SPECTRASITE HOLDINGS INC
8-K, 1999-09-17
COMMUNICATIONS SERVICES, NEC
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                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549


                                    FORM 8-K

                 Current Report Pursuant to Section 13 or 15(d)
                     of the Securities Exchange Act of 1934


       Date of Report (Date of earliest event reported): September 2, 1999

                           SpectraSite Holdings, Inc.
                   ------------------------------------------
             (Exact name of Registrant as specified in its charter)

                                    Delaware
                              --------------------
         (State or other jurisdiction of incorporation or organization)


               0-27217                          56-2027322
            -------------                   -------------------
        (Commission File Number)     (I.R.S. Employer Identification Number)


          8000 Regency Parkway
          Cary, North Carolina                       27511
      ------------------------------------        ------------
    (Address of principal executive offices)       (Zip Code)


                                 (919) 468-0112
                             -----------------------
              (Registrant's telephone number, including area code)


<PAGE>


Item 2.        Acquisition or Disposition of Assets.

     On September 2, 1999, SpectraSite Holdings,  Inc. completed the acquisition
of Westower  Corporation.  A copy of SpectraSite's  press release announcing the
consummation  of the  Westower  transaction  is being filed as Exhibit 99.1 with
this report.

     The Westower  acquisition  was  structured  as a merger of Westower  with W
Acquisition  Corp.,  a wholly owned  subsidiary of  SpectraSite  Holdings,  with
Westower as the surviving corporation. Westower stockholders, which consisted of
various  individual  and  institutional  investors,   received  1.81  shares  of
SpectraSite  common stock for each share of Westower common stock. In connection
with the merger,  SpectraSite  repaid  approximately  $70 million of outstanding
Westower indebtedness with cash-on-hand.

     As part of the merger,  SpectraSite  appointed Calvin J. Payne as Executive
Vice  President-Design and Construction and a director of SpectraSite  Holdings.
Mr. Payne was the founder and had been Chief Executive Officer of Westower.

     In addition prior to the Westower  merger,  the stockholders of SpectraSite
approved an increase in the  authorized  shares of common stock to  300,000,000.
SpectraSite  also  increased  the  aggregate  number of  shares of common  stock
available for grant under its stock incentive plan to 10,000,000.


Item 5.        Other Events

     SpectraSite's exchange offers for its outstanding 12% senior discount notes
due 2008 and its 11 1/4% senior  discount notes due 2009 expired at 5:00 p.m. on
September 15, 1999. All of the outstanding 2008 notes and all of the outstanding
2009 notes were tendered in the exchange offers.  A copy of SpectraSite's  press
release  announcing the  consummation  of the exchange  offers is being filed as
Exhibit 99.2 with this report.

Item 7.        Financial Statements and Exhibits.

         (a)   Financial statements of business acquired.

               Unaudited financial statements for the period ended June 30, 1999
               and 1998 were previously filed by Westower on Form 10-Q (File No.
               1-13491). Westower's audited financial statements as of September
               30,  1998 and for the seven  months then ended and as of February
               28,  1998 and  February  28,  1997 and for the three  years ended
               February  28,  1998  were  previously  filed  with  SpectraSite's
               registration statement on Form S-4 (File No. 333-84857)

          (b) Pro forma financial information.

               Pro forma  financial  statements  reflecting  the  acquisition of
               Westower as of and for the six months ended June 30, 1999 and for
               the year ended December 31, 1998 are being filed with this report
               beginning on page P-1.

         (c)   Exhibits.

<PAGE>


               2.1     Agreement  and Plan of Merger,  dated as of May 15, 1999,
                       among Westower Corporation,  SpectraSite  Holdings,  Inc.
                       and W  Acquisition  Corp.  (incorporated  by reference to
                       Exhibit 2.3 of  SpectraSite's  registration  statement on
                       Form S-4 (File No. 333-84857).

               3.1     Amendment No. 1 to the Amended and Restated Certificate
                       of Incorporation of SpectraSite Holdings, Inc.

               10.1    Employment Agreement, dated as of September 2, 1999, with
                       Calvin J. Payne.

               10.2    First Amendment to Credit  Agreement,  dated as of August
                       23, 1999, by and among SpectraSite Communications,  Inc.,
                       SpectraSite  Holdings,  Inc.,  CIBC World Markets  Corp.,
                       Credit Suisse First Boston and the other parties thereto.

               99.1    Press Release dated September 2, 1999

               99.2    Press Release dated September 15, 1999
<PAGE>

                       UNAUDITED PRO FORMA FINANCIAL DATA

General

     The  unaudited  pro  forma  financial  data  are  based  on the  historical
financial statements of SpectraSite Holdings,  Inc. and Westower Corporation and
the adjustments  described in the  accompanying  notes.  The unaudited pro forma
financial data do not purport to represent what SpectraSite's, Westower's or the
combined  entity's  financial  position or results of operations  would actually
have been if the  transactions  had in fact occurred on the dates  indicated and
are not  necessarily  representative  of  SpectraSite's  financial  position  or
results of operations at any future date or for any future period.

SpectraSite

     The following  unaudited pro forma consolidated  financial data present the
post-merger  unaudited pro forma consolidated balance sheet of SpectraSite as of
June 30,  1999 and both the  pre-merger  and  post-merger  unaudited  pro  forma
consolidated statements of operations of SpectraSite for the year ended December
31, 1998 and for the six months ended June 30, 1999. The  SpectraSite  pro forma
column  and  the  Westower  pro  forma  column   presented  in  the  post-merger
SpectraSite  unaudited pro forma  consolidated  statements of operations for the
six months ended June 30, 1999 and for the twelve months ended December 31, 1998
are derived from the pre-merger  SpectraSite and Westower pro forma consolidated
statements  of  operations  for  the  corresponding   periods.  The  post-merger
unaudited pro forma consolidated balance sheet data reflects the Westower merger
as if it had occurred on June 30, 1999.  The  unaudited  pro forma  consolidated
statement of  operations  data give effect to the following  transactions  as if
they had occurred on January 1, 1998:

o    the issuance and sale of SpectraSite's 12% senior discount notes due 2008;

o    the acquisition of 2,000  communications  towers from Nextel, the leaseback
     of antenna space by Nextel and SpectraSite's exclusive agreement to acquire
     or construct 1,700 additional sites for Nextel;

o    the issuance and sale of SpectraSite's 11 1/4% senior discount notes due
     2009;

o    the issuance and sale of SpectraSite's Series C preferred stock;

o    initial borrowings under SpectraSite's credit facility;

o    the  acquisition  of 45 towers  from  Airadigm  and the release of escrowed
     funds to SpectraSite; and

o    the consummation of the merger with Westower.

     Certain of the data presented in the "Nextel"  columns to the unaudited pro
forma statements of operations of SpectraSite are estimates  provided by Nextel.
Neither SpectraSite's independent accountants,  Nextel's independent accountants
nor Westower's  independent  accountants  have audited or otherwise  tested this
data.

     The  acquisition  of tower assets from Nextel and the  leaseback of antenna
space by Nextel are  presented  as if the  purchase  of assets had  occurred  on
January 1, 1998.  Adjustments  for  revenue are based on the terms of the master
site lease  agreement and on historical  co-location  revenues.  Adjustments  to
costs of operations consist of direct operating  expenses,  which include ground
lease  payments,   historical  routine  maintenance  costs  and  property  taxes
associated with the towers.  Depreciation expense is straight-line  depreciation
of the aggregate cost of the towers. Ground leases are non-cancelable  operating
leases,  generally for terms of five years and include options for renewal,  and
pro forma ground lease expense is based on executed  ground  leases.  Nextel has
leased space on each of the 2,000 towers we acquired,  primarily  for  five-year
terms with options for renewal.  The pro forma minimum ground lease expenses and
minimum rental income for these leases assuming the transaction occurred and the
related leases commenced January 1, 1998 are as follows:


                                  Ground Lease Expense    Rental Income
                                  -------------------------------------
                                           (dollars in thousands)
               1998.........           $ 17,648            $ 40,766
               1999.........             17,648              40,766
               2000.........             17,648              40,766
               2001.........             17,648              40,766
               2002.........             17,648              40,766
                                       --------            --------
                         Total         $ 88,240            $203,830
                                       ========            ========

                                      P-1
<PAGE>

     The  acquisition of tower assets from Airadigm and the leaseback of antenna
space by Airadigm  are  presented  as if the  purchase of assets had occurred on
January 1, 1998.  Adjustments for revenue are based on the executed tenant lease
terms for the  Airadigm  towers.  Cost of  revenues  represents  the cost of the
executed ground leases,  historical routine maintenance costs and property taxes
associated with the towers.  Depreciation expense is straight-line  depreciation
of the aggregate  cost of $11.25 million of the 45 towers.  The Airadigm  ground
leases are  non-cancelable  operating leases,  generally for terms of five years
and include options for renewal,  and pro forma ground lease expense is based on
executed  ground  leases.  Airadigm  has  leased  space  on these  towers  for a
five-year  term with  options  for  renewal.  Airadigm  has  recently  filed for
protection  under Chapter 11 of the U.S.  Bankruptcy Code. We cannot predict the
impact of this  proceeding  on our future  results of  operations  or  financial
condition. The pro forma minimum ground lease expenses and minimum rental income
for these  leases  assuming  the  transaction  occurred  and the related  leases
commenced January 1, 1998 are as follows:



                                  Ground Lease Expense    Rental Income
                                  -------------------------------------
                                           (dollars in thousands)
               1998.........           $   260              $1,007
               1999.........               260               1,007
               2000.........               260               1,007
               2001.........               260               1,007
               2002.........               260               1,007
                                       -------              ------
                 Total                 $ 1,300              $5,035
                                       =======              ======

Westower

     The following  unaudited pro forma consolidated  financial data of Westower
present  the  unaudited  pro forma  consolidated  statements  of  operations  of
Westower for the twelve months ended  December 31, 1998 and the six months ended
June 30, 1999.  The unaudited  consolidated  statement of  operations  data give
effect to the following transactions as if they had occurred on January 1, 1998:

o    the acquisition of Cord Communications, Inc.;

o    the acquisition of Summit Communications, LLC; and

o    the acquisition of communications towers from Koch Industries, Inc. and its
     affiliates.

     These  statements  include pro forma  adjustments to reflect the results of
operations  of Cord and Summit for the period from  January 1, 1998  through the
dates of acquisition,  August 31, 1998 and November 11, 1998, respectively,  and
give effect to the Koch tower  acquisition,  which occurred in February 1999, as
if this  acquisition  occurred  on  January 1, 1998.  In  addition  to the above
acquisitions,  from March 1, 1998 through June 30, 1999, Westower acquired Jovin
Communications, Inc., Acier Filteau, Inc., CNG Communications, Inc., Teletronics
Management   Services,   Inc.,   Cypress   Real  Estate   Services,   Inc.   and
Telecommunications  R.  David.  These  acquisitions,  which are  included in the
historical  financial  statements of Westower,  were not considered  significant
transactions, individually or in the aggregate, and therefore, were not included
in the unaudited pro forma consolidated statement of operations of Westower.

     The  acquisition  of tower  assets from Koch and the  leaseback  of antenna
space by Koch are presented as if the purchase of assets had occurred on January
1, 1998.  Adjustments  for revenue are based on the executed  tenant lease terms
for the Koch  towers.  Adjustments  to costs of  operations  consist  of  direct
operating  expenses,  which include  ground lease  payments,  estimated  routine
maintenance  costs,  property  taxes and insurance  associated  with the towers.
Depreciation  expense is  straight-line  depreciation  of the aggregate  cost of
$17.0 million. The Koch ground leases are non-cancelable  operating leases for a
term of 49 years, and pro forma ground lease expense is based on executed ground
leases.  Koch has leased space on these towers for a ten-year  term with options
for renewal.  The pro forma  minimum  ground lease  expenses and minimum  rental
income for these leases assuming the transaction occurred and the related leases
commenced January 1, 1998 are as follows:

                                  Ground Lease Expense    Rental Income
                                  -------------------------------------
                                           (dollars in thousands)
               1998.........           $    439            $  1,364
               1999.........                439               1,364
               2000.........                439               1,364
               2001.........                439               1,364
               2002.........                439               1,364
               Thereafter...             19,322               6,824
                                       --------            --------
                         Total         $ 21,517            $ 13,644
                                       ========            ========

                                      P-2
<PAGE>



                     POST-MERGER SPECTRASITE HOLDINGS, INC.

                 Unaudited Pro Forma Consolidated Balance Sheet
                               As of June 30, 1999

                                 (in thousands)

<TABLE>
<CAPTION>

                                           SpectraSite   Westower      Merger          SpectraSite
                                           Historical    Historical   Adjustments       Pro Forma
                                           -----------   ----------   -----------      ------------
Assets
Current assets:
<S>                                       <C>            <C>         <C>             <C>
  Cash and cash equivalents............     $ 237,393    $   4,204   $  (61,033)(a)  $  171,064
                                                                         (5,000)(b)
                                                                         (4,500)(c)
  Accounts receivable..................         4,037       20,506           -           24,543
  Earnings in excess of billings.......             -        6,758           -            6,758
  Inventory............................             -        3,133           -            3,133
  Related party advances and receivables            -          419           -              419
  Other current assets.................         2,926        1,964           -            4,890
                                               ------        -----      --------         -------
       Total current assets..........         244,356       36,984      (70,533)         210,807
  Property and equipment, net..........       619,544       50,217                       669,761
  Intangible assets....................         7,867       26,992        5,048(a)       212,216
                                                                        169,845(b)
                                                                          2,464(c)
  Deposits...............................      46,460        1,176           -            47,636
  Deferred debt issue costs..............      32,191        2,464       (2,464)(c)       32,191
  Other..................................         825        2,499           -             3,324
                                             --------      -------       -------       ---------
       Total assets..................       $ 951,243    $ 120,332    $  104,360      $1,175,935
                                             ========      =======       =======       =========
  Liabilities and shareholder's equity...
Current liabilities:
  Accounts payable.....................     $   4,653    $   8,374    $  (1,519)(b)   $   11,508
  Accrued and other current liabilities         4,769        1,909           -             6,678
  Billings in excess of costs and
    estimated  earnings...............             -         1,586           -             1,586
  Deferred revenue.....................         3,763          -             -             3,763
  Income taxes payable.................            -         2,450           -             2,450
  Deferred income taxes................            -           395           -               395
  Stockholder advances and notes payable
   to related parties....................          -           154           -               154
  Note payable.........................            -            68           -                68
  Current portion of long-term debt and
   capital lease obligations..........             -         1,576           -             1,576
                                               ------       ------       -------          ------
      Total current liabilities.....           13,185       16,512       (1,519)          28,178
Revolving credit facility and capital
lease obligations........................     150,000       57,059      (55,985)(a)      151,074
Deferred income taxes..................            -         2,977           -             2,977
2008 notes.............................       140,651          -             -           140,651
2009 notes.............................       347,546          -             -           347,546
                                              -------       ------      -------          -------
     Total liabilities.............           651,382       76,548      (57,504)         670,426
Shareholders' equity:
  Common stock.........................             3           85          (69)(b)           19
  Preferred stock (Series A, B and C)..       339,494          -             -           339,494
  Additional paid-in-capital...........         3,792       39,818      165,814 (b)      209,424
  Accumulated other comprehensive income            -         (237)         237 (b)           -
  Retained earnings (accumulated deficit)     (43,428)       4,118       (4,118)(b)      (43,428)
                                              -------       ------      -------          -------
     Total shareholders' equity....           299,861       43,784      161,864          505,509
                                              -------       ------      -------          --------
     Total liabilities
      and shareholders' equity....          $ 951,243    $ 120,332   $  104,360       $1,175,935
                                             ========      =======      =======        =========
</TABLE>


    See accompanying notes to unaudited pro forma consolidated balance sheet.

                                      P-3
<PAGE>.

                     POST-MERGER SPECTRASITE HOLDINGS, INC.

             Notes to Unaudited Pro Forma Consolidated Balance Sheet
                               As of June 30, 1999

                    (in thousands, except per share amounts)


(a)  Reflects  the  repayment  of  Westower's  credit  facility in the amount of
     $41,600  and  the  $19,433  repayment  of  its  $15,000  convertible  note,
     consisting  of a  carrying  value of $14,385  and a premium of $5,048.  The
     premium payment results in an increase in goodwill.  Subsequent to June 30,
     1999, Westower drew an additional $8,000 on its credit facility.

(b)  Reflects the allocation of the $210,648 purchase price,  Westower's payment
     of $4,500 for  transaction  costs,  of which $1,519 was accrued at June 30,
     1999, and the elimination of  stockholders'  equity in the Westower merger.
     The  purchase  price  consists  of the  issuance  of  15,497,220  shares of
     SpectraSite common stock valued at $205,648 in the aggregate, or $13.27 per
     share,  and cash paid of $5,000 for  transaction  costs.  The fair value of
     SpectraSite's common stock is based on the average price of Westower common
     stock for the three days before  closing.  The  Westower  merger  closed on
     September 2, 1999.

(c)  Reflects the write-off of $2,464 of unamortized  deferred  financing  costs
     associated  with  Westower's  credit  facility and its $15,000  convertible
     note.  The final  effect of this  adjustment  is an increase in goodwill of
     SpectraSite.





                                      P-4
<PAGE>

                      PRE-MERGER SPECTRASITE HOLDINGS, INC.

            Unaudited Pro Forma Consolidated Statement of Operations
                     For the Six Months Ended June 30, 1999

                    (in thousands, except per share amounts)

<TABLE>
<CAPTION>



                                                                              Pre-Merger
                                                                              SpectraSite
                                           Historical  Nextel      Airadigm   Pro Forma
                                           ----------  ------      --------   -----------
Revenues:
<S>                                        <C>       <C>           <C>        <C>

 Site leasing..........................    $13,014   $  14,954 (a) $    17(g) $  27,985
 Site acquisition......................      4,323           -           -        4,323
                                            ------      ------         ---       ------
 Total revenues........................     17,337      14,954          17       32,308
Cost of operations:
 Site leasing..........................      5,027       6,913 (b)       6(g)    11,946
 Site acquisition......................        893           -           -          893
                                             -----       -----         ---       ------
 Total cost of operations..............      5,920       6,913           6       12,839
Selling, general and administrative
 expenses..............................      9,660           - (c)       -        9,660
Depreciation and amortization..........      9,074      11,808 (d)      14       20,896
Restructuring and other non-recurring
 charges...............................        600           -           -          600
                                            ------      ------         ---       ------
Operating income (loss)................     (7,917)     (3,767)         (3)     (11,687)
Other income (expense):
 Interest income.......................      4,727           -           -        4,727
 Interest expense......................    (28,826)    (20,554) (e)      -      (40,380)
                                                         9,000  (f)
                                            ------      ------         ---       ------
Total other income (expense)..........     (24,099)    (11,554)          -      (35,653)
                                            ------      ------         ---       ------
Net loss...............................   $(32,016) $  (15,321)     $   (3)   $ (47,340)
                                            ======      ======         ===       ======

Net loss................................  ($32,016)
Accretion of redemption value of
 preferred stock........................      (760)
                                           -------
Net loss applicable to common
 shareholders...........................  ($32,776)
                                           ========
Net loss per share:
 Basic and diluted ....................  $  (17.30)
                                            =======

Weighted average number of shares
 of common stock outstanding:
   Basic and diluted ..................      1,895
                                             =====


</TABLE>

                  See accompanying notes to unaudited pro forma
                     consolidated statement of operations.

