Agreements  shall mean any  Contract  that  relate to any of the
Stations  pursuant  to which  American or any Jacor Party is required to provide
air time in exchange for property or services other than cash.

         Transactions shall mean the Exchanges and all of the other transactions
contemplated  by this  Agreement  to be  consummated  on or prior to the Closing
Date,  including without  limitation the execution,  delivery and performance of
the Collateral Documents.

         Valuation  Schedule  shall  have the  meaning  given  to it in  Section
2.2(b).






                                      A-17



                                                                   EXHIBIT 10.13













                            ASSET EXCHANGE AGREEMENT




                                  by and among




                       AMERICAN RADIO SYSTEMS CORPORATION


                      AMERICAN RADIO SYSTEMS LICENSE CORP.


                       ENTERTAINMENT COMMUNICATIONS, INC.


                                       and


                            ECI LICENSE COMPANY, L.P.














                               Dated July 18, 1997



<PAGE>



                            ASSET EXCHANGE AGREEMENT



                  THIS  AGREEMENT  made and entered  into this 18th day of July,
1997, by and among AMERICAN RADIO SYSTEMS  CORPORATION,  a Delaware  corporation
(hereinafter   "ARS"),   AMERICAN  RADIO  SYSTEMS   LICENSE  CORP.,  a  Delaware
corporation (hereinafter "ARS License"),  ENTERTAINMENT COMMUNICATIONS,  INC., a
Pennsylvania corporation (hereinafter "Entercom"), and ECI LICENSE COMPANY L.P.,
a Pennsylvania limited partnership (hereinafter "ECI").

                                    RECITALS

                  WHEREAS,  Entercom and ECI have entered into an Asset Exchange
Agreement  dated as of March  12,  1997 by and  among  Bonneville  International
Corporation,   Bonneville   Holding   Company,   Group  W   Broadcasting,   Inc.
("Westinghouse"),  Entercom and ECI (the "Westinghouse Agreement"),  pursuant to
which  Entercom and ECI have,  among other  things,  acquired the Assets and the
Authorizations  used in connection with the operation of radio station KLOU(FM),
St. Louis, Missouri; and

                  WHEREAS,  Entercom is the sole general partner of ECI and owns
a 99% interest therein; and

                  WHEREAS,  ARS and  ARS  License  have  entered  into an  Asset
Exchange Agreement dated as of June 19, 1997 (the "JACOR  Agreement"),  pursuant
to which ARS and ARS License have, among other things,  agreed to sell WMMX(FM),
WTUE(FM),  WONE(AM), Dayton, Ohio, WLQT(FM),  Kettering-Dayton,  Ohio, WBTT(FM),
Englewood,  Ohio and WXEG(FM),  Beavercreek,  Ohio (together,  the "Relinquished
Stations")  and  to  acquire  various  assets   including  the  Assets  and  the
Authorizations used in connection with the operation of radio stations WDAF(AM),
Kansas City,  Missouri,  and  KUDL(FM),  Kansas  City,  Kansas (the "Kansas City
Stations"); and

                  WHEREAS,  ARS  desires to acquire  the KLOU  Property  and ARS
License  desires to acquire  the KLOU  Authorizations  in a  like-kind  exchange
transaction; and

                  WHEREAS,  Entercom desires to acquire the ARS Property and ECI
desires to acquire  the  Kansas  City  Authorizations  in a  like-kind  exchange
transaction; and

                  WHEREAS,  the parties have agreed,  subject to the  conditions
set  forth  herein,  that  ARS and ARS  License  shall  assign  to a  "qualified
intermediary"    (within    the    meaning   of    Treasury    Regulation    ss.
1.1031(k)-(1)(g)(4))  their  rights  under the JACOR  Agreement  to acquire  the
Kansas  City  Assets in  exchange  for the  relinquishment  of the  Relinquished
Stations and assign  their  rights to acquire the KLOU Assets  hereunder to such
qualified intermediary such that in the aggregate ARS effects the relinquishment
of the Relinquished  Stations and the ARS Cash Consideration in exchange for the
KLOU Assets in a transaction  that qualifies  under Section 1031 of the Internal
Revenue Code of 1986 as amended (the "Code"); and

         WHEREAS,  the parties have also agreed,  subject to the  conditions set
forth herein,  that Entercom shall  relinquish the KLOU Property in exchange for
the  Kansas  City  Property,  and its  allocable  share (if any) of the ARS Cash
Consideration, and ECI shall relinquish the KLOU


<PAGE>

Authorizations in exchange for the Kansas City Authorizations, and its allocable
share (if any) of the ARS Cash Consideration, in transactions that qualify under
Section 1031 of the Code.

                                    AGREEMENT

                  NOW, THEREFORE, in consideration of the mutual promises herein
contained and of the  representations  and warranties  hereinafter set forth and
for other good and valuable consideration,  the parties, intending to be legally
bound hereby, agree as follows:

                                    ARTICLE I

                                   DEFINITIONS


                  DEFINITIONS. As used in the Recitals and herein, the following
terms shall have the following respective meanings:

                  "Adjustment  Time"  shall mean with  respect to each  Station,
12:01:00 a.m.  current local time on the Closing Date in each of the  respective
markets where the Stations are located.

                  "Affiliate"  shall mean, with respect to any person or entity,
a person or entity controlling,  controlled by or under common control with such
person or entity.

                  "Agreement" shall mean this Asset Exchange Agreement.

                  "ARS"  shall mean the  corporation  identified  as such in the
Preamble of this Agreement.

                  "ARS Assets" shall mean all the Assets  relating to the Kansas
City Stations.

                  "ARS  Cash  Consideration"  shall  mean  the $7  million  cash
consideration  to be paid  by ARS and ARS  License  pursuant  to  Section  2.1.1
hereof.

                  "ARS License" shall mean the corporation identified as such in
the Preamble of this Agreement.

                  "Assets" shall mean the Property and all of the Authorizations
relating to the Station in question.

                  "Assignment  Applications" shall have the meaning set forth in
Section 7.1 hereof.

                  "Authorizations"  shall mean all of the licenses,  permits and
authorizations  granted by the  Commission  with respect to the operation of the
Station in question and all


                                        2

<PAGE>



applications for  Authorizations  for the Station in question pending before the
Commission once such applications have been granted by the Commission.

                  "Closing"   shall  mean  the  event  of  consummation  of  the
transactions  contemplated  by this Agreement as more fully described in Article
VIII of this Agreement.

                  "Closing  Date" shall mean the date  specified  for Closing in
Section 8.1 hereof.

                  "Code"  shall  mean the  Internal  Revenue  Code of  1986,  as
amended, and the applicable regulations issued thereunder.

                  "Collateral  Documents" shall mean the conveyancing  documents
required to vest in the  acquiring  party the Assets and Stations to be acquired
by it and any agreement,  certificate,  contract, instrument, notice, opinion or
other document required to be delivered or delivered  pursuant to the provisions
of this Agreement or any of the foregoing.

                  "Commission" shall mean the Federal Communications Commission.

                  "Contaminant"   shall   mean  and   include   any   pollutant,
contaminant,  hazardous material (as defined in any of the Environmental  Laws),
toxic  substances  (as defined in any of the  Environmental  Laws),  asbestos or
asbestos  containing  material,  urea formaldehyde,  polychlorinated  biphenyls,
regulated  substances  and  wastes,  radioactive  materials,  and  petroleum  or
petroleum by-products,  including crude oil or any fraction thereof, except that
"Contaminant"  shall not include small  quantities of maintenance,  cleaning and
emergency  generator fuel supplies customary for the operation of radio stations
and maintained in compliance with all Environmental  Laws in the Ordinary Course
of Business.

                  "Contracts"   shall   mean   all   agreements,   arrangements,
commitments and undertakings, written or oral, expressed or implied, relating to
the Station in question or any of them, or to the present or future operation of
the Station in question  except for any Leases,  including  without  limitation,
cash and trade contracts for broadcast advertising.

                  "Default" shall mean the material breach of a  representation,
warranty or covenant by a party hereto under this Agreement.

                  "ECI" shall mean the limited partnership identified as such in
the Preamble of this Agreement.

                  "Entercom"  shall mean the  corporation  identified as such in
the Preamble of this Agreement.

                  "Environmental  Laws"  shall  mean  and  include,  but  not be
limited  to,  any  applicable  federal,  state or local law,  statute,  charter,
ordinance, rule or regulation or any governmental agency interpretation,  policy
or guidance, including without limitation applicable safety/environmental/health
laws such as but not limited to the  Resource  Conservation  and Recovery Act of
1976, Comprehensive Environmental Response Compensation and Liability


                                        3

<PAGE>



Act, Federal Emergency  Planning and Community  Right-to-Know Law, the Clean Air
Act,  the Clean Water Act,  and the Toxic  Substance  Control Act, as any of the
foregoing have been amended, and any permit, order,  directive,  court ruling or
order or consent  decree  applicable  to or affecting  the Property or any other
property  (real or  personal)  used by or  relating  to the  Station in question
promulgated  or issued  pursuant to any  Environmental  Laws which  pertains to,
governs,  or  controls  the  generation,  storage,  remediation  or  removal  of
Contaminants or otherwise regulates the protection of health and the environment
including, but not limited to, any of the following activities,  whether on site
or off site: (i) the emission,  discharge,  release,  spilling or dumping of any
Contaminant into the air,  surface water,  ground water,  soil or substrata;  or
(ii) the use, generation,  processing,  sale,  recycling,  treatment,  handling,
storage,  disposal,  transportation,  labeling  or any other  management  of any
Contaminant.

                  "Environmental  Liabilities  and Costs" shall mean all Losses,
whether  direct or  indirect,  known or  unknown,  current or  potential,  past,
present or future,  imposed  by,  under or pursuant to  Environmental  Laws,  or
necessary to comply with the representations and warranties of a party hereunder
(without  regard  to any  knowledge  qualifier  contained  therein),  including,
without  limitation,  all such  Losses  related  to  remedial  actions,  and all
reasonable fees, disbursements and expenses of counsel,  experts,  personnel and
consultants  based on,  arising  out of or  otherwise  in  respect  of:  (i) the
ownership or  operation  of (x) a Station  through the Closing Date by the party
disposing of such Station  hereunder or any of its predecessors or Affiliates or
(y) any other assets,  equipment or facilities owned,  leased or operated at any
time by such party or any of its  predecessors  or Affiliates at any time;  (ii)
the  environmental  conditions  on,  under or above  (x) the  applicable  Assets
existing on the Closing Date or (y) any other  assets,  equipment or  facilities
owned,  leased or operated at any time by such  disposing  party,  or any of its
predecessors or Affiliates; and (iii) expenditures necessary to cause any of the
applicable  Assets being disposed of hereunder to be in compliance  with any and
all requirements of  Environmental  Laws in the most cost efficient manner as of
the Closing Date,  including,  without  limitation,  all  environmental  permits
issued under or pursuant to such Environmental Laws, and reasonably necessary to
make full economic use of the applicable Assets being disposed of hereunder.

                  "Final Order" shall mean an action by the Commission  upon any
application,  including without limitation the Assignment Applications,  for its
consent, approval or authorization,  which action has not been reversed, stayed,
enjoined, set aside, annulled or suspended, and with respect to which action, no
timely  protest,  petition to deny,  petition for rehearing or  reconsideration,
judicial or  administrative  appeal or request  for stay is  pending,  and as to
which  action the time for filing of any such  protest,  petition,  judicial  or
administrative  appeal or request and any period during which the Commission may
reconsider or review on its own authority have expired.

                  "JACOR"  shall  mean  collectively   Citicasters  Co.,  Regent
Broadcasting of Kansas City, Inc. and Regent Licensee of Kansas City, Inc.

                  "JACOR  Agreement"  shall  mean the Asset  Exchange  Agreement
dated June 19, 1997 entered into by and among ARS, ARS License, Citicasters Co.,
Regent  Broadcasting  of Kansas City,  Inc. and Regent  Licensee of Kansas City,
Inc., as amended from time to time.


                                        4

<PAGE>



                  "JACOR  Closing"  shall mean the  closing of the  transactions
contemplated by the JACOR Agreement.

                  "Kansas   City   Authorizations"   shall   mean   all  of  the
Authorizations relating to the Kansas City Stations.

                  "Kansas  City  Contracts"  shall  mean  all of  the  Contracts
relating to the Kansas City Stations.

                  "Kansas City Leases" shall mean all of the Leases  relating to
the Kansas City Stations.

                  "Kansas City Property" shall mean all of the Property relating
to the Kansas City Stations.

                  "Kansas  City   Stations"   shall  mean:   (i)  the  frequency
modulation  (FM) radio  broadcast  station  licensed by the Commission to Kansas
City,  Kansas  broadcasting on 98.1 Mhz and currently  assigned the call letters
KUDL  ("KUDL");  (ii) the  amplitude  modulation  (AM) radio  broadcast  station
licensed by the Commission to Kansas City, Missouri  broadcasting on 610 Khz and
currently assigned the call letters WDAF ("WDAF").

                  "KLOU"  shall  mean  the  frequency   modulation   (FM)  radio
broadcast station licensed by the Commission to St. Louis, Missouri broadcasting
on 103.3 Mhz and currently assigned the call letters KLOU.

                  "KLOU Assets" shall mean all of the Assets relating to KLOU.

                  "KLOU  Authorizations"  shall  mean all of the  Authorizations
relating to KLOU.

                  "KLOU Contracts"  shall mean all of the Contracts  relating to
KLOU.

                  "KLOU Leases" shall mean all of the Leases relating to KLOU.

                  "KLOU  Property"  shall mean all of the  Property  relating to
KLOU.

                  "KLOU Studio  Subleases" shall mean the sublease of studio and
office space entered into by  Westinghouse  and  Entercom,  effective on May 30,
1997 and having a term through and including June 29, 1998.

                  "Leases"   shall   mean  all   agreements,   arrangements   or
commitments and undertakings,  written or oral, express or implied,  for the use
or  occupation  of any real or personal  property  used in the  operation of the
Station in question.

                  "Loss"  shall  have the  meaning  set forth in  Section  9.4.1
hereof.



                                        5

<PAGE>

                  "Ordinary  Course of Business"  shall mean the routine conduct
of the business of the Station in question (excluding  extraordinary,  irregular
or abnormal  transactions)  on a basis  consistent with the regular  practice of
such Station since December 31, 1996.

                  "Permitted  Encumbrances"  shall mean:  (i)  encumbrances  for
taxes,  assessments or governmental  charges or levies which are not yet due and
payable, or that, subject to adequate security for payment, are being contested;
(ii) easements,  rights of way, or other  encumbrances of record or disclosed in
this Agreement  that do not have a material  adverse effect on the Assets or the
operation of the Station in  question;  and (iii)  encumbrances  imposed by law,
such as materialmen's,  mechanic's, carrier's, workmen's or repairmen's liens or
other similar encumbrances arising in the Ordinary Course of Business,  securing
obligations  that are not overdue and that are not  related to  obligations  for
borrowed money.

                  "Property"  shall  mean  all of the  tangible  and  intangible
property (other than the  Authorizations),  whether real, personal or mixed, and
all rights and  interests  which are or were at any time since May 1, 1997 used,
necessary, connected or associated with or related to the Station in question or
the present or future  operation of that Station  including:  (i) the assets and
property  listed in Schedules  4.1.4 and 4.2.4 hereto  respectively as "Included
Assets"; (ii) all of the rights,  titles, and interests under the Leases and the
Contracts  relating  to  the  Station  in  question;  (iii)  the  call  letters,
copyrights,  trademarks  and other  intellectual  property  associated  with the
Station in question;  (iv)  originals or, if  unavailable,  photocopies,  of all
files, records, studies, data, lists, filings, general accounting records, books
of account,  computer programs and software and logs, of every kind, relating to
the  operations  or  business  of the  Station in  question;  and (v) all of the
disposing party's rights under  manufacturers' and vendors'  warranties relating
to items  included  in the Assets of the  Station  in  question;  but  excluding
therefrom those assets listed on Schedules  4.1.4 and 4.2.4 hereto  respectively
as "Excluded Property."

                  "Required  Consents"  shall mean the consents of third parties
to the Leases and  Contracts  that are required for the  assignment  thereof and
that   are   identified   on  the   Schedules   hereto   as   "Material   Leases
(Contracts)-Consent to Assign Required."

                  "Station  or  Stations"  shall mean KLOU and the  Kansas  City
Stations, both individually or in the aggregate.

                  "Westinghouse" is defined in the preamble to this Agreement.

                  "Westinghouse  Agreement"  is defined in the  preamble to this
Agreement.

                                   ARTICLE II
                                 ASSET EXCHANGE


         2.1 TRANSFER OF ASSETS.  Subject to the terms and  conditions set forth
in this Agreement, at the Closing:



                                        6

<PAGE>



                  2.1.1 ARS and ARS  License  shall (i)  transfer,  assign,  and
deliver or cause to be  transferred,  assigned and delivered to Entercom and ECI
the ARS Assets free and clear of all liens and encumbrances other than Permitted
Encumbrances,  and Entercom and ECI shall  acquire and receive same from ARS and
ARS  License;  and (ii)  deliver to Entercom and ECI cash in the amount of Seven
Million Dollars ($7,000,000) (the "ARS Cash Consideration") and Entercom and ECI
shall receive same from ARS and ARS License. The ARS Cash Consideration shall be
paid by wire transfer of immediately  available  funds at Closing to the account
designated by Entercom at or prior to Closing.

                  2.1.2 Entercom and ECI shall  transfer,  assign and deliver or
cause to be transferred,  assigned and delivered to ARS and ARS License the KLOU
Assets  free and  clear of all  liens  and  encumbrances  other  than  Permitted
Encumbrances,  and ARS and ARS  License  shall  acquire  and  receive  same from
Entercom and ECI.

         2.2 ALLOCATION OF VALUES.

                  2.2.1 The fair  market  value of the ARS  Assets  and the KLOU
Assets  shall be  determined  and  allocated  on the  basis of  appraisals  (the
"Appraisals")  prepared by Bond & Pecaro, whose fees and expenses shall be borne
equally by ARS and  Entercom.  The parties shall direct Bond & Pecaro to deliver
the Appraisals  within 60 days from the execution hereof and to set forth in the
Appraisals  the fair market  value of each asset  included in the ARS Assets and
the KLOU Assets.
                  2.2.2 Within 30 days of receipt of the Appraisals, the parties
shall  prepare a schedule  (the  "Section  1031  Schedule")  that sets forth the
"exchange  groups"  and  "residual  groups"  (as each  quoted term is defined by
Treas.  Reg.  Section  1.1031(j)),  together with each asset included in the ARS
Assets and KLOU Assets that belongs to the relevant  exchange  group or residual
group.  The parties shall cooperate in good faith to resolve any issues relating
to the Section 1031  Schedule in order to agree on a single,  final Section 1031
Schedule.

                  2.2.3 Each party,  as  necessary,  shall prepare IRS Form 8594
and IRS Form 8824  reflecting the fair market value of the Assets it transferred
and received as  determined in accordance  with the above  provisions  and shall
forward such form to the other parties  within thirty (30) days after receipt of
the  Appraisals.  Each party,  as  necessary,  shall file with their  respective
federal  income tax returns for the tax year in which the Closing occurs the IRS
Form 8594 and IRS Form 8824 as prepared in accordance  with the foregoing.  Each
party shall deliver to the other parties  hereto a copy of the IRS Form 8594 and
IRS Form 8824 as filed with their  respective  federal  income tax return within
thirty  (30) days of the  filing  of such  return.  The  parties  hereto  hereby
covenant  and agree with each  other  that they will not take a position  on any
income tax return that is in any way inconsistent with the terms of this Section
2.2.

                  2.2.4 Notwithstanding the foregoing, ARS and ARS License shall
meet their  obligations  under this  Section 2.2 with respect to the Kansas City
Stations by exercising their


                                        7

<PAGE>



rights under Section 2.2 of the JACOR  Agreement,  as such rights pertain to the
Kansas  City  Stations,  for the  benefit of  Entercom  and ECI as  directed  by
Entercom and ECI.

         2.3 NON-ASSIGNABLE CONTRACTS.

                  2.3.1  Without  limiting or otherwise  affecting the rights of
any party  hereto,  to the  extent  that any  Contract  or Lease to be  assigned
pursuant to this Agreement is not capable of being assigned without the consent,
approval or waiver of a third person or entity,  nothing in this  Agreement will
constitute an assignment or require the assignment  thereof except to the extent
provided in this Section 2.3.

                  2.3.2 To the extent that the  consents,  approvals and waivers
referred  to in Section  2.3.1 to the  Contracts  and Leases  identified  in the
Schedules to this Agreement as "Material  Contracts (Leases) - Consent to Assign
Required" are required by such Contracts or Leases,  the party seeking to assign
such  Contracts  or Leases  hereunder  shall use its best efforts to obtain such
consents, approvals and waivers prior to the Closing Date.

                  2.3.3 With respect to all other such  consents,  approvals and
waivers,  each  party  hereto  shall use its best  efforts  to  obtain  all such
consents,  approvals and waivers prior to and, if the Closing occurs,  after the
Closing Date.

                                   ARTICLE III

                                   LIABILITIES


         3.1 ASSUMPTION OF  LIABILITIES  BY ARS AND ARS LICENSE.  From and after
the  Closing  Date,  ARS and ARS  License  shall  assume  and pay,  perform  and
discharge the following obligations and commitments relating to KLOU:

                  3.1.1 The liabilities and obligations  arising with respect to
events occurring after the Adjustment Time or accruing after the Adjustment Time
with  respect to the KLOU Leases that are  specifically  identified  on Schedule
4.2.5 as being assumed by ARS;

                  3.1.2 The liabilities and obligations  arising with respect to
events occurring after the Adjustment Time or accruing after the Adjustment Time
with respect to the KLOU Contracts that are specifically  identified in Schedule
4.2.6 as being assumed by ARS and ARS License and such additional KLOU Contracts
as are permitted to be entered into in accordance with Section 6.4 hereof;

                  3.1.3 The liabilities and obligations which arise with respect
to  events  occurring  after  the  Adjustment  Time or which  accrue  after  the
Adjustment Time with respect to the KLOU Assets and the operation of KLOU; and



                                        8

<PAGE>



                  3.1.4  All  taxes  and  assessments  (other  than  income  and
franchise  taxes of Entercom or ECI) that accrue on or, with respect to the KLOU
Assets and the operation of KLOU, after the Adjustment Time.

         3.2  ASSUMPTION OF  LIABILITIES BY ENTERCOM AND ECI. From and after the
Closing Date,  Entercom and ECI shall assume and pay,  perform and discharge the
following obligations and commitments relating to the Kansas City Stations:

                  3.2.1 The liabilities and obligations  arising with respect to
events occurring after the Adjustment Time or accruing after the Adjustment Time
with  respect to the Kansas  City  Leases that are  specifically  identified  on
Schedule 4.1.5 as being assumed by Entercom;

                  3.2.2 The liabilities  and obligations  with respect to events
occurring  after the Adjustment  Time or accruing after the Adjustment Time with
respect  to the  Kansas  City  Contracts  that are  specifically  identified  on
Schedule  4.1.6 as being  assumed by Entercom  and such  additional  Kansas City
Contracts as are  permitted to be entered  into in  accordance  with Section 6.2
hereof;

                  3.2.3 The liabilities and obligations which arise with respect
to  events  occurring  after  the  Adjustment  Time or which  accrue  after  the
Adjustment  Time with respect to the ARS Assets and the  operation of the Kansas
City Stations; and

                  3.2.4  All  taxes  and  assessments  (other  than  income  and
franchise taxes of ARS or ARS License) that accrue on or with respect to the ARS
Assets and the operation of the Kansas City Stations after the Adjustment Time.

         3.3 ASSUMPTION OF EMPLOYEE OBLIGATIONS.

                  (a) For purposes of determining  the amount of any entitlement
of any  employee of  Entercom at KLOU who is hired by ARS, on the one hand,  and
any employee of JACOR at the Kansas City  Stations who is hired by Entercom,  on
the  other  hand  (such  employees   referred  to  herein  as  the  "Transferred
Employees")  to vacation  leave,  ARS and  Entercom  will take into  account and
credit such employee's length of service with the Station's current owner (plus,
in the case of employees of Entercom and KLOU, such employee's length of service
with  Westinghouse  at KLOU) as well as with the party  acquiring  such  Station
hereunder.  With  respect  to any  accrued  but  unused  vacation  to which  any
Transferred  Employee is entitled under the vacation  policy  applicable to such
employee prior to the date such employee is hired by ARS or Entercom,  then such
party,  as the  case may be,  shall  allow  such  employee  to use such  accrued
vacation;  provided,  however,  that ARS or Entercom may disallow  such employee
from taking such accrued vacation,  provided,  that ARS or Entercom, as the case
may be,  shall be  liable  for and pay in cash to each such  employee  an amount
equal to such vacation time in accordance with the applicable  vacation  policy.
Neither ARS nor  Entercom  will assume any  obligations  under any sick leave or
severance policy of the other or JACOR,  except for obligations set forth in the
Contracts assumed or required to be assumed hereunder.



                                        9

<PAGE>



                  (b) No  provisions  of this  Agreement  shall create any third
party  beneficiary  rights of any  employee or former  employee  (including  any
beneficiary  or  dependent  thereof)  of  Entercom,  ARS or JACOR in  respect of
continued  employment (or resumed employment) with Entercom or ARS or in respect
of any other matter.

         3.4 OTHER  LIABILITIES.  Except as  specifically  assumed  by the other
parties  pursuant to Section 3.1, 3.2 or 3.3 hereof,  each party shall  promptly
and  completely  pay or  discharge  any and  all  taxes,  assessments,  accounts
payable,  commitments,   agreements,   undertakings,   claims,  debts,  demands,
obligations and liabilities  incurred or made by them, or caused by, arising out
of or resulting from any act or omission of its directors,  officers, employees,
agents, partners or independent contractors.

         3.5 LIMITATION. Except as specifically set forth in Section 3.1, 3.2 or
3.3, no party shall assume any  liabilities,  obligations  or commitments of any
other party.

                                   ARTICLE IV

                         REPRESENTATIONS AND WARRANTIES


         4.1 BY ARS AND ARS LICENSE.  Notwithstanding anything in this Agreement
to the  contrary,  the  representations  and  warranties  of each of ARS and ARS
License in Sections  4.1.5  through  4.1.27 shall be deemed to be limited to the
scope of the  representations  and warranties of JACOR to ARS and ARS License in
the JACOR Agreement.  Subject to the proceeding  qualification,  ARS and, to the
extent indicated below, ARS License hereby represent and warrant that:

                  4.1.1  CORPORATE   STANDING.   ARS  is  a  corporation,   duly
organized,  validly existing and in good standing under the laws of the State of
Delaware  and is  qualified to do business in the States of Missouri and Kansas.
ARS License is a  corporation,  duly  organized,  validly  existing  and in good
standing  under the laws of the State of  Delaware.  Each of ARS and ARS License
has full power and  authority to engage in the business in which it is presently
engaged.  ARS holds  all of the  issued  and  outstanding  capital  stock of ARS
License.

                  4.1.2  AUTHORIZATION OF AGREEMENT;  NO BREACH. Each of ARS and
ARS License has the necessary corporate power and authority to execute,  deliver
and perform this Agreement,  and such other agreements (including the Collateral
Documents) as are necessary to consummate the transactions  contemplated hereby,
and,  subject to the receipt of the consents and  approvals  required  elsewhere
herein,  this Agreement  constitutes the valid and binding obligation of each of
ARS and ARS License  enforceable  against each of them in accordance  with their
respective  terms,  except as limited by bankruptcy and  insolvency  laws and by
laws  affecting  the  enforcement  of  creditors  rights  generally or equitable
principles.  Assuming said  consents and  approvals  are obtained,  neither such
execution, delivery and performance nor compliance by any of ARS and ARS License
with the terms and provisions of the Agreement will conflict with or result in a
breach  or  violation  of any of the  terms,  conditions  or  provisions  of the
Articles  of  Incorporation  or  By-Laws  of any of  ARS or ARS  License  or any
judgment,


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<PAGE>



order,  injunction,  decree,  regulation  or  ruling  of any  court or any other
governmental  authority  to which any of ARS or ARS  License  is  subject or any
material agreement or contract to which any of them is a party or to which it is
subject, or constitute a material default thereunder.

                  4.1.3 QUALIFICATION.  To the knowledge of ARS and ARS License,
there are no facts relating to JACOR,  ARS or ARS License which could reasonably
be expected to cause Commission approval of the Assignment Applications relating
to the transfer of KLOU or the Kansas City  Stations to be denied or  materially
delayed  or which  could  reasonably  be  expected  to lead to the  filing  of a
material objection to such Assignment Applications.

                  4.1.4 ARS PROPERTY. The Kansas City Property to be transferred
hereunder,  listed  under the heading  "Included  Property"  on  Schedule  4.1.4
hereto,  constitutes  all of the  material  tangible  and  intangible  property,
whether  real,  personal or mixed,  other than the Kansas City Leases and Kansas
City Contracts,  that are used in and are necessary for the present operation of
the Kansas City Stations except for (i) property replaced in the Ordinary Course
of Business and (ii) those assets  specifically  listed on Schedule  4.1.4 under
the heading "Excluded Property."

                  4.1.5 KANSAS CITY LEASES.  ARS has  delivered to Entercom true
and correct  copies of all of the Kansas City Leases  listed on Schedule  4.1.5.
There are no other  material  Kansas City Leases for any items or  interests  of
real or personal  property or  associated  with the ARS Assets or the present or
future  operation  of the Kansas City  Stations  other than those  disclosed  on
Schedule 4.1.5 hereto.

                  4.1.6  KANSAS CITY  CONTRACTS.  ARS has  delivered to Entercom
true and correct  copies of all Kansas City  Contracts  listed on Schedule 4.1.6
hereto,  except for  Contracts  for the sale or trade of broadcast  advertising.
There are no material Kansas City Contracts except the Contracts for the sale of
broadcast advertising now in effect,  written or oral, express or implied, which
in any way  affect  the ARS Assets or the  present  or future  operation  of the
Kansas City Stations other than those disclosed on Schedule 4.1.6 hereto.

                  4.1.7 INTELLECTUAL  PROPERTY.  Schedule 4.1.7 hereto lists all
material trademarks and copyrights relating to the operations of the Kansas City
Stations and the extent to which the same have been duly registered with Federal
or State governmental agencies.

                  4.1.8 TITLE TO PROPERTY. Except for the Permitted Encumbrances
and as disclosed on Schedule  4.1.8 hereto,  ARS and ARS License at Closing will
(i) have good and  marketable  title to the real  property  owned by JACOR  that
comprises  part of the Kansas  City  Property,  (ii) have  valid and  subsisting
leasehold interests in the Leases that comprise part of the Kansas City Property
and (iii)  own and have good and  merchantable  title to all  material  items of
personal  property that comprise  part of the Kansas City  Property.  Except for
Permitted Encumbrances and items disclosed on Schedule 4.1.8, none of the Kansas
City Property is subject to any mortgage,  conditional sale agreement,  security
interest,  lease,  lien,  hypothecation,   pledge,   encumbrance,   restriction,
liability,  charge,  claim  or  imperfection  of  title  that  would  materially
adversely  effect the  continued  use of the  Kansas  City  Property.  Except as
otherwise


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<PAGE>



provided  on Schedule  4.1.8,  all items  disclosed  on such  Schedule  shall be
removed or satisfied by ARS or ARS License at or before Closing.

                  4.1.9 NO DEFAULTS. JACOR has complied in all material respects
with all of the terms of the Kansas  City  Contracts  and the Kansas City Leases
and such Kansas City Contracts and Kansas City Leases are  enforceable by JACOR,
in accordance with their  respective  terms,  except as such  enforcement may be
limited by applicable  bankruptcy and similar laws affecting the  enforcement of
creditors' rights and general equitable  principles affecting the enforcement of
equitable  remedies,   (including  within  said  equitable   remedies,   without
limitation,  the remedy of specific  performance).  No event has occurred  which
with the  passage  of time or the giving of notice or both  would  constitute  a
material  default by JACOR under the Kansas City Contracts.  To the knowledge of
ARS and ARS License,  all other parties to the Kansas City  Contracts and Kansas
City Leases have complied in all material  respects with the provisions  thereof
and no event has occurred which with the passage of time or the giving of notice
or both would constitute a material default by any such other party  thereunder.
In  addition,  neither ARS nor ARS License  (unless  waived or  consented  to in
writing by JACOR) is in  material  breach of or has  defaulted  under any of the
terms of the JACOR Agreement.

                  4.1.10  AUTHORIZATIONS  AND APPLICATIONS.  All  Authorizations
necessary to the lawful  operations  of the Kansas City Stations as they are now
conducted  or proposed to be conducted on or prior to the Closing Date have been
granted and issued by the Commission to JACOR and are listed on Schedule  4.1.10
attached hereto and are now in full force and effect.  Prior to Closing,  except
as set forth on  Schedule  4.1.10,  ARS  License  will be  entitled  to have all
Authorizations necessary to the lawful operations of the Kansas City Stations as
they are now  conducted  or proposed to be  conducted on or prior to the Closing
Date to be granted and issued by the  Commission  to ARS  License.  There are no
applications  of ARS,  ARS  License  or of JACOR  relating  to the  Kansas  City
Stations  pending with the Commission  except as listed on such Schedule 4.1.10.
Except as may be set forth on Schedule 4.1.10,  JACOR has performed and complied
in all material respects with all of the terms and conditions of the Kansas City
Authorizations,  the Communications Act and all applicable rules and regulations
of the  Commission.  Except as  listed on  Schedule  4.1.10 no  proceedings  are
pending or to the knowledge of ARS and ARS License threatened,  which may result
in the revocation, modification,  non-renewal or suspension of any of the Kansas
City Authorizations,  the denial of any pending applications,  the issuance of a
cease  and  desist  order,  or the  imposition  of any other  administrative  or
judicial sanction to which the Kansas City Stations or the ARS Assets are or may
be  subject.  Except as set forth in Schedule  4.1.10,  all  ownership  reports,
renewal  applications and other material reports and documents in respect of the
Kansas City Stations required to be filed by ARS, ARS License and JACOR with the
Commission have been filed, and all such reports, applications and documents are
true and  correct  in all  material  respects.  The  Kansas  City  Stations  are
identified  by their  presently  assigned call letters and are operated at their
maximum  authorized  power and height on their  assigned  frequency.  The public
inspection files for the Kansas City Stations are in substantial compliance with
the regulations of the Commission relating thereto.

                  4.1.11   PERMITS   AND   LICENSES.    In   addition   to   the
Authorizations,  ARS,  and ARS  License  will be  entitled  to hold and JACOR at
Closing will hold all other


                                       12

<PAGE>



governmental  permits and  licenses  necessary  for the lawful  operation of the
Kansas City Stations as now conducted.  At Closing, all terms,  restrictions and
requirements  of such  permits  and  licenses  have  been  complied  with in all
material  respects and none of ARS, ARS License or JACOR is in default of any of
same in any material respect, except as set forth in Schedule 4.1.11.

                  4.1.12  COMPLIANCE WITH LAWS.  Except as disclosed on Schedule
4.1.12,  JACOR has complied in all material  respects  with all orders (to which
JACOR is a party or is subject),  and applicable laws, rules, and regulations of
all  federal,  state and local  authorities  with  respect to the ARS Assets and
operation  of the Kansas City  Stations.  ARS and ARS License are not in default
with respect to or in  violation  of: (a) any  judgment,  order,  injunction  or
decree to which ARS or ARS License is a party or is subject;  or (b) any rule or
regulation of any court,  administrative agency or other governmental authority,
in  either  case in any  respect  material  to this  transaction.  All  material
reports,  returns and other documents which relate in any way to the Kansas City
Stations  and which were  filed by ARS or ARS  License  with any  administrative
agency or governmental  authority are true, correct and complete in all material
respects  and to the  knowledge of ARS and ARS  License,  all  material  report,
returns and other  documents which relate in any way to the Kansas City Stations
and which  were  filed by JACOR  with any  governmental  agency or  governmental
authority are true, correct and complete in all material respects.

                  4.1.13 LITIGATION AND CLAIMS.  Except as disclosed in Schedule
4.1.13  hereto  and  except  for  rulemaking  proceedings  applicable  to  radio
broadcast  stations  generally,  no  litigation,  proceeding or  controversy  is
pending or to the  knowledge  of ARS and ARS  License  threatened,  which  might
materially affect any of the ARS Assets, the right or power of JACOR, ARS or ARS
License to transfer the same, the ownership, possession, use or resale of any of
the ARS Assets,  or the  operation of the Kansas City Stations by Entercom or by
any  assignee of Entercom  and neither ARS nor ARS License has  knowledge of any
facts that might give rise to any such  litigation,  proceeding,  controversy or
claim.  No claim has been made or asserted  against  ARS, ARS License or, to the
knowledge of ARS or ARS License, against JACOR, material to this transaction.

                  4.1.14  LABOR  RELATIONS.  In all  respects  material  to this
transaction,  ARS, ARS License and JACOR have complied with all applicable laws,
rules and  regulations  pertaining to the employment of labor,  including  those
relating  to  wages,  hours,  collective  bargaining,  and  the  payment  of  or
withholding of taxes,  and each of ARS, ARS License and, to the knowledge of ARS
and ARS License,  JACOR has withheld all amounts required by law or agreement to
be withheld from the wages or salaries of their employees and are not liable for
any arrears of wages or any tax or  withholding or any penalties or interest for
failure to comply with any of the foregoing; and except as disclosed on Schedule
4.1.14,  there  are  no  collective   bargaining   agreements  relating  to  the
relationship  between any employee of ARS, ARS License or JACOR  employed at the
Kansas City Stations.  In addition,  except as set forth on Schedule 4.1.14, ARS
and ARS License have no knowledge of any union organizing  activities in the one
year period  preceding  the date of this  Agreement  involving or targeting  any
employees of ARS, ARS License or JACOR  employed at the Kansas City Stations not
already covered by a collective bargaining agreement.


                                       13

<PAGE>

                  4.1.15 EMPLOYMENT  CONTRACTS.  Except as disclosed on Schedule
4.1.15  hereto,  there  are no  written  contracts  for  the  employment  of any
personnel  relating  to the Kansas  City  Stations  and,  except as  provided by
applicable law or in the Contracts  disclosed on Schedule 4.1.15,  all employees
of ARS,  or ARS  License or JACOR  employed  at the  Kansas  City  Stations  are
employed on an "at will" basis and may be  terminated  without cause at any time
and with not more than thirty (30) days notice.

                  4.1.16 DAMAGE TO ASSETS. As of the date of the JACOR Agreement
and to the  knowledge  of ARS and ARS License as of the date of this  Agreement,
none of the Kansas City Property has been  materially and adversely  affected in
any way as a result  of fire,  explosion,  earthquake,  accident,  fraud,  rain,
storm, drought, Act of God or public enemy or any other casualty, whether or not
covered by insurance.

                  4.1.17   EMPLOYEE BENEFIT AND RETIREMENT PLANS.  Listed
on Schedule 4.1.17 (with a brief description  thereof) are the "employee pension
benefit plans" and "employee welfare benefit plans" (as defined  respectively in
Sections 3(2) and 3(l) of the Employee  Retirement  Income Security Act of 1974,
as amended  ("ERISA")),  which JACOR  maintains  on behalf of  employees  at the
Kansas  City  Stations.  In all  respects  material  to  this  transaction,  all
"employee  pension benefit plans" and "employee welfare benefit plans" listed on
Schedule  4.1.17  hereto  comply in all material  respects  with all  applicable
requirements of law and regulation  including ERISA. None of ARS, ARS License or
JACOR  has  incurred  or  reasonably   expects  to  incur  (either  directly  or
indirectly, including as a result of any of the transactions contemplated hereby
or any indemnification obligation) any liability (including, without limitation,
withdrawal  liability) that could become a liability of Entercom or ECI under or
pursuant  to Title I or IV of  ERISA or the  penalty,  excise  tax or joint  and
several liability  provisions of the Code relating to employee benefit plans and
no event,  transaction or condition has occurred or exists which could result in
any  such  liability.  ARS,  ARS  License  and  JACOR  have  made  all  required
contributions to all multiemployer  plans within the meaning of Section 3(37) of
ERISA.

                  4.1.18  EMPLOYEES.  ARS  and  ARS  License  have  provided  to
Entercom a listing  of the name,  salary or  compensation,  and job title of all
employees  employed  at the Kansas  City  Stations,  in each case as of June 30,
1997. Except as otherwise  provided in Section 3.3 hereof,  ARS, ARS License and
JACOR shall be responsible  for and pay to their employees all accrued or earned
compensation and benefits of any kind,  including without limitation  severance,
accrued vacation or other termination  benefits which result from the employment
with and termination thereof by ARS, ARS License or JACOR prior to the Closing.

                  4.1.19  TRADE OR BARTER.  Schedule  4.1.19  sets forth a true,
complete  and  accurate  description   (including  obligations  and  liabilities
remaining  thereunder) of all contracts for the sale of broadcast advertising on
a trade or barter basis that  individually  involve,  or may involve,  valued in
accordance with U.S. generally accepted accounting procedures, more than $500 in
obligations  remaining  thereunder  as of the date of this  Agreement  in money,
property or services or a remaining term in excess of two (2) months.



                                       14

<PAGE>

                  4.1.20 ENVIRONMENTAL  COMPLIANCE,  POLYCHLORINATED  BIPHENYLS,
ASBESTOS  AND  OTHER  TOXIC OR  HAZARDOUS  SUBSTANCES.  Except as  disclosed  on
Schedule  4.1.20,  to the knowledge of ARS and ARS License,  (a) none of the ARS
Property contains (i) any friable asbestos, polychlorinated biphenals or any PCB
contaminated oil; (ii) any Contaminants; or (iii) any underground storage tanks;
(b) no underground  storage tank disclosed on Schedule 4.1.20 has leaked and has
not been  remediated  or leaks and each such tank is in  substantial  compliance
with all  applicable  Environmental  Laws; and (c) all of the ARS Property is in
substantial compliance with all applicable Environmental Laws.

                  4.1.21   FINANCIAL  AND  OTHER   INFORMATION.   All  financial
information  concerning  the ARS  Assets  provided  to  Entercom  and  listed on
Schedule  4.1.21  fairly  present  the  financial  condition  of the Kansas City
Stations as of the respective  dates thereof and the results of operation of the
Kansas City Stations for the respective period then ended. Except solely for the
obligations  and  liabilities  to be assumed by  Entercom  and ECI  pursuant  to
Section  3.2,  there  will,  at  the  time  of  Closing,  be no  obligations  or
liabilities of any nature, whether accrued,  absolute,  contingent or otherwise,
relating to ARS, ARS License,  JACOR, the ARS Assets or the Kansas City Stations
which  could,  after the  Closing,  result in any form of  transferee  liability
against  either  Entercom  or ECI or subject any of the ARS Assets or any of the
Kansas  City  Stations  to any  lien or  otherwise  affect  the  full,  free and
unencumbered use of the ARS Assets and the ownership and operation of the Kansas
City Stations by Entercom and ECI.

                  4.1.22   CONDITION  OF  EQUIPMENT.   Transmission  and  studio
equipment and other equipment  (mechanical  and electrical)  included within the
Kansas City Property, is, and will be as of the Closing Date, in a state of good
repair and maintenance and is in good operating condition,  normal wear and tear
excepted,  has been maintained in a manner  consistent  with generally  accepted
standards of good  engineering  practice and  currently  permits the Kansas City
Stations to be operated in accordance with all current Commission requirements.

                  4.1.23   REAL PROPERTY.

                  (a) Schedule  4.1.23  contains a true and complete list of all
owned  and  leased  real  property  used in the  operation  of the  Kansas  City
Stations.  Except as  disclosed  on Schedule  4.1.23,  there are no  outstanding
options or rights of first refusal to purchase or sublease such real property or
any  portion  thereof or  interest  therein.  The real  property  identified  on
Schedule  4.1.23 has vehicular  access to a road and is supplied with  utilities
and other services  necessary for the operation of the Kansas City Stations.  No
real  property  other than that listed on Schedule  4.1.23 or listed on Schedule
4.1.4  pertaining  to Excluded  Property is used in, held for use in  connection
with or  necessary  for the  conduct  of,  the  operations  of the  Kansas  City
Stations.  The transmitting  towers,  related  improvements,  guy anchors of the
transmitting  towers,  and  the  transmitter  buildings  used  by  JACOR  in the
operation  of the  Kansas  City  Stations  are  located  entirely  on such  real
property.  Except as may be set forth on Schedule  4.1.23,  the  improvements of
JACOR upon such real property and the current use and operation of such premises
by  JACOR  conform  in  all  material  respects  to all  restrictive  covenants,
conditions,  easements,  building,  subdivision  and similar  codes and federal,
state and local laws,


                                       15

<PAGE>


regulations,  rules, orders and ordinances and none of ARS or JACOR has received
any  notice  of any  violation  or  claimed  violation  of any such  restrictive
covenant,  condition or easement, or any building,  subdivision or similar code,
or any federal, state or local law, regulation,  rule, order or ordinance which,
either individually or in the aggregate, could have a material adverse effect on
the assets of the Kansas City Stations.  There is no pending or, to ARS's or ARS
Licenses knowledge,  threatened condemnation or other legal proceeding or action
of any kind relating to such real property  and/or title  thereto.  There are no
latent structural,  mechanical or other defects of material  significance in the
real  property  which could  reasonably  be expected to have a material  adverse
effect on the  assets,  business  or  financial  condition  of the  Kansas  City
Stations.  All improvements upon the real property identified on Schedule 4.1.23
are in good operating condition and repair,  normal wear and tear excluded.  ARS
has no knowledge and has received no notice (i) of any pending,  threatened,  or
contemplated  action to take by  eminent  domain or  otherwise  to  condemn  any
portion  of the  real  property  or  interest  therein  or (ii)  of any  levied,
threatened or proposed  assessments for public  improvements with respect to the
real property.

                  (b) The ground  system for WDAF is complete  and  contains the
requisite number of ground radials. The ground system for WDAF is accessible and
fully  contained  within real property  that, as of the JACOR  Closing,  will be
entitled to be owned by ARS and ARS License.

                  4.1.24 NO MATERIAL ADVERSE  CONDITION.  ARS and ARS License do
not know of any undisclosed condition specifically applicable to the Kansas City
Stations  that exists on the date of this  Agreement,  including but not limited
to, pending or threatened litigation,  that is likely to have a material adverse
effect on the ARS Assets or  financial  condition  of the Kansas City  Stations,
other  than (i)  changes  in the  Ordinary  Course  of  Business,  (ii)  general
economic,  business or  financial  conditions  or trends,  and (iii)  conditions
generally affecting radio stations.

                  4.1.25 PAYMENT OF TAXES.  ARS, ARS License and JACOR have, and
as of the Closing Date will have,  paid and discharged  all taxes,  assessments,
excises  and other  levies  which  are due  which,  if due and not  paid,  would
interfere with  Entercom's or ECI's enjoyment or use of the ARS Assets or result
in a lien, charge or encumbrance thereon,  excepting those taxes being contested
in good faith and such taxes, assessments and other levies which will not be due
until or after the Closing Date and which are either to be prorated  between the
parties pursuant to the provisions of Section 8.2 hereof,  paid by JACOR or paid
by ARS or ARS License pursuant to Section 6.1.7.

                  4.1.26  REQUIRED  CONSENTS.  The only approvals or consents of
persons  or  entities  not a  party  to  this  Agreement  that  are  legally  or
contractually  required to be obtained by ARS or ARS License in connection  with
the  consummation of the  transactions  contemplated by this Agreement are those
that are (i) set forth on Schedules 4.1.5 and 4.1.6 and (ii) those  contemplated
by Section 5.1.

                  4.1.27 MATERIAL  STATEMENTS AND OMISSIONS;  ABSENCE OF EVENTS.
No representation or warranty made by ARS or ARS License contained in this


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<PAGE>



Agreement, any ARS or ARS License Schedule or any certificate, document or other
instrument  furnished or to be  furnished by ARS or ARS License  pursuant to the
provisions  hereof  contains or will contain any untrue  statement of a material
fact or omits or will  omit to state  any  material  fact  required  to make any
statement  contained  herein or  therein  not  misleading.  Neither  ARS nor ARS
License is aware of any impending or contemplated  event that would cause any of
the  representations  and warranties  made by it in this Article not to be true,
correct and complete on the date of such event as if made on that date.

         4.2 BY ENTERCOM AND ECI.  Entercom and, to the extent  indicated below,
ECI hereby represent and warrant that:

                  4.2.1  CORPORATE  STANDING.  Entercom is a  corporation,  duly
organized,  validly  existing  and  in  good  standing  under  the  laws  of the
Commonwealth of Pennsylvania and is qualified to do business in the Commonwealth
of  Pennsylvania  and the  States  of  Kansas  and  Missouri.  ECI is a  limited
partnership  formed in accordance  with,  validly  existing and in good standing
under the laws of the Commonwealth of Pennsylvania. Each of Entercom and ECI has
full power and  authority  to engage in the  business  in which it is  presently
engaged.  Entercom is the sole  general  partner of ECI and holds a  ninety-nine
percent (99%) interest in ECI.

                  4.2.2 AUTHORIZATION OF AGREEMENT;  NO BREACH. Entercom has the
necessary  corporate  power and  authority,  on behalf  of  itself  and ECI,  to
execute, deliver and perform this Agreement and such other agreements (including
the  Collateral  Documents)  as are  necessary to  consummate  the  transactions
contemplated  hereby,  and, subject to the receipt of the consents and approvals
required  elsewhere  herein,  this Agreement  constitutes  the valid and binding
obligation of Entercom and ECI,  enforceable  against each of them in accordance
with their terms,  except as limited by bankruptcy  and  insolvency  laws and by
laws  affecting  the  enforcement  of  creditors  rights  generally or equitable
principles.  Assuming said  consents and  approvals  are obtained,  neither such
execution,  delivery and performance nor compliance by Entercom and ECI with the
terms and  provisions of the Agreement  will conflict with or result in a breach
or violation of any of the terms,  conditions  or  provisions of the Articles of
Incorporation  or Bylaws of Entercom,  or the Limited  Partnership  Agreement of
ECI, or any judgment,  order,  injunction,  decree,  regulation or ruling of any
court or any other governmental authority to which Entercom or ECI is subject or
any  material  agreement  or contract to which  Entercom or ECI is a party or to
which it is subject, or constitute a material default thereunder.

                  4.2.3 QUALIFICATION.  To Entercom's and ECI's knowledge, there
are no facts  relating to Entercom or ECI which could  reasonably be expected to
cause  Commission  approval  of  the  Assignment  Applications  relating  to the
transfer of KLOU or the Kansas City Stations to be denied or materially  delayed
or which  could  reasonably  be  expected  to lead to the  filing of a  material
objection to such Assignment Applications.

                  4.2.4  KLOU  PROPERTY.  The KLOU  Property  to be  transferred
hereunder,  listed  under the heading  "Included  Property"  on  Schedule  4.2.4
hereto,  constitutes  all of the  material  tangible  and  intangible  property,
whether real,  personal or mixed, other than the KLOU Leases and KLOU Contracts,
used in the operation of KLOU except for (i) property replaced


                                       17

<PAGE>



in the Ordinary Course of Business and (ii) those assets  specifically listed on
Schedule 4.2.4 under the heading "Excluded Property."

                  4.2.5 KLOU  LEASES.  Entercom  has  delivered  to ARS true and
correct copies of all KLOU Leases listed on Schedule 4.2.5 hereto.  There are no
other  material  KLOU  Leases  for any items or  interests  of real or  personal
property or associated  with the KLOU Assets or the present or future  operation
of KLOU other than those disclosed on Schedule 4.2.5 hereto.

                  4.2.6 KLOU  CONTRACTS.  Entercom has delivered to ARS true and
correct copies of all KLOU Contracts listed on Schedule 4.2.6 hereto, except for
Contracts for the sale or trade of broadcast advertising.  There are no material
KLOU  Contracts  except  the  Contracts  for the  sale  or  trade  of  broadcast
advertising now in effect, written or oral, express or implied, which in any way
affect the KLOU  Assets or the  present or future  operation  of KLOU other than
those disclosed on Schedule 4.2.6 hereto.

                  4.2.7 INTELLECTUAL  PROPERTY.  Schedule 4.2.7 hereto lists all
material  trademarks  and  copyrights  relating to the operation of KLOU and the
extent  to which  the same  have been  duly  registered  with  Federal  or State
governmental agencies.

                  4.2.8 TITLE TO PROPERTY. Except for the Permitted Encumbrances
and as disclosed on Schedule  4.2.8 hereto,  Entercom and ECI will (i) have good
and  marketable  title  to the real  property  that  comprises  part of the KLOU
Property,  (ii) have valid and subsisting leasehold interests in the leases that
comprise part of the KLOU Property and (iii) own and have good and  merchantable
title to all material items of personal  property that comprise part of the KLOU
Property.  Except for  Permitted  Encumbrances  and items  disclosed on Schedule
4.2.8,  none of the KLOU Property is subject to any mortgage,  conditional  sale
agreement,  security interest, lease, lien, hypothecation,  pledge, encumbrance,
restriction,  liability,  charge,  claim or  imperfection  of title  that  would
materially  adversely affect the continued use of the KLOU Property as currently
used.  Except as otherwise  provided on Schedule  4.2.8,  all items disclosed on
such Schedule shall be removed or satisfied by Entercom at or before Closing.

                  4.2.9 NO  DEFAULTS.  Except as  disclosed  on Schedule  4.2.9,
Entercom and ECI has  complied in all material  aspects with all of the terms of
the KLOU  Contracts and the KLOU Leases and such KLOU  Contracts and KLOU Leases
are  enforceable  by Entercom and ECI, as applicable,  in accordance  with their
respective  terms,  except as such  enforcement  may be  limited  by  applicable
bankruptcy and similar laws affecting the  enforcement of creditors'  rights and
general  equitable  principles  affecting the enforcement of equitable  remedies
(including  within said  equitable  remedies  without  limitation  the remedy of
specific  performance).  No event has occurred which with the passage of time or
the giving of notice or both would  constitute a material default by Entercom or
ECI under the KLOU  Contracts.  To the  knowledge of Entercom and ECI, all other
parties to the KLOU  Contracts  and KLOU  Leases have  complied in all  material
respects with the  provisions  thereof and no event has occurred  which with the
passage  of time or the  giving of notice or both  would  constitute  a material
default by any such other party thereunder.



                                       18

<PAGE>



                  4.2.10  AUTHORIZATIONS  AND APPLICATIONS.  All  Authorizations
necessary to the lawful operations of KLOU as it is now conducted or proposed to
be conducted on or prior to the Closing Date have been granted and issued by the
Commission to ECI, which is the authorized,  legal holder of such Authorization.
Such Authorizations are listed on Schedule 4.2.10 attached hereto and are now in
full force and effect.  There are no applications of Entercom or ECI relating to
KLOU  pending  with the  Commission  except as listed on such  Schedule  4.2.10.
Entercom and ECI have  performed and complied in all material  respects with all
of the terms and conditions of said KLOU Authorizations,  the Communications Act
and  all  applicable  rules,  regulations,  requirements  and  policies  of  the
Commission.  Except as listed on Schedule 4.2.10, no proceedings are pending or,
to the  knowledge  of  Entercom  or ECI,  threatened  which  may  result  in the
revocation,   modification,   non-renewal   or   suspension   of  any  of   said
Authorizations,  the denial of any pending applications, the issuance of a cease
and desist  order,  or the  imposition of any other  administrative  or judicial
sanction to which KLOU or the KLOU Assets may be subject. All ownership reports,
renewal applications and other material reports and documents in respect of KLOU
required to be filed by Entercom or ECI with the Commission  have been filed and
all such  reports,  applications  and  documents  are true  and  correct  in all
material respects. KLOU is identified by its presently assigned call letters and
is operated at its authorized  power and height on its assigned  frequency.  The
public  inspection  file  for  KLOU  is  in  substantial   compliance  with  the
regulations of the Commission relating thereto.

                  4.2.11   PERMITS   AND   LICENSES.    In   addition   to   the
Authorizations,  Entercom  or ECI at  Closing  will hold all other  governmental
permits and licenses necessary for the lawful operation of KLOU. At Closing, all
terms,  restrictions  and  requirements  of such permits and licenses  have been
complied with in all material  respects and neither  Entercom nor ECI will be in
default of any of same in any material respect.

                  4.2.12  COMPLIANCE WITH LAWS.  Except as disclosed on Schedule
4.2.12,  Entercom and ECI have complied in all material respects with all orders
(to which Entercom or ECI is a party or is subject), and applicable laws, rules,
and regulations of all federal,  state and local authorities with respect to the
KLOU  Assets and  operation  of KLOU.  With  respect to the  operation  of KLOU,
Entercom and ECI are not in default with respect to or in violation  of: (a) any
judgment,  order,  injunction  or  decree  to  which  Entercom  is a party or is
subject;  or (b) any rule or regulation of any court,  administrative  agency or
other  governmental  authority,  in either case in any respect  material to this
transaction.  All material reports,  returns and other documents which relate in
any  way  to the  KLOU  Assets  and  which  were  filed  by  Entercom  with  any
administrative  agency or governmental  authority are true, correct and complete
in all material respects.

                  4.2.13 LITIGATION AND CLAIMS.  Except as disclosed in Schedule
4.2.13  hereto  and  except  for  rulemaking  proceedings  applicable  to  radio
broadcast  stations  generally,  no  litigation,  proceeding or  controversy  is
pending or, to the  knowledge  of any officer of  Entercom  and ECI,  threatened
which might affect any of the KLOU Assets, Entercom's or ECI's right or power to
transfer the same, the ownership,  possession,  use or resale of any of the KLOU
Assets,  or the operation of the KLOU by ARS or by any assignee of ARS and there
is no basis known to Entercom or ECI for any such litigation, proceeding,


                                       19

<PAGE>



controversy or claim. No claim has been made or asserted against Entercom or ECI
material to this transaction.

                  4.2.14  LABOR  RELATIONS.  In all  respects  material  to this
transaction,   Entercom  has  complied  with  all  applicable  laws,  rules  and
regulations  pertaining to the employment of labor,  including those relating to
wages, hours,  collective bargaining and the payment of or withholding of taxes,
and Entercom and ECI with respect to the  operation of KLOU,  have  withheld all
amounts  required by law or agreement to be withheld  from the wages or salaries
of their  employees  and are not liable  for any  arrears of wages or any tax or
withholding  or any  penalties or interest for failure to comply with any of the
foregoing;  and except as disclosed on Schedule 4.2.14,  there are no collective
bargaining  agreements relating to the relationship between any employee of KLOU
and  Entercom or ECI. In  addition,  Entercom  and ECI have no  knowledge of any
union  organizing  activities in the one year period  preceding the date of this
Agreement  involving or  targeting  any  employees  employed at KLOU not already
covered by a collective bargaining agreement.

                  4.2.15   EMPLOYMENT CONTRACTS.  Except as disclosed on
Schedule 4.2.15 hereto, there are no written contracts for the employment of any
personnel at KLOU and,  except as provided by applicable law or in the Contracts
disclosed on Schedule 4.2.15,  all employees of Entercom or ECI employed at KLOU
are employed on an "at will" basis and may be terminated in accordance  with the
procedures set forth on Schedule 4.2.15.

                  4.2.16  DAMAGE TO  ASSETS.  As of the date of this  Agreement,
none of the KLOU Property has been materially and adversely  affected in any way
as a result  of fire,  explosion,  earthquake,  accident,  fraud,  rain,  storm,
drought,  Act of God or  public  enemy or any  other  casualty,  whether  or not
covered by insurance.

                  4.2.17   EMPLOYEE BENEFIT AND RETIREMENT PLANS.  Listed
on Schedule 4.2.17 (with a brief description thereof) are the material "employee
pension  benefit  plans"  and  "employee  welfare  benefit  plans"  (as  defined
respectively  in  Sections  3(2)  and  3(l) of the  Employee  Retirement  Income
Security Act of 1974, as amended  ("ERISA"))  which Entercom and ECI maintain on
behalf of its  employees  employed  at KLOU.  In all  respects  material to this
transaction,  all "employee pension benefit plans" and "employee welfare benefit
plans" listed on Schedule 4.2.17 hereto comply in all material respects with all
applicable  requirements of law and regulation including ERISA. Neither Entercom
nor ECI has  incurred  or  reasonably  expects  to  incur  (either  directly  or
indirectly, including as a result of any of the transactions contemplated hereby
or any indemnification obligation) any liability (including, without limitation,
withdrawal  liability) that could become a liability of Entercom or ECI under or
pursuant  to Title I or IV of  ERISA or the  penalty,  excise  tax or joint  and
several liability  provisions of the Code relating to employee benefit plans and
no event,  transaction or condition has occurred or exists which could result in
any such liability. Entercom and ECI have made all required contributions to all
multiemployer plans within the meaning of Section 3(37) of ERISA.

                  4.2.18  EMPLOYEES.  Entercom  and ECI have  provided  to ARS a
listing  of the name,  salary or  compensation,  and job title of all  employees
employed at KLOU as of June 30, 1997.  Except as  otherwise  provided in Section
3.3 hereof, Entercom and ECI shall be


                                       20

<PAGE>



responsible for and pay to their  employees all accrued and earned  compensation
and  benefits of any kind,  including  without  limitation,  severance,  accrued
vacation or other termination benefits which result from the employment with and
termination thereof by Entercom and ECI.

                  4.2.19  TRADE OR BARTER.  Schedule  4.2.19  sets forth a true,
complete  and  accurate  description   (including  obligations  and  liabilities
remaining  thereunder) of all contracts for the sale of broadcast advertising on
a trade or barter basis that  individually  involve,  or may involve,  valued in
accordance with U.S. generally accepted accounting procedures, more than $500 in
obligations  remaining  thereunder  as of the date of this  Agreement  in money,
property or services or a remaining term in excess of two (2) months.

