AMERICAN MOBILE SATELLITE CORP
8-K, 1996-12-09
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




                                November 22, 1996
                Date of Report (Date of earliest event reported)



                      AMERICAN MOBILE SATELLITE CORPORATION
             (Exact name of registrant as specified in its charter)



            DELAWARE                   0-23044               93-0976127
  (State or other jurisdiction       (Commission            (IRS Employer
        of incorporation)             File Number)        Identification No.)



                10802 Parkridge Boulevard, Reston, Virginia 22091
               (Address of principal executive offices) (Zip Code)



                                 (703) 758-6000
              (Registrant's telephone number, including area code)



<PAGE>




Item 2.  Acquisition or Disposition of Assets

On November 22, 1996,  the Registrant  acquired the assets of Rockwell  Collins,
Inc.  ("Rockwell")  relating  to its  Land  Transportation  Electronics'  Mobile
Communications   Satellite  Service  business  (the  "Business")  through  which
Rockwell had sold mobile messaging hardware and services to commercial  trucking
fleets.  The assets of the Business  were  acquired  from  Rockwell  through the
assumption  by the  Registrant  of the  various  contracts  and  obligations  of
Rockwell relating to the Business; no additional, direct payments are to be made
under the terms of the Asset Sale Agreement dated as of November 22, 1996.

Prior to the  acquisition,  Rockwell had purchased  satellite  capacity from the
Registrant for resale to its customers in the Business.  In connection  with the
transaction,  the satellite capacity agreement was terminated effective November
22, 1996.

The assets of the Business acquired from Rockwell include tangible equipment and
inventory used in connection with fulfilling the contracts  transferred with the
Business. The Registrant intends to continue such use in operating the Business.



Item 7.  Financial Statements and Exhibits

It is impractical for the Registrant to file the financial statements required
by Item 7 as of the date of this filing.  The  Registrant will file  such 
financial statements for the acquired Business as soon as practicable after they
become available, by amendment to this Form 8-K.  Such amendment will be filed 
within 60 days of the date of this filing.

                                  (c) Exhibits

10.61 -- Asset Sale Agreement dated as of November 22, 1996 by and among 
         Rockwell Collins, Inc., American Mobile Satellite Corporation and 
         AMSC Subsidiary Corporation (filed herewith).

99.9  -- American Mobile Satellite Corporation Press Release No. 96-#25 dated 
         November 25, 1996 (filed herewith).


                                        2

<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.


                                           AMERICAN MOBILE SATELLITE CORPORATION
                                           (Registrant)



Date:   December 9, 1996                   /s/ Randy S. Segal
                                           ------------------
                                           Randy S. Segal
                                           Vice President and General Counsel




                                        3

<PAGE>



                                  EXHIBIT INDEX

Exhibit
Number                                Exhibit
- ------                                -------

10.61            Asset Sale Agreement dated as of November 22, 1996 by and among
                 Rockwell Collins, Inc., American Mobile Satellite Corporation
                 and AMSC Subsidiary Corporation (filed herewith).

99.9             American Mobile Satellite Corporation Press Release No. 96-#25
                 dated November 25, 1996 (filed herewith).


                                        4

<PAGE>


                                                                  Exhibit 10.61

                              ASSET SALE AGREEMENT

                          Dated as of November 22, 1996


                                  by and among

                             ROCKWELL COLLINS, INC.

                                       and

                      AMERICAN MOBILE SATELLITE CORPORATION

                                       and

                           AMSC SUBSIDIARY CORPORATION




<PAGE>


                                TABLE OF CONTENTS


Section                                                                    Page

1.       Assets to Be Acquired..............................................  2

2.       Liabilities to Be Assumed.......................................... 12

3.       Closing Consideration.............................................. 15

4.       Closing............................................................ 15

5.       Representations and Warranties of Seller........................... 16
         (a)      Corporate Organization.................................... 16
         (b)      Corporate Authorization................................... 16
         (c)      No Violation or Conflict.................................. 17
         (d)      Consents, Approvals or Authorizations..................... 18
         (e)      Title..................................................... 19
         (f)      Contracts................................................. 19
         (g)      Compliance with Laws...................................... 20
         (h)      Permits................................................... 24
         (i)      Litigation................................................ 25
         (j)      Intellectual Property..................................... 25
         (k)      Conduct of Business Since October 1, 1996................. 26
         (l)      Employees................................................. 26
         (m)      Employee Benefit Plans.................................... 26
         (n)      Sufficiency of Assets..................................... 26
         (o)      Absence of Changes........................................ 27
         (p)      Statement of Assets and Liabilities and Related
                  Matters................................................... 27

6.       Representations and Warranties of Buyer and Parent................. 29
         (a)      Corporate Organization.................................... 29
         (b)      Corporate Authorization................................... 29
         (c)      No Violation or Conflict.................................. 30
         (d)      Consents, Approvals or Authorizations..................... 31
         (e)      Litigation................................................ 31
         (f)      Information............................................... 32
         (g)      Losses.................................................... 32

7.       Investigation by Buyer; Confidentiality............................ 32

8.       Covenants.......................................................... 33
         (a)      Conduct of Business Prior to the Closing Date............. 33
         (b)      Transfer Taxes............................................ 34
         (c)      Further Assurances........................................ 34
         (d)      Post-Closing Access; Preservation of Records.............. 35
         (e)      Reasonable Best Efforts................................... 38
         (f)      Allocation of Consideration............................... 38
         (g)      Interim Use of Seller's Trademark,
                  Trade Name and Corporate Symbol........................... 39

<PAGE>



         (h)      Performance by Buyer of Obligations
                  under Contracts........................................... 41
         (i)      Insurance................................................. 42
         (j)      Cash Management........................................... 43
         (k)      Consents.................................................. 44
         (l)      Inventory................................................. 45
         (m)      Discounted Satellite Usage Fees........................... 48
         (n)      On-Board Computing........................................ 48
         (o)      [SECTION INTENTIONALLY LEFT BLANK]........................ 49
         (p)      Upgrade and Warranty Obligations.......................... 49
         (q)      Non-Compete............................................... 51
         (r)      Intercompany and Intracompany Accounts.................... 53
         (s)      Right of Payment Offset................................... 53
         (t)      Non-Solicitation.......................................... 53
         (u)      Audited Financial Statements.............................. 54
         (v)      Novation of Customer Contracts............................ 55
         (w)      Grant of Intellectual Property License to Seller.......... 55
         (x)      Sharing of Service Fees................................... 56

9.       Employment Arrangements, Benefits and Pension Plans................ 57
         (a)      Employment................................................ 57
         (b)      Severance Benefits........................................ 58
         (c)      Employee Obligations...................................... 59
         (d)      Welfare Plans............................................. 60
         (e)      Benefit Plans............................................. 60
         (f)      Indemnification........................................... 61

10.      Conditions Precedent to the Obligation of Buyer.................... 61
         (a)      Representations and Warranties............................ 62
         (b)      Covenants and Agreements.................................. 62
         (c)      Opinion of Counsel........................................ 62
         (d)      Legal Proceedings......................................... 62
         (e)      FCC License Modification.................................. 63
         (f)      Transition Agreement...................................... 63
         (g)      Consents Obtained......................................... 63
         (h)      Mutual Release............................................ 63
         (i)      Data Max II (with COM.) Distributor Agreement............. 64

11.      Conditions Precedent to the Obligation of Seller................... 64
         (a)      Representations and Warranties............................ 64
         (b)      Covenants and Agreements.................................. 64
         (c)      Opinion of Counsel........................................ 65
         (d)      Legal Proceedings......................................... 65
         (e)      FCC License Modification.................................. 65
         (f)      Transition Agreement...................................... 65
         (g)      Mutual Release............................................ 65
         (h)      H-S-R Determination....................................... 65
         (i)      Consents Obtained......................................... 66
         (j)      Certificate of Hughes Electronics Corporation............. 66

12.      Finder's Fees, Brokers............................................. 66

                                      -ii-

<PAGE>



13.      Waiver of Compliance with Bulk Transfer Laws....................... 66

14.      Survival of Representations and Warranties......................... 67

15.      Indemnification.................................................... 68
         (a)      Indemnification by Seller................................. 68
         (b)      Indemnification by Buyer.................................. 69
         (c)      Exclusivity............................................... 70
         (d)      Notice of Circumstance.................................... 71
         (e)      Certain Limitations....................................... 73
         (f)      Survival of Indemnification Obligations................... 74

16.      Termination; Effect of Termination................................. 75
         (a)      Termination............................................... 75
         (b)      Effect of Termination..................................... 75

17.      Miscellaneous...................................................... 76
         (a)      Costs Incident to Preparation of Agreement................ 76
         (b)      Parties in Interest....................................... 76
         (c)      Casualty.................................................. 77
         (d)      Assignment; Successors and Assigns........................ 77
         (e)      Notices................................................... 77
         (f)      Waiver; Remedies.......................................... 79
         (g)      Entire Agreement.......................................... 79
         (h)      Amendment................................................. 80
         (i)      Counterparts.............................................. 80
         (j)      Governing Law............................................. 80
         (k)      Disclosure Schedule....................................... 80
         (l)      Captions, Currency........................................ 80
         (m)      Publicity................................................. 81
         (n)      No Representations or Warranties.......................... 81
         (o)      Severability.............................................. 82
         (p)      Dispute Resolution Procedures............................. 82
         (q)      Definition of "Knowledge"................................. 82
         (r)      Guarantee of Buyer's Performance.......................... 83


Annex I - Dispute Resolution Procedures




                                      -iii-






<PAGE>


                              ASSET SALE AGREEMENT


     ASSET SALE AGREEMENT,  dated as of November 22, 1996 ("Agreement"),  by and
among ROCKWELL COLLINS, INC., a Delaware corporation ("Seller"), AMERICAN MOBILE
SATELLITE CORPORATION,  a Delaware corporation  ("Parent"),  and AMSC SUBSIDIARY
CORPORATION, a Delaware corporation ("Buyer").

                              W I T N E S S E T H :
     WHEREAS,  Seller,  through its Intelligent  Transportation  Systems segment
(and  its  predecessors),  has  engaged  and is  engaged  in the  Rockwell  Land
Transportation  Electronics'  Mobile  Communications  Satellite Service business
through which Seller sells mobile messaging  hardware and services to commercial
trucking fleets;

     WHEREAS,  Seller  desires to sell and Buyer desires to purchase the service
portion (but not the  manufacturing  portion as  hereinafter  described)  of the
Rockwell  Land  Transportation   Electronics'  Mobile  Communications  Satellite
Service business which sells mobile messaging and global positioning  monitoring
systems and services for surface  transportation  to commercial  trucking fleets
(the "Business");

     WHEREAS,  upon the terms and  subject  to the  conditions  hereinafter  set
forth,  Seller  desires  to sell and Buyer  desires to  purchase  the Assets (as
hereinafter defined); and



<PAGE>



     WHEREAS,  upon the terms and  subject  to the  conditions  hereinafter  set
forth,  Seller  desires to  transfer  and Buyer  desires  to assume the  Assumed
Liabilities (as hereinafter defined).

     NOW,  THEREFORE,  in consideration of the premises,  the mutual  agreements
hereinafter contained and other good and valuable consideration, the receipt and
sufficiency of which is hereby  acknowledged,  Seller,  Buyer and Parent do each
hereby agree as follows:

1.   Assets to Be Acquired.
     ---------------------

     (a) Subject to the terms and  conditions  set forth herein,  on the Closing
Date (as defined in Section 4) Seller shall sell, convey,  assign,  transfer and
deliver to Buyer,  and Buyer shall  purchase  and acquire  from  Seller,  all of
Seller's  right,  title  and  interest  in and to  all  of the  assets,  rights,
contracts,  leases and agreements  (tangible and intangible,  wherever  located)
used primarily in or relating primarily to the Business (other than the Retained
Assets,  as  defined  in  Section  1(b)),  free and clear of any lien,  security
interest,  pledge,  mortgage,  charge,  restriction,  claim,  retention of title
agreement or other  encumbrance of whatever nature ("Lien") other than Permitted
Liens (as defined in Section  5(e)) as the same shall exist on the Closing Date,
including, without limitation:

             (i) Rockwell Base Station;  LESs;  Tangible Assets.  All
                 ----------------------------------------------
         machinery,   fixtures,   equipment,   packing   materials,
         laboratory  equipment  and   supplies,  computers,

                                      -2-

<PAGE>


         computer systems and computer support  equipment and all other tangible
         personal property  described on Schedule 1(a)(i) all of which items are
         located at Seller's Cedar Rapids facility;

             (ii) Records.  All  financial,  accounting  and operating  data
                  -------
         and  records  within  the  last  five  years  or  otherwise  reasonably
         available  (other  than  such  data and  records  (A)  which  relate to
         Retained  Assets or (B) which  relate to employees of Seller other than
         the  Continued  Employees  (as  defined  in Section  9(a)),  including,
         without  limitation,   all  books,  records,  notes,  sales  and  sales
         promotional data, advertising materials,  credit information,  cost and
         pricing  information,  customer and supplier lists,  reference catalogs
         and payroll and personnel records of all Continued Employees;

              (iii) Certain Intellectual  Property. All commercial and technical
                    ------------------------------
         information,  including  engineering,  production  and  other  designs,
         drawings,  specifications,  formulas,  technology,  computer  programs,
         software,   processes  and  proprietary  information,   trade  secrets,
         copyrights and know-how,  including, without limitation, those relating
         to the Super C protocol;

              (iv)  Contracts.   All  leases,  license  agreements,   
                    ---------
         contracts,  agreements,   sale  orders,   purchase  orders,
         open  bids  and  other  commitments  set  forth  on  
         Schedule  5(f) or  not  required to be set forth  on Schedule

                                      -3-

<PAGE>


         5(f)  pursuant to the terms of Section 5(f)  (collectively,
         the "Contracts");

              (v)   Prepaid Items.  All prepaid expenses,  deposits and
                    -------------
         retentions, including those held by third parties under the
         Contracts;

              (vi)  Licenses, etc.  All licenses, franchises, permits,
                    -------------
         authorizations and approvals to the extent the same are transferable;

              (vii) Goodwill.  Any and all goodwill and going concern value,
                    --------
         if any, of the Business;

              (viii) Trademarks.  All marks  and any  rights  therein  listed on
                     ----------
         Schedule  1(a)(viii)  to the extent that such marks have  acquired  any
         trademark or service mark status,  together with the goodwill,  if any,
         of the  Business  connected  with the use of,  and  symbolized  by, the
         marks;

              (ix)  Inventions.  All  patents,  patent applications, inventions,
                    ----------
         innovation disclosures and mask work registrations listed on Schedule
         1(a)(ix);

              (x)   Causes of Action.  All choses in action, causes of action,
                    ----------------
         rights of recovery, rights of set-off, rights of recoupment and claims;

              (xi)  Breach of Warranty Claims.  Any and all rights or claims 
                    -------------------------
         of  Seller arising  out of  the  breach of  any  express  or 
         implied  warranty by  unaffiliated third-party manufacturers or sellers
         of any of such Assets  or  any  component  part thereof; and

                                      -4-

<PAGE>



              (xii) Mobile  Terminal  Intellectual  Property.  Seller  shall at
                    ----------------------------------------
         Closing  transfer  to  Buyer  all  of  Seller's  existing  intellectual
         property   relating  to  the   manufacture   of  mobile   terminals  or
         authorization  of the manufacture of mobile terminals by a third party.
         The assets to be sold, conveyed, assigned, transferred and delivered by
         Seller to Buyer pursuant to this Agreement are hereinafter collectively
         referred to as the  "Assets".  The Assets will include all additions to
         and  replacements of any of the items described in this Section 1(a) in
         accordance  with this Agreement  between the date of this Agreement and
         the  Closing  Date,  and will  exclude  all  deletions,  sales or other
         disposals of any of the  foregoing in  accordance  with this  Agreement
         between the date of this Agreement and the Closing Date.