                                      P-5
<PAGE>


                      PRE-MERGER SPECTRASITE HOLDINGS, INC.

        Notes To Unaudited Pro Forma Consolidated Statement of Operations
                     For the Six Months Ended June 30, 1999

                             (dollars in thousands)

(a)  Consists of $2,610 of historical  co-location  revenues  received by Nextel
     prior to the  acquisition,  which are based on fixed  payment  lease terms.
     This information was provided to us by Nextel.  Also consists of $12,344 of
     additional  revenues to be recognized by SpectraSite under the terms of the
     Nextel master site lease agreement.

(b)  Reflects certain direct operating expenses,  primarily the cost of executed
     ground leases, historical routine maintenance and property taxes associated
     with the towers, paid by Nextel prior to the acquisition.

(c)  SpectraSite expects that it will incur incremental  operating expenses as a
     result of the Nextel  tower  acquisition.  Such  incremental  expenses  are
     currently  estimated to amount to  approximately  $875 per  quarter.  These
     incremental operating expenses are based upon management's estimates rather
     than on any contractual  obligation;  as such,  these amounts have not been
     presented  as  adjustments  in  the   accompanying   pro  forma   financial
     statements.

(d)  Reflects  the   depreciation  of  the  acquired  towers   calculated  on  a
     straight-line basis over 15 years.

(e)  Reflects adjustment to interest expense as if SpectraSite had issued its 11
     1/4%  senior  discount  notes  due 2009  and had  entered  into the  credit
     facility on January 1, 1998 as follows:

                 Pro forma interest expense:
                 Interest on 2009 notes at 12.00%...........      $ 13,794
                 Interest on $150,000 term loan.............         3,964
                 Amortization of debt issuance costs........         1,626
                 Commitment fees on unused portion of credit
                 facility........................................    1,170
                                                                    ------
                 Total adjustment...........................      $ 20,554
                                                                    ======

(f)  Reflects  elimination of a one-time  expense related to the issuance of 2.0
     million  shares of common  stock to various  parties as  consideration  for
     providing a financing  commitment  related to the Nextel tower  acquisition
     that was not utilized. These shares were valued at $9.0 million.

(g)  Reflects the acquisition of one tower from Airadigm, which tower was placed
     into  service  on June 30,  1999,  and one  month of  revenue  and  related
     expenses  for each of the four  Airadigm  towers  placed  into  service  on
     January 31, 1999.


                                      P-6

<PAGE>



                      WESTOWER CORPORATION AND SUBSIDIARIES

            Unaudited Pro Forma Consolidated Statement of Operations
                     For the Six Months Ended June 30, 1999

                    (in thousands, except per share amounts)

                                           Historical     Koch      Westower
                                           Westower   Adjustments  Pro Forma
                                           ---------  -----------  ---------
Revenues:
 Site leasing..........................     $    700     $ 227(a)  $     927
 Site construction.....................       42,767         -        42,767
                                              ------       ---        ------
 Total revenues........................       43,467       227        43,694
Cost of operations:
 Site leasing..........................          232       123(b)        355
 Site construction.....................       30,042         -        30,042
                                              ------       ---        ------
 Total cost of operations..............       30,274       123        30,397
Selling, general and administrative            9,127         -         9,127
 expenses..............................
Depreciation and amortization..........        1,948       142(c)      2,090
Restructuring and other non-recurring
 charges...............................        1,519         -         1,519
                                               -----       ---         -----
Operating income (loss)................          599       (38)          561
Other income (expense):
 Interest income.......................           99         -            99
 Interest expense......................       (1,479)     (213)(d)    (1,692)
 Other expense.........................          220         -           220
                                               -----       ---         -----
 Total other income (expense)..........       (1,160)     (213)       (1,373)
                                               -----       ---         -----
Income before income taxes.............         (561)     (251)         (812)
Provision (benefit) for income taxes...          776      (100)(e)       676
                                                 ---       ---         -----
Net loss...............................     $ (1,337)    $(151)      $(1,488)
                                               =====       ===         =====
Net loss per share:
 Basic and diluted.....................     $  (0.16)
                                               =====

Weighted average number of shares of
 common stock outstanding:
 Basic and diluted.....................        8,434
                                               =====

                  See accompanying notes to unaudited pro forma
                     consolidated statement of operations.

                                      P-7
<PAGE>


                      WESTOWER CORPORATION AND SUBSIDIARIES

        Notes To Unaudited Pro Forma Consolidated Statement of Operations
                     For the Six Months Ended June 30, 1999

(a)  Consists of additional  revenues to be recognized by Westower in connection
     with site lease agreements with Koch.

(b)  Reflects certain direct operating expenses,  primarily the cost of executed
     ground leases, estimated routine maintenance,  property taxes and insurance
     associated with the towers.

(c)  Reflects the  depreciation of the acquired towers from Koch calculated on a
     straight-line basis over 20 years.

(d)  Reflects  adjustment to interest  expense related to additional  borrowings
     under Westower's  credit facility to acquire the Koch towers,  based on the
     credit facility's approximate interest rate of 7.5%.

(e)  Reflects  income  tax  benefit  for the Koch  tower  operating  results  at
     Westower's estimated tax rate of 40%.



                                      P-8

<PAGE>


                     POST-MERGER SPECTRASITE HOLDINGS, INC.

            Unaudited Pro Forma Consolidated Statement of Operations
                     For the Six Months Ended June 30, 1999

                    (in thousands, except per share amounts)


<TABLE>
<CAPTION>

                                  Pre-Merger                              Post-Merger
                                 SpectraSite    Westower       Merger     SpectraSite
                                   Pro Forma     Pro Forma    Adjustments   Pro Forma
Revenues:
<S>                               <C>           <C>         <C>           <C>
 Site leasing...................  $   27,985    $     927    $      -     $    28,912
 Site construction..............          -        42,767        (948)(a)      41,819
 Site acquisition...............       4,323            -           -           4,323
                                      ------       ------         ---          ------
 Total revenues.................      32,308       43,694        (948)         75,054
Cost of operations:
 Site leasing...................      11,946          355           -          12,301
 Site construction..............          -        30,042        (568)(a)      29,474
 Site acquisition...............         893            -           -             893
                                      ------       ------         ---          ------
 Total cost of operations.......      12,839       30,397        (568)         42,668
Selling, general and
 administrative expenses........       9,660        9,127           -          18,787
Depreciation and amortization...      20,896        2,090       6,650 (b)      29,138
                                                                 (498)(c)
Restructuring and other
 non-recurring charges..........         600        1,519          -            2,119
                                       -----        -----      ------          ------
Operating income (loss).........     (11,687)         561      (6,532)        (17,658)
Other income (expense):
 Interest income................       4,727           99          -            4,826
 Interest expense...............     (40,380)      (1,692)      1,185 (d)     (40,887)
 Other expense..................          -           220          -              220
                                      ------        -----       -----          ------
 Total other income (expense)...     (35,653)      (1,373)      1,185         (35,841)
                                      ------        -----       -----          ------
Income before income taxes......     (47,340)        (812)     (5,347)        (53,499)
Provision (benefit) for income
 taxes..........................          -           676          -              676
                                      ------        -----       -----          ------
Net loss.........................   $(47,340)     $(1,488)    $(5,347)       $(54,175)
                                      ======        =====       =====          ======

Net loss per share:
 Basic and diluted..............                                             $  (2.91)(e)
                                                                                =====

Weighted average number of shares
 of common stock outstanding:
 Basic and diluted..............                                               18,607
                                                                               ======

</TABLE>


                       See accompanying notes to pro forma
                     consolidated statement of operations.

                                      P-9
<PAGE>


                     POST-MERGER SPECTRASITE HOLDINGS, INC.

        Notes to Unaudited Pro Forma Consolidated Statement of Operations
                     For the Six Months Ended June 30, 1999

                                 (in thousands)

(a)  Reflects the elimination of  intercompany  site  construction  revenues and
     costs of site  construction  for towers built by Westower  for  SpectraSite
     during the six months ended June 30, 1999.

(b)  Reflects  amortization  of  goodwill  as if  the  merger  of  Westower  and
     SpectraSite had occurred on January 1, 1998.  Goodwill is amortized over 15
     years.

(c)  Reflects  adjustments to eliminate  amortization of historical  goodwill of
     Westower of $818 and to convert Westower tower  depreciation  from 20 years
     to 15 years, increasing expense by $320.

(d)  Reflects  adjustments to eliminate interest expense as if Westower's credit
     facility and its $15,000  convertible note from BET Associates were paid in
     full on January 1, 1998.

(e)  SpectraSite's  earnings  per share for the six months  ended June 30,  1999
     reflects the adoption of Statement of Financial  Accounting  Standards  No.
     128, "Earnings Per Share", which requires companies to compute earnings per
     share under two different methods,  basic and diluted. The weighted average
     common shares outstanding  at June 30, 1999 reflects the issuance of 15,497
     shares of SpectraSite  common stock in exchange for all of the  outstanding
     shares of Westower common stock.

     Had SpectraSite been in a net income  position,  diluted earnings per share
     would have  included  potential  common shares  related to its  convertible
     preferred  stock and outstanding  options.  These  potential  common shares
     were not included in the diluted earnings per share calculation for the six
     months ended June 30, 1999 because the effect would have been antidilutive.

                                      P-10
<PAGE>


                      PRE-MERGER SPECTRASITE HOLDINGS, INC.

            Unaudited Pro Forma Consolidated Statements of Operations
                      For the Year Ended December 31, 1998

                    (in thousands, except per share amounts)

<TABLE>
<CAPTION>


                                                                             Pre-Merger
                                                                             SpectraSite
                                         Historical    Nextel     Airadigm   Pro Forma
Revenues:
<S>                                      <C>        <C>           <C>        <C>
 Site leasing........................    $    656   $  49,388(a)  $ 1,007    $  51,051
 Site acquisition....................       8,142          -            -        8,142
                                            -----      ------       -----       ------
 Total revenues......................       8,798      49,388       1,007       59,193
Cost of operations:
 Site leasing........................         299      22,830(b)      326       23,455
 Site acquisition....................       2,492           -           -        2,492
                                            -----      ------        ----       ------
 Total cost of operations............       2,791      22,830         326       25,947
Selling, general and administrative
 expenses............................       9,690           -(c)        -        9,690
Depreciation and amortization........       1,268      39,000(d)      750       41,018
                                            -----      ------         ---       ------
Operating income (loss)..............      (4,951)    (12,442)        (69)     (17,462)
Other income (expense):
 Interest income.....................       3,569           -           -        3,569
 Interest expense....................      (8,170)    (67,865)(e)       -      (76,035)
 Other expense.......................         473           -           -          473
                                            -----      ------         ---       ------
  Total other income (expense) ......      (4,128)    (67,865)          -      (71,993)
                                            -----      ------         ---       ------
Net loss.............................     $(9,079)  $ (80,307)    $   (69)   $ (89,455)
                                            =====     =======        ====       ======
Net loss.............................     $(9,079)
Accretion of redemption value of
 preferred stock.....................      (2,156)
                                            -----
Net loss applicable to common
 shareholders........................    $(11,235)
                                           ======
Net loss per share:
  Basic and diluted .................   $  (12.09)
                                            =====

Weighted average number of shares
 of common stock outstanding:
 Basic and diluted ..................         929
                                              ===

</TABLE>

                  See accompanying notes to unaudited pro forma
                      consolidated statement of operations.

                                      P-11
<PAGE>

                      PRE-MERGER SPECTRASITE HOLDINGS, INC.

        Notes to Unaudited Pro Forma Consolidated Statement of Operations
                      For the Year Ended December 31, 1998

                                 (in thousands)

(a)  Consists of $8,622 of historical  co-location  revenues  received by Nextel
     prior to the  acquisition,  which are based on fixed  payment  lease terms.
     This information was provided to us by Nextel.  Also consists of $40,766 of
     additional  revenues to be recognized by SpectraSite under the terms of the
     Nextel master site lease agreement.

(b)  Reflects  certain  direct  operating   expenses,   primarily  ground  lease
     payments, historical routine maintenance and property taxes associated with
     the towers, paid by Nextel prior to the acquisition.

(c)  SpectraSite expects that it will incur incremental  operating expenses as a
     result of the Nextel  tower  acquisition.  Such  incremental  expenses  are
     currently  estimated  to amount to  approximately  $3,500  per year.  These
     incremental operating expenses are based upon management's estimates rather
     than on any contractual  obligation;  as such,  these amounts have not been
     presented  as  adjustments  in  the   accompanying   pro  forma   financial
     statements.

(d)  Reflects  the   depreciation  of  the  acquired  towers   calculated  on  a
     straight-line basis over 15 years.

(e)  Reflects  adjustment to interest  expense as if SpectraSite  had issued its
     12% senior  discount  notes due 2008 and its 11 1/4% senior  discount notes
     due 2009,  as well as completed  the Nextel tower  acquisition  and related
     financing  transactions,  on January 1, 1998.  The table below outlines the
     adjustment:

                Pro forma interest expense:
                Commitment fees on credit facility...........   $  4,000
                $150,000 of term loan at 8.50%...............     12,750
                $125,000 (gross proceeds) of 2008 notes at
                  12.00%.....................................     15,450
                $340,004 (gross proceeds) of 2009 notes at
                  11.25%.......................................   39,326
                Amortization of debt issuance costs..........      4,272
                Less: historical interest expense of 2008
                  notes........................................   (7,933)
                                                                   -----
                          Total adjustment...................   $ 67,865
                                                                  ======
                                      P-12
<PAGE>


                      WESTOWER CORPORATION AND SUBSIDIARIES

            Unaudited Pro Forma Consolidated Statements of Operations
                  For the Twelve Months Ended December 31, 1998

                    (in thousands, except per share amounts)

<TABLE>
<CAPTION>
                                           Historical                          Historical
                               --------------------------------           -------------------
                                                                Total
                                Westower   Westower   Westower  Westower   Cord      Summit                               Total
                                1/1/98-    3/1/98 -   10/1/98-  1/1/98-    1/1/98-   1/1/98-    Koch         Other        Westower
                                2/28/98    9/30/98    12/31/98  12/31/98   8/31/98   11/11/98   Adjustments  Adjustments  Pro Forma
                                -------    --------   --------  --------   -------   --------   -----------  -----------  ---------
Revenues
<S>                             <C>       <C>         <C>       <C>       <C>       <C>       <C>            <C>          <C>
  Site leasing.................. $   49    $    170   $     74  $    293  $     -    $    -    $  1,364(a)    $     -      $  1,657
  Site construction.............  7,784      31,774     24,914    64,472    6,714     8,818           -             -        80,004
                                  -----      ------     ------    ------    -----     -----       -----
  Total revenues................  7,833      31,944     24,988    64,765    6,714     8,818       1,364             -        81,661
Cost of operations:
 Site leasing..................     11          25         13        49       -         -          738(b)          -           787
  Site construction.............  5,971      23,833     18,131    47,935    6,219     6,707           -             -        60,861
                                  -----      ------     ------    ------    -----     -----         ---           ---        ------
 Total cost of operations......   5,982      23,858     18,144    47,984    6,219     6,707         738             -        61,648
Selling, general and
administrative                      991       4,958      4,258    10,207    2,636     1,040           -            73(f)     13,956
  expenses......................
Depreciation and amortization...    149         578        589     1,316      132       279         850(c)        673(g)      3,250
Merger related expenses.........      -         327         77       404       -         -            -             -           404
                                    ---       -----      -----     -----    -----       ---         ---           ----        -----
Operating income (loss).........    711       2,223      1,920     4,854   (2,273)      792        (224)         (746)        2,403
Other income (expense):
  Interest income...............     14         130         53       197        4        -            -             -           201
  Interest expense..............    (42)       (771)      (572)   (1,385)     (45)      (93)     (1,275)(d)         -        (2,798)
  Other income..................    128          (2)         -       126       17        30           -             -           173
                                    ---         ---        ---     -----     ----       ---       -----           -----       -----
  Total other income                100        (643)      (519)   (1,062)     (24)      (63)     (1,275)            -        (2,424)
                                    ---         ---        ---     -----     ----       ---       -----           -----       -----
 (expense) ......................
Income (loss) before income
  taxes.........................    811       1,580      1,401     3,792   (2,297)      729      (1,499)          (746)         (21)
Provision for (benefit from)
income taxes....................    556         351        610     1,517     (919)       -          (600)(e)       262(e)       260
                                    ---       -----        ---     -----    -----      ----        -----         -----         ----
Net income (loss)............... $  255    $  1,229    $   791  $  2,275  $(1,378)   $  729     $   (899)      $(1,008)     $  (281)
                                    ===       =====        ===     =====   ======      ====        =====         =====         ====
Net income per share
  Basic.................................                        $   0.34
                                                                    ====
  Diluted...............................                        $   0.29
                                                                    ====

Weighted average number of
 shares of common stock
 outstanding:
  Basic.................................                           6,786
                                                                   =====
  Diluted...............................                           7,770
                                                                   =====

</TABLE>

                  See accompanying notes to unaudited pro forma
                     consolidated statement of operations.

                                      P-13
<PAGE>

                      WESTOWER CORPORATION AND SUBSIDIARIES

        Notes to Unaudited Pro Forma Consolidated Statement of Operations
                  For the Twelve Months ended December 31, 1998


(a)  Consists of additional  revenues to be recognized by Westower in connection
     with site lease agreements with Koch.

(b)  Reflects  certain  direct  operating   expenses,   primarily  ground  lease
     payments,  estimated  routine  maintenance,  property  taxes and  insurance
     associated with the towers.

(c)  Reflects  the   depreciation  of  the  acquired  towers   calculated  on  a
     straight-line basis over 20 years.

(d)  Reflects  adjustment to interest  expense related to additional  borrowings
     under Westower's  credit facility to acquire the Koch towers,  based on the
     credit facility's approximate interest rate of 7.5%.

(e)  Reflects a tax benefit for the Koch tower operating results and an increase
     of the tax provision  based on the pro forma  operating  results related to
     the Cord and Summit acquisitions at Westower's estimated tax rate of 40%.

(f)  Reflects  adjustments  in  selling,  general,  and  administrative  expense
     related to compensation of former owners of Cord and Summit.

(g)  Reflects the  amortization  of goodwill as if the  acquisitions of Cord and
     Summit had each occurred on January 1, 1998.  Goodwill is amortized  over a
     period of 20 years.


                                      P-14
<PAGE>

                     POST-MERGER SPECTRASITE HOLDINGS, INC.