                  4.2.20 ENVIRONMENTAL  COMPLIANCE,  POLYCHLORINATED  BIPHENYLS,
ASBESTOS  AND  OTHER  TOXIC OR  HAZARDOUS  SUBSTANCES.  Except as  disclosed  on
Schedule  4.2.20,  and to the  knowledge  of  Entercom  and ECI (a)  none of the
Entercom Property contains (i) any friable asbestos,  polychlorinated  biphenals
or any PCB  contaminated  oil; (ii) any  Contaminants;  or (iii) any underground
storage tanks; (b) no underground  storage tank disclosed on Schedule 4.1.20 has
leaked  and has not been  remediated  or leaks  or has  leaked  and has not been
remediated and each such tank is in substantial  compliance  with all applicable
Environmental  Laws;  and (c) all of the  Entercom  Property  is in  substantial
compliance with all applicable Environmental Laws.

                  4.2.21   FINANCIAL  AND  OTHER   INFORMATION.   All  financial
information concerning KLOU provided to ARS and listed on Schedule 4.2.21 fairly
present the financial  condition of KLOU as of the respective  dates thereof and
the results of operation of KLOU for the  respective  period then ended.  Except
solely for the  obligations and liabilities to be assumed by ARS and ARS License
pursuant to Section 3.1,  there will, at the time of Closing,  be no obligations
or  liabilities  of  any  nature,  whether  accrued,  absolute,   contingent  or
otherwise,  relating to Entercom,  ECI or the KLOU Assets which could, after the
Closing,  result in any form of transferee  liability  against either ARS or ARS
License or subject  any of the KLOU Assets to any lien or  otherwise  affect the
full,  free  and  unencumbered  use of the KLOU  Assets  and the  ownership  and
operation of KLOU by ARS or ARS License.

                  4.2.22  CONDITION OF EQUIPMENT.  All  transmission  and studio
equipment and other equipment  (mechanical  and electrical)  included within the
KLOU Property, is, and will be as of the Closing Date, in a state of good repair
and  maintenance  and is in good  operating  condition,  normal  wear  and  tear
excepted,  has been maintained in a manner  consistent  with generally  accepted
standards of good  engineering  practice and  currently  permits the Kansas City
Stations to be operated in accordance with all current Commission requirements.

                  4.2.23  REAL  PROPERTY.  Schedule  4.2.23  contains a true and
complete  list of all owned and leased real  property  used in the  operation of
KLOU. There are no outstanding options or rights of first refusal to purchase or
sublease such real property or any portion thereof or interest therein. The real
property  identified on Schedule  4.2.23 has  vehicular  access to a road and is
supplied with utilities and other  services  necessary for the operation of that
portion of the business of KLOU  conducted  there.  No real property  other than
that  listed  on  Schedule  4.2.23 or listed on  Schedule  4.2.4  pertaining  to
Excluded Property, is used in, held


                                       21

<PAGE>



for use in  connection  with or  necessary  for the conduct of, the  business or
operations of KLOU. The transmitting towers,  related improvements,  guy anchors
of the transmitting  towers,  and the transmitter  buildings used by Entercom in
the  operation  of  KLOU  are  located  entirely  on  such  real  property.  The
improvements  of  Entercom  upon  such real  property  and the  current  use and
operation of such premises by Entercom  conform in all material  respects to all
restrictive covenants, conditions,  easements, building, subdivision and similar
codes  and  federal,  state and  local  laws,  regulations,  rules,  orders  and
ordinances  and Entercom has not received any notice of any violation or claimed
violation  of any such  restrictive  covenant,  condition  or  easement,  or any
building,  subdivision  or similar  code,  or any  federal,  state or local law,
regulation,  rule,  order or  ordinance  which,  either  individually  or in the
aggregate,  could have a material  adverse  effect on the  assets,  business  or
financial  condition  of KLOU.  There is no pending or, to  Entercom's  or ECI's
knowledge,  threatened  condemnation or other legal  proceeding or action of any
kind relating to such real property  and/or title  thereto.  There are no latent
structural,  mechanical  or other defects of material  significance  in the real
property which could reasonably be expected to have a material adverse effect on
the assets,  business or financial  condition of KLOU. All improvements upon the
real  property on Schedule  4.2.23 are in good  operating  condition and repair,
normal wear and tear  excluded.  Entercom has no  knowledge  and has received no
notice (i) of any pending, threatened, or contemplated action to take by eminent
domain or  otherwise  to condemn  any  portion of the real  property or interest
therein,  or (ii) of any levied,  threatened or proposed  assessments for public
improvements with respect to the real property.

                  4.2.24   NO MATERIAL ADVERSE CONDITION.  Entercom and ECI
do not know of any undisclosed  condition  specifically  applicable to KLOU that
exists on the date of this  Agreement,  including but not limited to, pending or
threatened  litigation,  that is likely to have a material adverse effect on the
KLOU  Assets or  financial  condition  of KLOU,  other  than (i)  changes in the
Ordinary Course of Business, (ii) economic,  business or financial conditions or
trends, and (iii) conditions generally affecting radio stations.

                  4.2.25 PAYMENT OF TAXES.  Entercom and ECI have, and as of the
Closing Date will have, paid and discharged all taxes, assessments,  excises and
other  levies  which  are due,  including  but not  limited  to any such  taxes,
assessments, excises and levies which, if due and not paid, would interfere with
ARS's or ARS License's  enjoyment or use of the KLOU Assets or result in a lien,
charge or encumbrance  thereon,  excepting  those taxes being  contested in good
faith and such taxes,  assessments  and other levies which will not be due until
or after the  Closing  Date and which are  either  to be  prorated  between  the
parties  pursuant to the provisions of Section 8.2 hereof or paid by Entercom or
ECI pursuant to Section 6.3.6.

                  4.2.26  REQUIRED  CONSENTS.  The only approvals or consents of
persons  or  entities  not a  party  to  this  Agreement  that  are  legally  or
contractually  required to be obtained by Entercom or ECI in connection with the
consummation of the  transactions  contemplated by this Agreement are those that
are  (i)  set  forth  on  Schedules  4.2.5  and  4.2.6  hereto  and  (ii)  those
contemplated by Section 5.1.

                  4.2.27 MATERIAL  STATEMENTS AND OMISSIONS;  ABSENCE OF EVENTS.
No representation or warranty made by Entercom and ECI contained in this


                                       22

<PAGE>



Agreement,  any Entercom or ECI Schedule or any  certificate,  document or other
instrument  furnished  or to be  furnished  by Entercom  or ECI  pursuant to the
provisions  hereof  contains or will contain any untrue  statement of a material
fact or omits or will  omit to state  any  material  fact  required  to make any
statement contained herein or therein not misleading. Neither Entercom or ECI is
aware of any  impending  or  contemplated  event  that  would  cause  any of the
representations  and  warranties  made by it in  this  Article  not to be  true,
correct and complete on the date of such event as if made on that date.

                                    ARTICLE V

                                   CONDITIONS


         5.1  COMMISSION  CONSENT  AND  APPROVAL  AND  HSR ACT  WAITING  PERIOD.
Performance of the  obligations of the parties with respect to the Stations that
each such party is  transferring  and/or  acquiring under this Agreement and the
Closing  are and shall be  subject  to the  occurrence  and  concurrence  of the
express  condition  precedent  that the  Commission  has granted its consent and
approval in writing to the  assignment to the parties  hereto of the  respective
Authorizations issued by the Commission for the Stations as contemplated hereby,
such consent to be free of any material adverse condition, and such grants shall
have  become  Final  Orders and the waiting  periods  (as they may be  extended)
applicable  to the  transfer  of the ARS  Assets and the KLOU  Assets  under the
Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended (the "HSR Act")
shall have expired or been earlier terminated.

         5.2 CONDITIONS OF ARS AND ARS LICENSE.  Performance of the  obligations
of ARS and ARS License under this Agreement and the Closing of the  transactions
provided for herein are and shall be subject to the occurrence  and  concurrence
of the express  conditions  precedent,  any of which may be waived by ARS or ARS
License that:

                  5.2.1 No order,  decree or  judgment  of any court,  agency or
other governmental authority shall have been rendered against ARS or ARS License
which would  render it unlawful as of the Closing Date for ARS or ARS License to
effect the  transactions  contemplated  by this Agreement in accordance with its
terms.

                  5.2.2 The  representations  and warranties of Entercom and ECI
contained in Section 4.2 shall be true and correct at and as of the Closing Date
as if made on and as of such date  except for  changes  expressly  permitted  or
contemplated   by  the  terms  of  this  Agreement  and  for  such  breaches  of
representations and warranties that, in the aggregate,  will not have a material
adverse  effect  on the KLOU  Assets  or the  operation  of KLOU (in each  case,
without taking into account any  qualification as to the materiality or material
adverse effect contained in such representations and warranties).

                  5.2.3  All  of  the  terms,  covenants  and  conditions  to be
complied  with and  performed by Entercom  and ECI  hereunder on or prior to the
Closing Date shall have been


                                       23

<PAGE>



complied  with or  performed  except for such  failures to comply  that,  in the
aggregate,  will not have a material  adverse  effect on the KLOU  Assets or the
operation of KLOU.

                  5.2.4 All Required  Consents have been obtained from the other
parties to the KLOU Leases and the KLOU Contracts  identified on Schedules 4.2.5
and 4.2.6  respectively  as "Material  Leases (or  Contracts)-Consent  to Assign
Required."

                  5.2.5 The conditions to closing the JACOR Agreement shall have
been satisfied or waived, and the parties thereto shall be prepared to close the
JACOR Agreement immediately.

         5.3 CONDITIONS OF ENTERCOM AND ECI.  Performance of the  obligations of
Entercom  and ECI under  this  Agreement  and the  Closing  of the  transactions
provided for herein are and shall be subject to the occurrence  and  concurrence
of the express conditions  precedent,  any of which may be waived by Entercom or
ECI that:

                  5.3.1 No order,  decree or  judgment  of any court,  agency or
other  governmental  authority shall have been rendered  against Entercom or ECI
which would  render it unlawful  as of the Closing  Date for  Entercom or ECI to
effect the  transactions  contemplated  by this Agreement in accordance with its
terms.

                  5.3.2 The  representations  and  warranties of each of ARS and
ARS License  contained in Section 4.1 shall be true and correct at and as of the
Closing  Date as if made on and as of such date  except  for  changes  expressly
permitted or  contemplated  by the terms of this Agreement and for such breaches
of  representations  and  warranties  that,  in the  aggregate,  will not have a
material  adverse  effect on the ARS Assets or the  operation of the Kansas City
Stations (in each case,  without taking into account any qualification as to the
materiality or material  adverse effect and any  qualifications  to ARS's or ARS
License's knowledge contained in such representations and warranties).

                  5.3.3  All  of  the  terms,  covenants  and  conditions  to be
complied with and performed by ARS and ARS License  hereunder on or prior to the
Closing Date shall have been complied with or performed except for such failures
to comply that, in the aggregate, will not have a material adverse effect on the
ARS Assets or the operation of the Kansas City Stations.

                  5.3.4 All Required  Consents have been obtained from the other
parties to the Kansas City Leases and the Kansas City  Contracts  identified  on
Schedules   4.1.5   and   4.1.6    respectively   as   "Material    Leases   (or
Contracts)-Consent to Assign Required."

                                   ARTICLE VI

                   COVENANTS AND OPERATIONS PRIOR TO CLOSING.

         6.1  AFFIRMATIVE  COVENANTS OF ARS and ARS  LICENSE.  During the period
from the date of this  Agreement to the Closing Date (unless a different  period
is specified), ARS and ARS License shall:



                                       24

<PAGE>



                  6.1.1 CONDUCT OF BUSINESS.  During the period from the date of
the JACOR  Agreement to the Closing Date unless Entercom and ECI shall otherwise
agree in writing, ARS and ARS License shall use their reasonable best efforts to
cause JACOR to act in conformity  with the JACOR Agreement and to cause JACOR to
conduct  the  business of the Kansas City  Stations  in the  Ordinary  Course of
Business  in  accordance  with sound and  prudent  operating  practices  and all
requirements  of law  and  regulation,  except  such  requirements  of  law  and
regulation  which would not have a material  adverse  effect on the business and
operations of such Stations,  and, to the extent  consistent with the foregoing,
in the same manner in which the same have  heretofore  been  conducted  with the
intent of  preserving  the ongoing  operations  and  business of the Kansas City
Stations.

                  6.1.2  ENTERCOM  CONSENT AND REVIEW;  NOTIFICATION  OF CERTAIN
MATTERS.  Cooperate  with Entercom in connection  with its review,  analysis and
monitoring  of the ARS Assets and the  operations of the Kansas City Stations to
the end that an efficient  transfer of the ARS Assets may be made at Closing and
the business of the Kansas City Stations may continue on an uninterrupted basis.
Furthermore,  ARS and ARS License shall obtain  Entercom's  consent prior to the
exercise of any of ARS's or ARS  License's  rights under the JACOR  Agreement as
such rights  pertain to the Kansas  City  Stations.  In  addition  to  providing
information  required  hereunder or  reasonably  requested by the other  parties
hereto,  ARS and ARS License  agree  promptly to notify the other parties of any
unusual  problems or developments of which ARS or ARS License becomes aware with
respect to the ARS Assets or the business of the Kansas City Stations.

                  6.1.3  MATERIAL  OPERATIONAL  CHANGES.  Consult with  Entercom
regarding  any proposed  material  changes to the operation of any of the Kansas
City Stations  (during any period that ARS or its affiliates are entitled to own
or operate such Kansas City Stations),  to insure the continued operation of the
Kansas City  Stations as they are now operated and  cooperate  with  Entercom to
insure a smooth transfer of ownership and continuity of operations at Closing.

                  6.1.4 ENVIRONMENTAL  ASSESSMENT.  Allow Entercom to obtain, at
its expense, Phase I Environmental Assessments of all or any of the ARS Property
it is acquiring hereunder and any real property used by the Kansas City Stations
in their  operations or for which Entercom could be held  responsible  under any
Environmental Laws. ARS shall use its reasonable best efforts to afford Entercom
access to any ARS Property not then owned by ARS or its  affiliates  in order to
conduct  such  Phase I  Environmental  Assessments.  In the event  such  Phase I
Environmental    Assessments   disclose   any   conditions   contrary   to   the
representations  and warranties  contained in Section  4.1.20,  or any potential
that such  conditions may exist,  then Entercom may conduct or have conducted at
its expense  additional  testing to confirm or negate the  existence of any such
conditions.  If any such Phase I Environmental  Assessment or additional testing
confirms the  existence of any such  conditions,  ARS and ARS License will cause
the  conditions  to be  remedied  to the  extent  required  to  comply  with the
representations  and warranties set forth in Section 4.1.20  (without  regard to
any  knowledge  qualifier  contained  therein);  provided,  however,  that  such
remedial action is not reasonably expected to cost in


                                       25

<PAGE>



excess  of  $150,000.  In the  event  that such  remedial  action is  reasonably
expected  to cost in excess of  $150,000,  ARS and ARS  License may elect not to
take such remedial  action,  and,  notwithstanding  any other  provision of this
Agreement,  ARS and ARS License shall have no further  liability to Entercom and
ECI for any environmental condition to the extent such condition is disclosed on
Schedule  4.1.20  or any  Phase I  Environmental  Assessment  or  other  testing
conducted  pursuant to this Section 6.1.4.  In such event,  Entercom and ECI may
require  ARS and ARS License to proceed to Closing  and  Entercom  and ECI shall
receive  a  proration  at  Closing  in the  amount of  $150,000.  Alternatively,
Entercom and ECI may terminate this Agreement and ARS and ARS License shall have
no  liability  to  Entercom  and ECI as a result  of such  termination.  ARS has
furnished  to  Entercom  copies of any  environmental  reports  of which ARS has
knowledge of and were previously prepared for any of the ARS Property.

                  6.1.5 ARS STATION  EMPLOYEES.  Cooperate  with Entercom in its
efforts  to employ  after  the  Closing  any of the  current  employees  who are
employed at the Kansas City Stations,  including  without  limitation,  allowing
Entercom to meet privately with any such current employees.  ARS and ARS License
will not  interfere  with or attempt to  undermine  in any way,  the  efforts of
Entercom to employ such  employees  after the Closing  Date until  Entercom  has
affirmatively  notified ARS that it will not offer  employment to any particular
employee of the applicable Kansas City Stations.

                  6.1.6  TITLE  REPORTS.  Within  thirty  (30)  days  after  the
execution of this  Agreement at its expense,  (i)  commission a qualified  title
company to prepare  and  provide to  Entercom a  preliminary  title  report with
respect to each parcel of owned real property  within the ARS Property (each, an
"ARS Preliminary  Title Report"),  and ARS shall promptly provide a copy of each
such ARS Preliminary Title Report to Entercom,  together with complete copies of
all  documents  relating  to the title  exceptions  referred to in each such ARS
Preliminary Title Report and (ii) commission a qualified surveyor to prepare and
provide  to  Entercom a ALTA- ACSM  (1992)  Survey of each  parcel of owned real
property within the ARS Property (each, an "ARS Survey")  depicting the location
of all title  exceptions.  Entercom  shall have the right to  disapprove  of any
title exceptions (other than Permitted Encumbrances (whether or not disclosed in
each ARS Preliminary Title Report)) which in Entercom's  reasonable  discretion,
has a material  adverse  effect on the ARS Property or  Entercom's  intended use
thereof,  and Entercom shall notify ARS of any such disapproval  within ten (10)
days after receipt of each ARS Preliminary Title Report, as applicable, and each
ARS Survey,  as applicable,  by Entercom.  All title exceptions set forth in any
ARS Preliminary Title Report and any supplemental  reports or updates to any ARS
Preliminary Title Report and not disapproved by Entercom within the time periods
provided herein shall constitute Permitted  Encumbrances.  Prior to the Closing,
ARS  shall,  at its  expense,  remove or cause to be  removed,  all  disapproved
exceptions  (the  "Disapproved  Matters") or, in the  alternative,  obtain title
insurance in a form satisfactory to Entercom insuring against the effect of such
Disapproved  Matters.  If ARS is  unable  to  remove  or  endorse  over any such
Disapproved  Matters,  or if ARS  exercises  its right not to remove one or more
Disapproved Matters,  Entercom may elect to (i) terminate this Agreement or (ii)
waive such Disapproved Matters (such Disapproved Matters shall then be deemed to
be permitted title


                                       26

<PAGE>



exceptions),  in which event  Entercom  shall receive a credit at the Closing in
the amount equal to the reduction in value of such ARS Property  resulting  from
such Disapproved Matters.

                  6.1.7 TAXES.  Pay and  discharge  all taxes due after  Closing
accrued or accruing with respect to periods ending on or before the Closing Date
to the extent such taxes could result in a lien or otherwise  interfere with the
use or enjoyment of the ARS Assets.

                  6.1.8 SCHEDULES. Within a period of thirty (30) days following
the  execution  of this  Agreement,  use their  best  efforts  to  finalize  all
schedules referred to in Section 4.1 and shall use their best efforts thereafter
to  promptly  supplement  or amend the final  schedules  referred to herein with
respect to any matter  arising after the date of this  Agreement that would have
been  required  to make  such  schedules  complete  and  accurate.  Prior to the
acceptance of final schedules or any modification of any schedule referred to in
Section 4.1 by ARS or ARS License  pursuant to this Section 6.1.8,  Entercom and
ECI shall have the right to approve such schedule or modification, such approval
not to be unreasonably withheld, conditioned or delayed. If Entercom disapproves
of any final schedule or modification thereafter pursuant to this Section 6.1.8,
any such schedule or proposed modification will not be accepted or permitted, as
the case may be, except as thereafter  agreed to by the parties.  If the parties
fail to agree in the  exercise  of  reasonable  good faith  judgment on any such
final schedule or proposed  modification thereto, this agreement shall terminate
and no party shall have any further  liability  to any other party  hereunder in
the case of  disagreement  over  final  schedule  or, in the case of a  schedule
modification,  Entercom may proceed to Closing and seek indemnification pursuant
to Section 9.4 hereof.

                  6.1.9 INTENTION TO EMPLOY. Notify Entercom, at least eight (8)
days prior to Closing as to which employees of Entercom who are employed at KLOU
that ARS intends to hire.

                  6.1.10 BEST EFFORTS TO CLOSE JACOR  AGREEMENT;  ENFORCEMENT OF
RIGHTS. ARS and ARS License shall use their reasonable best efforts to close the
transactions  contemplated by the JACOR Agreement in a timely fashion consistent
with the terms of such agreement. ARS and ARS License shall enforce their rights
to the fullest extent  possible under the JACOR Agreement as they pertain to the
Kansas City Stations,  unless otherwise  directed by Entercom;  provided however
that ARS and ARS License  shall not invoke  their  rights to not close the JACOR
Agreement  under Section 6.3(f)  thereof,  with respect to any material  adverse
change  relating to the Kansas City Stations  without  Entercom's  prior written
approval.

                  6.1.11 JACOR AGREEMENT NOTIFICATIONS. To the extent ARS or ARS
License  receives  notifications  from  JACOR with  respect  to the Kansas  City
Stations under the JACOR  Agreement or otherwise  becomes aware of any breach of
any  representation,  warranty,  covenant or agreement in the JACOR Agreement or
the  failure to  satisfy  any  condition  in such  agreement,  in each case with
respect to the Kansas City Stations,  ARS and ARS License shall promptly  notify
Entercom, and thereafter enforce, perform or waive any provision of the


                                       27

<PAGE>



JACOR Agreement pertaining to the Kansas City Stations as requested by Entercom;
provided  that ARS and ARS License  shall not be obligated to take any action at
Entercom's  request  inconsistent  with their rights and  obligations  under the
JACOR Agreement.

         6.2  NEGATIVE  COVENANTS OF ARS AND ARS  LICENSE.  Unless  Entercom has
given its consent in writing,  which consent shall not be unreasonably withheld,
ARS and ARS License shall not,  directly or  indirectly,  during the period from
the date hereof to the Closing Date:

                  6.2.1 KANSAS CITY LEASES AND CONTRACTS. Except as specifically
provided in this Agreement, cancel, amend, modify adversely, assign, encumber or
in any way  discharge or terminate  any of the Kansas City Leases or Kansas City
Contracts.

                  6.2.2  AUTHORIZATIONS.  By  any  act or  omission,  surrender,
modify adversely,  forfeit or fail to renew on regular terms any  Authorizations
for the Kansas City  Stations or take or omit any action  which might  result in
the Commission  instituting any  proceedings  for the revocation,  suspension or
modification of any such Authorizations.

                  6.2.3  DISPOSE OF  ASSETS.  Except in the  Ordinary  Course of
Business, sell or dispose of any of the ARS Assets; provided that any ARS Assets
so disposed of in the Ordinary  Course of Business  are replaced  with assets of
like kind, quality and quantity.

                  6.2.4 LIENS.  Suffer or permit the  creation of any  mortgage,
conditional  sale agreement,  security  interest,  lease,  lien,  hypothecation,
pledge, encumbrance,  restriction,  liability,  charge, claim or imperfection of
title  on or  with  respect  to any of  the  ARS  Assets  other  than  Permitted
Encumbrances and those identified on Schedule 4.1.8 hereto.

                  6.2.5  ADVERTISING  CONTRACTS.  Enter into any Contracts other
than in the  ordinary  and usual  course of business  and  consistent  with past
practice.

                  6.2.6  BROADCAST  OPERATIONS.  Fail  to  take  any  reasonable
actions necessary to maintain continuous broadcast operations of the Kansas City
Stations from their main antennae.

                  6.2.7  DAMAGE  TO ARS  ASSETS.  Fail  to take  any  reasonable
actions  necessary  to avoid the  happening  of or to cure the  existence of any
material damage to or impairment of any of the ARS Assets.

                  6.2.8  REQUIREMENTS  OF LAW.  Fail to operate  the Kansas City
Stations in  conformity  in all  material  respects  with all of the  applicable
requirements of law and regulation.



                                       28

<PAGE>



                  6.2.9 JACOR AGREEMENT. Fail to comply with the terms of, waive
any of their  rights  under or consent to any actions  requiring  their  consent
under the JACOR Purchase Agreement.

                  6.2.10 PERFORMANCE OF ARS COVENANTS.  To the extent ARS and/or
ARS License is obligated to perform any  covenant in this  Agreement  (including
but not limited to covenants contained in Sections 6.1 and 6.2 hereof) which, by
its nature,  must be performed by JACOR (as defined in the JACOR  Agreement)  as
the owner of the Kansas City Stations,  the parties  acknowledge  and agree that
ARS and ARS License  shall  satisfy  their  obligation  under any such  covenant
through  enforcing their rights to the fullest extent  permitted by the terms of
the comparable  covenant in the JACOR  Agreement for the benefit of Entercom and
ECI.

         6.3  AFFIRMATIVE  COVENANTS OF ENTERCOM AND ECI. During the period from
the date of this  Agreement to the Closing  Date  (unless a different  period is
specified), Entercom and ECI shall:

                  6.3.1  CONDUCT OF  BUSINESS.  Unless ARS or ARS License  shall
otherwise  agree in writing,  conduct the business and operations of KLOU in the
Ordinary  Course of Business  in  accordance  with sound and  prudent  operating
practices and all requirements of law and regulation,  except such  requirements
of law and  regulation  which  would not have a material  adverse  effect on the
business  and  operations  of  KLOU,  and,  to the  extent  consistent  with the
foregoing,  in the same manner in which the same have  heretofore been conducted
with the intent of preserving the ongoing operations and business of KLOU.

                  6.3.2 ARS REVIEW;  NOTIFICATION OF CERTAIN MATTERS.  Cooperate
with ARS in  connection  with its review,  analysis and  monitoring  of the KLOU
Assets and the  operations of KLOU to the end that an efficient  transfer of the
KLOU Assets may be made at Closing and the  business of KLOU may  continue on an
uninterrupted basis. In addition to providing  information required hereunder or
reasonably  requested  by the  other  parties  hereto,  Entercom  and ECI  agree
promptly  to  notify  the  other  parties  hereto  of any  unusual  problems  or
developments  of which  Entercom or ECI becomes  aware with  respect to the KLOU
Assets or the business of KLOU.

                  6.3.3 MATERIAL OPERATIONAL CHANGES. Consult with ARS regarding
any proposed  material  changes to the operation of KLOU (during any period that
Entercom or its  affiliates  owns or  operates  KLOU),  to insure the  continued
operation  of KLOU as it is now  operated  and  cooperate  with ARS to  insure a
smooth transfer of ownership and continuity of operations at Closing.

                  6.3.4  ENVIRONMENTAL  ASSESSMENT.  Allow ARS to obtain, at its
expense, Phase I Environmental Assessments of all or any of the KLOU Property it
is acquiring  hereunder and any real property used by KLOU in its  operations or
for which ARS could be held responsible under any Environmental  Laws.  Entercom
shall afford ARS access to any


                                       29

<PAGE>



KLOU Property owned by Entercom or its affiliates in order to conduct such Phase
I Environmental Assessments. In the event such Phase I Environmental Assessments
disclose any conditions contrary to the representations and warranties contained
in Section 4.2.20, or any potential that such conditions may exist, then ARS may
conduct or have conducted at its expense additional testing to confirm or negate
the  existence  of any  such  conditions.  If any  such  Phase  I  Environmental
Assessment or additional  testing confirms the existence of any such conditions,
Entercom  will cause the  conditions  to be remedied  to the extent  required to
comply  with the  representations  and  warranties  set forth in Section  4.2.20
(without  regard  to  any  knowledge  qualifier  contained  therein);  provided,
however,  that such remedial action is not reasonably expected to cost in excess
of $150,000.  In the event that such remedial  action is reasonably  expected to
cost in excess of $150,000, Entercom and ECI may elect not to take such remedial
action, and notwithstanding any other provision of this Agreement,  Entercom and
ECI shall have no further liability to ARS and ARS License for any environmental
condition to the extent such  condition  is disclosed on Schedule  4.2.20 or any
Phase I  Environmental  Assessment or other testing  conducted  pursuant to this
Section 6.3.4. In such event,  ARS and ARS License may require  Entercom and ECI
to proceed to Closing and ARS and ARS  License  shall  receive a purchase  price
adjustment  in the amount of  $150,000.  Alternatively,  ARS and ARS License may
terminate  this Agreement and Entercom and ECI shall have no liability to ARS or
ARS  License as a result of such  termination.  Entercom  has  furnished  to ARS
copies of any environmental  reports of which Entercom has knowledge of and were
previously prepared for any of the KLOU Property.

                  6.3.5 KLOU  EMPLOYEES.  Cooperate  with ARS in its  efforts to
employ after the Closing any of the current  employees who are employed at KLOU,
including  without  limitation,  allowing  ARS to meet  privately  with any such
current  employees.  Entercom will not interfere with or attempt to undermine in
any way,  efforts of ARS to employ such  employees  after the Closing Date until
ARS has affirmatively notified Entercom that it will not offer employment to any
particular employee of KLOU.

                  6.3.6 TAXES.  Pay and  discharge  all taxes due after  Closing
accrued or accruing with respect to periods ending on or before the Closing Date
to the extent such taxes could result in a lien or otherwise  interfere with the
use or enjoyment of the KLOU Assets.

                  6.3.7  FINAL  SCHEDULES.  Within a period of thirty  (30) days
following  the execution of this  Agreement,  use their best efforts to finalize
all  Schedules  referred  to in  Section  4.2 and shall use their  best  efforts
promptly to supplement or amend the schedules referred to herein with respect to
any  matter  arising  after  the date of this  Agreement  that  would  have been
required to make such schedules complete and accurate.

                  6.3.8 INTENTION TO EMPLOY. Notify ARS, at least eight (8) days
prior to Closing as to which employees employed at the Kansas City Stations that
Entercom intends to hire.



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<PAGE>



                  6.3.9   FINANCIAL   INFORMATION.   Entercom,   ECI  and  their
accountants  shall  cooperate  with  ARS  in the  provision  of  such  financial
information  as  Entercom  or ECI  possess to permit,  to the extent  reasonably
possible,  ARS's  independent  accountants  to  issue a report  (which  shall be
unqualified  as to the scope of the audit,  access to the books and  records and
the  cooperation  of management)  on the financial  statements  (consisting of a
balance  sheet for the fiscal year ended  December  31, 1996 and  statements  of
operations  and cash flow for the one year period  ended  December  31, 1996) of
KLOU.  The parties  acknowledge  that  Entercom and ECI recently  acquired  KLOU
pursuant  to the  Westinghouse  Agreement  and as such  have  limited  financial
information with respect to KLOU's past operations. Entercom shall exercise what
rights it may possess  under the  contract  by which it acquired  KLOU to obtain
such other  financial  information  as may be reasonably  possible and which may
assist ARS's  independent  accountants  in issuing the report  referenced in the
first sentence of this Section 5.2.5.

         6.4 NEGATIVE  COVENANTS  OF ENTERCOM AND ECI.  Unless ARS has given its
consent in writing, which consent shall not be unreasonably  withheld,  Entercom
and ECI shall not,  directly  or  indirectly,  during  the period  from the date
hereof to the Closing Date:

                  6.4.1  KLOU  LEASES  AND  CONTRACTS.  Except  as  specifically
provided in this Agreement, cancel, amend, modify adversely, assign, encumber or
in any way discharge or terminate any of the KLOU Leases or KLOU Contracts.

                  6.4.2  AUTHORIZATIONS.  By  any  act or  omission,  surrender,
modify adversely,  forfeit or fail to renew on regular terms any  Authorizations
for  KLOU or take or omit  any  action  which  might  result  in the  Commission
instituting any  proceedings  for the revocation,  suspension or modification of
any such Authorizations.

                  6.4.3  DISPOSE OF  ASSETS.  Except in the  Ordinary  Course of
Business,  sell or dispose  of any of the KLOU  Assets;  provided  that any KLOU
Assets so  disposed of in the  Ordinary  Course of Business  are  replaced  with
assets of like kind, quality and quantity.

                  6.4.4 LIENS.  Suffer or permit the  creation of any  mortgage,
conditional  sale agreement,  security  interest,  lease,  lien,  hypothecation,
pledge, encumbrance,  restriction,  liability,  charge, claim or imperfection of
title  on or  with  respect  to any of the  KLOU  Assets  other  than  Permitted
Encumbrances and those identified on Schedule 4.2.8 hereto.

                  6.4.5  ADVERTISING  CONTRACTS.  Enter into any Contracts other
than in the  ordinary  and usual  course of business  and  consistent  with past
practice.

                  6.4.6  BROADCAST  OPERATIONS.  Fail  to  take  any  reasonable
actions necessary to maintain continuous  broadcast  operations of KLOU from its
main antenna.

                  6.4.7  DAMAGE  TO KLOU  ASSETS.  Fail to take  any  reasonable
actions  necessary  to avoid the  happening  of or to cure the  existence of any
material damage to or impairment of any of the KLOU Assets.


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<PAGE>



                  6.4.8  REQUIREMENTS OF LAW. Fail to operate KLOU in conformity
in all material  respects  with all of the  applicable  requirements  of law and
regulation.

         6.5 NO CONTROL.  Nothing  contained in this Agreement shall give to any
other party any right to control the operations of the Station to be acquired by
it prior to the Closing  Date.  Entercom  and ECI  acknowledge  that ARS and ARS
License have no rights in respect of the Kansas City  Stations  other than under
the JACOR Agreement.  Any advice, counsel or consent given under this Article VI
will  not  mitigate,  detract  from or  otherwise  affect  the  representations,
warranties or obligations under this Agreement and the consequences of the other
party's acting on any such advice,  counsel or consent will be solely such other
party's responsibility.

                                   ARTICLE VII

                            ACTIONS PRIOR TO CLOSING


         7.1  APPLICATION TO COMMISSION.  The parties hereby bind  themselves to
use all  reasonable  efforts,  and to  cooperate  with each other  (which  shall
include  in the case of ARS and ARS  License  causing  JACOR to  cooperate),  in
seeking the consent and  approval of the  Commission  to the  assignment  of the
Authorizations;  diligently  and  promptly  to  prepare,  sign and file with the
Commission within ten (10) business days from the date of this Agreement any and
all  applications  requisite or desirable to procure such consents and approvals
(the  "Assignment  Applications");  and  diligently  and promptly to prepare and
submit  to  the  Commission  all  information,   data,   exhibits,   amendments,
resolutions,  statements  and other  material  necessary or proper in connection
with the Assignment Applications;  and diligently to pursue the grant of a Final
Order  approving such Assignment  Applications  by the Commission.  In the event
JACOR shall fail to cooperate  with  Entercom and ECI to the extent  required by
this  Section  7.1, ARS and ARS License  shall  independently  take such actions
necessary to prepare and file the requisite  Assignment  Applications and pursue
the grant of a Final Order.

         7.2 HART-SCOTT-RODINO  NOTIFICATION.  As promptly as practicable and no
later than seven (7) days after the date hereof,  the parties  hereto shall take
all steps  reasonably  necessary to file and shall  participate in the filing of
all requisite  documents and notifications  required to be filed pursuant to the
HSR Act. All filing fees in connection with such notifications  shall be divided
equally between ARS and Entercom. The parties agree diligently to take and fully
cooperate  in the taking of, all  necessary  and proper  steps,  and provide any
additional  information  reasonably  requested  in order to obtain  promptly the
expiration of the waiting period under the HSR Act. ARS and ARS License may meet
their  obligations  hereunder by causing JACOR to comply with the  provisions of
this Section 7.2. In the event that JACOR shall fail to cooperate  with Entercom
and ECI and take all steps  necessary  to ensure  the  requisite  documents  and
notifications  are filed  pursuant  to the HSR Act,  ARS and ARS  License  shall
independently take such action necessary to comply with the requirements of this
provision.


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<PAGE>



         7.3  INSPECTION.  During the period from the date of this  Agreement to
the Closing Date, each party shall, upon reasonable request, afford, or cause to
be afforded,  engineers,  attorneys,  accountants and other  consultants  and/or
representatives  of the party acquiring their current  Stations free access in a
reasonable  manner  during  normal  business  hours to the  employees,  offices,
studios, transmitter sites, equipment, records and other documents pertaining to
such Stations and furnish or cause to be furnished such acquiring party with all
information  concerning  such  Station's  affairs  as such  acquiring  party may
reasonably request, including but not limited to applications,  responses to the
Commission's questionnaires,  and other documents filed with the Commission. For
purposes of the foregoing, records shall include, without limitation, any sales,
research,  consulting and ratings reports  relating to the Stations.  During any
period  that a party  does not own a  Station,  such  party  shall  use its best
efforts  to  afford  the  other  party  access  to such  Station  to the  extent
contemplated by this Section 7.3. ARS and ARS License may meet their obligations
hereunder by designating  Entercom as their  representative  to act on behalf of
ARS under the corresponding provision in the JACOR Agreement.

         7.4 CONFIDENTIALITY. Each party hereby covenants and agrees that in the
event the  transactions  contemplated  by this Agreement are not consummated for
any reason whatsoever, they will, upon request, return to the other party within
ten (10)  days from the date of such  request,  all  copies  of all  information
designated at the time of delivery as confidential  (other than one copy thereof
which may remain with independent  counsel for such party) and each party hereby
covenants and agrees to use reasonable efforts to hold all such information (the
"Confidential  Information")  in  confidence  and not to disclose,  or cause any
representative,  agent or  employee of such party to disclose to any third party
any portion of the  Confidential  Information  and not to use any portion of the
Confidential  Information  for its own  benefit.  Nothing  shall be deemed to be
Confidential  Information  which:  (i) is  known  to a party  at the time of its
disclosure by the  disclosing  party;  (ii) becomes  publicly known or available
other than through  disclosure  by the  disclosing  party;  (iii) is  rightfully
received by a party from a third party;  or (iv) is  independently  developed by
the party.

         7.5 EMPLOYEE DIVISION.  The parties agree to cooperate in good faith to
make an equitable and fair division  among  themselves of those  employees  with
duties currently at both KUDL(FM) and KMXV(FM).

                                  ARTICLE VIII

                                     CLOSING


         8.1 CLOSING.  Closing  shall take place at the time and place agreed to
by the  parties  hereto.  In the  absence  of  agreement  thereon  and except as
modified  elsewhere herein, the Closing shall take place at such location as the
parties  may  agree at  10:00  a.m.,  on the date of  closing  under  the  JACOR
Agreement  provided that all of the conditions to Closing set forth in Article V
hereof are satisfied or waived. If the parties fail to agree on the Closing Date
or


                                       33

<PAGE>



location,  then Closing  shall occur by mail on such tenth (10th)  business day.
The  foregoing  notwithstanding,  Closing may be delayed as provided in Sections
8.6 and 9.4.6 hereof.

         8.2  PRORATIONS.  Within ninety (90) days after Closing,  an accounting
for each Station shall be made as follows:

                  8.2.1  GENERALLY.   All  prepaid  income,   prepaid  expenses,
prepayments on any Contracts and Leases assumed,  accrued income, property taxes
and  accrued  expenses up to the  Adjustment  Time  shall,  except as  otherwise
expressly provided herein, be adjusted and allocated between the disposing party
and the acquiring  party to reflect the  principle  that all expenses and income
rising from the operation of the Station up through the Adjustment Time shall be
for the account of the disposing party, and all expenses and income arising from
the operation of the Station after the Adjustment  Time shall be for the account
of the acquiring party. Any appropriate  proration required to be made to Leases
and Contracts  shall also be reflected in such  accounting.  Any amount not paid
when due shall bear interest at the rate of ten percent (10%) per annum.

                  8.2.2  CERTIFICATE  OF  PRORATIONS.  As  soon  as  practicable
following  the  Closing  Date,  and  in  any  event,  within  ninety  (90)  days
thereafter,  or at such other time as the parties agree,  the acquiring party of
each  Station  shall  deliver  to the  disposing  party  the  acquiring  party's
certificate, setting forth as of the Adjustment Time, all adjustments to be made
as provided in Section 8.2.1 above as to the Station.  The acquiring party shall
provide the disposing party or its representatives access to copies of all books
and records the disposing party may reasonably request for purposes of verifying
such  adjustments.   The  acquiring  party's  certificate  shall  be  final  and
conclusive  unless  objected to by the disposing  party in writing within thirty
(30) days after  delivery.  The  acquiring  and  disposing  party shall  attempt
jointly  to reach  agreement  as to the  amount  of the  adjustments  to be made
hereunder within sixty (60) days after receipt of such written objection,  which
agreement, if achieved,  shall be binding upon all parties to this Agreement and
not subject to dispute or review.

                  8.2.3 ARBITRATION.  In the event of a disagreement between the
acquiring  and  disposing  parties  with  respect to the  accounting  to be made
hereunder,  the  parties  agree  that  Arthur  Andersen,  LLP shall be the final
arbiter of such disagreement.

                  8.2.4 PAYMENTS.  Any amounts due for the adjustments  provided
for  herein   shall  be  paid  within  ten  (10)   business   days  after  final
determination.

                  8.2.5 JACOR  PRORATIONS.  ARS and Entercom  shall jointly take
such actions  under  Section  2.3(g) of the JACOR  Agreement  as are  reasonably
necessary to effect prorations with respect to the Kansas City Stations.  To the
extent  proration  procedures under the JACOR Agreement are different than those
set forth herein,  the procedures set forth in the JACOR Agreement shall control
prorations with respect to the Kansas City Stations.



                                       34

<PAGE>



         8.3  CLOSING  DELIVERIES  TO ARS  AND ARS  LICENSE.  At or  before  the
Closing,  Entercom and ECI shall deliver or cause to be delivered to ARS and ARS
License the following  items and documents in form  reasonably  satisfactory  to
counsel  for ARS and ARS  License  and  properly  executed,  unless  ARS and ARS
License  shall waive in whole or in part in writing such  delivery and then only
to the extent of such waiver:

                  8.3.1  BILL OF SALE.  Such Bills of Sale and  assignments  and
other  instruments  of transfer  and  conveyance,  transferring  to ARS the KLOU
Property  to be sold,  transferred  or  assigned  hereunder  and the  rights and
interests  under the KLOU Leases and the KLOU  Contracts  being  assigned to ARS
hereunder.

                  8.3.2  AUTHORIZATION  ASSIGNMENT.  An assignment to ARS of all
right, title and interest of ECI in and to the KLOU Authorizations.

                  8.3.3 POSSESSION.  All keys to and actual possession of all of
the KLOU Property,  such KLOU Property in the same condition as the same now is,
except for ordinary wear and tear thereof.

                  8.3.4 BOARD  RESOLUTIONS.  Certified  copies of resolutions of
the Board of Directors of Entercom (on its behalf and in its capacity as General
Partner of ECI) duly authorizing the execution, delivery and performance of this
Agreement  and all documents to be executed and delivered by Entercom and ECI at
the Closing and thereafter.

                  8.3.5  OFFICER'S   CERTIFICATE.   Certificates  signed  by  an
authorized officer of Entercom and ECI, to the effect that no act or omission of
Entercom or ECI or state of facts  contrary to the  agreements,  representations
and warranties of such party contained herein has been taken or has occurred and
that said representations and warranties to the extent they do not speak as of a
specific  time are true and correct as of the Closing  Date with the same effect
as if made as of the  time of  Closing  and that all  covenants  and  agreements
contained  herein of the party  delivering  the  certificate  have been complied
with.

                  8.3.6 ASSUMPTION  AGREEMENTS.  One or more agreements  whereby
Entercom  assumes  and  agrees  to pay  when due any  liabilities  of ARS or ARS
License  relating to the Kansas City Stations  specifically  assumed by Entercom
and ECI hereunder,  including without  limitation,  those  liabilities  accruing
after the  Adjustment  Time with  respect to those Kansas City Leases and Kansas
City Contracts being assumed by Entercom hereunder.

                  8.3.7 REQUIRED CONSENTS. The Required Consents relating to the
KLOU Leases and the KLOU Contracts.

                  8.3.8 UCC  SEARCHES.  Entercom  shall  deliver to ARS  Uniform
Commercial  Code ("UCC") lien searches from the city of St. Louis,  Missouri and
relevant filing offices in the Missouri  Secretary of State, each dated not more
than thirty (30) days prior to the  Closing  Date and showing no UCC,  judgment,
tax or other lien filings against the KLOU Assets, other


                                       35

<PAGE>



than (i) Permitted  Encumbrances  and (ii)  security  interests or other filings
that will be released at the Closing. Entercom shall deliver evidence at Closing
of the  release of  security  interests  or other  filings to be released at the
Closing.

                  8.3.9 OPINION OF COUNSEL.  An opinion of (i) John C. Donlevie,
Esq.  Entercom's  General  Counsel  and (ii)  Latham & Watkins,  Entercom's  FCC
counsel, in form and substance reasonably satisfactory to ARS.

         8.4 CLOSING  DELIVERIES  TO ENTERCOM AND ECI. At or before the Closing,
ARS and ARS License  shall  deliver or cause to be delivered to Entercom and ECI
the following items and documents in form reasonably satisfactory to counsel for
Entercom and ECI and properly  executed,  unless  Entercom or ECI shall waive in
whole or in part in writing  such  delivery  and then only to the extent of such
waiver:

                  8.4.1  BILL OF SALE.  Such Bills of Sale and  assignments  and
other  instruments of transfer and conveyance,  transferring to Entercom the ARS
Property  to be sold,  transferred  or  assigned  hereunder  and the  rights and
interests  under the Kansas City Leases and Kansas City Contracts being assigned
to Entercom hereunder.

                  8.4.2  AUTHORIZATION  ASSIGNMENT.  An assignment to ECI of all
right, title and interest of JACOR in and to the Authorizations  relating to the
Kansas City Stations.

                  8.4.3 POSSESSION.  All keys to and actual possession of all of
the ARS Property,  in the same condition as the same now is, except for ordinary
wear and tear thereof.

                  8.4.4 BOARD  RESOLUTIONS.  Certified  copies of resolutions of
the Board of Directors of ARS and ARS License duly  authorizing  the  execution,
delivery and  performance of this Agreement and all documents to be executed and
delivered by ARS and ARS License at the Closing and thereafter.

                  8.4.5  OFFICER'S  CERTIFICATES.   Certificates  signed  by  an
authorized  officer of ARS and ARS License to the effect that no act or omission
of  ARS  or  ARS  License,  or  state  of  facts  contrary  to  the  agreements,
representations  and warranties of such party contained herein has been taken or
has occurred and that said  representations and warranties to the extent they do
not speak as of a specific time are true and correct as of the Closing Date with
the same effect as if made as of the time of Closing and that all  covenants and
agreements  contained  herein of the party  delivering the certificate have been
complied with.

                  8.4.6 ASSUMPTION  AGREEMENTS.  One or more agreements  whereby
ARS  assumes  and  agrees to pay when due any  liabilities  of  Entercom  or ECI
relating  to  KLOU  specifically  assumed  by ARS  and  ARS  License  hereunder,
including without  limitation,  those liabilities  accruing after the Adjustment
Time with respect to those KLOU Leases and KLOU  Contracts  being assumed by ARS
or ARS License hereunder.



                                       36

<PAGE>



                  8.4.7 REQUIRED CONSENTS. The Required Consents relating to the
Kansas City Leases and Kansas City Contracts.

                  8.4.8 UCC  SEARCHES.  ARS and ARS  License  shall  deliver  to
Entercom UCC lien searches from  Wyandotte  County,  Kansas and Jackson  County,
Missouri and the Missouri and Kansas  Secretaries of State,  each dated not more
than thirty (30) days prior to the  Closing  Date and showing no UCC,  judgment,
tax or other lien  filings  against  the ARS  Assets,  other than (i)  Permitted
Encumbrances and (ii) security  interests or other filings that will be released
at the Closing. ARS shall deliver evidence at Closing of the release of security
interests or other filings to be released at the Closing.

                  8.4.9 CASH CONSIDERATION. ARS and ARS License shall deliver to
Entercom  and  ECI  the  ARS  Cash   Consideration   by  immediately   available
wire-transferred funds.

                  8.4.10  OPINION  OF  COUNSEL.  An  opinion  of (i)  Michael B.
Milsom,  Esq.,  ARS's General  Counsel and (ii) Dow,  Lohnes & Albertson,  PLLC,
ARS's FCC counsel, in form and substance reasonably satisfactory to Entercom.

                  8.4.11  RELIANCE ON JACOR.  The parties  acknowledge  that ARS
and/or ARS License may satisfy their  obligations  under this Section 8.4 to the
extent  that ARS and/or  ARS  License  are  entitled  to receive  from JACOR (as
defined in the JACOR  Agreement)  any of the  foregoing  deliveries,  by causing
JACOR to make such deliveries directly to Entercom and ECI.

         8.5 COVENANTS OF FURTHER ASSURANCES.  At and after the time of Closing,
upon  request,  each party shall take such action and deliver to the other party
such  further  instruments  of  assignment,  conveyance  or  transfer  or  other
documents of further  assurance as may be  reasonably  necessary to evidence the
full and  effective  transfer,  conveyance  and  assignment  of the  Assets  and
possession thereof to the respective parties,  their successors and assigns, and
to assure complete performance of this Agreement in all respects.

         8.6 RISK OF LOSS; DAMAGE TO PROPERTY. The risk of loss or damage to any
of the KLOU Assets prior to Closing  shall be upon Entercom and ECI. The risk of
loss or damage to any of the ARS Assets  prior to Closing  shall be upon ARS and
ARS License.  If, at the time of Closing,  any tangible  personal property to be
sold hereunder that is necessary for the operations of any respective Station as
it is conducted on the date of execution of this  Agreement  shall have suffered
loss or  damage to an  extent  that  affects  the  value  thereof  and the party
disposing such property hereunder shall not have repaired,  replaced or restored
same with property of like kind,  quality and value,  the party  acquiring  such
property  hereunder  shall have the right at its  election to (i)  complete  the
purchase and Closing,  in which event it shall be entitled to a payment equal to
the greater of (a) the amount  necessary to repair to its original  condition or
replace such  property or restore such damaged  property  with  property of like
kind,  quality  and value or (b) the  amount of any and all  insurance  proceeds
available  to the other  party,  if any,  collectible  by reason of such loss or
damage, or (ii) postpone Closing until such


                                       37

<PAGE>



time as the other  party  shall have so  repaired,  replaced  or  restored  such
property,  provided  that if such repair,  replacement  or  restoration  of such
property  is not  completed  within  sixty (60) days after the date on which the
loss or damage  was  suffered,  then the  acquiring  party  shall  complete  the
purchase and Closing pursuant to (i) above.

         8.7  TAXES  ON  TRANSACTION.  All  sales,  purchase,  transfer,  use or
documentary  taxes,  if any,  payable by reason of this  Agreement or any of the
transactions contemplated hereby or the sale, transfer or delivery of any of the
Assets to a party hereunder whether or not imposed on such party,  shall be paid
and borne by the party  transferring  such  Assets or causing  such Assets to be
transferred  either by payment thereof or by  reimbursement  to one of the other
parties.

                                   ARTICLE IX

                    TERMINATION, DEFAULT AND INDEMNIFICATION


         9.1 TERMINATION. This Agreement may be terminated by a party hereto not
then in  Default  hereunder  upon  written  notice  to the  other  parties  upon
occurrence of any of the following:

                  9.1.1    By any of the parties hereto:

                    (i) if the Closing  has not  occurred by March 31, 1998 (the
"Termination Date"); or

                    (ii) if the Commission  denies or designates for hearing any
of the Assignment Applications or any portion thereof by Final Order; or

                    (iii) if there is  outstanding  any  final  judgment,  final
decree or final order that would prevent or make unlawful the Closing; or

                    (iv)  if  the  JACOR   Closing  has  not   occurred  by  the
Termination Date other than due to a breach of the JACOR Agreement by either ARS
or ARS License.

                  9.1.2  By ARS or ARS  License  if  neither  of them is then in
Default, and if any of the conditions set forth in Section 5.2 of this Agreement
are not waived by ARS or ARS  License  and such  conditions  shall not have been
satisfied  on or before the  Closing  Date or shall  have  become  incapable  of
satisfaction.

                  9.1.3  By  Entercom  or ECI if  neither  of  them  is  then in
Default, and if any of the conditions set forth in Section 5.3 of this Agreement
are not  waived  by  Entercom  or ECI and such  conditions  shall  not have been
satisfied  on or before the  Closing  Date or shall  have  become  incapable  of
satisfaction.


                                       38

<PAGE>

                  9.1.4    By written mutual consent of Entercom and ARS.

         9.2 EFFECT OF  TERMINATION.  The  termination of this  Agreement  under
Section  9.1 shall not  relieve  any party of any  liability  for breach of this
Agreement prior to the date of termination.

         9.3 REMEDIES.

                  9.3.1 BREACH BY ENTERCOM OR ECI.  Entercom  and ECI  recognize
that, in the event of a Default by Entercom or ECI,  monetary damages alone will
not be adequate. Therefore, in the event of a Default by Entercom or ECI, unless
ARS or ARS  License is in  Default,  ARS or ARS License  shall be  entitled,  in
addition to indemnification  pursuant to Section 9.4, and instead of their right
to terminate this  Agreement  under Section 9.1 and obtain  indemnification,  to
obtain  specific  performance of the terms of this  Agreement.  In any action to
enforce specifically the performance of this Agreement under this Section 9.3.1,
Entercom and ECI shall waive the defense that there is another  adequate  remedy
at law or equity  and agree  that ARS and ARS  License  shall  have the right to
obtain specific  performance of Entercom's and ECI's obligations under the terms
of this Agreement  without being required to prove actual damages,  post bond or
furnish other security.

                  9.3.2  BREACH  BY ARS OR ARS  LICENSE.  ARS  and  ARS  License
recognize  that,  in the  event of a  Default  by ARS or ARS  License,  monetary
damages alone will not be adequate.  Therefore, in the event of a Default by ARS
or ARS License, unless Entercom or ECI is in Default,  Entercom and ECI shall be
entitled, in addition to indemnification pursuant to Section 9.4, and instead of
their  right  to  terminate  this   Agreement   under  Section  9.1  and  obtain
indemnification,  to obtain specific performance of the terms of this Agreement.
In any action to enforce  specifically  the  performance of this Agreement under
this Section  9.3.2,  ARS and ARS License  shall waive the defense that there is
another  adequate  remedy at law or equity and agree that Entercom and ECI shall
have the  right  to  obtain  specific  performance  of  ARS's  or ARS  License's
obligations  under the terms of this  Agreement  without being required to prove
actual damages, post bond or furnish other security.

         9.4 INDEMNIFICATION.

                  9.4.1  BY ARS AND ARS  LICENSE.  ARS  and  ARS  License  shall
indemnify,  defend  and hold  Entercom  and ECI and their  officers,  directors,
partners,  employees and affiliates  harmless from,  against and with respect to
any and all loss, damage, claim,  obligation,  assessment,  cost, liability, and
expense (including, without limitation, reasonable attorney's fees and costs and
expenses incurred in investigating,  preparing, defending against or prosecuting
any  litigation  or claim,  action,  suit,  proceeding or demand) of any kind or
character (a "Loss") incurred, suffered, sustained or required to be paid by any
of them and resulting from, related to or arising out of:


                                       39

<PAGE>
                           (a)   any   breach   of   any   of   the   covenants,
                  representations or warranties made by ARS or ARS License in or
                  pursuant to this Agreement or in any Collateral Document.

                           (b) any  failure by ARS or ARS  License to perform or
                  observe,  or to have  performed  or  observed,  in  full,  any
                  covenant,  agreement  or condition to be performed or observed
                  by  it  pursuant  to  this  Agreement  or  in  any  Collateral
                  Document;

                           (c) any and all  obligations  of ARS or ARS  License,
                  except for  obligations  assumed or  required to be assumed by
                  Entercom or ECI under the terms of this Agreement; or

                           (d) ARS's or ARS License's  operation or ownership of
                  the ARS Assets prior to the Adjustment Time, including any and
                  all   obligations   and   liabilities    arising   under   the
                  Authorizations related to the Kansas City Stations, the Kansas
                  City  Contracts  and the Kansas  City Leases  which  accrue or
                  relate to a period of time prior to the Adjustment Time; or

                           (e) all  Environmental  Liabilities and Costs related
                  to the  Kansas  City  Stations;  provided,  however,  that  no
                  indemnity   is   required   hereunder   in  respect  of  those
                  environmental  conditions disclosed on Schedule 4.1.20 or in a
                  Phase  I  Environmental   Assessment  or  additional   testing
                  conducted  pursuant to Section 6.1.4 hereof to the extent such
                  conditions are so disclosed; or

                           (f) ARS's or ARS License's  operation or ownership of
                  the KLOU Assets after the Adjustment  Time,  including any and
                  all  liabilities  arising under the KLOU  Authorizations,  the
                  KLOU Contracts  and/or the KLOU Leases,  assumed by ARS or ARS
                  License which accrue after the Adjustment Time or which relate
                  to or arise out of events occurring after the Adjustment Time.

                  9.4.2 BY ENTERCOM AND ECI.  Entercom and ECI shall  indemnify,
defend and hold ARS and ARS License  and their  officers,  directors,  partners,
employees and affiliates  harmless from, against and with respect to any and all
items of Loss  incurred,  suffered,  sustained  or required to be paid by any of
them and resulting from, related to or arising out of:

                           (a)   any   breach   of   any   of   the   covenants,
                  representations  or warranties  made by Entercom and ECI in or
                  pursuant to this Agreement or any Collateral Document;

                           (b) any  failure  by  Entercom  or ECI to  perform or
                  observe,  or to have  performed  or  observed,  in  full,  any
                  covenant,  agreement  or condition to be performed or observed
                  by it pursuant to this Agreement or any Collateral Document;

                           (c) any  and  all  obligations  of  Entercom  or ECI,
                  except for  obligations  assumed or  required to be assumed by
                  ARS or ARS License under the terms of this Agreement; or

                           (d) Entercom's or ECI's operation or ownership of the
                  KLOU Assets prior to the  Adjustment  Time,  including any and
                  all  obligations  and  liabilities   arising  under  the  KLOU
                  Authorizations,  the KLOU  Contracts and the KLOU Leases which
                  accrue or relate to a period of time  prior to the  Adjustment
                  Time; or

                                       40
<PAGE>
                           (e) all  Environmental  Liabilities and Costs related
                  to KLOU;  provided,  however,  that no  indemnity  is required
                  hereunder  in  respect  of  those   environmental   conditions
                  disclosed  on  Schedule  4.2.20 or in a Phase I  Environmental
                  Assessment or additional testing conducted pursuant to Section
                  6.3.4 hereof to the extent such  conditions  are so disclosed;
                  or
                           (f) Entercom's or ECI's operation or ownership of the
                  ARS Assets after the  Adjustment  Time,  including any and all
                  liabilities arising under the Kansas City Authorizations,  the
                  Kansas City  Contracts  and/or Kansas City Leases,  assumed by
                  Entercom  or ECI which  accrue  after the  Adjustment  Time or
                  which  relate to or arise out of  events  occurring  after the
                  Adjustment Time.

                  9.4.3  NOTICE AND  PROCEDURE  IN  CONNECTION  WITH THIRD PARTY
CLAIMS. If any party has a claim for  indemnification  hereunder (such party, an
"Indemnitee")  arising  out of any  claim  or  liability  which is  asserted  or
threatened  against it, or any action,  suit or  proceeding  is commenced by any
third party  against any  Indemnitee  which might result in any  indemnification
obligations  hereunder  on behalf of any  other  party  (such  other  party,  an
"Indemnitor"),  such Indemnitee shall, within twenty (20) business days from the
receipt of same,  give written notice thereof to each such  Indemnitor  together
with a brief  statement of the basis of the claim and a copy of any complaint or
other documents relating to such claim, provided,  however, that failure to give
such notice  within such twenty (20)  business  day period  shall not affect the
liability of Indemnitor  hereunder unless the failure to give such notice within
such period  materially  and adversely  affects  Indemnitor's  ability to defend
against the claim giving rise to Indemnitee's  claim for  indemnification  or to
cure the default giving rise to such claim. Within twenty (20) days from receipt
of such notice,  the Indemnitor  shall give the Indemnitee  written notice as to
whether the Indemnitor elects to contest any such claim or liability;  provided,
however,  that  during the  interim,  the  Indemnitee  shall be entitled to take
reasonable  action  (which  shall not include  settlement)  with respect to such
claim which it deems necessary to protect against further damage or default with
respect thereto. If an Indemnitor elects to contest any such claim or liability,
it shall be at the cost and expense of the  Indemnitor  and using  professionals
chosen by the  Indemnitor.  The Indemnitee may participate in the defense of any
claim  or  liability  that an  Indemnitor  has  elected  to  contest,  but  such
participation  shall be at its own expense.  If the Indemnitor does not elect to
assume control or otherwise participate in the defense of any third party claim,
it shall be bound by the results obtained by the Indemnitee with respect to such
claim.

                  9.4.4   EXCLUSIVITY.   Except  as   provided  in  Section  9.1
concerning  termination  of this Agreement and Section 9.3 concerning the rights
of the parties to specific performance,  the right to indemnification  hereunder
shall be the  exclusive  post-closing  remedy  for all  claims of damages of any
party in connection  with any breach by any other party of its  representations,
warranties or covenants.



                                       41

<PAGE>



                  9.4.5   LIMITATIONS.   Any  claim   asserted  for  damages  or
indemnification  hereunder must be submitted to the Indemnitor in writing within
the time periods set forth in Section 11.3 of this  Agreement and any such claim
not so  asserted  shall be waived and  barred.  No party  shall be  entitled  to
indemnification  hereunder  unless  the  aggregate  amount  of  its  claims  for
indemnification  exceeds $75,000, in which event such party shall be indemnified
for  the  entire  amount  owed.  This  amount  shall  have  no  bearing  on  any
determination as to what constitutes "material" for purposes of this Agreement.