     (b) Notwithstanding  anything contained herein to the contrary,  the Assets
to be sold,  conveyed,  assigned,  transferred  and delivered by Seller to Buyer
hereunder shall not include any of Seller's right,  title and interest in and to
the following (collectively, the "Retained Assets"):

             (i) to the extent not covered by Section  1(a)(v),  all cash,  cash
         equivalents,  bank accounts and bank account credit balances, deposits,
         funds,  securities,  short-term  investments,  certificates 
         of deposit,  notes, checks, drafts and similar instruments;

                                      -5-

<PAGE>



              (ii)  all  accounts   receivable,   notes   receivable  and  loans
         receivable  outstanding  on the Closing Date,  together with all claims
         and offsets thereto;

              (iii)  except as  permitted  by Section  8(g),  the marks or names
         "Rockwell",  "Rockwell International",  "Collins",  "Collins Avionics",
         Seller's corporate logo or any other trademarks, trade names or service
         marks  of  Seller,   its   subsidiaries  or  its  affiliates,   or  any
         applications or registrations thereof;

               (iv)  except as  permitted  by  Section  8(g),  all marks and any
         rights  therein  other than those listed on Schedule  1(a)(viii) to the
         extent that such marks listed on Schedule  1(a)(viii) have acquired any
         trademark or service mark status;

               (v) other than those  listed on Schedule  1(a)(ix),  all patents,
         patent applications,  inventions,  innovation disclosures and mask work
         registrations,  provided  that Seller  hereby  grants Buyer a worldwide
         non-exclusive royalty-free,  irrevocable license under any intellectual
         property rights now in existence,  or later coming into existence based
         on patent applications,  included in Retained Assets necessary to carry
         on the Business as constituted on the effective date of this Agreement;

               (vi)  all  pension  plan  and  other  benefit  plan  assets 
         relating  to present  or  former  employees of  Seller

                                      -6-

<PAGE>


         including,  without limitation, Continued Employees (as hereinafter
         defined);

               (vii) all policies of insurance, fidelity, surety or similar
         bonds and the coverages afforded thereby;

               (viii)  all rights to refunds  of all  Federal,  state,  local or
         foreign income and franchise Taxes (as defined in Section 8(f)(ii)) and
         all other taxes and all  assessments,  including,  without  limitation,
         gross receipts, property, sales, use or other taxes and estimated taxes
         relating thereto (and interest and penalties  thereon) actually paid or
         payable by Seller  with  respect to all  taxable  periods  ending on or
         before the Closing  Date and the portion  ending on the Closing Date of
         any taxable  period that begins before but has not ended by the Closing
         Date;

               (ix) all licenses or rights of Seller,  its  subsidiaries  or its
         affiliates  (with  respect  to the  Business)  under  any  intellectual
         property of third parties which cannot be sublicensed or transferred by
         Seller (without any action by or cost to Seller) in connection with the
         sale or transfer of the Business all of which are set forth on Schedule
         1(b)(ix);

               (x) except as and to the  extent  expressly  provided  in 
         Section  8(l), all  inventory  constituting  work-in-process,  raw 
         materials, parts, stores,  spare parts,  repair parts,  components, 
         accessories and supplies (the "Closing Date Parts Inventory"); and

                                      -7-

<PAGE>



               (xi) any matters relating to exploratory discussions conducted by
         Seller concerning the potential development, manufacture and/or sale of
         mobile terminals in India.

     (c) Except as provided in this  Agreement or the  Transition  Agreement (as
hereinafter  defined),  Buyer expressly  acknowledges that the Business does not
include,  and  Seller is not  selling,  conveying,  assigning,  transferring  or
delivering to Buyer,  and that Buyer is not  purchasing or acquiring from Seller
any assets used in or relating to the manufacturing portion of the Rockwell Land
Transportation  Electronics'  Mobile  Communications  Satellite Service business
which for the purposes of this Agreement and the Transition Agreement shall mean
any and all  operations,  wherever  located,  relating to or associated with the
development,  design,  construction,  assembly,  or  production,  of any and all
mobile radio  communications  system  hardware,  including,  but not limited to,
multi-mode mobile terminals, or any part, piece, portion,  component, or segment
thereof,  or of any and all  hardware  for the  interface/integration  of mobile
messaging with on-board  computing and monitoring  systems,  or any part, piece,
portion,  component,  or segment thereof.  Buyer expressly acknowledges that 
the Business  does not  include,  and on the  Closing  Date  Seller is not
selling,  conveying, assigning, transferring or delivering to Buyer,
and  that Buyer is not  purchasing  or  acquiring  from  Seller any assets  
used  in or  relating  to the  manufacturing portion (other than the

                                      -8-

<PAGE>


intellectual property being transferred from Seller to Buyer as provided in this
Agreement)   of   the   Rockwell   Land   Transportation   Electronics'   Mobile
Communications  Satellite  Service business located at (i) Seller's Cedar Rapids
facility and (ii) Rockwell  International  Corporation's  ("Rockwell")  El Paso,
Texas manufacturing  facility,  including,  without  limitation,  the machinery,
fixtures,  equipment, and other tangible personal property described on Schedule
1(c)  (collectively,  the  "Excluded  Manufacturing  Equipment").  Such Excluded
Manufacturing  Equipment  shall be  conveyed  to Buyer  in  accordance  with the
Transition Agreement.

     (d) Buyer  expressly  acknowledges  that,  except to the extent provided in
this  Agreement or the  Transition  Agreement  with respect to the  intellectual
property being  transferred from Seller to Buyer, the Business does not include,
and that Seller is not selling, conveying, assigning, transferring or delivering
to Buyer,  and that Buyer is not  purchasing  or acquiring  from Seller,  any of
Seller's right,  title and interest in and to any or all of the assets,  rights,
contracts,  leases and  agreements  used in or relating to any of the  following
businesses of Seller,  its  subsidiaries or its affiliates:  (i)  "FleetMaster";
(ii) Railroad Electronics; (iii) trucking On Board Computing (including, without
limitation, "TripMaster"); (iv) Integrated Local Governments Systems (including,
without  limitation,  "TransitMaster"  and  "TransMaster");  (v)  Transportation
Systems (including, without limitation, "TraffiCam"); (vi) Driver

                                      -9-

<PAGE>


Information  Systems  (including,  without  limitation,   "PathMaster");   (vii)
Agricultural GPS (including,  without limitation,  "Vision System(TM)");  (viii)
handheld GPS (including, without limitation, "PLGR" and "SOLGR"); (ix) satellite
phone  (including,  without  limitation,  "SEC*SAT");  (x)  military;  and  (xi)
avionics  businesses  and any  prior,  existing  or  future  satellite  or other
communications   capability   or   service   relating   to  any  such   business
(collectively,   the  "Excluded  Businesses").   None  of  the  assets,  rights,
contracts,  leases or  agreements  used in or relating to any such  business are
used primarily in or relate primarily to the Business.

     (e) EXCEPT TO THE EXTENT EXPRESSLY PROVIDED TO THE CONTRARY IN ARTICLES 5,8
AND 15,  BUYER  EXPRESSLY  UNDERSTANDS  AND  AGREES  THAT THE  ASSETS  ARE BEING
ACQUIRED  BY BUYER "AS IS",  "WHERE  IS",  WITH AND  SUBJECT  TO ALL  FAULTS AND
DEFECTS  THEREIN AND WITHOUT ANY  REPRESENTATION,  WARRANTY OR  GUARANTEE OF ANY
KIND,  EITHER  EXPRESS OR IMPLIED,  ARISING OUT OF LAW OR OTHERWISE,  INCLUDING,
WITHOUT  LIMITATION,  ANY EXPRESS OR IMPLIED WARRANTY OF  MERCHANTABILITY  OR OF
FITNESS FOR A PARTICULAR PURPOSE.

     (f) Seller shall  deliver to Buyer at the Closing (as defined in Section 4)
such bills of sale and instruments of transfer as shall  reasonably be requested
by Buyer to effect or evidence the sale,  conveyance,  assignment,  transfer and
delivery of the Assets to Buyer.

     (g)  Anything   contained   herein   to   the  contrary  notwithstanding,
this  Agreement  shall  not  constitute  an  agreement

                                      -10-

<PAGE>


to assign any Contract or license if an  assignment  or attempted  assignment of
the same  without  the  consent  of the other  party or  parties  thereto  would
constitute a breach thereof, violate any applicable law or in any way impair the
rights of Seller or Buyer thereunder.  Seller shall,  prior to the Closing,  use
its reasonable  efforts (it being understood that such efforts shall not include
any requirement of Seller or any of its subsidiaries or its affiliates to expend
money or offer or grant any financial  accommodation to any third party,  except
as and to the extent provided in Section 8(k)) as requested by Buyer,  and Buyer
shall cooperate in all reasonable  respects with Seller,  to obtain all consents
and waivers and to resolve all  impracticalities  of  assignments  or  transfers
necessary  to convey to Buyer the Assets.  If such consent is not obtained or if
an attempted  assignment would be ineffective,  would violate any applicable law
or would impair Seller's or Buyer's rights under any such Contract or license so
that Buyer  would not  receive all such  rights,  then (x) Seller  shall use its
reasonable  efforts (it being understood that such efforts shall not include any
requirement  of Seller or any of its  subsidiaries  or its  affiliates to expend
money or offer or grant any financial  accommodation to any third party,  except
as and to the  extent  provided  in  Section  8(k))  to  provide  or cause to be
provided to Buyer the benefits of any such  Contract or license and Seller shall
promptly pay or cause to be paid to Buyer, when received, all moneys received by
Seller with  respect to any such  Contract or license and (y) to the extent that
Seller

                                      -11-

<PAGE>



provides  to Buyer the  benefits of any  Contract  or license,  Buyer shall pay,
perform and  discharge on behalf of Seller all of Seller's  debts,  liabilities,
obligations and commitments thereunder in a timely manner and in accordance with
the terms thereof.

2. Liabilities to Be Assumed.
   -------------------------

     (a) Subject to the terms and conditions set forth herein,  in consideration
for the sale,  conveyance,  assignment,  transfer  and delivery of the Assets to
Buyer,  on the Closing Date Seller shall  assign,  convey and transfer to Buyer,
and Buyer shall assume and undertake to pay, perform and discharge,  in a timely
manner  and in  accordance  with  the  terms  thereof,  all of  Seller's  debts,
liabilities,  obligations  and  commitments  arising  out of or  relating to the
Assets or the Business of any kind,  character or description,  whether known or
unknown, accrued, absolute, contingent,  determined,  determinable or otherwise,
whether  presently in existence  or arising  hereafter  (other than the Retained
Liabilities as defined in Section 2(b)), including, without limitation, any such
debts, liabilities, obligations and commitments arising under or relating to any
Contract  (including,  without  limitation,  any warranty  obligation in respect
thereof), except as expressly provided herein or in the Transition Agreement.

              (i)  Parent  and Buyer  expressly  understand  and agree  that any
         obligation or liability relating to the manufacture, after the Closing,
         by anyone other than Seller

                                      -12-

<PAGE>


         of mobile  terminals or other hardware  (including  component  parts of
         mobile   terminals   that  anyone   other  than  Seller   assembles  or
         manufactures)  in  connection  with the  Business  (including,  without
         limitation,  all product  liability  claims  that arise  from,  and all
         supply  contracts for  component  parts to which Seller is not a party,
         relating  to  such  manufacture  of  mobile  terminals)  shall  for the
         purposes of this Agreement constitute Assumed  Liabilities,  as defined
         in clause (ii) below; and

              (ii)  The  liabilities  and  obligations  to be  assumed  by Buyer
         pursuant  to  this  Agreement,   including,   without  limitation,  the
         liabilities  and  obligations   described  in  clause  (i)  above,  are
         hereinafter collectively referred to as the "Assumed Liabilities".

     (b)  Notwithstanding  anything  contained  herein to the  contrary,  Seller
expressly  understands and agrees that the following  obligations of Seller (the
"Retained Liabilities") shall be excluded from the Assumed Liabilities:

              (i)   any Tax liability of Seller for any Tax  period or
         portion thereof ending on or prior to the Closing Date;

              (ii)  any liability arising out of or relating to a Retained
         Asset;

              (iii) any and all obligations arising out of or relating to the
         Product Sales Agreement dated December 20, 1994  by and  between
         Motorola, Inc. and Seller;

                                      -13-

<PAGE>




              (iv) any and all debts,  liabilities,  obligations and commitments
         of  Seller of any  kind,  character  or  description  whether  known or
         unknown, accrued,  absolute,  contingent,  determined,  determinable or
         otherwise,  whether  presently in existence  or arising  hereafter  not
         arising out of or not relating to the Assets;

               (v) any  obligation or liability  relating to the  manufacture by
         Seller of mobile terminals or other hardware (including component parts
         of  mobile   terminals  that  Seller   assembles  or  manufactures)  in
         connection with the Business (including, without limitation, all supply
         contracts for component parts of mobile terminals and product liability
         claims that arise from such manufacture);

               (vi) any termination  liability arising out of or relating to the
         exercise by any customer of its termination  protection  provision,  in
         accordance  with the terms and  conditions  set forth  therein,  of any
         Contract identified on Section III of Schedule 5(c);

               (vii) any liability arising out of or relating  to any of the
         Excluded Businesses;

               (viii) any other liabilities and obligations expressly retained
         by Seller under this Agreement; and

               (ix)  any  and  all  obligations  arising  out  of  or
         relating  to the  Mobile Satellite Communications Agreement,
         dated  May 8, 1992,  as  amended, between  Rockwell
         International  Corporation  and  CRST,  Inc.   (the  "CRST

                                      -14-

<PAGE>


         Agreement"); provided, however, that such obligations shall cease being
         a Retained  Liability  upon the  execution and delivery of a reasonably
         acceptable Novation Agreement by and among Rockwell, Seller, CRST, Inc.
         and Buyer  with  respect  to the CRST  Agreement  (the  "CRST  Novation
         Agreement").

Seller  shall  remain  liable  for all  Retained  Liabilities  and  shall pay or
discharge,   as  and  when  the  same  become  due  and  payable,  the  Retained
Liabilities.

     (c) Buyer shall  execute and deliver to Seller at the Closing  such written
instruments  of assumption as shall  reasonably be requested by Seller to effect
or evidence the assumption by Buyer of the Assumed Liabilities.

3.   Closing Consideration.
     ---------------------

     In  consideration  for  the  sale,  conveyance,  assignment,  transfer  and
delivery  of  the  Assets  at  the  Closing,  Buyer  shall  assume  the  Assumed
Liabilities.

4.   Closing.
     -------

     The Closing of the  purchase and sale of the Assets and the  assumption  of
the Assumed Liabilities (the "Closing") will take place at the offices of Battle
Fowler LLP, Park Avenue Tower, 75 East 55th Street, New York, New York 10022, at
10:00 a.m. New York time on November  22, 1996 or at such other place,  date and
time as the parties  hereto may agree  (such time and date of the Closing  being
herein called the "Closing Date"). The

                                      -15-

<PAGE>


Closing shall be deemed to be effective at 11:59 p.m. on the Closing Date.

5.   Representations and Warranties of Seller.
     ----------------------------------------

     Seller hereby represents and warrants to Buyer as follows:

     (a)  Corporate  Organization.  Seller is a corporation  duly  incorporated,
          -----------------------
validly  existing and in good standing  under the laws of the State of Delaware.
Seller has all requisite corporate power and authority to own, lease and operate
the Assets where such Assets are now owned,  leased or operated.  Seller is duly
licensed  and  qualified  to  do  business  and  is  in  good  standing  in  all
jurisdictions  in which the  character  or location of the  properties  owned or
leased by it or the nature of the business  conducted by it makes such licensing
or  qualification  necessary,  except  where the  failure to be so  licensed  or
qualified  would  not  have a  material  adverse  effect  on (i)  the  business,
operations  or condition  (financial or otherwise) of the Business or the Assets
or (ii) the ability of Seller to consummate  the  transactions  contemplated  by
this  Agreement  or the  Transition  Agreement  (each of (i) or (ii) a "Material
Adverse Effect").

     (b) Corporate  Authorization.  Seller has  all  requisite  corporate power
         ------------------------
and  authority  to  execute  and  deliver this  Agreement  and  the Transition
Agreement and to perform  its  obligations  hereunder  and  thereunder.  This
Agreement,  the Transition  Agreement and all  instruments of transfer to be

                                      -16-

<PAGE>


delivered  by  Seller  pursuant  hereto  and  thereto  have been or will be duly
authorized by all necessary corporate action on behalf of Seller. This Agreement
and the Transition  Agreement constitute legal, valid and binding obligations of
Seller,  and all  instruments  of transfer to be delivered  pursuant  hereto and
thereto, when executed and delivered, will constitute,  legal, valid and binding
obligations  of Seller,  enforceable  against  Seller in  accordance  with their
respective terms,  except as such  enforceability  may be limited by bankruptcy,
insolvency, reorganization,  moratorium or similar laws relating to or affecting
the  enforcement  of creditors'  rights in general and by general  principles of
equity.

     (c)  No  Violation  or  Conflict.   None  of  the  execution,
          ---------------------------
delivery or performance of this Agreement or the Transition  Agreement by Seller
will (i) conflict with the Certificate of  Incorporation or By-Laws of Seller or
(ii)  violate,  conflict  with,  result in a breach of, or entitle  any party to
accelerate the  performance of any Contract (other than with respect to consents
to the  transactions  contemplated  hereby under Contracts)  material  mortgage,
indenture, deed of trust, license, lease, contract,  commitment,  loan agreement
or agreement to which Seller is a party or any material law,  rule,  regulation,
order,  ruling,  decree,  judgment or  arbitration  award to which  Seller (with
respect to the Business or the Assets) is subject,  except for such  violations,
conflicts and breaches subject to this clause (ii) which  individually or in the
aggregate would not have a

                                      -17-

<PAGE>


Material  Adverse  Effect.  Except as set forth on  Schedule  5(c),  no consent,
approval or  authorization  of any  person,  partnership,  corporation  or other
entity is required  under any Contract set forth on Schedule  5(f) in connection
with the sale of the Assets as contemplated hereby or the execution and delivery
of this Agreement or the Transition  Agreement or the  consummation by Seller of
the transactions  contemplated  hereby and thereby,  other than any such consent
which if not  obtained  would not have a  Material  Adverse  Effect and any such
consent  that is  applicable  as a result of the  specific  legal or  regulatory
status of Buyer or as a result of any other  facts that  specifically  relate to
the business or  activities  in which Buyer is or proposes to be engaged,  other
than the Business.