            Unaudited Pro Forma Consolidated Statement of Operations
                      For the Year Ended December 31, 1998

                    (in thousands, except per share amounts)
<TABLE>
<CAPTION>

                                        Pre-Merger                              Post-Merger
                                        Pro Forma     Westower       Merger     SpectraSite
                                        SpectraSite   ProForma    Adjustments   Pro Forma
                                        -----------   --------    -----------   -----------
Revenues:
<S>                                    <C>           <C>          <C>         <C>
 Site leasing........................  $   51,051     $   1,657   $       -    $    52,708
 Site construction...................           -        80,004      (2,004)(a)     78,000
 Site acquisition....................       8,142             -           -          8,142
                                           ------        ------       ------       -------
 Total revenues......................      59,193        81,661      (2,004)       138,850
Cost of operations:
 Site leasing........................      23,455           787           -         24,242
 Site construction...................          -         60,861      (1,403)(a)     59,458
 Site acquisition....................       2,492            -            -          2,492
                                           ------        ------       -----         ------
 Total cost of operations............      25,947        61,648      (1,403)        86,192
Selling, general and administrative
 expenses............................       9,690        13,956           -         23,646
Depreciation and amortization.........     41,018         3,250      13,299(b)      56,902
                                                                       (665)(c)
Merger related expenses...............          -           404           -            404
                                           ------         -----      ------         ------
Operating income (loss)...............    (17,462)        2,403     (13,235)       (28,294)
Other income (expense):...............
 Interest income.....................       3,569           201           -          3,770
 Interest expense....................     (76,035)       (2,798)      1,034(d)     (77,799)
 Other expense.......................         473           173           -            646
                                           ------         -----       -----         ------
 Total other income (expense) .......     (71,993)       (2,424)      1,034        (73,383)
                                           ------         -----      ------        -------
Income (loss) before income taxes.....    (89,455)          (21)    (12,201)      (101,677)
Provision for income taxes............          -           260        (153)(e)        107
                                           ------         -----      ------        -------
Net loss..............................   $(89,455)     $   (281)  $ (12,048)    $ (101,784)
                                           ======         =====      ======        =======


Net loss per share:
 Basic and diluted ..................                                               $(5.52)(f)
                                                                                      ====

Weighted average number of shares
 of common stock outstanding:
 Basic and diluted ..................                                                18,426
                                                                                     ======

</TABLE>


     See accompanying notes to unaudited pro forma statement of operations.

                                      P-15
<PAGE>

                     POST-MERGER SPECTRASITE HOLDINGS, INC.

        Notes to Unaudited Pro Forma Consolidated Statement of Operations
                      For the Year Ended December 31, 1998

                             (dollars in thousands)

(a)  Reflects the elimination of  intercompany  site  construction  revenues and
     costs of site construction for towers built by Westower for SpectraSite for
     the year ended December 31, 1998.

(b)  Reflects  amortization  of  goodwill  as if  the  merger  of  Westower  and
     SpectraSite had occurred on January 1, 1998.  Goodwill is amortized over 15
     years.

(c)  Reflects adjustments to eliminate  amortization of historical and pro forma
     goodwill  of Westower of $979 and to convert  Westower  tower  depreciation
     from 20 years to 15 years, increasing expense by $314.

(d)  Reflects  adjustments to eliminate interest expense as if Westower's credit
     facility and the $15,000  convertible  note were paid in full on January 1,
     1998.

(e)  Reflects a reduction of the tax provision based on the consolidated results
     of post-merger SpectraSite.

(f)  SpectraSite's  earnings  per share for the year  ended  December  31,  1998
     reflects the adoption of Statement of Financial  Accounting  Standards  No.
     128, "Earnings Per Share", which requires companies to compute earnings per
     share under two different methods,  basic and diluted. The weighted average
     common  shares  outstanding  at December 31, 1998  reflects the issuance of
     18,426  shares  of  SpectraSite  common  stock in  exchange  for all of the
     outstanding shares of Westower common stock.

     Had SpectraSite been in a net income  position,  diluted earnings per share
     would have  included  potential  common shares  related to its  convertible
     preferred stock and outstanding options. These potential common shares were
     not  included in the diluted  earnings per share  calculation  for the year
     ended December 31, 1998 because the effect would have been antidilutive.

                                      P-16

<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 hereunto duly authorized.

                                              SPECTRASITE HOLDINGS, INC.


     Dated: September 16, 1999                By: /s/David P. Tomick
                                                  ---------------------
                                                  David P. Tomick
                                                  Chief Financial Officer

<PAGE>


                                                                     Exhibit 3.1


                            CERTIFICATE OF AMENDMENT

                                     OF THE

                              AMENDED AND RESTATED

                          CERTIFICATE OF INCORPORATION

                                       OF

                           SPECTRASITE HOLDINGS, INC.

                      ------------------------------------

                         Adopted in accordance with the
                    provisions of Section 242 of the General
                    Corporation Law of the State of Delaware
                      ------------------------------------

     I, Stephen H. Clark,  President and Chief Executive  Officer of SPECTRASITE
HOLDINGS,  INC., a corporation organized and existing under and by virtue of the
General   Corporation   Law  of  the  State  of   Delaware,   as  amended   (the
"Corporation"), DO HEREBY CERTIFY as follows:

     FIRST: Article 4.1 of the Amended and Restated Certificate of Incorporation
of  the   Corporation  is  hereby  amended  by  deleting  in  its  entirety  and
substituting in lieu thereof the following new Article 4.1:

     "4.1 Authorized  Shares.  The total number of shares of capital stock which
the  Corporation  shall have authority to issue is 370,749,625  shares,  divided
into Three Hundred  Million  (300,000,000)  shares of Common  Stock,  $0.001 par
value per share ("Common Stock") and Seventy Million,  Seven Hundred  Forty-Nine
Thousand Six Hundred Twenty-Five  (70,749,625) shares of Preferred Stock, $0.001
par value per share (the  "Preferred  Stock").  The  Preferred  Stock shall have
three series: Series A Convertible Preferred Stock ("Series A Preferred


                                        1

<PAGE>






Stock"),  consisting  of Three  Million Four Hundred  Sixty-Two  Thousand  Eight
Hundred Thirty (3,462,830) shares; Series B Convertible Preferred Stock ("Series
B Preferred Stock"),  consisting of Seven Million (7,000,000) shares; and Series
C Convertible Preferred Stock ("Series C Preferred Stock"),  consisting of Sixty
Million Two Hundred Eighty-Six Thousand Seven Hundred  Ninety-Five  (60,286,795)
shares. As used herein,  the term "Preferred Stock" means the Series A Preferred
Stock,  the  Series  B  Preferred  Stock  and  the  Series  C  Preferred  Stock,
share-for-share  alike and without distinction as to class or series,  except as
otherwise set forth herein or as the context otherwise requires."

     SECOND: The foregoing amendment was duly adopted in accordance with Section
242 of the General  Corporation  Law of the State of Delaware by the affirmative
vote of the holders of a majority of the outstanding  shares of capital stock of
this Corporation entitled to vote at a duly held meeting of stockholders.

     IN WITNESS WHEREOF,  SPECTRASITE HOLDINGS, INC. has caused this Certificate
of Amendment to be signed by Stephen H. Clark, its President and Chief Executive
Officer,  who hereby  acknowledges  under  penalties  and perjury that the facts
herein stated are true and that this  Certificate is his act and deed, this ____
day of August, 1999.

                                         /s/ Stephen H. Clark
                                         Stephen H. Clark
                                         President and Chief Executive Officer




                                        2



                                                                   Exhibit 10.1



                              EMPLOYMENT AGREEMENT

                  EMPLOYMENT  AGREEMENT  dated as of  September  2,1999,  by and
between SpectraSite Holdings, Inc., a Delaware corporation (the "Company"),  and
CALVIN J. PAYNE (the "Employee").


                              W I T N E S S E T H:

                  WHEREAS,  pursuant to the Amended and Restated  Agreement  and
Plan of Merger among the Company, Westower Corporation, New W Acquisition Corp.,
SpectraSite, Inc., and W Acquisition Corp. (the "Merger Agreement"), the Company
agreed to enter into an Employment  Agreement with the Employee  effective as of
the date of the consummation of the Merger; and

                  WHEREAS,  the Company  desires to induce the Employee to enter
into employment with the Company for the period provided in this Agreement,  and
the  Employee  is  willing  to accept  such  employment  with the  Company  on a
full-time  basis,  all in  accordance  with the terms and  conditions  set forth
below;

                  NOW,  THEREFORE,  for  and in  consideration  of the  premises
hereof and the mutual  covenants  contained  herein,  the parties  hereto hereby
covenant and agree as follows:

                  1.  Employment.  (a) The Company  hereby  agrees to employ the
Employee,  and the Employee  hereby  agrees to accept such  employment  with the
Company, beginning on the date hereof and continuing for the period set forth in
Section 2 hereof, all upon the terms and conditions hereinafter set forth.

                           (b)      The Employee affirms and represents that as
of the  commencement  of his  employment by the Company on the date hereof he is
under no  obligation  to any former  employer or other party which is in any way
inconsistent  with,  or which  imposes  any  restriction  upon,  the  Employee's
acceptance  of  employment  hereunder  with the Company,  the  employment of the
Employee by the Company, or the Employee's undertakings under this Agreement.

                  2.  Term of  Employment.  (a)  Unless  earlier  terminated  as
provided in this  Agreement,  the term of the Employee's  employment  under this
Agreement  shall be for a period  beginning on the date hereof and ending on the
third anniversary of the date hereof (the "Initial Term").


                                        1

<PAGE>



                           (b)      The term of the Employee's employment under
this Agreement  shall be  automatically  renewed for  additional  one-year terms
(each a "Renewal  Term") upon the  expiration of the Initial Term or any Renewal
Term unless the Company or the Employee delivers to the other, at least one year
prior to the expiration of the Initial Term or the then current Renewal Term, as
the case may be, a written  notice  specifying  that the term of the  Employee's
employment  will not be renewed at the end of the Initial  Term or such  Renewal
Term,  as the case may be.  The  period  from the date  hereof  until  the third
anniversary  of said  date  or,  in the  event  that the  Employee's  employment
hereunder  is earlier  terminated  as provided  herein or renewed as provided in
this  Section  2(b),  such  shorter  or  longer  period,  as the case may be, is
hereinafter called the "Employment Term."

                  3. Duties.  The Employee  shall be employed as Executive  Vice
President--Construction   Operations  of  the  Company,   shall  faithfully  and
competently  perform  such  duties  as inhere in such  position  and shall  also
perform   and   discharge   such   other   executive   employment   duties   and
responsibilities as the Board of Directors and/or the Chief Executive Officer of
the Company shall from time to time  determine.  The Employee  shall perform his
duties  principally at Surrey,  British  Columbia with such travel to such other
locations from time to time as the Board of Directors and/or the Chief Executive
Officer of the Company may  reasonably  prescribe.  Except as may  otherwise  be
approved in advance by the Board of Directors and/or the Chief Executive Officer
of the Company,  and except during  vacation  periods and reasonable  periods of
absence due to sickness, personal injury or other disability, the Employee shall
devote his full business time  throughout  the  Employment  Term to the services
required of him  hereunder.  The Employee  shall  render his  business  services
exclusively to the Company and its  subsidiaries  during the Employment Term and
shall use his best  efforts,  judgment  and energy to improve  and  advance  the
business  and  interests  of  the  Company  and  its  subsidiaries  in a  manner
consistent with the duties of his position.  Nothing contained in this Section 3
shall  preclude  the  Employee  from  performing   services  for  charitable  or
not-for-profit  community  organizations,  provided that such  activities do not
interfere  with the Employee's  performance  of his duties and  responsibilities
under this Agreement.

                  4. Salary. As compensation for the performance by the Employee
of the services to be performed by the Employee  hereunder during the Employment
Term, the Company shall pay the Employee a base salary at the annual rate of One
Hundred Sixty-Five  Thousand Dollars ($165,000) (said amount,  together with any
increases  thereto  as may be  determined  from  time to time  by the  Board  of
Directors of the Company in its sole discretion,  being hereinafter  referred to
as "Salary"). Any Salary payable hereunder shall be paid in regular intervals in
accordance with the Company's payroll practices from time to time in effect.

                  5.       Benefits.  During the Employment Term, the Employee
 shall:


                                        2

<PAGE>




                                  (i)   be eligible to participate in employee
     fringe  benefits  and  pension  and/or  profit  sharing  plans  that may be
     provided by the Company for its senior  executive  employees in  accordance
     with the  provisions  of any such plans,  as the same may be in effect from
     time to time;

                                 (ii) be eligible to  participate in any medical
     and  health  plans or other  employee  welfare  benefit  plans  that may be
     provided by the Company for its senior  executive  employees in  accordance
     with the  provisions  of any such plans,  as the same may be in effect from
     time to time;

                                (iii) be entitled to the number of paid vacation
     days in each calendar year  determined by the Company from time to time for
     its senior executive  officers,  provided that such number of paid vacation
     days in each  calendar  year shall not be less than  twenty work days (four
     calendar  weeks);  the Employee shall also be entitled to all paid holidays
     given by the Company to its senior executive officers;

                                 (iv) be eligible for consideration by the Board
     of  Directors  of the Company for awards of stock  options  under any stock
     option  plan  which  may be  established  by the  Company  for  its and its
     subsidiaries'  key  employees,  the  amount,  if any,  of shares  for which
     options  may be granted to  Employee  to be in the sole  discretion  of the
     Board of Directors of the Company;

                                  (v) be entitled  to sick  leave,  sick pay and
     disability  benefits  in  accordance  with any  Company  policy that may be
     applicable to senior executive employees from time to time; and

                                 (vi)   be entitled to reimbursement for all
     reasonable and necessary  out-of-pocket  business  expenses incurred by the
     Employee in the performance of his duties  hereunder in accordance with the
     Company's normal policies from time to time in effect  (including,  without
     limitation, relocation expenses).

                  6.  Confidential  Information.  The Employee hereby covenants,
agrees and acknowledges as follows:

                           (a)      The Employee has and will have access to and
will  participate in the  development of or be acquainted  with  confidential or
proprietary information and trade secrets related to the business of the Company
and  any  present  or  future   subsidiaries   or   affiliates  of  the  Company
(collectively with the Company,  the "Companies"),  including but not limited to
(i) customer lists;  claims  histories,  adjustments and settlements and related
records and compilations of information;  the identity, lists or descriptions of
any new customers, referral sources or organizations;


                                        3

<PAGE>


financial  statements;  cost reports or other  financial  information;  contract
proposals  or bidding  information;  business  plans;  training  and  operations
methods  and  manuals;   personnel  records;  software  programs;   reports  and
correspondence;  and  management  systems,  policies  or  procedures,  including
related forms and manuals;  (ii) information  pertaining to future  developments
such as future  marketing  or  acquisition  plans or ideas,  and  potential  new
business  locations;  (iii) confidential or non-public  information  relating to
business  operations  and  strategic  plans  of third  parties  with  which  the
Companies have or may be assessing commercial arrangements,  including,  without
limitation,  site build and deployment plans and schedules, search ring and site
locations  or  potential   locations,   actual  or  projected   wireless  system
subscribers  and capital  expenditures  and operating cost  information  ("Third
Party Information") and (iv) all other tangible and intangible  property,  which
are used in the business and  operations  of the  Companies but not made public.
The  information  and trade  secrets  relating to the business of the  Companies
described hereinabove  (including Third Party Information) in this paragraph (a)
are  hereinafter  referred to collectively  as the  "Confidential  Information,"
provided  that  the  term   Confidential   Information  shall  not  include  any
information (x) that is or becomes generally publicly available (other than as a
result of violation of this  Agreement by the  Employee),  (y) that the Employee
receives on a  nonconfidential  basis from a source (other than the Companies or
their representatives) or, in the case of Third Party Information, from a source
(other than the Companies,  the third parties to which such information  relates
or their respective  representatives) that is not known by him to be bound by an
obligation of secrecy or  confidentiality to any of the Companies (or such third
parties,  in the  case  of  Third  Party  Information)  or (z)  that  was in the
possession  of the Employee  prior to disclosure by the Companies (or such third
parties, in the case of Third Party Information).

                           (b)      The Employee shall not disclose, use or make
known for his or  another's  benefit any  Confidential  Information  or use such
Confidential  Information  in any way except as is in the best  interests of the
Companies in the performance of the Employee's duties under this Agreement.  The
Employee may disclose  Confidential  Information  when required by a third party
and  applicable  law or judicial  process,  but only after  providing  immediate
notice to the Company at any third party's request for such  information,  which
notice shall include the Employee's intent with respect to such request.

                           (c)      The Employee acknowledges and agrees that a
remedy at law for any  breach or  threatened  breach of the  provisions  of this
Section 6 would be inadequate and, therefore, agrees that the Companies shall be
entitled to  injunctive  relief in addition  to any other  available  rights and
remedies in case of any such breach or  threatened  breach by the Employee  (and
the Employee hereby waives any requirement  that any of the Companies  provide a
bond or other security in connection with the issuance of any such  injunction);
provided, however, that nothing contained


                                        4

<PAGE>


herein shall be construed as  prohibiting  the Companies from pursuing any other
rights and remedies available for any such breach or threatened breach.

                           (d)      The Employee agrees that upon termination of
his employment  with the Company for any reason,  the Employee  shall  forthwith
return to the Company all  Confidential  Information in whatever form maintained
(including, without limitation, computer discs and other electronic media).

                           (e)      The obligations of the Employee under this
Section 6 shall, except as otherwise provided herein, survive the termination of
the Employment Term and the expiration or termination of this Agreement.

                           (f)      Without limiting the generality of Section
10 hereof, the Employee hereby expressly agrees that the foregoing provisions of
this Section 6 shall be binding upon the Employee's heirs,  successors and legal
representatives.

                  7.       Termination.  (a) The Employee's employment hereunder
shall be terminated upon the occurrence of any of the following:

                                  (i)   death of the Employee;

                                 (ii) the  Employee's  inability  to perform his
     duties on account of disability  or incapacity  for a period of one hundred
     eighty (180) or more days, whether or not consecutive, within any period of
     twelve (12) consecutive months;

                                (iii) the Company giving written notice,  at any
     time, to the Employee that the  Employee's  employment is being  terminated
     "for cause" (as defined below);

                                 (iv) the Company giving written notice,  at any
     time, to the Employee that the  Employee's  employment is being  terminated
     other than pursuant to clause (i), (ii) or (iii) above; or

                                  (v)   the Employee terminates his employment
     hereunder  for any  reason  whatsoever  (whether  by reason of  retirement,
     resignation or otherwise).