                  9.4.6  POSTPONEMENT  OF  CLOSING.  Except as set forth in this
Article IX, no party shall have the right to terminate this Agreement or fail to
close  under  this   Agreement.   In  the  event  that  any  of  the  covenants,
representations  or warranties  of a party have not been  satisfied or have been
breached and such covenant is capable of being satisfied or breach is capable of
being cured  within a  reasonable  time (not to exceed six (6) months)  then the
other   non-defaulting   parties  affected  thereby  may  by  agreement  of  all
non-defaulting  parties  elect to postpone  Closing until such covenant has been
satisfied  or such  breach  has been  cured for a period  not to exceed  six (6)
months (the  "Postponement  Period").  In the  alternative,  such  parties  may,
subject  to  Sections  8.1  and  8.6  hereof,  consummate  the  Closing  without
postponement and seek  indemnification  under this Article IX. In the event such
covenant  has not been  satisfied  or such  breach  not  cured at the end of the
Postponement  Period the parties  shall be required  to  consummate  the Closing
hereunder and the  non-defaulting  parties shall be entitled to  indemnification
under this Article IX.

                                    ARTICLE X

                                 ASSET EXCHANGE


         10.1  INTENT.  It is the intent of the parties that the exchange of the
KLOU Assets for the ARS Assets and the ARS Cash  Consideration  will  qualify to
the maximum extent possible as like-kind  exchanges  pursuant to Section 1031 of
the Code. It is the intent of the parties that the relinquishment by ARS and ARS
License  of  the  Relinquished  Stations  under  the  JACOR  Agreement  and  the
acquisition  of the KLOU Assets under this Agreement will qualify to the maximum
extent possible as like-kind exchanges pursuant to Section 1031 of the Code.

         10.2 ARS AND ARS  LICENSE  SECTION  1031  ASSET  EXCHANGE.  ARS and ARS
License  desire to effect the transfer and  conveyance of the ARS Assets as part
of an exchange  under Section 1031 of the Code. In order to effect the like-kind
exchange, ARS hereby gives notice to Entercom and ECI of its intention to effect
the like-kind exchange through the use of a "qualified  intermediary" as defined
in Treas. Reg. ss. 1.1031(k)-1(g)(4).  ARS and ARS License may at any time at or
prior to Closing  assign  their  rights  under this  Agreement  to a  "qualified
intermediary"  subject to all of  Entercom's  and ECI's  rights and  obligations
hereunder,  and shall promptly  provide written notice of such assignment to all
parties hereto. Entercom and ECI shall cooperate with all reasonable requests of
ARS and ARS License and the "qualified  intermediary" in arranging and effecting
the deferred like-kind exchange as


                                       42

<PAGE>



one which  qualifies  under  Section  1031 of the  Code.  Without  limiting  the
generality of the  foregoing,  Entercom and ECI shall  promptly  acknowledge  in
writing  the  notification  by ARS  and ARS  License  of the  assignment  to the
"qualified intermediary" of their rights hereunder. To the extent ARS and/or ARS
License assign their rights under either or both of this Agreement and the JACOR
Agreement  (to the extent such rights under the JACOR  Agreement  pertain to the
Kansas City Stations) to a "qualified  intermediary," ARS and/or ARS License, as
the case may be, shall cause the "qualified  intermediary"  (i) to exercise such
rights for the benefit of Entercom and ECI, and (ii) immediately upon closing of
the  acquisition of the Kansas City Stations by Entercom and ECI, to assign such
rights to  Entercom  and ECI to the  extent  permitted  by the JACOR  Agreement;
provided however,  that if such assignment is prohibited by the JACOR Agreement,
ARS and ARS License shall cause such rights to be enforced to the fullest extent
permitted by the terms thereof for the benefit of Entercom and ECI.

         10.3 ENTERCOM AND ECI SECTION 1031 ASSET EXCHANGE. Entercom and ECI may
elect to effect the transfer and  conveyance  of that portion of the KLOU Assets
properly  allocable to the ARS Cash  Consideration  as part of an exchange under
Section 1031 of the Code. If Entercom and ECI so elect, each of Entercom and ECI
(i) may at any time at or prior to Closing assign its rights with respect to the
Cash  Consideration  under this  Agreement  to a  "qualified  intermediary"  (as
defined in Treas. Reg. ss. 1.1031(k)-1(g)(4)),  subject to all of the rights and
obligations  of ARS and ARS License  hereunder and (ii) shall  promptly  provide
written  notice of such  assignment to all parties  hereto.  ARS and ARS License
shall  cooperate  with  all  reasonable  requests  of  Entercom  and ECI and the
"qualified  intermediary"  in arranging  and effecting the exchange as one which
qualifies under Section 1031 of the Code. Without limiting the generality of the
foregoing,  ARS and ARS License shall (i) promptly provide Entercom and ECI with
written  acknowledgment  of such  notice and (ii) at  Closing,  pay the ARS Cash
Consideration  to the "qualified  intermediary"  rather than to Entercom and ECI
(which  payment shall  discharge  the  obligation of ARS and ARS License to make
payment of the ARS Cash Considerations hereunder).

         10.4  ADVISORS.  Notwithstanding  the provisions of this Article X, the
parties to this  Agreement will rely solely on their own advisors in determining
the tax consequences of the transactions contemplated by this Agreement and each
party is not relying, and will not rely, on any representations or assurances of
any other party  regarding  such  consequences  other than the  representations,
warranties, covenants and agreements set forth in writing in this Agreement or


                                       43

<PAGE>



furnished  pursuant to the provisions hereof.  Notwithstanding  anything in this
Agreement  to the  contrary,  the  obligations  of the parties set forth in this
Article X shall survive the Closing.

                                   ARTICLE XI

                               GENERAL PROVISIONS


         11.1 EXPENSES OF THE PARTIES. Except as otherwise specifically provided
herein, all expenses involved in the preparation, authorization and consummation
of this  Agreement  including,  without  limitation,  all fees and  expenses  of
agents, representatives,  counsel and accountants in connection therewith and in
connection with applications to the Commission hereunder,  shall be borne solely
by the party who shall have incurred the same, and the other party shall have no
liability in respect thereof. The foregoing  notwithstanding,  the parties agree
that any filing fees of the Commission  relating to the filing of the Assignment
Applications  shall be divided  equally  between the  assignor  and the assignee
under each respective Assignment Application.

         11.2 BROKERS.  Each party hereto  represents  and warrants to the other
parties hereto that it has not incurred any obligation or liability,  contingent
or otherwise, for brokerage or finders' fees or agents commissions or other like
payment in  connection  with this  Agreement  or the  transactions  contemplated
hereby  for which the other  parties  will have any  liability,  and each  party
hereto agrees to indemnify and hold the other parties  hereto  harmless  against
and in  respect  to any such  obligation  or  liability  based in any way on any
agreement,  arrangement or understanding claimed to have been made by such party
with any third party.

         11.3     SURVIVAL OF COVENANTS, REPRESENTATIONS AND WARRANTIES.
The  provisions  hereof  which by their terms are to be  performed  and observed
after the Closing Date and the several representations,  warranties, indemnities
and  agreements of the parties herein  contained  shall survive the Closing Date
hereunder for a period of two (2) years and shall remain effective and unaltered
or unimpaired for such period by any investigation  that may have been or may be
made at any time prior to Closing by or on behalf of any party  except  that the
representations   concerning  title,  ERISA,  environmental  matters  and  taxes
contained in Sections 4.1.8, 4.1.17,  4.1.20,  4.1.24, 4.2.8, 4.2.17, 4.2.20 and
4.2.24 and the provisions of Sections  9.4.1(e) and 9.4.2(e) shall survive until
ninety (90) days after the expiration of the applicable  statutes of limitation,
and the  provisions  of  Sections  2.2 and  Article X shall  survive the Closing
without limitation.

         11.4  CONFIDENTIALITY.  Each party agrees that, until such time as this
Agreement is made public by filing with the Commission,  it will not disclose to
any  third  party  the fact of or  content  of this  Agreement  or the  possible
exchange of the radio stations involved without the express prior consent of the
other parties. No public  announcement  (including an announcement to employees)
or press release  concerning the transactions  provided for herein shall be made
by any party without the prior written approval of the other parties,  except as
provided or required


                                       44

<PAGE>



by law  which  consent  shall  not  be  unreasonably  withheld,  or  delayed  or
conditioned.  Notwithstanding  anything to the contrary  herein,  each party and
such  party's  Affiliates  shall,  in  accordance  with their  respective  legal
obligations,  including but not limited to filings  permitted or required by the
federal securities laws, the New York Stock Exchange, the NASDAQ National Market
and other  similar  regulatory  bodies,  make (a) such press  releases and other
public  statements  and  announcements  as such  party  or its  Affiliates  deem
necessary  and  appropriate  to  meet  its  legal  disclosure   requirements  in
connection with this Agreement and the transactions contemplated hereby, and (b)
any and all  statements  such party deems in its sole judgment to be appropriate
in any and all regulatory filings,  prospectuses and other similar documents. To
the extent practicable, the party proposing to make such press release or public
statement  will consult in advance with the other  regarding the nature,  extent
and form of such press release or public statement.

         11.5  AMENDMENT  AND  WAIVER.  This  Agreement  cannot  be  changed  or
terminated  orally.  Any  amendment  or  modification  hereof must be in writing
signed by the party against whom enforcement is sought.  No waiver of compliance
with any  provision or  condition  hereof,  and no consent  provided for herein,
shall be effective unless evidenced by an instrument in writing duly executed by
the party sought to be charged with such waiver or consent.

         11.6 EFFECT OF THIS  AGREEMENT.  This  Agreement  sets forth the entire
understanding  of the parties and  supersedes  any and all prior written or oral
agreements,  arrangements  or  understandings  relating  to the  subject  matter
hereof.  No  representation,  promise,  inducement or statement of intention has
been  made  by  either  party  which  is not  embodied  in the  above-referenced
agreements,  and neither  party shall be bound by, or be liable for, any alleged
representation,  promise,  inducement  or statement  of  intention  not embodied
herein unless same shall have been made subsequent  hereto,  shall be in writing
and shall be signed by the party to be charged  therewith.  This Agreement shall
be binding  upon and inure to the benefit of the  parties  and their  respective
successors and assigns.

         11.7  TERMS  GENERALLY.  (a)  Words  in the  singular  shall be held to
include  the  plural  and vice  versa and words of one  gender  shall be held to
include  the other  genders as the  context  requires,  (b) the terms  "hereof,"
"herein," and  "herewith" or words of similar  import  shall,  unless  otherwise
stated,  be  construed  to refer to this  Agreement  as a whole  (including  all
Schedules  hereto) and not to any particular  provision of this  Agreement,  and
Article, Section,  Paragraph and Schedule references shall be construed to refer
to the Articles,  Sections,  Paragraphs and Schedules to this  Agreement  unless
otherwise specified, and (c) the word "or" shall not be exclusive.

         11.8  HEADINGS.  The article or section  headings of this Agreement are
for  convenience  of reference  only and do not form a part of and do not in any
way modify, interpret or construe the intention of the parties.



                                       45

<PAGE>



         11.9  COUNTERPARTS.  This  Agreement  may be  executed  in one or  more
counterparts  and all such  counterparts  shall be construed as one and the same
instrument.  Executed  documents  transmitted  by telecopier  shall be valid and
binding.

         11.10 GOVERNING LAW. The construction and performance of this Agreement
shall be governed by the laws of New York  without  reference to its conflict of
law rules.

         11.11 BULK SALES LAWS. Each party hereto waives compliance by the other
parties  hereto with the  provisions  of the "bulk sales" or similar laws of any
state.  Each party agrees to indemnify  the other  parties  hereto and hold them
harmless from any and all loss,  cost,  damages and expenses  (including but not
limited to reasonable attorney's fees) sustained by the indemnified parties as a
result of any failure of the indemnifying  party to comply with any "bulk sales"
or similar laws.

         11.12 ASSIGNMENT.  Except as otherwise provided herein,  this Agreement
and the rights and obligations hereunder may not be assigned by any party hereto
without the prior  written  consent of the other parties  hereto,  which consent
shall not be unreasonably withheld. Any party may assign all or any part of this
Agreement or the rights and obligations hereunder to an Affiliate, provided that
such assignment shall not relieve such party of its obligations hereunder.

         11.13 NOTICES. Any notice,  report,  demand, waiver or consent required
or permitted  hereunder shall be in writing and shall be given by hand delivery,
by prepaid  registered or certified mail, with return receipt  requested,  by an
established  national  overnight  courier  providing  proof of delivery for next
business day delivery or by telecopy addressed as follows:
If to ARS or ARS License:


                           116 Huntington Avenue
                           Boston, Massachusetts 02116
                           Attention:  Steven B. Dodge, President
                           Telecopier Number:  (617) 375-7575


                                       46

<PAGE>

with a copy to:
                           Sullivan & Worcester LLP
                           One Post Office Square
                           Boston, Massachusetts 02109
                           Attention:  Norman A. Bikales, Esq.
                           Telecopier Number:  (617) 338-2380

                           Dow, Lohnes & Albertson, PLLC
                           1220 New Hampshire Avenue, N.W.
                           Suite 800
                           Washington, D.C. 20036-6802
                           Attention:  John Pomeroy, Esq.
                           Telecopier Number:  (202) 776-2222

If to Entercom or ECI:
                           Entertainment Communications, Inc.
                           401 City Avenue, Suite 409
                           Bala Cynwyd, PA 19004
                           Attention:  Joseph M. Field, President
                           Telecopier Number:  (610) 660-5641

with a copy to:
                           Joseph D. Sullivan, Esq.
                           Latham & Watkins
                           1001 Pennsylvania Avenue, N.W.
                           Suite 1300
                           Washington, D.C. 20004
                           Telecopier Number: (202) 637-2201


                  The date of any  such  notice  and  service  thereof  shall be
deemed  to be:  (i) the  day of  delivery  if hand  delivered  or  delivered  by
overnight  courier;  (ii) the day of delivery as indicated on the return receipt
if dispatched by mail, or (iii) the date of telecopy  transmission  as indicated
on the telecopier  transmission  report provided that any telecopy  transmission
shall not be effective  unless a paper copy is sent by overnight  courier on the
date of the telecopy  transmission.  Either party may change its address for the
purpose  of notice  by giving  notice  of such  change  in  accordance  with the
provisions of this Section.

         11.14 NO THIRD PARTY BENEFICIARIES.  Nothing in this Agreement, whether
expressed  or implied,  is intended to: (i) confer any rights or remedies on any
person other than the parties  hereto and any  successors or permitted  assigns;
(ii) relieve or discharge  the  obligation  or liability of any third party;  or
(iii) give any third party any right of subrogation or action against any of the
parties hereto.

                                       47


                      [THIS SPACE INTENTIONALLY LEFT BLANK]

<PAGE>

                  IN WITNESS  WHEREOF,  the  parties  hereto  have  caused  this
Agreement  to be signed by their duly  authorized  corporate  officers and their
respective  corporate  seals  thereunto  affixed on this the date first  written
above.

                                     AMERICAN RADIO SYSTEMS CORPORATION


                                     By:
                                        Name:
                                        Title:


                                     AMERICAN RADIO SYSTEMS LICENSE CORP.


                                     By:
                                        Name:
                                        Title:


                                    ENTERTAINMENT COMMUNICATIONS, INC.


                                     By:
                                        Name:
                                        Title:


                                     ECI LICENSE COMPANY L.P.


                                     By:  Entertainment Communications, Inc.,
                                          Its General Partner



                                     By:
                                        Name:
                                        Title:



                                       48
<PAGE>



                                    Schedules


Schedule 4.1.4
                           Kansas City Property
Schedule 4.1.5
                           Kansas City Leases
Schedule 4.1.6
                           Kansas City Contracts
Schedule 4.1.7             Intellectual Property
Schedule 4.1.8             Title to ARS Property (Permitted Encumbrances)
Schedule 4.1.10            ARS Authorizations
Schedule 4.1.11            Permits and Licenses
Schedule 4.1.12            ARS Compliance with Laws
Schedule 4.1.13            ARS Litigation and Claims
Schedule 4.1.14            ARS Labor Relations
Schedule 4.1.15            ARS Employment Contracts
Schedule 4.1.17            ARS Employee Plans
Schedule 4.1.19            Trade and Barter
Schedule 4.1.20            ARS Environmental Matters
Schedule 4.1.21            ARS Financial Information
Schedule 4.1.23            Kansas City Real Property
Schedule 4.2.4             KLOU Property
Schedule 4.2.5             KLOU Leases
Schedule 4.2.6             KLOU Contracts
Schedule 4.2.7             KLOU Intellectual Property
Schedule 4.2.8             KLOU Title to Property (Permitted Encumbrances)
Schedule 4.2.9             Defaults
Schedule 4.2.10            KLOU Authorizations
Schedule 4.2.12            Entercom Compliance with Laws
Schedule 4.2.13            Entercom Litigation and Claims
Schedule 4.2.14            Labor Relations
Schedule 4.2.15            KLOU Employment Contracts
Schedule 4.2.17            KLOU Employee Plans
Schedule 4.2.19            Trade or Barter Contracts
Schedule 4.2.20            KLOU Environmental Disclosure
Schedule 4.2.21            KLOU Financial Information
Schedule 4.2.23            Real Property


                                      

<PAGE>

<TABLE>
<CAPTION>
                                                               


                                TABLE OF CONTENTS
<S>                                                                         <C>


                                                                          Page


RECITALS..................................................................  1

AGREEMENT.................................................................  2


                                    ARTICLE I
DEFINITIONS...............................................................  3


                                   ARTICLE II
ASSET EXCHANGE............................................................ 10
        2.1     TRANSFER OF ASSETS........................................ 10
        2.2     ALLOCATION OF VALUES...................................... 10
        2.3     NON-ASSIGNABLE CONTRACTS.................................. 12


                                   ARTICLE III
LIABILITIES............................................................... 12
        3.1     ASSUMPTION OF LIABILITIES BY ARS AND ARS LICENSE.......... 12
        3.2     ASSUMPTION OF LIABILITIES BY ENTERCOM AND ECI............. 13
        3.3     ASSUMPTION OF EMPLOYEE OBLIGATIONS........................ 14
        3.4     OTHER LIABILITIES......................................... 15
        3.5     LIMITATION................................................ 15


                                   ARTICLE IV
REPRESENTATIONS AND WARRANTIES............................................ 15
        4.1     BY ARS AND ARS LICENSE.................................... 15
                4.1.1        CORPORATE STANDING........................... 15
                4.1.2        AUTHORIZATION OF AGREEMENT; NO BREACH........ 16
                4.1.3        QUALIFICATION................................ 16
                4.1.4        ARS PROPERTY................................. 16
                4.1.5        KANSAS CITY LEASES........................... 17
                4.1.6        KANSAS CITY CONTRACTS........................ 17
                4.1.7        INTELLECTUAL PROPERTY........................ 17
                4.1.8        TITLE TO PROPERTY............................ 17
                4.1.9        NO DEFAULTS.................................. 18
                4.1.10       AUTHORIZATIONS AND APPLICATIONS.............. 18
                4.1.11       PERMITS AND LICENSES......................... 20

                                        i

<PAGE>

                              


                4.1.12       COMPLIANCE WITH LAWS......................... 20
                4.1.13       LITIGATION AND CLAIMS........................ 20
                4.1.14       LABOR RELATIONS.............................. 21
                4.1.15       EMPLOYMENT CONTRACTS......................... 22
                4.1.16       DAMAGE TO ASSETS............................. 22
                4.1.17       EMPLOYEE BENEFIT AND RETIREMENT PLANS........ 22
                4.1.18       EMPLOYEES.................................... 23
                4.1.19       TRADE OR BARTER.............................. 23
                4.1.20       ENVIRONMENTAL COMPLIANCE,POLYCHLORINATED
                             BIPHENYLS, ASBESTOS AND OTHER TOXIC
                             OR HAZARDOUS SUBSTANCES...................... 23
                4.1.21       FINANCIAL AND OTHER INFORMATION.............. 24
                4.1.22       CONDITION OF EQUIPMENT....................... 24
                4.1.23       REAL PROPERTY................................ 25
                4.1.24       NO MATERIAL ADVERSE CONDITION................ 26
                4.1.25       PAYMENT OF TAXES............................. 26
                4.1.26       REQUIRED CONSENTS............................ 27
                4.1.27       MATERIAL STATEMENTS AND OMISSIONS;
                             ABSENCE OF EVENTS............................ 27
        4.2     BY ENTERCOM AND ECI....................................... 27
                4.2.1        CORPORATE STANDING........................... 27
                4.2.2        AUTHORIZATION OF AGREEMENT; NO BREACH........ 28
                4.2.3        QUALIFICATION................................ 28
                4.2.4        KLOU PROPERTY................................ 29
                4.2.5        KLOU LEASES.................................. 29
                4.2.6        KLOU CONTRACTS............................... 29
                4.2.7        INTELLECTUAL PROPERTY........................ 29
                4.2.8        TITLE TO PROPERTY............................ 29
                4.2.9        NO DEFAULTS.................................. 30
                4.2.10       AUTHORIZATIONS AND APPLICATIONS.............. 30
                4.2.11       PERMITS AND LICENSES......................... 31
                4.2.12       COMPLIANCE WITH LAWS......................... 31
                4.2.13       LITIGATION AND CLAIMS........................ 32
                4.2.14       LABOR RELATIONS.............................. 32
                4.2.15       EMPLOYMENT CONTRACTS......................... 33
                4.2.16       DAMAGE TO ASSETS............................. 33
                4.2.17       EMPLOYEE BENEFIT AND RETIREMENT PLANS........ 33
                4.2.18       EMPLOYEES.................................... 34

                                       ii

<PAGE>


                                                                         Page


                4.2.19       TRADE OR BARTER.............................. 34
                4.2.20       ENVIRONMENTAL COMPLIANCE,  POLYCHLORINATED
                             BIPHENYLS, ASBESTOS AND OTHER TOXIC
                             OR HAZARDOUS SUBSTANCES...................... 34
                4.2.21       FINANCIAL AND OTHER INFORMATION.............. 35
                4.2.22       CONDITION OF EQUIPMENT....................... 35
                4.2.23       REAL PROPERTY................................ 36
                4.2.24       NO MATERIAL ADVERSE CONDITION................ 37
                4.2.25       PAYMENT OF TAXES............................. 37
                4.2.26       REQUIRED CONSENTS............................ 37


                                    ARTICLE V
CONDITIONS................................................................ 38
        5.1     COMMISSION CONSENT AND APPROVAL AND HSR ACT

                WAITING PERIOD............................................ 38
        5.2     CONDITIONS OF ARS AND ARS LICENSE......................... 39
        5.3     CONDITIONS OF ENTERCOM AND ECI............................ 40


                                   ARTICLE VI
COVENANTS AND OPERATIONS PRIOR TO CLOSING................................. 41
        6.1     AFFIRMATIVE COVENANTS OF ARS and ARS LICENSE.............. 41
                6.1.1        CONDUCT OF BUSINESS.......................... 41
                6.1.2        ENTERCOM CONSENT AND REVIEW; NOTIFICATION OF
                             CERTAIN MATTERS.............................. 41
                6.1.3        MATERIAL OPERATIONAL CHANGES................. 42
                6.1.4        ENVIRONMENTAL ASSESSMENT..................... 42
                6.1.5        ARS STATION EMPLOYEES........................ 43
                6.1.6        TITLE REPORTS................................ 44
                6.1.7        TAXES........................................ 45
                6.1.8        SCHEDULES.................................... 45
                6.1.9        INTENTION TO EMPLOY.......................... 46
                6.1.10       BEST EFFORTS TO CLOSE JACOR AGREEMENT;
                             ENFORCEMENT OF RIGHTS........................ 46

                                       iii

<PAGE>


                                                                          Page


                6.1.11       JACOR AGREEMENT NOTIFICATIONS................ 46
        6.2     NEGATIVE COVENANTS OF ARS AND ARS LICENSE................. 47
                6.2.1        KANSAS CITY LEASES AND CONTRACTS............. 47
                6.2.2        AUTHORIZATIONS............................... 47
                6.2.3        DISPOSE OF ASSETS............................ 47
                6.2.4        LIENS........................................ 47
                6.2.5        ADVERTISING CONTRACTS........................ 47
                6.2.6        BROADCAST OPERATIONS......................... 48
                6.2.7        DAMAGE TO ARS ASSETS......................... 48
                6.2.8        REQUIREMENTS OF LAW.......................... 48
                6.2.9        JACOR AGREEMENT.............................. 48
                6.2.10       PERFORMANCE OF ARS COVENANTS................. 48
        6.3     AFFIRMATIVE COVENANTS OF ENTERCOM AND ECI................. 49
                6.3.1        CONDUCT OF BUSINESS.......................... 49
                6.3.2        ARS REVIEW; NOTIFICATION OF CERTAIN MATTERS
                 ......................................................... 49
                6.3.3        MATERIAL OPERATIONAL CHANGES................. 49
                6.3.4        ENVIRONMENTAL ASSESSMENT..................... 50
                6.3.5        KLOU EMPLOYEES............................... 51
                6.3.6        TAXES........................................ 51
                6.3.7        FINAL SCHEDULES.............................. 51
                6.3.8        INTENTION TO EMPLOY.......................... 51
        6.4     NEGATIVE COVENANTS OF ENTERCOM AND ECI.................... 52
                6.4.1        KLOU LEASES AND CONTRACTS.................... 52
                6.4.2        AUTHORIZATIONS............................... 52
                6.4.3        DISPOSE OF ASSETS............................ 53
                6.4.4        LIENS........................................ 53
                6.4.5        ADVERTISING CONTRACTS........................ 53
                6.4.6        BROADCAST OPERATIONS......................... 53
                6.4.7        DAMAGE TO KLOU ASSETS........................ 53
                6.4.8        REQUIREMENTS OF LAW.......................... 53
        6.5     NO CONTROL................................................ 53


                                   ARTICLE VII
ACTIONS PRIOR TO CLOSING.................................................. 54
        7.1     APPLICATION TO COMMISSION................................. 54
        7.2     HART-SCOTT-RODINO NOTIFICATION............................ 54
        7.3     INSPECTION................................................ 55
        7.4     CONFIDENTIALITY........................................... 56
        7.5     EMPLOYEE DIVISION......................................... 56


                                       iv

<PAGE>


                                                                          Page


                                  ARTICLE VIII
CLOSING................................................................... 56
        8.1     CLOSING................................................... 56
        8.2     PRORATIONS................................................ 57
                8.2.1        GENERALLY.................................... 57
                8.2.2        CERTIFICATE OF PRORATIONS.................... 57
                8.2.3        ARBITRATION.................................. 58
                8.2.4        PAYMENTS..................................... 58
                8.2.5        JACOR PRORATIONS............................. 58
        8.3     CLOSING DELIVERIES TO ARS AND ARS LICENSE................. 58
                8.3.1        BILL OF SALE................................. 58
                8.3.2        AUTHORIZATION ASSIGNMENT..................... 59
                8.3.3        POSSESSION................................... 59
                8.3.4        BOARD RESOLUTIONS............................ 59
                8.3.5        OFFICER'S CERTIFICATE........................ 59
                8.3.6        ASSUMPTION AGREEMENTS........................ 59
                8.3.7        REQUIRED CONSENTS............................ 60
                8.3.8        UCC SEARCHES................................. 60
                8.3.9        OPINION OF COUNSEL........................... 60
        8.4     CLOSING DELIVERIES TO ENTERCOM AND ECI.................... 60
                8.4.1        BILL OF SALE................................. 60
                8.4.2        AUTHORIZATION ASSIGNMENT..................... 61
                8.4.3        POSSESSION................................... 61
                8.4.4        BOARD RESOLUTIONS............................ 61
                8.4.5        OFFICER'S CERTIFICATES....................... 61
                8.4.6        ASSUMPTION AGREEMENTS........................ 61
                8.4.7        REQUIRED CONSENTS............................ 62
                8.4.8        UCC SEARCHES................................. 62
                8.4.9        CASH CONSIDERATION........................... 62
                8.4.10       OPINION OF COUNSEL........................... 62
                8.4.11       RELIANCE ON JACOR............................ 62
        8.5     COVENANTS OF FURTHER ASSURANCES........................... 62
        8.6     RISK OF LOSS; DAMAGE TO PROPERTY.......................... 63
        8.7     TAXES ON TRANSACTION...................................... 63


                                   ARTICLE IX
TERMINATION, DEFAULT AND INDEMNIFICATION.................................. 64
        9.1     TERMINATION............................................... 64
        9.2     EFFECT OF TERMINATION..................................... 65
        9.3     REMEDIES.................................................. 65
                9.3.1        BREACH BY ENTERCOM OR ECI.................... 65

                                        v

<PAGE>


                                                                          Page

                9.3.2        BREACH BY ARS OR ARS LICENSE................. 65
        9.4     INDEMNIFICATION........................................... 66
                9.4.1        BY ARS AND ARS LICENSE....................... 66
                9.4.2        BY ENTERCOM AND ECI.......................... 68
                9.4.3        NOTICE AND PROCEDURE IN CONNECTION

                             WITH THIRD PARTY CLAIMS...................... 69
                9.4.4        EXCLUSIVITY.................................. 70
                9.4.5        LIMITATIONS.................................. 70
                9.4.6        POSTPONEMENT OF CLOSING...................... 70


                                    ARTICLE X
ASSET EXCHANGE............................................................ 71
        10.1    INTENT.................................................... 71
        10.2    ARS AND ARS LICENSE SECTION 1031 ASSET EXCHANGE........... 71
        10.3    ENTERCOM AND ECI SECTION 1031 ASSET EXCHANGE.............. 72
        10.4    ADVISORS.................................................. 73


                                   ARTICLE XI
GENERAL PROVISIONS........................................................ 74
        11.1    EXPENSES OF THE PARTIES................................... 74
        11.2    BROKERS................................................... 74
        11.3    SURVIVAL OF COVENANTS, REPRESENTATIONS AND
        WARRANTIES........................................................ 74
        11.4    CONFIDENTIALITY........................................... 75
        11.5    AMENDMENT AND WAIVER...................................... 76
        11.6    EFFECT OF THIS AGREEMENT.................................. 76
        11.7    TERMS GENERALLY........................................... 76
        11.8    HEADINGS.................................................. 77
        11.9    COUNTERPARTS.............................................. 77
        11.10   GOVERNING LAW............................................. 77
        11.11   BULK SALES LAWS........................................... 77
        11.12   ASSIGNMENT................................................ 77
        11.13   NOTICES................................................... 78
        11.14   NO THIRD PARTY BENEFICIARIES.............................. 79

</TABLE>

                                       vi




                                                                   EXHIBIT 10.14








                          ASSET PURCHASE AGREEMENT



                                  by and among




                       AMERICAN RADIO SYSTEMS CORPORATION

                      AMERICAN RADIO SYSTEMS LICENSE CORP.

                                       and

                       ENTERTAINMENT COMMUNICATIONS, INC.




                               Dated July 18, 1997

<PAGE>
                                TABLE OF CONTENTS

                                                                            Page

                                    ARTICLE I

DEFINITIONS.................................................................. 2


                                   ARTICLE II

SALE AND PURCHASE.............................................................6 
2.1.    TRANSFER OF ASSETS....................................................6
2.2.    PURCHASE PRICE........................................................6
2.3.    PAYMENT...............................................................6
2.4.    APPRAISAL.............................................................6

                                   ARTICLE III

LIABILITIES...................................................................7
3.1.    ASSUMPTION OF LIABILITIES.............................................7
3.2.    LIABILITIES OF ARS....................................................8

                                   ARTICLE IV

REPRESENTATIONS AND WARRANTIES................................................8
4.1.    ARS AND ARS LICENSE...................................................8
4.2.    ENTERCOM REPRESENTATIONS.............................................20

                                    ARTICLE V

CONDITIONS...................................................................21
5.1.    COMMISSION CONSENT AND APPROVAL AND HSR ACT
        WAITING PERIOD.......................................................21
5.2.    ENTERCOM'S CONDITIONS................................................22
5.3.    ARS AND ARS LICENSE CONDITIONS.......................................23
5.4.    NONOCCURRENCE OF CONDITIONS..........................................24

                                   ARTICLE VI

OPERATIONS PENDING CLOSING...................................................24
6.1.    AFFIRMATIVE COVENANTS OF ARS AND ARS LICENSE.........................24
6.2.    NEGATIVE COVENANTS OF ARS AND ARS LICENSE............................28
6.3.    NO CONTROL BY ENTERCOM...............................................31

                                   ARTICLE VII

PREPARATION FOR CLOSING......................................................32
7.1.    APPLICATION TO COMMISSION............................................32
7.2.    INSPECTION BY ENTERCOM...............................................33


                                       i
<PAGE>

7.3.    CONFIDENTIALITY......................................................33
7.4.    HART-SCOTT-RODINO NOTIFICATION.......................................34

                                  ARTICLE VIII

CLOSING......................................................................34
8.1.    CLOSING..............................................................34
8.2.    ADJUSTMENTS..........................................................34
8.3.    CLOSING DELIVERIES TO ENTERCOM.......................................37
8.4.    CLOSING DELIVERIES TO ARS............................................41
8.5.    COVENANTS OF FURTHER ASSURANCE.......................................43
8.6.    DAMAGE TO PROPERTY...................................................43
8.7.    TAXES ON TRANSACTION.................................................44

                                   ARTICLE IX

TERMINATION, DEFAULT AND INDEMNIFICATION.....................................44
9.1.    TERMINATION BY REASON OTHER THAN DEFAULT.............................44
9.2.    EFFECT OF TERMINATION BY REASON OTHER THAN DEFAULT...................45
9.3.    DEFAULT..............................................................45
9.4.    ARS' REMEDY..........................................................45
9.5.    ENTERCOM'S REMEDIES..................................................46
9.6.    LIQUIDATED DAMAGES NOT A PENALTY.....................................46
9.7.    INDEMNIFICATION......................................................46

                                    ARTICLE X

GENERAL PROVISIONS...........................................................50
10.1.   EXPENSES OF THE PARTIES..............................................50
10.2.   BROKERS..............................................................50
10.3.   SURVIVAL OF ARS' AND ARS LICENSE'S COVENANTS,
        REPRESENTATIONS AND WARRANTIES.......................................51
10.4.   AMENDMENT AND WAIVER.................................................51
10.5.   EFFECT OF THIS AGREEMENT.............................................51
10.6.   HEADINGS.............................................................51
10.7.   COUNTERPARTS.........................................................51
10.8.   GOVERNING LAW........................................................51
10.9.   NOTICES..............................................................52
10.10.  STATION EMPLOYEES....................................................53
10.11.  SECTION 1031 ASSET EXCHANGE..........................................53





                                       ii

<PAGE>
  


                            ASSET PURCHASE AGREEMENT


                  THIS  AGREEMENT  made and entered  into this 18th day of July,
1997 by and between AMERICAN RADIO SYSTEMS  CORPORATION,  a Delaware corporation
(hereinafter   "ARS"),   AMERICAN  RADIO  SYSTEMS   LICENSE  CORP.,  a  Delaware
corporation (hereinafter "ARS License"), and ENTERTAINMENT COMMUNICATIONS, INC.,
a Pennsylvania corporation (hereinafter "Entercom").

                              W I T N E S S E T H:

                  WHEREAS, pursuant to authorizations duly granted and issued by
the Federal  Communications  Commission (the "Commission"),  ARS is the owner of
radio station KCTC(AM) licensed to Sacramento,  California,  (the "Station") and
ARS operates  the Station  under a management  agreement  with ARS License,  the
holder of the Authorizations for the operation of the Station; and

                  WHEREAS, Entercom, ARS and ARS License have agreed, subject to
prior approval by the Commission and certain other  conditions,  to transfer and
assign the  licenses and all other  authorizations  relating to the Station from
ARS and ARS  License to Entercom  and for ARS and ARS  License to  transfer  and
Entercom to receive all of the assets, properties, rights and privileges used in
connection with the Station as hereinafter set forth; and

                  WHEREAS,  Entercom may elect to  accomplish  such  transfer in
whole or part as the acquisition of replacement property in a deferred like-kind
exchange under ss._1031 of the Code.






<PAGE>




                  NOW, THEREFORE, in consideration of the mutual promises herein
contained and of the  representations  and warranties  hereinafter set forth and
for other good and valuable consideration,  the parties, intending to be legally
bound hereby, agree as follows:

                                    ARTICLE I

                                   DEFINITIONS

                  As used herein,  the following  terms shall have the following
respective meanings:

                  "Adjustment  Time" shall mean 12:00:01 a.m. current local time
in Sacramento, California on the Closing Date.

                  "Agreement" shall mean this Asset Purchase Agreement.

                  "Applications" shall have the meaning set forth in Section 7.1
hereof.

                  "ARS"  shall mean the  corporation  identified  as such in the
Preamble to this Agreement.

                  "ARS License" shall mean the corporation identified as such in
the Preamble to this Agreement.

                  "Assets" shall mean the Property and all of the Authorizations
and all  applications  for  Authorizations  for the Station  pending  before the
Commission.

                  "Authorizations"  shall mean all of the licenses,  permits and
authorities  granted by the  Commission  with  respect to the  operation  of the
Station.

                  "Closing"   shall  mean  the  event  of  consummation  of  the
transactions  contemplated  by this Agreement as more fully described in Article
VIII of this Agreement.

                  "Closing  Date" shall mean the date  specified  for Closing in
Section 8.1 hereof.

                  "Code"  shall  mean the  Internal  Revenue  Code of  1986,  as
amended.


                                       2

<PAGE>





                  "Commission" shall mean the Federal Communications Commission.

                  "Contaminant"   shall   mean  and   include   any   pollutant,
contaminant,  hazardous material (as defined in any of the Environmental  Laws),
toxic  substances  (as defined in any of the  Environmental  Laws),  asbestos or
asbestos  containing  material,  urea formaldehyde,  polychlorinated  biphenyls,
regulated  substances  and  wastes,  radioactive  materials,  and  petroleum  or
petroleum by-products, including crude oil or any fraction thereof.

                  "Contracts"   shall   mean   all   agreements,   arrangements,
commitments and undertakings,  written or oral, express or implied,  relating to
the Assets or any of them, or to the present or future  operation of the Station
and to which  ARS  and/or  ARS  License  is a party or by which ARS  and/or  ARS
License or its  assignee is bound or  obligated  in any way  (including  without
limitation all  agreements  for the sale of advertising  time on the Station and
all trade or barter agreements) except for any Leases.

                  "Environmental  Laws"  shall  mean  and  include,  but  not be
limited  to,  any  applicable  federal,  state or local law,  statute,  charter,
ordinance, rule or regulation or any governmental agency interpretation,  policy
or guidance, including without limitation applicable safety/environmental health
laws such as but not  limited to the  Commission's  standards  relating to radio
frequency ("RF") radiation exposure,  the Resource Conservation and Recovery Act
of 1976,  Comprehensive  Environmental  Response Compensation and Liability Act,
Federal Emergency  Planning and Community  Right-to-Know Law, the Clean Air Act,
the Clean  Water Act,  the  Occupational  Safety and Health  Act,  and the Toxic
Substance  Control  Act,  as any of the  foregoing  have been  amended,  and any
permit, order, directive,  court ruling or order or consent decree applicable to
or affecting the Property or any other  property  (real or personal)  used by or



                                       3



<PAGE>



relating to the Station promulgated or issued pursuant to any Environmental Laws
which pertains to, governs, or controls the generation,  storage, remediation or
removal of Contaminants or otherwise  regulates the protection of health and the
environment  including,  but not  limited to, any of the  following  activities,
whether on site or off site: (a) the emission,  discharge,  release, spilling or
dumping of any Contaminant  into the air, surface water,  ground water,  soil or
substrata; or (b) the use, generation,  processing, sale, recycling,  treatment,
handling, storage, disposal, transportation, labeling or any other management of
any Contaminant.

                  "Entercom"  shall mean the  corporation  identified as such in
the Preamble to this Agreement and any Qualified  Intermediary to which Entercom
may elect to assign  all or part of its  rights  hereunder  pursuant  to Section
10.11 hereof.

                  "Final Order" shall mean an action by the Commission  upon any
application  including,  without  limitation,  the Applications for its consent,
approval or authorization, which action has not been reversed, stayed, enjoined,
set aside, annulled or suspended,  and with respect to which action, no protest,
petition to deny, petition for rehearing or  reconsideration,  appeal or request
for stay is  pending,  and as to which  action  the time for  filing of any such
protest,  petition, appeal or request and any period during which the Commission
may reconsider or review such action on its own authority has expired.

                  "Leases"   shall   mean  all   agreements,   arrangements   or
commitments and undertakings,  written or oral, express or implied,  for the use
or  occupation of any real or personal  property  required or used by ARS or ARS
License in the operation of the Station.

                  "Permitted  Encumbrances"  shall  mean (i) liens  for  current
taxes not yet due and payable, (ii) easements or restrictions of record which do
not,  either  individually  or in 


                                       4
<PAGE>

the  aggregate,  impede or  restrict  the present  operations  of the Station or
impair the marketability of any property, and (iii) statutory liens of landlords
and carriers,  materialmen,  mechanics,  warehousemen,  suppliers, and repairmen
arising in the  ordinary  course of business and with respect to amounts not yet
delinquent,  provided that such statutory liens do not interfere in any material
respect with the operation of the Station as currently  conducted,  and provided
that such statutory liens are removed or satisfied on or prior to the Closing.

                  "Property"  shall  mean  all of the  tangible  and  intangible
property,  whether real or personal or mixed, and all rights and interests which
are or were at any time since December 31, 1996 owned,  used, or held for use by
or for ARS with the Station or the present or future  operation  of the Station,
other than property  disposed of and replaced with equivalent or higher value or
quality  in  the  ordinary   course  of  business   excluding  only  cash,  cash
equivalents,  accounts  receivable  and those assets listed on Schedule 4.1.5 as
"Excluded Assets" and including  without  limitation (i) the assets and property
listed in" Schedule 4.1.5 hereto as "Included  Assets" (which schedule of assets
and property has been furnished to Entercom by ARS);  (ii) all of ARS and/or ARS
License's  rights,  titles,  and  interests  under the Leases listed on Schedule
4.1.6  hereto and the  Contracts  listed on Schedule  4.1.7  hereto  (other than
Contracts  expiring prior to Closing by their terms which Contracts Entercom has
instructed ARS not to renew); and (iii) the call letters, copyrights, trademarks
and other intellectual property associated with the Station.

                  "Qualified  Intermediary" shall mean a party described in U.S.
Treasury Regulations Section 1.1031(k)-1(g)(4).

                                       5
<PAGE>

                  "Station"  shall  mean the  amplitude  modulation  (AM)  radio
broadcast   station  licensed  by  the  Commission  to  Sacramento,   California
broadcasting on 1320 Khz with and currently assigned the call letters KCTC(AM).

                                   ARTICLE II

                                SALE AND PURCHASE

                  2.1.  TRANSFER OF ASSETS.  Subject to the terms and conditions
set forth in this Agreement,  at the Closing ARS and ARS License shall transfer,
convey,  grant,  assign and deliver to Entercom  free and clear of all liens and
encumbrances (other than Permitted  Encumbrances) and Entercom shall buy, accept
and receive from ARS, all of the Assets.

                  2.2.  PURCHASE PRICE. The Purchase Price for the Assets is the
sum of Four Million Dollars ($4,000,000).

                  2.3. PAYMENT.  The Purchase Price to be paid by Entercom shall
be  payable  in cash  delivered  at the  Closing  by wire  transfer  or in other
immediately  available funds to the account of ARS at such financial institution
as ARS shall specify in writing.

                  2.4. APPRAISAL.  Entercom,  ARS and ARS License agree that the
aggregate  fair market value of the Station Assets (the  "Aggregate  Fair Market
Value") will be appraised at Entercom's  expense by the appraisal firm of Bond &
Pecaro (the  "Appraisal").  Entercom shall prepare IRS Form 8594  reflecting the
Aggregate Fair Market Value as found by Bond & Pecaro and such other information
as required by the form,  and shall  forward it within 30 days after  Closing to
ARS and ARS  License  for its  approval,  which  approval  shall not be withheld
unreasonably.  Entercom,  ARS  and  ARS  License  shall  each  file  with  their
respective  federal  income  tax  return  for the tax year in which the  Closing
occurs,  IRS Form 8594  containing  the



                                       6
<PAGE>

information  agreed upon by the parties  pursuant to the  immediately  preceding
sentence.  Entercom  agrees to report the purchase of the Station Assets and ARS
and ARS License  agree to report the sale of such assets for income tax purposes
in a manner consistent with the information  agreed upon by the parties pursuant
to this section and  contained in its IRS Form 8594. In the event either or both
of the  parties  elects to treat all or a portion of the Assets  transferred  as
part of a deferred like-kind exchange under Section 1031 of the Code, each party
shall, in completing any IRS Forms 8824 that the party might be required to file
with the IRS,  reflect the values for the Assets as determined in the Appraisal.
Notwithstanding  any other provision of this  Agreement,  the provisions of this
Section 2.4 shall survive the Closing without limitation.

                                   ARTICLE III

                                   LIABILITIES

                  3.1. ASSUMPTION OF LIABILITIES.  As partial  consideration for
the Assets,  Entercom,  from and after the Closing  Date,  shall assume and pay,
perform and discharge the following  obligations  and commitments of ARS and ARS
License and no others:

                           3.1.1. The liabilities and obligations accruing after
the  Adjustment  Time with respect to the Leases listed on Schedule 4.1.6 hereto
that are specifically identified on Schedule 4.1.6 as being assumed by Entercom;

                           3.1.2. The liabilities and obligations accruing after
the  Adjustment  Time with respect to those  Contracts  listed on Schedule 4.1.7
that are specifically identified on Schedule 4.1.7 as being assumed by Entercom;
and any  contracts  entered  into  after the  execution  hereof  which  Entercom
expressly agrees to assume.



                                       7



<PAGE>



                           3.1.3.  All taxes and  assessments  that accrue on or
with respect to the Assets and the operation of the Station after the Adjustment
Time

                           3.1.4. Entercom shall discharge those obligations and
liabilities  for which it  receives  the  benefit  of a closing  proration  with
respect to such  liabilities  or  obligations  in  accordance  with  Section 8.2
hereof.

                  3.2.  LIABILITIES OF ARS.  Except as  specifically  assumed by
Entercom  pursuant to Section 3.1  hereof,  ARS and/or ARS License  shall pay or
discharge  any  and  all  taxes,  assessments,  accounts  payable,  commitments,
agreements, undertakings, claims, debts, demands, obligations and liabilities:

                           3.2.1. Incurred or made by ARS and/or ARS License; or

                           3.2.2.  Caused by,  arising out of or resulting  from
any act or omission of ARS and/or ARS License, their directors, officers, agents
or independent contractors; or

                           3.2.3.  Relating  to ARS  and/or  ARS  License or the
operation of the Station before the Adjustment Time.

                                   ARTICLE IV

                         REPRESENTATIONS AND WARRANTIES

                  4.1. ARS AND ARS LICENSE. ARS and ARS License hereby represent
and warrant to Entercom that:

                           4.1.1.  CORPORATE  STANDING.  ARS and ARS License are
corporations,  duly organized,  validly  existing and in good standing under the
laws of the State of Delaware  and are  qualified to do business in the State of
California.  ARS and ARS License have full power and  authority to engage in the
business  in which  they are  presently  engaged  and 


                                       8
<PAGE>

to make and perform this Agreement  according to its terms.  ARS and ARS License
have duly and properly  taken all necessary  corporate  actions and  proceedings
required to be taken by ARS and ARS License to authorize  ARS and ARS License to
execute,  deliver and perform this Agreement and to convey, assign, transfer and
deliver to Entercom the Assets hereunder.

                           4.1.2.  AUTHORIZATION.  The  execution,  delivery and
performance of this Agreement and all  transactions  contemplated  hereby by ARS
and ARS License have been duly  authorized  by ARS' and ARS  License's  Board of
Directors and  shareholders  and all necessary  corporate action on ARS' and ARS
License's part has been duly taken.

                           4.1.3.   QUALIFICATIONS  AS  ASSIGNOR.  ARS  and  ARS
License  know of no facts  which,  under  the  Communications  Act of  1934,  as
amended,  or  the  existing  rules  and  regulations  of the  Commission,  would
disqualify ARS or ARS License as an assignor of the Authorizations.

                           4.1.4. ABSENCE OF CONFLICTING ORDERS. Neither ARS nor
ARS  License  is  subject  to any  judgment,  award,  order,  writ,  injunction,
arbitration  decision or decree which  prohibits or prevents the  performance of
this Agreement or the  consummation of any transaction  contemplated  under this
Agreement,  and  there is no  litigation,  administrative  action,  arbitration,
proceeding or investigation pending, or to the knowledge of ARS and ARS License,
threatened,  against ARS or ARS License or  affecting  ARS or ARS License in any
federal,  state or local court or before any administrative agency or arbitrator
that would  adversely  affect  ARS' or ARS  License's  ability to perform  their
obligations  under  this  Agreement  or would  hinder  the  consummation  of the
transactions contemplated hereunder.

                                       9
<PAGE>

                           4.1.5.  PROPERTY.  The  Property to be  furnished  to
Entercom by ARS and ARS License, listed under the heading "Included Property" on
Schedule  4.1.5  hereto,  accurately  lists  and  includes  all of the  material
tangible  and  intangible   property   whether  real,   personal  or  mixed  and
substantially  all of the rights and interests  that are now or were at any time
since December 31, 1996 used, necessary, connected or associated with or related
to the  Assets or the  present or future  operation  of the  Station  except for
property  replaced in the ordinary  course of business with  property  listed on
Schedule  4.1.5 and except those assets  specifically  listed on Schedule  4.1.5
under the heading "Excluded Property."

                           4.1.6.  LEASES. ARS and ARS License have delivered to
Entercom true and correct  copies of all Leases listed on Schedule 4.1.6 hereto.
There are no other Leases for any items of real or personal  property related to
or associated with the Assets or the present or future  operation of the Station
other than those disclosed on Schedule 4.1.6 hereto.

                           4.1.7. CONTRACTS.  ARS and ARS License have delivered
to Entercom true and correct copies of all Contracts  individually identified on
Schedule  4.1.7 hereto.  There are no Contracts now in effect,  written or oral,
express  or  implied,  which in any way  affect  the  Property  or Assets or the
present or future  operation of the Station  other than as set forth on Schedule
4.1.7 hereto.

                           4.1.8.   APPLICATIONS.   There  are  no  applications
relating to the Station presently pending before the Commission other than those
listed on Schedule 4.1.11 attached hereto.

                           4.1.9.  TITLE TO  PROPERTY.  Except as  disclosed  on
Schedule 4.1.9 hereto, at Closing ARS and ARS License will have good, marketable
and indefeasible 



                                       10
<PAGE>

ownership,  right,  title and  interest to the Property  including  the right to
transfer  same  free and  clear of any  mortgage,  conditional  sale  agreement,
security interest, lease, lien, hypothecation, pledge, encumbrance, restriction,
liability,  charge, claim or imperfection of title applicable to the Property or
any of the  income or revenue  therefrom  whatsoever  except  for the  Permitted
Encumbrances.

                           4.1.10.  NO  DEFAULTS.   ARS  and  ARS  License  have
complied with all of the terms of the Contracts  listed on Schedule 4.1.7 hereto
and the Leases listed on Schedule  4.1.6 hereto and such Contracts and Leases at
Closing shall be  enforceable  by ARS and ARS License in  accordance  with their
respective  terms,  except as such  enforcement  may be  limited  by  applicable
bankruptcy and similar laws affecting the  enforcement of creditors'  rights and
general  equitable  principles  affecting the enforcement of equitable  remedies
(including  within said  equitable  remedies  without  limitation  the remedy of
specific performance).  Neither ARS nor ARS License is in default thereunder and
no event has occurred  which with the passage of time or the giving of notice or
both would  constitute a default by ARS  thereunder.  To ARS' and ARS  License's
knowledge  all other  parties to the Contracts and Leases have complied with the
provisions  thereof and are not in default  thereunder and no event has occurred
which with the passage of time or the giving of notice or both would  constitute
a default by any such other party thereunder.

                           4.1.11. AUTHORIZATIONS.  All authorizations necessary
to the lawful operations of the Station as presently conducted have been granted
and  issued by the  Commission  to ARS  and/or  ARS  License  and are  listed on
Schedule 4.1.11 attached hereto and are now in full force and effect.  There are
no applications  of ARS or ARS License  relating to 



                                       11
<PAGE>

the Station  pending with the the  Commission  except as listed on such Schedule
4.1.11 and ARS and ARS License have performed and complied with all of the terms
and conditions of said  Authorizations.  Except as listed on Schedule 4.1.11 and
4.1.14 no Proceedings are pending,  or to the knowledge of any officer of ARS or
ARS License are threatened,  which may result in the  revocation,  modification,
non-renewal or suspension of any of any of the Authorizations, the denial of any
pending  applications,  the  issuance  of a  cease  and  desist  order,  or  the
imposition of any other administrative or judicial sanction to which the Station
or the Assets is or may be subject. All ownership reports, renewal applications,
and other  material  reports  and  documents  required to be filed by ARS or ARS
License with the Commission have been filed, and all such reports,  applications
and  documents  are true and correct.  The Station is  identified by its present
call  letters and unless  otherwise  validly  authorized  by the  Commission  is
operated at maximum  authorized power on its assigned frequency at the power and
height authorized by the Commission.

                           4.1.12.  PERMITS  AND  LICENSES.  In  addition to the
Authorizations  at Closing,  ARS or ARS License shall have obtained and/or holds
all other  governmental  permits and licenses necessary for the lawful operation
of the Station as it is currently  operated.  All such governmental  permits and
licenses are also listed on Schedule 4.1.11 hereto. All terms,  restrictions and
requirements  of such permits and licenses  have been  complied with and neither
ARS nor ARS License is in default of any of same.

                           4.1.13.  COMPLIANCE  WITH LAWS.  ARS and ARS  License
have  complied  in all  material  respects  with all orders (to which ARS or ARS
License  respectively is a party or is subject to),  applicable laws, rules, and
regulations  of all  federal,  state and local  







                                       12
<PAGE>

authorities with respect to the Assets and operation of the Station. Neither ARS
nor ARS License is, nor to ARS' or ARS License's knowledge,  has any third party
asserted  that they are in default  with  respect to or in  violation of (a) any
judgment,  order,  injunction or decree; or (b) rule or regulation of any court,
administrative  agency or other  governmental  authority,  in either case in any
respect material to this transaction.  All material  reports,  returns and other
documents  filed  by ARS and ARS  License  with  any  administrative  agency  or
governmental authority are true, correct and complete in all material respects.

                           4.1.14. LITIGATION AND CLAIMS. Except as disclosed in
Schedule  4.1.14 hereto,  no litigation,  proceeding,  or controversy is pending
against ARS or ARS' License, or to the knowledge of ARS or ARS License,  against
any other party, or to the knowledge of ARS or ARS License,  threatened  against
ARS, ARS License or any other party, which might affect any of the Assets,  ARS'
or ARS License's right or power to transfer the same, the ownership, possession,
use or resale of any of the  Assets,  or the  operation  of the  Station  by the
Entercom  or by any  assignee  of  Entercom.  No claim has been made or asserted
against ARS or ARS License material to this  transaction;  and there is no basis
known to ARS or ARS License for any such litigation,  proceeding, controversy or
claim.

                           4.1.15. LABOR RELATIONS.  In all respects material to
this  transaction,  ARS and ARS License have complied with all applicable  laws,
rules and  regulations  pertaining to the employment of labor,  including  those
relating  to  wages,  hours,   collective  bargaining  and  the  payment  of  or
withholding of taxes, and ARS and ARS License have withheld all amounts required
by law or agreement to be withheld  from the wages or salaries of its  employees
and are not liable for any  arrears  of wages or any tax or  withholding  or any


                                       13
<PAGE>

penalties or interest for failure to comply with any of the foregoing; and there
are no collective bargaining agreements relating to the relationship between any
employee of the  Station.  Neither ARS nor ARS License has any  knowledge of any
union organizing activities involving or targeting any employees of the Station.

                           4.1.16. EMPLOYMENT CONTRACTS.  Except as disclosed on
Schedule  4.1.16  there  are no  written  contracts  for the  employment  of any
personnel  relating to the Station and all employees of the Station are employed
on an "at will" basis which may be terminated without cause at any time and with
not more than two weeks' notice.

                           4.1.17. INSURANCE. ARS currently maintains and has in
the past maintained  insurance  coverage on the Property and with respect to its
employees  and  operations  in amounts and in respect of  liabilities  and risks
prudently insured against by radio broadcasters. Schedule 4.1.17 attached hereto
contains  a true and  complete  listing  of all such  policies  and  binders  of
insurance  currently  held by or on behalf of ARS,  relating to the Property and
the Station's employees and operations.  Such policies and binders are valid and
enforceable by ARS, in accordance with their  respective  terms,  except as such
enforcement  may be limited by applicable  bankruptcy and similar laws affecting
the enforcement of creditor's rights and general equitable  principles affecting
the enforcement of equitable remedies  (including within said equitable remedies
without  limitation the remedy of specific  performance) and are outstanding and
duly in force as of the date hereof and provide adequate property  insurance for
the  replacement  of the tangible  assets of the Station and adequate  liability
insurance for the protection of the business and operations of the Station.

                           4.1.18.  EMPLOYEE  BENEFIT AND RETIREMENT  PLANS. ARS
and ARS License do not now  maintain  and have never  maintained  any  "employee
pension  benefit  plan" or any  "employee  welfare  benefit  plan"  (as  defined
respectively  in  Sections_3(2)  and 3(l) of ERISA)  on behalf of the  Station's
employees except as listed on  Schedule_4.1.18  hereto and all retirement plans,
bonus  arrangements,  life insurance or medical insurance  programs or any other
fringe benefit arrangements (collectively "Fringe Benefit Arrangements") for any
employees of the Station  whether  written or unwritten  except as are listed on
Schedule 4.1.18 hereto.  All "employee pension benefit plans," "employee welfare
benefit plans" and Fringe Benefit  Arrangements listed on Schedule 4.1.18 hereto
comply in all respects with all applicable  requirements  of law and regulation.
ARS and ARS License do not  maintain an employee  pension  benefit plan which is
subject  to Title IV of ERISA  and has never  sponsored  or  contributed  to any
"multi-employer pension plan" (as defined in Section 3(37) of ERISA). 

                           4.1.19.  EMPLOYEES.  Schedule  4.1.19 attached hereto
contains a listing of the name, address, salary or compensation,  accrued and/or
earned vacation,  sick leave and/or other benefits, job description and original
employment date of all current  employees of the Station along with, to the best
of ARS' and ARS License's  knowledge,  the dates and information  concerning any
previous  salary or  compensation  change or adjustment  and the reasons for any
such change or  adjustment  for each such current  employee.  Entercom  may, but
shall not be obligated  (other than through its own actions  independent  of any
provisions of this Agreement) to offer employment to any employee of Station who
was employed by ARS at or before the Closing.  With respect to any  employees of
ARS that Entercom  employs at Closing,  ARS shall be responsible  for and pay to
such employees all accrued or earned compensation and benefits of



                                       15
<PAGE>

any kind as of the Adjustment Time,  including without  limitation  severance or
other  termination  benefits if any,  provided that ARS shall not be responsible
for such items to the extent that  Entercom  agrees to be  responsible  for such
items and receives a credit therefore  pursuant to the provisions of Section 8.2
hereof.

                           4.1.20.  BULK TRANSFER LAWS.  Neither this Agreement,
the Closing,  nor any other  transactions  contemplated  by this  Agreement  are
subject to any Bulk Transfer Law or similar law in any  jurisdiction  applicable
to the transactions contemplated by this Agreement.

                           4.1.21.  BROADCASTING CONTRACTS.  Except as disclosed
on Schedule  4.1.21,  all  Contracts for the sale of broadcast  advertising  are
terminable  without  penalty by Station on not more than  thirty (30) days prior
written  notice and all  Contracts  for the sale of broadcast  advertising  on a
trade or barter basis are subject to preemption in favor of cash advertising and
all trade or barter  advertising  under such Contracts are to be broadcast prior
to the time of  Closing.  Schedule  4.1.21  also  lists  the  trade  and  barter
contracts for the Station as of the date of this Agreement,  showing the current
amount  of  trade  and  barter  advertising   obligations  of  the  Station  now
outstanding and all trade and barter receivables owed to the Station.  The total
amount  of  all  trade  and  barter  advertising   obligations  of  the  Station
outstanding at Closing will not exceed $20,000 and the total of the value of the
advertising  obligations of the Station  outstanding less the value of the trade
and barter  receivables  owed to the  Station as of the  Closing  Date shall not
exceed Ten Thousand Dollars ($10,000).

                           4.1.22.    PROPERTY,   PLANT   AND   EQUIPMENT.   All
structures,  facilities machinery,  equipment, furniture, fixtures, automobiles,
trucks,  tools and other tangible




                                       16
<PAGE>

personal property  included within the Property are in good operating  condition
and reasonable  repair and are usable in the ordinary course of the operation of
the Station,  ordinary wear and tear excepted.  Such tangible  personal property
includes all  equipment  and devices  reasonably  necessary  for proper and safe
operation of the Station,  ordinary wear and tear  excepted in  accordance  with
generally  accepted  engineering  and  operating  practices  of a prudent  radio
broadcast operator.

                           4.1.23.  ENVIRONMENTAL  COMPLIANCE,   POLYCHLORINATED
BIPHYENYLS,  ASBESTOS  AND  OTHER  TOXIC OR  HAZARDOUS  SUBSTANCES.  None of the
Property  used by the  Station in its  operations  or for which the owner of the
Property could be held responsible  under any Environmental  Laws contains:  (i)
any asbestos,  polychlorinated  biphenals  ("PCBs") or any PCB contaminated oil;
(ii) any  Contaminants;  or  (iii) any  underground  storage  tanks.  All of the
Property  and such real  property  are in full  compliance  with all  applicable
Environmental  Laws and neither ARS nor ARS License has knowledge of any notice,
assertion or claim to the contrary.