     (d)  Consents, Approvals or Authorizations.  Except as set forth on
          -------------------------------------
Schedule  5(d), no material  consent,  approval or  authorization  of, filing or
registration with, or notification to, any governmental or regulatory  authority
or agency,  domestic or foreign (a  "Governmental  Authority") is required by or
with respect to Seller in  connection  with the  execution  and delivery of this
Agreement or the Transition Agreement by Seller or the consummation by Seller of
the  transactions   contemplated  hereby  and  thereby,   other  than  any  such
requirement  that is  applicable  to Buyer as a result of the specific  legal or
regulatory  status of Buyer or as a result of any other facts that  specifically
relate  to the  business  or  activities  in which  Buyer is or  proposes  to be
engaged, other than the Business.

                                      -18-

<PAGE>




     (e)     Title.  Seller (with  respect  to  the  Business) owns  all  the
             -----
Assets,  free and clear of any Lien,  except  for those (i)  referred  to in the
Schedules,  (ii)  for  Taxes  not  yet due or  payable,  (iii)  that  constitute
mechanics',  carriers',  workers'  or  other  like  liens or (iv)  that  neither
individually  nor in the aggregate are material to the Business or the Assets in
character, amount or extent (the Liens described in clauses (i), (ii), (iii) and
(iv) above are collectively referred to herein as "Permitted Liens").

     (f)    Contracts.
            ----------
            (i) Schedule 5(f) sets forth all (A) Contracts to which Seller (with
         respect to the  Business)  is a party or by which  Seller or the Assets
         may be bound or affected  (other than binding open bids and  proposals)
         which  are in effect  on the date  hereof  and  expressly  provide  for
         aggregate future payments (other than warranty and other
        contingent payments) to or from Seller (with respect to the Business) of
         more than  Twenty-Five  Thousand  Dollars  ($25,000)  and (B) executory
         written binding open bids and proposals by Seller or by which Seller or
         the  Assets may be bound or  affected  (with  respect to the  Business)
         which  are in  effect  on the date  hereof  and  expressly  contemplate
         aggregate  future  payments  (other than warranty and other  contingent
         payments)  to  Seller  (with  respect  to the  Business)  of more  than
         Twenty-Five   Thousand  Dollars   ($25,000),   except  those  Contracts
         described in clause (A) or

                                      -19-

<PAGE>


         (B) above that may be canceled by Buyer without  material  penalty upon
         not more than 90 days' notice.

             (ii) Except as set forth on Schedule  5(f), on the date hereof,  to
         Seller's knowledge, there are no (A) defaults or threatened defaults on
         the part of Seller under the  provisions  of any Contracts set forth on
         Schedule 5(f) or (B) defaults or threatened defaults on the part of the
         other party or parties under the  provisions of any Contracts set forth
         on  Schedule  5(f),  except  in  either  case  (I) for  defaults  which
         individually  or in the  aggregate  would not have a  Material  Adverse
         Effect and (II) that in order to avoid a default  under such  Contracts
         the  consent of the other  party or parties  thereto may be required in
         connection with the transactions  contemplated  hereby,  which consents
         are set forth on Schedule 5(d).

             (iii)  Except as set forth on  Schedule  5(f),  each  Contract is a
         valid,  legal  and  binding  obligation  of  Seller,  and  to  Seller's
         knowledge,  of the other parties thereto, and no defenses,  offsets, or
         counterclaims  thereto have been asserted,  and to Seller's  knowledge,
         there does not exist any condition which, after notice or lapse of time
         or both,  would be a valid basis for the assertion by any party thereto
         of any such defense, offset or counterclaim.

     (g) Compliance with Laws.
         --------------------

             (i)   To  Seller's knowledge, except as set forth on
         Schedule  5(g),  Seller (with  respect to the Business

                                      -20-

<PAGE>


         and  the  Assets)  is  in  compliance  with  all  laws,   statutes  and
         regulations (other than Environmental Laws) of Governmental Authorities
         applicable  to it, except where the failure to so comply would not have
         a Material Adverse Effect.

             (ii) To Seller's knowledge,  Seller has obtained, and now maintains
         as currently valid and effective,  all permits (all of which are listed
         on Schedule 5(g) hereto)  required  under the  Environmental  Laws (the
         "Environmental  Permits")  in  connection  with  the  operation  of the
         Business. To Seller's knowledge,  except as set forth in Schedule 5(g),
         in  connection  with Seller's  operation of the Business,  Seller is in
         compliance with all material terms and conditions of the  Environmental
         Permits and all applicable Environmental Laws.

              (iii) To  Seller's  knowledge,  Seller has  provided  to Buyer all
         material  information and  communications  (whether from a Governmental
         Authority,  employer  or other  person)  in its  possession  or control
         relating to the Business  regarding alleged or suspected  noncompliance
         with any  Environmental  Laws or  Environmental  Permits  or alleged or
         suspected liability under any Environmental Laws.

              (iv) To Seller's knowledge,  except as disclosed on Schedule 5(g),
         there are no material  environmental liens or other encumbrances on any
         of the properties owned or leased by the Seller in connection with

                                      -21-

<PAGE>


         the  operation of the  Business,  and no  government  actions have been
         taken or are in process which are  reasonably  likely to subject any of
         such properties to such liens or other  encumbrances,  and Seller would
         not be  required  to place any notice or  restriction  relating  to the
         presence of Materials of Environmental Concern at any property owned or
         leased  by it in any  deed to  such  property  that  is or was  used in
         connection with the operation of the Business.

              (v) To Seller's  knowledge,  except as set forth in Schedule 5(g),
         there is no  Environmental  Claim  arising  from the  operation  of the
         Business pending or, to Seller's knowledge, threatened against Seller.

              (vi) To Seller's knowledge,  except as set forth in Schedule 5(g),
         there  are no  past  or  present  actions,  activities,  circumstances,
         conditions,  events  or  incidents  relating  to the  operation  of the
         Business,   including,   without  limitation,  the  release,  emission,
         discharge,  presence  or  disposal  of any  Material  of  Environmental
         Concern,   that  are  reasonably  likely  to  form  the  basis  of  any
         Environmental Claim against Buyer or the Assets.

              (vii) Definitions.  For purposes of this Agreement, the terms
                    -----------
         listed below shall have the following meanings:

                    (A)   "Claims"  shall  mean  all  actions,  causes
                           ------
         of  action,   suits,  debts, dues, sums of money,  accounts,

                                      -22-

<PAGE>


         reckonings,   bonds,   bills,   specialties,    covenants,   contracts,
         controversies,  agreements,  promises, variances,  trespasses, damages,
         judgments,   extents,  executions,   claims,  liabilities  and  demands
         whatsoever, in law or equity.

                    (B)   "Environmental Claim" means any Claim, investigation
                           -------------------
         or  notice  by any  person  alleging  potential  liability  (including,
         without  limitation,   potential  liability  for  investigatory  costs,
         cleanup costs,  governmental response costs, natural resources damages,
         property  damages,  personal  injuries  or  fatalities,  or  penalties)
         arising out of, based on or resulting from (x) the presence, release or
         threatened  release into the  environment of, or human exposure to, any
         Material of Environmental Concern at any location, whether or not owned
         or operated by Seller or (y) activities or conditions forming the basis
         of any  violation,  or alleged  violation  of, or  liability or alleged
         liability under, any Environmental Law.

                    (C)   "Environmental Laws" shall mean all Federal, state
                           ------------------
         and local laws (including common law), statutes,  rules,   regulations
         and  ordinances   (including  any  amendments   thereto),   including,
         but  not  limited  to,  the  Comprehensive   Environmental  Response,
         Compensation, and Liability Act ("CERCLA"), 42 U.S.C. Sec. 9601
         et seq., and the Resource Conservation and Recovery Act, 42 U.S.C.
         -- ---
         Sec. 6901 et seq., the Federal Water Pollution Control Act, 33 U.S.C.
                   -- ---

                                      -23-

<PAGE>



         Sec. 1251 et seq., the Clean Air Act, 42 U.S.C. Sec. 1857 et seq., and
                   -- ---                                          -- ---
         the Toxic Substances Control Act, 15 U.S.C. Sec. 2601 et seq., orders,
                                                               -- ---
         decrees,  plans,  codes,  judgments,   injunctions,  notice  or  demand
         letters, prohibitions,  obligations,  schedules, timetables, standards,
         conditions or  requirements  issued,  entered,  approved or promulgated
         thereunder,  relating to pollution or protection of human health or the
         environment, including laws relating to emissions, discharges, releases
         or threatened releases of Materials of Environmental  Concern in, into,
         onto or upon the environment  (including,  without limitation,  ambient
         air,  surface water,  ground water, or land), or otherwise  relating to
         the manufacture,  processing, distribution, use, treatment, collection,
         accumulation, storage, disposal, transport, or handling or Materials of
         Environmental Concern.

                    (D)   "Materials of Environmental Concern"  shall  mean all
                           ----------------------------------
         chemicals,  pollutants,  contaminants,  wastes,  toxic  substances,
         petroleum, petroleum products and hazardous substances (as  defined in
         Section  101(14) of CERCLA, 42 U.S.C. Sec. 9601(14)), or solid or
         hazardous wastes as now or hereafter defined under any Environmental
         Laws.

     (h) Permits.   Schedule  5(h)  sets  forth  all  governmental  franchises,
         -------
licenses,  permits,  authorizations and approvals  necessary to enable Seller to
own,  lease or  otherwise  hold the  Assets  and to  carry  on the  Business  as
presently conducted, other than any such franchises, licenses, permits,

                                      -24-

<PAGE>



authorizations  or  approvals  which if not  obtained  would not have a Material
Adverse Effect.

     (i)  Litigation.  Except as set forth on Schedule  5(i), on the date hereof
          ----------
Seller is not a party to any legal action, suit or other proceeding by or before
any court,  arbitrator or  administrative  agency (A) which would, if determined
adversely,  individually or in the aggregate,  have a Material Adverse Effect or
(B) which challenges or otherwise  relates to the  transactions  contemplated by
this Agreement or the Transition Agreement, and on the date hereof Seller is not
aware that any such legal action,  suit or other proceeding has been threatened.
Except  as  set  forth  on  Schedule  5(i),  on the  date  hereof  there  are no
outstanding orders, rulings,  decrees or judgments to which Seller (with respect
to the  Business)  is a party,  or by which it is bound,  by or with any  court,
arbitrator or  administrative  agency which could (x)  reasonably be expected to
have a Material  Adverse  Effect or (y)  challenge  or  otherwise  relate to the
transactions contemplated by this Agreement or the Transition Agreement.

     (j)  Intellectual  Property.  Except as set forth on Schedule  5(j), on the
          ----------------------
date hereof,  to Seller's  knowledge,  there are no material  written  claims or
demands of any person  pertaining  to, or any  proceedings  which are pending or
threatened  which  allege  that the  conduct  of  Seller  regarding  any  Assets
infringes the intellectual property rights of others.

                                      -25-

<PAGE>



     (k)  Conduct of  Business  Since  October  1, 1996.  Except as set forth on
          ---------------------------------------------
Schedule  5(k),  since  October 1, 1996 to the date hereof the Business has been
conducted in the ordinary course.

     (l) Employees. On the date hereof there is no labor strike or work stoppage
         ---------
pending or, to Seller's  knowledge,  threatened  against Seller (with respect to
the Business) which would have a Material Adverse Effect. No Continued  Employee
is entitled to the  benefits of any  collective  bargaining  agreement  or other
labor union contract.

     (m) Employee  Benefit Plans.  Schedule 5(m) hereto sets forth each material
         -----------------------
pension, retirement, profit-sharing, deferred compensation, stock bonus or other
similar plan; each material medical,  vision,  dental or other health plan; each
material  vacation,  severance  or life  insurance  plan and any other  material
employee  benefit  plan to  which  Seller  on the date  hereof  is  required  to
contribute  in  respect  of the  Business,  or which  Seller on the date  hereof
sponsors for the benefit of any  employees of Seller  engaged in the Business or
under which current employees (or their  beneficiaries) of Seller engaged in the
Business are on the date hereof  eligible to receive  benefits.  Seller does not
participate in a  "multiemployer  plan" in respect of the Business as defined in
Section  4001(a)(3) of the Employee  Retirement  Income Security Act of 1974, as
amended ("ERISA").

     (n) Sufficiency of Assets.  The  Assets  constitute,  and  on  the
         ---------------------
Closing Date will  constitute,  substantially  all of the assets (other than the
Closing Date Parts Inventory) that are

                                      -26-

<PAGE>


necessary  for the conduct by Buyer of the  Business in  substantially  the same
manner as the Business is being conducted on the date hereof.

     (o) Absence of Changes. Except as disclosed in Schedule 5(o), since October
         ------------------                         -------------
1, 1996, there has not been:

              (i) any sale, lease, transfer, pledge,  encumbrance, or assignment
         of any  Assets,  tangible  or  intangible,  other than in the  ordinary
         course of business, or any damage,  destruction or loss, whether or not
         covered by  insurance,  which has had or would have a Material  Adverse
         Effect on the Business taken as a whole;

              (ii) any entry into any  agreement,  commitment or  transaction by
         Seller with respect to the Business except  agreements,  commitments or
         transactions  disclosed  to Buyer in a Schedule or entered  into in the
         ordinary course of business or as contemplated by this Agreement or the
         Transition Agreement; or

              (iii) any incurrence of any Assumed  Liabilities other than in the
         ordinary course of business consistent with past practices.

     (p) Statement of Assets and Liabilities and Related Matters.
         -------------------------------------------------------

              (i)  Schedule  5(p)  is  an  unaudited  Statement  of  Assets  and
         Liabilities  as of  September  30, 1996 (the  "Statement  of Assets and
         Liabilities").  The Statement of Assets and  Liabilities  includes only
         those amounts that

                                      -27-

<PAGE>


         relate to the Assets and the  Assumed  Liabilities.  The  Statement  of
         Assets and Liabilities  accurately presents,  in all material respects,
         the Assets and the  Assumed  Liabilities  as of  September  30, 1996 in
         accordance  with the  accounting  practices and  procedures of Seller's
         Avionics  and  Communications  business.  The  amounts set forth in the
         Statement of Assets and  Liabilities  have been obtained from the books
         of  account   and   financial   records  of   Seller's   Avionics   and
         Communications  business relating to the Business.  Buyer  acknowledges
         and understands that (A) the amount of the Warranty Reserves  reflected
         on the  Statement of Assets and  Liabilities  in no way limits  Buyer's
         obligations  with respect to warranty  and repair  contained in Section
         8(p)(ii) and (B) the Statement of Assets and  Liabilities  has not been
         prepared in accordance with Generally Accepted Accounting Principles.

              (ii)  To  Seller's   knowledge,   there  are  no   liabilities  or
         obligations  with  respect  to the  Assets or the  Business  except (A)
         Retained  Liabilities,   (B)  liabilities  and  obligations  which  are
         disclosed in this Agreement and the Schedules or in the Contracts,  (C)
         other  liabilities and  obligations  incurred in the ordinary course of
         business  which  individually  or in the  aggregate  would  not  have a
         Material Adverse Effect and (D) other liabilities and obligations which
         are accrued on the Statement of Assets and Liabilities.

                                      -29-

<PAGE>



6.   Representations and Warranties of Buyer and Parent.
     --------------------------------------------------

     Buyer and Parent hereby represent and warrant to Seller as follows:

     (a) Corporate Organization.  Each of Buyer and Parent is a corporation duly
         ----------------------
incorporated,  validly existing and in good standing under the laws of the State
of Delaware. Buyer is a wholly-owned subsidiary of Parent.

     (b) Corporate  Authorization.  Each of Buyer and Parent has all  requisite
         ------------------------
corporate  power and  authority  to execute and deliver this  Agreement  and the
Transition  Agreement and to perform its  obligations  hereunder and thereunder.
This Agreement, the Transition Agreement and all instruments of assumption to be
delivered by Buyer or by Parent pursuant hereto and thereto have been or will be
duly authorized by all necessary corporate action on behalf of Buyer and Parent.
This Agreement and the Transition  Agreement constitute legal, valid and binding
obligations  of Buyer  and  Parent,  and all  instruments  of  assumption  to be
delivered  pursuant  hereto and  thereto,  when  executed  and  delivered,  will
constitute,   legal,  valid  and  binding   obligations  of  Buyer  and  Parent,
enforceable  against each of them in  accordance  with their  respective  terms,
except  as  such  enforceability  may  be  limited  by  bankruptcy,  insolvency,
reorganization,  moratorium  or  similar  laws  relating  to  or  affecting  the
enforcement of creditors' rights in general and by general principles of equity.

                                      -29-

<PAGE>



     (c) No Violation or Conflict. Except as set forth on Schedule 6(c), none of
         ------------------------
the execution, delivery or performance of this Agreement by Buyer or Parent, the
Transition  Agreement  by  Buyer  or the  consummation  by  each  of them of the
transactions contemplated hereby and thereby will (i) conflict with the Restated
Certificate  of  Incorporation  or By-Laws  of Buyer or Parent or (ii)  violate,
conflict  with,  result in a breach of or entitle  any party to  accelerate  the
performance of any material mortgage,  indenture, deed of trust, license, lease,
contract,  commitment, loan agreement or agreement to which Buyer or Parent is a
party or any material law, rule, regulation,  order, ruling, decree, judgment or
arbitration  award to which each of them is subject  which would have a material
adverse effect on Buyer's ability to consummate the transactions contemplated by
this Agreement or the Transition Agreement.  None of the execution,  delivery or
performance  of this Agreement by Buyer or Parent,  the Transition  Agreement by
Buyer or the  consummation  by either of them of the  transactions  contemplated
hereby and thereby will  violate,  conflict with or result in a breach of any of
the documents or  instruments  relating to Parent's Two Hundred and  Twenty-Five
Million Dollar  ($225,000,000)  debt facility with Morgan Guaranty Trust Company
of New York and the Toronto Dominion Bank. Except as set forth on Schedule 6(c),
no material  consent,  approval  or  authorization  of any person,  partnership,
corporation or entity is required in connection  with the execution and delivery
of this Agreement by Buyer or Parent, the

                                      -30-

<PAGE>


Transition  Agreement  by  Buyer  or the  consummation  by  each  of them of the
transactions contemplated hereby and thereby.