                  The following actions, failures and events by or affecting the
Employee shall constitute  "cause" for termination  within the meaning of clause
(iii) above:  (A) a conviction  of the Employee of, or the entering of a plea of
nolo contendere by the Employee with respect to, a felony, (B) dependence on, or
habitual  abuse of,  controlled  substances  or alcohol  (in the case of alcohol
abuse, that has a material adverse affect on


                                        5

<PAGE>


Employee's  performance  of his  obligations  under this  Agreement)  or acts of
dishonesty by the Employee that are materially detrimental to one or more of the
Companies,  (C) wilful  misconduct by the Employee that  materially  damages the
business of one or more of the Companies,  (D) gross  negligence by the Employee
in the  performance  of, or wilful  disregard  by the  Employee of, his material
obligations under this Agreement or otherwise relating to his employment,  which
gross  negligence  or  wilful  disregard  continues  unremedied  for a period of
fifteen (15) days after written notice thereof to the Employee or (E) failure by
the Employee to obey the  reasonable and lawful orders and policies of the Board
of  Directors  and/or  the Chief  Executive  Officer  that are  material  to and
consistent with the provisions of this Agreement  (provided that, in the case of
an indictment described in clause (A) above, and in the case of clauses (B), (C)
and (E) above,  the Employee shall have received written notice of such proposed
termination (which notice shall state the Sections of this Agreement pursuant to
which  such  termination  is  being  effected  and a  description  of the  facts
supporting such  termination)  and a reasonable  opportunity  (together with the
Employee's  counsel to discuss  the matter  with the Board of  Directors  of the
Company, followed by a notice that the Board of Directors of the Company adheres
to its position).

                           (b)      In the event that the Employee's employment
terminates pursuant to clause (i) or (ii) of Section 7(a) above or is terminated
by the Company pursuant to clause (iv) of Section 7(a) above, whether during the
Initial Term or during any Renewal Term pursuant to Section 2(b) above, then (i)
during the period  beginning on the date of such  termination  and ending on the
last day of the  Applicable  Period (as  defined in Section  9(a)),  the Company
shall pay to the  Employee,  as  severance  pay or  liquidated  damages or both,
monthly payments equal to one-twelfth of the rate per annum of his Salary at the
time of such  termination  provided,  however,  that no such  payments  shall be
required to be made if the Employee fails to comply with his  obligations  under
Section 9 below and (ii) the Company shall continue to provide the Employee with
the  health  insurance  benefits  provided  to other  employees  of the  Company
(including  employer  contributions) from the date of such termination until the
earlier  to occur of (x) the last day of the  Applicable  Period or (y) the date
upon which the Employee becomes eligible for coverage under the health insurance
plan of another employer

                           (c)      Notwithstanding anything to the contrary
expressed or implied herein,  except as required by applicable law and except as
set forth in Section 7(b) above,  the Company (and its affiliates)  shall not be
obligated to make any payments to the Employee or on his behalf of whatever kind
or nature  by  reason of the  Employee's  cessation  of  employment  (including,
without limitation, by reason of termination of the Employee's employment by the
Company's  for "cause"),  other than (i) such amounts,  if any, of his Salary as
shall have accrued and remained unpaid as of the date of said cessation and (ii)
such other amounts, if any, which may be then


                                        6

<PAGE>


otherwise payable to the Employee pursuant to the terms of the Company's
benefits plans.

                           (d)      No interest shall accrue on or be paid with
respect to any portion of any payments hereunder.

                  8. Non-Assignability. (a) Neither this Agreement nor any right
or interest  hereunder shall be assignable by the Employee or his  beneficiaries
or legal representatives without the Company's prior written consent;  provided,
however,  that  nothing in this Section  8(a) shall  preclude the Employee  from
designating  a beneficiary  to receive any benefit  payable  hereunder  upon his
death or incapacity.

                           (b)      Except as required by law, no right to
receive  payments  under  this  Agreement  shall  be  subject  to  anticipation,
commutation,  alienation,  sale,  assignment,  encumbrance,  charge,  pledge, or
hypothecation  or to  exclusion,  attachment,  levy  or  similar  process  or to
assignment by operation of law, and any attempt,  voluntary or  involuntary,  to
effect any such action shall be null, void and of no effect.

                  9.       Restrictive Covenants.

                           (a)      Competition.  During the Employment Term and
during the Applicable Period (as defined below),  the Employee will not directly
or indirectly (as a director, officer, executive employee, manager,  consultant,
independent contractor, advisor or otherwise) engage in competition with, or own
any interest in,  perform any services for,  participate in or be connected with
any  business  or  organization  which  engages in  competition  with any of the
Companies  within the  meaning  of Section  9(d),  provided,  however,  that the
provisions  of this Section 9(a) shall not be deemed to prohibit the  Employee's
ownership  of not more than two percent  (2%) of the total shares of all classes
of stock outstanding of any publicly held company, or ownership, whether through
direct or indirect stock  holdings or otherwise,  of one percent (1%) or more of
any other  business.  For purposes of this Agreement,  the  "Applicable  Period"
shall mean the  twelve  (12)  month  period  following  the  termination  of the
Employee's employment hereunder for any reason whatsoever.

                           (b)      Non-Solicitation.  During the Employment
Term and during  the  Applicable  Period,  the  Employee  will not  directly  or
indirectly  induce or attempt to induce any  management  employee  of any of the
Companies to leave the employ of the Company or such subsidiary or affiliate, or
in any way interfere with the relationship  between any of the Companies and any
employee thereof.

                           (c)      Non-Interference.  During the Employment
Term and during  the  Applicable  Period,  the  Employee  will not  directly  or
indirectly hire, engage,

                                        7

<PAGE>


send any work to,  place orders with,  or in any manner be  associated  with any
supplier,  contractor or other business relation of any of the Companies if such
action would be known by him to have a material  adverse effect on the business,
assets or financial  condition of any of the Companies or  materially  interfere
with  the  relationship  between  any  such  person  or  entity  and  any of the
Companies.

                           (d)      Certain Definitions.

                                  (i)   For purposes of this Section 9, a person
          or entity  (including,  without  limitation,  the  Employee)  shall be
          deemed to be a competitor of one or more of the Companies, or a person
          or entity  (including,  without  limitation,  the  Employee)  shall be
          deemed  to be  engaging  in  competition  with  one  or  more  of  the
          Companies,  if such  person  or  entity  engages  in the  business  of
          acquiring or constructing  towers for telecom carriers or operators or
          engaging in any other business engaged in by the Companies at the time
          of  termination  of the  Employee's  employment  with the Company,  in
          either case in the geographic region encompassing the service areas in
          which any of the  Companies  conduct,  or had an  established  plan to
          begin  conducting,  their businesses at the time of termination of the
          Employee's employment with the Company.

                                 (ii)  For   purposes  of  this  Section  9,  no
          corporation  or entity  that may be deemed to be an  affiliate  of the
          Companies solely by reason of its being controlled by, or under common
          control with,  Welsh,  Carson,  Anderson & Stowe VIII,  L.P. or any of
          their respective  affiliates other than the Companies,  will be deemed
          to be an affiliate of the Companies.

                           (e)      Certain Representations of the Employee.
In  connection  with the  foregoing  provisions  of this Section 9, the Employee
represents that his experience,  capabilities  and  circumstances  are such that
such  provisions  will not prevent him from earning a  livelihood.  The Employee
further  agrees that the  limitations  set forth in this  Section 9  (including,
without  limitation,  time  and  territorial  limitations)  are  reasonable  and
properly  required  for  the  adequate  protection  of the  current  and  future
businesses of the Companies. It is understood and agreed that the covenants made
by the  Employee in this Section 9 (and in Section 6 hereof)  shall  survive the
expiration or termination of this Agreement.

                           (f)      Injunctive Relief. The Employee acknowledges
and  agrees  that a remedy  at law for any  breach or  threatened  breach of the
provisions of Section 9 hereof would be inadequate and,  therefore,  agrees that
the  Company  and any of its  subsidiaries  or  affiliates  shall be entitled to
injunctive  relief in addition  to any other  available  rights and  remedies in
cases of any such breach or  threatened  breach (and the Employee  hereby waives
any requirement that any of the Companies provide a

                                        8

<PAGE>

bond or other security in connection with the issuance of any such  injunction);
provided,   however,  that  nothing  contained  herein  shall  be  construed  as
prohibiting  the Company or any of its affiliates from pursuing any other rights
and remedies available for any such breach or threatened breach.

                  10. Binding Effect. Without limiting or diminishing the effect
of the provisions affecting  assignment of this Agreement,  this Agreement shall
inure to the  benefit  of and be  binding  upon the  parties  hereto  and  their
respective heirs, successors, legal representatives and assigns.

                  11.  Notices.  All notices  which are required or may be given
pursuant  to the  terms of this  Agreement  shall  be in  writing  and  shall be
sufficient  in all  respects if given in writing and (i)  delivered  personally,
(ii) mailed by  certified or  registered  mail,  return  receipt  requested  and
postage prepaid,  (iii) sent via a nationally  recognized  overnight  courier or
(iv) sent via facsimile confirmed in writing to the recipient, if to the Company
at the Company's  principal  place of business,  and if to the Employee,  at his
home address most recently  filed with the Company,  or to such other address or
addresses  as either party shall have  designated  in writing to the other party
hereto, provided,  however, that any notice sent by certified or registered mail
shall be deemed  delivered  on the date of delivery as  evidenced  by the return
receipt.

                  12.  Governing  Law. This  Agreement  shall be governed by and
construed in accordance with the laws of the State of New York.

                  13.  Severability.  The Employee agrees that in the event that
any court of competent  jurisdiction  shall  finally hold that any  provision of
Section 6 or 9 hereof is void or constitutes an unreasonable restriction against
the Employee,  the  provisions of such Section 6 or 9 shall not be rendered void
but  shall  apply  with  respect  to such  extent as such  court may  judicially
determine constitutes a reasonable  restriction under the circumstances.  If any
part of this Agreement other than Section 6 or 9 is held by a court of competent
jurisdiction to be invalid, illegible or incapable of being enforced in whole or
in part by reason of any rule of law or public policy, such part shall be deemed
to be severed from the  remainder of this  Agreement for the purpose only of the
particular legal  proceedings in question and all other covenants and provisions
of this Agreement shall in every other respect continue in full force and effect
and no covenant or provision  shall be deemed  dependent upon any other covenant
or provision.

                  14. Waiver.  Failure to insist upon strict compliance with any
of the terms,  covenants  or  conditions  hereof shall not be deemed a waiver of
such term, covenant or condition,  nor shall any waiver or relinquishment of any
right or  power  hereunder  at any one or more  times  be  deemed  a  waiver  or
relinquishment of such right or power at any other time or times.

                                        9

<PAGE>

                  15.  Arbitration.  With the exception of any dispute regarding
the Employee's  compliance  with the  provisions of Sections 6 and 9 above,  any
dispute  relating to or arising out of the provisions of this Agreement shall be
decided by arbitration in Cary, North Carolina, in accordance with the Expedited
Arbitration Rules of the American Arbitration Association then obtaining, unless
the parties  mutually agree otherwise in a writing signed by both parties.  This
undertaking  to  arbitrate  shall  be  specifically  enforceable.  The  decision
rendered by the arbitrator  will be final and judgment may be entered upon it in
accordance with appropriate laws in any court having jurisdiction  thereof. Each
of the  parties  shall  pay his or its  own  legal  fees  associated  with  such
arbitration.

                  16.   Entire   Agreement;    Modifications.   This   Agreement
constitutes the entire and final expression of the agreement of the parties with
respect to the subject matter hereof and supersedes all prior  agreements,  oral
and  written,  between the parties  hereto  with  respect to the subject  matter
hereof.  This  Agreement  may be modified or amended  only by an  instrument  in
writing signed by both parties hereto.

                  17.      Counterparts.  This Agreement may be executed in two
or more  counterparts,  each of which  shall be deemed an  original,  but all of
which together shall constitute one and the same instrument.

                                       10

<PAGE>

                  IN WITNESS  WHEREOF,  the Company and the  Employee  have duly
executed  and  delivered  this  Agreement  as of the day and  year  first  above
written.


                                             SPECTRASITE HOLDINGS, INC.



                                             By /s/ Stephen H. Clark
                                             Name: Stephen H. Clark
                                             Title:  Chief Executive Officer



                                             /s/ Calvin J. Payne
                                             Calvin J. Payne





                                                                   Exhibit 10.2

                       FIRST AMENDMENT TO CREDIT AGREEMENT

              This FIRST  AMENDMENT TO CREDIT  AGREEMENT  (this  "Amendment") is
entered into as of August 23,  1999,  by and among  SpectraSite  Communications,
Inc., a Delaware  corporation (the "Borrower"),  SpectraSite  Holdings,  Inc., a
Delaware   corporation   ("Holdco"),   CIBC  World  Markets  Corp.  (f/k/a  CIBC
Oppenheimer   Corp.)  and  Credit  Suisse  First  Boston,   as  arrangers   (the
"Arrangers"), Credit Suisse First Boston, as syndication agent (the "Syndication
Agent"),  Canadian  Imperial  Bank of  Commerce,  as  administrative  agent (the
"Administrative Agent"), Canadian Imperial Bank of Commerce, as collateral agent
(the  "Collateral  Agent") and the other Credit  Parties  signatory  hereto (the
"Credit Parties").

                              W I T N E S S E T H:

              WHEREAS,  the Borrower,  Holdco,  the Arrangers,  the  Syndication
Agent, the Administrative Agent, the Collateral Agent and the Credit Parties are
parties to that certain Credit Agreement dated as of April 20, 1999 (as the same
may be amended, restated,  supplemented or otherwise modified from time to time,
the "Credit Agreement"); and

              WHEREAS,  Holdco  has  formed  a new  wholly-owned  Subsidiary,  W
Acquisition Corp., a Washington corporation ("Acquisition Corp."); and

              WHEREAS,  on May 15, 1999,  Holdco and Acquisition  Corp.  entered
into an  Agreement  and Plan of Merger  (as in effect  on the date  hereof,  the
"Merger  Agreement")  with  Westower  Corporation,   a  Washington   corporation
("Westower"),  pursuant  to which  Acquisition  Corp.  will  merge with and into
Westower,  which will then  become a  wholly-owned  Subsidiary  of Holdco  (such
transaction being hereinafter referred to as the "Westower Acquisition"); and

              WHEREAS,   pursuant  to  the  Merger   Agreement,   each  existing
shareholder  of Westower  will receive 1.81 shares of the common stock of Holdco
in  exchange  for each  share of the  common  stock  of  Westower  owned by such
shareholder,  which exchange shall result in the existing Westower  shareholders
becoming the owners of  approximately  twenty  percent (20%) of the total equity
interest of Holdco; and

              WHEREAS,   simultaneous   with  the   closing   of  the   Westower
Acquisition,   Holdco   will  repay   approximately   $70,000,000   in  existing
Indebtedness of Westower; and

              WHEREAS,   immediately  following  consummation  of  the  Westower
Acquisition,  Holdco  desires to  contribute  all of its  ownership  interest in
Westower to the Borrower,  and  thereupon,  Westower will become a  wholly-owned
Subsidiary of the Borrower; and

              WHEREAS,  the Borrower  desires to enter into an arrangement  with
NTA, LLC, a Massachusetts  limited liability company ("NTA"),  pursuant to which
the Borrower will,  among other things,  use proceeds of the Senior Loans and/or
cash on hand to purchase an equity interest

                                        1

<PAGE>



in, and to make certain loans to,  Concourse  Communications  Group,  L.L.C.,  a
Delaware  limited  liability  company  ("Newco"),  which will be a joint venture
between NTA and the Borrower (the "NTA Investment"); and

              WHEREAS,   the  Borrower  and  Holdco  have  requested,   and  the
Arrangers, the Syndication Agent, the Administrative Agent, the Collateral Agent
and the Credit Parties have agreed,  to amend the Credit  Agreement as set forth
herein in order to permit  consummation of the Westower  Acquisition and the NTA
Investment and the transactions contemplated in connection therewith;

              NOW THEREFORE,  in  consideration of the premises set forth above,
the  terms  and  conditions   contained  herein  and  other  good  and  valuable
consideration, the receipt and sufficiency of which are hereby acknowledged, the
parties  hereby  agree that all  capitalized  terms used  herein  shall have the
meanings ascribed thereto in the Credit Agreement,  as amended hereby, except as
otherwise  defined  or  limited  herein,  and  further  agree,  subject  to  the
conditions precedent to this Amendment hereinafter set forth, as follows:

              1.      Amendments to Article 1.

                      (a)      Article 1 of the Credit Agreement, Definitions,

               is hereby  modified  and  amended  by adding  the  following  new
               definitions to be placed in appropriate alphabetical order:

                      "'Foreign   Westower    Subsidiaries'   shall   mean   the
              Subsidiaries of Westower  existing as of the Westower  Acquisition
              Date that are not organized under the laws of the United States or
              any state thereof or the District of Columbia.

                      "'NTA' shall mean NTA, LLC, a Massachusetts limited
              liability company.

                      "'NTA   Investment'  shall  mean  the  Investment  by  the
              Borrower  in the NTA Joint  Venture  (including  the  purchase  of
              one-third (1/3) of the issued and outstanding  equity interests of
              the NTA Joint  Venture and the making of certain  loans to the NTA
              Joint Venture) in an aggregate amount not to exceed $20,000,000.

                      "'NTA  Investment  Documents' shall mean the duly executed
              documents   executed  in  connection   with  the  NTA  Investment,
              including,  without limitation,  copies of other consents required
              to be obtained in connection with the NTA Investment and copies of
              any  documentation  evidencing the credit facility extended to the
              NTA Joint Venture by the Borrower.

                      "'NTA Joint Venture'  shall mean Concourse  Communications
              Group,  L.L.C., a Delaware limited  liability  company and a joint
              venture between NTA and the Borrower.


                                        2

<PAGE>



                      "'W Acquisition  Corp.' shall mean W Acquisition  Corp., a
              Washington corporation and a wholly-owned Subsidiary of Holdco.

                      "'Westower' shall mean Westower Corporation, a Washington
              corporation.

                      "'Westower  Acquisition'  shall  mean the  Acquisition  of
              Westower  by  Holdco  pursuant  to  terms  and  conditions  of the
              Westower Merger Agreement and the subsequent transfer by Holdco to
              the Borrower of all of the issued and outstanding Capital Stock of
              Westower.

                      "'Westower  Acquisition Date' shall mean the date on which
              the Westower Acquisition shall be consummated.

                      "'Westower  Merger  Agreement'  shall  mean  that  certain
              Agreement and Plan of Merger dated as of May 15, 1999, as amended,
              among Westower,  Holdco and W Acquisition Corp., and all schedules
              and  exhibits   thereto  and  documents   executed  in  connection
              therewith."