                           4.1.24.  FINANCIAL  AND OTHER  INFORMATION.  Schedule
4.1.24 attached  hereto  contains a list of all of the financial,  technical and
operating  information provided to Entercom by ARS or ARS License concerning the
operation of the Station.  All such  information and any additional  information
provided to Entercom by ARS or ARS License  pursuant to this  Agreement  is true
and correct and not misleading,  does not fail to state any material information
necessary to make the statements made therein not misleading,  and the financial
statements  and  material to be  provided to Entercom by ARS fairly  present the
financial  condition of the Station as of the  respective  dates thereof and the
results of operation of the 



                                       17
<PAGE>

Station for the respective  periods then ended;  and were prepared in accordance
with generally accepted accounting principles consistently applied.

                           4.1.25. REAL PROPERTY.



                                    (a) The real property identified on Schedule
4.1.25 has vehicular  access to a road and is supplied with  utilities and other
services  necessary for the  operation of that portion of the Station  conducted
there.  No real property other than that listed on Schedule  4.1.25 or listed on
Schedule  4.1.5  pertaining  to Excluded  Property,  is used in, held for use in
connection  with or necessary  for the conduct of, the business or operations of
the Station. The transmitting towers,  related improvements,  guy anchors of the
transmitting towers, and the transmitter  buildings used by ARS in the operation
of the Station are located  entirely on such real property.  The improvements of
ARS and ARS License upon such real property and the current use and operation on
such  premises by ARS and ARS License  conform in all  material  respects to all
restrictive covenants, conditions,  easements, building, subdivision and similar
codes  and  federal,  state and  local  laws,  regulations,  rules,  orders  and
ordinances  and ARS has not  received  any  notice of any  violation  or claimed
violation  of any such  restrictive  covenant,  condition  or  easement,  or any
building,  subdivision  or similar  code,  or any  federal,  state or local law,
regulation,  rule,  order or  ordinance  which,  either  individually  or in the
aggregate,  could have a material  adverse  effect on the  assets,  business  or
financial  






                                       18
<PAGE>

condition of the Station.  There is no plan, study or effort by any governmental
authority  or agency  which  could  reasonably  be  expected  to have a material
adverse  effect on the assets,  business or financial  condition of the Station.
There are no latent  defects in the real  property  which  could  reasonably  be
expected to have a material adverse effect on the assets,  business or financial
condition of the Station.  All improvements upon the real property identified on
Schedule 4.1.25 are in good operating condition and repair, normal wear and tear
excluded.  Neither  ARS nor ARS  License  has  knowledge  or notice  (i) of  any
pending,  threatened,  or  contemplated  action  to take by  eminent  domain  or
otherwise  to condemn  any portion of the real  property or interest  therein or
(ii) of any levied,  threatened or proposed  assessments for public improvements
with respect to the real property.

                                    (b) The  ground  system  for the  Station is
complete and contains the requisite number of ground radials.  The ground system
for the Station is accessible and fully  contained  within real property that is
owned by ARS. The Station  operates within  licensed  parameters in both daytime
and nighttime transmission, and its proof of performance is current and complete
and indicates such compliance.

                                    4.1.26.   CLOSING.   All  of  the  foregoing
representations and warranties of ARS and ARS License shall be true and accurate
as of the Closing Date and said  representations  and warranties shall be deemed
to have been  restated  in full by ARS and ARS  License as of the  Closing  Date
except to the extent they speak as of a  particular  time other than the Closing
Date,  or  except  for  changes  contemplated  by  the  terms  hereof.  




                                       19
<PAGE>

                  4.2.  ENTERCOM   REPRESENTATIONS.   Entercom   represents  and
warrants to ARS and ARS License that:

                           4.2.1. CORPORATE STANDING.  Entercom is a corporation
duly  organized,  validly  existing and in good  standing  under the laws of the
Commonwealth  of  Pennsylvania,  and at the Closing Date will have the corporate
power and authority to conduct its business as proposed to be conducted and upon
the acquisition of the Assets will be duly qualified to do business in the State
of California.

                           4.2.2.   AUTHORIZATION   OF  AGREEMENT:   NO  BREACH.
Entercom has the corporate  power and authority to execute,  deliver and perform
this  Agreement and such other  agreements  as are  necessary to consummate  the
transactions  contemplated  hereby and this Agreement  constitutes the valid and
binding  obligation  of  Entercom  subject to the  receipt of the  consents  and
approvals  required  elsewhere herein.  Assuming the said consents and approvals
are obtained, neither such execution, delivery and performance nor compliance by
Entercom with the terms and provisions  hereof will conflict with or result in a
breach of any of the terms,  conditions  or  provisions  of the  Certificate  of
Incorporation or Bylaws of Entercom or any judgment, order, injunction,  decree,
regulation or ruling of any court or any other  governmental  authority to which
Entercom is subject or any material agreement or contract to which Entercom is a
party or to which it is subject, or constitute a material default thereunder.

                           4.2.3.  QUALIFICATION AS ASSIGNEE.  Entercom knows of
no facts  which,  under  the  Communications  Act of 1934,  as  amended,  or the
existing rules and regulations of the Commission,  would disqualify  Entercom as
an assignee of the Authorizations.




                                       20
<PAGE>

                           4.2.4. ABSENCE OF CONFLICTING  AGREEMENT AND REQUIRED
CONSENTS.  Entercom  is  not  subject  to  any  judgment,  award,  order,  writ,
injunction,  arbitration  decision or decree which  prohibits the performance of
this Agreement or the  consummation of any transaction  contemplated  under this
Agreement,  and  there is no  litigation,  administrative  action,  arbitration,
proceeding  or  investigating   pending,   or  to  the  knowledge  of  Entercom,
threatened,  against  Entercom or affecting  Entercom in any  federal,  state or
local  court,  or before  any  administrative  agency or  arbitrator  that would
adversely  affect  Entercom's  ability to  perform  its  obligations  under this
Agreement  or would hinder the  consummation  of the  transactions  contemplated
hereunder.

                           4.2.5.  All  of  the  foregoing  representations  and
warranties  of Entercom  shall be true and  accurate as of the Closing  date and
said  representations  and  warranties  shall be deemed to have been restated in
full by Entercom as of the Closing  Date except to the extent they speak as of a
particular time other than the Closing Date.

                                    ARTICLE V

                                   CONDITIONS

                  5.1.  COMMISSION  CONSENT  AND  APPROVAL  AND HSR ACT  WAITING
PERIOD.  Performance of the  obligations of the parties under this Agreement and
the Closing of the  transaction  provided for herein are and shall be subject to
the  occurrence  and  concurrence  of the express  condition  precedent that the
Commission  has granted its consent and approval in writing to the assignment to
Entercom of the Authorizations issued by the Commission for the Station as
contemplated  hereby, such consent to be free of any material adverse condition,
and the waiting  periods (as it may be extended)  applicable  to the transfer of

                                       21

<PAGE>

the Assets under the  Hart-Scott-Rodino  Antitrust  Improvements Act of 1976, as
amended (the "HSR Act") shall have expired or been earlier terminated.

                  5.2. ENTERCOM'S CONDITIONS.  Performance of the obligations of
Entercom under this Agreement and the Closing of the  transactions  provided for
herein are and shall be  subject to the  occurrence  of the  express  conditions
precedent, any of which may be waived by Entercom that:

                           5.2.1. The Commission's consent and approval required
by  Section  5.1 hereof  and the  consent  and  required  approval  of any other
governmental  authority has been issued or received without any material adverse
condition and the Commission's consent shall have become a Final Order; and

                           5.2.2. The application of ARS License for the renewal
of the  Authorizations  of the  Station  shall  have been  granted  without  any
material adverse condition and such grant shall have become a Final Order by the
date that is 120 days after the closing of that certain Asset Exchange Agreement
by and between the parties dated July 18, 1997.

                           5.2.3.  Between  the date of this  Agreement  and the
date of Closing,  except for periods not to exceed twenty-four (24) hours in any
one continuous  period or forty-eight  (48) hours in the aggregate,  the Station
shall have broadcast continuously from its main antenna.

                           5.2.4.  At or prior to  Closing,  Entercom  shall not
have received any information that the Property and/or any real property used by
the Station in its operations  and for which Entercom could be held  responsible
under any  Environmental  Law may contain any asbestos,  PCB's, PCB contaminated
oil, underground storage tanks, or any Contaminant,  or that 



                                       22
<PAGE>

any of the  property  or any such  real  property  are not or may not be in full
compliance with all Environmental Laws.

                           5.2.5.  ARS' and ARS  License's  representations  and
warranties  contained  in Section  4.1 hereof  shall be true and  correct in all
material  respects  at and as of the  Closing  Date as if made on and as of such
date except to the extent that they speak as of a particular time other then the
Closing Date.

                           5.2.6. All of the terms,  covenants and conditions to
be complied with and performed by ARS on or prior to the Closing Date shall have
been complied with or performed in all material respects.

                           5.2.7.  Closing  shall  have been  consummated  on or
before June_30,  1998 provided that the failure to consummate  Closing shall not
be due to a default by Entercom in its obligations hereunder.

                           5.2.8.  Closing  under the Asset  Exchange  Agreement
between the parties dated as of July 18, 1997, shall have occurred.

                  5.3  ARS  AND  ARS  LICENSE  CONDITIONS.  Performance  of  the
obligations  of the ARS and ARS License under this  Agreement and the Closing of
the transactions  provided for herein are and shall be subject to the occurrence
of the express conditions precedent,  each of which may be waived by the ARS and
ARS License that:

                           5.3.1.  Entercom's   representations  and  warranties
contained  in Section  4.2  hereof  shall be true and  correct  in all  material
respects at and as of the Closing  Date as if made on and as of such date except
to the extent they speak as of a particular time other than the 



                                       23
<PAGE>

Closing Date and only if the failure of any such  representation  or warranty to
be true and correct at Closing prevents  Entercom from  consummating the Closing
hereunder.

                           5.3.2. All of the terms,  covenants and conditions to
be complied with and performed by Entercom on or prior to the Closing Date shall
have been complied with or performed in all material respects.

                  5.4.  NONOCCURRENCE  OF  CONDITIONS.   This Agreement  may  be
terminated in accordance with Article IX hereof as follows:

                           5.4.1.  By either party if consent to the  assignment
of the  Authorizations  issued by the  Commission  for said Station is denied by
Final Order;

                           5.4.2. By Entercom if Entercom is not then in default
hereunder and the conditions  set forth in  Section_5.2 of this Agreement  shall
not either have been met or waived by Entercom; and

                           5.4.3. By ARS or ARS License if ARS or ARS License is
not then in default  hereunder  and the  conditions  set forth in Section 5.3 of
this Agreement shall not either have been met or waived by ARS or ARS License.


                                   ARTICLE VI

                           OPERATIONS PENDING CLOSING.

                  6.1. AFFIRMATIVE COVENANTS OF ARS AND ARS LICENSE.  During the
period from the date of this  Agreement to the Closing Date, ARS and ARS License
shall:

                  6.1.1.  Conduct the business and  operations of the Station in
accordance with sound and prudent  operating  practices and all  requirements of
law and regulation and, to 




                                       24
<PAGE>

the extent  consistent with the foregoing,  in the same manner in which the same
have  heretofore  been  conducted  with the  intent of  preserving  the  ongoing
operations  and business of the Station.  In  connection  therewith  ARS and ARS
License  shall  use  their  reasonable   efforts  to  preserve  the  operations,
organization  and reputation of the Station  consistent  with past practice,  to
preserve the good will and business of the Station's advertisers,  suppliers and
others having business relations with the Station with no less effort than as in
the prior conduct of the business of the Station.

                  6.1.2.  Cooperate with Entercom in connection  with Entercom's
review,  analysis and monitoring of the Assets and the operations of the Station
to the end that an  efficient  transfer of the Assets may be made at Closing and
the business of Station may continue on an  uninterrupted  basis. In addition to
providing  information  required hereunder or reasonably  requested by Entercom,
ARS and ARS License agree to promptly notify Entercom of any unusual problems or
developments  of which ARS or ARS  License  becomes  aware  with  respect to the
Assets,  or  the  business  of the  Station  and  of  any  change  in any of the
information  contained in the  representation  and warranties  made in Article 4
including  without  limitation,   immediate  notification  to  Entercom  of  any
information ARS or ARS License receives concerning offers of employment by third
parties to any of the Station's employees and of any litigation,  arbitration or
administrative  proceeding  pending,  or to the knowledge of ARS or ARS License,
threatened which challenges the transactions contemplated hereby.

                  6.1.3.  Consult with Entercom  regarding any proposed material
changes to the operation of the Station to insure the continued operation of the
Station as it is now operated  and  cooperate  with  Entercom to insure a smooth
transfer of ownership and  continuity  



                                       25
<PAGE>

of  operations  at Closing.  The  foregoing  shall not be  construed  to require
Entercom  to consult  with ARS or ARS  License or to render any advice to ARS or
ARS License.

                  6.1.4. Entercom may obtain a Phase I Environmental  Assessment
of all of the  property  and any  real  property  used by the  Station  in their
operations  and  for  which  Entercom  could  be  held  responsible   under  any
Environmental  Laws.  In the event such  Assessment  discloses any potential for
conditions contrary to the  representations and warranties  contained in Section
4.1.23,  ARS  and/or  ARS  License  will  take  whatever   additional   measures
recommended  in such  Assessment  and will take whatever  steps are necessary to
insure that such  representations  and warranties are true and correct as of the
date of Closing.

                  6.1.5. Cooperate with Entercom in Entercom's efforts to employ
at Closing  any of the  current  employees  relating  to the  Station  listed on
Schedule  4.1.19  that  Entercom  chooses,  including  without  limitation:  (i)
allowing  Entercom to meet  privately  with any such  current  employees  of the
Station;  (ii) not  interfering  with or  attempting  to  undermine  in any way,
Entercom's  efforts  to employ  such  employees  at the  Closing;  and (iii) not
discussing  or  offering  continued  employment  with any such  employees  until
Entercom has affirmatively  notified ARS that Entercom will not offer employment
to that employee at Closing.

                  6.1.6. ARS and/or ARS License shall make capital  expenditures
reasonably required to maintain and repair the Station equipment and to continue
the operations of the Station consistent with past practice.

                  6.1.7. ARS shall,  within thirty (30) days after the execution
of this Agreement at its expense,  (i)  commission a qualified  title company to
prepare and provide to Entercom a  preliminary  title report with respect to the
real property within the Station  Property 



                                       26
<PAGE>

other  than  the  real  property  subject  to the  Communications  Site  License
Agreement (the "KCTC Preliminary Title Report"),  and ARS shall promptly provide
a copy of the KCTC Title Report to Entercom,  together with  complete  copies of
all  documents  relating  to  the  title  exceptions  referred  to in  the  KCTC
Preliminary  Title Report,  (ii) commission a qualified  surveyor to prepare and
provide to  Entercom a Category  1-A  Condition  IV Survey of the real  property
within  the  Station  Property  other  than the  real  property  subject  to the
Communications Site License Agreement (the "KCTC Survey") depicting the location
of all title  exceptions.  Entercom  shall have the right to  disapprove  of any
title exceptions other than Permitted  Encumbrances (whether or not disclosed in
the KCTC Preliminary  Title Report) which in Entercom's  reasonable  discretion,
have an adverse impact on the Property or Entercom's  use thereof,  and Entercom
shall notify ARS of any such  disapproval  within thirty (30) days after receipt
of the KCTC  Preliminary  Title  Report and KCTC Survey by  Entercom.  All title
exceptions set forth in the KCTC  Preliminary  Title Report and any supplemental
reports or updates to the KCTC  Preliminary  Title Report and not disapproved by
Entercom  within the time periods  provided  herein shall  constitute  Permitted
Encumbrances.  Prior to the Closing, ARS shall, at its expense,  remove or cause
to be removed, all disapproved exceptions (the "Disapproved Matters") or, in the
alternative, obtain title insurance in a form satisfactory to Entercom, insuring
against the effect of such Disapproved Matters.

                  6.1.8.  ARS and ARS  License  shall use their best  efforts to
prosecute with the Commission the application for renewal of the Authorizations,
such that the application is granted without any material adverse condition and,
to the extent  reasonably  possible,  on or prior to the date for  expiration of
such Authorizations.

                                       27
<PAGE>

                  6.1.9.  Within  a  period  of  ten  (10)  days  following  the
execution of this Agreement, ARS and ARS License shall use their best efforts to
finalize  all  schedules  referred  to in  Section_4.1  and shall use their best
efforts thereafter to promptly  supplement or amend the final schedules referred
to herein with respect to any matter  arising  after the date of this  Agreement
that would have been  required to make such  schedules  complete  and  accurate.
Prior to the acceptance of final  schedules or any  modification of any schedule
referred to in Section_4.1 by ARS or ARS License pursuant to this Section_6.1.9,
Entercom and ECI shall have the right to approve such schedule or  modification,
such  approval  not to be  unreasonably  withheld,  conditioned  or delayed.  If
Entercom  disapproves of any final schedule or modification  thereafter pursuant
to this  Section_6.1.9,  any such schedule or proposed  modification will not be
accepted or permitted, as the case may be, except as thereafter agreed to by the
parties.  If the parties fail to agree in the exercise of reasonable  good faith
judgment  on any such final  schedule  or proposed  modification  thereto,  this
Agreement shall  terminate and no party shall have any further  liability to any
other party hereunder in the case of disagreement over final schedule or, in the
case of a schedule  modification,  Entercom  may  proceed  to  Closing  and seek
indemnification pursuant to Section_9.7 hereof.

                  6.1.10.  ARS  shall  consult  with  Entercom   concerning  any
impending expiration of any Lease or Contract and renew such Leases or Contracts
to the extent requested by Entercom,  with such modified terms (if any) as shall
be approved by Entercom.

                  6.2.  NEGATIVE  COVENANTS  OF ARS  AND  ARS  LICENSE.  Unless
Entercom  has  given  its  consent  in  writing,  which  consent  shall  not  be
unreasonably  withheld or delayed,  ARS and ARS License  shall not,  directly or
indirectly, during the period from the date hereof to the Closing Date:

                           6.2.1.  Cancel,  amend,  modify  adversely,   assign,
encumber or in any way discharge or terminate the Leases.

                           6.2.2.  By any  act  or  omission  surrender,  modify
adversely,  forfeit or fail to renew on regular terms any Authorizations for the
Station  or take  or omit  any  action  which  might  result  in the  Commission
instituting any  proceedings  for the revocation,  suspension or modification of
any of the Authorizations.

                           6.2.3.  Except in the usual  and  ordinary  course of
business,  sell or dispose  of any of the  Assets;  provided  that any Assets so
disposed of in the ordinary  course of business are replaced with Assets of like
kind, quality and quantity;

                           6.2.4. Suffer or permit the creation of any mortgage,
conditional  sale agreement,  security  interest,  lease,  lien,  hypothecation,
pledge, encumbrance,  restriction,  liability,  charge, claim or imperfection of
title on or with respect to any of the Assets other than Permitted Encumbrances.

                           6.2.5.  Fail  to  repair,  replace  or  maintain  the
Station's  transmitting  equipment,  studio and other  technical  equipment  and
furniture,  fixtures and office equipment in good order and condition reasonable
wear and tear excepted and in accordance with the generally  accepted  standards
of maintenance  applicable to the  broadcasting  industry or fail to maintain at
levels consistent with past practice its equipment,  supplies and other tangible
property used or usable in the operation of the Station;

                                       29
<PAGE>


                           6.2.6.  Enter  into  any  agreement  for the  sale of
broadcast  time on the Station  which  cannot be  terminated  upon not more than
thirty (30) days' written notice.

                           6.2.7.  Enter  into or extend or renew any  agreement
for the sale of  broadcast  time on the Station on a trade or barter basis which
would cause the total  obligation for trade  broadcast time or the  differential
between trade  broadcast time due and trade  receivables to exceed the limits in
Section 4.1.21.

                           6.2.8.  Increase or decrease  the number of full time
employees  currently  employed solely by the Station or increase or decrease the
total current  weekly  employee  payroll  expense from that existing in the last
payroll  period in June,  1997 for the Station by more than ten percent (10%) or
materially change any sales commission formula.

                           6.2.9.  Hire  any new or  replacement  management  or
supervisory  employees,   or  talent  for  major  dayparts,   including  without
limitation general manager, sales manager,  program director,  announcer for any
period 6 a.m. to midnight Monday through Friday,  business manager, or promotion
director.

                           6.2.10.  Modify the current  forma and/or the program
selection  practices  of the  Station or  materially  modify  the  music/program
rotation policy of the Station.

                           6.2.11.  Reduce  by more than ten  percent  (10%) the
amount or modify the type of research and external promotion advertising for the
Station from that which has been  budgeted by ARS as reflected in the  documents
listed on Schedule 4.1.24 hereto.

                           6.2.12.  Reduce or  increase by more than ten percent
(10%) the amount of on-air promotion,  contests or the dollar value of prizes on
the  Station  from  that  which has been  budgeted  by ARS as  reflected  in the
documents listed on Schedule 4.1.24 hereto.






                                       30
<PAGE>

                           6.2.13.  Allow or cause to exist any event of default
material to this transaction  under any agreement to which ARS or ARS License is
a party.

                           6.2.14. Fail to take any reasonable actions necessary
to maintain the Station's continuous broadcast operations from its main antenna.

                           6.2.15. Fail to take any reasonable actions necessary
to  avoid  the  happening  of or to  cure  the  existence  of any  damage  to or
impairment of any of the Assets.

                           6.2.16. Enter into any new material contracts,  other
than Contract for the sale of broadcast  time,  that will not be fully performed
prior to the date of Closing.

                           6.2.17.  Renew, extend, modify or cancel, or allow or
suffer the automatic renewal,  extension or cancellation of any of the Contracts
or  Leases,  except  for  renewal of such  Contracts  or Leases as is  otherwise
provided herein.

                           6.2.18.  Fail to operate  the  Station in  conformity
with all of the applicable requirements of law and regulation.

                           6.2.19.  Deviate from the Station's current broadcast
scheduling  practices  of  broadcasting  not more than  twelve  (12)  commercial
announcements nor more than ten (10) minutes of commercial  announcements in any
one hour period.

                           6.2.20.  Deviate in any  material way with respect to
the methodology ARS, ARS License and its  predecessors  have utilized during the
one year period prior to the date of this  Agreement for selling  commercial air
time on the Station and for setting  rates with respect to such  commercial  air
time.

                  6.3.  NO  CONTROL  BY  ENTERCOM.  Nothing  contained  in  this
Agreement  shall give to  Entercom  any right to control the  operations  of the
Station prior to the 

                                       31
<PAGE>

Closing  Date.  Any  advice,  counsel or consent  given to ARS or ARS License by
Entercom  under this  Article VI will not  mitigate,  detract  from or otherwise
affect ARS' or ARS License's  representations,  warranties or obligations  under
this Agreement and the consequences of ARS and/or ARS License acting on any such
advice, counsel or consent will be solely ARS' and ARS License's responsibility.
Any advice, counsel or consent given to Entercom by ARS and/or ARS License under
this Article VI will not mitigate,  detract from or otherwise affect  Entercom's
representations, warranties or obligations under this Agreement.

                                   ARTICLE VII

                             PREPARATION FOR CLOSING

                  7.1.  APPLICATION  TO  COMMISSION.  The  parties  hereby  bind
themselves to use all reasonable  efforts,  and to cooperate with each other, in
seeking the consent and  approval of the  Commission  to the  assignment  of all
Authorizations  heretofore granted and issued in connection with the Station, as
herein  provided;  diligently  and  promptly to prepare,  sign and file with the
Commission  within  ten (10)  days from the date of this  Agreement  any and all
applications  requisite or  desirable to procure such consent and approval  (the
"Applications");  and  diligently  and  promptly  to  prepare  and submit to the
Commission all information, data, exhibits, amendments,  resolutions, statements
and other material necessary or proper in connection with the Applications;  and
diligently to pursue the grant of a Final Order  approving such  Applications by
the Commission. With respect to the foregoing, ARS and ARS License hereby agree,
commit and bind  themselves to prepare and deliver to Entercom on or before five
(5) days from the date of this Agreement ARS' and ARS License's  portions of all
applications  and documents  necessary for filing with the  Commission to obtain
the  consent  and  approval  of  


                                       32
<PAGE>

the  Commission  as  required  to permit the  consummation  of the  transactions
contemplated by this Agreement.

                  7.2.  INSPECTION BY ENTERCOM.  During the period from the date
of  this  Agreement  to the  Closing  Date,  ARS and ARS  License  shall  afford
engineers,  attorneys,  accountants and other consultants and/or representatives
of Entercom free access during normal business hours to the employees,  offices,
studios,  transmitter site, equipment, records and other documents pertaining to
the Station and furnish Entercom with all information concerning said Station as
Entercom may  reasonably  request,  including  but not limited to  applications,
responses to the Commission  inquiries,  and other documents filed by ARS or ARS
License  with the  Commission.  For  purposes  of the  foregoing  records  shall
include, without limitation, any sales, research, consulting and ratings reports
relating to the Station.

                  7.3.  CONFIDENTIALITY.  Entercom  hereby  covenants and agrees
that in the  event  the  transactions  contemplated  by this  Agreement  are not
consummated for any reason whatsoever,  Entercom will upon request return to ARS
within  ten  (10)  days  from  the  date  of such  request,  all  copies  of all
information  designated  at the time of delivery as  confidential  by ARS or ARS
License regarding ARS or ARS License,  the Assets,  the Station and the business
and operation of the Station;  and Entercom hereby  covenants and agrees to hold
all such information (the  "Confidential  Information") in confidence and not to
disclose, or cause any representative, agent or employee of Entercom to disclose
to any third parry any portion of the  Confidential  Information  and not to use
any portion of the Confidential Information for Entercom's own benefit.

                  7.4.   HART-SCOTT-RODINO    NOTIFICATION.   As   promptly   as
practicable  and no later  than  twenty  (20) days  after the date  hereof,  the
parties  hereto  shall  take all steps  reasonably  necessary  to file and shall
participate in the filing of all requisite documents and notifications  required
to be filed  pursuant to the HSR Act.  All filing fees in  connection  with such
notifications  shall be divided  equally  between ARS and Entercom.  The parties
agree diligently to take and fully cooperate in the taking of, all necessary and
proper steps,  and provide any additional  information  reasonably  requested in
order to obtain promptly the expiration of the waiting period under the HSR Act.


                                  ARTICLE VIII

                                     CLOSING

                  8.1.  CLOSING.  Closing shall take place at the time and place
agreed to by the parties hereto.  In the absence of agreement thereon and except
as modified  elsewhere  herein,  the  Closing  shall take place by mail at 10:00
a.m.,  Eastern  Time on a date  selected  by  Entercom on at least five (5) days
prior  written  notice but not later than,  except as set forth below,  five (5)
business  days  after  the  later  of:  (a) the  satisfaction  or waiver of each
condition to closing contained herein (other than such conditions as can only be
satisfied at the Closing); and (b) the expiration of any period of extension for
Closing provided elsewhere in this Agreement.  If such date falls on a Saturday,
Sunday or legal holiday in the State of California, then such Closing shall take
place as provided herein on the next business day.

                  8.2.  ADJUSTMENTS.  Operation of the Assets and the income and
expense  attributable thereto up to the Adjustment Time shall be for the account
of ARS and  thereafter for the account of Entercom.  Proration  between ARS, ARS
License and Entercom of the items

                                       34

<PAGE>

mentioned  in this  section  shall  be  effected  as of the  Adjustment  Time in
accordance with the provisions of this section.  If the amount of any such items
cannot  readily be  ascertained  on the Closing  Date, an estimate of the proper
proration  of such  items  shall be agreed  upon by the  parties  and the actual
proration  of such item shall be  computed  and paid not later than  ninety (90)
days from the Closing Date.  Such proration shall include,  without  limitation,
the following:

                           8.2.1.  ARS shall be  entitled to all income or other
consideration  to be paid on account of all  Contracts or Leases,  to the extent
that such income or other  considerations  accrue before the Adjustment Time and
thereafter Entercom shall be entitled to same.

                           8.2.2. All accounts  receivable for broadcasts on the
Station which occur prior to the  Adjustment  Time (the  "Accounts  Receivable")
shall belong to ARS and for broadcasts  which occur  thereafter  shall belong to
Entercom.  Within five (5) days  following  the  Closing,  ARS shall  deliver to
Entercom a Schedule of Accounts  Receivable of the Station as of the  Adjustment
Time (the "Schedule of Accounts Receivable"). Entercom agrees to collect for ARS
its Accounts  Receivable as shown on the Schedule of Accounts  Receivable  for a
period of one hundred twenty (120) days  following the Closing.  ARS will at the
Closing provide Entercom a power of attorney or other required authorization for
the limited purpose of allowing Entercom to endorse and deposit checks and other
instruments  received  in  payment of such  Accounts  Receivable.  All  payments
received by Entercom  from any  customer  whose name  appears in the Schedule of
Accounts  Receivable and who is also a customer of Entercom shall be credited as
payment of the account or invoice designated by such customer. In the absence of
any such  designation  by the customer,  payments shall be first credited to the
oldest  invoice  which is not  disputed by said  customer.  Entercom  shall keep
accurate records of the payment  



                                       35
<PAGE>

received  by it on  such  Accounts  Receivable  and ARS  shall  have  access  at
reasonable  times to  Entercom's  records to verify such status of the  Accounts
Receivable.  Within  thirty  (30) days from the end of each  standard  broadcast
month,  Entercom shall remit to ARS amounts previously  collected by Entercom on
such Accounts Receivable,  along with a written accounting of same. Any Accounts
Receivable that have not been collected within such one hundred twenty (120) day
period  shall be  returned  to ARS,  together  with all  records  in  connection
therewith, whereupon ARS may pursue collection thereof in such manner as ARS, in
its sole  discretion,  may  determine.  Entercom  shall  not  have the  right to
compromise, settle or adjust the amounts of any such Accounts Receivable without
ARS' prior written  consent.  Except to remit collected  Accounts  Receivable in
accordance herewith,  Entercom shall have no liability or obligation to ARS with
respect to the  collection  of ARS'  accounts and shall not be obligated to take
any action to collect such accounts.

                           8.2.3.  Rental and other obligations under the Leases
and Contracts to be assigned and assumed hereunder including utilities and other
cost or expenses payable thereunder.

                           8.2.4. General and special state, county,  school and
municipal taxes and assessments (exclusive of rebates, penalties or interest) on
the  Property to be  conveyed  hereunder  payable  during the fiscal year of the
taxing  authority  in which the  Adjustment  Time falls and if the amount of any
such items may not then be ascertained,  an interim adjustment shall be effected
on the basis of the corresponding  items for the preceding year subject to final
adjustment  at such time as the  relevant  information  becomes  available.  The
foregoing  notwithstanding,  ARS and/or ARS License shall be responsible for and
shall pay any  penalties  or  



                                       36
<PAGE>

interest  which are  assessed and be entitled to recover any rebate or refund on
account of any such taxes or amounts  which  accrue at or before the  Adjustment
Time,  provided  that any such  penalty or  interest  or portion  thereof  which
results  from any failure by Entercom  to perform any of  Entercom's  obligation
under this Agreement after the Closing shall be Entercom's responsibility.

                  8.3. CLOSING DELIVERIES TO ENTERCOM. At or before the Closing,
ARS  and/or ARS  License  shall  deliver to  Entercom  the  following  items and
documents in form  satisfactory  to counsel for Entercom and properly  executed,
unless  Entercom  shall waive in whole or in part in writing  such  delivery and
then only to the extent of such waiver:

                           8.3.1.  Bills  of  Sale  and  assignments  and  other
instruments of transfer and conveyance, transferring to Entercom the Property to
be sold,  transferred or assigned  hereunder and the rights and interests  under
the Leases and  Contracts  being  assigned to Entercom  hereunder  and  estoppel
certifications  by  the  other  parties  to  such  Leases  and  those  Contracts
designated as material  contracts on Schedule  4.1.7 that ARS and/or ARS License
are not then in default  under the terms of the Lease or  Contract to which such
other party is a party.

                           8.3.2.  An assignment of all right title and interest
of ARS  License  in  and to the  Authorizations  and  all  pending  applications
relating to the Station before the Commission.

                           8.3.3.  All keys to and actual  possession  of all of
the Property, in the same condition as the same now is, except for ordinary wear
and tear thereof.

                           8.3.4.  A certified  copy of resolutions of the Board
of Directors of ARS and ARS License duly authorizing the execution, delivery and
performance  of this Agreement 



                                       37
<PAGE>

and all  documents  to be executed  and  delivered by ARS and ARS License at the
Closing and thereafter.

                           8.3.5. A certificate  signed by an authorized officer
of ARS and ARS License, to the effect that no act or omission of ARS or state of
facts  contrary to the  agreements,  representations  and  warranties  contained
herein  has  been  taken  or has  occurred  and that  said  representations  and
warranties are true and correct in all material  respects as of the Closing Date
with the same effect as if made as of the time of Closing.

                           8.3.6.  The  consents  of any public  authorities  or
third persons that may be required in connection  with the  performance  of this
Agreement.

                           8.3.7. Opinions of Michael B. Milsom, General Counsel
for ARS, with respect to matters  other than  Commission related  matters and of
Dow, Lohnes & Albertson, with respect to Commission related matters, dated as of
the date of Closing and in form and  substance  satisfactory  to Entercom to the
effect that:

                                    8.3.7.1.    ARS   and   ARS    License   are
corporations  duly organized and existing and in good standing under the laws of
the State of  Delaware  and are duly  qualified  to do  business in the State of
California and any other jurisdiction where such qualification is required;

                                    8.3.7.2.   ARS  and  ARS  License  have  the
corporate power and authority to execute, deliver and perform this Agreement and
to convey, assign, transfer and deliver the Assets pursuant to the terms of this
Agreement;

                                    8.3.7.3. All corporate  proceedings required
to be taken by ARS and ARS License to authorize  ARS and ARS License to execute,
deliver and perform this 


                                       38
<PAGE>

Agreement  and to convey,  assign,  transfer  and deliver to Entercom the Assets
hereunder have been duly and properly taken;

                                    8.3.7.4.  This  Agreement  and all documents
and instruments  executed and delivered hereunder by ARS and ARS License are the
legal,  valid  and  binding  obligations  of ARS and ARS  License  and have been
validly  executed on behalf of ARS and ARS License and are valid and enforceable
in accordance with their terms,  except as such enforceability may be limited by
applicable bankruptcy,  insolvency,  reorganization,  moratorium or similar laws
affecting the enforcement of creditor's  rights  generally and by application of
general  equitable  principles  affecting the enforcement of equitable  remedies
(including within said equitable  remedies,  without  limitation,  the remedy of
specific performance).

                                    8.3.7.5.  The  execution and delivery by ARS
and ARS License of this Agreement and all the documents delivered by ARS and ARS
License  pursuant to this  Agreement and the sale of the Assets to Entercom will
not: (i) constitute a violation of the Certificate of Incorporation, as amended,
or the Bylaws, as amended, of ARS or ARS License; (ii) constitute a violation of
any statute,  judgment,  order, decree or regulation of any court,  governmental
authority  or  arbitrator  applicable  or  relating  to ARS,  ARS License or the
Assets; (iii) conflict with,  constitute grounds for termination of, result in a
breach of,  constitute a default under, or accelerate or permit the acceleration
of any performance required by the terms of any material agreement known to such
counsel to which ARS or ARS  License  is a party or by which ARS or ARS  License
may be bound;  or (iv)  create any claim,  lien,  charge or  encumbrance  on the
Station or the Assets pursuant to or as a consequence of any of the foregoing.

                                       39
<PAGE>

                                    8.3.7.6.  All other actions and  proceedings
required by federal,  state and local laws or this  Agreement to be taken by ARS
or ARS License at or prior to the Closing in connection  with this Agreement and
the transactions provided for therein have been duly and validly taken.

                                    8.3.7.7.  Such  counsel  knows of no  claim,
legal action, court action,  suit,  arbitration,  governmental  investigation or
other legal, administrative, or tax proceeding pending or threatened against ARS
or ARS License or to which ARS or ARS License is or would be a party or relating
to the Assets or the  transactions  contemplated  by this Agreement  which would
have an  adverse  effect  on the  Station  business  or on the  Assets or on the
transfer  of the Assets to  Entercom,  other  than  those set forth in  Schedule
4.1.14.

                                    8.3.7.8. ARS License is the authorized legal
holder of the  Authorizations.  The Authorizations are in full force and effect.
To such counsel's knowledge after reasonable investigation: (i) there is not now
pending or threatened any action by or before the Commission to revoke,  cancel,
rescind,  modify or refuse to renew any of the  Authorizations and (ii) there is
not  then  pending  or  threatened,  issued  or  outstanding  by or  before  the
Commission, any investigation,  Order to Show Cause, Notice of Violation, Notice
of Apparent  Liability  or Notice of  Forfeiture  or  complaint  concerning  the
Station or  concerning  ARS or ARS License if such matter  could have an adverse
effect on the Station or the  consummation of the  transactions  contemplated by
this Agreement.

                                    8.3.7.9. The Commission has granted approval
to the assignment of the  Authorizations  and the application for renewal of the
Authorizations such grants have become a Final Order (unless waived by Entercom)
in  accordance  with the rules and  


                                       40
<PAGE>

regulations of the  Commission,  subject to timely notice of consummation of the
sale of the Assets and assignment of the Authorizations.

                           8.3.8. All books,  records, public files,  contracts,
leases, Commission filings,  correspondence,  files and other documents relating
to and  necessary or  appropriate  to the  operation  of the Station,  excluding
however,  accounting  records  relating  to ARS'  and ARS  License's  period  of
ownership  (provided  Entercom is given copies thereof),  minute books and other
corporate records of ARS or ARS License.

                           8.3.9.  The  Communications  Site  License  Agreement
executed by American  Tower  Systems  Corporation,  in the same form attached as
Exhibit A hereto.

                           8.3.10.  ARS  shall  deliver  to  Entercom  a General
Warranty Deed in recordable  form  transferring a fee simple interest in any fee
estate included within the Property other than the real property  subject to the
Communications Site License Agreement and a fully paid policy of title insurance
(ATLA  owners  policy-Form  1970,  if  available  or Form 1984 or 1990 with 1970
endorsements),  for the benefit of insuring  good and  marketable  title to such
real  property  free and clear of all liens and  encumbrances  issued by a title
insurance company reasonably  acceptable to Entercom and in the amount allocated
to such real property hereunder, subject to standard title exceptions and survey
exceptions,  none of which will impair or interfere  with the  continued  use of
such real property as such is currently used.

                  8.4. CLOSING DELIVERIES TO ARS. At the Closing, Entercom shall
deliver to ARS or a qualified intermediary  designated by ARS the Purchase Price
as set forth in Section  2.3 and  deliver to ARS or a  "qualified  intermediary"
designated by ARS the  following  

                                       41
<PAGE>

items  and  documents  in form  satisfactory  to  counsel  for ARS and  properly
executed  unless ARS shall waive in whole or part in writing  such  delivery and
then only to the extent of such waiver:

                           8.4.1.   An  opinion  of  John  C.  Donlevie,   Esq.,
Entercom's  General  Counsel,  in form and substance  satisfactory to ARS to the
effect that Entercom is a corporation  duly organized,  validly  existing and in
good  standing in the  Commonwealth  of  Pennsylvania,  is duly  authorized  and
empowered  to enter into all of its  undertakings  herein  provided  and is duly
qualified to do business in the State of California; that this Agreement and all
documents to be executed or delivered hereunder by Entercom at Closing are valid
and binding upon Entercom in accordance with their respective  terms,  except as
such  enforceability  may  be  limited  by  applicable  bankruptcy,  insolvency,
reorganization,  moratorium  and  similar  laws  affecting  the  enforcement  of
creditors' rights generally and by application of general  equitable  principles
affecting the enforcement of equitable remedies (including within said equitable
remedies without limitation the remedy of specific  performance);  all corporate
proceedings  required to be taken by Entercom to authorize  Entercom to execute,
deliver  and perform  this  Agreement  have been duly and  properly  taken;  and
Entercom's  counsel does not know or have any reasonable  grounds to know of any
violation  by Entercom of any of its  agreements,  representations,  warranties,
certificates or affidavits  contained herein or delivered  pursuant hereto which
would prevent Entercom from consummating the Closing hereunder.  With respect to
matters of California law such opinion of Entercom's counsel may be based solely
on or may be given by Entercom's California counsel.

                           8.4.2.  One  or  more  Agreements   whereby  Entercom
assumes  and  agrees  to pay  when  due any  liabilities  of ARS or ARS  License
specifically assumed by Entercom 


                                       42
<PAGE>

hereunder,  including without limitation,  those liabilities  accruing after the
Adjustment  Time with respect to those  Leases and  Contracts  being  assumed by
Entercom hereunder.

                           8.4.3.  Certified  copies of the  resolutions  of the
Board of Directors of Entercom  approving and ratifying  this  Agreement and all
transactions contemplated by this Agreement.

                           8.4.4.  A certificate  signed by the President or any
Vice  President  of Entercom to the effect that with respect to any matter which
would prevent  Entercom  from  consummating  the Closing,  no act or omission of
Entercom  or state of facts  contrary  to the  agreements,  representations  and
warranties  contained  herein  has been  taken  or has  occurred  and that  said
representations  are true and correct as of the Closing Date with the same force
and effect as if made as of the time of Closing.

                  8.5. COVENANTS OF FURTHER ASSURANCE.  At and after the time of
Closing, upon request of Entercom, ARS and/or ARS License shall take such action
and deliver to Entercom such further  instruments of  assignment,  conveyance or
transfer or other  documents  of further  assurance as in the opinion of counsel
for Entercom  may be  reasonably  necessary  to evidence the full and  effective
transfer,  conveyance  and  assignment of the Assets and  possession  thereof to
Entercom, its successors and assigns, and to assure complete performance of this
Agreement by ARS and ARS License in all respects.

                  8.6.  DAMAGE  TO  PROPERTY.  If, at the time of  Closing,  the
tangible  personal  property to be sold  hereunder  shall have  suffered loss or
damage to an extent that affects the value  thereof and ARS or ARS License shall
not have  repaired,  replaced or restored  the same with  property of like kind,
quality and value, Entercom shall have the right at its 


                                       43
<PAGE>

election to  (i) complete  the purchase and Closing,  in which event it shall be
entitled to a reduction in the Purchase Price equal to the greater of the amount
necessary to repair,  replace or restore such damaged  property with property of
like kind,  quality  and value or the amount of any and all  insurance  proceeds
available  to ARS,  if any,  collectible  by  reason  of  such  loss or  damage,
(ii) postpone  closing  until  such  time as ARS or ARS  License  shall  have so
repaired, replaced or restored such property, provided that if such postponement
exceeds  ninety (90) days then Entercom  shall have the right to terminate  this
Agreement in accordance with Article IX hereof.

                  8.7. TAXES ON TRANSACTION.  All sales, purchase, transfer, use
or documentary  taxes, if any, payable by reason of this Agreement or any of the
transactions contemplated hereby or the sale, transfer or delivery of any of the
Assets to Entercom  whether or not imposed on ARS or ARS License,  shall be paid
and borne by ARS or ARS License, either directly or by reimbursement to Entercom
and ARS or ARS License shall  indemnify and hold Entercom  harmless with respect
to the above  taxes and any  expenses  incurred  by  Entercom  relating to same.


                                   ARTICLE IX

                    TERMINATION, DEFAULT AND INDEMNIFICATION

                  9.1. TERMINATION BY REASON OTHER THAN DEFAULT.  This Agreement
may be terminated by a party hereto not then in default  hereunder  upon written
notice to the other party if:

                           9.1.1.  Events  occur  which  give rise to a specific
right  hereunder to terminate  this Agreement by the party seeking to terminate;
or

                                       44
<PAGE>


                           9.1.2. Any material condition set forth herein to the
obligation  of the party  seeking to  terminate  this  Agreement to complete the
transaction  has not been satisfied or complied with by the Closing Date and has
not been waived by the party seeking to terminate.

                  9.2.  EFFECT OF TERMINATION  BY REASON OTHER THAN DEFAULT.  If
this  Agreement is duly  terminated  by either party as provided in Section 9.1,
then all  obligations  of either party to the other shall cease and both parties
shall be fully and finally released herefrom. 

                  9.3.  DEFAULT.   The  following  shall  constitute  a  default
hereunder:

                           9.3.1. If any of the representations or warranties of
a party contained herein is inaccurate or breached in any material respect; or

                           9.3.2.  If any of the obligations to be performed her
under by a party hereto is not  performed  during the period or at or before the
time specified herein for such performance.

                  9.4.  ARS'  REMEDY.  In the event  Entercom  is  obligated  to
complete Closing  hereunder and defaults in such obligation which default is not
waived by ARS, ARS' sole remedy shall be to receive Two Hundred Thousand Dollars
($200,000)  as  liquidated  damages in full and final  settlement  of all claims
under  this  Agreement  and  there  shall be no other  or  further  obligations,
liabilities  or remedies of the parties  hereunder.  In the event Closing occurs
hereunder,  ARS' or ARS  License's  remedy for any default by Entercom  shall be
indemnification pursuant to Section 9.7 hereof.


                                       45
<PAGE>

                  9.5.  ENTERCOM'S  REMEDIES.  In the event of a default  by ARS
and/or ARS License  hereunder,  which is not waived by Entercom,  Entercom shall
have the following remedies:

                           9.5.1.  Entercom may by written notice to ARS and ARS
License  terminate  this  Agreement in which event Entercom shall be entitled to
recover  from ARS or ARS License any damages  Entercom  sustained as a result of
the  default by ARS and/or ARS License  hereunder.  

                           9.5.2.Entercom  may seek specific  performance by ARS
or ARS License of ARS' or ARS License's  obligations hereunder and shall also be
entitled to any other remedy  available at law or in equity,  including  without
limitation  the recovery of any damages  incurred by Entercom as a result of the
default by ARS or ARS License hereunder. ARS and ARS License covenant that under
such  circumstances  they  shall not  assert  in  defense  of an action  seeking
specific  performance  of this  Agreement in favor of Entercom that Entercom has
available  adequate  remedies at Law.  

                           9.5.3.In   the  event   Closing   occurs   hereunder,
Entercom's  remedy for any  default by ARS or ARS  License  shall b  indemnified
pursuant to Section 9.7 hereof.

                  9.6.  LIQUIDATED  DAMAGES NOT A PENALTY.  With  respect to the
liquidated  damages  provided for in Section 9.4 her of, ARS and Entercom hereby
acknowledge  and agree that the damage that may be  suffered by either  party in
the event of a default by the other party hereunder is not readily ascertainable
and that such liquidated damages as of the date hereof are a reasonable estimate
of such damages and are intended to  compensate  ARS for any such damage and are
not to be construed as a penalty.

                                       46
<PAGE>

                  9.7. INDEMNIFICATION.

                           9.7.1.  By ARS and ARS  License.  ARS and ARS License
shall indemnify, defend and hold Entercom and its officers, directors, employees
and  affiliates  harmless  from,  against and with  respect to any and all loss,
damage, claim, obligation,  assessment, cost, liability, and expense (including,
without limitation,  reasonable  attorney's fees and costs and expenses incurred
in investigating,  preparing, defending against or prosecuting any litigation or
claim, action,  suit,  proceeding or demand) of any kind or character (a "Loss")
incurred,  suffered,  sustained  or  required  to be  paid  by any of  them  and
resulting from, related to or arising out of:

                                    (a) any breach of any of the representations
or warranties made by ARS or ARS License in or pursuant to this Agreement, or in
any agreement,  document or instrument executed and delivered pursuant hereto or
in connection with the Closing hereunder;

                                    (b) any  failure  by ARS or ARS  License  to
perform or observe,  or to have performed or observed,  in full, any covenant or
agreement to be performed or observed by it pursuant to this Agreement or in any
agreement,  document or instrument  executed and delivered by or on behalf of it
in connection with the Closing hereunder;

                                    (c) any and  all  obligations  of ARS or ARS
License,  except for obligations to be assumed or retained by Entercom under the
terms of this Agreement; or

                                    (d)  ARS'  or  ARS  License's  operation  or
ownership  of the Assets prior to the  Adjustment  Time,  including  any and all
obligations and liabilities  


                                       47
<PAGE>

arising  under the  Authorizations  or the  Contracts and Leases which accrue or
relate to a period of time prior to the Adjustment Time; or

                           9.7.2. By Entercom.  If Closing does not occur due to
a default by Entercom in its obligation to complete such Closing hereunder, ARS'
and ARS  License's  remedy shall be liquidated  damages  pursuant to Section 9.4
hereof. Provided Closing occurs hereunder,  Entercom shall indemnify, defend and
hold ARS and ARS License and their officers, directors, employees and affiliates
harmless  from,  against  and with  respect  to any Loss (as  defined in Section
9.7.1) incurred,  suffered,  sustained or required to be paid by any of them and
resulting from, related to or arising out of:

                                    (a) any breach of any of the representations
or  warranties  made by  Entercom in or  pursuant  to this  Agreement  or in any
agreement,  document or instrument  executed and delivered pursuant hereto or in
connection with the Closing hereunder;

                                    (b) any  failure by  Entercom  to perform or
observe, or to have performed or observed, in full, any covenant or agreement to
be performed or observed by it pursuant to this  Agreement or in any  agreement,
document  or  instrument  executed  and  delivered  by  or  on  behalf  of it in
connection with the Closing hereunder; or

                                    (c)  any  and all  obligations  of  Entercom
except for  obligations  to be assumed or retained by ARS and ARS License  under
the terms of this Agreement; or


                                    (d) Entercom's operation or ownership of the
Assets after the  Adjustment  Time,  including any and all  liabilities  arising
under the Authorizations or the 


                                       48
<PAGE>

Contracts  assumed by Entercom and Leases assumed by Entercom which accrue after
the Adjustment  Time or which relate to or arise out of events  occurring  after
the Adjustment Time.

                           9.7.3. Procedures.  Any party seeking indemnification
under this  Agreement  (the  "Indemnified  Party") shall give the party from who
indemnification is sought (the "Indemnifying Party") written notice of any claim
or the commencement of any action or proceeding for which the Indemnified  Party
seek  indemnification,  and the Indemnified  Party shall permit the Indemnifying
Party to assume the defense of any such claim or any  litigation  resulting from
such claim,  unless injunctive relief is sought against the Indemnified Party in
which case the  Indemnified  Party shall have the right to join in any  defense.
The Indemnified Party's failure to give the Indemnifying Party notice under this
clause  shall not preclude the  Indemnified  Party from seeking  indemnification
from the  Indemnifying  Party except to the extent that the Indemnified  Party's
failure has materially prejudiced the Indemnifying Party's ability to defend the
claim or litigation. The Indemnifying Party shall not settle any claim for which
the Indemnified Party seeks  indemnification or consent to entry of any judgment
in  litigation  arising  from such a claim  without  obtaining  a release of the
Indemnified Party from all liability in respect of such claim or litigation.  If
the  Indemnifying  Party  shall not  assume  the  defense  of any such  claim or
litigation  resulting  therefrom,  or if injunctive relief is sought against the
Indemnified Party, the Indemnified Party may defend against or settle such claim
or litigation in such manner as it may deem appropriate.  The Indemnifying Party
shall promptly  reimburse the  Indemnified  Part for the amount of all expenses,
legal or otherwise,  incurred by the  Indemnified  Party in connection  with the
defense  against or  settlement  of such claim or 


                                       49
<PAGE>

litigation.   If  no  settlement  of  the  claim  or  litigation  is  made,  the
Indemnifying Party shall promptly reimburse the Indemnified Party for the amount
of any judgment  rendered with respect to such claim or in such  litigation  and
for all expenses,  legal or otherwise,  incurred by the Indemnified Party in the
defense against such claim or litigation.


                                    ARTICLE X

                               GENERAL PROVISIONS

                  10.1.  EXPENSES OF THE PARTIES.  Except as otherwise  provided
herein, all expenses involved in the preparation, authorization and consummation
of this  Agreement,  including,  without  limitation,  all fees and  expenses of
agents, representatives,  counsel and accountants in connection therewith and in
connection with applications to the Commission hereunder,  shall be borne solely
by the party who shall have incurred the same, and the other party shall have no
liability in respect thereof. The foregoing  notwithstanding,  the parties agree
to pay in equal shares any filing fees of the Commission  relating to the filing
of the Applications.

                  10.2.  BROKERS.  Each party hereto  represents and warrants to
the other party  hereto that it has not incurred any  obligation  or  liability,
contingent or otherwise, for brokerage or finders' fees or agents commissions or
other  like  payment  in  connection  with this  Agreement  or the  transactions
contemplated hereby for which the other party will have any liability,  and each
party  hereto  agrees to  indemnify  and hold the other  party  hereto  harmless
against and in respect to any such  obligation or liability  based in any way on
any agreement,  arrangement or  understanding  claimed to have been made by such
party with any third party.

                  10.3.   SURVIVAL   OF  ARS'  AND  ARS   LICENSE'S   COVENANTS,
REPRESENTATIONS  AND WARRANTIES.  The provisions hereof which by their terms are
to  be  performed   and  observed   after  the  Closing  Date  and  the  several
representations,  warranties,  indemnities and agreements of ARS and ARS License
herein  contained  shall  survive the Closing  Date  hereunder  and shall remain
effective and unaltered or unimpaired by any investigation that may have been or
may be made at any time prior to Closing by or on behalf of the Entercom.

                  10.4.  AMENDMENT AND WAIVER.  This Agreement cannot be changed
or terminated  orally.  Any amendment or modification  hereof must be in writing
signed by the party against whom enforcement is sought.  No waiver of compliance
with any  provision or  condition  hereof,  and no consent  provided for herein,
shall be effective unless evidenced by an instrument in writing duly executed by
the party sought to be charged with such waiver or consent.

                  10.5. EFFECT OF THIS AGREEMENT.  This Agreement sets forth the
entire  understanding of the parties and supersedes any and all prior written or
oral agreements,  arrangements or understandings  relating to the subject matter
hereof.  No  representation,  promise,  inducement or statement of intention has
been made by either party which is not embodied in this  Agreement,  and neither
party shall be bound by, or be liable for, any alleged representation,  promise,
inducement or statement of intention not embodied  herein unless same shall have
been made  subsequent  hereto,  shall be in  writing  and shall be signed by the
party to be charged therewith. This Agreement shall be binding upon and inure to
the benefit of the parties and their respective successors and assigns.


                                       51
<PAGE>

                  10.6.  HEADINGS.  The  article  or  section  headings  of this
Agreement are for convenience of reference only and do not form a part of and do
not in any way modify, interpret or construe the intention of the parties.

                  10.7.  COUNTERPARTS.  This Agreement may be executed in one or
more  counterparts and all such  counterparts  shall be construed as one and the
same instrument.

                  10.8.  GOVERNING LAW. The construction and performance of this
Agreement shall be governed by the laws of the State of California.

                  10.9. NOTICES. Any notice,  report,  demand, waiver or consent
required or permitted  hereunder  shall be in writing and shall be given by hand
delivery,   by  prepaid  registered  or  certified  mail,  with  return  receipt
requested,  by an established  national  overnight  courier  providing  proof of
delivery for next business day delivery or by telecopy addressed as follows:

If to ARS/ARS License:     Steven B. Dodge, President & CEO
                           American Radio Systems Corporation
                           116 Huntington Avenue
                           Boston, MA  02116-5749
                           Telecopy Number:  (617) 375-7575

with a copy to:            Michael B. Milsom, Esq.
                           American Radio Systems Corporation
                           116 Huntington Avenue
                           Boston, MA  02116-5749
                           Telecopy Number:  (617) 375-7575

                           John Pomeroy, Esq.
                           Dow, Lohnes & Albertson, PLLC
                           1200 New Hampshire Avenue, N.W.
                           Suite 800
                           Washington, D.C. 20036-6802

                                       52
<PAGE>


If to Entercom:            Joseph M. Field, President
                           Entertainment Communications, Inc.
                           401 City Avenue, Suite 409
                           Bala Cynwyd, PA 19004
                           Telecopy Number:  (610) 660-5620

with a copy to:            Joseph D. Sullivan, Esq.
                           Latham & Watkins
                           1001 Pennsylvania Avenue, N.W., Suite 1300
                           Washington, D.C. 20004
                           Telecopy Number:  (202) 637-2201

The date of any such notice and service  thereof  shall be deemed to be: (i) the
day of delivery if hand  delivered or delivered by overnight  courier;  (ii) the
day of delivery as indicated on the return  receipt if  dispatched  by mail,  or
(iii)  the  date  of  telecopy  transmission  as  indicated  on  the  telecopier
transmission  report  provided  that  any  telecopy  transmission  shall  not be
effective  unless a paper copy is sent by  overnight  courier on the date of the
telecopy  transmission.  Either  party may change its address for the purpose of
notice by giving notice of such change in accordance with the provisions of this
section.

                  10.10. STATION EMPLOYEES. ARS and ARS License agree that for a
period of one year after the Closing neither they nor any of their successors or
assignees will employ, offer employment to or counsel others to offer employment
to any current employee of the Station that Entercom employs after the Closing.

                  10.11. SECTION 1031 ASSET EXCHANGE.

                           10.11.1. Entercom may elect to effect the acquisition
of all or part of the  Assets as part of a  deferred  like-kind  exchange  under
Section 1031 of the Internal  Revenue Code of 1986, as amended (the "Code"),  in
lieu of buying such assets  hereunder.  If Entercom so elects,  it shall provide
notice to ARS and ARS License of its  election,  and  


                                       53
<PAGE>

thereafter  (i) may at any time at or prior to Closing  assign its rights  under
this  Agreement  to  a  "qualified  intermediary"  as  defined  in  Treas.  Reg.
ss._1.1031(k)-1(g)(4),  subject  to all of ARS'  and ARS  License's  rights  and
obligations  hereunder and (ii) shall  promptly  provide  written notice of such
assignment to all parties hereto.  Notwithstanding  the assignment of Entercom's
rights hereunder,  the parties  acknowledge and agree that the  representations,
warranties and covenants of ARS and ARS License hereunder are for the benefit of
Entercom and shall remain enforceable by Entercom against ARS and ARS License in
accordance  with the terms hereof.  ARS and ARS License shall cooperate with all
reasonable  requests of Entercom and the "qualified  intermediary"  in arranging
and  effecting  the exchange as one which  qualifies  under  section 1031 of the
Code.  Without  limiting the generality of the foregoing,  if Entercom has given
notice of its intention to effect the  acquisition  of all or part of the Assets
as part of a  tax-deferred  exchange,  ARS and ARS  License  shall (i)  promptly
provide Entercom with written acknowledgment of such notice and (ii) at Closing,
accept  payment  for all or that  portion  of the  Assets  for  which  like-kind
exchange  treatment  is sought by  Entercom  from the  "qualified  intermediary"
rather than from  Entercom  (which  payment shall  discharge  the  obligation of
Entercom  hereunder to make payment for such  assets) and  transfer,  assign and
convey such assets to Entercom.

                           10.11.2.  ARS and ARS License may elect to effect the
transfer  and  conveyance  of all or part of the  Assets  as part of a  deferred
like-kind exchange under Section 1031 of the Code in lieu of selling such assets
hereunder.  If ARS and ARS  License  so  elect,  they  shall  provide  notice to
Entercom of their  election,  and  thereafter (i) may at any time at or prior to
Closing assign their rights under this  Agreement to a "qualified  intermediary"
as defined

                                       54
<PAGE>

in Treas.  Reg.  ss._1.1031(k)-1(g)(4),  subject to all of Entercom's rights and
obligations  hereunder and (ii) shall  promptly  provide  written notice of such
assignment to all parties  hereto.  Entercom shall cooperate with all reasonable
requests of ARS and ARS License and the  "qualified  intermediary"  in arranging
and  effecting  the exchange as one which  qualifies  under  section 1031 of the
Code.  Without limiting the generality of the foregoing,  if ARS and ARS License
has given notice of their  intention to effect the acquisition of all or part of
the  Assets as part of a  tax-deferred  exchange,  Entercom  shall (i)  promptly
provide ARS and ARS License with written  acknowledgment of such notice and (ii)
at Closing,  pay that portion of the Purchase Price allocable to that portion of
the  Assets  for which  like-kind  exchange  treatment  is sought by ARS and ARS
License  to the  "qualified  intermediary"  rather  than to ARS and ARS  License
(which  payment shall  discharge the  obligation of Entercom to make payment for
such assets hereunder)





                     [THIS SPACE LEFT INTENTIONALLY BLANK]





<PAGE>


IN WITNESS  WHEREOF,  the parties hereto have caused this Agreement to be signed
by their duly authorized corporate officers and their respective corporate seals
thereunto affixed on this the day and date first written above.


                                     ARS:

                                     AMERICAN RADIO SYSTEMS
                                     CORPORATION

                                     By:_______________________________

                                     Title:____________________________



                                     ARS LICENSE:

                                     AMERICAN RADIO SYSTEMS LICENSE
                                     CORPORATION

                                     By:_______________________________

                                     Title:____________________________



                                     ENTERCOM

                                     ENTERTAINMENT COMMUNICATIONS,
                                     INC.

                                     By:_______________________________

                                     Title:____________________________








                                       56




                                                                   EXHIBIT 10.15











                            ASSET PURCHASE AGREEMENT

                                 By and Between

                          AMERICAN TOWER SYSTEMS, INC.

                                       and

                           SUBURBAN CABLE TV CO. INC.