     (d) Consents, Approvals or Authorizations.     Except  as set forth on
         -------------------------------------

Schedule  6(d), no material  consent,  approval or  authorization  of, filing or
registration with, or notification to, any Governmental Authority is required by
or with respect to Buyer or Parent in connection with the execution and delivery
of  this  Agreement  or  the  Transition  Agreement  by  each  of  them  or  the
consummation  by Buyer and Parent of the  transactions  contemplated  hereby and
thereby.

     (e) Litigation. On the date hereof none of Buyer or its subsidiaries or its
         ----------
affiliates  (including,  without  limitation,  Parent)  is a party to any  legal
action,  suit  or  other  proceeding  by or  before  any  court,  arbitrator  or
administrative agency (i) with respect to which there is a reasonable likelihood
of an adverse  determination  which would have a material  adverse effect on the
ability of Buyer or Parent to consummate the transactions contemplated hereby or
(ii) which challenges or otherwise  relates to the transactions  contemplated by
this Agreement or the Transition Agreement, and on the date hereof neither Buyer
nor Parent is aware that any such legal  action,  suit or other  proceeding  has
been threatened.  On the date hereof there are no outstanding  orders,  rulings,
decrees or judgments to which Buyer or any of its subsidiaries or its affiliates
(including,  without  limitation,  Parent) is a party or by which any of them is
bound by or with any court, arbitrator or

                                      -31-

<PAGE>


administrative  agency which could (x) reasonably be expected to have a material
adverse effect on the ability of Buyer or Parent to consummate the  transactions
contemplated  hereby or (y)  challenge or otherwise  relate to the  transactions
contemplated by this Agreement or the Transition Agreement.

     (f)  Information.  Seller  has  provided  Buyer  with  such  access  to the
          -----------
facilities,  books,  records and  personnel  of the Business as Buyer has deemed
necessary and appropriate in order for Buyer to investigate to its  satisfaction
the Business  sufficiently to make an informed  investment  decision to purchase
the Assets,  to assume the Assumed  Liabilities and to enter into this Agreement
and the  Transition  Agreement.  Buyer  has such  knowledge  and  experience  in
financial and business  matters that Buyer is capable of  evaluating  the merits
and risks of the  purchase  of the  Assets  and the  assumption  of the  Assumed
Liabilities.

     (g) Losses.  Buyer and Parent  acknowledge and understand that the Business
         ------
has historically  suffered significant operating losses and that there can be no
assurance that such operating losses will not continue after the Closing Date.

7.   Investigation by Buyer; Confidentiality.
     ---------------------------------------

     Prior to the Closing, or, if earlier, the date this Agreement is terminated
pursuant  to Section  16(a) or  otherwise,  Seller  will  provide  Buyer and its
representatives,  employees,  counsel and accountants  with  reasonable  access,
during normal

                                      -32-

<PAGE>


business hours and upon reasonable notice, to the facilities, books, records and
personnel  of Seller which relate to the Business and will provide to Buyer such
other  information  with  respect  to the  Business  as Buyer  shall  reasonably
request;  provided,  however, that such access shall not unreasonably  interfere
with the normal operations of Seller or the Business.  Buyer,  Parent and Seller
acknowledge that all such information  being provided is subject to the terms of
the Proprietary Information Exchange Agreement dated as of March 4, 1996 between
Parent  and  Seller  ("Confidentiality  Agreement"),  the  terms  of  which  are
incorporated herein by reference.

8. Covenants.
   ---------

     (a) Conduct of Business Prior to the Closing Date.  Between the date hereof
         ---------------------------------------------
and  the  Closing,  except  as  set  forth  on  Schedule  8(a)  or as  otherwise
contemplated  by this  Agreement or with Buyer's prior written  consent,  Seller
will:

              (i)   cause the Business to be conducted only in the ordinary
         course consistent with past practice;

              (ii) cause management of the Business to use reasonable commercial
         efforts to seek to preserve the business relationships existing between
         the  Business  and its  employees,  customers  and  others  transacting
         business with the Business;

              (iii) not  incur  any  material  obligations  or
         liabilities,  absolute or  contingent,  with  respect to the

                                      -33-

<PAGE>


         Business, except in the  ordinary  course of the  Business  consistent
         with past practice;

              (iv) not enter into any agreement or contract which is material to
         the business, operations or financial condition of the Business, except
         in the ordinary course of the Business consistent with past practice;

              (v)   not encumber or pledge or otherwise  dispose of any of the
         Assets, except in the ordinary course of the Business consistent with
         past practice;

              (vi) not take any action which would cause the representations and
         warranties  made by Seller  herein not to be true and  correct,  in all
         material respects, as of the Closing; and

              (vii) not enter into any agreement or contract  which will require
         an  expenditure  by Buyer  after the  Closing in excess of  Twenty-Five
         Thousand  Dollars  ($25,000) or will  obligate  Buyer for a time period
         greater than six (6) months after the Closing.

     (b) Transfer Taxes.  Buyer and Seller shall each be responsible for and pay
         --------------
one-half of all applicable  sales and transfer taxes  (including  taxes, if any,
imposed  upon  the  transfer  of  personal  property)  and  filing,   recording,
registration   and  other  taxes  and  fees  payable  in  connection   with  the
transactions contemplated by this Agreement.

     (c) Further  Assurances.  From  time  to  time  after  the
         -------------------
Closing  at  Buyer's  request  and  without further  consideration,

                                      -34-

<PAGE>


Seller  shall  execute and deliver or cause to be executed  and  delivered  such
other and further instruments of conveyance,  assignment and transfer,  and take
or cause to be taken such other action, including, without limitation, providing
access to  employees  of Seller as Buyer  may  reasonably  request  for the more
effective  conveyance  and transfer of the Assets to Buyer,  including,  without
limitation,  the recordation,  registration and maintenance of such Assets. From
time to time  after  the  Closing,  at  Seller's  request  and  without  further
consideration, Buyer will execute and deliver such other and further instruments
of assumption  and take such other action as Seller may  reasonably  request for
the more effective assumption by Buyer of the Assumed Liabilities.

     (d) Post-Closing Access; Preservation of Records.
         --------------------------------------------

              (i) From and after the  Closing,  Buyer  shall make or cause to be
         made  available  to Seller  and its  agents  and  employees  all books,
         records and documents of Buyer and its  subsidiaries and its affiliates
         relating to the Assets or the  operation of the  Business  prior to the
         Closing Date (and the assistance of Buyer's and its  subsidiaries'  and
         its  affiliates'  employees  responsible  for such  books,  records and
         documents) during regular business hours as may be reasonably necessary
         for (A) preparing tax returns and financial  statements  and responding
         to tax audits covering  operations and  transactions at or prior to the
         Closing Date, (B) investigating, settling, preparing for the defense or

                                      -35-

<PAGE>


         prosecution  of,  defending  or  prosecuting  any legal  action,  suit,
         investigation or other proceeding pending, threatened or anticipated by
         or against Seller or any of its  subsidiaries  or its affiliates or any
         of their  properties,  officers,  directors or employees  (or for which
         Seller  or  any  of  its   subsidiaries   or  its  affiliates  has  any
         obligations)  before any court,  arbitrator,  governmental  department,
         commission, board, bureau or agency, domestic or foreign, (C) preparing
         reports to stockholders and Governmental  Authorities or (D) such other
         purposes for which access to such  documents is  reasonably  necessary;
         provided,  however, that access to such books,  records,  documents and
         employees shall not unreasonably  interfere with the normal  operations
         of  Buyer,  its  subsidiaries  and its  affiliates  and the  reasonable
         out-of-pocket  expenses of Buyer incurred in connection therewith shall
         be paid by Seller.  Buyer shall  maintain  and preserve all such books,
         records  and other  documents  for the  greater  of (x) seven (7) years
         after the Closing Date or (y) any  applicable  statutory or  regulatory
         retention  period,  as the same may be  extended.  In the  event  Buyer
         wishes to destroy such books, records and documents after that time, it
         shall first give ninety (90) days' prior  written  notice to Seller and
         Seller  shall have the right at its option to take  possession  of such
         books,  records and  documents  provided  that it does so no later than
         sixty (60) days after the end of such 90-day period.

                                      -36-

<PAGE>



              (ii) From and after the Closing,  Seller shall make or cause to be
         made available to Buyer and its agents and employees all books, records
         and  documents  of  Seller  relating  to the  Business  during  regular
         business  hours  for  the  same  or  similar  purposes,  to the  extent
         applicable,  as set forth in Section 8(d)(i) above; provided,  however,
         that access to such books, records and documents shall not unreasonably
         interfere  with the  normal  operations  of Seller  and the  reasonable
         out-of-pocket expenses of Seller incurred in connection therewith shall
         be paid by Buyer.  Seller  shall  maintain and preserve all such books,
         records  and other  documents  for the  greater  of (A) seven (7) years
         after the Closing Date or (B) any  applicable  statutory or  regulatory
         retention  period,  as the same may be  extended.  In the event  Seller
         wishes to destroy such books, records and documents after that time, it
         shall first give ninety  (90) days' prior  written  notice to Buyer and
         Buyer  shall  have the right at its option to take  possession  of such
         books,  records and  documents  provided  that it does so no later than
         sixty (60) days after the end of such 90-day period.

               (iii)  Each of  Seller  and  Buyer  agrees  that all  information
         provided to it pursuant to this  Section  8(d) shall be treated by such
         party in the same  manner as such  party  treats  its own  confidential
         information.

                                      -37-

<PAGE>



     (e)  Reasonable  Best  Efforts.  Each of  Seller  and  Buyer  shall use its
          -------------------------
reasonable  best  efforts  to  cause to be  fulfilled  the  conditions  to their
respective  obligations  and the  respective  obligations of the other party set
forth in Sections 10 and 11.

     (f) Allocation of Consideration.
         ---------------------------

              (i) The Assumed  Liabilities  shall be allocated among the various
         assets  comprising the Assets  pursuant to Section 1060 of the Internal
         Revenue Code of 1986,  as amended (the "Code") and in  accordance  with
         the  procedures   set  forth  in  Schedule  8(f)  (the   "Consideration
         Allocation").   Seller  and  Buyer  each   hereby   affirms   that  the
         Consideration  Allocation is fair and equitable.  Seller and Buyer each
         agree  that they will  report  and cause to be  reported  all  Federal,
         state,  provincial,  local,  foreign and other Tax  consequences of the
         transactions  contemplated  hereby  in a  manner  consistent  with  the
         Consideration  Allocation and that they will not,  except to the extent
         required by law, take any position inconsistent therewith in connection
         with any return, refund claim, litigation or otherwise regarding Taxes.
         Each party  shall  promptly  notify the other if the  Internal  Revenue
         Service  or any other  taxing  authority  proposes  to  reallocate  the
         Consideration  Allocation.  In the event of a determination (as defined
         in 1313 of the Code) relating to the reallocation of the  Consideration
         Allocation, the parties shall be free to file

                                      -38-

<PAGE>


         amended returns or claims for refund based on such reallocation.

              (ii) For the  purpose of this  Agreement,  "Tax" or "Taxes"  shall
         mean all taxes,  charges,  duties,  fees, levies or other  assessments,
         including,  without limitation,  income, excise, property, sales, value
         added, profits, license,  withholding,  payroll, employment, net worth,
         capital  gains,  transfer,   stamp,  social  security,   environmental,
         occupation and franchise taxes imposed by any  Governmental  Authority,
         and  including  any  interest,  penalties  and  additions  attributable
         thereto.

     (g) Interim Use of Seller's Trademark, Trade Name and Corporate Symbol.
         ------------------------------------------------------------------

              (i)  Following   the  Closing,   none  of  Buyer  or  any  of  its
         subsidiaries or its affiliates (including,  without limitation, Parent)
         shall have any rights to use any  trademarks,  trade  names or logos of
         Seller or any of its subsidiaries or its affiliates not included in the
         Assets,  or any contraction,  abbreviation or simulation  thereof,  and
         will not hold itself out as having any  affiliation  with Seller or its
         subsidiaries  or its  affiliates.  However,  Buyer may utilize  without
         obligation  to pay  royalties  to Seller  the  trademark  or trade name
         "Rockwell",  "Rockwell International",  "Collins" or "Collins Avionics"
         or any thereof in connection  with the category of documents  described
         in clause (ii) constituting  Assets as of the Closing Date,  subject to
         the terms and conditions of this

                                      -39-

<PAGE>


         Section  8(g),  and for a period  not to exceed six months may refer to
         such  trademarks  and  trade  names in a  manner  that  identifies  the
         Business  as  comprising  the  "former  Rockwell  Land   Transportation
         Electronics' Mobile Communications Satellite Service business."

              (ii) All  documents  constituting  Assets as of the  Closing  Date
         within the  following  categories  may be used for the  duration of the
         periods  following the Closing  indicated  below or until the supply is
         exhausted, whichever is the first to occur:

                                                     Maximum Period
                                                     of Permitted
                                                     Use Following
         Category of Documents                       the Closing
         ---------------------                       ---------------

         A.   Stationery                              3 months
         B.   Invoices, purchase orders, debit and
              credit memos and other similar
              documents of a transactional nature     3 months
         C.   Business cards                          1 month
         D.   Other outside forms such as packing
              lists, labels, packing materials and
              cartons, etc.                           3 months
         E.   Forms for internal use only             6 months
         F.   Product literature                      6 months;

         provided, however, that no document within any of the above category A,
         B or F may be used by Buyer for any  purpose  within the stated  period
         unless such document clearly and prominently displays a statement,  the
         form of which is  approved by Seller,  to the effect that the  Business
         was  formerly  owned by Seller and  disclaiming  that  either  Buyer or
         Parent has any apparent or actual authority to act as an

                                      -40-

<PAGE>


         agent of  Seller or otherwise on behalf of Seller in connection with
         the Business  or otherwise.

              (iii) Except (A) as permitted in subsections  (i) and (ii) of this
         Section 8(g), (B) for use in connection with hardware or other products
         or equipment to be provided by Seller as contemplated by this Agreement
         or the  Transition  Agreement,  (C) as may be agreed  to by Seller  and
         NewEast Wireless Technologies,  Inc., and (D) as otherwise contemplated
         by this Agreement or the Transition Agreement,  Buyer shall not use and
         shall cause its  subsidiaries  and its affiliates  (including,  without
         limitation,  Parent) not to use the trademark or trade name "Rockwell",
         "Rockwell  International",  "Collins" or "Collins Avionics" or Seller's
         corporate  symbol or any thereof or any name or mark which includes the
         words  "Rockwell",   "Rockwell  International",   "Collins",   "Collins
         Avionics",  any name or mark confusingly similar thereto or any special
         script, type font, form, style, logo, design,  device or symbol used or
         possessed by Seller or its  subsidiaries  or its  affiliates  before or
         after the Closing which contains the trademark or trade name "Rockwell"
         or "Rockwell International",  "Collins", "Collins Avionics" or any name
         or mark confusingly similar thereto.

     (h)  Performance  by  Buyer  of  Obligations  under  Contracts.
          ---------------------------------------------------------
Except as  expressly  provided to the  contrary in this  Agreement,  Buyer shall
assume as of the Closing Date and shall

                                      -41-

<PAGE>



pay or perform in a timely manner,  and in accordance with their terms,  any and
all obligations under the Contracts.

     (i) Insurance.
         ---------

              (i) Seller shall keep, or cause to be kept, all insurance policies
         set forth on Schedule 8(i), or suitable  replacements  therefor  (which
         may include policies containing terms less or more favorable than those
         set forth on Schedule 8(i)), in full force and effect up to the Closing
         Date.  Buyer  hereby  understands  and agrees  that it shall be Buyer's
         responsibility as of and after the Closing Date to provide for adequate
         insurance for the Business and the Assets.

              (ii) With respect to any loss,  liability or damage  (other than a
         casualty  loss or damage)  with  respect to the Assets  arising  out of
         events  occurring  prior to the Closing Date for which Seller or any of
         its  subsidiaries or its affiliates would be entitled to assert a claim
         for  recovery  under  any  third-party  "occurrence  basis"  policy  of
         insurance  maintained  prior to the  Closing  Date  ("Occurrence  Basis
         Insurance")  in accordance  with the terms  thereof,  at the request of
         Buyer,  Seller will use reasonable  efforts in asserting,  or to assist
         Buyer in asserting,  claims under and, if  recoverable,  collecting any
         proceeds  payable under such Occurrence Basis Insurance with respect to
         such  loss,  liability  or  damage,   provided  that  all  of  Seller's
         out-of-pocket costs and expenses incurred in connection with the

                                      -42-

<PAGE>


         foregoing are promptly reimbursed by Buyer and, provided further,  that
         such claims shall be subject to (and recovery  thereon shall be reduced
         by   the   amount   of)   any   applicable   deductibles,   retentions,
         self-insurance provisions or any payment or reimbursement obligation of
         Seller or any of its subsidiaries or its affiliates in respect thereof.