                      (b)      Article 1 of the Credit Agreement, Definitions,
is hereby  further  modified and amended by deleting the existing  definition of
"Change of Control" and by substituting the following in lieu thereof:

                      "'Change of Control' shall mean any of the following:

                               "(i) prior to an  Initial  Public  Offering,  the
              Controlling  Shareholders cease to be the 'beneficial  owners' (as
              defined in Rules 13d-3 and 13d-5 under the Exchange Act), directly
              or indirectly,  of a majority in the aggregate of the total voting
              power of the voting  Capital Stock of Holdco,  whether as a result
              of issuance of  securities of Holdco,  any merger,  consolidation,
              liquidation  or  dissolution  of Holdco,  any  direct or  indirect
              transfer of  securities  by Holdco or otherwise  (for  purposes of
              this   clause  (i)  and  clause  (ii)   below,   the   Controlling
              Shareholders  shall  be  deemed  to  beneficially  own any  voting
              Capital  Stock of an entity (the  'specified  entity') held by any
              other  entity (the  'parent  entity')  so long as the  Controlling
              Shareholders  beneficially  own  (as  so  defined),   directly  or
              indirectly, in the aggregate a majority of the voting power of the
              voting Capital Stock of the parent entity); or

                               "(ii)  subsequent to an Initial Public  Offering,
              any 'person' (as such term is used in Sections  13(d) and 14(d) of
              the   Exchange   Act),   other   than  one  or  more   Controlling
              Shareholders,  is or becomes the  beneficial  owner (as defined in
              clause (i) above,  except  that for  purposes  of this clause (ii)
              such person shall be deemed to have 'beneficial  ownership' of all
              shares that any such person has the right to acquire, whether such
              right is  exercisable  immediately  or only  after the  passage of
              time),  directly or indirectly,  of more than thirty-five  percent
              (35%) of the total  voting  power of the voting  Capital  Stock of
              Holdco;  provided,  however, that the Controlling  Shareholders do
              not have  the  right or  ability  by  voting  power,  contract  or
              otherwise,

                                        3
<PAGE>


              to elect or  designate  for  election a  majority  of the board of
              directors of Holdco (for the  purposes of this clause  (ii),  such
              other  person  shall be  deemed  to  beneficially  own any  voting
              Capital Stock of a specified  entity held by a parent  entity,  if
              such  other  person is the  beneficial  owner (as  defined in this
              clause (ii)),  directly or  indirectly,  of more than  thirty-five
              percent  (35%) of the voting power of the voting  Capital Stock of
              such parent entity and the Controlling Shareholders  'beneficially
              own' (as defined in clause (i) above), directly or indirectly,  in
              the  aggregate  a lesser  percentage  of the  voting  power of the
              voting  Capital  Stock of such  parent  entity and do not have the
              right or ability by voting power, contract or otherwise,  to elect
              or designate  for election of a majority of the board of directors
              of such parent entity); or

                               "(iii)  during any period of two (2)  consecutive
              years (or, in the case this event occurs  within the first two (2)
              years after the Agreement  Date, such shorter period as shall have
              begun on the Agreement Date),  individuals who at the beginning of
              such period constituted the board of directors of Holdco (together
              with any new directors  whose  election by such board of directors
              or whose nomination for election by the shareholders of Holdco was
              approved by a vote of a majority of the  directors  of Holdco then
              still in office who were either directors at the beginning of such
              period or whose election or nomination for election was previously
              so approved)  cease for any reason to constitute a majority of the
              board of directors of Holdco then in office; or

                               "(iv) Holdco's  merger or  consolidation  with or
              into another  Person or the merger of another  Person with or into
              Holdco if Holdco's  securities  that are  outstanding  immediately
              prior to such  transaction and which represent one hundred percent
              (100%) of the aggregate  voting power of Holdco's Voting Stock are
              changed into or exchanged for cash, securities or property, unless
              pursuant to such  transaction  such securities are changed into or
              exchanged for, in addition to any other consideration,  securities
              of the surviving corporation that represent immediately after such
              transaction,  at least a majority of the aggregate voting power of
              the Voting Stock of the surviving corporation; or

                               "(v)      the sale of all or substantially all of
              Holdco's assets to another Person, other than a Controlling
              Shareholder or a Person that is controlled by the Controlling
              Shareholders; or

                               "(vi) the  failure of Holdco to own and  control,
              free of any Lien or  encumbrance  other than Liens in favor of the
              Collateral  Agent and Permitted  Liens, one hundred percent (100%)
              of the issued and outstanding Capital Stock of the Borrower (other
              than any Permitted High Yield Securities); or

                               "(vii)  the  failure of the  Borrower  to own and
              control, free of any Lien or encumbrance other than Liens in favor
              of the Collateral  Agent and Permitted  Liens, one hundred percent
              (100%) of the issued and  outstanding  Capital  Stock of Tower Sub
              and each of its  other  Subsidiaries  (other  than the  non-wholly
              owned Subsidiaries of Westower identified on Schedule 5.1(c))."

                                        4

<PAGE>



              2. Amendments to Section 2.7.

                      (a)      Section 2.7 of the Credit Agreement, Mandatory
Repayments,  is hereby modified and amended by deleting in its entirety existing
subsection (a) and by substituting the following in lieu thereof:

                      "(a)  Excess  Cash Flow.  Commencing  with  respect to the
              fiscal year of the Borrower  ended  December  31,  2002,  and with
              respect to each  fiscal  year  thereafter  during the term of this
              Agreement, on or prior to the Excess Cash Flow Recapture Date with
              respect  to each such  fiscal  year,  the  Borrower  shall  make a
              prepayment of the outstanding principal amount of the Senior Loans
              in an amount equal to  seventy-five  percent  (75%) of Excess Cash
              Flow for such fiscal year; provided,  however,  that, in the event
              that the Borrower shall have maintained a Leverage Ratio less than
              or equal to 4.00 to 1.00 for two (2) consecutive  fiscal quarters,
              the amount of the  prepayment  due under this Section 2.7(a) shall
              at all times  thereafter  be  reduced  to fifty  percent  (50%) of
              Excess  Cash  Flow.  The  amount  of any  prepayment  made  by the
              Borrower  pursuant  to this  Section  2.7(a)  shall be  applied to
              prepay the Senior Loans as set forth in Section 2.7(e) below."

                      (b)      Section 2.7 of the Credit Agreement, Mandatory
Repayments,  is hereby further  modified and amended by deleting in its entirety
existing subsection (c) and by substituting the following in lieu thereof:

                      "(c)  Debt or Equity  Issuance.  If,  after the  Agreement
              Date,  (i) Holdco shall conduct any public or private  issuance of
              any Funded  Debt or any  Convertible  Securities  (other  than the
              issuance  of the  Holdco  2009  Notes in an  amount  not to exceed
              $340,003,656)  (each a "Debt  Offering"),  or (ii) the Borrower or
              Holdco  shall issue any Capital  Stock or other  equity  interests
              (other than any Convertible  Securities) in the Borrower or Holdco
              (other  than from the  issuance  of (A) any  Permitted  High-Yield
              Securities which are equity securities to the extent that such Net
              Proceeds  shall be used to repay the Tranche C Loans as  permitted
              by  Section  2.5(b)(i)  hereof,  (B) such  Capital  Stock or other
              equity interests to any Shareholder or Affiliate thereof,  (C) any
              Capital  Stock  of  Holdco  issued  to  existing  shareholders  of
              Westower in connection with the Westower  Acquisition,  or (D) the
              issuance by Holdco of its common stock in connection with a public
              offering of its primary shares completed within one (1) year after
              the  Agreement  Date) (each an "Equity  Offering"),  the  Borrower
              shall prepay the Senior Loans as follows:

                               "(i) In the event  that the  Leverage  Ratio on a
                      pro forma basis after giving  effect to any Debt  Offering
                      shall be  greater  than 4.00 to 1.00,  an amount up to one
                      hundred  percent  (100%) of the Net  Proceeds  received by
                      Holdco  with  respect  to  such  Debt  Offering  shall  be
                      applied,  on the date of  receipt of the Net  Proceeds  of
                      such Debt  Offering by Holdco,  by the  Borrower to prepay
                      the Senior Loans as set forth in Section 2.7(e) hereof, to
                      the extent

                                        5

<PAGE>



                      necessary to cause the  Leverage  Ratio to be less than or
                      equal to 4.00 to 1.00  after  giving  effect  to such Debt
                      Offering.

                               "(ii) In the event that the  Leverage  Ratio on a
                      pro forma basis after giving effect to any Equity Offering
                      shall be greater than 4.00 to 1.00,  an amount up to fifty
                      percent (50%) of the excess,  if any, of (A) the aggregate
                      amount of Net Proceeds received by the Borrower or Holdco,
                      as applicable,  in respect of Equity  Offerings  conducted
                      during the term of this Agreement,  over (B) $250,000,000,
                      shall be  applied,  on the  date of  receipt  thereof,  to
                      prepay the Senior Loans,  as set forth in Section  2.7(e),
                      to the extent  necessary to cause the Leverage Ratio to be
                      less than or equal to 4.00 to 1.00 after giving  effect to
                      such Equity Offering."

              3. Amendments to Article 5.

                      (a)      Section 5.1(c) of the Credit Agreement, Capital
Stock,  Corporate  Organization and Related  Matters,  is hereby deleted and the
following substituted in lieu thereof:

                      "(c) Capital  Stock,  Corporate  Organization  and Related
              Matters.  As of the  Agreement  Date,  after giving  effect to the
              Nextel  Acquisition,  the  capitalization of Holdco will be as set
              forth on Schedule 5.1(c) hereof. Holdco owns all of the issued and
              outstanding Capital Stock of the Borrower, and except as set forth
              on  Schedule  5.1(c),  the  Borrower  owns all of the  issued  and
              outstanding  Capital Stock of each of its Subsidiaries and has the
              unrestricted  right to vote such Capital  Stock owned by it. As of
              the Westower  Acquisition  Date,  the  Borrower  will not have any
              Subsidiaries other than the Subsidiaries listed on Schedule 5.1(x)
              attached  hereto.  All of the  issued  and  outstanding  shares of
              Capital Stock of the Borrower and its Subsidiaries  have been duly
              authorized   and   validly   issued   and  are   fully   paid  and
              nonassessable,  and are free and  clear of all Liens  (except  for
              Permitted  Liens).  None of such Capital  Stock has been issued in
              violation of the Securities Act, or the securities,  "Blue Sky" or
              other  Applicable Laws of any applicable  jurisdiction.  As of the
              Westower Acquisition Date, except as set forth on Schedule 5.1(c),
              none of Holdco, the Borrower or any of the Borrower's Subsidiaries
              has  outstanding  any  stock  or  securities  convertible  into or
              exchangeable  for any shares of its Capital  Stock,  nor are there
              any  preemptive or similar rights to subscribe for or to purchase,
              or any  other  rights  to  subscribe  for or to  purchase,  or any
              options for the purchase of, or any  agreements  providing for the
              issuance (contingent or otherwise) of, or any calls,  commitments,
              or claims of any character  relating to, any of such Capital Stock
              or any stock or securities  convertible  into or exchangeable  for
              any of such Capital Stock.  As of the Westower  Acquisition  Date,
              except  as set  forth on  Schedule  5.1(c),  none of  Holdco,  the
              Borrower or any of the Borrower's  Subsidiaries  is subject to any
              obligation  (contingent  or  otherwise) to repurchase or otherwise
              acquire or retire any shares of its  Capital  Stock or to register
              any  shares of its  Capital  Stock,  and  there are no  agreements
              restricting  the transfer of any shares of Capital Stock of any of
              Holdco,  the  Borrower or any of the  Borrower's  Subsidiaries  or
              restricting the ability

                                        6

<PAGE>



              of any  Subsidiary  of the  Borrower  from  making  distributions,
              dividends or other Restricted Payments to the Borrower.  Except as
              set forth on  Schedule  5.1(c),  within  the five (5) year  period
              immediately preceding the Agreement Date, neither the Borrower nor
              any of its Subsidiaries  (other than Westower and its Subsidiaries
              existing as of the Westower Acquisition Date) has changed its name
              nor  has  the  Borrower  or any of its  Subsidiaries  (other  than
              Westower  and  its  Subsidiaries   existing  as  of  the  Westower
              Acquisition  Date)  transacted  business  under any other  name or
              trade name."

                      (b)      Section 5.1(h) of the Credit Agreement, Title to
Assets, is hereby deleted and the following substituted in lieu thereof:

                      "(h)  Title  to  Assets.  Holdco,  the  Borrower  and  the
              Borrower's  Subsidiaries  each has good and  legal  title to, or a
              valid  leasehold  interest in, all of its respective  Assets,  and
              none of such Assets is subject to any Liens,  except for Permitted
              Liens. Except for financing statements evidencing Permitted Liens,
              no financing  statement  under the Uniform  Commercial  Code as in
              effect in any jurisdiction and no other filing which names Holdco,
              the Borrower or any of the Borrower's  Subsidiaries as debtor,  or
              which  covers  or  purports  to  cover  any of the  Assets  of the
              Borrower  or any  of the  Borrower's  Subsidiaries,  is  currently
              effective and on file in any state or other jurisdiction, and none
              of Holdco, the Borrower or any of the Borrower's  Subsidiaries has
              signed  any such  financing  statement  or filing or any  security
              agreement  authorizing  any secured  party  thereunder to file any
              such financing statement or filing. As of the Westower Acquisition
              Date, except as set forth on Schedule 5.1(h),  none of Holdco, the
              Borrower or any of the Borrower's  Subsidiaries  is a party to any
              contract, instrument or agreement (including,  without limitation,
              any of the Necessary  Authorizations)  restricting  the ability of
              Holdco, the Borrower or such Subsidiary,  as applicable,  to enter
              into  an  agreement  by  which   Holdco,   the  Borrower  or  such
              Subsidiary,  as  applicable,  agrees  that it  shall  not  create,
              assume,  incur  or  permit  to exist or be  created,  directly  or
              indirectly,  any Lien on its  Assets.  Tower  Sub does not own any
              material  Assets  other than Tower  Assets  comprising  the Nextel
              Collateral and Tower Space Lease  Agreements  with  Co-Locators on
              Towers comprising the Nextel  Collateral,  and Holdco does not own
              any material  Assets other than the Capital  Stock of the Borrower
              and,  prior  to  consummation  of the  Westower  Acquisition,  the
              Capital Stock of W Acquisition Corp. and Westower."

                      (c)      Section 5.1(i) of the Credit Agreement,
Litigation, is hereby deleted and the following substituted in lieu thereof:

                      (i)  Litigation.  As of  the  Westower  Acquisition  Date,
              except as set forth on Schedule 5.1(i) attached  hereto,  there is
              no  material  action,  suit,  application,   complaint,  petition,
              revocation,  proceeding or investigation,  at law or in equity, or
              any  material  order,  decree or  judgment,  in effect or  pending
              against, or, to the best of the Borrower's  knowledge,  threatened
              against Holdco, the Borrower or any of the Borrower's Subsidiaries
              or any of their respective properties and Assets (including,

                                        7
<PAGE>

              without  limitation,  any  Necessary  Authorization  or any  Tower
              Assets)  in any  court or  before  any  arbitrator  of any kind or
              before or by any governmental body (including, without limitation,
              the  FCC  and/or  the  FAA).  No  action,   suit,   proceeding  or
              investigation,  at law or in equity, or any material order, decree
              or judgment,  in effect or pending against, or, to the best of the
              Borrower's  knowledge,  threatened against Holdco, the Borrower or
              any of the  Borrower's  Subsidiaries  or any of  their  respective
              properties  and  Assets  (including,   without   limitation,   any
              Necessary  Authorization  or any  Tower  Assets)  in any  court or
              before any arbitrator of any kind or before or by any governmental
              body (including,  without limitation,  the FCC and/or the FAA) (i)
              calls into  question the validity of this  Agreement or any of the
              other Loan Documents,  (ii) if determined adversely to Holdco, the
              Borrower or any of the Borrower's  Subsidiaries,  could reasonably
              be expected to have a Materially  Adverse  Effect,  or (iii) could
              restrict  in any  material  manner  the  ownership,  operation  or
              license status of any Material Towers."

                      (d)      Section 5.1(m) of the Credit Agreement, ERISA,
is hereby deleted and the following substituted in lieu thereof:

                      "(m) ERISA.  Each Plan  maintained,  or contributed to, by
              the  Borrower  or any of its  Subsidiaries,  or any of their ERISA
              Affiliates,  as of the  Westower  Acquisition  Date is  listed  on
              Schedule  5.1(m)  attached  hereto.  Each  of  such  Plans  is  in
              compliance in all material  respects  with their terms,  ERISA and
              the Code. None of such Plans has a material  'accumulated  funding
              deficiency'  within the meaning of ERISA or the Code.  Neither the
              Borrower nor any of its  Subsidiaries  nor any of their respective
              ERISA  Affiliates has incurred any material  liability to the PBGC
              (other than the payment of premiums  imposed by Title IV of ERISA)
              in  connection  with any such  Plan.  The assets of each such Plan
              which is  subject to Title IV of ERISA are  sufficient  to provide
              the benefits  under such Plan if such Plan were  terminated on the
              date hereof.  No Reportable Event has occurred with respect to any
              such  Plan.   No  party  in   interest,   fiduciary,   trustee  or
              administrator  of any such Plan or trust  created  thereunder  has
              engaged in a 'prohibited  transaction' (as such term is defined in
              Section  406 of ERISA or  Section  4975 of the Code)  which  would
              subject the Borrower,  its Subsidiaries or any of their respective
              ERISA  Affiliates to a material tax on  'prohibited  transactions'
              imposed by Section 4975 of the Internal  Revenue Code. No party in
              interest,  fiduciary, trustee or administrator of any such Plan or
              trust created  thereunder  has committed a material  breach of its
              fiduciary duty or knowingly participated in any violation of ERISA
              which would  subject the  Borrower,  its  Subsidiaries,  or any of
              their  respective  ERISA  Affiliates  to a material  penalty under
              Section  502 of  ERISA.  As of the  Agreement  Date,  none  of the
              Borrower,  its  Subsidiaries  or any  of  their  respective  ERISA
              Affiliates is a participant in or obliged to make any payment to a
              Multiemployer  Plan. As of the Agreement Date,  except as required
              by Sections 601 through 609 of ERISA, neither the Borrower nor any
              of its  Subsidiaries  has made any oral or written  commitments to
              provide  post-employment  health or life  insurance  coverage with
              respect to any former or current  employee.  The  Borrower and its
              Subsidiaries and ERISA Affiliates have properly classified

                                        8

<PAGE>

              individuals  providing  services  to  the  Borrower  or any of its
              Subsidiaries  or ERISA  Affiliates as employees or  non-employees,
              except to the extent that a misclassification  would not result in
              a Materially Adverse Effect."

                      (e)      Section 5.1(s) of the Credit Agreement,
Agreements with Affiliates and Management Agreements,  is hereby deleted and the
following substituted in lieu thereof:

                      "(s) Agreements with Affiliates and Management Agreements.
              As of the  Westower  Acquisition  Date,  except  as set  forth  on
              Schedule 5.1(s) attached hereto,  none of Holdco, the Borrower nor
              any of the Borrower's  Subsidiaries  has (i) any material  written
              agreements or binding  arrangements of any kind with any Affiliate
              or (ii) any material  management or  consulting  agreements of any
              kind, not entered into in the ordinary course of business."