                                   Dated as of

                                  July 8, 1997



















<PAGE>





                                

<TABLE>
<CAPTION>
                                TABLE OF CONTENTS

<S>        <C>                                                                                                  <C>
ARTICLE 1  DEFINED TERMS..........................................................................................1

ARTICLE 2  SALE AND PURCHASE OF ASSETS............................................................................1


                  2.1      Agreement to Sell and Buy..............................................................1
                  2.2      Assumption of Liabilities and Obligations. ............................................2
                  2.3      Closing; Purchase Price................................................................4
                  2.4      Accounts Receivable....................................................................5

ARTICLE 3  REPRESENTATIONS AND WARRANTIES OF SELLER...............................................................6


                  3.1      Organization and Business; Power and Authority; Effect of Transaction..................6
                  3.2      Financial and Other Information..  ....................................................7
                  3.3      Changes in Condition...................................................................7
                  3.4      Materiality............................................................................7
                  3.5      Title to Properties; Leases............................................................7
                  3.6      Compliance with Private Authorizations.................................................8
                  3.7      Compliance with Governmental Authorizations and Applicable Law.........................9
                  3.8      Intangible Assets.....................................................................10
                  3.9      Related Transactions..................................................................10
                  3.10     Insurance.............................................................................10
                  3.11     Tax Matters.  ........................................................................11
                  3.12     Broker or Finder......................................................................11
                  3.13     Employment Arrangements...............................................................11
                  3.14     Material Agreements...................................................................12
                  3.15     Ordinary Course of Business...........................................................12
                  3.16     Material and Adverse Restrictions.....................................................13
                  3.17     Solvency..............................................................................13
                  3.18     Environmental Matters.................................................................13

ARTICLE 4  REPRESENTATIONS AND WARRANTIES OF ATS.................................................................14

                  4.1      Organization and Business; Power and Authority; Effect of Transaction.................14
                  4.2      Broker or Finder......................................................................14
                  4.3      No Legal Action.......................................................................14

ARTICLE 5  COVENANTS.............................................................................................15

                  5.1      Access to Information; Confidentiality................................................15
                  5.2      Agreement to Cooperate.  .............................................................16
                  5.3      Public Announcements..................................................................16
                  5.4      Notification of Certain Matters.......................................................17
                  5.5      No Solicitation.......................................................................17
                  5.6      Conduct of Business by Seller Pending the Closing.....................................17

                                       

<PAGE>



                  5.7      Preliminary Title Reports.............................................................18
                  5.8      Environmental Site Assessments........................................................19
                  5.9      Resolution of Title and Environmental Disapproved Matters.............................20
                  5.10     Post-Closing Covenants and Agreements of the Parties..................................21

ARTICLE 6  CLOSING CONDITIONS....................................................................................21

                  6.1      Conditions to Obligations of Each Party...............................................21
                  6.2      Conditions to Obligations of ATS......................................................22
                  6.3      Conditions to Obligations of Seller...................................................23

ARTICLE 7  TERMINATION, AMENDMENT AND WAIVER.....................................................................25

                  7.1      Termination...........................................................................25
                  7.2      Effect of Termination.................................................................25

ARTICLE 8  INDEMNIFICATION.......................................................................................26

                  8.1      Survival..............................................................................26
                  8.2      Indemnification.......................................................................26
                  8.3      Limitation of Liability...............................................................27
                  8.4      Notice of Claims......................................................................27
                  8.5      Defense of Third Party Claims.........................................................27
                  8.6      Exclusive Remedy......................................................................28

ARTICLE 9  GENERAL PROVISIONS....................................................................................28

                  9.1      Amendment.............................................................................28
                  9.2      Waiver................................................................................28
                  9.3      Fees, Expenses and Other Payments.....................................................28
                  9.4      Notices...............................................................................28
                  9.5      Specific Performance; Other Rights and Remedies.......................................29
                  9.6      Severability..........................................................................29
                  9.7      Counterparts..........................................................................30
                  9.8      Section Headings......................................................................30
                  9.9      Governing Law.........................................................................30
                  9.10     Further Acts..........................................................................30
                  9.11     Entire Agreement......................................................................30
                  9.12     Assignment............................................................................30
                  9.13     Parties in Interest...................................................................30
                  9.14     Mutual Drafting.......................................................................30
</TABLE>

APPENDIX A:                Definitions

SCHEDULES:

         Seller Disclosure Schedule


                                      -ii-

<PAGE>



EXHIBITS:

         EXHIBIT A   Form of Noncompetition Agreement (Section 6.2(j)) 
         EXHIBIT B-1 Forms of Master Lease and Sublease  (Section 6.2(l)) 
         EXHBIT B-2 Form of License Agreement (section 6.2(l))




                                      -iii-

<PAGE>




                            ASSET PURCHASE AGREEMENT

         This Asset Purchase Agreement (this "Agreement") is dated as of July 8,
1997 by and  between  American  Tower  Systems,  Inc.,  a  Delaware  corporation
("ATS"), and Suburban Cable TV Co. Inc., a Pennsylvania corporation ("Seller").

         WHEREAS,  Seller, through its Seller Subsidiaries,  owns and leases and
operates  communication  towers  and is engaged in the  businesses  of  managing
communication  sites for third  parties,  domestic and  international  satellite
transmission,   and  transmitting  non-residential  third  party  point-to-point
microwave video and data signals (collectively, the "Seller Business"); and

         WHEREAS,  ATS desires to purchase  and Seller  desires to sell,  and to
cause the Seller Subsidiaries to sell, the Seller Assets and the Seller Business
on the terms and conditions hereinafter set forth;

         NOW,  THEREFORE,  in  consideration  of  the  above  premises  and  the
covenants and agreements contained herein, the parties,  intending to be legally
bound, do hereby covenant and agree as follows:


                                    ARTICLE 1

                                  DEFINED TERMS

         As used herein, unless the context otherwise requires,  the capitalized
terms  defined  in  Appendix  A shall  have the  respective  meanings  set forth
therein. Terms defined in the singular shall have a comparable meaning when used
in the plural,  and vice versa,  and the reference to any gender shall be deemed
to include  all  genders.  Unless  otherwise  defined or the  context  otherwise
clearly requires,  terms for which meanings are provided in this Agreement shall
have  such  meanings  when  used in the  Seller  Disclosure  Schedule  and  each
Collateral  Document  executed or required  to be  executed  pursuant  hereto or
thereto or otherwise  delivered,  from time to time, pursuant hereto or thereto.
References  to "hereof",  "herein" or similar terms are intended to refer to the
Agreement  as a whole and not a  particular  Section,  and  references  to "this
Section"  are  intended  to refer to the  entire  Section  and not a  particular
subsection thereof.  The term "either party" shall, unless the context otherwise
requires, refer to Seller and ATS.


                                    ARTICLE 2

                           SALE AND PURCHASE OF ASSETS

         2.1 Agreement to Sell and Buy.  Subject to the terms and conditions set
forth in this  Agreement,  Seller  hereby agrees to sell,  assign,  transfer and
deliver,  and to cause the Seller  Subsidiaries  to sell,  assign,  transfer and
deliver, to ATS at the Closing,  and ATS agrees to purchase at the Closing,  the
Seller Assets and the Seller Business, free and clear of any Liens of any nature
whatsoever except for Permitted Liens. For purposes of this Agreement,  the term
"Seller  Assets"  shall  mean  all  of the  Assets  of  Seller  and  the  Seller
Subsidiaries,  other than the Excluded  Assets.  For purposes of this Agreement,
the term "Excluded Assets" shall mean the following Assets:

                  (i)  all cash and cash equivalents;

                  (ii)  all Accounts Receivable;

                                                     


<PAGE>




                  (iii)  all  books  and  records  which  Seller  or any  Seller
         Subsidiary  is required  by  Applicable  Law to retain,  subject to the
         right of ATS to have access and to copy for a period of three (3) years
         from the Closing  Date;  the records  described  herein  shall  further
         include  without  limitation  all  corporate  seals,   certificates  of
         incorporation,  minute books, stock books, Tax Returns or other records
         having to do with the corporate  organization  of Seller and the Seller
         Subsidiaries;

                  (iv) any pension,  profit-sharing  or employee  benefit plans,
         including any assets in any related trusts;

                  (v)  the   personal   assets  of  the   officers,   directors,
         shareholders  and  employees  of  Seller  and the  Seller  Subsidiaries
         described in Section 2.1 of the Seller Disclosure Schedule;

                  (vi)  the  assets  set  forth  in  Section  2.1 of the  Seller
         Disclosure Schedule; and

                  (vii) any and all  products,  profits  and  proceeds  of,  and
         including  without  limitation  any Claims with  respect to, any of the
         foregoing.

         2.2      Assumption of Liabilities and Obligations.

         (a) At the Closing,  ATS shall assume and agree to pay,  discharge  and
perform the following  obligations  and liabilities  (collectively,  the "Seller
Assumed Obligations"):  (i) all of the obligations and liabilities of Seller and
the Seller  Subsidiaries  under the Seller  Assumable  Agreements,  and (ii) all
obligations and liabilities of Seller and the Seller  Subsidiaries  with respect
to the  ownership  and  operation  of the Seller  Assets and the  conduct of the
Seller  Business,  on and  after  the  Closing  Date;  provided,  however,  that
notwithstanding the foregoing,  ATS shall not assume and agree to pay, and shall
not be obligated with respect to, the Seller Nonassumed Obligations.

         (b) ATS shall  not  assume or become  obligated  to  perform  any debt,
liability or obligation of Seller or any of its Subsidiaries  relating to any of
the following matters (collectively, the "Seller Nonassumed Obligations"):

                  (i) the  ownership or  operation  of the Seller  Assets or the
         conduct of the Seller  Business  prior to the Closing  Date,  including
         without  limitation  Taxes,  unfunded  pension  costs,  any  Employment
         Arrangement  (including without limitation any obligation to any Seller
         Employee for severance benefits,  vacation time or sick leave), and any
         of the following to the extent same arise from Events  occurring  prior
         to the Closing Date: products liability, Legal Actions or other Claims,
         and obligations and liabilities relating to Environmental Law;

                  (ii) any obligations or liabilities under the Seller Assumable
         Agreements relating to the period prior to the Closing Date;

                  (iii) any  insurance  policies  of Seller or any of the Seller
         Subsidiaries;

                  (iv) those  required to be disclosed in the Seller  Disclosure
         Schedule  which are not so disclosed or which,  if  disclosed,  Section
         2.2(b)(iv)  of the  Seller  Disclosure  Schedule  indicates  that  such
         obligation or liability will not be assumed;


                                       -2-


<PAGE>



                  (v) any liability or obligation  from or relating to breach of
         any warranty or any misrepresentation by Seller under this Agreement or
         of  Seller  or any of the  Seller  Subsidiaries  under  any  Collateral
         Document;

                  (vi) any liability or obligation from or relating to breach or
         violation of, or failure to perform, any of the obligations, covenants,
         agreements or  undertakings of Seller set forth in this Agreement or of
         Seller or any of the Seller  Subsidiaries  set forth in any  Collateral
         Document, including without limitation Article 5 of this Agreement;

                  (vii) any  obligation  or  liability  relating to any Excluded
         Asset;

                  (viii) any obligation or liability with respect to capitalized
         lease obligations  (except as otherwise  provided in this Agreement) or
         Indebtedness for Money Borrowed;

                  (ix) any Taxes, fees, expenses or other amounts required to be
         paid  pursuant to the  provisions of this  Agreement or any  Collateral
         Document by Seller or any of the Seller Subsidiaries; and

                  (x) any Contract  between or among Seller and any Affiliate of
         Seller,  other than those,  if any, set forth in Section 2(b)(x) of the
         Seller Disclosure Schedule.

All  Seller  Nonassumed  Obligations  shall  remain and be the  obligations  and
liabilities solely of Seller.

         (c)  Anything in this  Section or  elsewhere  in this  Agreement to the
contrary  notwithstanding,  the term "Seller  Nonassumed  Obligations" shall not
include,  and the term "Seller Assumed Obligations" shall include, any liability
arising out of the transfer or  assignment to ATS of, or the use or enjoyment of
the benefits by ATS under, any Contract,  Governmental  Authorization or Private
Authorization  the transfer or assignment of which  (according to Section 2.2(c)
of the Seller  Disclosure  Schedule)  requires  the consent of any  Authority or
other Person (collectively,  the "Nonassignable  Contracts"),  if ATS has, on or
prior to the Closing Date,  notified Seller in writing (an "Acceptance  Notice")
that ATS consents to the transfer or assignment of such  Nonassignable  Contract
despite the  failure or  inability  of ATS and Seller to obtain the  approval or
consent of an Authority  or other  Person whose  approval or consent is required
pursuant to the terms of such Nonassignable  Contract,  or elects to receive the
benefits  of such  Nonassumable  Contract,  in  either of which  events,  if the
approval or consent of an Authority or other  Person  applicable  to transfer of
such  Nonassignable  Contract is required to be obtained as a condition  to ATS'
obligations  at Closing  pursuant to the provisions of Section 6.1(a) or 6.2(d),
ATS  shall  be  deemed  to have  waived  such  condition  with  respect  to such
Nonassignable Contract. With respect to any Nonassignable Contract for which the
applicable consent of any Authority or other Person is not obtained prior to the
Termination Date and for which ATS does not timely deliver an Acceptance  Notice
as  described  in the  preceding  sentence,  Seller and ATS shall  enter into an
agreement  (the  "Nonassignable  Contracts  Agreement"),  pursuant  to which (i)
Seller  or the  applicable  Seller  Subsidiary  will  hold  and,  to the  extent
hereinafter  provided,  perform services  thereunder for the account of ATS, and
remit promptly to ATS all amounts received pursuant to the provisions of, all of
the Nonassignable  Contracts as to which the required approval or consent to the
assignment  or  transfer of which was not  obtained  and as to which ATS has not
delivered an Acceptance Notice,  and (ii) ATS will agree to (A) perform,  to the
extent  the same  would  not  constitute  a  breach  thereof  or a  constructive
assignment  thereof  without  consent (in which event Seller and the  applicable
Seller  Subsidiary  shall  continue to  perform),  all  services  required to be
performed  under  such  Nonassignable  Contracts,  (B)  reimburse  Seller or the
applicable  Seller  Subsidiary  for all costs and expenses  reasonably  incurred
pursuant to the  Nonassignable  Contracts  Agreement  and (C) indemnify and hold
harmless Seller and the applicable Seller Subsidiary with respect to all actions
taken by ATS thereto and all actions,  if any, taken by Seller or the applicable
Seller

                                       -3-


<PAGE>



Subsidiary  pursuant  thereto other than those relating to the bad faith,  gross
negligence or willful  misconduct of Seller or the applicable  Seller Subsidiary
or its officers, directors, stockholders or employees.

         (d)  Notwithstanding  anything  contained  in  this  Agreement  to  the
contrary,  except  as set  forth in  Section  2.2(d)  of the  Seller  Disclosure
Schedule,  all items of income and expense  (including  without  limitation with
respect to rent,  utility  charges,  Pro Ratable  Taxes and wages,  salaries and
accrued but unused vacation of Seller  employees)  arising from the ownership or
operation of the Seller  Assets or the conduct of the Seller  Business  shall be
prorated as of 12:01  a.m.,  Eastern  time,  on the  Closing  Date,  with Seller
entitled to and  responsible  for any such items on or prior to the Closing Date
and  ATS  entitled  to and  responsible  for  any  such  items  relating  to any
subsequent  period.  For these  purposes,  Pro Ratable Taxes  attributable  to a
period that begins  before and ends after the Closing Date shall be treated on a
"closing of the books" basis as two partial periods,  one ending at the close of
the Closing  Date and the other  beginning  on the day after the  Closing  Date,
except that Pro Ratable  Taxes  (such as property  Taxes)  imposed on a periodic
basis shall be allocated on a daily basis.  If either party shall have  received
any such  revenues or paid any such expenses or charges  which,  pursuant to the
terms  hereof,  the other  party is  entitled  to or  responsible  for, it shall
furnish the other party with a detailed  statement  of any such items as soon as
practicable  after receipt or payment thereof.  The parties shall use their best
efforts to agree upon such items and other adjustments prior to the Closing Date
and,  in any  event,  except  as set  forth  in  Section  2.2(c)  of the  Seller
Disclosure  Schedule,  within  sixty (60) days  thereafter.  If the  parties are
unable within such period to agree upon such items and other adjustments, Seller
and ATS  shall,  within  the  following  ten (10)  days,  jointly  designate  an
independent public accounting firm to be retained to review such items and other
adjustments.  The fees and other expenses of retaining such  independent  public
accounting firm shall be borne equally by Seller and ATS. Such firm shall report
its conclusions as to such items and other adjustments  pursuant to this Section
and such report shall be  conclusive  on all parties to this  Agreement  and not
subject to  dispute or review.  Upon such  agreement  or  determination  by such
independent  accounting firm,  Seller or ATS, as the case may be, shall promptly
and, in any event,  within five (5) business days  reimburse the other party for
any income  received  or  expenses  paid by the other  party and not  previously
reimbursed or any other adjustment required by this Section.

         Nothing contained in this Section 2.2(d) is intended or shall be deemed
to amend or modify the indemnification provisions of Article 8 nor to reallocate
responsibility for the matters set forth therein.

         2.3  Closing;  Purchase  Price.  The closing of the  Transactions  (the
"Closing") shall take place at Saul,  Ewing,  Remick & Saul, 3800 Central Square
West, Philadelphia,  Pennsylvania 19102, at 10:00 a.m., local time, on the later
of (a)  October  31,  1997 and (b) the  first  business  day after ten (10) days
following the date all authorizations,  consents,  waivers, orders and approvals
(and,  in the case of Section  6.2(d),  modifications)  required  to be obtained
pursuant to the provisions of Section  6.1(a) and 6.2(d) have been obtained,  or
such other date,  prior to the  Termination  Date, as the parties may agree (the
"Closing Date"). At the Closing, each of the parties shall deliver such warranty
deeds,  bills of sale,  assignments,  assumptions of  liabilities,  opinions and
other  instruments and documents as are described in this Agreement or as may be
otherwise  reasonably requested by the parties and their respective counsel. The
purchase  price for the Seller  Assets and the Seller  Business  (the  "Purchase
Price")  shall be an amount  equal to  $70,250,000,  subject  to  adjustment  as
provided in Section  2.2(d) plus an amount  equal to the  Prepaid  Expenses  and
minus an amount equal to the sum of (a) the Seller  Nonassumed  Obligations,  if
any, which ATS agrees to assume,  and (b) Prepaid  Revenues.  The Purchase Price
shall be payable by wire transfer of immediately  available  funds to Seller for
the balance of the Purchase  Price to such account (or accounts) as Seller shall
designate  in  written  instructions  to ATS  delivered  not later  than two (2)
business days prior to the Closing.

         The parties agree that BIA Consulting,  Inc. shall promptly conduct and
prior to the Closing  complete an appraisal of the Seller  Assets which shall be
the basis for an allocation schedule (the "Tax Allocation Schedule") pursuant to
which the Purchase  Price shall be allocated  among the Seller  Assets.  Each of
Seller

                                       -4-


<PAGE>



and ATS shall report the  purchase and sale of the Seller  Assets and the Seller
Business  and the  other  Transactions  in  accordance  with the Tax  Allocation
Schedule for purposes of all federal,  state and local Tax Returns and shall not
take, and shall cause their respective Affiliates,  representatives,  successors
and assigns not to take, any position on any federal,  state or local Tax Return
or report,  inconsistent  with such reporting  position.  Each of Seller and ATS
shall promptly give the other notice of any disallowance of or challenge to such
reporting  by any  Taxing  Authority.  Notwithstanding  the  provisions  of this
Section, the parties to this Agreement will rely solely on their own advisors in
determining  the  tax  consequences  of the  transactions  contemplated  by this
Agreement   and  each  party  is  not  relying,   and  will  not  rely,  on  any
representations  or assurances of any other party  regarding  such  consequences
other than the representations,  warranties,  covenants and agreements set forth
in writing in this Agreement or furnished pursuant to the provisions hereof.

         2.4 Accounts  Receivable.  At the closing,  Seller and its Subsidiaries
shall  appoint  ATS its  agent  for  the  purpose  of  collecting  all  Accounts
Receivable  relating to the Seller Business (the "Seller Accounts  Receivable").
Seller shall deliver to ATS on or as soon as practicable  after the Closing Date
a complete  and  detailed  statement  showing  the name,  amount and age of each
Accounts Receivable.  Subject to and limited by the following, revenues relating
to the  Seller  Accounts  Receivable  will be for the  account of Seller and the
Seller Subsidiaries. ATS shall use the same procedures and efforts which it uses
with  respect to its own  accounts  receivable  to collect  the Seller  Accounts
Receivable  for a period of one hundred twenty (120) days after the Closing Date
(the  "Collection  Period").  Any payment  received by ATS during the Collection
Period from any customer with an account which is a Seller  Accounts  Receivable
shall first be applied in reduction of the Seller  Accounts  Receivable,  unless
the customer  contests the validity of such  application.  During the Collection
Period,  ATS shall  furnish  Seller with a list of, and pay over to Seller,  the
amounts  collected with respect to the Seller  Accounts  Receivable on a monthly
basis and forward to Seller,  promptly upon receipt or delivery, as the case may
be, copies of all correspondence relating to the Seller Accounts Receivable. ATS
shall provide Seller with a final  accounting on or before the fifteenth  (15th)
day following the end of the Collection Period. Upon the request of either party
at and after such time,  the parties  shall meet to  mutually  and in good faith
analyze any uncollected Seller Accounts  Receivable to determine if the same, in
their  reasonable  business  judgment,  are deemed to be collectable  and if ATS
desires  to retain  such  Seller  Accounts  Receivable.  As to each such  Seller
Accounts  Receivable,  the  parties  shall  negotiate a good faith value of such
Seller  Accounts  Receivable,  which ATS shall pay to Seller if ATS, in its sole
discretion,  chooses to retain such Seller  Accounts  Receivable.  Seller  shall
retain the right to collect any of the Seller  Accounts  Receivable  as to which
the  parties are unable to reach  agreement  as to a good faith  value,  and ATS
agrees to turn over to Seller any  payments  received  against  any such  Seller
Accounts Receivable. ATS shall not be obligated to use any extraordinary efforts
to collect any of the Seller Accounts  Receivable  assigned to it for collection
hereunder  or to refer any of such Seller  Accounts  Receivable  to a collection
agency  or to any  attorney  for  collection,  and ATS  shall  not make any such
referral  or  compromise,  nor settle or adjust  the  amount of any such  Seller
Accounts Receivable, except with the approval of Seller. ATS shall not incur any
liability  to  Seller  or any of the  Seller  Subsidiaries  for any  uncollected
account unless ATS shall have engaged in willful  misconduct or gross negligence
in the  performance  of its  obligations  set forth in this Section.  During and
after  the  Collection  Period,  without  specific  agreement  with  ATS  to the
contrary,  neither  Seller nor any of its  Subsidiaries  nor any of its or their
agents shall make any direct  solicitation of the Seller Accounts Receivable for
collection  purposes,  except for the Seller  Accounts  Receivable  retained  by
Seller or any of the Seller Subsidiaries after the Collection Period.



                                       -5-


<PAGE>



                                    ARTICLE 3

                    REPRESENTATIONS AND WARRANTIES OF SELLER

         Seller hereby  represents,  warrants and covenants to, and agrees with,
ATS as follows:

         3.1  Organization  and  Business;   Power  and  Authority;   Effect  of
Transaction.

         (a) Seller and each Seller  Subsidiary is a corporation  or partnership
duly  organized,  validly  existing and in good  standing  under the laws of its
jurisdiction of organization,  has all requisite power and authority (corporate,
partnership  and other) to own or hold under lease its properties and to conduct
its business as now conducted.

         (b) Seller and each Seller  Subsidiary  has all requisite  corporate or
partnership,  power  and  authority  and  has  in  full  force  and  effect  all
Governmental  Authorizations  and Private  Authorizations,  except for those set
forth in Section 3.1(b) of the Seller  Disclosure  Schedule or those the failure
of which to obtain do not and will not have,  individually  or in the aggregate,
any material  Adverse  effect on Seller or any Seller  Subsidiary,  necessary to
enable it to execute and deliver,  and to perform its  obligations  under,  this
Agreement and each Collateral Document executed or required to be executed by it
pursuant hereto or thereto or to consummate the Transactions; and the execution,
delivery and performance of this Agreement and each Collateral Document executed
or required to be executed by it and each Seller  Subsidiary  pursuant hereto or
thereto have been duly  authorized by all requisite  corporate,  partnership  or
other action on the part of Seller and each Seller  Subsidiary.  This  Agreement
has been duly  executed and delivered by Seller and each Seller  Subsidiary  and
constitutes, and each Collateral Document executed or required to be executed by
it pursuant  hereto or thereto or to consummate the  Transactions  when executed
and delivered by Seller and each Seller Subsidiary will constitute, legal, valid
and binding  obligations  of Seller and each Seller  Subsidiary,  enforceable in
accordance with their respective  terms,  except as such  enforceability  may be
limited by  bankruptcy,  moratorium,  insolvency  and similar laws affecting the
rights and remedies of creditors  and  obligations  of debtors  generally and by
general principles of equity.

         (c)  Except as set forth in  Section  3.1(c) of the  Seller  Disclosure
Schedule,  and except for matters which would have no material Adverse effect on
Seller or any Seller  Subsidiary,  neither the  execution and delivery by Seller
and each Seller Subsidiary of this Agreement or any Collateral Document executed
or  required  to  be  executed  by  it  pursuant  hereto  or  thereto,  nor  the
consummation  by Seller and each  Seller  Subsidiary  of the  Transactions,  nor
compliance with the terms, conditions and provisions hereof or thereof by Seller
and each Seller Subsidiary:

                  (i) will conflict with, or result in a breach or violation of,
         or constitute a default  under,  any Organic  Document of Seller or any
         Seller  Subsidiary or any  Applicable  Law, or will  conflict  with, or
         result in a breach or violation of, or constitute a default  under,  or
         permit the  acceleration  of any obligation or liability in, or but for
         any  requirement  of giving of notice or  passage of time or both would
         constitute  such a conflict  with,  breach or violation  of, or default
         under, or permit any such  acceleration in, any Contractual  Obligation
         of Seller or any  Seller  Subsidiary,  other  than  those  constituting
         Seller Nonassumed Obligations; or

                  (ii) will  require  Seller to make or obtain any  Governmental
         Authorization,  Governmental Filing or Private Authorization  including
         without  limitation  under  the  FCA,  except  for  filings  under  the
         Hart-Scott-Rodino  Act and the filings  described in Section  3.1(c) of
         the Seller Disclosure Schedule.


                                       -6-


<PAGE>




         (d) Seller and the Seller  Subsidiaries  are the only Persons which own
or have  owned any  interest  in any of the  Seller  Assets or any aspect of the
Seller  Business  other  than  those set forth on  Section  3.1(d) of the Seller
Disclosure Schedule.

         3.2 Financial and Other Information..  Seller has heretofore  furnished
to ATS  copies of the  financial  statements  of the Seller  Business  listed in
Section  3.2  of  the  Seller   Disclosure   Schedule  (the  "Seller   Financial
Statements"). The Seller Financial Statements,  including in each case the notes
thereto,  have been  prepared in  accordance  with GAAP  applied on a consistent
basis throughout the periods covered thereby,  except as otherwise noted therein
or as set forth in Section  3.2 of the  Seller  Disclosure  Schedule,  are true,
accurate  and  complete  in all  material  respects,  do not  contain any untrue
statement of a material  fact or omit to state a material  fact required by GAAP
to be stated  therein or  necessary  in order to make the  statements  contained
therein not  misleading,  and fairly  present the  financial  condition  and the
results of operations and cash flow of the Seller Business, on the bases therein
stated,  as of the  respective  dates thereof,  and for the  respective  periods
covered  thereby  subject,  in the case of unaudited  financial  statements,  to
normal nonmaterial year-end audit adjustments and accruals.

         3.3 Changes in Condition.  Since the date of the most recent  financial
statements constituting a part of the Seller Financial Statements, except to the
extent specifically  described in Section 3.3 of the Seller Disclosure Schedule,
there has been no material  Adverse  change in Seller or any Seller  Subsidiary.
There is no Event known to Seller which materially Adversely affects, or (so far
as Seller can now reasonably foresee) is likely to materially  Adversely affect,
Seller or any Seller Subsidiary,  except to the extent specifically described in
Section 3.3 of the Seller Disclosure Schedule.

         3.4   Materiality.    The   individual   materiality   exceptions   and
qualifications  contained herein or in the Seller Disclosure Schedules do not in
the aggregate, in the reasonable business judgment of Seller, prevent the Seller
Business from operating in the ordinary course or, in the aggregate,  Materially
Adversely  Affect the value of Seller Assets or the Seller Business in the hands
of ATS.

         3.5      Title to Properties; Leases.

         (a) Section 3.5(a) of the Seller  Disclosure  Schedule contains a true,
accurate and complete  list of all real  property  owned by Seller or any Seller
Subsidiary  that is part of the Seller Assets.  Seller or the applicable  Seller
Subsidiary, as the case may be, has good indefeasible,  marketable and insurable
title to all real property  (other than  leasehold  real  property) and good and
merchantable title to all other assets (other than real property),  tangible and
intangible,  constituting  a part of the  Seller  Assets,  in each case free and
clear of all Liens,  except (i) Permitted Liens, (ii) Liens set forth on Section
3.5(a) of the Seller  Disclosure  Schedule and (iii) Approved Title  Conditions.
Except for financing  statements  evidencing  Liens referred to in the preceding
sentence (a true,  accurate and  complete  list of which is set forth in Section
3.5(a) of the Seller Disclosure Schedule),  to Seller's knowledge,  no financing
statements  under the Uniform  Commercial  Code and no other  filing which names
Seller or any Seller  Subsidiary  as debtor or which covers or purports to cover
any of the  Seller  Assets  is on file in any state or other  jurisdiction,  and
neither  Seller nor any Seller  Subsidiary has signed or agreed to sign any such
financing  statement or filing or any  agreement  authorizing  any secured party
thereunder  to  file  any  such  financing  statement  or  filing.  To  Seller's
knowledge,  except as  disclosed  in  Section  3.5(a) of the  Seller  Disclosure
Schedule,  all  improvements  on the real property owned or leased by Seller and
the Seller  Subsidiaries  and  constituting  a part of the Seller  Assets are in
compliance with applicable  zoning,  wetlands and land use laws,  ordinances and
regulations  and  applicable  title  covenants,  conditions,   restrictions  and
reservations  in all respects  necessary to conduct the  operations as presently
conducted,  except for any instances of non-compliance which do not and will not
in the aggregate have a material  Adverse effect on the owner or lessee,  as the
case may be, of such real property. To Seller's

                                       -7-


<PAGE>



knowledge,  except as  disclosed  in  Section  3.5(a) of the  Seller  Disclosure
Statement,  all  such  improvements  comply  in all  material  aspects  with all
Applicable Laws,  Governmental  Authorizations  and Private  Authorizations.  To
Seller's  knowledge,  except  as  disclosed  in  Section  3.5(a)  of the  Seller
Disclosure  Statement,  all of the  transmitting  towers,  ground  radials,  guy
anchors,  transmitting  buildings and related  improvements  located on the real
property owned or leased by Seller and the Seller  Subsidiaries and constituting
a part of the Seller  Assets are  located  entirely  on such real  property.  To
Seller's  knowledge,  there is no pending,  threatened or contemplated action to
take by eminent  domain or  otherwise  to condemn any part of any real  property
owned or leased by Seller and the Seller Subsidiaries and constituting a part of
the  Seller  Assets.  Except  as set  forth  in  Section  3.5(a)  of the  Seller
Disclosure  Schedule,  such real  property  (other than land),  fixtures,  fixed
assets and other material items of personal property, including equipment, have,
in Seller's reasonable business judgment, been maintained in a manner consistent
with sound  engineering  practice and currently permit the Seller Business to be
operated in all material respects in accordance with the terms and conditions of
all Applicable Laws, Governmental Authorizations and Private Authorizations.

         (b) Section 3.5(b) of the Seller  Disclosure  Schedule contains a true,
accurate and complete  list of all Leases under which any real  property used in
the Seller Business is leased.  Except as otherwise set forth in Schedule 3.5(b)
of the  Seller  Disclosure  Schedule,  each  Lease or other  occupancy  or other
agreement under which Seller and each Seller  Subsidiary  holds real or personal
property  constituting  a part of the Seller  Assets  has been duly  authorized,
executed  and  delivered by Seller and each Seller  Subsidiary  and, to Seller's
knowledge,  each of the other parties thereto, and is a legal, valid and binding
obligation  of Seller and each Seller  Subsidiary,  and, to Seller's  knowledge,
each of the other parties  thereto,  enforceable  in accordance  with its terms,
except  as  such  enforceability  may  be  limited  by  bankruptcy,  moratorium,
insolvency  and similar laws  affecting the rights and remedies of creditors and
obligations  of debtors  generally  and by  general  principles  of  equity.  To
Seller's knowledge,  Seller or the applicable Seller Subsidiary, as the case may
be, has a valid  leasehold  interest  in and  enjoys  peaceful  and  undisturbed
possession under all Leases pursuant to which it holds any such real property or
tangible personal property. To Seller's knowledge,  all of such Leases are valid
and  subsisting  and in full force and effect;  neither Seller or the applicable
Seller  Subsidiary,  as the case may be, nor, to Seller's  knowledge,  any other
party  thereto,  is in  material  default  in  the  performance,  observance  or
fulfillment  of any  obligation,  covenant or  condition  contained  in any such
Lease.  None of the fixed  assets or  equipment  comprising a part of the Seller
Assets is subject to contracts of sale, and none is held by Seller or any Seller
Subsidiary  as  lessee  or as  conditional  sales  vendee  under  any  Lease  or
conditional sales contract and none is subject to any title retention agreement,
except as set forth in Section 3.5(b) of the Seller Disclosure Schedule.

         (c) Section 3.5(c) of the Seller  Disclosure  Schedule contains a true,
accurate and complete list of all material  items of Seller  Personal  Property.
Seller or the  applicable  Seller  Subsidiary,  as the case may be, owns and has
good and  merchantable  title to all of the  Personal  Property  relating to the
Seller Business (the "Seller Personal  Property"),  in each case, free and clear
of all  Liens,  except (i)  Permitted  Liens and (ii) Liens set forth on Section
3.5(c) of the Seller Disclosure Schedule (which Liens shall be released prior to
Closing).  Except  as set  forth in  Section  3.5(c)  of the  Seller  Disclosure
Schedule,  all of the Seller Personal  Property is in operating  condition,  has
been maintained in a manner consistent with good engineering practice, does not,
to Seller's  knowledge,  require any material  amount of repair,  maintenance or
replacement  and  currently  permits  the  Seller  Business  to be  operated  in
accordance  with the terms and  conditions of all  Applicable  Laws.  The Seller
Personal Property is being sold in "as is" condition.

         3.6 Compliance with Private  Authorizations.  Section 3.6 of the Seller
Disclosure  Schedule  sets  forth a true,  accurate  and  complete  list of each
Private Authorization which individually is material to the Seller Assets or the
Seller Business.  To Seller's  knowledge,  Seller and each Seller Subsidiary has
obtained all Private  Authorizations  which are  necessary  for the ownership or
operation of the Seller Assets or the conduct of the Seller  Business  which, if
not obtained and maintained, could, individually or in the aggregate,

                                       -8-


<PAGE>



materially  Adversely  affect  Seller  or any  Seller  Subsidiary.  To  Seller's
knowledge, All of such Private Authorizations are valid and in good standing and
are in full  force and  effect.  None of Seller or any Seller  Subsidiary  is in
breach  or  violation  of,  or in  default  in the  performance,  observance  or
fulfillment  of,  any such  Private  Authorization,  and no Event  exists or has
occurred,  which constitutes,  or but for any requirement of giving of notice or
passage of time or both would constitute,  such a breach,  violation or default,
under any such  Private  Authorization,  except for such  defaults,  breaches or
violations  as do not and will not have in the  aggregate  any material  Adverse
effect  on Seller or any  Seller  Subsidiary.  To  Seller's  knowledge,  no such
Private  Authorization  is the  subject  of any  pending or  threatened  attack,
revocation or termination.

         3.7 Compliance with Governmental Authorizations and Applicable Law.

         (a) Section 3.7(a) of the Seller  Disclosure  Schedule contains a true,
complete and  accurate  list of each  Governmental  Authorization  required,  to
Seller's  knowledge,  under  Applicable  Laws (i) to own and  operate the Seller
Business,  as currently conducted or proposed to be conducted on or prior to the
Closing  Date,  all of  which  are in full  force  and  effect  or (ii)  that is
necessary to permit Seller to execute and deliver this  Agreement and to perform
its obligations  hereunder.  Except as set forth in Section 3.7(a) of the Seller
Disclosure  Schedule,  to Seller's knowledge,  Seller and each Seller Subsidiary
has  obtained  all  Governmental  Authorizations  which  are  necessary  for the
ownership  or  operation  of the  Seller  Assets or the  conduct  of the  Seller
Business as now  conducted  and which,  if not obtained and  maintained,  would,
individually or in the aggregate,  have any material Adverse effect on Seller or
any  Seller  Subsidiary.   To  Seller's  knowledge,  none  of  the  Governmental
Authorizations  listed in Section  3.7(a) of the Seller  Disclosure  Schedule is
subject to any  restriction  or  condition  which  would  limit in any  material
respect the  ownership or  operations of the Seller Assets or the conduct of the
Seller Business as currently  conducted,  except for restrictions and conditions
generally  applicable to Governmental  Authorizations  of such type. To Seller's
knowledge,  except  as set forth in  Section  3.7(a)  of the  Seller  Disclosure
Schedule, the Governmental Authorizations listed in Section 3.7(a) of the Seller
Disclosure Schedule are valid and in good standing, are in full force and effect
and are not impaired in any  material  respect by any act or omission of Seller,
the  Seller  Subsidiaries  or  any  of  their  respective  officers,  directors,
employees or agents,  and the ownership or operation of the Seller Assets or the
conduct of the Seller  Business are in accordance in all material  respects with
the Governmental  Authorizations.  To Seller's knowledge,  all material reports,
forms and statements  required to be filed by Seller and each Seller  Subsidiary
with all Authorities with respect to the Seller Business have been filed and are
true, complete and accurate in all material respects. To Seller's knowledge,  no
such  Governmental  Authorization  is the subject of any  pending or  threatened
challenge  or  proceeding   to  revoke  or  terminate   any  such   Governmental
Authorization.  Seller  has no  reason  to  believe  that any such  Governmental
Authorization  would not be  renewed  in the name of  Seller  or the  applicable
Seller Subsidiary by the granting Authority in the ordinary course.

         (b) Except as otherwise specifically described in Section 3.7(b) of the
Seller  Disclosure  Schedule,  none of  Seller,  any Seller  Subsidiary  nor any
director or officer  thereof (in  connection  with ownership or operation of the
Seller Assets or the conduct of the Seller  Business) is in or is charged by any
Authority with or, to Seller's knowledge,  at any time since January 1, 1996 has
been in or has been charged by any Authority with, or, to Seller's knowledge, is
threatened or under  investigation  by any Authority  with respect to, breach or
violation of, or default in the  performance,  observance or fulfillment of, any
Governmental  Authorization  or any Applicable Law relating to the ownership and
operation  of the  Seller  Assets or the  conduct  of the  Seller  Business.  In
particular,  but without  limiting the generality of the foregoing,  to Seller's
knowledge,  there are no  applications,  complaints or Legal Actions  pending or
threatened before or by any Authority (x) relating to the ownership or operation
of the Seller Assets or the conduct of the Seller Business  which,  individually
or in the  aggregate,  are  reasonably  likely to result  in the  revocation  or
termination  of  any  Governmental   Authorization  or  the  imposition  of  any
restriction  of such a  nature  as  would  Adversely  affect  the  ownership  or
operation of the Seller Assets or the conduct of the Seller

                                       -9-


<PAGE>



Business;  (y)  involving  charges  of illegal  discrimination  by Seller or any
Seller Subsidiary under any federal or state employment Laws with respect to any
of the Seller  Employees,  or (z) involving  Environmental  Laws or zoning laws,
except as  otherwise  specifically  described  in  Section  3.7(b) of the Seller
Disclosure Schedule.

         (c) Except as otherwise specifically described in Section 3.7(c) of the
Seller  Disclosure  Schedule,  to  Seller's  knowledge,  no Event  exists or has
occurred,  which constitutes,  or but for any requirement of giving of notice or
passage of time or both would constitute,  such a breach,  violation or default,
under (i) any Governmental  Authorization or any Applicable Law, except for such
breaches, violations or defaults as do not and will not have, individually or in
the aggregate, any material Adverse effect on Seller or any Seller Subsidiary or
(ii) any material  requirement of any property or liability  insurance  carrier,
applicable to the ownership or operations of the Seller Assets or the conduct of
the Seller Business.

         (d) With respect to matters, if any, of a nature referred to in Section
3.7(a), 3.7(b) or 3.7(c) of the Seller Disclosure Schedule,  except as otherwise
specifically  described in Section 3.7(d) of the Seller Disclosure Schedule, all
such  information and matters set forth in the Seller  Disclosure  Schedule,  if
Adversely  determined against Seller or the applicable Seller  Subsidiary,  will
not,  individually or in the aggregate,  have a materially  Adversely  effect on
Seller or any Seller Subsidiary.

         3.8 Intangible  Assets.  Section 3.8 of the Seller Disclosure  Schedule
sets forth a true,  accurate and complete list of all  Intangible  Assets (other
than Governmental  Authorizations  and Private  Authorizations)  relating to the
ownership  and  operation  of the  Seller  Assets or the  conduct  of the Seller
Business held or used by Seller and each Seller  Subsidiary,  including  without
limitation the nature of Seller's and each Seller Subsidiary's  interest in each
and the  extent to which the same have been duly  registered  in the  offices as
indicated therein. To Seller's knowledge,  except as set forth in Section 3.8 of
the Seller  Disclosure  Schedule,  no  Intangible  Assets  (except  Governmental
Authorizations,  Private Authorizations, and the Intangible Assets so set forth)
are required for the  ownership or operation of the Seller Assets or the conduct
of the Seller Business as currently owned, operated and conducted or proposed to
be owned,  operated and conducted on or prior to the Closing  Date.  Seller does
not, to its knowledge, wrongfully infringe upon or unlawfully use any Intangible
Assets owned or claimed by another,  and none of Seller or any Seller Subsidiary
has  received  any  notice of any  claim or  infringement  relating  to any such
Intangible Asset.

         3.9 Related Transactions.  None of Seller or any Seller Subsidiary is a
party or subject to any  Contractual  Obligation  relating to the  ownership  or
operation  of the Seller  Assets or the conduct of the Seller  Business  between
Seller or the applicable Seller  Subsidiary and any of its officers,  directors,
shareholders,  employees  or, to the  knowledge of Seller,  any Affiliate of any
thereof,  including without limitation any Contractual  Obligation providing for
the  furnishing of services to or by,  providing  for rental of property,  real,
personal or mixed,  to or from,  or  providing  for the lending or  borrowing of
money to or from or otherwise  requiring  payments to or from,  any such Person,
other than (i)  Employment  Arrangements  listed or described in Section 3.13 of
the Seller Disclosure Schedule,  (ii) Contractual  Obligations between Seller or
any  Seller  Subsidiary  and  any  of  its  directors,  shareholders,  officers,
employees or  Affiliates  of Seller or any of the  foregoing,  which  constitute
Excluded Assets or Seller Nonassumed  Obligations,  or (iii) as specifically set
forth in Section 3.9 of the Seller Disclosure Schedule.

         3.10  Insurance.  Seller and each  Seller  Subsidiary  maintains,  with
respect to the  Seller  Assets and the  Seller  Business,  policies  of fire and
extended  coverage and casualty,  liability and other forms of insurance in such
amounts  and against  such risks and losses as are set forth in Section  3.10 of
the Seller Disclosure Schedule.


                                      -10-


<PAGE>



         3.11     Tax Matters.

         (a)  Except as set forth in Section  3.11(a)  of the Seller  Disclosure
Schedule,  Seller  has in  accordance  with all  Applicable  Laws  filed all Tax
Returns and/or  extensions which are required to be filed, and has paid, or made
adequate  provision  for the  payment of, all Taxes which have or may become due
and payable pursuant to said Tax Returns and all other governmental  charges and
assessments  received  to date other than those Taxes  being  contested  in good
faith for which  adequate  provision  has been made on the most  recent  balance
sheet forming part of Seller Financial Statements. The Tax Returns of Seller and
each Seller Subsidiary have been prepared in all material respects in accordance
with all  Applicable  Laws  and  generally  accepted  principles  applicable  to
taxation consistently applied. All Taxes which Seller and each Seller Subsidiary
is  required  by law to  withhold  and  collect  have  been  duly  withheld  and
collected,  and  have  been  paid  over,  in a  timely  manner,  to  the  proper
Authorities  to the  extent  due and  payable.  Except as set  forth in  Section
3.11(a) of the Seller Disclosure  Schedule,  adequate provision has been made on
the most recent  balance sheet forming part of Seller  Financial  Statements for
all Taxes accrued through the date of such balance sheet of any kind,  including
interest and penalties in respect thereof,  whether disputed or not, and whether
past, current or deferred, accrued or unaccrued, fixed, contingent,  absolute or
other,  and,  except as set forth in Section  3.11(a)  of the Seller  Disclosure
Schedule,  there are, to Seller's  knowledge,  no past  transactions  or matters
which could result in additional  Taxes of a material  nature to Seller and each
Seller  Subsidiary  for which an adequate  reserve has not been provided on such
balance sheet.

         (b) The  information  shown on the federal income Tax Returns of Seller
and each Seller Subsidiary for each of the most recent three (3) tax years (true
and  complete  copies  of which  have,  to the  extent  requested  by ATS,  been
furnished  by Seller to ATS) is true,  accurate  and  complete  in all  material
respects  and fairly and  accurately  reflects the  information  purported to be
shown. Federal and state income Tax Returns of Seller and each Seller Subsidiary
have not been examined by the IRS or  applicable  state  Authority,  and none of
Seller or any Seller  Subsidiary has been notified of any proposed  examination,
except as shown in Section 3.11(b) of the Seller Disclosure Schedule.

         (c)  None of  Seller  or any  Seller  Subsidiary  is a party to any tax
sharing agreement or arrange ment.

         3.12  Broker or Finder.  No Person  assisted  in or  brought  about the
negotiation  of this  Agreement or the  Transactions  in the capacity of broker,
agent or finder or in any  similar  capacity  on  behalf  of Seller  other  than
Communications Equity Associates, Inc. ("CEA").

         3.13  Employment  Arrangements.  Section 3.13 of the Seller  Disclosure
Schedule contains a true,  accurate and complete list of all employees of Seller
and each Seller Subsidiary involved in the operation of the Seller Assets or the
conduct of the Seller Business (the "Seller Employees"), together with each such
employee's  title or the  capacity in which he or she is employed  and the basis
for each such employee's  compensation.  None of Seller or any Seller Subsidiary
has any  obligation or  liability,  contingent  or other,  under any  Employment
Arrangement  with any Seller  Employee,  other than those listed or described in
Section 3.13 of the Seller Disclosure  Schedule.  Except as described in Section
3.13 of the Seller Disclosure Schedule, (a) none of the Seller Employees is now,
or since  January  1, 1996 has  been,  represented  by any labor  union or other
employee collective  bargaining  organization,  and none of Seller or any Seller
Subsidiary  is,  or ever  has  been,  a party to any  labor or other  collective
bargaining agreement with respect to any of the Seller Employees,  (b) there are
no pending  grievances,  disputes or  controversies  with any union or any other
employee or collective bargaining  organization of such employees, or threats of
strikes,  work  stoppages  or slowdowns  or any pending  demands for  collective
bargaining  by any such union or other  organization,  (c) none of  Seller,  any
Seller  Subsidiary or any of such employees is now, or has since January 1, 1996
been, subject to or involved in or, to Seller's knowledge,  threatened with, any
union elections, petitions therefore

                                      -11-


<PAGE>



or other organizational or recruiting  activities,  in each case with respect to
the Seller  Employees,  and (d) none of the Seller  Employees  has given written
notice to  Seller or any  Seller  Subsidiary  that he or she does not  intend to
continue  employment  with Seller  until the Closing or with ATS  following  the
Closing.  Seller  and each  Seller  Subsidiary  has  performed  in all  material
respects all  obligations  required to be performed  under all Plans and Benefit
Arrangements  and is not in  material  breach  or  violation  of or in  material
default or arrears under any of the terms, provisions or conditions thereof.

         3.14  Material  Agreements.  Listed  on  Section  3.14  of  the  Seller
Disclosure  Schedule are all Material  Agreements  relating to the  ownership or
operation  of the Seller  Assets or the  conduct of the  business  of the Seller
Business or to which Seller and each Seller Subsidiary is a party or to which it
is bound or which  any of the  Seller  Assets is  subject.  True,  accurate  and
complete copies of each of such Material  Agreements have been made available by
Seller to ATS and Seller has provided ATS with  photocopies of all such Material
Agreements requested by ATS (or true, accurate and complete descriptions thereof
have been set forth in Section  3.14 of the  Seller  Disclosure  Schedule,  with
respect to Material  Agreements that are oral). All of such Material  Agreements
are  valid,  binding  and  legally  enforceable  obligations  of  Seller  or the
applicable  Seller  Subsidiary  and, to Seller's  knowledge,  all other  parties
thereto, except as such enforceability may be limited by bankruptcy, moratorium,
insolvency  and similar laws  affecting the rights and remedies of creditors and
obligations of debtors generally and by general principles of equity. Seller and
each Seller  Subsidiary  has duly  complied  with all of the material  terms and
conditions  of each such Material  Agreement  and has not done or performed,  or
failed to do or perform  (and,  to  Seller's  knowledge,  there is no pending or
threatened Claim that Seller or any Seller Subsidiary has not so complied,  done
and  performed or failed to do and perform)  any act which would  invalidate  or
provide  grounds  for the other  party  thereto  to  terminate  (with or without
notice, passage of time or both) such Material Agreement or impair the rights or
benefits, or increase the costs, of Seller or any Seller Subsidiary under any of
such Material Agreements in any material respect.

         3.15 Ordinary  Course of Business.  Seller and each Seller  Subsidiary,
from the end of its most recent  fiscal year to the date  hereof,  except (i) as
may be described on Section 3.15 of the Seller Disclosure  Schedule,  or (ii) as
may be required or expressly  contemplated by the terms of this Agreement,  with
respect to the Seller Assets and the Seller Business:

                  (a) has operated its business in all material  respects in the
         normal,  usual and customary  manner in the ordinary and regular course
         of business, consistent with prior practice;

                  (b) except in each case in the  ordinary  course of  business,
         consistent with prior practice,  has not sold or otherwise  disposed of
         or contracted to sell or otherwise  dispose of any of its properties or
         assets having a value in excess of $50,000;

                  (c) has not made or  committed  to make any  additions  to its
         property or any purchases of equipment,  except in the ordinary  course
         of business consistent with past practice or for normal maintenance and
         replacements;

                  (d) has not  increased the  compensation  payable or to become
         payable  to any of the  Seller  Employees  other  than in the  ordinary
         course of business or otherwise materially altered, modified or changed
         the terms of their employment;

                  (e) has not suffered any material damage,  destruction or loss
         (whether or not covered by insurance) or any  acquisition  or taking of
         property by any Authority;

                  (f) has not waived any rights of material  value  without fair
         and adequate consideration;

                                      -12-


<PAGE>




                  (g)      has not experienced any work stoppage;

                  (h) except in the ordinary course of business, has not entered
         into,  amended or  terminated  any Lease,  Governmental  Authorization,
         Private Authorization, Material Agreement or Employment Arrangement, or
         any transaction, agreement or arrangement with any Affiliate of Seller,
         except for Seller Nonassumed Obligations; and

                  (i) has not entered  into any other  transaction  or series of
         related transactions which individually or in the aggregate is material
         to the Seller Assets or the Seller Business.

         3.16  Material and Adverse  Restrictions.  None of Seller or any Seller
Subsidiary is a party to or subject to, nor is any of the Seller Assets  subject
to, any Applicable  Law,  Governmental  Authorization,  Contractual  Obligation,
Employment  Arrangement,  Material  Agreement or Private  Authorization,  or any
other  obligation or restriction of any kind or character,  which now has or, as
far  as  Seller  can  now  reasonably  foresee,  at  any  time  in  the  future,
individually or in the aggregate, is likely to have, any material Adverse effect
on the ability of Seller or any Seller  Subsidiary  to perform  its  obligations
under  this  Agreement,  except  as set  forth  in  Section  3.16 of the  Seller
Disclosure Schedule.

         3.17  Solvency.  As of the  execution  and delivery of this  Agreement,
Seller and each Seller  Subsidiary is, and immediately prior to and after giving
effect to the consummation of the Transactions will be, solvent.

         3.18 Environmental Matters.  Except as set forth in Section 3.18 of the
Seller Disclosure Schedule,  with respect to the Seller Assets,  Seller and each
Seller Subsidiary:

                  (a) has not been notified that it is potentially liable under,
         has not received any request for  information  or other  correspondence
         concerning its potential liability with respect to any site or facility
         under, and, to Seller's  knowledge,  is not a "potentially  responsible
         party" under, the Comprehensive  Environmental  Response,  Compensation
         and  Liability  Act of 1980,  as  amended,  the  Resource  Conservation
         Recovery Act, as amended, or any similar state law;

                  (b) has not  entered  into or  received  any  consent  decree,
         compliance  order  or  administrative  order  issued  pursuant  to  any
         Environmental Law;

                  (c) is  not a  party  in  interest  or in  default  under  any
         judgment,  order, writ,  injunction or decree of any Final Order issued
         pursuant to any Environmental Law;

                  (d) to Seller's  knowledge,  is in  compliance in all material
         respects with all  Environmental  Laws, has obtained all  Environmental
         Permits required under  Environmental Laws, and, to Seller's knowledge,
         is not the subject of or threatened  with any Legal Action  involving a
         demand for damages or other potential liability including any Lien with
         respect  to   material   violations   or   material   breaches  of  any
         Environmental Law;

                  (e) has no knowledge of any past or present  Event  related to
         the Seller  Business or the Seller Assets which Event,  individually or
         in the aggregate,  will interfere  with or prevent  continued  material
         compliance with all  Environmental  Laws, or which,  individually or in
         the  aggregate,  will  form the  basis of any  material  Claim  for the
         release or threatened  release into the  environment,  of any Hazardous
         Material; and


                                      -13-


<PAGE>



                  (f)      does not own or use any underground storage tank.


                                    ARTICLE 4

                      REPRESENTATIONS AND WARRANTIES OF ATS

         ATS represents,  warrants and covenants to, and agrees with,  Seller as
follows:

         4.1  Organization  and  Business;   Power  and  Authority;   Effect  of
Transaction.

         (a) ATS is a corporation  duly organized,  validly existing and in good
standing  under  the  laws  of its  jurisdiction  of  incorporation  and has all
requisite  power and authority  (corporate and other) to own or hold under lease
its properties and to conduct its business as now conducted.

         (b) ATS has all  requisite  corporate  power  and  corporate  authority
necessary  to enable it to execute and deliver,  and to perform its  obligations
under,  this Agreement and each Collateral  Document  executed or required to be
executed by it pursuant hereto or thereto or to consummate the Transactions; and
the execution,  delivery and  performance of this Agreement and each  Collateral
Document  executed or  required to be executed by it pursuant  hereto or thereto
have been duly authorized by all requisite corporate or other action on the part
of  ATS.  This  Agreement  has  been  duly  executed  and  delivered  by ATS and
constitutes, and each Collateral Document executed or required to be executed by
it pursuant  hereto or thereto or to consummate the  Transactions  when executed
and delivered by ATS will constitute,  legal,  valid and binding  obligations of
ATS,  enforceable  in accordance  with their  respective  terms,  except as such
enforceability may be limited by bankruptcy,  moratorium, insolvency and similar
laws  affecting  the rights and remedies of  creditors  and the  obligations  of
debtors generally and by general principles of equity.

         (c) Except for matters which would have not material  Adverse effect on
ATS,  neither  the  execution  and  delivery  by ATS of  this  Agreement  or any
Collateral Document executed or required to be executed by it pursuant hereto or
thereto,  nor the consummation by ATS of the  Transactions,  nor compliance with
the terms, conditions and provisions hereof or thereof by ATS:

                  (i) will conflict with, or result in a breach or violation of,
         or  constitute  a default  under,  any  Organic  Document of ATS or any
         Applicable  Law on the part of ATS, or will conflict with, or result in
         a breach or violation of, or constitute a default under,  or permit the
         acceleration  of  any  obligation  or  liability  in,  or but  for  any
         requirement  of  giving  of notice  or  passage  of time or both  would
         constitute  such a conflict  with,  breach or violation  of, or default
         under, or permit any such  acceleration in, any Contractual  Obligation
         of ATS; or

                  (ii)  will  require  ATS to make or  obtain  any  Governmental
         Authorization,  Governmental Filing or Private Authorization  including
         without  limitation  under  the  FCA,  except  for  filings  under  the
         Hart-Scott-Rodino  Act and  filings  listed  in  Section  3.1(c) of the
         Seller Disclosure Schedule which will be made jointly with Seller.

         4.2  Broker or  Finder.  No Person  assisted  in or  brought  about the
negotiation  of this  Agreement or the  Transactions  in the capacity of broker,
agent or finder or in any similar capacity on behalf of ATS.

         4.3 No Legal  Action.  There are no Legal  Actions  pending  or, to the
knowledge of ATS,  threatened against ATS or any of its Affiliates,  officers or
directors,  that  question or may affect the  validity of this  Agreement or the
right  or  obligation  of  ATS  to  consummate  the  transactions   contemplated
hereunder.

                                      -14-


<PAGE>





                                    ARTICLE 5

                                    COVENANTS

         5.1      Access to Information; Confidentiality.

         (a) Seller shall afford to ATS and its accountants,  counsel,  lenders,
financial advisors and other representatives (the "Representatives") full access
during normal business hours  throughout the period prior to the Closing Date to
all of  Seller's  and each Seller  Subsidiary's  properties,  books,  contracts,
commitments and records  (including  without limitation Tax Returns) relating to
the Seller Assets and the Seller Business and, during such period, shall furnish
promptly  upon  request (i) a copy of each report,  schedule and other  document
filed or received by any of them pursuant to the  requirements of any Applicable
Law or filed by it with any Authority in  connection  with the  Transactions  or
which may have an Adverse effect on the Seller Assets or the Seller  Business or
the  businesses,   operations,   properties,   prospects,  personnel,  condition
(financial  or other),  or results of  operations  thereof,  (ii) all  financial
records,  ledgers,  work  papers  and other  sources  of  financial  information
possessed and controlled by Seller or its accountants  reasonably  deemed by ATS
or its  Representatives  necessary  or useful for the purpose of  performing  an
audit of the Seller  Assets and the Seller  Business  and  certifying  financial
statements and financial  information,  and (iii) such other  information in the
possession  or  control  of  Seller  or its  accountants  concerning  any of the
foregoing as ATS shall reasonably request; provided,  however, that Seller shall
not be required to permit any such access to the extent same would  unreasonably
interfere with Seller's normal business operations.  All non-public  information
relating  to the Seller  Assets or the Seller  Business  furnished  prior to the
execution, or pursuant to the provisions,  of this Agreement,  including without
limitation this Section,  will be kept  confidential  and shall not, without the
prior written consent of Seller,  be disclosed by ATS in any manner  whatsoever,
in whole or in part,  and  shall  not be used for any  purposes,  other  than in
connection  with  the  Transactions.  In no  event  shall  ATS  or  any  of  its
Representatives  use such information to the detriment of Seller.  ATS agrees to
reveal such  information only to those of its  Representatives  or other Persons
who  need  to  know  such   information   for  the  purpose  of  evaluating  the
Transactions,  who are informed of the  confidential  nature of such information
and who shall  undertake to act in accordance  with the terms and  conditions of
this  Agreement.  From and after  the  Closing  for a period of five (5)  years,
Seller  shall  not,  without  the prior  written  consent of ATS,  disclose  any
information with respect to the Seller Assets or the Seller Business, other than
in connection with the Transactions or to the extent required by Applicable Law.

         (b) Subject to the terms and  conditions  of Section  5.1(a),  ATS may,
subject to prior  consultation with Seller,  disclose such information as may be
necessary in connection with seeking all Governmental and Private Authorizations
or that is required by Applicable  Law to be  disclosed.  In the event that this
Agreement  is  terminated  for any  reason,  ATS shall  promptly  redeliver  all
non-public  written  material  provided  pursuant  to this  Section or any other
provision of this Agreement or otherwise in connection with the Transactions and
shall not retain any copies, extracts or other reproductions in whole or in part
of such  written  material,  other than,  in the event  mutual  releases are not
exchanged  upon such  termination,  one copy thereof which shall be delivered to
independent counsel for ATS.

         (c)  Anything in this  Section or  elsewhere  in this  Agreement to the
contrary  notwithstanding,  either  party may disclose  information  received or
retained by it in accordance  with the  provisions  of this  Agreement if it can
demonstrate  (i) such  information  is  generally  available  to or known by the
public from a source other than the party seeking to disclose  such  information
or (ii) was obtained by the party  seeking to disclose such  information  from a
source other than the other party,  provided that such source was not bound by a
duty of confidentiality to the other party or another party with respect to such
information.

                                      -15-


<PAGE>




         (d) No investigation pursuant to this Section or otherwise shall affect
any  representation  or  warranty  in this  Agreement  of  either  party  or any
condition  to the  obligations  of the  parties  hereto,  except as set forth in
Section 8.3(d).