              (iii) With respect to any casualty  loss or damage with respect to
         the Assets  arising out of events  occurring  prior to the Closing Date
         for which Seller or any of its  subsidiaries or its affiliates would be
         entitled  to assert a claim for  recovery  under any  Occurrence  Basis
         Insurance  in  accordance  with the terms  thereof,  at the  request of
         Buyer,  Seller will use reasonable  efforts in asserting,  or to assist
         Buyer in asserting,  claims under such Occurrence  Basis Insurance with
         respect to such loss; provided that all of Seller's out-of-pocket costs
         and expenses  incurred in  connection  with the  foregoing are promptly
         reimbursed by Buyer and, provided further,  that Seller shall reimburse
         Buyer for the full amount of any  applicable  deductibles,  retentions,
         self-insurance provisions or any payment or reimbursement obligation of
         Seller or any of its subsidiaries or affiliates in respect thereof.

     (j) Cash  Management.
         ----------------

              (i) Seller  will,  and  will  cause  its  subsidiaries
         and  its  affiliates  to,  forward  promptly by

                                      -43-

<PAGE>


         check to Buyer any customer payments in respect of accounts  receivable
         constituting  Assets  received by Seller or any of its  subsidiaries or
         its affiliates after the Closing Date,  whether received in lock boxes,
         via wire  transfer or  otherwise.  (ii) Buyer will,  and will cause its
         subsidiaries and its affiliates (including, without limitation, Parent)
         to,  forward  promptly  by check to Seller  any  customer  payments  in
         respect of accounts receivable constituting Retained Assets received by
         Buyer or any of its subsidiaries or its affiliates (including,  without
         limitation,  Parent) after the Closing Date,  whether  received in lock
         boxes, via wire transfer or otherwise.

     (k) Consents.
         --------

              (i) Seller shall, prior to the Closing, use its reasonable efforts
         (it  being   understood   that  such  efforts  shall  not  include  any
         requirement of Seller or any of its  subsidiaries  or its affiliates to
         expend money or grant any  financial  accommodation  to any third party
         except as and to the extent  provided in this Section 8(k)),  and Buyer
         shall cooperate in all reasonable  respects with Seller,  to obtain the
         consents and waivers  necessary to assign to Buyer the Contracts listed
         on Schedule 8(k).

              (ii) To the  extent  Seller  and  Buyer  agree to  provide  to any
         existing  customer  of  Seller  being  assigned  to  Buyer  one or more
         incentives to induce any such customer to

                                      -44-

<PAGE>


         grant  its  consent  or  waiver  to  assign  its  Contract  to Buyer in
         connection with the transactions  contemplated hereby, Seller and Buyer
         shall each be responsible  and pay one-half (1/2) of the aggregate cost
         of providing any such incentive.

     (l) Inventory.
         ---------

              (i) Seller,  at its sole cost and expense,  shall provide to Buyer
         (A)  four  thousand  (4,000)  new  fully  assembled  multi-mode  mobile
         terminals  (with KDU) and (B) one thousand  (1,000) new fully assembled
         multi-mode mobile terminals (without KDU) (collectively, the "Inventory
         MTs")  bearing the model numbers and  conforming to the  specifications
         set forth on Schedule  8(l).  Each  Inventory MT shall  conform to (and
         where necessary be upgraded by Seller to include,  at its sole cost and
         expense)  the  Upgrade  Obligations  (as  hereinafter  defined).  Buyer
         understands and agrees that all mobile  terminals  included in finished
         goods inventory as of the Closing Date as so upgraded shall  constitute
         Inventory  MTs.   Seller  shall  utilize  only  new  and  not  used  or
         refurbished  parts or components  constituting part of the Closing Date
         Parts  Inventory in  connection  with its  manufacture,  production  or
         upgrade of any Inventory MTs.

              (ii) Seller, at its sole cost and expense,  shall provide to Buyer
         one  thousand  (1000)  fully  assembled   multi-mode  mobile  terminals
         (without KDU) (the "Upgraded Customer Returned Goods") for use by Buyer
         which  shall be upgraded by Seller,  at its sole cost and  expense,  to
         include

                                      -45-

<PAGE>


         the  Upgrade  Obligations.  Buyer  agrees  that  Seller  shall  utilize
         components  relating to customer  returned  goods  ("Customer  Returned
         Goods") to fulfill its obligations under this clause (ii).

              (iii)  Seller and Buyer  shall agree to a delivery  schedule  (the
         "Delivery   Schedule")   substantially   in  accordance  with  Schedule
         8(l)(iii)  for the  Inventory  MTs and the Upgraded  Customer  Returned
         Goods  within  sixty (60) days  following  the Closing  Date.  Prior to
         delivery in  accordance  with the  Delivery  Schedule,  Seller shall be
         obligated to store,  at its sole cost and expense,  all such  Inventory
         MTs and  Upgraded  Customer  Returned  Goods.  At the request of Buyer,
         Seller shall be obligated to store, at Buyer's sole cost and expense as
         set forth in Schedule  8(l)(iii),  any such  Inventory MTs and Upgraded
         Customer  Returned  Goods  from and after the  scheduled  date of their
         delivery in accordance with the Delivery Schedule;  provided,  however,
         Buyer  shall  remove or cause to be removed  all such items at its sole
         cost  and  expense  no later  than  June 30,  1998.  Any such  items so
         retained  by  Seller  after the  scheduled  date of their  delivery  in
         accordance with the Delivery Schedule shall for the purposes of Section
         8(p)(ii)  be deemed to be  delivered  to Buyer in  accordance  with the
         Delivery Schedule.

              (iv) Subject to availability,  each of Buyer and Seller may, at no
         cost  and  expense  to such  party,  utilize  any  used or  refurbished
         components, including those

                                      -56-

<PAGE>


         components relating to Customer Returned Goods returned either prior to
         or following  the Closing  Date (other than those  necessary to provide
         the  Upgraded  Customer  Returned  Goods),  constituting  a part of the
         Closing  Date Parts  Inventory  to the extent  required  to fulfill its
         respective  repair,  warranty  and,  in the  case  of  Seller  upgrade,
         obligations  contained in Section 8(q). Prior to any transfer according
         to the provisions of Section  8(l)(v),  neither party shall be entitled
         to use any part of Closing  Date Parts  Inventory  for any  purpose not
         related to the Business.  Buyer shall have the right to utilize any (i)
         multi-mode terminals in excess of six hundred and fifty (650) terminals
         or (ii)  satellite  only  terminals in excess of four hundred and fifty
         (450)  terminals  for any purpose  relating to the Business  including,
         without  limitation,  for resale or for any use by any  existing or new
         customer  without any  obligation  to reimburse  Seller  therefor.  The
         amount of excess,  if any, of such terminals  shall be determined  each
         time Buyer seeks to use any such terminals for any such purpose.

              (v) Seller shall transfer,  without additional  consideration,  to
         Buyer,  free and clear of any Lien  (other  than  Permitted  Liens) any
         Closing Date Parts  Inventory  remaining after Seller's (A) delivery of
         all Inventory MTs required by Section 8(l)(i) and (B) completion of its
         repair, warranty and upgrade obligations contained in

                                      -47-

<PAGE>


         Section 8(q), and in the case of new components, if any, the completion
         of Seller's  obligations under the Transition  Agreement.  All shipping
         and delivery costs incurred in connection  with any such transfer shall
         be the sole responsibility of Buyer.

     (m) Discounted  Satellite  Usage  Fees.  Unless  otherwise  agreed to by a
         ----------------------------------
customer,  as an  additional  inducement  for Seller to execute and deliver this
Agreement and to consummate the transactions  contemplated  hereby,  Buyer shall
charge  the  customers  under the  Contracts  identified  in  Schedule  8(m) the
discounted satellite usage fees set forth in such Schedule.

     (n) On-Board  Computing.  As soon as  practicable  following  the Closing,
         -------------------
Seller,  at its sole cost and expense,  shall  complete  the on-board  computing
interfaces  for Data Max II (with  COM.)  (which  shall  include  any  necessary
corresponding  upgrades to that  customer's  Exec 2000) for the customer and the
number of such customers' trucks identified in Schedule 8(n), which customer the
parties  acknowledge  has as of the date  hereof  paid  Seller  in full for such
product  upgrade.  As soon as  practicable  following  the Closing,  Seller,  at
customer's  sole cost and  expense,  shall offer and, if  accepted,  deliver and
complete the  on-board  computing  interface  for Data Max II (with COM.) (which
shall include any necessary corresponding upgrades to that customer's Exec 2000)
for each of the customers and their  respective  number of trucks  identified in
Schedule  8(n),  whom the  parties  acknowledge  have as of the date hereof been
offered such

                                      -48-

<PAGE>


product  upgrade by Seller.  Seller  shall be  responsible  for the warranty and
support of the computer interface for Data Max II (with COM.)
products sold to such customers.

     (o) [SECTION INTENTIONALLY LEFT BLANK]


     (p) Upgrade and Warranty Obligations.
         --------------------------------

              (i)   Upgrade Program.  Seller and Buyer shall  undertake an
                    ---------------
         upgrade  program  for a period of up to  eighteen  (18) months from the
         Closing Date for the current software load and other identified  issues
         set forth on  Schedule  8(l)  ("Upgrade  Obligations")  for any  mobile
         terminal  (except for any mobile  terminal in use  pursuant to the CRST
         Agreement) in use by customers of the Business on the Closing Date (the
         "Fielded MTs").  The following entity shall be responsible for the task
         or obligation  identified below with respect to the upgrade program for
         the Fielded MTs, which shall include sole  responsibility for all costs
         and expenses incurred in connection with the completion of such task or
         obligation:

Task/Obligation                                        Responsibility
- ---------------                                        --------------
Removal/Return                                         Customer
Shipping/Installation
Shipping to Customer                                   Buyer

Configuration                                          Buyer

Repair                                                 Seller for Upgrade
                                                       Obligations identified on
                                                       Schedule 8(l), otherwise
                                                       Buyer

                                      -49-

<PAGE>



                   Buyer shall be responsible for any and all costs and expenses
         incurred  in  connection  with the  completion  of the  Removal/Return,
         Shipping/Installation  task or obligation to the extent not paid by any
         customer.

                  Seller shall have no obligation to upgrade any of the Customer
         Returned Goods except those which constitute Upgraded Customer Returned
         Goods as provided in Section 8(l)(ii).

              (ii) Warranty. Seller shall, at its sole cost and expense, warrant
         each Inventory MT in accordance  with the warranty  policy set forth on
         Schedule  8(p) for a period of 12 months  from the date of each  unit's
         delivery to Buyer in accordance with the Delivery  Schedule;  provided,
         however,  Seller's  warranty  obligations  contained  in  this  Section
         8(p)(ii)  shall  terminate  with respect to all the Inventory MTs on or
         before  June 30,  1999  notwithstanding  the  delivery  date  therefor.
         Subject to  Seller's  obligation  to perform  the  upgrade  program for
         Fielded MTs contained in Section 8(p)(i),  and its warranty obligations
         with respect to (A) Inventory MTs contained in Section 8(p)(ii) and (B)
         Manufactured MTs (as defined in the Transition Agreement), Buyer shall,
         at  its  sole  cost  and  expense,   assume  all  warranty  and  repair
         obligations  with  respect  to  any  Fielded  MTs,  Inventory  MTs  and
         Manufactured  MTs,  including,  without  limitation,  all  warranty and
         repair obligations arising under or relating to any Contract.

                                      -50-

<PAGE>



     (q) Non-Compete.
         -----------

              (i) Seller  covenants  that, for a period of three years after the
         Closing Date, neither it nor any entity now or hereafter  controlled by
         Seller will,  directly or indirectly,  enter into or acquire control of
         more than a 5%  interest  in any  business  engaged  in (A) the sale of
         satellite mobile messaging  services for commercial  trucking fleets or
         (B)  except  as  provided  in  this  Agreement  or  in  the  Transition
         Agreement,  the sale of satellite only or multi-mode  mobile  terminals
         for commercial  trucking fleets which are substantially  identical as a
         whole  in  design,  form,  fit and  function  to the  Inventory  MTs or
         Manufactured MTs; provided, however, that if Seller acquires control of
         any business having any operations engaged in such services during such
         three year  period,  it shall  divest  such  operations  as promptly as
         practicable  and in any event not later  than one year  following  such
         acquisition.  The  covenant  contained  in this  clause  (i)  shall not
         preclude  any of the Excluded  Businesses  from  providing  any service
         (including, without limitation, any prior, existing or future satellite
         or other communications  capability or service) to the extent that such
         service  does  not  include  the  sale of  satellite  mobile  messaging
         services for commercial  trucking fleets. For purposes of this Section,
         On Board Computing services are not considered to be services presently
         sold by the Business.

                                      -51-

<PAGE>



              (ii)  Seller  acknowledges  that in the event of its breach of the
         foregoing  covenant,  money  damages  would  be an  inadequate  remedy.
         Accordingly,  without  prejudice  to the  rights  of Buyer to seek such
         damages or other  remedies  available to it, Buyer may seek, and Seller
         acknowledges and covenants that it will not contest the appropriateness
         and  availability  of,  injunctive  or other  equitable  relief  in any
         proceeding which Buyer may bring to enforce the foregoing  covenant not
         to compete on its express and explicit  terms.  No waiver of any breach
         of the  foregoing  covenant  shall be implied from any  forbearance  or
         failure of Buyer to take action thereon.

              (iii)  Seller  and Buyer  agree  that,  if any  provision  of this
         Section 8(q) should be adjudicated to be invalid or unenforceable, such
         provision shall be deemed deleted herefrom with respect,  and only with
         respect,   to  the  operation  of  such  provision  in  the  particular
         jurisdiction in which such  adjudication was made;  provided,  however,
         that to the extent any such provision may be made valid and enforceable
         in such  jurisdiction  by limitations  on the scope of the  activities,
         geographical  area or time period covered,  Seller and Buyer agree that
         such provision instead shall be deemed limited to the extent,  and only
         to the extent,  necessary  to make such  provision  enforceable  to the
         fullest extent  permissible  under the laws and public policies applied
         in such jurisdiction.


                                      -52-

<PAGE>


                                (iv)  The covenants contained in this Section
         8(q)  shall  be  construed  and  enforced  independently  of any  other
         provision  of this  Agreement or any other  understanding  or agreement
         between the parties,  and the existence of any claim or cause of action
         of Seller against  Buyer,  of whatever  nature,  shall not constitute a
         defense to the  enforcement  against Seller of the covenants  contained
         herein.

     (r) Intercompany  and   Intracompany   Accounts.   All  intercompany  and
         -------------------------------------------
intracompany  accounts with respect to the Business  shall be cancelled  without
payment by either Buyer or Seller as of the Closing Date.

     (s) Right of Payment Offset. Buyer shall be entitled to offset,  dollar for
         -----------------------
dollar,  the first Five Hundred and Twenty Seven Thousand Dollars  ($527,000) of
any  amounts  owed to  Seller  pursuant  to the terms of this  Agreement  or the
Transition  Agreement.  Any amount not offset by June 30, 1998 shall promptly be
paid in cash to Buyer.

     (t) Non-Solicitation.  From the date of this Agreement  until the Closing,
         ----------------
Buyer,  Parent and Seller each agree,  and shall use its respective best efforts
to cause its respective affiliates',  officers, directors,  employees and agents
not to,  solicit  or  encourage,  directly  or  indirectly,  in any  manner  any
discussion  with,  or furnish or cause to be furnished any  information  to, any
person other than Seller,  Buyer or Parent in connection  with, or negotiate for
or otherwise pursue, the sale

                                      -53-

<PAGE>


of the Assets or the  Business  or any  material  portion  thereof or the mobile
messaging service business and assets of Buyer, or any material portion thereof,
as the case may be.

     (u) Audited  Financial  Statements.  Seller shall provide Deloitte & Touche
         ------------------------------
LLP access to the books,  work papers,  records and  personnel of Seller and its
affiliates  with  respect to the  Business  in  connection  with,  and shall use
reasonable  best  efforts  to  facilitate,  Deloitte  &  Touche  LLP's  work  in
connection  with its preparation of and delivery to Buyer within sixty (60) days
after the Closing of any financial statements  (including an opinion of Deloitte
& Touche LLP  thereon)  with  respect to the  Business  required by Rule 3-05 of
Regulation  S-X of the Securities  Exchange Act of 1934, as amended,  including,
without  limitation,  (i) the execution of and delivery to Deloitte & Touche LLP
of a  standard  engagement  letter  and  (ii)  the  provision  of any  necessary
management  representation letters to Deloitte & Touche LLP as may be reasonably
requested by Deloitte & Touche LLP in connection  therewith.  Buyer acknowledges
and agrees that Seller is engaging  Deloitte & Touche LLP on behalf of Buyer for
administrative  purposes only in an effort to facilitate the preparation of such
financial  statements  and that Seller has no obligation in connection  with the
delivery  thereof or  otherwise  in  connection  therewith  except to the extent
expressly  set  forth  herein.   Buyer  shall  be  solely  responsible  for  the
preparation  and  delivery  of such  financial  statements,  including,  without
limitation, for all fees and disbursements of Deloitte & Touche

                                      -54-

<PAGE>


LLP and Buyer's independent auditors incurred in connection therewith.