                      (f)      Section 5.1(u) of the Credit Agreement, Payment
of Wages; Labor Matters, is hereby deleted and the following substituted in lieu
thereof:

                      "(u)  Payment of Wages;  Labor  Matters.  The Borrower and
              each of its  Subsidiaries  are in  compliance  with the Fair Labor
              Standards  Act,  as amended,  in all  material  respects,  and the
              Borrower  and  each  of  its  Subsidiaries  have  complied  in all
              material  respects with all minimum and overtime wage requirements
              applicable  to  their  respective  employees.  As of the  Westower
              Acquisition Date,  except as disclosed on Schedule 5.1(u):  (i) no
              labor contract to which the Borrower or any of its Subsidiaries is
              a party or is otherwise  subject is scheduled to expire during the
              term of this  Agreement;  (ii) neither the Borrower nor any of its
              Subsidiaries  has,  within  the two (2)  year  period  immediately
              preceding  the Agreement  Date,  taken any action which would have
              constituted  or  resulted in a 'plant  closing'  or 'mass  layoff'
              within the meaning of the Federal Worker Adjustment and Retraining
              Notification Act of 1988 or any similar applicable federal,  state
              or local  law,  and the  Borrower  does  not  have any  reasonable
              expectation  that it will incur any material  liability under such
              Act at any time  during the term of this  Agreement;  (iii) all of
              the operations of the Borrower and its  Subsidiaries are conducted
              in all material  respects in compliance with all applicable  rules
              and regulations  promulgated by the Occupational Safety and Health
              Administration  of the United States Department of Labor; and (iv)
              as of the Westower  Acquisition Date, (A) neither the Borrower nor
              any of its  Subsidiaries  is a party to any material labor dispute
              (other than any  immaterial  disputes with the  Borrower's or such
              Subsidiary's  employees  as  individuals  and  not  affecting  the
              Borrower's or such Subsidiary's  relations with any labor group or
              its  workforce as a whole) and (B) there are no pending or, to the
              Borrower's  knowledge,  threatened strikes or walkouts relating to
              any  labor   contracts  to  which  the  Borrower  or  any  of  its
              Subsidiaries  is a  party  or is  otherwise  subject.  As  of  the
              Westower  Acquisition  Date, none of the employees of the Borrower
              or any of its Subsidiaries is a party to any collective bargaining
              agreement with the Borrower or any of its Subsidiaries."

                                        9

<PAGE>

                      (g)      Section 5.1(x) of the Credit Agreement,
Investments, is hereby deleted and the following substituted in lieu thereof:

                      "(x)  Investments.  As of the Westower  Acquisition  Date,
              none of Holdco, the Borrower or any of the Borrower's Subsidiaries
              owns any Capital Stock,  partnership interests or other securities
              of, or equity  interests in, or has outstanding  loans or advances
              to, or  guaranties  of the  obligations  of, any Person  except as
              reflected in the  Financial  Statements,  or disclosed on Schedule
              5.1(c) or Schedule 5.1(x) attached hereto."

                      (h)      Section 5.1(y) of the Credit Agreement, Material
Contracts, is hereby deleted and the following substituted in lieu thereof:

                      "(y)  Material  Contracts.   Schedule  5.1(y)  contains  a
              complete  list,  as of  the  Agreement  Date,  of  each  contract,
              agreement or commitment  (the  "Material  Contracts") to which the
              Borrower or any of its  Subsidiaries  is a party which is material
              to the business,  financial  condition,  operations,  prospects or
              Assets  of the  Borrower  and its  Subsidiaries  taken as a whole,
              other  than any  Necessary  Authorizations  set forth on  Schedule
              5.1(f)  attached  hereto,  and, upon the request of the Arrangers,
              the Borrower  will provide the  Arrangers  with a copy of any such
              contract or agreement.  Schedule 5.1(y) further identifies,  as of
              the  Westower  Acquisition  Date,  each  Material  Contract  which
              requires  consent  to the  granting  of a  Lien  in  favor  of the
              Collateral  Agent  on the  rights  of the  Borrower  or any of its
              Subsidiaries thereunder."

              4. Amendment to Section 6.2. Section 6.2 of the Credit  Agreement,
Business;  Compliance with Applicable Law, is hereby deleted in its entirety and
the following substituted in lieu thereof:

                      "Section 6.2 Business; Compliance with Applicable Law. The
              Borrower will, and will cause each of its  Subsidiaries to, engage
              solely  in  the  business  of  the  Tower  Operations,  the  Other
              Operations and in related business activities.  Holdco will engage
              solely in the  business of holding  the  Capital  Stock of (a) the
              Borrower,   and  (b)  prior  to   consummation   of  the  Westower
              Acquisition,  W Acquisition Corp. and Westower. Each of Holdco and
              the  Borrower   will,  and  will  cause  each  of  the  Borrower's
              Subsidiaries  to,  comply  in  all  material   respects  with  the
              requirements   of  all   Applicable   Laws   (including,   without
              limitation, all tower marking and lighting requirements of the FAA
              and the FCC)."

              5. Amendment to Section 6.9. Section 6.9 of the Credit  Agreement,
Use of Proceeds, is hereby deleted in its entirety and the following substituted
in lieu thereof:

                      "Section 6.9      Use of Proceeds.   The Borrower will use
              the aggregate proceeds of all Advances (a) to finance the Nextel
              Acquisition, (b) to finance the Westower Acquisition (including,
              without limitation, the distribution of funds to

                                       10

<PAGE>



              Holdco to permit  Holdco to repay  any  existing  Indebtedness  of
              Westower),  (c) to  finance  the NTA  Investment,  (d) to  provide
              funding   for   the   construction/development,    build-out   and
              Acquisition  of Towers as  permitted  hereunder,  (e) for  general
              corporate  purposes  (including,   without  limitation,  fees  and
              expenses  relating  to  the  Nextel   Acquisition,   the  Westower
              Acquisition, the NTA Investment, and the transactions contemplated
              by this  Agreement  and the  other  Loan  Documents),  and (f) for
              working capital and other general corporate purposes. A portion of
              each  Advance  of the  Tranche  C  Loans  in an  aggregate  amount
              sufficient  to make interest  payments on such Advance  during the
              Tranche  C  Pre-Fund  Period  shall be  funded on the date of such
              Advance  of the  Tranche  C  Loans  to the  Tranche  C  Pre-Funded
              Interest Account and made solely available for payment of interest
              charges  on the  Tranche  C  Loans,  and  principal  and  interest
              repayment  upon  the  Final  Maturity  Date  or in  the  event  of
              acceleration  of the  Tranche C  Obligations  pursuant  to Section
              10.3(b)  hereof.  No proceeds of Advances  hereunder shall be used
              for the  purchase or carrying or the  extension  of credit for the
              purpose of  purchasing  or carrying  any margin  stock  within the
              meaning of  Regulations  U and X of the Board of  Governors of the
              Federal Reserve System."

              6.  Amendment  to  Section  6.16.   Section  6.16  of  the  Credit
Agreement,  Covenants  Regarding  Formation  of  Subsidiaries  and the Making of
Investments and Acquisitions, is hereby deleted and the following substituted in
lieu thereof:

                      "Section   6.16   Covenants    Regarding    Formation   of
              Subsidiaries  and the Making of Investments and  Acquisitions.  At
              the  time  of  any  Acquisition  by  the  Borrower  or  any of its
              Subsidiaries,  or the  formation  of  any  new  Subsidiary  of the
              Borrower or of any of its  Subsidiaries,  the Borrower  will,  and
              will cause its Subsidiaries,  as applicable, to in the case of the
              formation or Acquisition of a new  Subsidiary,  (a) provide to the
              Collateral  Agent a duly  executed  supplement  to the  Subsidiary
              Security Agreement for such new Subsidiary (other than any Foreign
              Westower  Subsidiary),  together with appropriate  UCC-1 financing
              statements,   as  well  as  a  duly  executed  supplement  to  the
              Subsidiary  Guaranty  for  such  new  Subsidiary  (other  than any
              Foreign Westower Subsidiary), which shall constitute both Security
              Documents and Loan  Documents for purposes of this  Agreement,  as
              well as a loan certificate for such new Subsidiary,  substantially
              in  the  form  of  Exhibit  Z  attached   hereto,   together  with
              appropriate  attachments  thereto;  (b)  pledge to the  Collateral
              Agent all of the Capital Stock (or other instruments or securities
              evidencing ownership) of such Subsidiary or Person (other than the
              Foreign Westower  Subsidiaries,  in which case the pledge shall be
              of sixty-five  percent (65%) (or in the case of Westower Highlight
              Do Brazil,  sixty percent (60%)) of the Capital Stock of each such
              Subsidiary) which is acquired or formed, beneficially owned by the
              Borrower or any of the  Borrower's  Subsidiaries,  as the case may
              be, as additional Collateral for the Senior Obligations to be held
              by the  Collateral  Agent  in  accordance  with  the  terms of the
              Borrower Pledge Agreement or the Subsidiary Pledge Agreement,  and
              execute and deliver to the Collateral Agent all such documentation
              for such pledge (including,  without  limitation,  a supplement to
              the Subsidiary Pledge

                                       11
<PAGE>

              Agreement,  original  stock  certificates  and duly executed stock
              powers) as, in the reasonable  opinion of the Collateral Agent, is
              appropriate;  and (c) provide all other documentation,  including,
              without  limitation,  a Trademark  Security Agreement or any other
              security agreement covering any additional  intellectual  property
              obtained  by the  Borrower  or such  Subsidiary  (other  than  any
              Foreign Westower Subsidiary),  and one or more opinions of counsel
              satisfactory  to the  Collateral  Agent  which  in the  reasonable
              opinion of the  Collateral  Agent is  appropriate  with respect to
              such   Acquisition  or  the  formation  of  such  new  Subsidiary.
              Investments made by the Borrower or any of its Subsidiaries  after
              the Agreement Date shall also be treated as additional  Collateral
              and shall be subject to the  provisions  of  appropriate  Security
              Documents.  Any  document,  agreement  or  instrument  executed or
              issued  pursuant to this Section  6.16 shall be a 'Loan  Document'
              for purposes of this  Agreement.  Notwithstanding  anything to the
              contrary  contained  herein,  upon the  reasonable  request of the
              Borrower,  Collateral  Agent may, in its sole  discretion  without
              consultation  with the  Majority  Lenders,  release any or all the
              Collateral  pledged to it in connection with the NTA Investment to
              the extent that such  Collateral  does not represent a substantial
              portion of the Collateral for the Senior Loans taken as a whole."

              7. Amendment to Section 7.4. Section 7.4 of the Credit  Agreement,
Performance  Certificates,  is hereby  deleted in its entirety and the following
substituted in lieu thereof:

                      "Section  7.4  Performance  Certificates.  At the time the
              financial statements are furnished pursuant to Section 7.2 hereof,
              a Performance Certificate:

                      "(a) setting  forth as at the end of such fiscal  quarter,
              the  arithmetical  calculations  required  to  establish  (i)  the
              Applicable Margin, and (ii) whether the Borrower was in compliance
              with the requirements of the Financial Covenants;

                      "(b)  setting  forth  on  a  consolidated  basis  for  the
              Borrower and its  Subsidiaries,  for each such fiscal  quarter,  a
              summary in the form of Schedule 3 to the  Performance  Certificate
              of (i) the number and type of Towers  built,  acquired  or sold by
              the Borrower or any of its Subsidiaries  during such period,  (ii)
              the  location  by state  and  county  of any new  Tower  Sites not
              previously reported under this Section 7.4(b),  (iii) the dates of
              final termination or expiration of all Tower Site Lease Agreements
              and Tower Space Lease Agreements occurring during the quarter then
              ended and for the immediately  following  quarter,  (iv) a list of
              all anchor  tenants  which are located on at least five (5) Towers
              and the total number of Towers on which each such anchor tenant is
              located,  (v) a list of all  Co-Locators  which are  located on at
              least five (5)  Towers,  including  the total  number of Towers on
              which each such  Co-Locator  is located and the  percentage of all
              Towers on which such  Co-Locator  is located,  (vi)  capacity  for
              additional  tenants  per Tower with  respect to the Tower Sites of
              the  Borrower  and its  Subsidiaries  as of the end of such fiscal
              quarter,  (vii) the  Co-Location  Percentage as at the end of such
              quarter,  and (viii) with respect to any Tower Sites leased by the
              Borrower or any of its Subsidiaries which were acquired or

                                       12
<PAGE>


              built during such quarter,  whether the consent of the landlord of
              such Tower Sites is required for an  assignment  of the Tower Site
              Lease Agreement with respect thereto;

                      "(c) with  respect  to the  fourth  (4th)  quarter  of any
              fiscal year only,  an updated  list of all of the Tower Site Lease
              Agreements  and Tower Space Lease  Agreements  of the Borrower and
              its Subsidiaries as of the end of such fiscal quarter; and

                      "(d) stating that, to the best of his or her knowledge, no
              Default or Event of  Default  has  occurred  as at the end of such
              period,  or, if a Default  or an Event of  Default  has  occurred,
              disclosing  each such  Default or Event of Default and its nature,
              when it  occurred,  whether it is  continuing  and the steps being
              taken by the  Borrower  with  respect to such  Default or Event of
              Default."

              8. Amendment to Section 7.6. Section 7.6 of the Credit  Agreement,
Notice of  Litigation  and Other  Matters,  is hereby  modified  and  amended by
deleting the existing  subsection (e) and by substituting  the following in lieu
thereof:

                      "(e) (i) the maintenance  of, or  contribution  to, by the
              Borrower  or any  of its  Subsidiaries,  or  any  of  their  ERISA
              Affiliates,  in any Plan not listed on  Schedule  5.1(m)  attached
              hereto,  or (ii)  the  occurrence  of any  Reportable  Event  or a
              material  non-exempt  'prohibited  transaction'  (as such  term is
              defined in Section 406 of ERISA or Section  4975 of the Code) with
              respect to any Plan of the Borrower or any of its  Subsidiaries or
              the  institution or threatened  institution by PBGC of proceedings
              under ERISA to terminate or to partially  terminate  any such Plan
              or the  commencement or threatened  commencement of any litigation
              regarding any such Plan, other than litigation involving a routine
              claim for benefits;"

              9. Amendments to Section 8.1.

                      (a)      Section 8.1 of the Credit Agreement,
Indebtedness, is hereby modified and amended by deleting existing subsection (c)
and by substituting the following in lieu thereof:

                      "(c) Capitalized  Lease Obligations of the Borrower not to
              exceed the  aggregate  principal  amount of  $5,000,000 at any one
              time   outstanding   over  the  remainder  of  the  term  of  such
              obligations;"

                      (b)      Section 8.1 of the Credit Agreement,
Indebtedness, is hereby further modified and amended by deleting existing
subsection (j) and by substituting the following in lieu thereof:

                      "(j)     Indebtedness of the Borrower in respect of
              conditional sale, rental or purchase money obligations in an
              aggregate amount not to exceed $5,000,000 at any one time
              outstanding;"

                                       13

<PAGE>


              10. Amendment to Section 8.4. Section 8.4 of the Credit Agreement,
Amendment  and  Waiver,  is hereby  deleted in its  entirety  and the  following
substituted in lieu thereof:

                      "Section 8.4 Amendment and Waiver.  Neither Holdco nor the
              Borrower  shall,   and  the  Borrower  shall  cause  each  of  its
              Subsidiaries  not to,  without  the prior  written  consent of the
              Arrangers,  enter into any amendment of, or agree to or accept any
              waiver of, which would  materially  adversely affect the rights of
              the Borrower and the Credit Parties,  under any of them, of any of
              the provisions of, (a) its  organizational  documents,  including,
              without  limitation,  its certificate or articles of incorporation
              (other than any increase in the number of  authorized  shares) and
              by-laws, (b) the Nextel Acquisition Documents, (c) the Indentures,
              (d) the Holdco  Equity  Documents,  (e) the  Westower  Acquisition
              Agreement, and (f) the NTA Investment Documents."

              11. Amendments to Section 8.5.

                      (a)      Section 8.5 of the Credit Agreement, Liquidation;
Merger;  Acquisition or Disposition of Assets, is hereby modified and amended by
deleting  existing  subsection  (vii) and  substituting  the  following  in lieu
thereof:

                      "(vii) subject to compliance with Section 6.10 and Section
              6.16 hereof,  the Borrower and its Subsidiaries  (other than Tower
              Sub)  may  make  Acquisitions,   and  Investments  (including  the
              acquisition of Capital Stock or other equity  interests in Persons
              engaged in businesses  similar to the Tower  Operations)  and form
              Subsidiaries  with  respect  thereto,  subject  to  the  following
              conditions:

                               "(A)     no Default or Event of Default shall
                      then exist before or after giving effect to such
                      Acquisition or Investment;

                               "(B)  the  aggregate  Purchase  Price  for  Tower
                      Assets acquired  pursuant to this clause (vii) (other than
                      the Future  Nextel  Towers),  (I)  during any twelve  (12)
                      month  period,  shall  not  exceed  $50,000,000,  and (II)
                      during the period  from the  Agreement  Date  through  the
                      Tranche B Maturity Date, shall not exceed $100,000,000;

                               "(C) with respect to  Acquisitions  structured as
                      Tower Asset exchanges or swaps, the following restrictions
                      shall apply:  (x) the cash outlay by the Borrower for such
                      Acquisition  must be within  the  dollar  limitations  set
                      forth in the  preceding  clause  (B);  (y) the  Annualized
                      EBITDA  attributable  to the Tower Assets  being  acquired
                      must be  substantially  similar  to or  greater  than  the
                      Annualized  EBITDA of the Tower Assets being  exchanged or
                      swapped;  and  (z)  if the  exchange  involves  more  than
                      twenty-five  (25)  Towers,  the  Towers  acquired  in such
                      transaction  must have as an anchor tenant a Nextel Tenant
                      or another  tenant  reasonably  acceptable to the Majority
                      Lenders.

                                       14

<PAGE>



                               "(D) the Borrower  shall provide to the Arrangers
                      and  the  Lenders  calculations  demonstrating  pro  forma
                      compliance  with  the  Financial  Covenants  after  giving
                      effect to such Acquisition; and

                               "(E) with  respect to any  Acquisition  having an
                      aggregate   Purchase  Price  (with  respect  to  a  single
                      transaction or a series of related transactions) in excess
                      of   $20,000,000,   the  Borrower  shall  provide  to  the
                      Arrangers  and the Lenders  revised  Projections  assuming
                      consummation  of the  Acquisition  and  demonstrating  pro
                      forma compliance with the Financial  Covenants through the
                      Tranche B Maturity Date;"

                      (b)      Section 8.5 of the Credit Agreement, Liquidation;
Merger;  Acquisition or Disposition  of Assets,  is hereby further  modified and
amended by adding the following new subsections (x) and (xi) at the end thereof:

                      "(x)     Holdco and the Borrower may consummate the
              Westower Acquisition; and

                      "(xi)  so long as no  Default  or Event  of  Default  then
              exists or would be caused thereby, the Borrower may consummate the
              NTA  Investment;  provided,  however,  that  with  respect  to the
              exercise  by the  Borrower  of its  options to acquire  additional
              equity  interests in the NTA Joint  Venture,  the Borrower may not
              acquire such additional equity interests without the prior written
              consent of the Majority Lenders."