         (e)  The  provisions  of  this  Section  shall  apply  to  each  Seller
Subsidiary.

         5.2      Agreement to Cooperate.

         (a) Each of the parties  hereto shall use reasonable  business  efforts
(x) to take,  or cause to be taken,  all actions and to do, or cause to be done,
all things necessary, proper or advisable under Applicable Law to consummate the
Transactions, and (y) to refrain from taking, or causing to be taken, any action
and to refrain from doing or causing to be done, any thing which could impede or
impair the consummation of the Transactions,  including,  in all cases,  without
limitation,  using its reasonable  business efforts (i) to prepare and file with
the applicable  Authorities  as promptly as  practicable  after the execution of
this Agreement all requisite applications and amendments thereto,  together with
related information,  data and exhibits, necessary to request issuance of orders
approving the  Transactions  by all such applicable  Authorities,  each of which
must be obtained or become final to the extent provided in Section 6.1(a),  (ii)
to  obtain  all  necessary  or  appropriate  waivers,  consents  and  approvals,
including  without  limitation  those  referred to in Section  6.2(d),  (iii) to
effect all necessary  registrations,  filings and submissions (including without
limitation filings under the Hart-Scott-Rodino Act and all filings necessary for
ATS to own and operate the Seller Assets and conduct the Seller  Business)  (the
parties  agreeing to use  commercially  reasonable  efforts to make all required
filings  under the  Hart-Scott-Rodino  Act within sixty (60) days after the date
hereof,  each  such  filing  to  request  early  termination),  (iv) to lift any
injunction or other legal bar to the Transactions (and, in such case, to proceed
with the  Transactions  as  expeditiously  as  possible),  and (v) to obtain the
satisfaction  of the  conditions  specified  in  Article  6,  including  without
limitation the truth and correctness as of the Closing Date as if made on and as
of the Closing Date of the  representations and warranties of such party and the
performance  and  satisfaction  as of the  Closing  Date of all  agreements  and
conditions to be performed or satisfied by such party.

         (b) The parties shall  cooperate  with one another in the  preparation,
execution and filing of all Tax Returns, questionnaires,  applications, or other
documents  regarding any real property transfer or gains,  sales, use, transfer,
value  added,   stock  transfer  and  stamp  Taxes,  any  transfer,   recording,
registration  and other fees,  and any similar  Taxes  which  become  payable in
connection with the  Transactions  that are required or permitted to be filed on
or before the Closing Date.

         (c) Seller shall cooperate and use its reasonable  business  efforts to
cause its independent  accountants to reasonably cooperate with ATS, and at ATS'
expense,  in order to enable  ATS to have its  independent  accountants  prepare
audited  financial  statements  for the  Seller  Business  described  in Section
6.2(g).  Seller represents and warrants that any such financial  statements will
be true, accurate and complete in all material respects, and will fairly present
the  financial  condition  and results of  operation of the Company on the basis
therein  stated,  as of the  respective  dates  thereof  and for the  respective
periods  covered  thereby.  Without  limiting the  generality of the  foregoing,
Seller agrees that after the Closing Date it will (x) consent to the use of such
audited  financial  statements in any  registration  statement or other document
filed by ATS or any  Affiliate  of ATS under  any  applicable  federal  or state
securities  Law the  Securities  Act or the  Exchange  Act and (y)  execute  and
deliver,  and cause its  directors  and  officers to execute and  deliver,  such
"representation"  letters as are customarily delivered in connection with audits
and  as  ATS'   independent   accountants  may  reasonably   request  under  the
circumstances.

         5.3  Public  Announcements.  Until  the  Closing,  or in the  event  of
termination  of this  Agreement,  Seller  and ATS shall  consult  with the other
before issuing any press release or otherwise making any public

                                      -16-


<PAGE>



statements  with  respect to this  Agreement or the  Transactions  and shall not
issue any such press release or make any such public statement without the prior
written  consent  of  the  other.  Notwithstanding  the  foregoing,  each  party
acknowledges  and agrees  that Seller and ATS may,  without  its prior  consent,
issue such press  releases or make such public  statements as may be required by
Applicable Law, in which case, the party proposing to make such press release or
public  statement will consult with the other  regarding the nature,  extent and
form of such press  release or public  statement.  In  addition,  subject to the
terms and conditions hereof, ATS may disclose,  with Seller's prior consent, not
to be unreasonably withheld, delayed or conditioned,  the subject matter of this
Agreement to Persons with whom Seller has a business or contractual relationship
in connection with ATS' due diligence investigation of Seller.

         5.4  Notification  of Certain  Matters.  Each party  shall give  prompt
notice  to the  other,  of the  occurrence  or  non-occurrence  of any Event the
occurrence  or  non-occurrence  of  which  would  be  likely  to  cause  (i) any
representation  or warranty made by it contained in this  Agreement to be untrue
or inaccurate in any material respect such that one or more of the conditions of
Closing  might not be satisfied,  or (ii) any  covenant,  condition or agreement
made by it contained in this Agreement not to be complied with or satisfied,  or
(iii) any change to be made in the Seller  Disclosure  Schedule  in any  respect
such that one or more of the  conditions of Closing might not be satisfied,  and
any failure  made by it to comply with or satisfy,  or be able to comply with or
satisfy,  any covenant,  condition or agreement to be complied with or satisfied
by it  hereunder  in any  respect  such  that one or more of the  conditions  of
Closing  might not be  satisfied;  provided,  however,  that the delivery of any
notice pursuant to this Section shall not limit or otherwise affect the remedies
available hereunder to the party receiving such notice.

         5.5 No Solicitation.  During the term of this Agreement, none of Seller
or any  Seller  Subsidiary  shall,  nor  shall it  knowingly  permit  any of its
Representatives to, initiate, solicit or facilitate, directly or indirectly, any
inquiries  or the  making  of  any  proposal  with  respect  to any  Alternative
Transaction, engage in any discussions or negotiations concerning, or provide to
any other Person any  information  or data relating to, it or any Subsidiary for
the purposes of, or otherwise cooperate in any way with or assist or participate
in, or facilitate any inquiries or the making of any proposal which constitutes,
or may  reasonably  be  expected  to lead to, a  proposal  to seek or effect any
Alternative  Transaction,  or agree to or endorse any  Alternative  Transaction.
"Alternative  Transaction" means a transaction or series of related transactions
(other  than the  Transactions)  resulting  in (i) any merger or  consolidation,
regardless of whether  Seller or any Seller  Subsidiary is the surviving  Entity
unless the surviving  Entity remains  obligated under this Agreement to the same
extent  as it  was,  or  (ii)  any  sale  or  other  disposition  of  all or any
substantial part of the Seller Assets or the Seller Business.  The provisions of
this  Section  shall  apply to each Seller  Subsidiary.  If Seller or any of its
Representatives  receives any inquiry with respect to an Alternative Transaction
while this Agreement is in effect,  Seller shall inform the inquiring party that
it is not  entitled to enter into  discussions  or  negotiations  relating to an
Alternative Transaction.

         5.6  Conduct of  Business  by Seller  Pending  the  Closing.  Except as
otherwise contemplated by this Agreement, after the date hereof and prior to the
Closing  Date  or  earlier  termination  of this  Agreement,  unless  ATS  shall
otherwise  agree  in  writing,   Seller  shall,  and  shall  cause  each  Seller
Subsidiary, to the extent relating to the Seller Business or the Seller Assets:

                  (a) conduct its  business in the  ordinary and usual course of
         business  and  consistent   with  past  practice,   including   without
         limitation the performance of such maintenance, repairs or replacements
         with respect to communication  towers,  fixtures and Personal  Property
         comprising  the  Seller  Assets as is  consistent  with  past  practice
         (except that the foregoing  shall not be construed to require Seller or
         any Seller Subsidiary to make capital expenditures other than those set
         forth in Section 5.6(a) of the Seller  Disclosure  Schedule  unless ATS
         shall first agree in writing to reimburse

                                      -17-


<PAGE>



         Seller the cost therefor in which event Seller or the applicable Seller
         Subsidiary shall be obligated to make such capital expenditure);

                  (b) use all reasonable business efforts to preserve intact its
         business organizations and goodwill, keep available the services of its
         present  key   employees,   and  preserve  the  goodwill  and  business
         relationships  with customers and others having business  relationships
         with it;

                  (c) confer, as and when reasonably requested, on a regular and
         frequent  basis  with  one or  more  representatives  of ATS to  report
         material   operational  matters  and  the  general  status  of  ongoing
         operations;

                  (d) maintain with financially  responsible insurance companies
         insurance  on its assets and its  business in such  amounts and against
         such risks and losses as are consistent with past practice;

                  (e) use reasonable  business efforts to (i) operate the Seller
         Business in conformity in all material  respects with all  Governmental
         and Private  Authorizations,  Leases and Material Agreements on a basis
         consistent  with past  practice  and  Applicable  Law and the rules and
         regulations of any Authority with  jurisdiction  over the Seller Assets
         or the Seller Business,  and (ii) maintain in full force and effect all
         such  Governmental  and  Private  Authorizations,  Leases and  Material
         Agreements relating to the Seller Business;

                  (f) not (i)  dispose  of any of the  Seller  Assets  owned  by
         Seller or any Seller  Subsidiary or used in the operation of the Seller
         Business  (other than for the  disposition  in the  ordinary  course of
         business of immaterial  assets that are of no further use to the Seller
         Business)  or (ii) modify or change in any material  respect,  or enter
         into, any Material Agreement relating to the Seller Business; and

                  (g) not voluntarily take any action which if taken between the
         end of its  most  recent  fiscal  year  and  prior  to the date of this
         Agreement  would  have been  required  to be noted as an  exception  on
         Section 3.15 of the Seller Disclosure Schedule.

With respect to any  transaction or act proposed to be entered into or performed
by Seller  which,  pursuant  to  paragraphs  (a)  through  (g) of this  section,
requires the prior  approval of ATS, ATS shall be deemed to have  approved  same
unless  written  notice of  disapproval  is received  by Seller  within ten (10)
business  days after  receipt by ATS of a written  request for approval  made by
Seller.

         5.7  Preliminary  Title Reports.  As promptly as practicable  after the
execution of this Agreement, Seller shall, at its sole cost and expense, deliver
or cause to be delivered to ATS a standard  preliminary title report dated on or
after the date of this  Agreement  issued by such title  company or companies as
Seller  and ATS  shall  mutually  reasonably  agree  (collectively,  the  "Title
Company")  with respect to those Seller Assets  comprised of the parcels of real
property  described  in  Section  5.7 of the  Seller  Disclosure  Schedule  (the
"Insured Real Property").  Such reports,  as same may be amended or supplemented
from time to time to reflect additional title matters, are referred to herein as
the "Title Reports".  The rights and obligations of the parties shall thereafter
be as follows:

                  (a) On or before fifteen (15) business days after ATS' receipt
         of each of the Title  Reports,  ATS shall give to Seller written notice
         ("ATS' Title  Notice") of ATS'  disapproval of any matters shown in the
         Title  Reports.  ATS' failure to give ATS' Title Notice shall be deemed
         to  constitute  ATS'  approval  of all matters  disclosed  by the Title
         Reports.


                                      -18-


<PAGE>



                  (b) If ATS  disapproves  any title  matters  pursuant  to ATS'
         Title Notice,  Seller shall deliver  written  notice  ("Seller's  Title
         Notice")  to ATS within  fifteen  (15)  business  days  after  Seller's
         receipt  of  ATS'  Title  Notice,  stating  whether  Seller  agrees  to
         eliminate  or cause the Title  Company to insure over such  disapproved
         title  matters  from title to the Insured  Real  Property  prior to the
         Closing or, if  elimination  is not feasible  prior to the Closing,  to
         effect such  elimination  thereafter and to indemnify and hold harmless
         ATS with  respect to such  remedy.  If Seller  fails to timely  deliver
         Seller's Title Notice,  or if Seller delivers Seller's Title Notice but
         states  therein that Seller is  unwilling  or unable to eliminate  such
         disapproved title matters, ATS and Seller shall negotiate in good faith
         in an attempt to resolve such matters  which  resolution  may,  without
         limitation,  take the form of eliminating one or more of the sites with
         disapproved   title  matters  (the   "Disapproved   Title  Sites"  and,
         collectively   with  the   "Disapproved   Environmental   Sites",   the
         "Disapproved  Sites")  from  the  Seller  Assets,  a  reduction  of the
         Purchase Price or an  indemnification  (or escrow) from Seller (subject
         to the  limitations  as to time or amount  specified in Section 5.9 and
         Article 8). If within twenty (20)  business  days of such  negotiations
         (or such longer period as ATS and Seller shall agree), the parties have
         been unable to resolve  such  matters,  the  provisions  of Section 5.9
         shall govern.

                  (c) If,  at any time  following  ATS'  approval  of the  Title
         Reports,  Seller or the Title  Company  notifies ATS of any  additional
         matter affecting title to the Insured Real Property,  the parties shall
         have  substantially the same rights and obligations as are set forth in
         paragraphs (a) and (b) above with respect to the affected parcel.

         5.8  Environmental  Site  Assessments.  Not later  than sixty (60) days
after the  execution of this  Agreement,  ATS may obtain,  and deliver to Seller
full and complete copies of, Phase I environmental  site assessment reports (the
"Environmental Reports") on any or all of those certain parcels of real property
described on Section 5.8 of the Seller  Disclosure  Schedule.  Site  assessments
shall be conducted by such consultants and professionals as ATS and Seller shall
mutually  agree  (collectively,  the  "Environmental  Company"),  and  shall  be
arranged at times  mutually  convenient  to the parties.  Each of Seller and ATS
shall  be  entitled  to have  representatives  present  at the  time  such  site
assessments  are conducted,  and to have copies of all  correspondence  with the
Environmental Company.

                  (a) On or before fifteen (15) business days after ATS' receipt
         of each of the Environmental  Reports, ATS shall give to Seller written
         notice ("ATS' Environmental Notice") of ATS' disapproval of any matters
         shown  in  the  Environmental   Reports.  ATS'  failure  to  give  ATS'
         Environmental Notice shall be deemed to constitute ATS' approval of all
         matters disclosed by the Environmental Reports.

                  (b) If ATS disapproves any  environmental  matters pursuant to
         ATS'  Environmental   Notice,   Seller  shall  deliver  written  notice
         ("Seller's  Environmental  Notice") to ATS within fifteen (15) business
         days after  Seller's  receipt  of ATS'  Environmental  Notice,  stating
         whether  Seller agrees to eliminate and remedy such matter prior to the
         Closing or, if such  elimination or remedy is not feasible prior to the
         Closing,  to effect  such  elimination  and  remedy  thereafter  and to
         indemnify and hold harmless ATS with respect to such remedy.  If Seller
         fails to timely deliver  Seller's  Environmental  Notice,  or if Seller
         delivers Seller's  Environmental  Notice but states therein that Seller
         is  unwilling  or unable to  eliminate  and remedy  such  environmental
         matters,  ATS and Seller shall negotiate in good faith in an attempt to
         resolve such matters which resolution may, without limitation, take the
         form  of  eliminating  one  or  more  of  the  sites  with  disapproved
         environmental matters (the "Disapproved  Environmental Sites") from the
         Seller Assets, a reduction of the Purchase Price or an  indemnification
         (or escrow)  from  Seller  (subject  to the  limitations  as to time or
         amount  specified in Section 5.9 and Article 8). If within  twenty (20)
         business days of such negotiations (or

                                      -19-


<PAGE>



         such longer  period as ATS and Seller  shall  agree),  the parties have
         been unable to resolve  such  matters,  the  provisions  of Section 5.9
         shall govern.

                  (c)  If,  at  any  time   following   ATS'   approval  of  the
         Environmental Reports, ATS or the Environmental Company notifies Seller
         of  any  additional   environmental  matter,  the  parties  shall  have
         substantially  the same  rights  and  obligations  as are set  forth in
         paragraphs (a) and (b) above with respect to the affected site.

         5.9 Resolution of Title and Environmental  Disapproved  Matters. In the
event ATS and Seller are unable to resolve  matters with respect to  disapproved
title matters  pursuant to the  provisions of Section 5.7 and/or with respect to
disapproved environmental matters pursuant to the provisions of Section 5.8, the
rights  and  obligations  of the  parties  with  respect to such  matters  shall
thereafter be as follows:

                  (a) In the event that the aggregate cost reasonably  estimated
         by the parties  (or,  in the event they are unable to agree,  the Title
         Company and the  Environmental  Company) to eliminate  the  disapproved
         title matters and eliminate  and remedy the  disapproved  environmental
         matters with respect to the Disapproved  Sites (the  "Disapproved  Cost
         Amount") is not greater than  $500,000  with respect to any  particular
         Disapproved  Site (the "Maximum Site  Disapproved Cost Amount") and not
         greater  than  $2,000,000  for  all  Disapproved  Sites  (the  "Maximum
         Disapproved  Cost  Amount"),  then ATS shall  have the right to require
         Seller to remedy all such matters (including,  at ATS' election,  after
         the Closing in which event Seller shall indemnify and hold harmless ATS
         with  respect to such  remedy and shall  place in escrow with the Title
         Company a sum sufficient to effect such remedy but not in excess of the
         limitations  set  forth  in this  paragraph)  and to  proceed  with the
         Closing;

                  (b) In the event that the  Disapproved  Cost Amount is greater
         than the Maximum Disapproved Cost Amount, then ATS shall have the right
         to  require  Seller  to remedy  all such  matters  (including,  at ATS'
         election,  after the Closing in which event Seller shall  indemnify and
         hold harmless ATS with respect to such remedy and shall place in escrow
         with the Title  Company a sum  sufficient to effect such remedy but not
         in  excess  of the  limitations  set  forth  in  paragraph  (a) of this
         Section) and to proceed with the Closing; provided, however, that under
         such circumstances,  Seller shall have the right to elect not to effect
         such remedy with respect to (i) any particular  Disapproved Site if the
         Disapproved  Cost Amount for such  Disapproved Site exceeds the Maximum
         Site  Disapproved  Cost Amount and (ii) one or more of the  Disapproved
         Sites (to the extent  there is a choice,  selected  by Seller  with the
         approval of ATS, such approval not to be  unreasonably  withheld),  the
         aggregate  Disapproved  Cost  Amount of which is not  greater  than the
         excess of the Disapproved Cost Amount over the Maximum Disapproved Cost
         Amount,  in which event,  unless  Seller or ATS shall,  in its sole and
         absolute discretion, have agreed to bear the excess determined pursuant
         to clause (i) and/or (ii) of this  paragraph or the parties  shall have
         otherwise  agreed in writing,  such  Disapproved Site or Sites shall be
         eliminated  from the Seller  Assets  and the  Purchase  Price  shall be
         reduced in accordance with the provisions of paragraph (c) below; and

                  (c) In the event one or more  Disapproved  Sites is eliminated
         from the Seller Assets, the parties shall negotiate in good faith in an
         attempt to agree upon the fair market value of such Disapproved  Sites,
         which value shall be based on the Purchase  Price and shall assume that
         there were no  disapproved  title  and/or  environmental  matters  with
         respect to such Disapproved  Sites. In the event the parties are unable
         within  twenty (20) business days to agree upon such fair market value,
         the matter shall be submitted to binding,  nonappealable arbitration in
         accordance  with  the  federal  commercial  arbitration  rules  of  the
         American Arbitration  Association before the Philadelphia chapter, with
         each party paying its own legal and other expenses.


                                      -20-


<PAGE>



         Anything in this Section or elsewhere in this Agreement to the contrary
notwithstanding,  the costs  required to be  expended by Seller  pursuant to the
provisions of this Section  (whether  prior or subsequent to the Closing)  shall
not affect the obligations of Seller pursuant to the provisions of Article 8.

         5.10  Post-Closing  Covenants and  Agreements of the Parties.  From and
after the consummation of the Transactions, ATS and Seller covenant and agree as
follows:

                  (a) ATS shall  afford to Seller,  and Seller  shall  afford to
         ATS,  access to each of their (and,  in the case of Seller,  any of the
         Seller  Subsidiaries)  respective employees who were (or in the case of
         Seller  who  remain)   employees  of  Seller  (or  any  of  the  Seller
         Subsidiaries)  on the Closing Date to the end that such  employees  are
         available to provide assistance, consultation and historical background
         to the requesting party; provided, however, that neither ATS nor Seller
         shall have any such  obligation  after the  expiration  of one (1) year
         from the Closing Date or to the extent that it would  unduly  interfere
         with the  continuing  conduct  by ATS or  Seller  of  their  respective
         businesses; and

                  (b) ATS shall  afford to Seller,  and Seller  shall  afford to
         ATS,  access to all books and records  delivered  to ATS or retained by
         Seller  (or  any of the  Seller  Subsidiaries),  as the  case  may  be,
         relating  to  periods  prior to the  Closing  Date,  in order to enable
         Seller  or ATS,  as the case  may be,  to  prepare  all  necessary  Tax
         Returns,  deal with Legal  Actions or other Claims  (including  without
         limitation those of the Internal Revenue Service) or personnel  matters
         or for any other reasonable purposes,  subject, however, in all events,
         to the provisions of Section 5.1 with respect to confidentiality.


                                    ARTICLE 6

                               CLOSING CONDITIONS

         6.1 Conditions to Obligations of Each Party. The respective obligations
of each party to effect the Transactions shall,  except as hereinafter  provided
in this Section,  be subject to the satisfaction at or prior to the Closing Date
of the following  conditions,  any or all of which may be waived in writing,  in
whole or in part, to the extent permitted by Applicable Law:

                  (a) As of the Closing  Date,  no Legal Action shall be pending
         before or  threatened  in writing by any  Authority  seeking to enjoin,
         restrain,  prohibit or make illegal or to impose any materially Adverse
         conditions in connection with, the consummation of the Transactions, it
         being understood and agreed that a written request by any Authority for
         information with respect to the  Transactions,  which information could
         be used in connection  with such Legal  Action,  shall not in itself be
         deemed to be a threat of any such Legal Action; and

                  (b) All authorizations, consents, waivers, orders or approvals
         required  to  be  obtained  from  all  Authorities,  and  all  filings,
         submissions, registrations, notices or declarations required to be made
         by ATS and Seller with any Authority,  prior to the consummation of the
         Transactions,  shall have been obtained  from,  and made with, all such
         Authorities, except for such authorizations, consents, waivers, orders,
         approvals, filings, registrations,  notices or declarations, if any, as
         are set forth in Section  6.1(b) of the Seller  Disclosure  Schedule or
         the  failure to obtain or make would not,  in the  reasonable  business
         judgment of ATS, have a material Adverse effect on the Seller Assets or
         the Seller Business.


                                      -21-


<PAGE>



         6.2  Conditions to  Obligations of ATS. The obligation of ATS to effect
the  Transactions  shall  be  subject  to  the  satisfaction  of  the  following
conditions,  any or all of which may be waived in writing,  in whole or in part,
to the extent permitted by Applicable Law:

                  (a) All agreements, certificates, opinions and other documents
         required to be delivered  pursuant to the  provisions of this Agreement
         shall be reasonably  satisfactory  in form,  scope and substance to ATS
         and its  counsel,  and ATS and its  counsel  shall  have  received  all
         information and copies of all documents, including records of corporate
         proceedings, which they may reasonably request in connection therewith,
         such documents where appropriate to be certified by proper  Authorities
         or corporate officers;

                  (b) Seller shall have furnished ATS and, at ATS' request,  any
         bank or other  financial  institution  providing  credit to ATS, with a
         favorable  opinion,  dated the Closing  Date of Saul,  Ewing,  Remick &
         Saul, counsel for Seller and the Seller  Subsidiaries,  with respect to
         the matters set forth in Sections 3.1 and 3.7,  and such other  matters
         arising  after  the  date  of  this   Agreement  and  incident  to  the
         Transactions,  as ATS or its  counsel  or its  counsel  may  reasonably
         request  or which  may be  reasonably  requested  by any  such  bank or
         financial institution or their respective counsel;

                  (c) The  representations and warranties of Seller contained in
         this  Agreement  shall be true and correct in all material  respects at
         and as of the  Closing  Date with the same  force and  effect as though
         made on and as of such date  except  those  which speak as of a certain
         date  which  shall  continue  to be true and  correct  in all  material
         respects  as of  such  date  on the  Closing  Date  (including  without
         limitation  giving effect to any later obtained  knowledge of Seller or
         ATS, except as otherwise specifically provided herein); each and all of
         the  agreements  and  conditions to be performed or satisfied by Seller
         hereunder  at or  prior  to the  Closing  Date  shall  have  been  duly
         performed or satisfied in all material respects;  and Seller shall have
         furnished ATS with such certificates and other documents evidencing the
         truth of such representations, warranties, covenants and agreements and
         the  performance of such agreements or conditions as ATS or its counsel
         shall have reasonably requested;

                  (d) Except for such authorizations,  consents, waivers, orders
         or  approvals  the  failure  of  which  to  obtain  would  not,  in the
         reasonable  business judgment of ATS, have a material Adverse effect on
         the Seller Assets or the Seller Business, all authorizations, consents,
         waivers,  orders  or  approvals  required  by the  provisions  of  this
         Agreement  to be  obtained  from all Persons  (other than  Authorities)
         prior  to the  consummation  of  the  Transactions,  including  without
         limitation  those required by the provisions of this Agreement in order
         to vest fully in ATS all right, title and interest in and to all of the
         Seller Assets and the Seller Business (including without limitation all
         Private  Authorizations,  Leases and Material Agreements of Seller and,
         at the cost and  expense of  Seller,  all  modifications  of Leases and
         other Contractual  Obligations which ATS shall within ten (10) business
         days of the date hereof advise  Seller in writing are a requirement  of
         Closing)  and the full  enjoyment  thereof  shall  have been  obtained,
         without  the  imposition,  individually  or in  the  aggregate,  of any
         condition or requirement which could materially Adversely affect ATS;

                  (e) Between the date of this  Agreement  and the Closing Date,
         there shall not have  occurred and be continuing  any material  Adverse
         change  in  Seller  from  that  reflected  in the  most  recent  Seller
         Financial   Statements  which  Materially  and  Adversely  effects  the
         transactions  contemplated hereby except for events affecting the tower
         rental and video  transmission  industry  generally;  as of the Closing
         Date, the Governmental  Authorizations with respect to the ownership or
         operation  of the Seller  Assets or the conduct of the Seller  Business
         shall not have been  materially  and Adversely  affected by any act, or
         failure to act, of Seller;

                                      -22-


<PAGE>




                  (f) Seller and each Seller  Subsidiary shall have delivered or
         cause to be delivered to ATS all of the Collateral  Documents and other
         agreements,  documents  and  instruments  required to be  delivered  by
         Seller and each  Seller  Subsidiary  to ATS at or prior to the  Closing
         pursuant to the terms of this Agreement;

                  (g) ATS shall have received from its  independent  accountants
         (i) an unqualified report (as to the scope of the audit,  access to the
         books and records and the  cooperation  of management) on the financial
         statements  (consisting  of balance sheets for each of the fiscal years
         ended  December 31, 1995 and 1996 and statements of operations and cash
         flow for each of the three years in the period ended December 31, 1996)
         of the Seller  Business,  which  financial  statements  shall have been
         prepared  in  conformity   with  GAAP  and  Regulation  S-X  under  the
         Securities Act, or (ii) such other documentation as shall be reasonably
         satisfactory to ATS indicating that such an unqualified report could be
         issued if requested by ATS;

                  (h) As of the Closing  Date,  except as otherwise set forth in
         Section 3.7(a) of the Seller Disclosure Schedule, no Legal Action shall
         be pending  before or  threatened  in writing  by any  Authority  which
         might,  in the  reasonable  business  judgment  of ATS,  based upon the
         advice of counsel,  have a material Adverse effect on the Seller Assets
         and the Seller Business,  it being understood and agreed that a written
         request  by  any  Authority  for   information   with  respect  to  the
         Transactions,  which  information could be used in connection with such
         Legal  Action,  shall not be  deemed  to be a threat of any such  Legal
         Action;

                  (i) All Environmental Reports obtained by the parties prior to
         the Closing Date pursuant to the provisions of Section 5.8 hereof shall
         be  approved  or deemed  approved  by ATS in the  manner  described  in
         Section 5.8;

                  (j) Seller and each of the  individuals  named  therein  shall
         have  executed and delivered to ATS an agreement  substantially  in the
         form of Exhibit A  attached  hereto  and made a part  hereof  (the "ATS
         Noncompetition Agreements");

                  (k) ATS shall have  received  standard  CLTA  title  insurance
         policies  insuring ATS' fee or leasehold  interests in all Insured Real
         Property, subject only to Approved Title Conditions; and

                  (l)  Seller or the  applicable  Seller  Subsidiary  shall have
         delivered to ATS leases,  subleases and license agreements with respect
         to certain of the Seller  towers or tower sites as indicated in Section
         6.2(l)  of  the  Seller  Disclosure  Schedule,  all on  the  terms  and
         conditions  set forth in the  applicable  document  included as part of
         Exhibit B attached  hereto and made a part  hereof  (collectively,  the
         "Collateral Real Estate Documents").

         6.3 Conditions to  Obligations  of Seller.  The obligation of Seller to
effect the  Transactions  shall be subject to the  satisfaction of the following
conditions,  any or all of which may be waived in writing,  in whole or in part,
to the extent permitted by Applicable Law:

                  (a) All agreements, certificates, opinions and other documents
         required to be delivered  pursuant to the  provisions of this Agreement
         shall be reasonably satisfactory in form, scope and substance to Seller
         and its  counsel,  and Seller and its counsel  shall have  received all
         information and copies of all documents, including records of corporate
         proceedings, which they may reasonably request in connection therewith,
         such documents where appropriate to be certified by proper  Authorities
         or corporate officers;

                                      -23-


<PAGE>




                  (b) ATS shall have furnished Seller and, at Seller's  request,
         any bank or other  financial  institution  providing  credit to Seller,
         with favorable opinions, dated the Closing Date of Sullivan & Worcester
         LLP,  counsel for ATS, with respect to the matters set forth in Section
         4.1 and 4.3 and with respect to such other  matters  arising  after the
         date of this Agreement and incident to the  Transactions,  as Seller or
         its counsel may reasonably request or which may be reasonably requested
         by any such bank or financial institution or their respective counsel;

                  (c) The  representations  and  warranties  of ATS contained in
         this  Agreement  or  otherwise  made in  writing by it or on its behalf
         pursuant hereto or otherwise made in connection  with the  Transactions
         shall be true and  correct in all  material  respects  at and as of the
         Closing Date with the same force and effect as though made on and as of
         such date except  those  which  speak as of a certain  date which shall
         continue  to be true and  correct in all  material  respects as of such
         date on the Closing Date (including without limitation giving effect to
         any later  obtained  knowledge  of Seller or ATS,  except as  otherwise
         specifically  provided  herein);  each  and all of the  agreements  and
         conditions to be performed or satisfied by ATS hereunder at or prior to
         the Closing  Date shall have been duly  performed  or  satisfied in all
         material  respects;  and ATS  shall  have  furnished  Seller  with such
         certificates   and  other  documents   evidencing  the  truth  of  such
         representations,   warranties,   covenants  and   agreements   and  the
         performance  of such  agreements or conditions as Seller or its counsel
         shall have reasonably requested;

                  (d) ATS  shall  have  delivered  or cause to be  delivered  to
         Seller all of the Collateral Documents and other agreements,  documents
         and  instruments  required to be delivered by ATS to Seller at or prior
         to the Closing pursuant to the terms of this Agreement;

                  (e) Except to the extent,  if any,  specifically  set forth in
         Section 6.2(d) of the Seller Disclosure  Schedule,  all authorizations,
         consents,  waivers,  orders or approvals  required by the provisions of
         this Agreement to be obtained from all Persons (other than Authorities)
         prior  to the  consummation  of  the  Transactions,  including  without
         limitation  those required by the provisions of this Agreement in order
         to vest fully in ATS all right, title and interest in and to all of the
         Seller Assets and the Seller Businesses  (including  without limitation
         all Private  Authorizations,  Leases and Material  Agreements of Seller
         and, at the cost and expense of Seller, all modifications of Leases and
         Contractual  Obligations  heretofore  requested by ATS and set forth in
         Section  6.2(d)  of  the  Seller  Disclosure  Schedule)  and  the  full
         enjoyment  thereof shall have been  obtained,  without the  imposition,
         individually or in the aggregate, of any condition or requirement which
         could materially and Adversely affect Seller;

                  (f) ATS shall  have  delivered  to  Seller  or the  applicable
         Seller Subsidiary the Collateral Real Estate Documents;

                  (g) The  Purchase  Price  shall have been paid as set forth in
         Section 2.3; and

                  (h) As of the Closing  Date,  no Legal Action shall be pending
         before or threatened in writing by any  Authority  which might,  in the
         reasonable  business  judgment  of  Seller,  based  upon the  advice of
         counsel, have a material adverse effect on ATS, it being understood and
         agreed that a written  request by any  Authority for  information  with
         respect  to the  Transactions,  which  information  could  be  used  in
         connection  with such Legal Action,  shall not be deemed to be a threat
         of any such Legal Action.



                                      -24-


<PAGE>



                                    ARTICLE 7

                        TERMINATION, AMENDMENT AND WAIVER

         7.1 Termination.  This Agreement may be terminated at any time prior to
the Closing Date:

                  (a) by mutual written consent of Seller and ATS;

                  (b) by  either  ATS or  Seller  if any  permanent  injunction,
         decree or judgment by any Authority  preventing the consummation of the
         Transactions shall have become final and nonappealable; or

                  (c) by  Seller in the  event  (i)  Seller  is not in  material
         breach of this Agreement and none of its  representations or warranties
         shall have become and  continue to be untrue in any  material  respect,
         and (ii) ATS is in  material  breach  of this  Agreement  or any of its
         representations  or  warranties  shall have  become and  continue to be
         untrue in any material respect, and such a breach or untruth exists and
         is not capable of being cured by and will prevent or delay consummation
         of the Transactions by or beyond the Termination Date; or

                  (d) by ATS in the event (i) ATS is not in  material  breach of
         this Agreement and none of its representations or warranties shall have
         become and  continue  to be untrue in any  material  respect,  and (ii)
         Seller  is  in  material  breach  of  this  Agreement  or  any  of  its
         representations  or  warranties  shall have  become and  continue to be
         untrue in any material respect, and such a breach or untruth exists and
         is not capable of being cured by and will prevent or delay consummation
         of the Transactions by or beyond the Termination Date; or

                  (e) by ATS in the  event of a  failure  of the  condition  set
         forth in Section 6.2(i) or 6.2(k).

         The term  "Termination  Date"  shall mean March 31,  1998 or such other
date as the parties may, from time to time, mutually agree.

         The right of ATS or Seller to terminate this Agreement pursuant to this
Section shall remain  operative  and in full force and effect  regardless of any
investigation  made by or on behalf of either party, any Person  controlling any
such party or any of their respective  Representatives whether prior to or after
the execution of this Agreement.

         7.2      Effect of Termination.

         (a)   Except  as   provided   in   Sections   5.1  (with   respect   to
confidentiality),  5.3,  9.3 and 9.5  and  this  Section,  in the  event  of the
termination  of this  Agreement  pursuant  to Section  7.1,  or in the event the
Transactions shall not have been consummated prior to the end of business on the
Termination  Date, this Agreement shall forthwith become void, there shall be no
liability on the part of either party, or any of their respective  shareholders,
officers or  directors,  to the other and all rights and  obligations  of either
party shall cease;  provided,  however,  that such termination shall not relieve
either party from  liability for any  misrepresentation  or breach of any of its
warranties, covenants or agreements set forth in this Agreement.

         (b) Each of Seller and ATS agrees that, in the event either party shall
seek specific performance of this Agreement in accordance with the provisions of
Section  9.5,  (i) any  breach by it shall be deemed  to be  detrimental  to the
other, (ii) it will not oppose any temporary  restraining order or other form of
injunctive  relief  sought  by the  other  party,  and  (iii) in the case of the
Seller, it will hold the proceeds of any sale or other

                                      -25-


<PAGE>



disposition  of all or any part of the Seller  Assets or the Seller  Business in
constructive trust for the benefit of ATS.

         (c)  In  the  event  this  Agreement  is  terminated  pursuant  to  the
provisions of Section  7.1(a),  7.1(b) or 7.1(e),  except as provided in Section
7.2(a),  neither of the parties shall have any further  rights,  obligations  or
remedies.


                                    ARTICLE 8

                                 INDEMNIFICATION

         8.1  Survival.  The  representations  and  warranties  of  the  parties
contained in or made pursuant to this Agreement or any Collateral Document shall
survive the Closing and shall remain  operative and in full force and effect for
a period  of (a) one (1)  year  after  the  Closing  Date or (b) the  applicable
statute  of  limitations  in the  case of  matters  of a nature  referred  to in
Sections 3.1,  3.7(a),  3.11, 3.18 and 4.1,  regardless of any  investigation or
statement as to the results  thereof  made by or on behalf of any party  hereto.
The  covenants and  agreements  of the parties  contained in or made pursuant to
this  Agreement or any  Collateral  Document shall survive the Closing and shall
remain  operative and in full force and effect for one (1) year unless otherwise
herein  expressly  provided to the contrary.  The term "Indemnity  Period" shall
mean the  applicable  period with respect to which a  representation,  warranty,
covenant or agreement survives the Closing as provided in this Section. No claim
for indemnification,  other than with respect to fraud or intentional or willful
breach  or  misrepresentation,  may be  asserted  after  the  expiration  of the
Indemnity  Period.   Notwithstanding   anything  herein  to  the  contrary,  any
representation, warranty, covenant and agreement which arises and is the subject
of a  Claim  which  is  asserted  in  writing  prior  to the  expiration  of the
applicable  Indemnity  Period  shall  survive  with respect to such Claim or any
dispute with respect thereto until the final resolution thereof.

         8.2 Indemnification.  Each of Seller and ATS (the "indemnifying party")
agrees that on and after the Closing it shall  indemnify  and hold  harmless the
other (the  "indemnified  party") from and against any and all damages,  claims,
losses,  expenses,   costs,  obligations  and  liabilities,   including  without
limitation liabilities for all reasonable attorneys',  accountants' and experts'
fees  and  expenses  including  those  incurred  to  enforce  the  terms of this
Agreement or any Collateral  Document  executed by it  (collectively,  "Loss and
Expense"),  suffered, directly or indirectly, by the indemnified party by reason
of, or arising out of:

                  (a) any material breach of  representation or warranty made by
         the  indemnifying  party  pursuant to this  Agreement or any Collateral
         Document  executed  by it or any failure by the  indemnifying  party to
         perform or fulfill any of its  respective  covenants or agreements  set
         forth in this Agreement or any Collateral Document executed by it; or

                  (b) in the  case of  Seller  as the  indemnifying  party,  the
         failure of Seller or any Seller  Subsidiary  to comply  with Bulk Sales
         law of any applicable jurisdiction; or

                  (c) in the case of Seller as the indemnifying party, by reason
         of, or arising out of, (i) Seller  Nonassumed  Obligations  and/or (ii)
         the  ownership  and  operation  of the  Seller  Assets  and the  Seller
         Business prior to the Closing Date; or

                  (d) in the case of ATS as the  indemnifying  party,  by reason
         of, or arising out of, (i) Seller Assumed  Obligations  and/or (ii) the
         ownership and  operation of the Seller  Assets and the Seller  Business
         from and after the Closing Date,  except for Events arising prior to or
         existing on the

                                      -26-


<PAGE>



         Closing Date,  unless they are part of the Seller Assumed  Obligations,
         and/or (iii) Section 5.2(c) financial statements,  except to the extent
         Seller is liable to ATS pursuant to the  provisions of paragraph (a) of
         this Section.

         8.3      Limitation of Liability.

         (a)  Notwithstanding  the provisions of Section 8.2, after the Closing,
except as otherwise provided in Section 8.6, each indemnified  party's rights to
indemnification  shall  be  subject  to  the  following  limitations:   (i)  the
indemnified  party  shall be entitled to recover its Loss and Expense in respect
of any Claim  only in the event  that the  aggregate  Loss and  Expense  for all
Claims exceeds, in the aggregate,  $50,000, in which event the indemnified party
shall be  entitled  to  recover  all such Loss and  Expense  (including  without
limitation  such  $50,000),  and (ii) in no event  shall  the  aggregate  amount
required to be paid by each  indemnifying  party  pursuant to the  provisions of
this  Article  exceed  the  greater of (x)  $1,000,000  or (y) the excess of (I)
$2,500,000 over the (II) the amount paid by such indemnifying  party pursuant to
the  provisions  of Section 5.9,  except for any Loss or Expense  arising out of
matters  of a  nature  referred  to in  Sections  3.1  and 4.1 as to  which  the
limitations set forth in this clause (ii) shall not apply.

         (b) In the case any event shall occur  which  would  otherwise  entitle
either  party  to  assert a claim  for  indemnification  hereunder,  no Loss and
Expense  shall be deemed to have been  sustained  by such party to the extent of
any proceeds  received by such party from any  insurance  policies  with respect
thereto.

         8.4 Notice of Claims.  If an  indemnified  party  believes  that it has
suffered or incurred  any Loss and  Expense,  it shall  notify the  indemnifying
party promptly in writing,  and in any event within the  applicable  time period
specified in Section 8.1, describing such Loss and Expense,  all with reasonable
particularity  and containing a reference to the provisions of this Agreement in
respect of which such Loss and Expense shall have occurred.  If any Legal Action
is  instituted  by a third  party  with  respect to which an  indemnified  party
intends  to claim any  liability  or  expense  as Loss and  Expense  under  this
Article,  such indemnified party shall promptly notify the indemnifying party of
such Legal Action, but the failure to so notify the indemnifying party shall not
relieve such indemnifying party of its obligations under this Article, except to
the  extent  such  failure to notify  materially  prejudices  such  indemnifying
party's ability to defend against such Claim.

         8.5 Defense of Third Party Claims.  The  indemnifying  party shall have
the right to  conduct  and  control,  through  counsel  of their  own  choosing,
reasonably  acceptable to the indemnified party, any third party Legal Action or
other Claim, but the indemnified party may, at its election,  participate in the
defense  thereof at its sole cost and expense;  provided,  however,  that if the
indemnifying  party shall fail to defend any such Legal  Action or other  Claim,
then the indemnified party may defend, through counsel of its own choosing, such
Legal Action or other Claim, and (so long as it gives the indemnifying  party at
least fifteen (15) days' notice of the terms of the proposed  settlement thereof
and permits the indemnifying party to then undertake the defense thereof) settle
such Legal Action or other Claim and to recover the amount of such settlement or
of any  judgment and the  reasonable  costs and  expenses of such  defense.  The
indemnifying party shall not compromise or settle any such Legal Action or other
Claim without the prior written consent of the indemnified  party, which consent
shall not  unreasonably  be withheld,  delayed or  conditioned  if the terms and
conditions of such compromise or settlement  proposed by the indemnifying  party
and agreed to in writing by the  claimant  in such Legal  Action or other  Claim
(the "Settlement  Proposal") (a) include a full release of the indemnified party
from the Legal  Action or other  Claim  which is the  subject of the  Settlement
Proposal,  and (b) if the  indemnified  party is ATS, do not include any term or
condition which would restrict in any material manner the continued ownership or
operations  of the  Seller  Assets or the  conduct  of the  Seller  Business  in
substantially the manner then being theretofore owned, operated and conducted by
ATS.


                                      -27-


<PAGE>



         8.6  Exclusive  Remedy.  Except  for fraud or  willful  or  intentional
misrepresentation  or breach of warranty,  covenant or agreement or as otherwise
provided in Section 9.5, the  indemnification  provided in this Article shall be
the sole and exclusive post-Closing remedy available to either party against the
other party for any Claim under this Agreement.


                                    ARTICLE 9

                               GENERAL PROVISIONS

         9.1  Amendment.  This Agreement may be amended from time to time by the
parties  hereto at any time prior to the Closing Date but only by an  instrument
in writing signed by the parties hereto.

         9.2 Waiver. At any time prior to the Closing Date, except to the extent
not  permitted  by  Applicable  Law,  ATS or Seller  may extend the time for the
performance  of any of the  obligations  or other  acts of the  other,  subject,
however,  to the  provisions  with respect to the  Termination  Date,  waive any
inaccuracies in the representations and warranties of the other contained herein
or in any document  delivered pursuant hereto, and waive compliance by the other
with any of the agreements,  covenants or conditions  contained herein. Any such
extension or waiver shall be valid only if set forth in an instrument in writing
signed by the party or parties to be bound thereby.

         9.3 Fees, Expenses and Other Payments.  All costs and expenses incurred
in connection  with any transfer  taxes,  sales taxes,  recording or documentary
taxes,  stamps or other charges levied by any Authority in connection  with this
Agreement and the  consummation  of the  Transactions  shall be borne equally by
Seller  and ATS.  All  costs of  preliminary  title  reports  for Real  Property
constituting a part of the Seller Assets shall be borne by Seller.  All costs of
title insurance and environmental studies shall be borne by ATS. All other costs
and expenses  incurred in connection with this Agreement and the consummation of
the Transactions,  including without limitation  Hart-Scott-Rodino  filing fees,
fees and disbursements of counsel,  financial advisors and accountants  incurred
by the parties hereto, shall be borne solely and entirely by the party which has
incurred such costs and expenses.

         9.4  Notices.  All  notices  and  other  communications  which  by  any
provision of this Agreement are required or permitted to be given shall be given
in  writing  and shall be (a)  mailed by  first-class  or  express  mail,  or by
recognized courier service,  postage prepaid, (b) sent by telecopy or other form
of rapid transmission,  confirmed by mailing (by first class or express mail, or
by  recognized  courier  service,   postage  prepaid)  written  confirmation  at
substantially  the  same  time as such  rapid  transmission,  or (c)  personally
delivered to the receiving party (which if other than an individual  shall be an
officer or other responsible party of the receiving party). All such notices and
communications shall be mailed, sent or delivered as follows:

         (a)      If to ATS:

                  116 Huntington Avenue
                  Boston, Massachusetts 02116
                  Attention:   Joseph L. Winn, Chief Financial Officer
                  Telecopier No.:  (617) 375-7575


                                      -28-


<PAGE>



                  with a copy to:

                  Sullivan & Worcester LLP
                  One Post Office Square
                  Boston, Massachusetts 02109
                  Attention:  Norman A. Bikales, Esq.
                  Telecopier No.:  (617) 338-2880

         (b)      If to Seller:

                  200 Cresson Boulevard
                  P.O. Box 989
                  Oaks, Pennsylvania 19456-0989
                  Attention: Samuel W. Morris, Jr., Vice President-General 
                                 Counsel
                  Telecopier No.:  (616) 650-3061

                  with a copy to:

                  Saul, Ewing, Remick & Saul
                  3800 Centre Square West
                  Philadelphia, Pennsylvania  19102
                  Attention: Thomas K. Pasch, Esq.
                  Telecopier No.: (215) 972-7725

or to such other person(s),  telex or facsimile  number(s) or address(es) as the
party to receive any such communication or notice may have designated by written
notice to the other party.

         9.5  Specific  Performance;  Other  Rights  and  Remedies.  Each  party
recognizes and agrees that in the event the other party should refuse to perform
any of its  obligations  under this  Agreement or any Collateral  Document,  the
remedy at law would be inadequate and agrees that for breach of such provisions,
each party shall,  in addition to such other  remedies as may be available to it
at law or in equity or as  provided  in Article  7, be  entitled  to  injunctive
relief and to enforce its rights by an action for  specific  performance  to the
extent permitted by Applicable Law. Each party hereby waives any requirement for
security  or the post ing of any bond or other  surety  in  connection  with any
temporary or permanent award of injunctive, mandatory or other equitable relief.
Nothing  herein  contained  shall be  construed as  prohibiting  each party from
pursuing any other  remedies  available to it pursuant to the provisions of, and
subject to the  limitations  contained  in,  this  Agreement  for such breach or
threatened breach.

         9.6  Severability.  If any term or provision of this Agreement shall be
held or deemed  to be, or shall in fact be,  invalid,  inoperative,  illegal  or
unenforceable  as  applied  to  any  particular  case  in  any  jurisdiction  or
jurisdictions,  or in  all  jurisdictions  or  in  all  cases,  because  of  the
conflicting of any provision with any  constitution or statute or rule of public
policy or for any other reason,  such circumstance  shall not have the effect of
rendering the provision or provisions in question invalid, inoperative,  illegal
or unenforceable in any other  jurisdiction or in any other case or circumstance
or of rendering any other  provision or  provisions  herein  contained  invalid,
inoperative,  illegal or  unenforceable to the extent that such other provisions
are not themselves actually in conflict with such constitution,  statute or rule
of public policy, but this Agreement shall be reformed and construed in any such
jurisdiction or case as if such invalid,  inoperative,  illegal or unenforceable
provision had never been contained herein and such provision reformed so that it
would be valid,  operative and  enforceable to the maximum  extent  permitted in
such jurisdiction or in such case.  Notwithstanding the foregoing,  in the event
of any such determination the effect of which is

                                      -29-


<PAGE>



to affect  materially and Adversely either party, the parties shall negotiate in
good faith to modify this  Agreement so as to effect the original  intent of the
parties as closely as possible to the fullest extent permitted by Applicable Law
in an  acceptable  manner to the end that the  Transactions  are  fulfilled  and
consummated to the maximum extent possible.

         9.7   Counterparts.   This   Agreement   may  be  executed  in  several
counterparts,  each of  which  shall be  deemed  an  original,  but all of which
together shall constitute one and the same  instrument,  binding upon all of the
parties. In pleading or proving any provision of this Agreement, it shall not be
necessary to produce more than one of such counterparts.

         9.8 Section Headings.  The headings contained in this Agreement are for
reference  purposes  only  and  shall  not in any  way  affect  the  meaning  or
interpretation of this Agreement.

         9.9  Governing  Law. The  validity,  interpretation,  construction  and
performance of this Agreement  shall be governed by, and construed in accordance
with,  the  applicable  laws of the United States of America and the laws of the
State of Delaware  applicable to contracts made and performed in such State and,
in any event,  without giving effect to any choice or conflict of laws provision
or rule that would cause the  application  of domestic  substantive  laws of any
other jurisdiction.

         9.10 Further Acts. Each party agrees that at any time, and from time to
time, before and after the consummation of the transactions contemplated by this
Agreement,  it  will do all  such  things  and  execute  and  deliver  all  such
Collateral  Documents  and other  assurances,  as any other party or its counsel
reasonably  deems  necessary  or  desirable  in order to carry out the terms and
conditions of this  Agreement  and the  transactions  contemplated  hereby or to
facilitate  the enjoyment of any of the rights  created  hereby or to be created
hereunder.

         9.11  Entire  Agreement.  This  Agreement  (together  with  the  Seller
Disclosure  Schedule and the other Collateral  Documents delivered in connection
herewith),  constitutes  the entire  agreement of the parties and supersedes all
prior agreements and undertakings,  both written and oral,  between the parties,
with respect to the subject matter hereof,  including  without  limitation  that
certain letter of intent, dated May 16, 1997, between the parties.

         9.12 Assignment. This Agreement shall not be assignable by either party
and any such  assignment  shall be null and void,  except that it shall inure to
the benefit of and by binding  upon any  successor  to any party by operation of
law,  including by way of merger,  consolidation or sale of all or substantially
all of its assets,  and ATS may assign its rights and remedies  hereunder to any
bank or other financial institution which has loaned funds or otherwise extended
credit to it.

         9.13  Parties in  Interest.  This  Agreement  shall be binding upon and
inure  solely to the  benefit of each  party,  and  nothing  in this  Agreement,
express or implied,  is  intended to or shall  confer upon any Person any right,
benefit or remedy of any nature whatsoever under or by reason of this Agreement,
except as otherwise provided in Section 9.12.

         9.14 Mutual Drafting. This Agreement is the result of the joint efforts
of Seller and ATS,  and each  provision  hereof  has been  subject to the mutual
consultation,  negotiation  and  agreement  of the parties and there shall be no
construction  against  either  party based on any  presumption  of that  party's
involvement in the drafting thereof.

         9.15 Consent.  Whenever this Agreement  affords to a party the right to
consent to any act or  request of  another,  such party  shall not  unreasonably
withhold, delay or condition such consent.

                                      -30-


<PAGE>



         IN WITNESS  WHEREOF,  ATS and Seller have caused this  Agreement  to be
executed  as of the  date  first  written  above by  their  respective  officers
thereunto duly authorized.

                          American Tower Systems, Inc.


                                      By:_____________________________________
                                           Name: James S. Eisenstein
                                           Title:   Chief Operating Officer

                          Suburban Cable TV Co. Inc.


                                      By:______________________________________
                                           Name: Harry F. Brooks
                                           Title:   Executive Vice President



                                      -31-


<PAGE>



                                                                      APPENDIX A

                                   DEFINITIONS

         As used in this Agreement,  unless the context otherwise requires,  the
following  capitalized  terms  (or any  variant  in the form  thereof)  have the
following  respective  meanings.  Terms  defined  in the  singular  shall have a
comparable meaning when used in the plural, and vice versa, and the reference to
any gender shall be deemed to include all genders.  Unless otherwise  defined or
the context otherwise  clearly  requires,  terms for which meanings are provided
herein shall have such meanings when used in the Seller Disclosure Schedule, and
each Collateral  Document executed or required to be executed pursuant hereto or
thereto or otherwise  delivered,  from time to time, pursuant hereto or thereto.
References  to "hereof",  "herein" or similar terms are intended to refer to the
Agreement  as a whole and not a  particular  Section,  and  references  to "this
Section"  are  intended  to refer to the  entire  Section  and not a  particular
subsection thereof.  The term "either party" shall, unless the context otherwise
requires, refer to Seller and ATS.

         Acceptance Notice shall have the meaning given to it in Section 2.2(c).

         Accounts Receivable shall mean (a) any and all rights to the payment of
money or other forms of  consideration  of any kind at any time now or hereafter
owing or to be owing to Seller attributable to the ownership or operation of the
Seller Business  (whether  classified  under the Uniform  Commercial Code of any
state as accounts,  contract  rights,  chattel  paper,  general  intangibles  or
otherwise),  including without limitation accounts receivable, letters of credit
and the right to receive payment thereunder,  chattel paper, insurance proceeds,
contract rights, notes, drafts,  instruments,  documents,  acceptances,  and all
other debts, obligations and liabilities in whatever form now or hereafter owing
from any other Person, all guarantees, security and Liens for the payment of any
thereof,  and all of Seller's rights to goods, now owned or hereafter  acquired,
sold (delivered,  undelivered,  in transit or returned) which may be represented
thereby; and (b) all proceeds of any of the foregoing.

         Adverse,  Adversely, when used alone or in conjunction with other terms
(including  without  limitation  "affect," "change" and "effect") shall mean any
Event  which is  reasonably  likely to (a)  adversely  affect  the  validity  or
enforceability  of this  Agreement  or the  likelihood  of  consummation  of the
Transactions,  or (b)  adversely  affect the business,  operations,  management,
properties or prospects,  or the financial  condition or results of operation of
the Seller  Business,  or (c) impair Seller's ability to fulfill its obligations
under the terms of this Agreement,  or (d) adversely affect the aggregate rights
and remedies of ATS under this  Agreement.  Notwithstanding  the foregoing,  and
anything in this Agreement to the contrary notwithstanding,  any Event generally
affecting the economy or the tower communications business or the video business
shall not be deemed to constitute such a change, affect or effect.

         Additional  Title Matter shall have the meaning  given to it in Section
5.7.

         Affiliate,  Affiliated shall mean, with respect to any Person,  (a) any
other Person at the time  directly or indirectly  controlling,  controlled by or
under direct or indirect  common control with such Person,  (b) any other Person
of which such Person at the time owns, or has the right to acquire,  directly or
indirectly,  twenty  percent  (20%) or more of any class of the capital stock or
beneficial  interest,  (c) any other Person  which at the time owns,  or has the
right to acquire,  directly or  indirectly,  twenty percent (20%) or more of any
class of the  capital  stock or  beneficial  interest  of such  Person,  (d) any
executive  officer  or  director  of  such  Person,  (e)  with  respect  to  any
partnership,  joint venture or similar Entity, any general partner thereof,  and
(f) when used with respect to an  individual,  shall  include any member of such
individual's  immediate family or a family trust;  provided,  however,  that for
purposes  of  this  Agreement,  Tele-Communications,  Inc.  and its  direct  and
indirect Subsidiaries shall not be treated as an Affiliate of Seller.

                                                     


<PAGE>



         Agreement shall mean this Agreement as originally in effect, including,
unless the context otherwise specifically requires,  this Appendix A, the Seller
Disclosure  Schedule  and all exhibits  hereto,  and as any of the same may from
time to time be supplemented, amended, modified or restated in the manner herein
or therein provided.

         Applicable Law shall mean any Law of any Authority, whether domestic or
foreign, including without limitation the FCA and Environmental Laws, to which a
Person is subject or by which it or any of its business or operations is subject
or any of its property or assets is bound.

         Approved Title  Conditions shall mean any one or more of the following:
(a) Liens for real  property  taxes and  assessments  not then  delinquent;  (b)
matters of title  approved  by ATS or deemed  approved  in  accordance  with the
provisions of Section 5.7; and (c) matters of title  created  following the date
of this Agreement by or with the written consent of ATS.

         Assets shall mean the business and the tangible and  intangible  assets
used in connection with the conduct of the Seller  Business,  which business and
assets  are  being  exchanged,  transferred  or  otherwise  conveyed  hereunder,
including without including without limitation the following:

                  (a) the Personal Property;

                  (b) the Real Property;

                  (c) the Governmental Authorizations;

                  (d) the Private Authorizations;

                  (e)  the   Contracts   (other   than  the  Seller   Nonassumed
         Obligations);

                  (f)  all   Intellectual   Property   and   other   proprietary
         information,  which relate to the Seller  Business,  including  without
         limitation,  technical  information  and data,  machinery and equipment
         warranties, maps, computer discs and tapes, plans, diagrams, blueprints
         and schematics,  including filings with all Authorities which relate to
         the Seller Business;

                  (g) all claims,  choses in action and rights under  warranties
         relating to the Seller Business or any of the Seller Assets;

                  (h)  all  books  and  records  relating  to the  ownership  or
         operation of the Seller  Assets or the conduct of the Seller  Business,
         including  executed  copies of Leases,  Material  Agreements  and other
         written  Contracts,  and all records  required by Applicable  Law to be
         kept,  subject to the right of the  conveying  party to have such books
         and records  made  available  to it for such time as may be  reasonably
         required in connection with audits, defense or prosecution of lawsuits,
         or other legitimate  business  purposes.  The records  described herein
         shall not  include  corporate  seals,  certificates  of  incorporation,
         minute books,  stock books,  tax returns or other records  having to do
         with the corporate organization of Seller; and

                  (i)  any  and all  products,  profits  and  proceeds  of,  and
         including  without  limitation  any Claims with  respect to, any of the
         foregoing;

provided, however, that notwithstanding the foregoing, the term Assets shall not
include any of the Excluded Assets.

                                       A-2


<PAGE>



         ATS shall have the meaning given to it in the Preamble.

         ATS' Environmental Notice shall have the meaning given to it in Section
5.8.

         ATS'  Noncompetition  Agreements  shall have the meaning given to it in
Section 6.2(j).

         ATS' Title Notice shall have the meaning given to it in Section 5.7.

         Authority shall mean any governmental or quasi-governmental  authority,
whether  administrative,  executive,  judicial,  legislative  or  other,  or any
combination   thereof,   including  without   limitation  any  federal,   state,
territorial,   county,   municipal  or  other   government  or  governmental  or
quasi-governmental agency, arbitrator,  authority,  board, body, branch, bureau,
central bank or comparable  agency or Entity,  commission,  corporation,  court,
department,  instrumentality,  master, mediator, panel, referee, system or other
political unit or  subdivision or other Entity of any of the foregoing,  whether
domestic or foreign., including without limitation the FCC.

         Benefit Arrangement shall mean any material benefit arrangement that is
not a Plan,  including  (a)  any  employment  or  consulting  agreement  (b) any
arrangement providing for insurance coverage or workers' compensation  benefits,
(c) any  incentive  bonus or deferred  bonus  arrangement,  (d) any  arrangement
providing termination  allowance,  severance or similar benefits, (e) any equity
compensation plan, (f) any deferred  compensation plan, and (g) any compensation
policy and  practice,  but only to the  extent  that it covers or relates to any
officer, employee or other Person involved in the ownership and operation of the
Assets or the conduct of the business of the Seller Business.

         CEA shall have the meaning given to it in Section 3.12.

         Claims shall mean any and all debts, liabilities,  obligations, losses,
damages,  deficiencies,  assessments  and  penalties,  together  with all  Legal
Actions, pending or threatened, claims and judgments of whatever kind and nature
relating  thereto,  and all fees, costs,  expenses and disbursements  (including
without  limitation  reasonable  attorneys'  and  other  legal  fees,  costs and
expenses) relating to any of the foregoing.

         Closing shall have the meaning given to it in Section 2.3.

         Closing Date shall have the meaning given to it in Section 2.3.

         COBRA shall mean the Consolidated Omnibus Budget  Reconciliation Act of
1985,  as  amended,  as set  forth  in  Section  4980B of the Code and Part 6 of
Subtitle B of Title I of ERISA.

         Code shall mean the Internal  Revenue  Code of 1986,  and the rules and
regulations  thereunder,  all as from time to time in effect,  or any  successor
law,  rules or  regulations,  and any  reference to any  statutory or regulatory
provision  shall be deemed  to be a  reference  to any  successor  statutory  or
regulatory provision.