     (v) Novation of Customer  Contracts.  Buyer shall use its  reasonable  best
         -------------------------------
efforts to terminate each Contract in accordance with its terms or to enter into
a novation  agreement with respect to each of the Contracts  listed in Section I
of Schedule  5(f)  (Customer  Contracts)  prior to or at the  expiration  of the
existing  term of each such Contract  whereby  Seller shall be released from its
obligations under each such Contract.

     (w) Grant of Intellectual Property License to Seller. Immediately following
         ------------------------------------------------
the Closing,  Buyer hereby grants  Seller and its  affiliates,  a  nonexclusive,
world-wide  royalty-free,  irrevocable  license under all intellectual  property
rights  transferred  to Buyer  under this  Agreement,  including  patents  later
issuing on patent  applications  or innovation  disclosures to permit Seller and
its affiliates (i) to practice fully such  intellectual  property  rights in any
field of use except such uses which would  violate the  Non-Compete  covenant of
Section  8(r) herein and (ii) to perform its  obligations  under the  Transition
Agreement,  including,  without  limitation,  its  obligations  with  respect to
Manufactured MTs; provided, however, that such license shall not include (x) all
marks and any rights  therein  listed on Schedule  1(a)(viii) to the extent that
such marks have acquired any trademark or service mark status, together with the
goodwill,  if any, of the Business connected with the use of, and symbolized by,
the marks and (y) patents or other Assets covering or

                                      -55-

<PAGE>


constituting the Super C protocol.  Such license shall be non-sublicensable  and
non-transferable  except that it may be  transferred  to a  purchaser  of all or
substantially  all of  the  assets  of  the  business  of  Seller  or any of its
affiliates.   Seller  shall,  and  shall  cause  its  affiliates  to,  hold  all
intellectual  property subject to the license granted hereunder  confidential in
the same  manner as Seller or its  affiliates  treats  its own  confidential  or
proprietary information.

     (x) Sharing of Service Fees.
         -----------------------
              (i) Buyer shall remit to Seller  Twenty-Five  percent (25%) of any
         service fees  received by Buyer  pursuant to the Mobile  Communications
         System Purchase Agreement,  dated October 19, 1995, as amended, between
         Buyer (as  successor-in-interest  to Rockwell) and West Side  Unlimited
         Corp. ("West Side") for the two year period following the Closing Date;

              (ii) Buyer  shall  remit to Seller (A) Nine  Dollars  ($9.00)  per
         mobile terminal per month for which service fees have been received for
         such  month  and (B) an  additional  twenty-five  percent  (25%) of the
         remaining   service  fees  retained  by  Buyer  pursuant  to  the  CRST
         Agreement, as amended by the CRST Novation Agreement;

              (iii) Buyer shall  promptly  remit any amounts  owing  pursuant to
         clauses (i) and (ii) above to Seller quarterly in arrears within thirty
         (30) days  following  the end of each such  quarter.  Each such payment
         shall be

                                      -56-

<PAGE>



         accompanied  by a  certification  of Buyer's chief  financial  officer,
         controller  or  assistant  controller  as to the  amounts  of all  such
         service fees received during the relevant period and the calculation of
         the actual amounts being paid;

              (iv) Buyer shall not reduce the amount of the service fees charged
         for any service to either of the customers described in clauses (i) and
         (ii) above without the prior written consent of Seller; and

              (v) Anything contained herein to the contrary notwithstanding,  in
         the event that West Side properly exercises its satisfaction  guarantee
         on or before December 13, 1996, Buyer's obligation to make any payments
         pursuant to clauses (i) and (ii) above shall  terminate and shall be of
         no further  force and effect and Buyer  shall be entitled to retain any
         service fees received from either customer in total.

9.  Employment Arrangements, Benefits and Pension Plans.
    ---------------------------------------------------

     (a) Employment.  Buyer may offer employment, with at least comparable
         ----------
wages and benefits in the aggregate  (without  consideration to Seller's pension
plans),  commencing  as of the Closing  Date,  to any of the employees of Seller
listed on Schedule 9(a); provided,  however, that nothing contained in this 9(a)
is intended  to confer upon any  employee  listed on Schedule  9(a),  including,
without  limitation,  any such  employee who becomes a Continued  Employee,  any
right to continued employment

                                      -57-

<PAGE>


after evaluation by Buyer or Seller of its respective employment needs after the
Closing Date.  The employees who accept such an offer of employment by Buyer are
herein referred to as "Continued Employees".

     (b) Severance Benefits.
         ------------------

              (i) Seller shall be solely  responsible for and shall pay when due
         all direct and indirect liabilities, claims, losses, damages, costs and
         expenses  in  respect  of any claim of any  employee  to whom Buyer may
         offer  employment  pursuant  to  9(a)  and who  does  not  accept  such
         employment, that such employee's employment has been terminated, either
         voluntarily  or  involuntarily,  in conjunction  with the  transactions
         contemplated  hereby,  including,  without  limitation,  any  claim for
         severance pay, unemployment benefits or any other liabilities,  claims,
         losses, damages, costs and expenses (including interest,  penalties and
         fees of legal counsel),  asserted against,  imposed upon or incurred by
         Buyer or any of its subsidiaries or its affiliates (including,  without
         limitation,  Parent)  or  Seller  or  any of  its  subsidiaries  or its
         affiliates  arising from or relating in any way to such claims (whether
         or not  such  claim  is  based  on  any  severance  policy,  agreement,
         arrangement  or program  which may exist or arise  under any  contract,
         employment agreement or under any Federal, state or local law).

                                      -58-

<PAGE>




              (ii) Buyer shall be solely  responsible for and shall pay when due
         all direct and indirect liabilities, claims, losses, damages, costs and
         expenses in respect of any claim of any  Continued  Employee  that such
         Employee's  employment  has  been  terminated,  either  voluntarily  or
         involuntarily,  at any time after the transactions contemplated hereby,
         including,   without   limitation,   any  claim  for   severance   pay,
         unemployment  benefits  or  any  other  liabilities,   claims,  losses,
         damages, costs and expenses (including interest,  penalties and fees of
         legal counsel),  asserted against, imposed upon or incurred by Buyer or
         any  of  its  subsidiaries  or  its  affiliates   (including,   without
         limitation,  Parent)  or  Seller  or  any of  its  subsidiaries  or its
         affiliates  arising from or relating in any way to such claims (whether
         or not  such  claim  is  based  on  any  severance  policy,  agreement,
         arrangement  or program  which may exist or arise  under any  contract,
         employment agreement or under any Federal, state or local law).

     (c) Employee  Obligations.
         ---------------------

              (i) Except as set forth in Section  9(b) with respect to severance
         arrangements, Seller shall be solely responsible for and shall pay when
         due any liabilities or obligations (including  commissions)  associated
         with the  employment of any employees of Seller engaged in the Business
         arising out of any action through the Closing of any kind, character or
         description, including, without

                                      -59-

<PAGE>


         limitation, Seller's  obligations with respect to employee benefit
         plans,  accrued  vacation/holiday,  bonuses, or otherwise;  and

              (ii) Except as set forth in Section 9(b) with respect to severance
         arrangements,  Buyer shall be solely responsible for and shall pay when
         due any liabilities or obligations (including  commissions)  associated
         with the  employment  of any  employees  of Buyer  (including,  without
         limitation, any Continued Employee) engaged in the Business arising out
         of any action after the Closing of any kind,  character or description,
         including,  without  limitation,  Buyer's  obligations  with respect to
         employee  benefit  plans,   accrued   vacation/holiday,   bonuses,   or
         otherwise.

     (d) Welfare Plans.  Buyer shall grant to each Continued Employee credit for
         -------------
their  service with Seller,  its  subsidiaries  or its  affiliates  prior to the
Closing  Date under  Buyer's  welfare  benefit  plans and shall grant credit for
deductibles for 1996 to the extent reasonably available under any relevant plan.

     (e) Benefit  Plans.  Buyer shall,  to the extent  permitted by the relevant
         --------------
plan,  grant to each  Continued  Employee  credit under  Buyer's  benefit  plans
(including,  any pension,  savings or  retirement  plan to the extent  permitted
under the terms of such plan and consistent with  maintaining  such plan's ERISA
qualification) for purposes of eligibility and vesting (but not benefit accrual)
for all service credited to such Continued

                                      -60-

<PAGE>


Employee  under the terms of Seller's  benefit  plans as of the day prior to the
Closing Date.

     (f) Indemnification.
         ---------------

         (i) Buyer shall be  responsible  for,  and  indemnify,  defend and hold
Seller  and each of its  subsidiaries  and its  affiliates  (including,  without
limitation,  Rockwell)  and each of their  employees,  directors,  officers  and
stockholders  (collectively,  the "Seller Group")  harmless from and against any
and all loss,  liability,  damage or  expense,  including,  without  limitation,
reasonable fees and  disbursements of legal counsel  (collectively,  "Damages"),
based upon, arising out of or otherwise in respect of failure of Buyer to comply
with any provision of this Section 9.

         (ii) Seller shall be responsible  for, and  indemnify,  defend and hold
Buyer  and  each of its  subsidiaries  and its  affiliates  (including,  without
limitation,  Parent)  and  each of  their  employees,  directors,  officers  and
stockholders (collectively, the "Buyer Group") harmless from and against any and
all Damages,  based upon,  arising out of or otherwise in respect of any failure
of Seller to comply with any provision of this Section 9.

10. Conditions Precedent to the Obligation of Buyer.
    -----------------------------------------------

     The  obligation  of  Buyer  to  consummate  the  transactions
contemplated  hereby  shall  be  subject  to the satisfaction, or

<PAGE>


waiver  by Buyer, on or prior to the Closing Date, of each of the following
conditions:

     (a) Representations  and Warranties.  The representations and warranties of
         -------------------------------
Seller set forth in this  Agreement  shall be true and  correct in all  material
respects on and as of the Closing  Date with the same force and effect as though
all such  representations  and  warranties had been made on and as of such date,
except  (i) to the  extent  such  representations  and  warranties  are by their
express  provisions  made as of the date of this  Agreement or another  specific
date and  (ii) for the  effect  of any  activities  or  transactions  which  are
contemplated by this  Agreement,  and there shall have been delivered to Buyer a
certificate  to that  effect,  dated the Closing  Date,  signed by an Officer of
Seller.

     (b) Covenants and Agreements.  Each and all of the covenants and agreements
         ------------------------
of Seller to be performed or complied with prior to the Closing pursuant to this
Agreement  shall have been duly  performed  and  complied  with in all  material
respects  or duly  waived  and  there  shall  have  been  delivered  to  Buyer a
certificate  to that  effect,  dated the Closing  Date,  signed by an Officer of
Seller.

     (c) Opinion of Counsel.  Buyer shall have been  furnished an opinion of the
         ------------------
Associate General Counsel or an Assistant  General Counsel of Seller,  dated the
Closing Date.

     (d) Legal  Proceedings.    No  inquiry,  action  or  proceeding
         ------------------
shall   have   been   instituted   which,  in  the  opinion  of

                                      -62-

<PAGE>


counsel to Buyer,  is  reasonably  likely to result in an adverse  determination
which would have a material  adverse effect on the ability of Buyer or Parent to
consummate  the  transactions  contemplated  by this Agreement or the Transition
Agreement,  or to challenge  the validity of such  transactions  or any material
part  thereof,  or  resulting  in  damages  being  payable by Buyer or Parent on
account or as a result thereof.

     (e) FCC License Modification. The Federal Communications Commission ("FCC")
         ------------------------
shall have consented to the modification of Buyer's temporary authority so as to
permit the utilization by Buyer of up to thirty-three  thousand  (33,000) mobile
terminals in connection with the Business and Seller shall have  surrendered its
temporary  authority to the FCC in  connection  with such  modification  ("Buyer
License Modification").

     (f)  Transition  Agreement.  Seller  shall have  executed  and  delivered a
          ---------------------
transition agreement (the "Transition Agreement") with Buyer.

     (g) Consents Obtained. All consents referred to on Schedule 8(k) shall have
         -----------------
been obtained and shall be in full force and effect.

     (h) Mutual  Release.  Buyer shall have been released  from all  contractual
         ---------------
obligations  to Seller  arising  out of or relating  to the  Satellite  Capacity
Agreement  dated March 30, 1994 by and  between  Buyer and Seller  pursuant to a
release (the "Mutual Release") executed between Buyer and Seller.

                                      -63-

<PAGE>




     (i)  Data Max II (with  COM.)  Distributor  Agreement.  Seller  shall  have
          ------------------------------------------------
executed and delivered a distributor agreement with Buyer.

11. Conditions Precedent to the Obligation of Seller.
    ------------------------------------------------

     The obligation of Seller to consummate the transactions contemplated hereby
shall be subject  to the  satisfaction  or waiver by Seller,  on or prior to the
Closing Date, of each of the following conditions:

     (a) Representations  and Warranties.  The representations and warranties of
         -------------------------------
Buyer set forth in this  Agreement  shall be true and  correct  in all  material
respects on and as of the Closing  Date with the same force and effect as though
all such  representations  and  warranties had been made on and as of such date,
except  (i) to the  extent  such  representations  and  warranties  are by their
express  provisions  made as of the date of this  Agreement or another  specific
date and  (ii) for the  effect  of any  activities  or  transactions  which  are
contemplated by this Agreement,  and there shall have been delivered to Seller a
certificate to that effect, dated the Closing Date, signed by the President or a
Vice President of Buyer.

     (b) Covenants and Agreements.  Each and all of the covenants and agreements
         ------------------------
of Buyer to be performed or complied with prior to the Closing  pursuant to this
Agreement  shall have been duly  performed  and  complied  with in all  material
respects or duly waived and there shall have been delivered to Seller a

                                      -64-

<PAGE>


certificate to that effect, dated the Closing Date, signed by the President or a
Vice President of Buyer.

     (c) Opinion of Counsel.  Seller shall have been furnished an opinion of the
         ------------------
Vice President and General Counsel of Buyer, dated the Closing Date.

     (d) Legal  Proceedings.  No inquiry,  action or proceeding  shall have been
         ------------------
instituted  which, in the opinion of counsel to Seller,  is reasonably likely to
result in an adverse  determination  which would have a Material Adverse Effect,
or to challenge the validity of such  transactions or any material part thereof,
or  resulting  in  damages  being  payable  by Seller on  account or as a result
thereof.

     (e) FCC License  Modification.  The FCC shall have  consented  to the Buyer
         -------------------------
License Modification.

     (f) Transition  Agreement.  Buyer  shall have  executed  and  delivered  a
         ---------------------
Transition Agreement with Seller.

     (g) Mutual  Release.  Buyer shall have  executed and  delivered  the Mutual
         ---------------
Release with Seller.

     (h) H-S-R  Determination.  Within sixty (60) days of the Closing Date,
         --------------------
the Board of  Directors  of Buyer (or the  Executive  Committee  of the Board of
Directors) shall have made a good faith determination that the fair market value
of the Assets within the meaning of, and as determined in accordance  with, Rule
801.10 of the Regulations  promulgated  under the Hart-  Scott-Rodino  Antitrust
Improvements  Act of 1976, as amended,  is not more than Fifteen Million Dollars
($15,000,000), and at the Closing Buyer

                                      -65-

<PAGE>



shall deliver to the Seller a certification of the President or a Vice President
of Buyer to the effect that such timely determination  remains in full force and
effect on the Closing Date.

     (i) Consents Obtained. All consents referred to on Schedule 8(k) shall have
         -----------------
been obtained and shall be in full force and effect.

     (j) Certificate  of  Hughes  Electronics  Corporation.  Buyer  shall  have
         -------------------------------------------------
delivered a Certificate of Hughes Electronics  Corporation in the form agreed to
by the parties.

12. Finder's Fees, Brokers.
    ----------------------

     Seller  represents  and  warrants to Buyer that it has not  authorized  any
person to act as broker,  finder or in any other similar  capacity in connection
with  the  transactions  contemplated  by this  Agreement  and the  negotiations
leading  to it.  Buyer  represents  and  warrants  to  Seller  that  it has  not
authorized any person to act as broker,  finder or in any other similar capacity
in  connection  with the  transactions  contemplated  by this  Agreement and the
negotiations leading to it.

13. Waiver of Compliance with Bulk Transfer Laws.
    --------------------------------------------

     The  parties  hereby  waive  compliance  with  the  provisions  of any bulk
transfer laws which may be applicable to the  transactions  contemplated by this
Agreement, the Transition Agreement and the transactions contemplated hereby and
thereby.  Seller shall indemnify,  defend and hold the Buyer Group harmless from
and against any and all Damages incurred by any member of

                                      -66-

<PAGE>


the Buyer  Group  based upon,  arising  out of or  otherwise  in respect of such
noncompliance.