              12. Amendment to Section 8.6. Section 8.6 of the Credit Agreement,
Limitation on  Guaranties,  is hereby  deleted in its entirety and the following
substituted in lieu thereof:

                      "Section 8.6 Limitation on Guaranties.  Neither Holdco nor
              the  Borrower  shall,  and the  Borrower  shall  cause each of its
              Subsidiaries  not to, at any time Guaranty,  assume,  be obligated
              with respect to, or permit to be outstanding  any Guaranty of, any
              obligation  of any other  Person  other  than (a) under any of the
              Loan  Documents or as permitted  under  Section 8.1 hereof,  (b) a
              guaranty by endorsement of negotiable  instruments  for collection
              in the ordinary  course of business,  (c)  contingent  obligations
              incurred in the ordinary course of business with respect to surety
              and appeal bonds,  performance and return-of-money bonds and other
              similar obligations, and (d) a guaranty by Holdco, the Borrower or
              any of its Subsidiaries  (other than Tower Sub) of the performance
              obligations of the Borrower or any of its Subsidiaries."

              13. Amendment to Section 8.7. Section 8.7 of the Credit Agreement,
Restricted  Payments and  Purchases,  is hereby  deleted in its entirety and the
following substituted in lieu thereof:

                                       15

<PAGE>


                      "Section 8.7 Restricted  Payments and  Purchases.  Neither
              Holdco nor the Borrower  shall,  and the Borrower shall cause each
              of its Subsidiaries not to, directly or indirectly declare or make
              any  Restricted  Payment or Restricted  Purchase,  except that, so
              long as no Default or Event of Default then exists or would result
              therefrom,  the Borrower may make Restricted Payments to Holdco to
              enable  Holdco to make,  and  Holdco  may make,  (a) (i)  interest
              payments on the Holdco 2008 Notes and on the Holdco 2009 Notes, or
              (ii) interest or dividend  payments,  as applicable,  on Permitted
              High-Yield  Securities  issued on or before the Agreement Date, in
              each  case  in  the  case  of  clauses  (i)  and  (ii),  following
              expiration  of the  Five  Year  PIK  Period  or from a  Pre-Funded
              Interest   Account,   (b)  dividend  or  interest   payments,   as
              applicable,  on Permitted  High-Yield  Securities issued after the
              Agreement Date,  following expiration of the Five Year PIK Period,
              or from a  Pre-Funded  Interest  Account,  at any time  after  the
              Leverage  Ratio  shall  have been less than 4.0 to 1.0 for two (2)
              consecutive  fiscal  quarters,  (c) payments when due of corporate
              franchise  fees and taxes owed by Holdco  that are  required to be
              paid in cash, (d) payments, when due, of legal and accounting fees
              and expenses  actually  incurred by Holdco that are required to be
              paid in cash,  and  payments  for costs  incurred  to comply  with
              Holdco's  reporting  obligations  under  federal  or  state  laws,
              including,  without limitation,  reports filed with respect to the
              Securities  Act,  the  Exchange  Act or the  respective  rules and
              regulations  promulgated  thereunder,  (e) payments of 'Additional
              Interest'  (as that term is  defined  in the  Registration  Rights
              Agreements  entered into in connection  with the Holdco 2008 Notes
              and the Holdco 2009 Notes),  and (f) on the  Westower  Acquisition
              Date,  repayment  of any existing  Indebtedness  of Westower in an
              aggregate amount not to exceed $70,000,000."

              14. Amendment to Section 8.9. Section 8.9 of the Credit Agreement,
Corporate Name; Corporate Structure; Business, is hereby deleted in its entirety
and the following substituted in lieu thereof:

                      "Section  8.9   Corporate   Name;   Corporate   Structure;
              Business.  Neither Holdco nor the Borrower shall, and the Borrower
              shall  cause  each of its  Subsidiaries  not to,  (1)  change  its
              corporate   name  or  corporate   structure   without  giving  the
              Collateral  Agent  thirty (30) days' prior  written  notice of its
              intention to do so and complying with all reasonable  requirements
              of the Collateral Agent in regard thereto,  or (b) with respect to
              the Borrower and its Subsidiaries,  engage in any businesses other
              than the Tower  Operations and the Other Operations and activities
              related or incident thereto, and with respect to Holdco, engage in
              any business  other than that of holding the Capital  Stock of the
              Borrower,  or prior to consummation  of the Westower  Acquisition,
              the Capital Stock of W Acquisition  Corp. or Westower,  or in each
              case, make any material change in any of their respective business
              objectives, purposes and operations."

              15.  Amendment  to  Section  13.18.  Section  13.18 of the  Credit
Agreement,  Confidentiality, is hereby deleted in its entirety and the following
substituted in lieu thereof:

                                       16

<PAGE>


                      "Section   13.18    Confidentiality.    All    agreements,
              instruments,  documents and other information received pursuant to
              this  Agreement or any other Loan  Document by the Credit  Parties
              shall be held in  confidence  by the  Credit  Parties,  except for
              disclosures   made  (a)  in  connection  with  assignments  of  or
              participations  in the Loans made  pursuant to Section 13.5 hereof
              (provided  that such  assignees  or  participants  shall  agree in
              writing to keep such information confidential as provided herein),
              (b) as otherwise required to be disclosed by banking  regulations,
              process  of  law  or  other   Applicable  Law,  or  to  government
              regulators,  (c) of information received by a Credit Party without
              restriction as to its disclosure or use from a Person who, to such
              Credit Party's knowledge or reasonable  belief, was not prohibited
              from  disclosing  it  by  any  duty  of  confidentiality,  (d)  in
              connection  with  litigation  arising  from this  Agreement or any
              other Loan  Document  to which a Credit  Party is a party,  (v) of
              information  which is or has become  public  (other  than  through
              unauthorized   disclosure  by  any  Credit  Party),  (vi)  to  the
              attorneys,  accountants,  and other expert consultants  (including
              rating  agencies)  for any Credit Party (who shall be requested to
              similarly  hold  such  information  in  confidence),  (vii) to any
              direct  or  indirect  contractual  counterparty  of  a  Lender  in
              connection   with   a   swap   agreement   or   such   contractual
              counterparty's  professional  advisor so long as such  contractual
              counterparty or professional  advisor,  as the case may be, agrees
              in writing to be bound by the  provisions  of this Section  13.18,
              (viii) to the National  Association of Insurance  Commissioners or
              any  similar  organization  or any  nationally  recognized  rating
              agency  that  requires  access  to  information  about a  Lender's
              investment  portfolio  in  connection  with  ratings  issued  with
              respect to such Lender, or (ix) as otherwise permitted hereunder."

              16. Amendments to Schedules to the Credit Agreement. The following
schedules  to the Credit  Agreement  shall be deemed  amended as of the Westower
Acquisition Date:

                      (a)      Schedule 5.1(c) to the Credit Agreement,
Capitalization, is hereby modified and amended by deleting the existing schedule
in its entirety and by  substituting  Schedule  5.1(c)  attached  hereto in lieu
thereof.

                      (b)      Schedule 5.1(i) to the Credit Agreement,
Litigation,  is hereby modified and amended by deleting the existing schedule in
its  entirety  and by  substituting  Schedule  5.1(i)  attached  hereto  in lieu
thereof.

                      (c)      Schedule 5.1(m) to the Credit Agreement, ERISA,
is hereby modified and amended by deleting the existing schedule in its entirety
and by substituting Schedule 5.1(m) attached hereto in lieu thereof.

                      (d)      Schedule 5.1(s) to the Credit Agreement,
Agreements  with  Affiliates,  is hereby  modified  and amended by deleting  the
existing  schedule in its entirety and by substituting  Schedule 5.1(s) attached
hereto in lieu thereof.

                                       17
<PAGE>

                      (e)      Schedule 5.1(x) to the Credit Agreement,
Investments, is hereby modified and amended by deleting the existing schedule in
its  entirety  and by  substituting  Schedule  5.1(x)  attached  hereto  in lieu
thereof.

              17. No Other  Amendments,  Waivers  or  Consents.  Except  for the
amendments set forth above,  the text of the Credit Agreement and the other Loan
Documents  shall  remain  unchanged  and in  full  force  and  effect,  and  the
Arrangers, the Syndication Agent, the Administrative Agent, the Collateral Agent
and the Credit Parties  hereby  reserve the right to require  strict  compliance
with the terms of the Credit Agreement and the other Loan Documents,  including,
without limitation, all terms applicable to Subsidiaries of the Borrower, in the
future.

              18.  Acceptance of Westower Anchor Tenants.  The Arrangers  hereby
acknowledge  and agree that each anchor tenant  designated with respect to a New
Tower  acquired in  connection  with the  Westower  Acquisition  as set forth on
Exhibit A attached hereto shall be deemed to be an acceptable anchor tenant with
respect to such New Tower for purposes of determining the Borrowing Base Amount.

              19.  Conditions  Subsequent.  As a  condition  subsequent  to  the
amendments and consents set forth in this Amendment,  the Borrower shall perform
or cause to be  performed  the  following  (the  failure by the  Borrower  to so
perform or cause to be performed  for any reason (other than (x) with respect to
the  conditions  set  forth in clause  (a)  below,  the fact  that the  Westower
Acquisition was not ever consummated,  or (y) with respect to the conditions set
forth in clause (b) below,  the fact that the NTA  Investment was not ever made)
constituting an Event of Default under the Credit Agreement):

                      (a)      Westower Acquisition.

                               (i) Conditions Precedent to Westower Acquisition.
              Promptly  after the same shall become  available to the  Borrower,
              and in any  event  at  least  one (1)  Business  Day  prior to the
              Westower  Acquisition  Date,  the  Borrower  shall  deliver to the
              Arrangers (A) the unaudited  financial  statements of Westower for
              the quarter ended March 31, 1999,  which shall present fairly,  in
              all material  respects,  in  accordance  with GAAP,  the financial
              position of Westower as at the end of such quarter and the results
              of operations for such quarter, and for the elapsed portion of the
              year  ended  with the last day of such  quarter,  subject  only to
              normal year-end  adjustments,  (B) a copy of the Merger Agreement,
              together  with  all  exhibits  and  schedules  thereto,  and (C) a
              schedule setting forth, with respect to each Tower owned, operated
              or managed by  Westower,  (I) the location and type of such Tower,
              (II)  whether  the  applicable  Tower  Site is owned or  leased by
              Westower, and if leased, the amount of the monthly ground rent and
              the  expiration  date of the ground lease,  and (III) the names of
              each anchor tenant and each co-locator,  and the amount of monthly
              license fees payable, with respect to such Tower.

                                       18

<PAGE>

                               (ii)  Westower  Acquisition  Collateral.  On  the
              Westower Acquisition Date, the Borrower shall execute and deliver,
              or as applicable,  cause  Westower to execute and deliver,  to the
              Collateral Agent (i) a Supplement to Subsidiary Security Agreement
              executed by Westower and each of its Subsidiaries  (other than the
              Foreign  Westower  Subsidiaries),  together  with all  appropriate
              UCC-1 financing statements requested by the Collateral Agent, (ii)
              a Supplement to Subsidiary  Guaranty executed by Westower and each
              of   its   Subsidiaries   (other   than   the   Foreign   Westower
              Subsidiaries),   (iii)  an  amendment   to  the  Borrower   Pledge
              Agreement,  in form and substance  reasonably  satisfactory to the
              Arrangers and their counsel, executed by the Borrower with respect
              to the Capital Stock owned by it in Westower,  and a Supplement to
              Subsidiary   Pledge   Agreement   executed  by  Westower  and  its
              Subsidiaries  with  respect to all of the  Capital  Stock owned by
              each of them in  their  respective  Subsidiaries  (other  than the
              Foreign Westower  Subsidiaries,  in which case the pledge shall be
              with  respect  to  sixty-five  percent  (65%)  (or in the  case of
              Westower Highlight Do Brazil,  sixty percent (60%)) of the Capital
              Stock owned by Westower or its Subsidiaries,  as the case may be),
              together with original stock certificates and corresponding  stock
              powers duly  executed in blank,  (iv) an amendment  and joinder to
              the Trademark Security Agreement, in form and substance reasonably
              satisfactory  to the  Arrangers  and their  counsel,  executed  by
              Westower  and each of its  Subsidiaries  (other  than the  Foreign
              Westower  Subsidiaries)  owning  any  trademark  registrations  or
              applications,  (v)  an  opinion  of  counsel  to  Holdco  and  the
              Borrower,  in form and substance  reasonably  satisfactory  to the
              Arrangers and their  counsel,  regarding the Westower  Acquisition
              and the  Loan  Documents  delivered  to the  Collateral  Agent  in
              connection  therewith,  and (vi) a loan  certificate from Westower
              and  each  of its  Subsidiaries,  together  with  all  appropriate
              attachments thereto.

                      (b)      NTA Investment.

                               (i) Definitive  Documentation.  Promptly upon the
              closing of the NTA  Investment,  the Borrower shall deliver to the
              Arrangers  a full set of  copies  of the duly  executed  documents
              executed in connection with the NTA Investment, including, without
              limitation,  copies of other  consents  required to be obtained in
              connection with the NTA Investment and copies of any documentation
              evidencing the credit facility extended to Newco by the Borrower.

                               (ii)    Assignment    of    Equity     Interests.
              Simultaneously  with  the  closing  of  the  NTA  Investment,  the
              Borrower  shall pledge to the  Collateral  Agent all of the equity
              interests of Newco acquired by the Borrower in connection with the
              NTA  Investment  pursuant  to  a  pledge  agreement  substantially
              identical to the Borrower Pledge Agreement,  and shall immediately
              deliver  all   appropriate   Uniform   Commercial  Code  financing
              statements  required  to  perfect  such  pledge to the  Collateral
              Agent.  The equity  interests  of Newco  acquired by the  Borrower
              shall be free and clear of all Liens  other than those in favor of
              the Collateral Agent.

                                       19

<PAGE>


                               (iii)  Assignment of Purchase  Documentation  and
              Notes  Receivable.  Simultaneously  with  the  closing  of the NTA
              Investment,  the  Borrower  shall (i)  execute  and deliver to the
              Collateral Agent a duly executed  assignment all of the Borrower's
              contract rights arising in respect of the documents evidencing the
              NTA  Investment,  together  with  a  consent  to  such  assignment
              executed by each of the other parties to the NTA  Investment,  and
              (ii) pursuant to the Security Agreement, deliver to the Collateral
              Agent  all of the  original  notes  receivable  issued by Newco in
              favor  of the  Borrower  in  connection  with  the NTA  Investment
              endorsed in blank.

                               (iv)  Copies of  Reports  and other  Information.
              Promptly upon the  Borrower's  receipt  thereof (and, in any event
              within three (3) Business Days of the Borrower's receipt thereof),
              the Borrower shall deliver to the Arrangers  copies of all reports
              and  financial  information  provided  to the  Borrower by or with
              respect to Newco.

              20. Conditions to Effectiveness. This Amendment shall be effective
as of the date first written above (the "Effective Date") upon the following:

                      (a)      the Administrative Agent's receipt of a
              counterpart hereof duly executed by the Borrower and Holdco, and
              by the Majority Lenders;

                      (b) with  respect to the NTA  Investment,  the  Arrangers'
              receipt of an updated  business plan and updated  Projections  for
              the Borrower  demonstrating  the Borrower's  pro forma  compliance
              with  the  Financial  Covenants  after  giving  effect  to the NTA
              Investment;

                      (c)  with  respect  to  the  Westower   Acquisition,   the
              Arrangers'  receipt  of  an  updated  business  plan  and  updated
              Projections  for the Borrower  demonstrating  the  Borrower's  pro
              forma compliance with the Financial  Covenants after giving effect
              to the Westower Acquisition; and

                      (d) the  representations  and warranties of Holdco and the
              Borrower  set forth in the Credit  Agreement  and this  Amendment,
              other than those that are  expressly  made as of a specific  date,
              are true and correct in all material respects with the same effect
              as though such representations and warranties had been made on and
              as of the Effective Date.

              21.  Representations  and  Warranties.  Each of the  Borrower  and
Holdco, for itself and on behalf of each of its Subsidiaries, agrees, represents
and  warrants  in  favor  of  the  Arrangers,   the   Syndication   Agent,   the
Administrative Agent, the Collateral Agent and the Credit Parties that:

                      (a) This Amendment has been executed and delivered by duly
              authorized  representatives  of the Borrower  and Holdco,  and the
              Credit Agreement, as modified

                                       20

<PAGE>


              and  amended by this  Amendment,  constitutes  a legal,  valid and
              binding  obligation of the Borrower and Holdco and is  enforceable
              against  the  Borrower  and Holdco in  accordance  with its terms,
              except as enforceability may be limited by bankruptcy, insolvency,
              reorganization   or  similar  laws  affecting   creditors'  rights
              generally and by the application of general equitable principles;

                      (b) Before and after giving effect to this  Amendment,  no
              Default or Event of Default with respect to the Borrower or Holdco
              has occurred and is continuing;

                      (c) As of the date hereof and after  giving  effect to the
              Westower Acquisition,  (i) the property of the Borrower, at a fair
              valuation on a going concern basis, will exceed its debt; (ii) the
              capital of the Borrower will not be unreasonably  small to conduct
              its business; and (iii) the Borrower will not have incurred debts,
              or have  intended to incur  debts,  beyond its ability to pay such
              debts as they mature;

                      (d) No event  contemplated in connection with the Westower
              Acquisition or the NTA Investment shall occur,  which has not been
              consented to or waived,  the occurrence of which  constitutes,  or
              with  the  passage  of time or  giving  of  notice  or both  would
              constitute,  a material default by Holdco,  the Borrower or any of
              their  respective   Subsidiaries  under  any  material  indenture,
              agreement or other instrument,  including, without limitation, the
              material  Necessary  Authorizations  and  the  Indentures,  or any
              judgment, decree or order, to which Holdco, the Borrower or any of
              their respective  Subsidiaries is a party or by which Holdco,  the
              Borrower or any of their  respective  Subsidiaries or any of their
              respective properties may be bound or affected; and

                      (e) All of the  representations  and  warranties of Holdco
              and the  Borrower  contained in the Credit  Agreement  (other than
              representations  and warranties  that relate solely to a specified
              date) continue to be true and correct in all material  respects as
              of the date hereof as though made on and as of such date.

              22.  Effect  on  the  Credit  Agreement.  Except  as  specifically
provided herein, the Credit Agreement shall remain in full force and effect, and
is hereby ratified,  reaffirmed and confirmed. This Amendment shall be deemed to
be a Loan Document for all purposes.

              23. Counterparts.  This Amendment may be executed in any number of
separate   counterparts  and  by  the  different   parties  hereto  on  separate
counterparts,  each of which shall be deemed an original and all of which, taken
together, shall be deemed to constitute one and the same instrument.  In proving
this Amendment in any judicial proceedings, it shall not be necessary to produce
or account for more than one such  counterpart  signed by the party against whom
such  enforcement is sought.  Any  signatures  delivered by a party by facsimile
transmission shall be deemed an original signature hereto.