         Collateral  Documents shall mean the Collateral Real Estate  Documents,
the  ATS  Noncompetition  Agreements,  the  Nonassignable  Contracts  Agreement,
warranty deeds, bills of sale, assignments of intangibles, assumption agreements
with respect to the Seller Assumed Obligations,  other instruments of conveyance
and assignment sufficient to vest in ATS title to all of the other Seller Assets
and  the  Seller  Business,  and any  other  agreement,  certificate,  contract,
instrument,  notice,  opinion  or  other  document  delivered  pursuant  to  the
provisions of this Agreement or any Collateral Document.

         Collateral Real Estate  Documents shall have the meaning given to it in
Section 6.2(m).

                                       A-3


<PAGE>



         Collection Period shall have the meaning given to it in Section 2.4.

         Contract, Contractual Obligation shall mean any agreement, arrangement,
commitment,  contract, covenant,  indemnity,  undertaking or other obligation or
liability  which involves the ownership or operation of the Seller Assets or the
conduct of the Seller Business.

         Control (including the terms  "controlled,"  "controlled by" and "under
common control with") means the possession, directly or indirectly or as trustee
or executor,  of the power to direct or cause the direction of the management or
policies of a Person,  or the disposition of such Person's assets or properties,
whether through the ownership of stock, equity or other ownership,  by contract,
arrangement or understanding,  or as trustee or executor,  by contract or credit
arrangement or otherwise.

         Disapproved  Cost Amount shall have the meaning  given to it in Section
5.9.

         Disapproved  Environment  Sites shall have the  meaning  given to it in
Section 5.8.

         Disapproved Sites shall have the meaning given to it in Section 5.7.

         Disapproved  Title Sites shall have the meaning  given to it in Section
5.7.

         Employment   Arrangement  shall  mean,  with  respect  to  Seller,  any
employment,  consulting,  retainer,  severance or similar  contract,  agreement,
plan,  arrangement or policy (exclusive of any which is terminable within thirty
(30) days  without  liability,  penalty  or payment of any kind by Seller or any
Affiliate), or providing for severance, termination payments, insurance coverage
(including any  self-insured  arrangements),  workers  compensation,  disability
benefits,   life,  health,   medical,   dental  or   hospitalization   benefits,
supplemental unemployment benefits,  vacation or sick leave benefits, pension or
retirement benefits or for deferred compensation, profit-sharing, bonuses, stock
options,  stock  purchase or  appreciation  rights or other  forms of  incentive
compensation  or  post-retirement  insurance,  compensation  or  post-retirement
insurance, compensation or benefits, or any collective bargaining or other labor
agreement,  whether or not any of the foregoing is subject to the  provisions of
ERISA, but only to the extent that it covers or relates to any officer, employee
or other Person  involved in the  ownership or operation of the Seller Assets or
the conduct of the Seller Business.

         Encumber  shall  mean  to  suffer,  accept,  agree  to  or  permit  the
imposition of a Lien.

         Entity shall mean any corporation,  firm, unincorporated  organization,
association,  partnership,  limited  liability  company,  trust  (inter vivos or
testamentary),  business  trust,  joint stock  company,  joint  venture or other
organization,  entity or business, whether acting in an individual, fiduciary or
other capacity, or any Authority.

         Environmental  Company  shall have the  meaning  given to it in Section
5.8.

         Environmental Law shall mean any Law relating to or otherwise  imposing
liability or  standards of conduct  concerning  pollution or  protection  of the
environment,   including   without   limitation   Laws  relating  to  emissions,
discharges,  releases or  threatened  releases of  Hazardous  Materials or other
chemicals or  industrial  pollutants,  substances,  materials or wastes into the
environment (including,  without limitation,  ambient air, surface water, ground
water,  mining or reclamation or mined land, land surface or subsurface  strata)
or otherwise relating to the manufacture,  processing, generation, distribution,
use, treatment, storage, disposal, cleanup, transport or handling of pollutants,
contaminants,  chemicals or industrial, toxic or hazardous substances, materials
or wastes. Environmental Laws shall include without limitation the

                                       A-4


<PAGE>



Comprehensive Environmental Response,  Compensation and Liability Act (42 U.S.C.
Section 6901 et seq.),  the  Hazardous  Material  Transportation  Act (49 U.S.C.
Section  1801 et seq.),  the Resource  Conservation  and Recovery Act (42 U.S.C.
Section  6901 et seq.),  the  Federal  Water  Pollution  Control  Act (33 U.S.C.
Section 1251 et seq.),  the Clean Air Act (42 U.S.C.  Section 7401 et seq.), the
Toxic Substances Control Act (15 U.S.C.  Section 2601 et seq.), the Occupational
Safety and Health Act (29 U.S.C.  Section 651 et seq.), the Federal  Insecticide
Fungicide and  Rodenticide Act (7 U.S.C.  Section 136 et seq.),  and the Surface
Mining Control and Reclamation Act of 1977 (30 U.S.C. Section 1201 et seq.), and
any  analogous  federal,  state,  local or  foreign,  Laws,  and the  rules  and
regulations  promulgated  thereunder all as from time to time in effect, and any
reference  to any  statutory  or  regulatory  provision  shall be deemed to be a
reference to any successor statutory or regulatory provision.

         Environmental Permit shall mean any Governmental Authorization required
by or pursuant to any Environmental Law.

         Environmental  Reports  shall have the  meaning  given to it in Section
5.8.

         ERISA shall mean the Employee  Retirement  Income Security Act of 1974,
and the rules and regulations thereunder, all as from time to time in effect, or
any successor law, rules or  regulations,  and any reference to any statutory or
regulatory  provision  shall  be  deemed  to be a  reference  to  any  successor
statutory or regulatory provision.

         ERISA  Affiliate  shall  mean any  Person  that is  treated as a single
employer  with Seller  under  Sections  414(b),  (c),  (m) or (o) of the Code or
Section 4001(b)(1) of ERISA.

         Event  shall  mean the  existence  or  occurrence  of any act,  action,
activity,  circumstance,  condition,  event,  fact,  failure  to act,  omission,
incident or practice, or any set or combination of any of the foregoing.

         Exchange Act shall mean the  Securities  Exchange Act of 1934,  and the
rules and  regulations  thereunder,  all as from time to time in effect,  or any
successor  law,  rules or  regulations,  and any  reference to any  statutory or
regulatory  provision  shall  be  deemed  to be a  reference  to  any  successor
statutory or regulatory provision.

         Excluded Assets shall have the meaning given to it in Section 2.1.

         FCA  shall  mean the  Communication  Act of  1934,  and the  rules  and
regulations  thereunder,  all as from time to time in effect,  or any  successor
law,  rules or  regulations,  and any  reference to any  statutory or regulatory
provision  shall be deemed  to be a  reference  to any  successor  statutory  or
regulatory provision.

         FCC shall mean the Federal Communications  Commission and shall include
any successor Authority.

         Final  Order  shall  mean,  with  respect to any  Authority,  including
without  limitation  the FCC, one with respect to which no appeal,  no stay,  no
petition or application for rehearing, reconsideration,  review or stay, whether
on motion of the applicable Authority or other Person or otherwise, and no other
Legal Action contesting such consent or approval, is in effect or pending and as
to  which  the  time or  deadline  for  filing  any  such  appeal,  petition  or
application  or other Legal  Action has expired or, if filed,  has been  denied,
dismissed or  withdrawn,  and the time or deadline for  instituting  any further
Legal Action has expired.

         GAAP shall mean means,  except to the extent that a deviation therefrom
is expressly required by this Agreement, such principles applied on a consistent
basis,  (i) as set forth in Opinions of the Accounting  Principles  Board of the
American  Institute  of  Certified  Public   Accountants   ("AICPA")  and/or  in
statements

                                       A-5


<PAGE>



of  the  Financial  Accounting  Standards  Board  that  are  applicable  in  the
circumstances as of the date in question,  (ii) when not inconsistent  with such
opinions and statements, as set forth in other AICPA publications and guidelines
and/or (iii) that otherwise arise by custom for the particular industry,  all as
the same shall exist on the date of this Agreement.

         Governmental  Authorizations  shall  mean all  approvals,  concessions,
consents,   franchises,   licenses,  permits,  plans,  registrations  and  other
authorizations  of all  Authorities,  including  without  limitation the Federal
Aviation  Administration,  in connection  with the ownership or operation of the
Seller Assets or the conduct of the Seller Business.

         Governmental  Filings shall mean all filings,  including  franchise and
similar Tax  filings,  and the payment of all fees,  assessments,  interest  and
penalties associated with such filings, with all Authorities.

         Hart-Scott-Rodino Act shall mean the Hart-Scott-Rodino  Improvement Act
of 1976, as from time to time in effect, or any successor law, and any reference
to any  statutory  provision  shall be deemed to be a reference to any successor
statutory provision.

         Hazardous  Materials  shall mean and include any  substance,  material,
waste, constituent, compound, chemical, natural or man-made element or force (in
whatever state of matter):  (a) the presence of which requires  investigation or
remediation under any Environmental  Law, or (b) that is defined as a "hazardous
waste" or  "hazardous  substance"  under any  Environmental  Law; or (c) that is
toxic, explosive,  corrosive,  etiologic,  flammable,  infectious,  radioactive,
carcinogenic,   mutagenic  or  otherwise  hazardous  and  is  regulated  by  any
applicable Authority or subject to any Environmental Law.

         Indebtedness  shall mean,  with  respect to any Person,  (a) all items,
except  items of  capital  stock or of  surplus  or of  general  contingency  or
deferred tax reserves or any minority  interest in any Subsidiary of such Person
to the extent such interest is treated as a liability with indeterminate term on
the  consolidated  balance sheet of such Person,  which in accordance  with GAAP
would be included in  determining  total  liabilities  as shown on the liability
side of a balance sheet of such Person, (b) all obligations  secured by any Lien
to which any property or asset owned or held by such Person is subject,  whether
or not the obligation  secured  thereby shall have been assumed,  and (c) to the
extent not  otherwise  included,  all  Contractual  Obligations  of such  Person
constituting  capitalized leases and all obligations of such Person with respect
to Leases constituting part of a sale and leaseback arrangement.

         Indebtedness  for Money  Borrowed  shall mean,  with respect to Seller,
money borrowed and Indebtedness represented by notes payable and drafts accepted
representing   extensions  of  credit,  all  obligations   evidenced  by  bonds,
debentures,  notes or other similar instruments, the maximum amount currently or
at any time thereafter  available to be drawn under all  outstanding  letters of
credit  issued  for the  account of such  Person,  all  Indebtedness  upon which
interest  charges are  customarily  paid by such  Person,  and all  Indebtedness
(including  capitalized lease obligations)  issued or assumed as full or partial
payment  for  property  or  services,  whether  or not any such  notes,  drafts,
obligations or Indebtedness represent Indebtedness for money borrowed, but shall
not include (a) trade payables,  (b) expenses  accrued in the ordinary course of
business,  (c) customer advance payments and customer  deposits  received in the
ordinary course of business,  or (d) conditional sales agreements not prohibited
by the terms of this Agreement.

         Insured  Real  Property  shall have the meaning  given to it in Section
5.7.

         Intangible  Assets shall mean all assets and property  lacking physical
properties the evidence of ownership of which must  customarily be maintained by
independent  registration,  documentation,  certification,  recordation or other
means, and shall include, without limitation, concessions, copyrights,

                                       A-6


<PAGE>



franchises,  license, patents, permits, service marks, trademarks,  trade names,
and applications with respect to any of the foregoing, technology and know-how.

         Intellectual  Property  shall mean any and all  research,  information,
inventions,  designs,  procedures,  developments,   discoveries,   improvements,
patents and applications therefor, trademarks and applications therefor, service
marks,  trade names (including  without  limitation  MicroNet and all variations
thereof),  copyrights and applications therefor,  logos, trade secrets, drawing,
plans,  systems,  methods,  specifications,  computer software programs,  tapes,
discs and related data processing  software (including without limitation object
and source codes) owned by such Person or in which it has an ownership  interest
and all other manufacturing,  engineering,  technical,  research and development
data and know-how made,  conceived,  developed  and/or  acquired by such Person,
which  relate to the  manufacture,  production  or  processing  of any  products
developed  or sold by such  Person or which are within the scope of or usable in
connection with such Person's  business as it may, from time to time,  hereafter
be conducted or proposed to be conducted.

         Law shall mean any (a) administrative,  judicial,  legislative or other
action,  code,  consent  decree,  constitution,  decree,  directive,  enactment,
finding, guideline, law, injunction, interpretation, judgment, order, ordinance,
policy statement,  proclamation,  promulgation,  regulation,  requirement, rule,
rule of law, rule of public policy,  settlement  agreement,  statute, or writ of
any  Authority,  domestic  or  foreign;  (b) the common  law,  or other legal or
quasi-legal  precedent;  or (c)  arbitrator's,  mediator's  or referee's  award,
decision,  finding or recommendation;  including, in each such case or instance,
any interpretation,  directive,  guideline or request, whether or not having the
force of law including, in all cases, without limitation any particular section,
part or provision thereof.

         Lease  shall mean any lease of  property,  whether  real,  personal  or
mixed, and all amendments thereto.

         Legal  Action  shall  mean,  with  respect to any  Person,  any and all
litigation   or   legal   or   other   actions,   arbitrations,   counterclaims,
investigations,  proceedings  or  suits,  at law or in  arbitration,  equity  or
admiralty,  whether or not  purported  to be  brought on behalf of such  Person,
affecting such Person or any of such Person's business, property or assets.

         Lien shall mean any of the  following:  mortgage;  lien  (statutory  or
other);  or other security  agreement,  arrangement or interest;  hypothecation,
pledge  or  other  deposit  arrangement;  assignment;  charge;  levy;  executory
seizure;   attachment;   garnishment;   encumbrance   (including  any  easement,
exception,  reservation or limitation,  right of way, and the like); conditional
sale,  title  retention  or other  similar  agreement,  arrangement,  device  or
restriction;   preemptive  or  similar  right;  any  financing  lease  involving
substantially  the same economic  effect as any of the foregoing;  the filing of
any financing  statement under the Uniform  Commercial Code or comparable law of
any  jurisdiction;  restriction on sale,  transfer,  assignment,  disposition or
other alienation; or any option, equity, claim or right of or obligation to, any
other Person, of whatever kind and character.

         Loss and Expense shall have the meaning given to it in Section 8.2.

         Material  Agreement shall mean, with respect to Seller, any Contractual
Obligation  which (a) was not entered into in the  ordinary  course of business,
(b) was entered into in the ordinary  course of business  which (i) involved the
purchase,  sale or lease  of  goods  or  materials,  or  purchase  of  services,
aggregating more than $50,000 during the last fiscal year, (ii) extends for more
than three (3) months,  or (iii) is not  terminable  on thirty (30) days or less
notice  without  penalty or other  payment,  (c)  involves a  capitalized  lease
obligation (d) is or otherwise  constitutes a written  agency,  broker,  dealer,
license, distributorship, sales representative or similar written agreement, (e)
accounted  for more  than  three  percent  (3%) of the  revenues  of the  Seller
Business  in the last year or is likely to account  for more than three  percent
(3%) of revenues of the Seller

                                       A-7


<PAGE>



Business  during the current  fiscal year,  (f) is with the United States Forest
Service or any other Authority,  or (g) involves the management by Seller of any
communication tower of any other Person.

         Maximum  Disapproved  Cost Amount shall have the meaning given to it in
Section 5.9.

         Maximum Site Disapproved Cost Amount shall have the meaning given to it
in Section 5.9.

         MicroNet L.P. shall mean MicroNet Delmarva Associates, L.P., a Delaware
limited partnership.

         Multiemployer  Plan shall mean a Plan which is a  "multiemployer  plan"
within the meaning of Section 4001(a)3 of ERISA.

         Nonassignable  Contracts  shall have the meaning given to it in Section
2.2(c).

         Nonassignable Contracts Agreement shall have the meaning given to it in
Section 2.2(c).

         Organic  Document  shall  mean,  with  respect  to a Person  which is a
corporation,  its charter,  its by-laws and all shareholder  agreements,  voting
trusts and similar arrangements applicable to any of its capital stock and, with
respect to a Person which is a  partnership,  its agreement and  certificate  of
partnership,  any  agreements  among  partners,  and any  management and similar
agreements  between the partnership  and any general  partners (or any Affiliate
thereof).

         PBGC shall mean the Pension Benefit Guaranty Corporation and any Entity
succeeding to any or all of its functions under ERISA.

         Permitted  Liens shall mean (a) Liens for current taxes not yet due and
payable, (b) such imperfections of title, easements,  encumbrances and mortgages
or  other  Liens,  if  any,  as  are  not,  individually  or in  the  aggregate,
substantial in character,  amount or extent and do not  materially  detract from
the value, or materially interfere with the present use, of the property subject
thereto or affected thereby,  or otherwise  materially impair the conduct of the
Seller Business,  and (c) such other Liens as are permitted by the provisions of
this Agreement to be in place on the Closing Date.

         Person shall mean any natural individual or any Entity.

         Personal  Property shall mean all of the machinery,  equipment,  tools,
vehicles, furniture, leasehold improvements, office equipment, plant, inventory,
spare parts and other  tangible  personal  property which are owned or leased by
Seller or any Seller Subsidiary and used as of the date hereof in the conduct of
the Seller Business, plus such additions thereto and deletions therefrom arising
in the ordinary course of business between the date hereof and the Closing Date.

         Plan shall mean,  with respect to any Person and at a particular  time,
any employee benefit plan which is covered by ERISA and in respect of which such
Person or an ERISA  Affiliate is (or, if such plan were terminated at such time,
would under  Section 4069 of ERISA be deemed to be) an  "employer" as defined in
Section  3(5) of ERISA,  but only to the extent that it covers or relates to any
officer, employee or other Person involved in the ownership and operation of the
Assets or the conduct of the business of the Seller Business.

         Prepaid Expense shall mean any item which in accordance with GAAP would
be treated as an expense and which has been paid by Seller  prior to the Closing
and relates to a period subsequent to the Closing.


                                       A-8


<PAGE>



         Prepaid Revenue shall mean any item which in accordance with GAAP would
be treated as revenue and which has been received by Seller prior to the Closing
and relates to a period subsequent to the Closing.

         Private Authorizations shall mean all approvals, concessions, consents,
franchises,  licenses,  permits,  and other authorizations of all Persons (other
than   Authorities)   including   without   limitation  those  with  respect  to
Intellectual  Property  relating to the  ownership  or  operation  of the Seller
Assets or the conduct of the Seller Business.

         Pro Ratable Taxes shall mean real estate and other property  Taxes,  ad
valorem Taxes,  gross  receipts  Taxes and similar Taxes,  but shall not include
federal, state or local income Taxes, franchise Taxes or other Taxes measured by
or based upon income or gain on sale or other disposition of property or assets.

         Purchase Price shall have the meaning given to it in Section 2.3.

         Real Property shall mean all of the fee estates and buildings and other
fixtures and improvements  thereon,  leasehold  interest,  easements,  licenses,
rights to access,  right-of-  way, and other real  property  interest  which are
owned or used by Seller or any Seller  Subsidiary  as of the date  hereof in the
conduct  of the Seller  Business,  plus such  additions  thereto  and  deletions
therefrom arising in the ordinary course of business between the date hereof and
the Closing Date.

         Regulations  shall mean the federal income tax regulations  promulgated
under  the Code,  as such  Regulations  may be  amended  from time to time.  All
references  herein to specific  sections of the Regulations shall be deemed also
to refer to any  corresponding  provisions  of succeeding  Regulations,  and all
references  to  temporary  Regulations  shall  be  deemed  also to  refer to any
corresponding provisions of final Regulations.

         Representatives shall have the meaning given to it in Section 5.1(a).

         Securities Act shall mean the Securities Act of 1933, and the rules and
regulations  thereunder,  all as from time to time in effect,  or any  successor
law,  rules or  regulations,  and any  reference to any  statutory or regulatory
provision  shall be deemed  to be a  reference  to any  successor  statutory  or
regulatory provision.

         Seller shall have the meaning given to it in the Preamble.

         Seller  Accounts  Receivable  shall  have  the  meaning  given to it in
Section 2.4.

         Seller Assets shall have the meaning given to it in Section 2.1.

         Seller Assumable  Agreements shall mean all obligations and liabilities
of Seller under all Leases,  Material Agreements,  Governmental  Authorizations,
Private  Authorizations  and other  Contractual  Obligations  not required to be
listed on Section  3.15 of the Seller  Disclosure  Schedule  entered into in the
ordinary course of business and relating to the ownership or operation of any of
the Seller Assets or the
conduct of the Seller Business.

         Seller  Assumed  Liabilities  shall  have  the  meaning  given to it in
Section 2.2(b).

         Seller  Business shall have the meaning given them in the first Whereas
paragraph.

         Seller Disclosure  Schedule shall mean the Seller  Disclosure  Schedule
dated as of the date of this Agreement delivered by Seller to ATS.


                                       A-9


<PAGE>



         Seller Employees shall have the meaning given it in the Section 3.14.

         Seller  Financial  Statements  shall  have the  meaning  given to it in
Section 3.2(b).

         Seller  Nonassumed  Obligations  shall have the meaning  given to it in
Section 2.2(b).

         Seller Subsidiaries shall mean, collectively, Lenfest Atlantic, Inc., a
New  Jersey  corporation,  MicroNet,  Inc.,  a  Delaware  corporation,  MicroNet
Diversified Investments, Inc., a Delaware corporation,  MicroNet Delmarva, Inc.,
a Delaware  corporation,  MicroNet,  L.P, a Delaware  limited  partnership,  and
Lenfest New Castle County, a Delaware general partnership.

         Seller's  Environmental  Notice  shall have the meaning  given to it in
Section 5.8.

         Seller's  knowledge means the actual knowledge of any Seller officer or
senior  manager,  as such knowledge  exists on the date of this Agreement and no
later date, after reasonable review of appropriate Seller records.

         Seller's  Title  Notice  shall have the meaning  given to it in Section
5.7.

         Settlement Proposal shall have the meaning given to it in Section 8.5.

         Subsidiary shall mean, with respect to a Person,  any Entity a majority
of the capital stock  ordinarily  entitled to vote for the election of directors
of which,  or if no such voting stock is  outstanding,  a majority of the equity
interests of which, is owned directly or indirectly, legally or beneficially, by
such Person or any other Person Controlled by such Person.

         Tax (and "Taxable",  which shall mean subject to Tax), shall mean, with
respect to any Person,  (a) all taxes (domestic or foreign),  including  without
limitation any income (net, gross or other including  recapture of any tax items
such as  investment  tax  credits),  alternative  or add-on  minimum tax,  gross
income,  gross receipts,  gains,  sales, use, leasing,  lease, user, ad valorem,
transfer, recording, franchise, profits, property (real or personal, tangible or
intangible),  fuel,  license,  withholding on amounts paid to or by such Person,
payroll,  employment,  unemployment,  social security, excise, severance, stamp,
occupation, premium, environmental or windfall profit tax, custom, duty or other
tax, or other like  assessment or charge of any kind  whatsoever,  together with
any  interest,  levies,  assessments,  charges,  penalties,  addition  to tax or
additional  amount  imposed  by any Taxing  Authority,  (b) any joint or several
liability of such Person with any other Person for the payment of any amounts of
the type  described in (a), and (c) any liability of such Person for the payment
of any  amounts  of the type  described  in (a) as a result  of any  express  or
implied obligation to indemnify any other Person.

         Tax  Allocation  Schedule shall have the meaning given to it in Section
2.3.

         Tax  Claim  shall  mean any Claim  which  relates  to Taxes,  including
without limitation the representations and warranties set forth in Section 3.11.

         Tax Return or Returns shall mean all returns, consolidated or otherwise
(including without limitation  information  returns),  required to be filed with
any Authority with respect to Taxes.

         Taxing   Authority  shall  mean  any  Authority   responsible  for  the
imposition of any Tax.

         Title Company shall have the meaning given to it in Section 5.7.

                                      A-10


<PAGE>


         Title Reports shall have the meaning given to it in Section 5.7.

         Termination Date shall have the meaning given to it in Section 7.1.

         Transactions shall mean the transactions contemplated to be consummated
on or prior to the Closing Date,  including without  limitation the purchase and
sale of the Seller Assets and the Seller  Business and the  execution,  delivery
and performance of the Collateral Documents.






                                      A-11




                                                                   EXHIBIT 10.16













                            ASSET PURCHASE AGREEMENT

                                 By and Between

                          AMERICAN TOWER SYSTEMS, INC.

                              DB CONSULTANTS, INC.

                                   Dated as of

                                  May 21, 1997












<PAGE>




<TABLE>
                                TABLE OF CONTENTS

<S>               <C>                                                                                            <C>
ARTICLE 1         DEFINED TERMS...................................................................................1

ARTICLE 2         SALE AND PURCHASE OF ASSETS.....................................................................1
                  2.1      Agreement to Sell and Buy..............................................................1
                  2.2      Assumption of Liabilities and Obligations. ............................................1
                  2.3      Closing; Purchase Price................................................................3
                  2.4      Accounts Receivable....................................................................3

ARTICLE 3         REPRESENTATIONS AND WARRANTIES OF DBC...........................................................4
                  3.1      Organization and Business; Power and Authority; Effect of Transaction..................4
                  3.2      Financial and Other Information.  .....................................................5
                  3.3      Changes in Condition...................................................................5
                  3.4      Materiality............................................................................5
                  3.5      Title to Properties; Leases............................................................5
                  3.6      Compliance with Private Authorizations.................................................5
                  3.7      Compliance with Governmental Authorizations and Applicable Law.........................6
                  3.8      Intangible Assets......................................................................7
                  3.9      Related Transactions...................................................................7
                  3.10     Solvency...............................................................................7
                  3.12     Employee Retirement Income Security Act of 1974........................................7
                  3.13     Absence of Sensitive Payments..........................................................7
                  3.14     Inapplicability of Specified Statutes..................................................8
                  3.15     Employment Arrangements................................................................8
                  3.16     Material Agreements....................................................................8
                  3.17     Ordinary Course of Business............................................................8
                  3.18     Broker or Finder.......................................................................9

ARTICLE 4         REPRESENTATIONS AND WARRANTIES OF ATS...........................................................9
                  4.1      Organization and Business; Power and Authority; Effect of Transaction..................9
                  4.2      Broker or Finder......................................................................10
                  4.3      Solvency..............................................................................10
                  4.4      No Legal Action.......................................................................10

ARTICLE 5         CLOSING CONDITIONS.............................................................................10
                  5.1      Conditions to Obligations of Each Party to effect the Transactions....................10
                  5.2      Conditions to Obligations of ATS......................................................11
                  5.3      Conditions to Obligations of DBC......................................................12

ARTICLE 6         INDEMNIFICATION................................................................................12
                  6.1      Survival..............................................................................12
                  6.2      Indemnification.......................................................................12
                  6.3      Limitation of Liability...............................................................13
                  6.4      Notice of Claims......................................................................13
                  6.5      Defense of Third Party Claims.........................................................14
                  6.6      Exclusive Remedy......................................................................14

ARTICLE 7         GENERAL PROVISIONS.............................................................................14
                  7.1      Amendment.............................................................................14
                  7.2      Waiver................................................................................14

                                       

<PAGE>



                  7.3      Fees, Expenses and Other Payments.....................................................14
                  7.4      Notices...............................................................................14
                  7.5      Specific Performance; Other Rights and Remedies.......................................15
                  7.6      Severability..........................................................................16
                  7.7      Counterparts..........................................................................16
                  7.8      Section Headings......................................................................16
                  7.9      Governing Law.........................................................................16
                  7.10     Further Acts..........................................................................16
                  7.11     Entire Agreement......................................................................17
                  7.12     Assignment............................................................................17
                  7.13     Parties in Interest...................................................................17
                  7.14     Arbitration...........................................................................17
                  7.15     Mutual Drafting.......................................................................17
</TABLE>


APPENDIX A:       Definitions

SCHEDULES:        DBC Disclosure Schedule






                                      -ii-

<PAGE>




                            ASSET PURCHASE AGREEMENT

         This Asset Purchase Agreement (this "Agreement") is dated as of May 21,
1997 by and  between  American  Tower  Systems,  Inc.,  a  Delaware  corporation
("ATS"), and DB Consultants, Inc., a Texas corporation ("DBC").

         WHEREAS, DBC is engaged in the business of identifying and locating and
managing communication sites for third parties (the "DBC Business"); and

         WHEREAS, ATS desires to purchase and DBC desires to sell the DBC Assets
and the DBC Business on the terms and conditions hereinafter set forth;

         NOW,  THEREFORE,  in  consideration  of  the  above  premises  and  the
covenants and agreements contained herein, the parties,  intending to be legally
bound, do hereby covenant and agree as follows:


                                    ARTICLE 1

                                  DEFINED TERMS

         As used  herein,  unless  the  context  otherwise  requires,  the terms
defined in  Appendix A shall have the  respective  meanings  set forth  therein.
Terms defined in the singular  shall have a comparable  meaning when used in the
plural,  and vice  versa,  and the  reference  to any gender  shall be deemed to
include all genders.  Unless otherwise  defined or the context otherwise clearly
requires,  terms for which  meanings are provided in this  Agreement  shall have
such  meanings  when used in the DBC  Disclosure  Schedule  and each  Collateral
Document  executed  or required  to be  executed  pursuant  hereto or thereto or
otherwise delivered,  from time to time, pursuant hereto or thereto.  References
to "hereof", "herein" or similar terms are intended to refer to the Agreement as
a whole and not a  particular  Section,  and  references  to "this  Section" are
intended to refer to the entire Section and not a particular subsection thereof.
The term "either party" shall, unless the context otherwise  requires,  refer to
DBC and ATS.


                                    ARTICLE 2

                           SALE AND PURCHASE OF ASSETS

         2.1 Agreement to Sell and Buy.  Subject to the terms and conditions set
forth in this Agreement, DBC hereby agrees to sell, assign, transfer and deliver
to ATS at the Closing, and ATS agrees to purchase at the Closing, the DBC Assets
and the DBC  Business,  free and  clear of any  Liens of any  nature  whatsoever
except for  Permitted  Liens.  For  purposes  of this  Agreement,  the term "DBC
Assets" shall mean all of the Assets of DBC set forth on Schedule 2.1 of the DBC
Disclosure Schedule.

         2.2      Assumption of Liabilities and Obligations.

         (a) At the Closing,  ATS shall assume and agree to pay,  discharge  and
perform the following obligations and liabilities of DBC (collectively, the "DBC
Assumed  Obligations"):  (i) all of the obligations and liabilities of DBC under
the DBC Assumable  Agreements,  and (ii) all  obligations and liabilities of DBC
with respect to the ownership and operation of the DBC Assets and the conduct of
the DBC Business, on and

                                                     


<PAGE>



after the Closing Date; provided,  however,  that notwithstanding the foregoing,
ATS shall not assume and agree to pay, and shall not be  obligated  with respect
to, the DBC Nonassumed Obligations.

         (b) ATS shall  not  assume or become  obligated  to  perform  any debt,
liability  or  obligation  of DBC  relating  to any  of  the  following  matters
(collectively, the "DBC Nonassumed Obligations"):

                  (i)  the  ownership  or  operation  of the DBC  Assets  or the
         conduct  of the DBC  Business  prior  to the  Closing  Date,  including
         without  limitation  Taxes,  unfunded  pension  costs,  any  Employment
         Arrangement of DBC (including  without limitation any obligation to any
         DBC Employee for severance benefits,  vacation time or sick leave), and
         any of the  following  to the extent same arise from  Events  occurring
         prior to or existing on the Closing  Date:  products  liability,  Legal
         Actions or other Claims,  and obligations  and liabilities  relating to
         Environmental Law;

                  (ii) any  obligations or  liabilities  under the DBC Assumable
         Agreements relating to the period prior to the Closing;

                  (iii)  any insurance policies of DBC;

                  (iv) those  required  to be  disclosed  in the DBC  Disclosure
         Schedule  which are not so disclosed or which,  if  disclosed,  Section
         2.2(b)(iv)  of  the  DBC  Disclosure   Schedule   indicates  that  such
         obligation or liability will not be assumed;

                  (v) any liability or obligation  from or relating to breach of
         any warranty or any  misrepresentation  by DBC under this  Agreement or
         any Collateral Document;

                  (vi) any liability or obligation from or relating to breach or
         violation  of,  or  failure  to  perform,  any  of  DBC's  obligations,
         covenants,  agreements or  undertakings  set forth in this Agreement or
         any Collateral Document, including without limitation Article 5 of this
         Agreement;

                  (vii) any obligation or liability relating to any asset of DBC
         not included in the DBC Assets.

                  (viii) any obligation or liability with respect to capitalized
         lease obligations or Indebtedness for Money Borrowed;

                  (ix) any Taxes, fees, expenses or other amounts required to be
         paid  by DBC  pursuant  to the  provisions  of  this  Agreement  or any
         Collateral Document; and

                  (x) any Contract with any Affiliate of DBC,  other than those,
         if any, set forth in Section 2(b)(x) of the DBC Disclosure Schedule.

All  DBC  Nonassumed  Obligations  shall  remain  and  be  the  obligations  and
liabilities solely of DBC.

         (c)  Notwithstanding  anything  contained  in  this  Agreement  to  the
contrary,  except as set forth in Section 2.2(c) of the DBC Disclosure Schedule,
all items of income and expense  (including  without  limitation with respect to
rent,  utility  charges,  Pro Ratable Taxes and wages,  salaries and accrued but
unused vacation of DBC employees) arising from the ownership or operation of the
DBC Assets or the  conduct of the DBC  Business  shall be  prorated  as of 12:01
a.m.,  Eastern time, on the Closing Date,  with DBC entitled to and  responsible
for any  such  items on or prior to the  Closing  Date and ATS  entitled  to and
responsible  for any such items  relating to any  subsequent  period.  For these
purposes, Pro Ratable Taxes attributable to a period that begins before and ends
after the Closing Date shall be treated on a "closing of the books" basis

                                       -2-


<PAGE>



as two  partial  periods,  one ending at the close of the  Closing  Date and the
other beginning on the day after the Closing Date, except that Pro Ratable Taxes
(such as property  Taxes)  imposed on a periodic  basis shall be  allocated on a
daily basis.  If either party shall have  received any such revenues or paid any
such expenses or charges which, pursuant to the terms hereof, the other party is
entitled to or responsible for, it shall furnish the other party with a detailed
statement  of any such  items as soon as  practicable  after  receipt or payment
thereof.  The parties  shall use their best efforts to agree upon such items and
other  adjustments  prior to the Closing  Date and, in any event,  except as set
forth in Section 2.2(c) of the DBC Disclosure  Schedule,  within sixty (60) days
thereafter.  If the  parties  are unable  within  such period to agree upon such
items and other  adjustments,  DBC and ATS shall,  within the following ten (10)
days, jointly designate a nationally known independent public accounting firm to
be  retained  to review  such  items and other  adjustments.  The fees and other
expenses of retaining such  independent  public  accounting  firm shall be borne
equally by DBC and ATS. Such firm shall report its  conclusions as to such items
and  other  adjustments  pursuant  to this  Section  and  such  report  shall be
conclusive  on all  parties  to this  Agreement  and not  subject  to dispute or
review.  Upon such agreement or  determination  by such  independent  accounting
firm, DBC or ATS, as the case may be, shall  promptly  reimburse the other party
for any income  received or expenses paid by the other party and not  previously
reimbursed or any other adjustment required by this Section.

         Nothing contained in this Section 2.2(c) is intended or shall be deemed
to amend or modify the indemnification provisions of Article 8 nor to reallocate
responsibility for the matters set forth therein.

         2.3  Closing;  Purchase  Price.  The closing of the  Transactions  (the
"Closing") shall take place at Sullivan & Worcester LLP, One Post Office Square,
Boston,  Massachusetts 02109, at 10:00 a.m., local time, on May 21, 1997 or such
other  date,  prior to the  Termination  Date,  as the  parties  may agree  (the
"Closing Date"). At the Closing, each of the parties shall deliver such bills of
sale,  assignments,  assumptions of liabilities,  opinions and other instruments
and  documents  as are  described  in  this  Agreement  or as  may be  otherwise
reasonably  requested by the parties and their respective counsel.  The purchase
price for the DBC Assets and the DBC Business (the "Purchase Price") shall be an
amount equal to $3,137,000  subject to adjustment as provided in Section  2.2(d)
plus an amount  equal to the Prepaid  Expenses  and minus an amount equal to the
sum of (i) the DBC Nonassumed  Obligations,  if any, which ATS agrees to assume,
and (ii) Prepaid Revenues.

         2.4  Accounts  Receivable.  At the closing,  DBC shall  appoint ATS its
agent for the purpose of collecting all Accounts  Receivable relating to the DBC
Business.  DBC  shall  deliver  to ATS on or as soon as  practicable  after  the
Closing Date a complete and detailed  statement showing the name, amount and age
of each Accounts  Receivable of the DBC Business.  Subject to and limited by the
following,  revenues  relating to the  Accounts  Receivable  relating to the DBC
Business will be for the account of DBC. ATS shall use the same  procedures  and
efforts which it uses with respect to its own accounts receivable to collect the
Accounts Receivable with respect to the DBC Business for a period of ninety (90)
days after the Closing Date (the "Collection  Period").  Any payment received by
ATS during the  Collection  Period from any customer with an account which is an
Accounts  Receivable  with respect to the DBC Business shall first be applied in
reduction of the Accounts Receivable,  unless the customer contests the validity
of such  application.  If the  customer  contests  the  validity  of any payment
received by ATS during the  Collection  Period to be applied in reduction of the
Accounts  Receivable,  then ATS shall  promptly  notify DBC and any payment with
respect to which  application  is contested  as aforesaid  shall be placed in an
escrow arrangement reasonably  satisfactory to ATS and DBC until the validity of
the application is determined.  During the Collection  Period, ATS shall furnish
DBC with a list of, and pay over to DBC, the amounts  collected  with respect to
the Accounts  Receivable with respect to the DBC Business on a monthly basis and
forward to DBC, promptly upon receipt or delivery, as the case may be, copies of
all correspondence relating to Accounts Receivable. ATS shall provide DBC with a
final  accounting on or before the fifteenth (15th) day following the end of the
Collection Period.  Upon the request of either party at and after such time, the
parties shall meet to mutually

                                       -3-


<PAGE>



and in good faith analyze any  uncollected  Accounts  Receivable to determine if
the same, in their reasonable  business  judgment,  are deemed to be collectable
and if ATS desires to retain such Accounts Receivable.  As to each such Accounts
Receivable,  the parties  shall  negotiate  a good faith value of such  Accounts
Receivable,  which ATS shall pay to DBC if ATS, in its sole discretion,  chooses
to retain such Accounts Receivable. DBC shall retain the right to collect any of
its Accounts Receivable as to which the parties are unable to reach agreement as
to a good faith value, and ATS agrees to turn over to DBC any payments  received
against any such  Accounts  Receivable.  ATS shall not be  obligated  to use any
extraordinary  efforts to collect any of the Accounts  Receivable assigned to it
for  collection  hereunder  or to refer  any of such  Accounts  Receivable  to a
collection agency or to any attorney for collection,  and ATS shall not make any
such  referral  or  compromise,  nor  settle  or adjust  the  amount of any such
Accounts  Receivable,  except with the  approval of DBC. ATS shall not incur any
liability to DBC for any  uncollected  account  unless ATS shall have engaged in
willful misconduct or gross negligence in the performance of its obligations set
forth in this Section.  During and after the Collection Period, without specific
agreement  with ATS to the  contrary,  neither DBC nor its agents shall make any
direct solicitation of the Accounts Receivable for collection  purposes,  except
for Accounts Receivable retained by DBC after the Collection Period.


                                    ARTICLE 3

                      REPRESENTATIONS AND WARRANTIES OF DBC

         DBC hereby represents,  warrants and covenants to, and agrees with, ATS
as follows:

         3.1  Organization  and  Business;   Power  and  Authority;   Effect  of
Transaction.

         (a) DBC is a corporation  duly organized,  validly existing and in good
standing under the laws of its jurisdiction of  organization,  has all requisite
power  and  authority  (corporate  and  other)  to own or hold  under  lease its
properties and to conduct its business as now conducted.

         (b) DBC has all requisite  corporate power and corporate  authority and
has in full  force  and  effect  all  Governmental  Authorizations  and  Private
Authorizations,  except  for  those  set  forth  in  Section  3.1(b)  of the DBC
Disclosure  Schedule or those the failure of which to obtain do not and will not
have,  individually  or in the  aggregate,  any material  adverse effect on DBC,
necessary  to enable it to execute and deliver,  and to perform its  obligations
under,  this Agreement and each Collateral  Document  executed or required to be
executed by it pursuant hereto or thereto or to consummate the Transactions; and
the execution,  delivery and  performance of this Agreement and each  Collateral
Document  executed or  required to be executed by it pursuant  hereto or thereto
have been duly authorized by all requisite corporate or other action on the part
of either of the DBC. This Agreement has been duly executed and delivered by DBC
and  constitutes,  and each  Collateral  Document  executed  or  required  to be
executed by it pursuant hereto or thereto or to consummate the Transactions when
executed  and  delivered  by DBC  will  constitute,  legal,  valid  and  binding
obligations  of DBC,  enforceable  in accordance  with their  respective  terms,
except  as  such  enforceability  may  be  limited  by  bankruptcy,  moratorium,
insolvency  and similar laws  affecting the rights and remedies of creditors and
obligations of debtors generally and by general principles of equity.

         (c)  Except  as set  forth  in  Section  3.1(c)  of the DBC  Disclosure
Schedule,  and except for matters which would have no material adverse effect on
the DBC,  neither the  execution  and  delivery by DBC of this  Agreement or any
Collateral Document executed or required to be executed by it pursuant hereto or
thereto,  nor the consummation by DBC of the  Transactions,  nor compliance with
the terms, conditions and provisions hereof or thereof by DBC:


                                       -4-


<PAGE>



                  (i) will conflict with, or result in a breach or violation of,
         or  constitute  a default  under,  any  Organic  Document of DBC or any
         Applicable  Law on the part of DBC, or will conflict with, or result in
         a breach or violation of, or constitute a default under,  or permit the
         acceleration  of  any  obligation  or  liability  in,  or but  for  any
         requirement  of  giving  of notice  or  passage  of time or both  would
         constitute  such a conflict  with,  breach or violation  of, or default
         under, or permit any such  acceleration in, any Contractual  Obligation
         of DBC,  other  than those  constituting  DBC  Nonassumed  Obligations;
         provided,  however,  that DBC makes no representation and warranty that
         any Contractual  Obligation  which requires a consent to its assignment
         will not be  breached  if such  consent  is not  obtained  prior to the
         Closing and the rights of DBC thereunder are  nevertheless  assigned to
         ATS; or

                  (ii)  will  require  DBC to make or  obtain  any  Governmental
         Authorization,  Governmental Filing or Private Authorization  including
         without limitation under the FCA.

         (d)      DBC has no Subsidiaries.

         3.2 Financial and Other Information.  The DBC has heretofore  furnished
to ATS  copies  of  the  internally  prepared  cash  basis  income  and  expense
statements  of the DBC  Business  listed in  Section  3.2 of the DBC  Disclosure
Schedule  (the "DBC  Statements").  The DBC  Statements  are true,  accurate and
complete cash basis income and expense statements in all material  respects,  do
not contain any untrue statement of a material fact, and fairly present the cash
flow of the DBC Business for the respective periods covered thereby,  subject to
normal nonmaterial  adjustments.  ATS acknowledges that no representations  have
been made by DBC that (a) the past financial  performance of DBC as reflected in
the DBC Statements (and on the Tax Returns furnished  pursuant to the provisions
of Section 3.11) are in any way reflective of future  financial  performance and
(b) that certain  amounts of income  included in the DBC Statements  (and on the
Tax Returns  furnished  pursuant to the  provisions of Section 3.11) are derived
from sources other than the DBC Assets.

         3.3 Changes in Condition.  Since the date of the most recent statements
constituting  a part of the DBC  Statements,  except to the extent  specifically
described  in  Section  3.3 of the DBC  Disclosure  Schedule,  there has been no
material adverse change in the DBC Assets or the DBC Business. There is no Event
known  to DBC  which  materially  adversely  affects,  or (so far as DBC can now
reasonably foresee) is likely to materially  adversely affect, the DBC Assets or
the DBC Business,  except to the extent specifically described in Section 3.3 of
the DBC Disclosure Schedule.

         3.4 Materiality.  The  representations and warranties set forth in this
Article would in the aggregate be true and correct even without the  materiality
exceptions  or  qualifications  contained  therein  or  set  forth  in  the  DBC
Disclosure  Schedule,  except for such exceptions and  qualifications  including
without limitation those set forth in the DBC Disclosure  Schedule which, in the
aggregate for all such  representations  and  warranties,  are not and could not
reasonably  be  expected to be  materially  adverse to the DBC Assets or the DBC
Business.

         3.5  Title to  Properties;  Leases.  DBC does not own or lease any real
property or lease any  personal  property  that is part of the DBC Assets or own
any  material  items of  tangible  personal  property  and,  therefore,  no real
property or any  material  items of tangible  personal  property or any interest
therein is being transferred.

         3.6  Compliance  with  Private  Authorizations.  Section 3.6 of the DBC
Disclosure   Schedule  sets  forth  a  true,  accurate  and  complete  list  and
description of each Private  Authorization which individually is material to the
DBC Assets or the DBC  Business.  DBC has  obtained  all Private  Authorizations
which are  necessary  for the  ownership  or  operation of the DBC Assets or the
conduct of the DBC Business which, if

                                       -5-


<PAGE>



not obtained and maintained, could, individually or in the aggregate, materially
adversely affect DBC; provided, however, that the representations and warranties
set forth in this  Section are not  intended to apply to (a) any of the consents
required in order to assign the DBC Assets to ATS pursuant to the  provisions of
this Agreement,  and (b) the failure of DBC to obtain any or all of the consents
required in order to assign the DBC Assets to ATS pursuant to the  provisions of
this  Agreement.  All of  such  Private  Authorizations  are  valid  and in good
standing and are in full force and effect. DBC is not in breach or violation of,
or in default in the performance, observance or fulfillment of, any such Private
Authorization,  and no Event exists or has occurred,  which constitutes,  or but
for any  requirement  of  giving  of notice  or  passage  of time or both  would
constitute,  such a  breach,  violation  or  default,  under  any  such  Private
Authorization,  except for such  defaults,  breaches or violations as do not and
will not have in the aggregate  any material  adverse  effect on DBC;  provided,
however, that the foregoing representation and warranty is not intended to apply
to the failure of DBC to obtain all consents required in order to assign the DBC
Assets to ATS  pursuant to the  provisions  of this  Agreement.  No such Private
Authorization is the subject of any pending or, to DBC's  knowledge,  threatened
attack, revocation or termination.

         3.7 Compliance with Governmental Authorizations and Applicable Law.

         (a) Except as otherwise specifically described in Section 3.7(a) of the
DBC Disclosure Schedule,  there is no Governmental  Authorization required under
Applicable Laws (i) to own and operate the DBC Business,  as currently conducted
or proposed to be  conducted  on or prior to the Closing  Date,  or (ii) that is
necessary to permit DBC to execute and deliver this Agreement and to perform its
obligations hereunder;  provided, however, that the foregoing representation and
warranty  is  not  intended  to  apply  to  consents  of  Persons   (other  than
Authorities)  required in order to assign the DBC Assets to ATS  pursuant to the
provisions of this Agreement.

         (b) Except as otherwise specifically described in Section 3.7(b) of the
DBC  Disclosure  Schedule,  neither DBC nor any director or officer  thereof (in
connection  with  ownership or operation of the DBC Assets or the conduct of the
DBC Business) is in or is charged by any Authority with or, to DBC's  knowledge,
at any time  since  January  1,  1993 has  been in or has  been  charged  by any
Authority with, or, to DBC's knowledge,  is threatened or under investigation by
any  Authority  with  respect  to,  breach or  violation  of, or  default in the
performance,  observance or  fulfillment  of, any Applicable Law relating to the
ownership and operation of the DBC Assets or the conduct of the DBC Business. In
particular,  but without limiting the generality of the foregoing,  there are no
applications,  complaints  or Legal  Actions  pending  or,  to DBC's  knowledge,
threatened before or by any Authority (x) relating to the ownership or operation
of the DBC Assets or the conduct of the DBC Business  which,  individually or in
the  aggregate,  are  reasonably  likely  to  result  in the  imposition  of any
restriction  of such a  nature  as  would  adversely  affect  the  ownership  or
operation of the DBC Assets or the conduct of the DBC  Business;  (y)  involving
charges of illegal  discrimination  by DBC under any federal or state employment
Laws, or (z) involving  Environmental  Laws or zoning laws,  except as otherwise
specifically described in Section 3.7(b) of the DBC Disclosure Schedule.

         (c) Except as otherwise specifically described in Section 3.7(c) of the
DBC  Disclosure  Schedule,  no Event  exists or has  occurred,  which,  to DBC's
knowledge,  constitutes,  or but for any  requirement  of  giving  of  notice or
passage of time or both would constitute,  such a breach,  violation or default,
under any Applicable Law, except for such breaches, violations or defaults as do
not and will not have,  individually or in the aggregate,  any material  adverse
effect on the DBC Assets or the DBC Business.

         (d) With respect to matters, if any, of a nature referred to in Section
3.7(b)  or  3.7(c)  of  the  DBC  Disclosure   Schedule,   except  as  otherwise
specifically  described in Section  3.7(d) of the DBC Disclosure  Schedule,  all
such  information  and  matters  set forth in the DBC  Disclosure  Schedule,  if
adversely determined

                                       -6-


<PAGE>



against  DBC,  will not,  individually  or in the  aggregate,  have a materially
adverse effect on the DBC Assets or the DBC Business.

         3.8  Intangible  Assets.  There are no  Intangible  Assets  (other than
Private  Authorizations)  required  for the  ownership  or  operation of the DBC
Assets or the  conduct of the DBC  Business as  currently  owned,  operated  and
conducted  or proposed to be owned,  operated  and  conducted on or prior to the
Closing  Date.  DBC, to its  knowledge,  does not  wrongfully  infringe  upon or
unlawfully  use any Intangible  Assets owned or claimed by another,  and DBC has
not  received  any  notice of any  claim or  infringement  relating  to any such
Intangible Asset.

         3.9  Related  Transactions.  DBC  is  not a  party  or  subject  to any
Contractual  Obligation relating to the ownership or operation of the DBC Assets
or the  conduct  of the  DBC  Business  between  DBC  and  any of its  officers,
directors, shareholders, employees or, to the knowledge of DBC, any Affiliate of
any thereof,  including without limitation any Contractual  Obligation providing
for the furnishing of services to or by, providing for rental of property, real,
personal or mixed,  to or from,  or  providing  for the lending or  borrowing of
money to or from or otherwise  requiring  payments to or from,  any such Person,
other than (i)  Employment  Arrangements  listed or described in Section 3.15 of
the DBC Disclosure Schedule, (ii) Contractual Obligations between DBC and any of
its directors, shareholders,  officers, employees or Affiliates of DBC or any of
the foregoing,  which constitute  assets other than DBC Assets or DBC Nonassumed
Obligations,  or (iii) as  specifically  set  forth  in  Section  3.9 of the DBC
Disclosure Schedule.

         3.10 Solvency. As of the execution and delivery of this Agreement,  DBC
is, and immediately  prior to and after giving effect to the consummation of the
Transactions will be, solvent.

         3.11     Tax Matters.

         (a) DBC is not a "consenting corporation" within the meaning of Section
341(f)  of the  Code.  DBC has at all  times  been  taxable  as a  Subchapter  C
corporation  under the Code,  and has  never  been a member of any  consolidated
group for Tax purposes,  except as otherwise set forth in Section 3.11(a) of the
DBC Disclosure Schedule.

         (b) The information  shown on the federal income Tax Returns of DBC for
each of the most recent four tax years (true and complete  copies of which have,
to the extent requested by ATS, been furnished by DBC to ATS) is true,  accurate
and complete in all material  respects  and fairly and  accurately  reflects the
information  purported  to be shown.  Federal  Tax  Returns of DBC have not been
examined by the Internal Revenue  Service,  and DBC has not been notified of any
proposed  examination,  except as shown in Section 3.11(b) of the DBC Disclosure
Schedule.

         (c) DBC is not a party to any tax sharing agreement or arrangement.

         3.12 Employee  Retirement  Income  Security Act of 1974. DBC (which for
purposes of this Section  shall  include any ERISA  Affiliate) is not making any
contribution  to or sponsoring,  and has not at any time since its  organization
made any contribution to or sponsored,  any Plan or Benefit Arrangement which is
subject to ERISA.

         3.13  Absence  of  Sensitive  Payments.   Neither  DBC  nor,  to  DBC's
knowledge,  any  of  its  officers,   directors,   employees,  agents  or  other
representatives, has with respect to the DBC Assets or the DBC Business (a) made
any  contributions,  payments  or  gifts  to or  for  the  private  use  of  any
governmental official, employee or agent where either the payment or the purpose
of such contribution, payment or gift is illegal

                                       -7-


<PAGE>



under the laws of the  United  States or the  jurisdiction  in which made or (b)
established or maintained  any unrecorded  fund or asset for any purpose or made
any false or artificial entries on its books.

         3.14  Inapplicability  of  Specified  Statutes.  DBC is not a  "holding
company", or a "subsidiary company" or an "affiliate" of a "holding company", as
such terms are defined in the Public  Utility  Holding  Company Act of 1935,  as
amended,  or an "investment  company" or a company  "controlled" by or acting on
behalf of an "investment  company",  as defined in the Investment Company Act of
1940, as amended, or a "carrier" or a person which is in control of a "carrier",
as defined in section 11301 of Title 49, U.S.C.

         3.15  Employment  Arrangements.  Section  3.15  of the  DBC  Disclosure
Schedule  contains a true,  accurate  and  complete  list of all  employees  and
consultants  of DBC involved in the  ownership or operation of the DBC Assets or
the conduct of the DBC Business (the "DBC  Employees"),  together with each such
employee's  title or the  capacity in which he or she is employed  and the basis
for  the  DBC  Employees'  compensation.  DBC has no  obligation  or  liability,
contingent or other,  under any  Employment  Arrangement  with any DBC Employee,
other than those  listed or  described  in  Section  3.15 of the DBC  Disclosure
Schedule.  Except as described in Section 3.15 of the DBC  Disclosure  Schedule,
(a)  none of the DBC  Employees  is now,  or since  January  1,  1993 has  been,
represented  by  any  labor  union  or  other  employee  collective   bargaining
organization,  and DBC is not and  never  has been a party to any labor or other
collective  bargaining  agreement with respect to any of the DBC Employees,  (b)
there are no pending grievances, disputes or controversies with any union or any
other employee or collective  bargaining  organization of the DBC Employees,  or
threats of strikes,  work  stoppages  or  slowdowns  or any pending  demands for
collective  bargaining by any such union or other organization,  (c) neither DBC
nor any of the DBC Employees is now, or has since January 1, 1993 been,  subject
to or involved in or, to DBC's knowledge,  threatened with, any union elections,
petitions therefore or other  organizational or recruiting  activities,  in each
case with respect to the DBC  Employees,  and (d) none of the DBC  Employees has
notified  DBC that he or she does not  intend to  continue  employment  with DBC
until the Closing or with ATS  following  the Closing.  DBC has performed in all
material respects all obligations  required to be performed under all Employment
Arrangements  and is not in  material  breach  or  violation  of or in  material
default or arrears under any of the terms, provisions or conditions thereof.

         3.16 Material Agreements.  Listed on Section 3.16 of the DBC Disclosure
Schedule are all Material  Agreements  relating to the ownership or operation of
the DBC Assets or the conduct of the  business  of the DBC  Business or to which
DBC is a party  or to  which it is  bound  or  which  any of the DBC  Assets  is
subject.  True, accurate and complete copies of each of such Material Agreements
have been made available by DBC to ATS and DBC has provided ATS with photocopies
of  all  such  Material  Agreements  requested  by  ATS.  All of  such  Material
Agreements are valid, binding and legally enforceable obligations of DBC and, to
DBC's knowledge, all other parties thereto, except as such enforceability may be
limited by  bankruptcy,  moratorium,  insolvency  and similar laws affecting the
rights and remedies of creditors  and  obligations  of debtors  generally and by
general  principles  of equity.  DBC has duly  complied with all of the material
terms  and  conditions  of each  such  Material  Agreement  and has not  done or
performed,  or failed  to do or  perform  (and  there is no  pending  or, to the
knowledge of DBC, Claim threatened in writing that DBC has not so complied, done
and  performed or failed to do and perform)  any act which would  invalidate  or
provide  grounds  for the other  party  thereto  to  terminate  (with or without
notice, passage of time or both) such Material Agreement or impair the rights or
benefits, or increase the costs, of DBC under any of such Material Agreements in
any material respect.

         3.17 Ordinary Course of Business. DBC, from the date of the most recent
DBC Financial  Statements to the date hereof,  except (i) as may be described on
Section  3.17 of the DBC  Disclosure  Schedule,  or (ii) as may be  required  or
expressly  contemplated by the terms of this Agreement,  with respect to the DBC
Assets and the DBC Business:

                                       -8-


<PAGE>




                  (a) has operated its business in all material  respects in the
         normal,  usual and customary  manner in the ordinary and regular course
         of business, consistent with prior practice;

                  (b) except in each case in the  ordinary  course of  business,
         consistent with prior practice:

                           (i) has not  incurred  any  obligation  or  liability
                  (fixed,  contingent or other)  individually  having a value in
                  excess of $20,000;

                           (ii)  has  not  sold  or  otherwise  disposed  of  or
                  contracted  to  sell  or  otherwise  dispose  of  any  of  its
                  properties or assets having a value in excess of $20,000;

                           (iii) has not entered into any individual  commitment
                  having a value in excess of $20,000; and

                           (iv)  has not canceled any debts or claims;

                  (c) has not created or permitted to be created any Lien on any
         of its property;

                  (d) has not  increased the  compensation  payable or to become
         payable to any of the DBC Employees  other than in the ordinary  course
         of business or otherwise  materially  altered,  modified or changed the
         terms of their employment, except for its officers;

                  (e) has not  waived  any rights of  material  value  under any
         Contractual  Obligation  constituting  a part of the DBC Assets without
         fair and adequate consideration;

                  (f) has not experienced any work stoppage; and

                  (g) except in the ordinary course of business, has not entered
         into,  amended or  terminated  any Private  Authorizations  or Material
         Agreement constituting a part of the DBC Assets.

         3.18  Broker or Finder.  No Person  assisted  in or  brought  about the
negotiation  of this  Agreement or the  Transactions  in the capacity of broker,
agent or finder or in any similar capacity on behalf of DBC.


                                    ARTICLE 4

                      REPRESENTATIONS AND WARRANTIES OF ATS

         ATS  represents,  warrants and  covenants  to, and agrees with,  DBC as
follows:

         4.1  Organization  and  Business;   Power  and  Authority;   Effect  of
Transaction.

         (a) ATS is a corporation  duly organized,  validly existing and in good
standing  under  the  laws  of its  jurisdiction  of  incorporation  and has all
requisite  power and authority  (corporate and other) to own or hold under lease
its properties and to conduct its business as now conducted.

         (b) ATS has all  requisite  corporate  power  and  corporate  authority
necessary  to enable it to execute and deliver,  and to perform its  obligations
under,  this Agreement and each Collateral  Document  executed or required to be
executed by it pursuant hereto or thereto or to consummate the Transactions; and

                                       -9-


<PAGE>



the execution,  delivery and  performance of this Agreement and each  Collateral
Document  executed or  required to be executed by it pursuant  hereto or thereto
have been duly authorized by all requisite corporate or other action on the part
of  ATS.  This  Agreement  has  been  duly  executed  and  delivered  by ATS and
constitutes, and each Collateral Document executed or required to be executed by
it pursuant  hereto or thereto or to consummate the  Transactions  when executed
and delivered by ATS will constitute,  legal,  valid and binding  obligations of
ATS,  enforceable  in accordance  with their  respective  terms,  except as such
enforceability may be limited by bankruptcy,  moratorium, insolvency and similar
laws  affecting  the rights and remedies of  creditors  and the  obligations  of
debtors generally and by general principles of equity.

         (c) Except for matters which would have no material  adverse  effect on
ATS,  neither  the  execution  and  delivery  by ATS of  this  Agreement  or any
Collateral Document executed or required to be executed by it pursuant hereto or
thereto,  nor the consummation by ATS of the  Transactions,  nor compliance with
the terms, conditions and provisions hereof or thereof by ATS:

                  (i) will conflict with, or result in a breach or violation of,
         or  constitute  a default  under,  any  Organic  Document of ATS or any
         Applicable  Law on the part of ATS, or will conflict with, or result in
         a breach or violation of, or constitute a default under,  or permit the
         acceleration  of  any  obligation  or  liability  in,  or but  for  any
         requirement  of  giving  of notice  or  passage  of time or both  would
         constitute  such a conflict  with,  breach or violation  of, or default
         under, or permit any such  acceleration in, any Contractual  Obligation
         of ATS; or

                  (ii)  will  require  ATS to make or  obtain  any  Governmental
         Authorization,  Governmental Filing or Private Authorization  including
         without limitation under the FCA.

         4.2  Broker or  Finder.  No Person  assisted  in or  brought  about the
negotiation  of this  Agreement or the  Transactions  in the capacity of broker,
agent or finder or in any similar capacity on behalf of ATS.

         4.3 Solvency.  As of the execution and delivery of this Agreement,  ATS
is, and immediately  prior to and after giving effect to the consummation of the
Transactions will be, solvent.

         4.4 No Legal  Action.  There are no Legal  Actions  pending  or, to the
knowledge  of ATS,  threatened  against ATS or any of its  Affiliated  Entities,
officers  or  directors,  that  question  or may  affect  the  validity  of this
Agreement  or the  right  of ATS to  consummate  the  transactions  contemplated
hereunder.