14. Survival of Representations  and Warranties.
    -------------------------------------------
     Each and every  representation and warranty of Seller or Buyer contained in
this Agreement (other than (i) Seller's representation and warranty with respect
to title to the Assets  contained  in Section  5(e),  (ii)  Seller's and Buyer's
representations  and  warranties  with  respect to corporate  authorization  and
enforceability   of  this  Agreement   contained  in  Sections  5(b)  and  6(b),
respectively, and (iii) Seller's and Buyer's representations and warranties with
respect to finder's  fees and brokers  contained in Section 12), in any Schedule
or in any certificate or instrument  delivered  pursuant hereto or in connection
herewith  shall  survive  the  execution  and  delivery of this  Agreement,  the
consummation of the  transactions  contemplated  hereby and the Closing Date and
shall  continue  in full  force and  effect  until  November  22,  1997 and then
terminate and expire with respect to any theretofore  unasserted  claims arising
out of or  relating  to or  otherwise  in  respect  of any  falsity,  breach  or
inaccuracy  of  such  representations  and  warranties.   Seller's  and  Buyer's
representations  and  warranties  with  respect  to  finder's  fees and  brokers
contained in Section 12 and corporate  authorization and  enforceability of this
Agreement contained in Sections 5(b) and 6(b),  respectively,  or on any related
Schedule  hereto or in any  certificate or document  delivered  pursuant  hereto
shall survive the execution and delivery of this

                                      -67-

<PAGE>


Agreement,  the  consummation of the  transactions  contemplated  hereby and the
Closing  Date  until  all  applicable  statutes  of  limitation  (including  any
extension  thereof) have expired and then expire with respect to any theretofore
unasserted claims arising out of or otherwise in respect of any falsity,  breach
or inaccuracy of such  representations or warranties.  The  representations  and
warranties  with  respect to title  contained  in Section 5(e) or on any related
Schedule  hereto or in any  certificate or document  delivered  pursuant  hereto
shall survive the execution and delivery of this Agreement,  the consummation of
the  transactions   contemplated  hereby  and  the  Closing  Date  without  time
limitation.  This Section 14 shall have no effect upon any other  obligation  of
either Seller or Buyer whether to be performed  before,  on or after the Closing
Date.

15.  Indemnification.
     ---------------

     (a) Indemnification by Seller. Seller shall indemnify,  defend and hold the
         -------------------------
Buyer Group harmless from and against any and all Damages  actually  incurred by
any member of the Buyer Group based upon, arising out of or otherwise in respect
of (i) any falsity,  breach or inaccuracy of any representation or warranty made
by Seller herein or in any  certificate  or other  document  delivered  pursuant
hereto,  (ii) any breach or  violation  of any  covenant or  agreement of Seller
contained  herein or in any  certificate  or other document  delivered  pursuant
hereto or (iii) the Retained Liabilities.

                                      -68-

<PAGE>



     (b)  Indemnification by Buyer.  Buyer shall indemnify,  defend and hold the
          ------------------------
Seller Group harmless from and against any and all Damages actually  incurred by
any member of the Seller  Group  based  upon,  arising  out of or  otherwise  in
respect  of (i) any  falsity,  breach or  inaccuracy  of any  representation  or
warranty made by Buyer herein or in any certificate or other document  delivered
pursuant  hereto,  (ii) any breach or  violation of any covenant or agreement of
Buyer  contained  herein  or in any  certificate  or  other  document  delivered
pursuant  hereto,  (iii) the Assumed  Liabilities and (iv) any claims or demands
of, or any  proceeding by or on behalf of INMARSAT  against Seller or any member
of the Seller Group  regarding  INMARSAT's  alleged  ownership of the Standard C
protocol in connection with the Business,  including,  without  limitation,  any
such  claim,  demand or  proceeding  relating  to the use of  Standard  C in the
Fielded MTs,  the  Inventory  MTs and the  Manufactured  MTs.  Without the prior
written consent of Buyer or Parent,  neither Seller nor any member of the Seller
Group shall communicate with INMARSAT or INMARSAT's  counsel or  representatives
concerning the use by Buyer, any member of the Buyer Group, Seller or any member
of the  Seller  Group of the  Standard  C  protocol  except in the case that any
member of the Seller  Group is  required  (by oral  questions,  interrogatories,
request for information or other documents in legal proceedings, subpoena, civil
investigative  demand or other  similar  process) to  communicate  or  otherwise
disclose any such matter. In the event that Seller or any member of the Seller

                                      -69-

<PAGE>


Group is requested or required (by oral questions, interrogatories,  request for
information  or  other   documents  in  legal   proceedings,   subpoena,   civil
investigative  demand or other similar  process) to so communicate with INMARSAT
or INMARSAT's counsel or representatives, Seller shall provide Buyer with prompt
written  notice of any such  request  or  requirement  so that  Buyer may seek a
protective  order or other  appropriate  remedy and/or waive compliance with the
provisions  of this  restriction.  If, in the absence of a  protective  order or
other  remedy or the  receipt of a waiver by Buyer,  Seller or any member of the
Seller Group is nonetheless, in the written opinion of Seller's counsel, legally
compelled  to  so   communicate   with   INMARSAT  or   INMARSAT's   counsel  or
representatives  or else stand liable for  contempt or suffer  other  censure or
penalty,  Seller or such  member of the  Seller  Group  may,  without  liability
hereunder,  communicate to INMARSAT or INMARSAT's  counsel or representatives to
the extent such counsel advises such communication is legally required.  In such
event,  to the extent  possible,  Seller will cooperate with Buyer to respond to
such requirements in a manner consistent with Buyer's interests,  but subject to
all legal requirements.


     (c) Exclusivity.  Each of Buyer,  Parent and Seller acknowledges and agrees
         -----------
that its sole and  exclusive  remedy  with  respect  to any and all  claims  for
damages  covered by the  indemnification  provisions  in Sections  15(a)(i)  and
15(b)(i),  as the  case  may  be,  shall  be  pursuant  to  the  indemnification
provisions set forth in this Section 15. In furtherance of the

                                      -70-

<PAGE>


foregoing,  each of Buyer,  Parent and Seller
hereby waives, to the fullest extent permitted under applicable law, any and all
rights, claims and causes of action it or any of its respective  subsidiaries or
its  affiliates  may  have  against  the  other  party  or  such  other  party's
subsidiaries  or its affiliates or any other member of the Seller Group or Buyer
Group,  as the case may be,  arising  under or based upon any Federal,  state or
local statute,  law, ordinance,  rule, regulation or common law or at equity but
only to the extent  they  relate to the  matters  described  in the  immediately
preceding sentence.

     (d) Notice of  Circumstance.  Promptly  after  receipt by any member of the
Buyer Group or the Seller  Group of notice of any action,  proceeding,  claim or
potential  claim or  discovery  by any  member of the Buyer  Group or the Seller
Group of any facts (any of which is  hereinafter  individually  referred to as a
"Circumstance"), which could give rise to a right to indemnification pursuant to
any provision of this  Agreement,  such person (the  "Indemnified  Party") shall
give the party who may become  obligated  to provide  indemnification  hereunder
(the  "Indemnifying  Party")  written  notice  describing  the  Circumstance  in
reasonable  detail. If notice of a Circumstance is not given to the Indemnifying
Party within a sufficient  period of time or in sufficient detail to apprise the
Indemnifying  Party of the nature of the  Circumstance  (in each instance taking
into account the facts and circumstances with respect to such Circumstance), the
Indemnifying Party shall not be liable to the Indemnified

                                      -71-

<PAGE>


Party  to  the  extent  that  the  Indemnifying  Party's  position  is  actually
prejudiced as a result thereof.  The Indemnifying Party shall have the right, at
its option,  to compromise or defend, at its own expense and by its own counsel,
any Circumstance  involving the asserted  liability of the Indemnified Party. If
any Indemnifying Party shall undertake to settle,  compromise or defend any such
asserted  liability,  it shall  promptly  notify  the  Indemnified  Party of its
intention to do so, and the Indemnified Party agrees to cooperate fully with the
Indemnifying  Party and its  counsel  in the  settlement  or  compromise  of, or
defense against, any such asserted liability. All costs and expenses incurred in
connection with such cooperation  shall be borne by the  Indemnifying  Party. In
the event that the Indemnifying Party shall so assume such defense, it shall not
compromise or settle any such claim,  action, or suit unless (i) the Indemnified
Party gives its prior written consent,  which shall not be unreasonably withheld
or (ii) the terms of the compromise or settlement of such claim, action, or suit
provide  that  the  Indemnified  Party  shall  have  no  responsibility  for the
discharge of any settlement  amount and impose no other material  obligations or
duties on the Indemnified Party, and the compromise or settlement discharges all
rights  against the  Indemnified  Party with respect to such claim,  action,  or
suit.  In any  event,  the  Indemnified  Party  shall  have the right at its own
expense to participate in the defense of such asserted liability,  provided that
the Indemnifying Party shall have the right to have its own counsel

                                      -72-

<PAGE>


control the defense of the Indemnified Party.  Under no circumstances  shall the
Indemnified  Party settle or compromise any such asserted  liability without the
written consent of the Indemnifying Party.

     (e) Certain Limitations.
         -------------------

              (i) Seller shall not be liable to indemnify  Buyer for any Damages
         based upon,  arising out of, or otherwise in respect of the matters set
         forth in Section  15(a)(i) hereof once the aggregate  amount of Damages
         actually  paid by Seller to the Buyer Group with respect to such claims
         exceeds Two Million Dollars ($2,000,000);  provided,  however, that the
         limitation  contained  in this  clause  shall not apply to any  Damages
         based upon,  arising out of, or  otherwise  in respect of any  falsity,
         breach or  inaccuracy  of Seller's  representation  and  warranty  with
         regard to title to the Assets contained in Section 5(e).

              (ii) Seller shall not be liable to indemnify Buyer for any Damages
         based upon,  arising out of or  otherwise in respect of the matters set
         forth  in  Section  15(a)(i)  hereof,  except  to the  extent  that the
         aggregate  amount of  Damages  exceeds  One  Hundred  Thousand  Dollars
         ($100,000) (the "Threshold Amount");  provided,  however, that once the
         Threshold  Amount has been  exceeded the Seller shall be liable for the
         entire amount of such Damages, including the Threshold Amount.

                                      -73-

<PAGE>



              (iii) The  amount of any  Damages  for  which  indemnification  is
         provided under this Agreement shall be net of any amounts  recovered or
         recoverable  by the  Indemnified  Party from third parties  (including,
         without  limitation,  amounts  recovered or recoverable under insurance
         policies) with respect to such Damages or other  liability.  Seller and
         Buyer, as appropriate, shall, or shall cause each Indemnified Party to,
         use its reasonable best efforts to pursue promptly any claims or rights
         it may have against all third  parties which would reduce the amount of
         Damages for which indemnification is provided under this Agreement.

              (iv) Neither Seller nor Buyer shall have any
obligation  to indemnify  the other or any other  persons  under this  Agreement
against,  or otherwise have any liability  under this Agreement with respect to,
lost profits or consequential damages.

     (f)   Survival  of   Indemnification   Obligations.   The   indemnification
           --------------------------------------------
obligations for all Damages  relating to matters set forth in Sections  15(a)(i)
and 15(b)(i)  hereof shall survive the execution and delivery of this Agreement,
the  consummation of the transactions  contemplated  hereby and the Closing Date
and  continue  in full  force and effect  thereafter  to the extent set forth in
Section 14 hereof and then expire  (other than as set forth in such  Section 14)
with respect thereto. The indemnification obligations for all Damages related to
matters set forth in the other clauses set forth in Sections 15(a) and

                                      -74-

<PAGE>


15(b) hereof shall  survive the execution  and delivery of this  Agreement,  the
consummation of the  transactions  contemplated  hereby and the Closing Date and
continue in full force and effect thereafter without time limitation.

16. Termination; Effect of Termination.
    ----------------------------------

     (a) Termination.  This Agreement may be terminated at any time prior to the
         -----------
Closing:

(i) by mutual  written  consent of
Seller  and  Buyer;

(ii)  by  Buyer  if,  as of the  time of the  Closing,  the
conditions  specified in Section 10 have not been  satisfied  and shall not have
been  waived by Buyer;

(iii) by Seller if, as of the time of the  Closing,  the
conditions  specified in Section 11 have not been  satisfied  and shall not have
been waived by Seller;  or

(iv) by either  party  hereto if the Closing does not
occur on or prior to  December  15,  1996;  provided,  however,  that the  party
seeking termination pursuant to clauses (ii), (iii) and (iv) is not in breach of
its  representations,  warranties,  covenants  or  agreements  contained in this
Agreement.

     (b)  Effect  of  Termination.  In the  event  of the  termination
          -----------------------
of this Agreement  pursuant to Section 16(a),  this  Agreement,  other than with
respect to Sections  7, 12,  17(a) and 17(m),  which  shall  continue in effect,
shall  thereafter  become void and have no effect,  and without any liability on
the part of

                                      -75-

<PAGE>


either party or its  subsidiaries  or its  affiliates or any other member of the
Seller Group or the Buyer Group in respect  thereof,  except that nothing herein
will relieve either party from liability for any breach of this Agreement.

17. Miscellaneous.
    -------------

     (a) Costs Incident to Preparation of Agreement. Seller and Buyer shall each
         ------------------------------------------
pay,  without right of  reimbursement  from the other,  all costs incurred by it
incident to the  preparation,  execution and delivery of this  Agreement and the
performance  of its  obligations  hereunder,  whether  or not  the  transactions
contemplated by this Agreement are consummated,  including,  without limitation,
fees and disbursements of legal counsel, accountants and consultants employed by
the respective  parties hereto in connection with the transactions  contemplated
by this Agreement.

     (b) Parties in  Interest.  This  Agreement  is binding  upon and is for the
         --------------------
benefit of the parties  hereto and their  respective  successors  and  permitted
assigns.  This  Agreement is not made for the benefit of any person  (including,
without limitation,  any Continued Employee),  firm, corporation or other entity
not a party hereto, and no person (including,  without limitation, any Continued
Employee),  firm,  corporation  or other entity other than the parties hereto or
their  respective  successors  and  permitted  assigns shall acquire or have any
right, remedy or claim under or by virtue of this Agreement, except that members
of the Buyer Group and the Seller Group shall be entitled

                                      -76-

<PAGE>


to the  rights to  indemnification  provided  to the Buyer  Group and the Seller
Group, respectively, hereunder.

     (c) Casualty.  Subject to the  provisions of Section 8(i), if, prior to the
         --------
Closing,  any Assets or a portion  thereof are damaged or  destroyed  by fire or
other  casualty,  Buyer  shall not have the  option to cancel and  rescind  this
Agreement but shall be obligated to  consummate  the  transactions  contemplated
hereby without adjustment in the closing  consideration  except that Buyer shall
be  entitled to all of Seller's  right,  title and  interest in and to any award
from any insurance proceeds with respect thereto, provided,  however, that Buyer
will have the option to cancel and  rescind  this  Agreement  if such  damage or
destruction has had or could  reasonably be expected to have a Material  Adverse
Effect.

     (d)  Assignment;  Successors  and Assigns.  Neither  Seller nor Buyer shall
          ------------------------------------
convey, assign or otherwise transfer any of its rights or obligations under this
Agreement  without the express written consent of the other party hereto,  which
consent shall not be unreasonably  withheld;  provided,  however, that Buyer may
freely assign any and all of its rights,  obligations and interests hereunder to
a wholly-owned  subsidiary of Parent, provided that Parent shall not be released
from its obligations under this Agreement,  including,  without limitation,  its
guarantee obligations set forth in Section 17(r).

     (e) Notices.    All  notices or other  communications  required
         -------
or  permitted  to  be  given  hereunder  shall  be in  writing

                                      -77-

<PAGE>


and  shall  be  delivered  by hand,  telecopied  or sent,  postage  prepaid,  by
registered,  certified or express mail or reputable  overnight  courier  service
(and  shall be deemed  given when so  delivered  by hand or  telecopied,  or, if
mailed,  three days after  mailing (one business day in the case of express mail
or overnight courier service)) addressed as follows:


                  If to Seller:

                  Rockwell International Corporation
                  2201 Seal Beach Boulevard
                  Seal Beach, California 90740-8250
                  Attention: William J. Calise, Jr., Esq.
                             Senior Vice President,
                             General Counsel and Secretary

                  with a copy to:

                  Rockwell International Corporation
                  Collins Commercial Electronics
                  400 Collins Road NE
                  Cedar Rapids, IA 52489
                  Attention: Thomas G. Manor, Esq.
                            Assistant General Counsel

                  and

                  Battle Fowler LLP
                  Park Avenue Tower
                  75 East 55th Street
                  New York, New York  10022
                  Attention: David E. Eagan, Esq.

                  If to Buyer or Parent:

                  American Mobile Satellite Corporation
                  and AMSC Subsidiary Corporation
                  10802 Parkridge Blvd.
                  Reston, VA  20191-5416
                  Attention: Randy S. Segal, Esq.
                             Vice President and General Counsel

                                      -78-

<PAGE>



                  with a copy to:

                  Arnold & Porter
                  Thurman Arnold Building
                  555 Twelfth Street, N.W.
                  Washington, D.C.  20004-1202
                  Attention: Robert B. Ott, Esq.

or in any  case to such  other  address  or  addresses  as  hereafter  shall  be
furnished  as provided in this  Section  17(e) by any party  hereto to the other
party hereto.

     (f)  Waiver;  Remedies.  No delay on the part of either  Buyer or Seller in
          -----------------
exercising  any right,  power or privilege  hereunder  shall operate as a waiver
thereof,  nor  shall any  waiver  on the part of  either  Buyer or Seller of any
right,  power or  privilege  hereunder  operate as a waiver of any other  right,
power or privilege  hereunder,  nor shall any single or partial  exercise of any
right,  power or  privilege  hereunder  preclude  any other or further  exercise
thereof or the exercise of any other right, power or privilege hereunder. Unless
otherwise  provided,  the rights and remedies herein provided are cumulative and
are not  exclusive  of any  rights or  remedies  which the  parties  hereto  may
otherwise have at law or in equity.