                                       21

<PAGE>


              24. Law of Contract. THIS CONSENT SHALL BE CONSTRUED IN ACCORDANCE
WITH AND GOVERNED BY THE INTERNAL  LAWS OF THE STATE OF NEW YORK  APPLICABLE  TO
CONTRACTS MADE AND TO BE PERFORMED WHOLLY WITHIN SUCH STATE.



                [REMAINDER OF THIS PAGE INTENTIONALLY LEFT BLANK]

                                       22

<PAGE>



              IN WITNESS  WHEREOF,  this  Amendment has been duly executed as of
the day and year first written above.

BORROWER:                               SPECTRASITE COMMUNICATIONS, INC.


                                        By:    /s/ David P. Tomick
                                        Name:  David P. Tomick
                                        Title: Executive Vice President, Chief
                                               Financial Officer and Secretary


                                        Attest: /s/ Steven C. Lilly
                                                Name: Steven C. Lilly
                                                Title: Vice President


HOLDCO:                                 SPECTRASITE HOLDINGS, INC.


                                        By:    /s/ David P. Tomick
                                        Name:  David P. Tomick
                                        Title: Executive Vice President, Chief
                                               Financial Officer and Secretary


                                        Attest: /s/ Steven C. Lilly
                                        Name:   Steven C. Lilly
                                        Title:  Vice President




FIRST AMENDMENT (SPECTRASITE COMMUNICATIONS, INC.)

<PAGE>



ADMINISTRATIVE
AGENT:                                  CANADIAN IMPERIAL BANK OF COMMERCE


                                        By:     /s/ Deborah D. Strek
                                        Name:   Deborah D. Strek
                                        Title:  Managing Director, CIBC World
                                                Markets Corp., as Agent




FIRST AMENDMENT (SPECTRASITE COMMUNICATIONS, INC.)

<PAGE>



ARRANGERS:                              CIBC WORLD MARKETS CORP.
                                        (f/k/a CIBC Oppenheimer Corp.)


                                        By:      /s/ Deborah D. Strek
                                        Name: Deborah D. Strek
                                        Title: Managing Director


                                        CREDIT SUISSE FIRST BOSTON


                                        By:      /s/ Kristin Lepri
                                        Name: Kristin Lepri
                                        Title:   Associate

                                        By:      /s/ Bill O'Daly
                                        Name:   Bill O'Daly
                                        Title:     Vice President




FIRST AMENDMENT (SPECTRASITE COMMUNICATIONS, INC.)

<PAGE>



COLLATERAL AGENT:                       CANADIAN IMPERIAL BANK OF COMMERCE



                                        By:    /s/ Deborah D. Strek
                                        Name:  Deborah D. Strek
                                        Title: Managing Director, CIBC World
                                               Markets Corp., as Agent




FIRST AMENDMENT (SPECTRASITE COMMUNICATIONS, INC.)

<PAGE>



SYNDICATION AGENT:                      CREDIT SUISSE FIRST BOSTON


                                        By:     /s/ Kristin Lepri
                                        Name:   Kristin Lepri
                                        Title:  Associate

                                        By:     /s/ Bill O'Daly
                                        Name:   Bill O'Daly
                                        Title:  Vice President




FIRST AMENDMENT (SPECTRASITE COMMUNICATIONS, INC.)

<PAGE>



MANAGING AGENTS:                        BANK OF MONTREAL, CHICAGO BRANCH


                                        By:     /s/ Karen Klapper
                                        Name:   Karen Klapper
                                        Title:  Director


                                        THE BANK OF NOVA SCOTIA


                                        By:     /s/ Vincent J. Fitzgerald, Jr.
                                        Name:   Vincent J. Fitzgerald, Jr.
                                        Title:  Authorized Signatory


                                        BANKBOSTON, N.A.


                                        By:     /s/ Lenny Mason
                                        Name:   Lenny Mason
                                        Title:  Director


                                        DRESDNER BANK AG, NEW YORK AND GRAND
                                        CAYMAN BRANCHES


                                        By:     /s/ Brian E. Haughney
                                        Name:   Brian E. Haughney
                                        Title:  Assistant Vice President


                                        By:     /s/ Patrick A. Keleher
                                        Name:   Patrick A. Keleher
                                        Title:  Vice President


                                        TORONTO DOMINION (TEXAS), INC.


                                        By:     /s/ Sheila M. Conley
                                        Name:   Sheila M. Conley
                                        Title:  Vice President


FIRST AMENDMENT (SPECTRASITE COMMUNICATIONS, INC.)

<PAGE>



                         UNION BANK OF CALIFORNIA, N.A.


                                        By:     /s/ Stender E. Sweeney
                                        Name:   Stender E. Sweeney
                                        Title:  Assistant Vice President




FIRST AMENDMENT (SPECTRASITE COMMUNICATIONS, INC.)

<PAGE>



CO-AGENT:                               CREDIT LYONNAIS NEW YORK BRANCH


                                        By:     /s/ Mark A. Campellone
                                        Name:   Mark A. Campellone
                                        Title:  First Vice President




FIRST AMENDMENT (SPECTRASITE COMMUNICATIONS, INC.)

<PAGE>



LENDERS:                                CIBC INC.


                                        By:     /s/ Deborah D. Strek
                                        Name:   Deborah D. Strek
                                        Title:  Managing Director, CIBC World
                                                Markets Corp., as Agent




FIRST AMENDMENT (SPECTRASITE COMMUNICATIONS, INC.)

<PAGE>



                           CREDIT SUISSE FIRST BOSTON


                                        By:     /s/ Kristin Lepri
                                        Name:   Kristin Lepri
                                        Title:  Associate


                                        By:     /s/ Bill O'Daly
                                        Name:   Bill O'Daly
                                        Title:  Vice President




FIRST AMENDMENT (SPECTRASITE COMMUNICATIONS, INC.)

<PAGE>



                                        BANK OF MONTREAL, CHICAGO BRANCH


                                        By:     /s/ Karen Klapper
                                        Name:   Karen Klapper
                                        Title:  Director



FIRST AMENDMENT (SPECTRASITE COMMUNICATIONS, INC.)

<PAGE>



                                        THE BANK OF NOVA SCOTIA


                                        By:     /s/ Vincent J. Fitzgerald, Jr.
                                        Name:   Vincent J. Fitzgerald, Jr.
                                        Title:  Authorized Signatory




FIRST AMENDMENT (SPECTRASITE COMMUNICATIONS, INC.)

<PAGE>



                                        BANKBOSTON, N.A.


                                        By:     /s/ Lenny Mason
                                        Name:   Lenny Mason
                                        Title:  Director




FIRST AMENDMENT (SPECTRASITE COMMUNICATIONS, INC.)

<PAGE>



                                        DRESDNER BANK AG, NEW YORK AND GRAND
                                        CAYMAN BRANCHES


                                        By:     /s/ Brian E. Haughney
                                        Name:   Brian E. Haughney
                                        Title:  Assistant Vice President


                                        By:     /s/ Patrick A. Keleher
                                        Name:   Patrick A. Keleher
                                        Title:  Vice President




FIRST AMENDMENT (SPECTRASITE COMMUNICATIONS, INC.)

<PAGE>



                         TORONTO DOMINION (TEXAS), INC.


                                        By:     /s/ Sheila M. Conley
                                        Name:   Sheila M. Conley
                                        Title:  Vice President




FIRST AMENDMENT (SPECTRASITE COMMUNICATIONS, INC.)

<PAGE>



                         UNION BANK OF CALIFORNIA, N.A.


                                        By:     /s/ Stender E. Sweeney
                                        Name:   Stender E. Sweeney
                                        Title:  Assistant Vice President




FIRST AMENDMENT (SPECTRASITE COMMUNICATIONS, INC.)

<PAGE>



                         CREDIT LYONNAIS NEW YORK BRANCH


                                        By:     /s/ Mark A. Campellone
                                        Name:   Mark A. Campellone
                                        Title:  First Vice President




FIRST AMENDMENT (SPECTRASITE COMMUNICATIONS, INC.)

<PAGE>



                                        THE BANK OF NEW YORK


                                        By:     /s/ Brendan T. Nedzi
                                        Name:   Brenda T. Nedzi
                                        Title:  Senior Vice President




FIRST AMENDMENT (SPECTRASITE COMMUNICATIONS, INC.)

<PAGE>



                                        CAISSE DE DEPOT ET PLACEMENT DU QUEBEC


                                        By:     /s/ Louis Lavoie
                                        Name:   Louis Lavoie
                                        Title:  Manager


                                        By:     /s/ Lucie Rousseau
                                        Name:   Lucie Rousseau
                                        Title:  Vice President




FIRST AMENDMENT (SPECTRASITE COMMUNICATIONS, INC.)

<PAGE>



                                        CANADIAN IMPERIAL BANK OF COMMERCE


                                        By:     /s/ Deborah D. Strek
                                        Name:   Deborah D. Strek
                                        Title:  Managing Director, CIBC World
                                                Markets Corp., as Agent




FIRST AMENDMENT (SPECTRASITE COMMUNICATIONS, INC.)

<PAGE>



                                        THE CIT GROUP/EQUIPMENT FINANCING, INC.


                                        By:
                                        Name:
                                        Title:




FIRST AMENDMENT (SPECTRASITE COMMUNICATIONS, INC.)


<PAGE>



                                        KZH CYPRESSTREE-1 LLC


                                        By:     /s/ Peter Chin
                                        Name:   Peter Chin
                                        Title:  Authorized Agent




FIRST AMENDMENT (SPECTRASITE COMMUNICATIONS, INC.)

<PAGE>



                                        HELLER FINANCIAL, INC.


                                        By:     /s/ Scott Ziemke
                                        Name:   Scott Ziemke
                                        Title:  Assistant Vice President




FIRST AMENDMENT (SPECTRASITE COMMUNICATIONS, INC.)

<PAGE>



                                        MERRILL LYNCH SENIOR FLOATING RATE
                                        FUND, INC.


                                        By:     /s/ Joseph Matteo
                                        Name:   Joseph Matteo
                                        Title:  Authorized Signatory




FIRST AMENDMENT (SPECTRASITE COMMUNICATIONS, INC.)

<PAGE>



                                        PPM AMERICA, INC., as attorney in fact,
                                        on behalf of
                                        Jackson National Life Insurance Company


                                        By:     /s/ John Walding
                                        Name:   John Walding
                                        Title:  Managing Director




FIRST AMENDMENT (SPECTRASITE COMMUNICATIONS, INC.)

<PAGE>



                                        J.H. WHITNEY MARKET VALUE FUND, L.P.

                                        By:     J.H. Whitney Value GP, Ltd.,
                                                its General Partner


                                        By:     /s/ Daniel J. O'Brien
                                        Name:   Daniel J. O'Brien
                                        Title:  Managing Member




FIRST AMENDMENT (SPECTRASITE COMMUNICATIONS, INC.)

<PAGE>



                                        J.H. WHITNEY MEZZANINE FUND, L.P.

                                        By:     /s/ Daniel J. O'Brien


                                        By:     /s/ Daniel J. O'Brien
                                        Name:   Daniel J. O'Brien
                                        Title:  Managing Member




FIRST AMENDMENT (SPECTRASITE COMMUNICATIONS, INC.)

<PAGE>



                                        BANK OF AMERICA, N.A.


                                        By:     /s/ Edward A. Hamilton
                                        Name:   Edward A. Hamilton
                                        Title:  Managing Director




FIRST AMENDMENT (SPECTRASITE COMMUNICATIONS, INC.)

<PAGE>



                          DEBT STRATEGIES FUND II, INC.


                                        By:     /s/ Joseph Matteo
                                        Name:   Joseph Matteo
                                        Title:  Authorized Signatory




FIRST AMENDMENT (SPECTRASITE COMMUNICATIONS, INC.)

<PAGE>



                                        DEBT STRATEGIES FUND III, INC.


                                        By:     /s/ Joseph Matteo
                                        Name:   Joseph Matteo
                                        Title:  Authorized Signatory




FIRST AMENDMENT (SPECTRASITE COMMUNICATIONS, INC.)


<PAGE>



                         VAN KAMPEN SENIOR INCOME TRUST


                                        By:     /s/ D. D. Pierce
                                        Name:   D. D. Pierce
                                        Title:  Vice President




FIRST AMENDMENT (SPECTRASITE COMMUNICATIONS, INC.)


                                                                   Exhibit 99.1

                                                           For Immediate Release

             SpectraSite HOLDINGS completes acquisition of WESTOWER

     Cary, NC., September 2,  1999--SpectraSite  Holdings,  Inc. (Nasdaq:  SITE)
today  announced that it has completed the  acquisition  of Vancouver,  WA-based
Westower Corp. (Amex: WTW), a leading wireless  communications tower development
and construction firm.

The  transaction,  which was approved  today by the Westower  shareholders,  was
accounted  for as a purchase in which 1.81 shares of  SpectraSite  common  stock
were  exchanged  for  each  outstanding  share of  Westower  stock.  The  merger
agreement was announced on May 17, 1999.

The combined company will be known as SpectraSite Holdings, Inc., and will trade
on Nasdaq under the symbol "SITE" beginning September 3, 1999.

SpectraSite is a leader in the tower  industry,  with a nationwide  portfolio of
approximately   2,400  towers,   1,200   employees,   and  annual   revenues  of
approximately $175 million.

"We're pleased to announce the completion of the  acquisition of Westower," said
Stephen Clark, CEO of SpectraSite.  "This merger  represents the continuation of
our  strategy  to  expand  our tower  inventory,  operational  capabilities  and
geographic  reach.  Combining  the  capabilities  of  SpectraSite  and  Westower
maximizes our ability to complete systems development on behalf of carriers with
increased speed and quality."

Morgan  Stanley Dean Witter,  Goldman  Sachs and Credit Suisse First Boston have
agreed to serve as market makers.

About SpectraSite Communications Inc.
SpectraSite Communications Inc.  (www.spectrasite.com),  based in Cary, NC, is a
leading   owner  and  operator  of   communications   towers  for  the  wireless
telecommunications  industry.  SpectraSite owns nearly 2,400 towers in 45 of the
top 50 population centers in the United States, with clusters of towers in major
markets including Los Angeles, Chicago, San Francisco, Detroit, Atlanta, Dallas,
Boston, Cleveland, St. Louis, Seattle, Tampa, Charlotte,  Norfolk and Nashville.
SpectraSite  has  regional  offices in the New York,  Atlanta,  Chicago  and San
Francisco areas, from which it offers comprehensive turnkey services,  including
project  management,   site  acquisition  services,   construction  and  design,
build-to-suit,  purchase/leaseback,  tower  leasing,  and tower  management  and
maintenance services to facilitate wireless systems development.

About Westower Corporation
Westower Corporation  (www.westower.com),  based in Vancouver,  WA, is a leading
integrated  tower company that provides  complete  tower  services.  The company
designs, builds,  engineers and maintains, as well as owns and operates,  towers
for sending and  receiving  microwave,  cellular,  PCS,  paging and  specialized
mobile radio technologies for broadcast,  telephone and utility companies in the
United States, Canada and Brazil.

This press  release  contains  "forward-looking  statements"  concerning  future
expectations,   plans  or  strategies   that  involve  a  number  of  risks  and
uncertainties.  The Company wishes to caution  readers that certain  factors may
have  affected  the  Company's  actual  results  and  could  cause  results  for
subsequent   periods  to  differ   materially   from  those   expressed  in  any
forward-looking  statement  made by or on behalf of the  Company.  Such  factors
include,  but  are not  limited  to (i)  substantial  capital  requirements  and
leverage   principally  as  a  consequence  of  its  ongoing   acquisitions  and
construction activities,  (ii) dependence on demand for wireless communications,
(iii) the  success of the  Company's  tower  construction  program  and (iv) the
successful operational  integration of the Company's business acquisitions.  The
Company undertakes no obligation to update forward-looking statements to reflect
subsequently occurring events or circumstances.

                                       ###


<PAGE>

CONTACT:
          SpectraSite- Investor Relations       SpectraSite- Media Relations
          Dave Tomick                           Noreen Allen
          919-468-0112                          610-992-0889
          [email protected]               [email protected]

          Westower-Investor Relations           Westower-Media Relations
          Peter Lucas                           Jeffrey Goldberger
          604-576-4755                          212-888-0044
          [email protected]                   [email protected]



                                                                   Exhibit 99.2

                                                         For Immediate Release

CONTACT:

     SpectraSite - Investor Relations         SpectraSite - Media Relations
     Dave Tomick                              Noreen Allen
     919-468-0112                             610-992-0889
     [email protected]                  [email protected]


                 SPECTRASITE HOLDINGS COMPLETES EXCHANGE OFFERS

Cary, N.C., September 15, 1999 - SpectraSite Holdings, Inc. (Nasdaq: SITE) today
announced the  consummation of its exchange offer for all of its outstanding 12%
senior  discount  notes  due  2008  and of its  exchange  offer  for  all of its
outstanding 11 1/4% senior discount notes due 2009.

Pursuant to the exchange offers,  the entire  $225,238,000  aggregate  principal
amount at maturity of  SpectraSite's  previously  outstanding  12% notes and the
entire  $586,800,000  aggregate  principal  amount at maturity of  SpectraSite's
previously  outstanding  11 1/4% notes were tendered  prior to the expiration of
the  respective  exchange  offers and will be exchanged  for the same  aggregate
principal  amount at maturity of SpectraSite's  currently  outstanding 12% notes
and 11 1/4% notes.  The notes issued in the exchange offers have been registered
under the  Securities  Act of 1933,  as amended.  The 12% notes were  originally
issued and sold on June 26, 1998, and the 11 1/4% notes were  originally  issued
and sold on April 20, 1999, in transactions  exempt from registration  under the
Securities Act.

In each case,  the notes issued in the exchange  offers have  substantially  the
same terms and conditions as the previously issued,  unregistered  notes, except
that the new notes are not  subject to the  restrictions  on resale or  transfer
which applied to the unregistered notes.

About SpectraSite Communications, Inc.
SpectraSite Communications, Inc. (www.spectrasite.com),  based in Cary, NC, is a
leading   owner  and  operator  of   communications   towers  for  the  wireless
telecommunications  industry.  SpectraSite owns nearly 2,400 towers in 45 of the
top 50 population centers in the United States, with clusters of towers in major
markets including Los Angeles, Chicago, San Francisco, Detroit, Atlanta, Dallas,
Boston, Cleveland, St. Louis, Seattle, Tampa, Charlotte,  Norfolk and Nashville.
SpectraSite  has  regional  offices in the New York,  Atlanta,  Chicago  and San
Francisco areas, from which it offers comprehensive turnkey services,  including
project  management,   site  acquisition  services,   construction  and  design,
build-to-suit,  purchase/leaseback,  tower  leasing  and  tower  management  and
maintenance services to facilitate wireless systems development.

                                      ###



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