                                    ARTICLE 5

                               CLOSING CONDITIONS

         5.1 Conditions to Obligations of Each Party to effect the Transactions.
The  respective  obligations  of each  party to effect the  Transactions  shall,
except as hereinafter  provided in this Section,  be subject to the satisfaction
at or prior to the Closing Date of the following conditions, any or all of which
may be waived, in whole or in part, to the extent permitted by Applicable Law:

                  (a) As of the Closing  Date,  no Legal Action shall be pending
         before or  threatened  in writing by any  Authority  seeking to enjoin,
         restrain,  prohibit or make illegal or to impose any materially adverse
         conditions in connection with, the consummation of the Transactions, it
         being understood and agreed that a written request by any Authority for
         information with respect to the  Transactions,  which information could
         be used in connection  with such Legal  Action,  shall not in itself be
         deemed to be a threat of any such Legal Action;

                                      -10-


<PAGE>




                  (b) All authorizations, consents, waivers, orders or approvals
         required  to  be  obtained  from  all  Authorities,  and  all  filings,
         submissions, registrations, notices or declarations required to be made
         by ATS and DBC with any  Authority,  prior to the  consummation  of the
         Transactions,  shall have been obtained  from,  and made with, all such
         Authorities, except for such authorizations, consents, waivers, orders,
         approvals, filings, registrations,  notices or declarations the failure
         to obtain or make would not,  in the  reasonable  business  judgment of
         ATS,  have a  material  adverse  effect  on the DBC  Assets  or the DBC
         Business; and

                  (c) The transactions contemplated by the Other Agreement shall
         be consummated simultaneously with the Closing.

         5.2  Conditions to  Obligations of ATS. The obligation of ATS to effect
the  Transactions  shall  be  subject  to  the  satisfaction  of  the  following
conditions,  any or all of which  may be  waived,  in  whole or in part,  to the
extent permitted by Applicable Law:

                  (a) All agreements, certificates, opinions and other documents
         required to be delivered  pursuant to the  provisions of this Agreement
         shall be reasonably  satisfactory  in form,  scope and substance to ATS
         and its  counsel,  and ATS and its  counsel  shall  have  received  all
         information and copies of all documents, including records of corporate
         proceedings, which they may reasonably request in connection therewith,
         such documents where appropriate to be certified by proper  Authorities
         or corporate officers;

                  (b) DBC shall have  furnished  ATS and, at ATS'  request,  any
         bank or other  financial  institution  providing  credit to ATS, with a
         favorable  opinion,  dated the  Closing  Date of Robert  Osborn,  Esq.,
         counsel for DBC, or other counsel to DBC reasonably  acceptable to ATS,
         with respect to the matters set forth in Sections  3.1(a),  (b) and (c)
         and 3.7(b) (to such counsel's knowledge);

                  (c) DBC shall have  furnished ATS with such  certificates  and
         other   documents   evidencing   the  truth  of  its   representations,
         warranties,  covenants  and  agreements  and  the  performance  of  its
         agreements or  conditions  as ATS or its counsel shall have  reasonably
         requested;

                  (d) DBC shall have  delivered  or cause to be delivered to ATS
         all of the  Collateral  Documents and other  agreements,  documents and
         instruments  required to be  delivered by DBC to ATS at or prior to the
         Closing pursuant to the terms of this Agreement;

                  (e) ATS  shall  have  received  advice  from  its  independent
         accountants  to the effect that,  if  requested by ATS, an  unqualified
         report (as to the scope of the audit,  access to the books and  records
         and  the  cooperation  of  management)  on  the  financial   statements
         (consisting  of  balance  sheets  for each of the  fiscal  years  ended
         December 31, 1995 and 1996 and  statements of operations  and cash flow
         for each of the three years in the period  ended  December 31, 1996) of
         the DBC Business in conformity  with GAAP and  Regulation S-X under the
         Securities Act could be prepared; and

                  (f) The  individual  named  therein  shall have  executed  and
         delivered to ATS an indemnity agreement (the "Indemnity Agreement"), in
         form, scope and substance reasonably satisfactory to ATS.

         5.3  Conditions to  Obligations of DBC. The obligation of DBC to effect
the  Transactions  shall  be  subject  to  the  satisfaction  of  the  following
conditions,  any or all of which  may be  waived,  in  whole or in part,  to the
extent permitted by Applicable Law:

                                      -11-


<PAGE>




                  (a) All agreements, certificates, opinions and other documents
         required to be delivered  pursuant to the  provisions of this Agreement
         shall be reasonably  satisfactory  in form,  scope and substance to DBC
         and its  counsel,  and DBC and its  counsel  shall  have  received  all
         information and copies of all documents, including records of corporate
         proceedings, which they may reasonably request in connection therewith,
         such documents where appropriate to be certified by proper  Authorities
         or corporate officers;

                  (b) ATS shall have  furnished DBC and, at DBC's  request,  any
         bank of other  financial  institution  providing  credit  to DBC,  with
         favorable opinions, dated the Closing Date of Sullivan & Worcester LLP,
         counsel for ATS,  with respect to the matters set forth in Sections 4.1
         and 4.4;

                  (c) ATS shall have  furnished DBC with such  certificates  and
         other   documents   evidencing   the  truth  of  its   representations,
         warranties,  covenants  and  agreements  and  the  performance  of  its
         agreements or  conditions  as DBC or its counsel shall have  reasonably
         requested; and

                  (d) ATS shall have  delivered  or cause to be delivered to DBC
         all of the  Collateral  Documents and other  agreements,  documents and
         instruments  required to be  delivered by ATS to DBC at or prior to the
         Closing pursuant to the terms of this Agreement.


                                    ARTICLE 6

                                 INDEMNIFICATION

         6.1  Survival.  The  representations  and  warranties  of  the  parties
contained  in or made  pursuant  to  Sections 3 and 4 of this  Agreement  or any
Collateral  Document shall survive the Closing and shall remain operative and in
full force and effect for a period of (a) one (1) year after the Closing Date or
(b) the  applicable  statute of  limitations  in the case of matters of a nature
referred  to in  Sections  3.1,  3.11,  3.12,  4.1 and  4.4,  regardless  of any
investigation or statement as to the results thereof made by or on behalf of any
party hereto.  The covenants and agreements of the parties  contained in or made
pursuant  to all of the  other  Sections  of this  Agreement  or any  Collateral
Document shall survive the Closing and shall remain  operative and in full force
and effect for the statute of limitations applicable to contractual obligations.
The term  "Indemnity  Period" shall mean the  applicable  period with respect to
which a representation,  warranty, covenant or agreement survives the Closing as
provided in this Section. Any Claim for indemnification,  no matter how arising,
not asserted by written notice to the Indemnifying Party prior to the expiration
of the  applicable  Indemnity  Period and for which  arbitration  for such Claim
pursuant to Section 7.14 of this  Agreement is not  commenced  within sixty (60)
days of said written notice shall be waived and of no force and effect.

         6.2  Indemnification.  Each of DBC and ATS (the  "Indemnifying  Party")
agrees that on and after the Closing it shall,  subject to survival  periods set
forth in Section 6.1,  indemnify and hold  harmless the other (the  "Indemnified
Party") from and against any and all damages, claims, losses,  expenses,  costs,
obligations and liabilities,  including without  limitation  liabilities for all
reasonable  attorneys',  accountants'  and experts' fees and expenses  including
those incurred to enforce the terms of this Agreement or any Collateral Document
executed by it (collectively,  "Loss and Expense" provided,  however,  that Loss
and  Expense  shall,  in the case of damages,  be limited to actual  damages and
shall  not  include  any  type of  punitive,  consequential  (including  without
limitation  loss  of  anticipated  profits)  or any  other  measure  of  damages
permitted by Applicable Law or otherwise),  suffered directly by the Indemnified
Party by reason of, or arising out of:


                                      -12-


<PAGE>



                  (a) any  breach  of  representation  or  warranty  made by the
         Indemnifying  Party  pursuant  to  this  Agreement  or  any  Collateral
         Document  executed  by it or any failure by the  Indemnifying  Party to
         perform or fulfill any of its  respective  covenants or agreements  set
         forth in this Agreement or any Collateral Document executed by it; or

                  (b) any  Legal  Action  or  other  Claim  by any  third  party
         relating  to the  Indemnifying  Party  or,  in the  case  of  ATS,  the
         ownership  or  operations  of the  DBC  Assets  or the  conduct  of the
         business of the DBC  Business to the extent such Legal  Action or other
         Claim has also  resulted in a breach of  representation  or warranty by
         the  Indemnifying  Party  pursuant to this  Agreement or any Collateral
         Document executed by it; or

                  (c) in the case of DBC as the  Indemnifying  Party,  by reason
         of, or  arising  out of,  (i) DBC  Nonassumed  Obligations  or (ii) the
         ownership and operation of the DBC Assets and the DBC Business prior to
         the Closing Date; or

                  (d) in the case of ATS as the  Indemnifying  Party,  by reason
         of,  or  arising  out  of,  (i) DBC  Assumed  Obligations  or (ii)  the
         ownership and operation of the DBC Assets and the DBC Business from and
         after the Closing Date,  except for Events arising prior to or existing
         on  the  Closing  Date,  unless  they  are  part  of  the  DBC  Assumed
         Obligations.

         6.3      Limitation of Liability.

         (a)  Notwithstanding  the provisions of Section 6.2, after the Closing,
except as otherwise provided in Section 6.6, each Indemnified  Party's rights to
indemnification  shall  be  subject  to  the  following  limitations:   (i)  the
Indemnified  Party  shall be entitled to recover its Loss and Expense in respect
of any Claim  only in the event  that the  aggregate  Loss and  Expense  for all
Claims exceeds, in the aggregate,  $25,000, in which event the Indemnified Party
shall be  entitled  to  recover  all such Loss and  Expense  (including  without
limitation  such  $25,000),  and (ii) in no event  shall  the  aggregate  amount
required to be paid by an Indemnifying  Party pursuant to the provisions of this
Article exceed  $410,000,  except for any Loss or Expense arising out of matters
of a nature  referred to in Sections 3.1 and 4.1 as to which the limitations set
forth in this clause (ii) shall not apply.

         (b) In the case any event shall occur  which  would  otherwise  entitle
either  party  to  assert a claim  for  indemnification  hereunder,  no Loss and
Expense  shall be deemed to have been  sustained  by such party to the extent of
any proceeds  received by such party from any  insurance  policies  with respect
thereto.

         6.4 Notice of Claims.  If an  Indemnified  Party  believes  that it has
suffered or incurred  any Loss and  Expense,  it shall  notify the  Indemnifying
Party promptly in writing,  and in any event within the  applicable  time period
specified in Section 6.1, describing such Loss and Expense,  all with reasonable
particularity  and containing a reference to the provisions of this Agreement in
respect of which such Loss and Expense shall have occurred.  If any Legal Action
is  instituted  by a third  party  with  respect to which an  Indemnified  Party
intends  to claim any  liability  or  expense  as Loss and  Expense  under  this
Article,  such Indemnified Party shall promptly notify the Indemnifying Party of
such Legal Action, but the failure to so notify the Indemnifying Party shall not
relieve such Indemnifying Party of its obligations under this Article, except to
the extent such failure to notify prejudices such  Indemnifying  Party's ability
to defend against such Claim.

         6.5 Defense of Third Party Claims.  The  Indemnifying  Party shall have
the right to  conduct  and  control,  through  counsel  of their  own  choosing,
reasonably  acceptable to the Indemnified Party, any third party Legal Action or
other Claim, but the Indemnified Party may, at its election,  participate in the
defense

                                      -13-


<PAGE>



thereof  at  its  sole  cost  and  expense;  provided,   however,  that  if  the
Indemnifying  Party shall fail to defend any such Legal  Action or other  Claim,
then the Indemnified Party may defend, through counsel of its own choosing, such
Legal Action or other Claim, and (so long as it gives the Indemnifying  Party at
least fifteen (15) days' notice of the terms of the proposed  settlement thereof
and permits the Indemnifying Party to then undertake the defense thereof) settle
such Legal Action or other Claim and recover the amount of such settlement or of
any  judgment  and the  reasonable  costs  and  expenses  of such  defense.  The
Indemnifying Party shall not compromise or settle any such Legal Action or other
Claim without the prior written consent of the Indemnified  Party, which consent
shall not  unreasonably  be withheld,  delayed or  conditioned  if the terms and
conditions of such compromise or settlement  proposed by the Indemnifying  Party
and agreed to in writing by the  claimant  in such Legal  Action or other  Claim
(the "Settlement  Proposal") (a) include a full release of the Indemnified Party
from the Legal  Action or other  Claim  which is the  subject of the  Settlement
Proposal,  and (b) if the  Indemnified  Party is ATS, do not include any term or
condition which would restrict in any material manner the continued ownership or
operations of the DBC Assets or the conduct of the DBC Business in substantially
the manner then being theretofore owned, operated and conducted by ATS.

         6.6 Exclusive Remedy.  Except for (a) fraud constituting  dishonesty or
willful or intentional gross  misrepresentation  or willful or intentional gross
breach of warranty,  covenant or agreement;  provided,  however,  that any Claim
with respect to fraud  constituting  dishonesty or willful or intentional  gross
misrepresentation  or willful or intentional gross breach of warranty,  covenant
or agreement, no matter how arising, not asserted by written notice to the party
alleged  to have  committed  the  same  prior  to May  21,  1999  and for  which
arbitration  with  respect  to  such  Claim  pursuant  to  Section  7.14 of this
Agreement is not commenced  within sixty (60) days of said written  notice shall
be waived and of no force and effect; or (b) specific performance and injunctive
relief as provided in Section 7.5, the indemnification  provided in this Article
shall be the sole and exclusive  post-Closing  remedy  available to either party
against the other party for any Claim under this Agreement.


                                    ARTICLE 7

                               GENERAL PROVISIONS


         7.1  Amendment.  This Agreement may be amended from time to time by the
parties  hereto at any time prior to the Closing Date but only by an  instrument
in writing signed by the parties hereto.

         7.2 Waiver. At any time prior to the Closing Date, except to the extent
not  permitted  by  Applicable  Law,  ATS or DBC may  extend  the  time  for the
performance  of any of the  obligations  or other  acts of the  other,  subject,
however,  to the  provisions  with respect to the  Termination  Date,  waive any
inaccuracies in the representations and warranties of the other contained herein
or in any document  delivered pursuant hereto, and waive compliance by the other
with any of the agreements,  covenants or conditions  contained herein. Any such
extension or waiver shall be valid only if set forth in an instrument in writing
signed by the party or parties to be bound thereby.

         7.3 Fees, Expenses and Other Payments.  All costs and expenses incurred
in connection  with this  Agreement and the  consummation  of the  Transactions,
including  without  limitation  fees and  disbursements  of  counsel,  financial
advisors and accountants  incurred by the parties hereto,  shall be borne solely
and entirely by the party which has incurred such costs and expenses.

         7.4  Notices.  All  notices  and  other  communications  which  by  any
provision of this Agreement are required or permitted to be given shall be given
in writing and shall be (a) mailed by first-class or express

                                      -14-


<PAGE>



mail, or by recognized  courier  service,  postage  prepaid,  (b) sent by telex,
telegram, telecopy or other form of rapid transmission, confirmed by mailing (by
first class or express mail, or by recognized courier service,  postage prepaid)
written  confirmation at substantially the same time as such rapid transmission,
or (c)  personally  delivered  to the  receiving  party  (which if other than an
individual  shall be an  officer  or other  responsible  party of the  receiving
party). All such notices and communications  shall be mailed,  sent or delivered
as follows:

         (a)      If to ATS:

                  116 Huntington Avenue
                  Boston, Massachusetts 02116
                  Attention:   Joseph L. Winn, Chief Financial Officer
                  Telecopier No.:  (617) 375-7575

                  with a copy to:

                  Sullivan & Worcester LLP
                  One Post Office Square
                  Boston, Massachusetts 02109
                  Attention:  Norman A. Bikales, Esq.
                  Telecopier No.:  (617) 338-2880

         (b)      If to DBC:

                  23 Hampden Drive
                  Norwood, Massachusetts 02062
                  Attention: David Burnett
                  Telecopier No.: (617) 551-0546

                  with a copy to:

                  D'Agostine, Levine & Gordon, P.C.
                  268 Main Street
                  Acton, Massachusetts 01720
                  Attention: Louis N. Levine, Esq.
                  Telecopier No.: (508) 264-4868

or to such other person(s),  telex or facsimile  number(s) or address(es) as the
party to receive any such communication or notice may have designated by written
notice to the other party.

         7.5  Specific  Performance;  Other  Rights  and  Remedies.  Each  party
recognizes and agrees that in the event the other party should refuse to perform
any of its  obligations  under this  Agreement or any Collateral  Document,  the
remedy at law would be inadequate and agrees that for breach of such provisions,
each party shall,  in addition to such other  remedies as may be available to it
at law or in equity,  be entitled to injunctive relief and to enforce its rights
by an action for specific performance to the extent permitted by Applicable Law.
The parties agree that the dispute  underlying Claims of any action for specific
performance shall be decided by arbitration in accordance with the provisions of
Section 7.14. All actions for injunctive relief,  specific  performance or other
relief shall be determined in  accordance  with the governing law  provisions of
Section 7.9.  Nothing herein  contained  shall be construed as prohibiting  each
party  from  pursuing  any  other  remedies  available  to it  pursuant  to  the
provisions of and subject to the limitations

                                      -15-


<PAGE>



contained   in  this   Agreement   for  such   breach  or   threatened   breach.
Notwithstanding  the  foregoing  or  any  provision  of  this  Agreement  to the
contrary,  after  the  Closing  Date  ATS  shall  not be  entitled  to  specific
performance  or any other remedy to the extent that the cost to DBC arising from
the  enforcement  or  exercise  of such  remedy  would  exceed the amount of the
indemnification  required by Section 6.3, for all costs and expenses incurred in
connection with its  performance of or compliance  with the remedy  exercised or
enforced.

         7.6  Severability.  If any term or provision of this Agreement shall be
held or deemed  to be, or shall in fact be,  invalid,  inoperative,  illegal  or
unenforceable  as  applied  to  any  particular  case  in  any  jurisdiction  or
jurisdictions,  or in  all  jurisdictions  or  in  all  cases,  because  of  the
conflicting of any provision with any  constitution or statute or rule of public
policy or for any other reason,  such circumstance  shall not have the effect of
rendering the provision or provisions in question invalid, inoperative,  illegal
or unenforceable in any other  jurisdiction or in any other case or circumstance
or of rendering any other  provision or  provisions  herein  contained  invalid,
inoperative,  illegal or  unenforceable to the extent that such other provisions
are not themselves actually in conflict with such constitution,  statute or rule
of public policy, but this Agreement shall be reformed and construed in any such
jurisdiction or case as if such invalid,  inoperative,  illegal or unenforceable
provision had never been contained herein and such provision reformed so that it
would be valid,  operative and  enforceable to the maximum  extent  permitted in
such jurisdiction or in such case.  Notwithstanding the foregoing,  in the event
of any such  determination  the  effect  of which is to  affect  materially  and
adversely either party, the parties shall negotiate in good faith to modify this
Agreement  so as to effect  the  original  intent of the  parties  as closely as
possible to the fullest  extent  permitted by  Applicable  Law in an  acceptable
manner to the end that the  Transactions  are fulfilled and  consummated  to the
maximum extent possible.

         7.7   Counterparts.   This   Agreement   may  be  executed  in  several
counterparts,  each of  which  shall be  deemed  an  original,  but all of which
together shall constitute one and the same  instrument,  binding upon all of the
parties. In pleading or proving any provision of this Agreement, it shall not be
necessary to produce more than one of such counterparts.

         7.8 Section Headings.  The headings contained in this Agreement are for
reference  purposes  only  and  shall  not in any  way  affect  the  meaning  or
interpretation of this Agreement.

         7.9  Governing  Law. The  validity,  interpretation,  construction  and
performance of this Agreement  shall be governed by, and construed in accordance
with,  the  applicable  laws of the United States of America and the laws of the
Commonwealth of Massachusetts applicable to contracts made and performed in such
State and, in any event, without giving effect to any choice or conflict of laws
provision or rule that would cause the application of domestic  substantive laws
of  any  other  jurisdiction.   Anything  in  this  Agreement  to  the  contrary
notwithstanding,  including  without  limitation the provisions of Article 6, in
the event of any dispute  between the parties  which  results in a Legal Action,
the prevailing party shall be entitled to receive from the non-prevailing  party
reimbursement for reasonable legal fees and expenses incurred by such prevailing
party in such Legal  Action.  In the event of any Legal Action among the parties
arising out of this  Agreement,  the  parties  agree to submit the matter to the
appropriate state or federal court sitting in Suffolk County,  Massachusetts and
the parties agree to submit to the jurisdiction of such courts.

         7.10 Further Acts. Each party agrees that at any time, and from time to
time, before and after the consummation of the transactions contemplated by this
Agreement,  it  will do all  such  things  and  execute  and  deliver  all  such
Collateral  Documents  and other  assurances,  as any other party or its counsel
reasonably  deems  necessary  or  desirable  in order to carry out the terms and
conditions of this  Agreement  and the  transactions  contemplated  hereby or to
facilitate  the enjoyment of any of the rights  created  hereby or to be created
hereunder.

                                      -16-


<PAGE>




         7.11 Entire Agreement. This Agreement (together with the DBC Disclosure
Schedule and the other Collateral  Documents delivered in connection  herewith),
constitutes  the  entire  agreement  of the  parties  and  supersedes  all prior
agreements and undertakings,  both written and oral,  between the parties,  with
respect to the subject matter hereof,  including without limitation that certain
letter of intent, dated March 6, 1997, between the parties. The parties have not
made or relied upon any warranties or representations  except those specifically
set forth in this Agreement.

         7.12 Assignment. This Agreement shall not be assignable by either party
and any such  assignment  shall be null and void,  except that it shall inure to
the benefit of and by binding  upon any  successor  to any party by operation of
law,  including by way of merger,  consolidation or sale of all or substantially
all of its assets,  and ATS may assign its rights and remedies  hereunder to any
bank or other financial institution which has loaned funds or otherwise extended
credit to it.

         7.13  Parties in  Interest.  This  Agreement  shall be binding upon and
inure  solely to the  benefit of each  party,  and  nothing  in this  Agreement,
express or implied,  is  intended to or shall  confer upon any Person any right,
benefit or remedy of any nature whatsoever under or by reason of this Agreement,
except as otherwise provided in Section 7.12.

         7.14  Arbitration.  Subject to the provisions of Section 2.2(d) and the
right to seek injunctive relief and specific  performance in accordance with the
provisions  of Section 7.5 which shall take  precedence  over the  provisions of
this  Section,  any  controversy  or claim  arising  out of or  relating to this
Agreement,  or the  breach  thereof,  shall  be  determined  by  arbitration  in
accordance  with  the  governing  law  provisions  of  Section  7.9 and the then
existing commercial  arbitration rules of the American  Arbitration  Association
before a panel of three  (3)  arbitrators  in  Boston,  Massachusetts,  selected
within  thirty  (30) days of the  commencement  of such  arbitration,  with each
participant selecting one arbitrator and the two so selected selecting the third
(or  the  third  being  selected  by the  American  Arbitration  Association  if
agreement on a third is not reached  within  thirty (30) days);  and the parties
hereto agree that any judgment or award rendered by such arbitrators  shall be a
final and binding  determination as to such matter or matters and may be entered
in any court having jurisdiction thereof; provided, however, that in the case of
damages,  the  parties  shall,  except  in  the  case  of a  fraud  constituting
dishonesty  or  willful or  intentional  gross  misrepresentation  or willful or
intentional  gross  breach of  warranty,  covenant or  agreement,  be limited to
actual damages and shall not be entitled to any type of punitive,  consequential
(including without limitation loss of anticipated  profits) or any other measure
of damages permitted by Applicable Law or otherwise. The arbitrators shall award
fees and  expenses  (including  reasonable  attorney  fees and  expenses) to the
prevailing party or, if they determine there is no prevailing party, as they may
otherwise determine.

         7.15 Mutual Drafting. This Agreement is the result of the joint efforts
of DBC and ATS,  and  each  provision  hereof  has been  subject  to the  mutual
consultation,  negotiation  and  agreement  of the parties and there shall be no
construction  against  either  party based on any  presumption  of that  party's
involvement in the drafting thereof.




                                      -17-


<PAGE>



         IN  WITNESS  WHEREOF,  ATS and DBC have  caused  this  Agreement  to be
executed  as of the  date  first  written  above by  their  respective  officers
thereunto duly authorized.

                                       American Tower Systems, Inc.


                                       By:_____________________________________
                                            Name:
                                            Title:

                                       DB Consultants, Inc.


                                       By:______________________________________
                                            Name:
                                            Title:




                                      -18-


<PAGE>



                                                                      APPENDIX A

                                   DEFINITIONS

         As used in this Agreement,  unless the context otherwise requires,  the
following  terms  (or any  variant  in the  form  thereof)  have  the  following
respective  meanings.  Terms  defined in the  singular  shall have a  comparable
meaning when used in the plural, and vice versa, and the reference to any gender
shall be deemed to include all genders.  Unless otherwise defined or the context
otherwise clearly  requires,  terms for which meanings are provided herein shall
have such meanings when used in the DBC Disclosure Schedule, and each Collateral
Document  executed  or required  to be  executed  pursuant  hereto or thereto or
otherwise delivered,  from time to time, pursuant hereto or thereto.  References
to "hereof", "herein" or similar terms are intended to refer to the Agreement as
a whole and not a  particular  Section,  and  references  to "this  Section" are
intended to refer to the entire Section and not a particular subsection thereof.
The term "either party" shall, unless the context otherwise  requires,  refer to
DBC and ATS.

         Acceptance Notice shall have the meaning given to it in Section 2.2(c).

         Accounts Receivable shall mean (a) any and all rights to the payment of
money or other forms of  consideration  of any kind at any time now or hereafter
owing or to be owing to DBC  attributable  to the  ownership or operation of the
DBC Business (whether  classified under the Uniform Commercial Code of any state
as accounts,  contract rights, chattel paper, general intangibles or otherwise),
including  without  limitation  accounts  receivable,  letters of credit and the
right to receive payment thereunder, chattel paper, insurance proceeds, contract
rights, notes, drafts, instruments, documents, acceptances, and all other debts,
obligations  and  liabilities  in whatever form now or hereafter  owing from any
other Person, all guarantees, security and Liens for the payment of any thereof,
and all of DBC's  rights  to  goods,  now  owned  or  hereafter  acquired,  sold
(delivered,  undelivered,  in  transit  or  returned)  which may be  represented
thereby; and (b) all proceeds of any of the foregoing.

         adverse,  adversely, when used alone or in conjunction with other terms
(including  without  limitation  "affect," "change" and "effect") shall mean any
Event which is reasonably likely, in the reasonable business judgment of ATS, to
be expected to (a)  adversely  affect the  validity  or  enforceability  of this
Agreement  or  the  likelihood  of  consummation  of  the  Transactions,  or (b)
adversely affect the business, operations,  management, properties or prospects,
or the  condition,  financial  or other,  or  results  of  operation  of the DBC
Business, or (c) impair DBC's ability to fulfill its obligations under the terms
of this Agreement,  or (d) adversely affect the aggregate rights and remedies of
ATS under this Agreement.  Notwithstanding  the foregoing,  and anything in this
Agreement to the contrary  notwithstanding,  any Event  generally  affecting the
economy or the tower  communications  business shall not be deemed to constitute
such a change, affect or effect.

         Affiliate,  Affiliated shall mean, with respect to any Person,  (a) any
other Person at the time  directly or indirectly  controlling,  controlled by or
under direct or indirect  common control with such Person,  (b) any other Person
of which such Person at the time owns, or has the right to acquire,  directly or
indirectly,  twenty  percent  (20%) or more of any class of the capital stock or
beneficial  interest,  (c) any other Person  which at the time owns,  or has the
right to acquire,  directly or  indirectly,  twenty percent (20%) or more of any
class of the  capital  stock or  beneficial  interest  of such  Person,  (d) any
executive  officer  or  director  of  such  Person,  (e)  with  respect  to  any
partnership,  joint venture or similar Entity, any general partner thereof,  and
(f) when used with respect to an  individual,  shall  include any member of such
individual's immediate family or a family trust.


                                      


<PAGE>



         Agreement shall mean this Agreement as originally in effect, including,
unless the context  otherwise  specifically  requires,  this Appendix A, the DBC
Disclosure  Schedule  and all exhibits  hereto,  and as any of the same may from
time to time be supplemented, amended, modified or restated in the manner herein
or therein provided.

         Applicable Law shall mean any Law of any Authority, whether domestic or
foreign,  including  without  limitation  the  FCA  and all  federal  and  state
securities and  Environmental  Laws, to which a Person is subject or by which it
or any of its business or operations is subject or any of its property or assets
is bound.

         Assets shall mean the business and the tangible and  intangible  assets
used in  connection  with the conduct of the business or  operations  of the DBC
Business,  which  business  and  assets  are  being  exchanged,  transferred  or
otherwise conveyed hereunder, which are the following:

                  (a) the Private Authorizations;

                  (b) the Contracts (other than the DBC Nonassumed Obligations);

                  (c)  all   Intellectual   Property   and   other   proprietary
         information,  which  relate  to the  DBC  Business,  including  without
         limitation,  technical  information  and data,  machinery and equipment
         warranties, maps, computer discs and tapes, plans, diagrams, blueprints
         and schematics,  including filings with all Authorities which relate to
         the DBC Business;

                  (d) all claims,  choses in action and rights under  warranties
         relating to the DBC Business or any of the DBC Assets;

                  (e)  all  books  and  records  relating  to the  ownership  or
         operation  of the  DBC  Assets  or the  conduct  of the  DBC  Business,
         including  executed  copies of Material  Agreements  and other  written
         Contracts,  and all  records  required  by  Applicable  Law to be kept,
         subject  to the right of the  conveying  party to have  such  books and
         records  made  available  to it for  such  time  as  may be  reasonably
         required in connection with audits, defense or prosecution of lawsuits,
         or other legitimate  business  purposes.  The records  described herein
         shall not  include  corporate  seals,  certificates  of  incorporation,
         minute books,  stock books,  tax returns or other records  having to do
         with the corporate organization of DBC; and

                  (f)  any  and all  products,  profits  and  proceeds  of,  and
         including  without  limitation  any Claims with  respect to, any of the
         foregoing.

         ATS shall have the meaning given to it in the Preamble.

         Authority shall mean any governmental or quasi-governmental  authority,
whether  administrative,  executive,  judicial,  legislative  or  other,  or any
combination   thereof,   including  without   limitation  any  federal,   state,
territorial,   county,   municipal  or  other   government  or  governmental  or
quasi-governmental agency, arbitrator,  authority,  board, body, branch, bureau,
central bank or comparable  agency or Entity,  commission,  corporation,  court,
department,  instrumentality,  master, mediator, panel, referee, system or other
political unit or  subdivision or other Entity of any of the foregoing,  whether
domestic or foreign., including without limitation the FCC.

         Benefit Arrangement shall mean any material benefit arrangement that is
not a Plan,  including  (a)  any  employment  or  consulting  agreement  (b) any
arrangement providing for insurance coverage or workers' compensation  benefits,
(c) any  incentive  bonus or deferred  bonus  arrangement,  (d) any  arrangement
providing

                                       A-2


<PAGE>



termination   allowance,   severance  or  similar   benefits,   (e)  any  equity
compensation plan, (f) any deferred  compensation plan, and (g) any compensation
policy and  practice,  but only to the  extent  that it covers or relates to any
officer, employee or other Person involved in the ownership and operation of the
Assets or the conduct of the business of the DBC Business.

         Claims shall mean any and all debts, liabilities,  obligations, losses,
damages,  deficiencies,  assessments  and  penalties,  together  with all  Legal
Actions, pending or threatened, claims and judgments of whatever kind and nature
relating  thereto,  and all fees, costs,  expenses and disbursements  (including
without  limitation  reasonable  attorneys'  and  other  legal  fees,  costs and
expenses) relating to any of the foregoing.

         Closing shall have the meaning given to it in Section 2.3.

         Closing Date shall have the meaning given to it in Section 2.3.

         COBRA shall mean the Consolidated Omnibus Budget  Reconciliation Act of
1985,  as  amended,  as set  forth  in  Section  4980B of the Code and Part 6 of
Subtitle B of Title I of ERISA.

         Code shall mean the Internal  Revenue  Code of 1986,  and the rules and
regulations  thereunder,  all as from time to time in effect,  or any  successor
law,  rules or  regulations,  and any  reference to any  statutory or regulatory
provision  shall be deemed  to be a  reference  to any  successor  statutory  or
regulatory provision.

         Collateral Document shall mean the Indemnity Agreement,  bills of sale,
assignments  of  intangibles,  assumption  agreements  with  respect  to the DBC
Assumed Obligations,  other instruments of conveyance and assignment  sufficient
to vest in ATS title to all of the other DBC  Assets and the DBC  Business,  and
any other agreement, certificate, contract, instrument, notice, opinion or other
document  delivered  pursuant  to  the  provisions  of  this  Agreement  or  any
Collateral Document.

         Collection Period shall have the meaning given to it in Section 2.4.

         Contract, Contractual Obligation shall mean any agreement, arrangement,
commitment,  contract, covenant,  indemnity,  undertaking or other obligation or
liability  which  involves  the  ownership or operation of the DBC Assets or the
conduct of the DBC Business.

         Control (including the terms  "controlled,"  "controlled by" and "under
common control with") means the possession, directly or indirectly or as trustee
or executor,  of the power to direct or cause the direction of the management or
policies of a Person,  or the disposition of such Person's assets or properties,
whether through the ownership of stock, equity or other ownership,  by contract,
arrangement or understanding,  or as trustee or executor,  by contract or credit
arrangement or otherwise.

         DBC shall have the meaning given to it in the Preamble.

         DBC Assets shall have the meaning given to it in Section 2.1.

         DBC Assumable  Agreements shall mean all obligations and liabilities of
DBC under all Leases, Material Agreements, Governmental Authorizations,  Private
Authorizations  and other  Contractual  Obligations not required to be listed on
Section 3.16 of the DBC Disclosure  Schedule entered into in the ordinary course
of business and relating to the  ownership or operation of any of the DBC Assets
or the
conduct of the DBC Business.

         DBC Assumed  Obligations  shall have the meaning given to it in Section
2.2(b).

                                       A-3


<PAGE>



         DBC  Business  shall have the meaning  given them in the first  Whereas
paragraph.

         DBC Disclosure Schedule shall mean the DBC Disclosure Schedule dated as
of the date of this Agreement delivered by DBC to ATS.

         DBC Employees shall have the meaning given it in the Section 3.15.

         DBC  Nonassumed  Obligations  shall  have  the  meaning  given to it in
Section 2.2(b).

         DBC Statements shall have the meaning given to it in Section 3.2(b).

         DBC's  knowledge  means the actual  knowledge  of any officer or senior
manager of DBC, as such  knowledge  exists on the date of this  Agreement and no
later date, after reasonable review of DBC's records.

         Employment Arrangement shall mean, with respect to DBC, any employment,
consulting,   retainer,   severance  or  similar  contract,   agreement,   plan,
arrangement or policy  (exclusive of any which is terminable  within thirty (30)
days without liability, penalty or payment of any kind by DBC or any Affiliate),
or providing for severance,  termination payments, insurance coverage (including
any self-insured arrangements), workers compensation, disability benefits, life,
health, medical, dental or hospitalization  benefits,  supplemental unemployment
benefits, vacation or sick leave benefits, pension or retirement benefits or for
deferred compensation, profit-sharing, bonuses, stock options, stock purchase or
appreciation rights or other forms of incentive  compensation or post-retirement
insurance,  compensation or post-retirement insurance, compensation or benefits,
or any collective bargaining or other labor agreement, whether or not any of the
foregoing is subject to the provisions of ERISA,  but only to the extent that it
covers or relates to any  officer,  employee  or other  Person  involved  in the
ownership or operation of the DBC Assets or the conduct of the DBC Business.

         Encumber  shall  mean  to  suffer,  accept,  agree  to  or  permit  the
imposition of a Lien.

         Entity shall mean any corporation,  firm, unincorporated  organization,
association,  partnership,  limited  liability  company,  trust  (inter vivos or
testamentary),  estate of a deceased, insane or incompetent individual, business
trust,  joint stock  company,  joint  venture or other  organization,  entity or
business,  whether acting in an individual,  fiduciary or other capacity, or any
Authority.

         Environmental Law shall mean any Law relating to or otherwise  imposing
liability or  standards of conduct  concerning  pollution or  protection  of the
environment,   including   without   limitation   Laws  relating  to  emissions,
discharges,  releases or  threatened  releases of  Hazardous  Materials or other
chemicals or  industrial  pollutants,  substances,  materials or wastes into the
environment (including,  without limitation,  ambient air, surface water, ground
water,  mining or reclamation or mined land, land surface or subsurface  strata)
or otherwise relating to the manufacture,  processing, generation, distribution,
use, treatment, storage, disposal, cleanup, transport or handling of pollutants,
contaminants,  chemicals or industrial, toxic or hazardous substances, materials
or wastes. Environmental Laws shall include without limitation the Comprehensive
Environmental  Response,  Compensation and Liability Act (42 U.S.C. Section 6901
et seq.), the Hazardous Material  Transportation Act (49 U.S.C.  Section 1801 et
seq.),  the Resource  Conservation  and Recovery Act (42 U.S.C.  Section 6901 et
seq.), the Federal Water Pollution Control Act (33 U.S.C. Section 1251 et seq.),
the Clean Air Act (42 U.S.C. Section 7401 et seq.), the Toxic Substances Control
Act (15 U.S.C. Section 2601 et seq.), the Occupational Safety and Health Act (29
U.S.C.  Section 651 et seq.), the Federal Insecticide  Fungicide and Rodenticide
Act (7  U.S.C.  Section  136 et  seq.),  and  the  Surface  Mining  Control  and
Reclamation  Act of 1977 (30 U.S.C.  Section  1201 et seq.),  and any  analogous
federal,   state,  local  or  foreign,  Laws,  and  the  rules  and  regulations
promulgated thereunder all as from time to time in effect, and

                                       A-4


<PAGE>



any reference to any statutory or regulatory  provision  shall be deemed to be a
reference to any successor statutory or regulatory provision.

         Environmental Permit shall mean any Governmental Authorization required
by or pursuant to any Environmental Law.

         ERISA shall mean the Employee  Retirement  Income Security Act of 1974,
and the rules and regulations thereunder, all as from time to time in effect, or
any successor law, rules or  regulations,  and any reference to any statutory or
regulatory  provision  shall  be  deemed  to be a  reference  to  any  successor
statutory or regulatory provision.

         ERISA  Affiliate  shall  mean any  Person  that is  treated as a single
employer with DBC under Sections 414(b),  (c), (m) or (o) of the Code or Section
4001(b)(1) of ERISA.

         Event  shall  mean the  existence  or  occurrence  of any act,  action,
activity,  circumstance,  condition,  event,  fact,  failure  to act,  omission,
incident or practice, or any set or combination of any of the foregoing.

         FCA  shall  mean the  Communication  Act of  1934,  and the  rules  and
regulations  thereunder,  all as from time to time in effect,  or any  successor
law,  rules or  regulations,  and any  reference to any  statutory or regulatory
provision  shall be deemed  to be a  reference  to any  successor  statutory  or
regulatory provision.

         FCC shall mean the Federal Communications  Commission and shall include
any successor Authority.

         GAAP shall mean means,  except to the extent that a deviation therefrom
is expressly required by this Agreement, such principles applied on a consistent
basis,  (i) as set forth in Opinions of the Accounting  Principles  Board of the
American  Institute  of  Certified  Public   Accountants   ("AICPA")  and/or  in
statements of the Financial  Accounting  Standards  Board that are applicable in
the  circumstances as of the date in question,  (ii) when not inconsistent  with
such  opinions  and  statements,  as set forth in other AICPA  publications  and
guidelines  and/or  (iii)  that  otherwise  arise by custom  for the  particular
industry, all as the same shall exist on the date of this Agreement.

         Governmental  Authorizations  shall  mean all  approvals,  concessions,
consents,   franchises,   licenses,  permits,  plans,  registrations  and  other
authorizations  of all  Authorities,  including  without  limitation  the United
States Forest  Service and the Federal  Aviation  Administration,  in connection
with the  ownership  or  operation  of the DBC Assets or the  conduct of the DBC
Business.

         Governmental  Filings shall mean all filings,  including  franchise and
similar Tax  filings,  and the payment of all fees,  assessments,  interest  and
penalties associated with such filings, with all Authorities.

         Hazardous  Materials  shall mean and include any  substance,  material,
waste, constituent, compound, chemical, natural or man-made element or force (in
whatever state of matter):  (a) the presence of which requires  investigation or
remediation under any Environmental  Law, or (b) that is defined as a "hazardous
waste" or  "hazardous  substance"  under any  Environmental  Law; or (c) that is
toxic, explosive,  corrosive,  etiologic,  flammable,  infectious,  radioactive,
carcinogenic,   mutagenic  or  otherwise  hazardous  and  is  regulated  by  any
applicable Authority or subject to any Environmental Law; or (d) the presence of
which on the real property owned or leased by such Person causes or threatens to
cause a nuisance upon any such real property or to adjacent  properties or poses
or threatens to pose a hazard to the health or safety of persons on or about any
such real property;  or (e) the presence of which on adjacent  properties  could
constitute a trespass by such Person; or (f) that contains gasoline, diesel fuel
or other  petroleum  hydrocarbons,  or any  by-products  or  fractions  thereof,
natural gas,  polychlorinated  biphenyls ("PCBs") and PCB-containing  equipment,
radon or

                                       A-5


<PAGE>



other radioactive elements, ionizing radiation,  electromagnetic field radiation
and other non-ionizing  radiation,  sonic forces and other natural forces, lead,
asbestos or  asbestos-containing  materials  ("ACM"),  or urea formaldehyde foam
insulation.

         Indebtedness  shall mean,  with  respect to any Person,  (a) all items,
except  items of  capital  stock or of  surplus  or of  general  contingency  or
deferred tax reserves or any minority  interest in any Subsidiary of such Person
to the extent such interest is treated as a liability with indeterminate term on
the  consolidated  balance sheet of such Person,  which in accordance  with GAAP
would be included in  determining  total  liabilities  as shown on the liability
side of a balance sheet of such Person, (b) all obligations  secured by any Lien
to which any property or asset owned or held by such Person is subject,  whether
or not the obligation  secured  thereby shall have been assumed,  and (c) to the
extent not  otherwise  included,  all  Contractual  Obligations  of such  Person
constituting  capitalized leases and all obligations of such Person with respect
to Leases constituting part of a sale and leaseback arrangement.

         Indebtedness  for Money Borrowed shall mean, with respect to DBC, money
borrowed  and  Indebtedness  represented  by notes  payable and drafts  accepted
representing   extensions  of  credit,  all  obligations   evidenced  by  bonds,
debentures,  notes or other similar instruments, the maximum amount currently or
at any time thereafter  available to be drawn under all  outstanding  letters of
credit  issued  for the  account of such  Person,  all  Indebtedness  upon which
interest  charges are  customarily  paid by such  Person,  and all  Indebtedness
(including  capitalized lease obligations)  issued or assumed as full or partial
payment  for  property  or  services,  whether  or not any such  notes,  drafts,
obligations or Indebtedness represent Indebtedness for money borrowed, but shall
not include (a) trade payables,  (b) expenses  accrued in the ordinary course of
business,  (c) customer advance payments and customer  deposits  received in the
ordinary course of business,  or (d) conditional sales agreements not prohibited
by the terms of this Agreement.

         Indemnity  Agreement  shall  have the  meaning  given to it in  Section
5.2(h).

         Intangible  Assets shall mean all assets and property  lacking physical
properties the evidence of ownership of which must  customarily be maintained by
independent  registration,  documentation,  certification,  recordation or other
means,  and  shall  include,   without  limitation,   concessions,   copyrights,
franchises,  license, patents, permits, service marks, trademarks,  trade names,
and applications with respect to any of the foregoing, technology and know-how.

         Intellectual  Property  shall  mean  the  following,   but  solely  and
exclusively to the extent it relates to the DBC Business, and not otherwise: any
and all research, information,  inventions,  designs, procedures,  developments,
discoveries,  improvements,  patents and applications  therefor,  trademarks and
applications therefor,  service marks, trade names,  copyrights and applications
therefor,    logos,   trade   secrets,   drawing,   plans,   systems,   methods,
specifications,  computer  software  programs,  tapes,  discs and  related  data
processing software (including without limitation object and source codes) owned
by  such  Person  or in  which  it has  an  ownership  interest  and  all  other
manufacturing,   engineering,  technical,  research  and  development  data  and
know-how made, conceived, developed and/or acquired by such Person, which relate
to the manufacture,  production or processing of any products  developed or sold
by such  Person or which are  within the scope of or usable in  connection  with
such Person's  business as it may, from time to time,  hereafter be conducted or
proposed to be conducted.

         Law shall mean any (a) administrative,  judicial,  legislative or other
action,  code,  consent  decree,  constitution,  decree,  directive,  enactment,
finding, guideline, law, injunction, interpretation, judgment, order, ordinance,
policy statement,  proclamation,  promulgation,  regulation,  requirement, rule,
rule of law, rule of public policy,  settlement  agreement,  statute, or writ of
any  Authority,  domestic  or  foreign;  (b) the common  law,  or other legal or
quasi-legal  precedent;  or (c)  arbitrator's,  mediator's  or referee's  award,
decision, finding

                                       A-6


<PAGE>



or recommendation; including, in each such case or instance, any interpretation,
directive,  guideline  or  request,  whether  or not  having  the  force  of law
including,  in all cases,  without  limitation any particular  section,  part or
provision thereof.

         Lease  shall mean any lease of  property,  whether  real,  personal  or
mixed, and all amendments thereto.

         Legal  Action  shall  mean,  with  respect to any  Person,  any and all
litigation   or   legal   or   other   actions,   arbitrations,   counterclaims,
investigations, proceedings, requests for material information by or pursuant to
the  order of any  Authority  or  suits,  at law or in  arbitration,  equity  or
admiralty,  whether or not  purported  to be  brought on behalf of such  Person,
affecting such Person or any of such Person's business, property or assets.

         Lien shall mean any of the  following:  mortgage;  lien  (statutory  or
other);  or other security  agreement,  arrangement or interest;  hypothecation,
pledge  or  other  deposit  arrangement;  assignment;  charge;  levy;  executory
seizure;   attachment;   garnishment;   encumbrance   (including  any  easement,
exception,  reservation or limitation,  right of way, and the like); conditional
sale,  title  retention  or other  similar  agreement,  arrangement,  device  or
restriction;   preemptive  or  similar  right;  any  financing  lease  involving
substantially  the same economic  effect as any of the foregoing;  the filing of
any financing  statement under the Uniform  Commercial Code or comparable law of
any  jurisdiction;  restriction on sale,  transfer,  assignment,  disposition or
other alienation; or any option, equity, claim or right of or obligation to, any
other Person, of whatever kind and character.

         Loss and Expense shall have the meaning given to it in Section 6.2.

         material, materially or materiality for the purposes of this Agreement,
shall, unless specifically stated to the contrary,  be determined without regard
to the fact that various  provisions of this Agreement set forth specific dollar
amounts.

         Material  Agreement  shall mean,  with respect to DBC, any  Contractual
Obligation  which (a) was not entered into in the  ordinary  course of business,
(b) was entered into in the ordinary  course of business  which (i) involved the
purchase,  sale or lease  of  goods  or  materials,  or  purchase  of  services,
aggregating  more than $20,000  during any of the last three fiscal years,  (ii)
extends for more than three (3)  months,  or (iii) is not  terminable  on thirty
(30) days or less  notice  without  penalty  or other  payment,  (c)  involves a
capitalized  lease  obligation or  Indebtedness  for Money  Borrowed,  (d) is or
otherwise   constitutes   a   written   agency,   broker,    dealer,    license,
distributorship,   sales  representative  or  similar  written  agreement,   (e)
accounted  for more than three  percent (3%) of the revenues of the DBC Business
in any of the last  three  fiscal  years or is likely to  account  for more than
three  percent  (3%) of revenues of the DBC Business  during the current  fiscal
year,  (f) is with the United States Forest Service or any other  Authority,  or
(g)  involves  the  management  by DBC of any  communication  tower of any other
Person.

         Multiemployer  Plan shall mean a Plan which is a  "multiemployer  plan"
within the meaning of Section 4001(a)3 of ERISA.

         Organic  Document  shall  mean,  with  respect  to a Person  which is a
corporation,  its charter,  its by-laws and all shareholder  agreements,  voting
trusts and similar arrangements applicable to any of its capital stock and, with
respect to a Person which is a  partnership,  its agreement and  certificate  of
partnership,  any  agreements  among  partners,  and any  management and similar
agreements  between the partnership  and any general  partners (or any Affiliate
thereof).


                                       A-7


<PAGE>



         PBGC shall mean the Pension Benefit Guaranty Corporation and any Entity
succeeding to any or all of its functions under ERISA.

         Permitted  Liens shall mean (a) Liens for current taxes not yet due and
payable, (b) such imperfections of title, easements,  encumbrances and mortgages
or  other  Liens,  if  any,  as  are  not,  individually  or in  the  aggregate,
substantial in character,  amount or extent and do not  materially  detract from
the value, or materially interfere with the present use, of the property subject
thereto or affected thereby,  or otherwise  materially impair the conduct of the
DBC  Business,  and (c) such other Liens as are  permitted by the  provisions of
this Agreement to be in place on the Closing Date.

         Person shall mean any natural individual or any Entity.

         Personal  Property shall mean all of the machinery,  equipment,  tools,
vehicles, furniture, leasehold improvements, office equipment, plant, inventory,
spare parts and other  tangible  personal  property which are owned or leased by
DBC and used or useful as of the date hereof in the  conduct of the  business or
operations  of the DBC  Business,  plus such  additions  thereto  and  deletions
therefrom arising in the ordinary course of business between the date hereof and
the Closing Date.

         Plan shall mean,  with respect to any Person and at a particular  time,
any employee benefit plan which is covered by ERISA and in respect of which such
Person or an ERISA  Affiliate is (or, if such plan were terminated at such time,
would under  Section 4069 of ERISA be deemed to be) an  "employer" as defined in
Section  3(5) of ERISA,  but only to the extent that it covers or relates to any
officer, employee or other Person involved in the ownership and operation of the
Assets or the conduct of the business of the DBC Business.

         Prepaid Expense shall mean any item which in accordance with GAAP would
be treated as an expense and which has been paid by DBC prior to the Closing and
relates to a period subsequent to the Closing.

         Prepaid Revenue shall mean any item which in accordance with GAAP would
be treated as revenue  and which has been  received  by DBC prior to the Closing
and relates to a period subsequent to the Closing.

         Private Authorizations shall mean all approvals, concessions, consents,
franchises,  licenses,  permits,  and other authorizations of all Persons (other
than   Authorities)   including   without   limitation  those  with  respect  to
Intellectual Property.

         Pro Ratable Taxes shall mean real estate and other property  Taxes,  ad
valorem Taxes,  gross  receipts  Taxes and similar Taxes,  but shall not include
federal, state or local income Taxes, franchise Taxes or other Taxes measured by
or based upon income or gain on sale or other disposition of property or assets.

         Purchase Price shall have the meaning given to it in Section 2.3.

         Regulations  shall mean the federal income tax regulations  promulgated
under  the Code,  as such  Regulations  may be  amended  from time to time.  All
references  herein to specific  sections of the Regulations shall be deemed also
to refer to any  corresponding  provisions  of succeeding  Regulations,  and all
references  to  temporary  Regulations  shall  be  deemed  also to  refer to any
corresponding provisions of final Regulations.

         Subsidiary shall mean, with respect to a Person,  any Entity a majority
of the capital stock  ordinarily  entitled to vote for the election of directors
of which,  or if no such voting stock is  outstanding,  a majority of the equity
interests of which, is owned directly or indirectly, legally or beneficially, by
such Person or any other Person controlled by such Person.

                                       A-8


<PAGE>



         Tax (and "Taxable",  which shall mean subject to Tax), shall mean, with
respect to any Person,  (a) all taxes (domestic or foreign),  including  without
limitation any income (net, gross or other including  recapture of any tax items
such as  investment  tax  credits),  alternative  or add-on  minimum tax,  gross
income,  gross receipts,  gains,  sales, use, leasing,  lease, user, ad valorem,
transfer, recording, franchise, profits, property (real or personal, tangible or
intangible),  fuel,  license,  withholding on amounts paid to or by such Person,
payroll,  employment,  unemployment,  social security, excise, severance, stamp,
occupation, premium, environmental or windfall profit tax, custom, duty or other
tax, or other like  assessment or charge of any kind  whatsoever,  together with
any  interest,  levies,  assessments,  charges,  penalties,  addition  to tax or
additional  amount  imposed  by any Taxing  Authority,  (b) any joint or several
liability of such Person with any other Person for the payment of any amounts of
the type  described in (a) and (c) any  liability of such Person for the payment
of any  amounts  of the type  described  in (a) as a result  of any  express  or
implied obligation to indemnify any other Person.

         Tax  Claim  shall  mean any Claim  which  relates  to Taxes,  including
without limitation the representations and warranties set forth in Section 3.11.

         Tax Return or Returns shall mean all returns, consolidated or otherwise
(including without limitation  information  returns),  required to be filed with
any Authority with respect to Taxes.

         Taxing   Authority  shall  mean  any  Authority   responsible  for  the
imposition of any Tax.

         Transactions shall mean the transactions contemplated to be consummated
on or prior to the Closing Date,  including without  limitation the purchase and
sale of the DBC Assets and the DBC  Business  and the  execution,  delivery  and
performance of the Collateral Documents.






                                       A-9






<TABLE>
<CAPTION>

                                           STATEMENT RE: COMPUTATION OF EARNINGS PER SHARE

                                                 American Radio Systems Corporation

                                                             EXHIBIT 11


(In thousands, except per share data)


                                                                       Three             Three               Six              Six
                                                                       Months            Months             Months           Months
                                                                       Ended             Ended              Ended            Ended
                                                                      June 30,          June 30,           June 30,         June 30,
                                                                        1996              1997               1996             1997
                                                                        ----              ----               ----             ----
<S>                                                                <C>               <C>                <C>              <C>    
PRIMARY:
Weighted average shares of common stock                                19,153            29,089             18,075           25,080
Add common stock equivalents in the form of stock options
   and warrants (using treasury stock method)                             989                                  951
                                                                   -----------       -----------        -----------      -----------
Weighted average common stock and common stock
   equivalents                                                         20,142            29,089             19,026           25,080
                                                                   ===========       ===========        ===========      ===========

Net income (loss):
Income (loss) before extraordinary loss after preferred
   dividends                                                       $    2,077        $   (5,673)        $    1,621       $  (14,595)
Extraordinary loss                                                                                                           (1,639)
                                                                   -----------       -----------        -----------      -----------
Net income (loss) applicable to common stockholders                $    2,077        $   (5,673)        $    1,621       $  (16,234)
                                                                   ===========       ===========        ===========      ===========

Primary per common share amounts:
Income (loss) before extraordinary loss                            $      .10        $     (.20)        $      .09       $     (.58)
Extraordinary loss                                                                                                             (.07)
                                                                   -----------       -----------        -----------      -----------
Net income (loss) applicable to common stockholders                $      .10        $     (.20)        $      .09       $     (.65)
                                                                   ===========       ===========        ===========      ===========

FULLY DILUTED (Not presented due to anti-dilution):
Weighted average shares of common stock                                19,153            29,089             18,075           25,080
Add common stock equivalents in the form of stock options
   and warrants (using treasury stock method)                             989             1,218                951            1,219
Assumed conversion of preferred stock                                   3,235             3,235              3,235            3,235
                                                                   -----------       -----------        -----------      -----------
Weighted average common stock and common stock
equivalents                                                            23,377            33,542             22,261           29,534
                                                                   ===========       ===========        ===========      ===========

Net income (loss):
Income (loss) before extraordinary loss after preferred
   dividends                                                       $    2,077        $   (5,673)        $    1,621       $  (14,595)
Add convertible preferred dividends                                       134             2,406                134            4,813
                                                                   -----------       -----------        -----------      -----------
Income (loss) after redeemable stock dividends before
   extraordinary loss                                              $    2,211        $   (3,267)        $    1,755       $   (9,782)
Extraordinary loss                                                                                                           (1,639)
                                                                   -----------       -----------        -----------      -----------
Net income (loss) applicable to common stockholders                $    2,211            (3,267)        $    1,755       $  (11,421)
                                                                   ===========       ===========        ===========      ===========

Fully diluted per common share amounts:
Income (loss) before extraordinary loss                            $      .10        $     (.10)        $      .08       $     (.33)
Extraordinary loss                                                                                                             (.06)
Net income (loss) applicable to common stockholders                $      .10        $     (.10)        $      .08       $     (.39)
</TABLE>







<TABLE>
<CAPTION>
                                 COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES

                                        American Radio Systems Corporation

                                                    EXHIBIT 12

(In thousands, except ratio data)

                                                               Three              Three              Six                Six
                                                               Months            Months             Months            Months
                                                               Ended              Ended             Ended              Ended
                                                              June 30,          June 30,           June 30,          June 30,
                                                                1996              1997               1996              1997
                                                                ----              ----               ----              ----
<S>                                                     <C>               <C>                 <C>              <C> 
Computation of Earnings:
Income (loss) from continuing operations before
    income taxes                                        $       4,018     $       3,733       $      3,191     $        (677)
Add:
Interest expense (1)                                            4,261            15,732              8,964            23,236
Rent expense (2)                                                  235               645                429             1,142
                                                        --------------    --------------      -------------    --------------
Earnings as adjusted                                            8,514            20,110             12,584            23,701


Computation of Fixed Charges:
Interest expense (1)                                            4,261            15,732              8,964            23,236
Rent expense (2)                                                  235               645                429             1,142
Preferred dividends                                               134             8,094                134            14,292
                                                        --------------    --------------      -------------    --------------
Fixed charges                                                   4,630            24,471              9,527            38,670

Ratio of earnings to combined fixed charges (3)                  1.84             -----               1.32             -----
         



<FN>
- ----------------------------------------

(1)  Interest expense includes amortization of deferred financing costs.
(2)  Rent expense fixed charge is assumed to be 30% of gross operating rent charges.
(3)  Earnings were insufficient to cover fixed charges for the three and six months ended June 30, 1997
     by approximately $4,361 and $14,969, respectively.
</FN>
</TABLE>




<TABLE> <S> <C>

<ARTICLE> 5
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               JUN-30-1997
<CASH>                                          14,469
<SECURITIES>                                         0
<RECEIVABLES>                                   82,284
<ALLOWANCES>                                     7,297
<INVENTORY>                                          0
<CURRENT-ASSETS>                               104,680
<PP&E>                                         153,044
<DEPRECIATION>                                  13,294
<TOTAL-ASSETS>                               1,918,238
<CURRENT-LIABILITIES>                           48,937
<BONDS>                                        760,563
                          209,478
                                          1
<COMMON>                                           294
<OTHER-SE>                                     683,402
<TOTAL-LIABILITY-AND-EQUITY>                 1,918,238
<SALES>                                              0
<TOTAL-REVENUES>                               154,345
<CGS>                                                0
<TOTAL-COSTS>                                  133,570
<OTHER-EXPENSES>                                21,452
<LOSS-PROVISION>                                 2,002
<INTEREST-EXPENSE>                              23,236
<INCOME-PRETAX>                                  (677)
<INCOME-TAX>                                     (374)
<INCOME-CONTINUING>                              (303)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                (1,639)
<CHANGES>                                            0
<NET-INCOME>                                   (1,942)
<EPS-PRIMARY>                                    (.65)
<EPS-DILUTED>                                    (.65)
        

</TABLE>

                                                 
                                                                    EXHIBIT 99.1


FOR IMMEDIATE RELEASE Contact:           Joe Winn, Chief Financial
                                         Officer or Bruce Danziger, Director
                                         of Investor Relations
                                         (617) 375-7500


                        AMERICAN RADIO SYSTEMS ANNOUNCES
                      RADIO STATION EXCHANGE WITH ENTERCOM

Boston,  Massachusetts--July 21, 1997--American Radio Systems Corporation (NYSE:
AFM) announced  that it has entered into a series of agreements  whereby it will
convey  radio  stations  KUDL-FM  and  WDAF-AM  in Kansas  City and  KCTC-AM  in
Sacramento, along with $3,000,000 in cash, to Entertainment Communications, Inc.
(Entercom) in exchange for radio station  KLOU-FM in St. Louis.  Consummation of
the transaction is subject to regulatory approval.

Steve  Dodge,  American's  Chairman  & CEO,  stated,  "We  are  fortunate  to be
acquiring  a terrific  radio  station in KLOU-FM  which will help  solidify  our
position in St. Louis. At the same time, we are pleased to be able to maintain a
significant  presence in Kansas City with four  excellent  FM's. The downside to
this  deal is that  John  Gehron  won't be able to hear his  music on one of our
stations in Sacramento."

American Radio Systems  Corporation began trading shares publicly in June, 1995.
The Company owns and/or programs and markets approximately 100 radio stations in
Boston, Seattle, Cincinnati,  Baltimore,  Pittsburgh,  Portland, Sacramento, St.
Louis,  Charlotte,  Kansas  City,  Hartford,  Las Vegas,  Austin,  Buffalo,  San
Francisco/San Jose, West Palm Beach, Rochester, and Fresno. The Company also has
options and/or agreements to buy additional radio stations in Boston,  Portland,
San Francisco/San Jose, Pittsburgh, West Palm Beach, and Riverside.





                                       ##


               116 Huntington Avenue, Boston, Massachusetts 02116
                        (617) 375-7500 FAX (617) 375-7575



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