     (g) Entire  Agreement.  This  Agreement,  the Transition  Agreement and the
         -----------------
Confidentiality Agreement constitute the entire agreement among the parties with
respect  to the  subject  matter  hereof  and  this  Agreement,  the  Transition
Agreement and such  Confidentiality  Agreement supersede all prior agreements or
understandings of the parties relating thereto, including,

                                      -79-

<PAGE>



without  limitation,  the non-binding  Letter of Intent dated October 1, 1996 by
and between Parent and Seller.

     (h)  Amendment.  This  Agreement may be modified or amended only by written
          ---------
agreement of the parties hereto.

     (i) Counterparts.  This  Agreement  may  be  executed  in  any  number  of
         ------------
counterparts,  each of  which  shall  be  deemed  an  original  but all of which
together shall constitute a single instrument.

     (j) Governing  Law.  This  Agreement  shall be governed  and  construed in
         --------------
accordance  with the laws of the State of New York  applicable to contracts made
and to be performed entirely within such State,  without regard to the conflicts
of law principles of such State.

     (k) Disclosure Schedule.  All Schedules referred to herein are contained in
         -------------------
the Disclosure Schedule to be delivered at Closing (the "Disclosure  Schedule").
Matters  disclosed by Seller to Buyer  pursuant to any Section of this Agreement
shall be deemed to be disclosed  with respect to all Sections of this  Agreement
to the extent this Agreement requires such disclosure.

     (l) Captions,  Currency.  All section titles or captions  contained
         -------------------
in this Agreement or in any item contained in the Disclosure  Schedule  referred
to herein, and the Table of Contents to this Agreement, are for convenience only
and shall not be  deemed a part of this  Agreement  or  affect  the  meaning  or
interpretation  of this Agreement.  Unless otherwise  specified,  all references
herein to numbered sections are to Sections of

                                      -80-

<PAGE>


this Agreement and all references herein to Schedules are to Schedules contained
in the Disclosure Schedule. Unless otherwise specified, all references contained
in this Agreement or in any Schedule referred to herein, or in any instrument or
document delivered pursuant hereto, to dollars shall mean United States Dollars.

     (m) Publicity. No press release or announcement concerning the transactions
         ---------
contemplated  hereby shall be issued by any party  without the prior  consent of
the other parties, except as such release or announcement may be, in the opinion
of the disclosing  party's legal  counsel,  required by law, rule or regulation,
including the rules of a stock exchange or automated  trading market on which or
in which such disclosing  party's securities are traded, in which case the party
required  to make the  release or  announcement  shall  allow the other  parties
reasonable  time to comment on such release or  announcement  in advance of such
issuance.


     (n) No  Representations  or  Warranties.  Buyer  acknowledges  that none of
         -----------------------------------
Seller or any of its subsidiaries or its affiliates or any other person has made
any  representation  or warranty,  expressed  or implied,  as to the accuracy or
completeness of any information  regarding Seller,  the Business,  the Assets or
the Assumed  Liabilities  not included in this Agreement or the  Schedules,  and
none of Seller,  any of its  subsidiaries  or its affiliates or any other person
will have or be subject to any liability to Buyer, any of its subsidiaries or

                                      -81-

<PAGE>


its affiliates or any other person  resulting from the  distribution to Buyer or
Buyer's use of, any such information. Buyer further acknowledges that, except as
expressly  set  forth  in  this  Agreement  or the  Schedules  contained  in the
Disclosure  Schedule,  there are no  representations  or warranties of any kind,
expressed or implied,  with respect to Seller,  the Business,  the Assets or the
Assumed Liabilities.

     (o) Severability.  If any provision of this Agreement or the application of
         ------------
any such provision to any person or circumstance shall be held invalid,  illegal
or  unenforceable  in any  respect by a court of  competent  jurisdiction,  such
invalidity,  illegality or unenforceability shall not affect any other provision
hereof.

     (p) Dispute Resolution Procedures.  All disputes relating to or arising out
         -----------------------------
of any provision of the Agreement  shall be resolved  pursuant to procedures set
forth in Annex I to this Agreement,  the terms of which are incorporated  herein
by reference.

     (q)  Definition  of  "Knowledge".  For  the  purposes  of  this  Agreement,
          ---------------------------
"knowledge"  or "aware of" or a similar phrase with respect to Seller shall mean
the  actual  knowledge  of the  persons  listed  on  Schedule  17(q)  ("Seller's
Representatives") and not any constructive or imputed knowledge of Seller or any
of its  subsidiaries  or its  affiliates  or any of their  directors,  officers,
employees or agents.

                                      -82-

<PAGE>



     (r) Guarantee of Buyer's  Performance.  As an  additional  inducement  for
         ---------------------------------
Seller to execute and deliver this Agreement and to consummate the  transactions
contemplated  hereby  Parent,  for  itself  and its  successors-in-interest  and
assigns,  hereby guarantees the full and faithful performance and observation by
Buyer  under  this  Agreement  or  the  Transition  Agreement,  of  all  of  the
representations,  warranties,  covenants,  conditions  and  agreements  in  this
Agreement or the Transition Agreement,  provided to be performed and observed by
Buyer  without   requiring   any  notice  of   nonpayment,   nonperformance   or
non-observance or proof of notice or demand whereby to charge Parent

















                                      -83-

<PAGE>





therefor,  all of which Parent hereby expressly waives.  Parent expressly agrees
that the Buyer may, without notice to the  undersigned,  modify the Agreement or
the Transition  Agreement,  and grant  extensions  and  concessions to Seller in
respect thereof without in any manner affecting the liability of the undersigned
hereunder. This Guarantee shall remain in effect notwithstanding any bankruptcy,
reorganization  or  insolvency  of Parent,  Buyer or any  successor  or assignee
thereof, or any disaffirmance or abandonment by a trustee thereof. Parent hereby
waives notice of acceptance of this Guarantee.  Parent shall have any defense to
the performance of this Guarantee that would be available to Buyer in connection
with its obligations under this Agreement and the Transition Agreement.

     IN WITNESS  WHEREOF,  the parties  hereto have caused this  Agreement to be
executed as of the date first above written.

                             ROCKWELL COLLINS, INC.


                            By:     /s/ L.A. Erickson
                                    Name:  L.A. Erickson
                                    Title: Assistant Treasurer

                            AMERICAN MOBILE SATELLITE CORPORATION


                            By:     /s/ Gary M. Parsons
                                    Name:  Gary M. Parsons
                                    Title: President and Chief Executive Officer

                           AMSC SUBSIDIARY CORPORATION


                            By:     /s/ Gary M. Parsons
                                    Name:  Gary M. Parsons
                                    Title: President and Chief Executive Officer



<PAGE>


                                     ANNEX I



                          DISPUTE RESOLUTION PROCEDURES
                          -----------------------------

                     Negotiation -- Mediation -- Arbitration


     This Annex I to the Asset Sale Agreement dated as of November 22, 1996 (the
"Agreement")  by and between  ROCKWELL  COLLINS,  INC.,  a Delaware  corporation
("Seller"),  and AMERICAN MOBILE SATELLITE  CORPORATION,  a Delaware corporation
("Parent") and AMSC Subsidiary  Corporation,  a Delaware  corporation  ("Buyer")
sets forth the procedures for resolving  disputes  relating to or arising out of
any provision of the Agreement, as prescribed pursuant to Section 17(p) thereof.
This Annex  forms a part of the  Agreement,  and all terms used  herein that are
defined in the Agreement  shall have the  respective  meanings  ascribed to them
therein  unless  otherwise  defined  herein,  and this  Annex is  subject to the
provisions of the Agreement.

     (i) In the event of any dispute  between  Buyer and Seller or any member of
the Buyer Group or the Seller Group  relating to or arising out of any provision
of  the   Agreement,   each  party  shall   promptly   designate   one  or  more
representatives  and the  respective  representatives  of the parties shall meet
promptly in an effort to resolve the dispute extrajudicially.

     (ii) If the  dispute  is not  resolved  as a result  of such  meeting,  
the dispute  shall be  referred  to a member of the  respective  senior  
managements (which  shall  mean  President  or any Vice  President  of  Seller  
who shall be empowered to act on behalf of Seller and the President or 
any Vice  President of Buyer who shall be empowered to act on behalf

<PAGE>


of Buyer) within ten days after the meeting prescribed in paragraph (i).

     (iii) A member of the senior management of each party shall meet to attempt
to resolve  the  dispute  within  thirty  (30) days after the  dispute  has been
referred to them as prescribed in paragraph (ii).

     (iv) Prior to the meeting of the members of the senior  managements  of the
parties,  the parties  shall  exchange  written  summaries of the issues and the
underlying  evidence  relating to the dispute.  The disputing party shall submit
its written summary to the other party not less than twenty (20) days before the
meeting of the senior  management.  This submission shall set forth the basis of
the dispute  and  identify  the member of its senior  management  authorized  to
resolve the dispute on its behalf.  Within ten days thereafter,  the other party
shall submit its written summary to the disputing  party.  This submission shall
respond to the matters raised in the written  summary  provided by the disputing
party and  identify  the  member of the  senior  management  of the other  party
authorized to resolve the dispute on its behalf.

     (v) If the dispute is not resolved by the senior  management of each party,
the parties  shall appoint a neutral  advisor who shall,  within sixty (60) days
after his appointment, submit to the parties a non-binding written opinion which

                                      -2-

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addresses the merits of each party's position and assesses which party is likely
to  prevail  at a trial  on the  merits,  setting  forth  findings  of fact  and
conclusions of law in support thereof.

     (vi) The parties shall  exchange  names of potential  neutral  advisors and
select from this pool a mutually  acceptable  candidate.  If the parties  cannot
agree on the selection of a neutral  advisor,  the Center for Public  Resources,
New York,  New York U.S.A.  ("CPR") or its designee (or if the CPR shall decline
to do so, any judge or retired  judge of the federal  courts in the State of New
York) shall select a neutral  advisor  from among the Judicial  Panelists of the
CPR Legal  Program and the retired  judges of the federal or state courts in the
State of New York.

     (vii) The parties  shall enter into an agreement  with the neutral  advisor
prohibiting  any ex parte contacts with the neutral advisor without the explicit
consent  of the other  party and  requiring  the  neutral  advisor  to treat any
information  conveyed to him as confidential  and prohibit his disclosure of any
confidential or trade secret information. Such agreement shall also provide that
the neutral  advisor will be  disqualified  as a trial  witness,  consultant  or
expert for any party, and that his advisory opinion of the likely outcome of any
litigation of the dispute is inadmissible for any purpose.

     (viii) Ten days after the neutral advisor has been  designated,  each party
shall submit to the neutral  advisor,  as well as to the other party,  a concise
written statement  summarizing the issues and underlying evidence supporting its
position.

                                      -3-

<PAGE>



     (ix) The neutral advisor may in his sole  discretion  conduct a mini-trial,
under such rules of procedure as he shall  prescribe  and as shall be reasonably
acceptable to the parties,  at which the parties shall present their  respective
positions on the  disputes.  If the neutral  advisor  wishes to consult with the
parties on any issue relating to the dispute prior to the  mini-trial,  he shall
outline his general areas of inquiry and, on agreement by both  parties,  he may
submit written  questions  jointly to the parties.  The parties shall respond to
these  questions in writing and shall provide each other with a copy of any such
response.

     (x) The fees and  expenses  of the  neutral  advisor  shall be  apportioned
equally between the parties to the dispute.

     (xi) Ten days after the neutral  advisor issues his opinion to the parties,
members of the senior  management  shall meet again in an attempt to resolve the
dispute.

     (xii)  If the  good  faith  attempts  to  resolve  the  dispute  stated  in
paragraphs (i), (iii) and (xi) are  unsuccessful,  the parties shall submit such
dispute to arbitration.  Such arbitration  shall be conducted in accordance with
the  rules  of the  Center  for  Public  Resources  Rules  for  Non-Administered
Arbitration of Business Disputes by three arbitrators,  of whom each party shall
appoint one. Any  arbitrator not appointed by a party shall be selected from the
CPR Panels of Distinguished  Neutrals.  The arbitration shall be governed by the
United States Arbitration Act, 9 U.S.C.,

                                      -4-

<PAGE>


Sections 1-16, and judgment upon the award  rendered by the  Arbitrators  may be
entered by any court having jurisdiction  thereof.  The place of the arbitration
shall be New York, New York. The  arbitrators are not empowered to award damages
in excess of actual damages,  including punitive damages.  The arbitrators shall
make written  findings of fact and  conclusions  of law, and the decision of the
arbitrators shall be final.

     (xiii) Each party shall pay its own expenses of arbitration and the expense
of the arbitrators shall be equally shared;  provided,  however,  that if in the
opinion of the arbitrators any claim for indemnification  under the Agreement or
any defense in objection thereto was  unreasonable,  the arbitrators may assess,
as part of their award, all or any part of the arbitration  expenses  (including
reasonable  attorneys'  fees and  disbursements)  of the other  party and of the
arbitrators  against  the party  raising  such  unreasonable  claim,  defense or
objection.

     (xiv) All  deadlines  specified  in this Annex I may be  extended by mutual
agreement.



                                      -5-

<PAGE>




Reference:        96-#25

FOR IMMEDIATE RELEASE

       AMSC INCREASES ITS COMMITMENT TO MOBILE MESSAGING WITH ACQUISITION
                 OF ROCKWELL'S MULTI-MODE COMMUNICATIONS SYSTEM

CEDAR RAPIDS,  IA,  November 25, 1996-- Rockwell  International  Corporation and
Reston,  VA-based American Mobile Satellite  Corporation  (AMSC) (Nasdaq:  SKYC)
today  announced  AMSC's  acquisition  of Rockwell's  Multi-Mode  Communications
System,  a mobile  messaging and global  positioning and monitoring  service for
commercial  trucking fleets. The move underscores AMSC's commitment to providing
mobile data communications services.
          Rockwell's  Multi-Mode  Communications  System,  together  with AMSC's
Mobile Messaging  Service(TM) (MMS) and SKYCELL(R) Plus nationwide digital voice
dispatch,  provides  innovative  communications  services to the  transportation
industry. The companies anticipate a seamless transition for Rockwell customers.
         "This is a real win-win opportunity," said Gary Parsons, AMSC president
and CEO. "AMSC doubles its penetration of the  transportation  industry segment,
while  Rockwell's  customers  benefit  from an enhanced  and  versatile  line of
products and services."
         Jack Schang,  vice president and general  manager for  Rockwell's  Land
Transportation  Electronics Business, added his support saying, "as the provider
of our satellite  service,  AMSC is uniquely  positioned to deliver even greater
value to our Multi-Mode  customers."  Schang  continued,  "AMSC is an innovative
company  that will be able to  provide  a high  degree  of  satisfaction  to our
customers, some of the most forward-looking fleets in North America."
         "We're pleased with this arrangement,"  added Braxton Vick, senior vice
president of corporate planning and development for Southeastern  Freight Lines,
a customer that relies heavily on the  Multi-Mode Communications  System.  "AMSC
has  improved its  technical  expertise  in onboard  communications  through the
Rockwell  acquisition.  We now have access to superior multi-mode experience and
satellite technology in one supplier."
         The  Rockwell   Multi-Mode   Communications   System  uses   integrated
satellite- and land-based  technologies  to provide  commercial  trucking fleets
with two-way data communications and global vehicle location services, no matter
where  their  vehicles  are  traveling  throughout  North  America.   Land-based
technology  ensures  communications  while vehicles  travel in urban areas where
tall  buildings  may  block  the  line  of  sight  to the  satellite;  satellite
technology  ensures the  availability  of  communications  while vehicles travel
through desert, mountain or prairie, where land-based coverage is non-existent.


<PAGE>


         In Canada, New East Wireless Telecommunications will continue to market
the Rockwell Multi-Mode System.
         Rockwell's industrial automation,  semiconductor systems,  avionics and
communications  systems and automotive  component systems businesses are leading
providers of technology solutions to customers worldwide. The company has annual
revenues in excess of $10 billion and employs more than 56,000 people.
         American  Mobile  Satellite  Corporation  offers a full range of mobile
communications  including  telephone,   digital  broadcast  dispatch,  data  and
position  reporting  services.  The AMSC-1 satellite  provides coverage over the
continental United States,  Alaska, Hawaii, Puerto Rico, the Virgin Islands, and
hundreds of miles of U.S.  coastal waters.  AMSC's  shareholders  include Hughes
Communications, Inc., Singapore Telecom, and AT&T Wireless Services.

Contacts

Bob Woods                                  Renate Brown Neely
Rockwell Land Transportation Electronics   American Mobile Satellite Corporation
319/295-5910                               703/716-6558
[email protected]                 [email protected]


                                       ###

Factors  that could cause  forward-looking  statements  in this news  release to
differ materially from actual results are discussed in American Mobile Satellite
Corporation's S-1 registration  statement;  Form 10K for the year ended December
31, 1995;  Form 10Q for the quarter ended  September 30, 1996 and other periodic
filings AMSC has made with the Securities and Exchange Commission. Copies of the
filings are available upon request from AMSC's investor relations department.




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