GEOTEK COMMUNICATIONS INC
8-K/A, 1998-01-21
RADIO & TV BROADCASTING & COMMUNICATIONS EQUIPMENT
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<PAGE>


                          SECURITIES AND EXCHANGE COMMISSION
                               Washington, D.C.  20549


                                      FORM 8-K/A


                                    CURRENT REPORT


                  Pursuant to Section 13 or 15(d) of THE SECURITIES
                                 EXCHANGE ACT OF 1934


     Date of Report (Date of earliest event reported)   December 18, 1997
                                                       ---------------------



                           GEOTEK COMMUNICATIONS, INC.
- -------------------------------------------------------------------------------

                  (Exact name of registrant as specified in charter)



   Delaware                       0-17581                     22-2358635 
- -------------------------  --------------------------  ------------------------
(State or other juris-     (Commission File Number)      (IRS Employer Identi-
 diction of incorporation)                               fication No.)


102 Chestnut Ridge Road, Montvale, New Jersey                           07645
- ---------------------------------------------                        ----------
(Address of principle executive offices)                             (Zip Code)


Registrant's telephone number, including area code    201-930-9305   
                                                    -----------------


                                    N/A 
      ---------------------------------------------------------------------
         (Former name or former address, if changed since last report.)


<PAGE>


Item 5.        Other Events

     On December 19, 1997, Geotek Communications, Inc. ("Geotek" or the
"Registrant") announced that it had entered into an Agreement for the Sale and
Purchase of Shares (the "NB3 Agreement"), dated as of December 18, 1997, by and
among Geotek, Geotek GmbH Holding Corporation, a Delaware corporation and a
wholly-owned subsidiary of Geotek ("Geotek Holding"), Telesystem International
Wireless Inc., a Canadian corporation ("Telesystem") and TIWC Holding (UK)
Limited, an entity incorporated under the laws of England and Wales ("TIWC"),
pursuant to which Geotek Holding will sell all of the issued and outstanding
shares of capital stock of National Band Three Limited ("NB3") to TIWC in
exchange for the payment of eighty million U.S. dollars (US$80,000,000), which
dollar amount is subject to increase or decrease based on the amount of net loan
repayments prior to closing by NB3 to Geotek Holding (the "NB3 Sale").  Five
percent of the US$80,000,000 sale price will be held in escrow to satisfy Geotek
Holding's indemnity obligations, if any, under the NB3 Agreement.  The funds in
the escrow account will be released to Geotek Holdings six months after the
closing of the NB3 Sale.

     Consummation of the NB3 Sale is subject to the satisfaction of certain
conditions, including, but not limited to (i) the receipt of regulatory
approvals (a) with respect to the deemed transfer of the radio spectrum to TIWC
pursuant to the NB3 Sale and (b) with respect to the quantity of  radio spectrum
which TIWC will own upon consummation of the NB3 Sale and (ii) that there be no
material adverse change to NB3.  

     The foregoing discussion of the terms of the NB3 Sale and the NB3 Agreement
does not purport to be complete and is qualified in its entirety by reference to
the NB3 Agreement itself, a copy of which is attached hereto as Exhibit 10.1.

     In addition, on December 19, 1997, Geotek announced that it had entered
into a Purchase Agreement (the "Terrafon Agreement"), dated as of December 18,
1997, by and among Geotek, Geotek Communications GmbH, a German corporation and
an indirect wholly-owned subsidiary of Geotek ("Geotek GmbH"), o.tel.o
communications GmbH & Co., a German corporation and RegioKom Deutschland
Gesellschaft fur Bundelfunkdienste GmbH, a German corporation affiliated with
Telesystem ("RegioKom"), pursuant to which Geotek GmbH agreed to sell its 50%
limited partner interest in Terrafon Bundelfunk GmbH & Co. KG ("Terrafon KG")
and all of its shares of capital stock of Terrafon Bundelfunk Geschaftsfuhrungs
Gesellschaft mbH ("Terrafon GmbH"), which shares represent 50% of all of the
issued and outstanding shares of capital stock of Terrafon GmbH, to RegioKom in
exchange for the payment of DM 7,000,000 (approximately US$5,000,000) of which
payment DM 500,000 shall be held in escrow to satisfy Geotek GmbH's indemnity
obligations, if any, under the Terrafon Agreement (the "Terrafon Sale").  The
funds in the 


                                       2


<PAGE>


escrow account will be released to Geotek GmbH within fifteen months after the
closing of the Terrafon Sale.

     Consummation of the Terrafon Sale is subject to the satisfaction of certain
conditions, including, but not limited to the receipt of certain regulatory
approvals. 

     The foregoing discussion of the terms of the Terrafon Sale and the Terrafon
Agreement does not purport to be complete and is qualified in its entirety by
reference to the Terrafon Agreement itself, a copy of which is attached hereto
as Exhibit 10.2.


Item 7.        Financial Statements, Pro Forma Financial Information and   
               Exhibits

     (c)  Exhibits

          10.1 Agreement for the sale and Purchase of Shares, dated as of
               December 18, 1997, by and among Geotek, Geotek GmbH Holdings
               Corporation, Telesystem International Wireless Inc. and TIWC
               Holding (UK) Limited.

          10.2 Purchase Agreement, dated as of December 18, 1997, by and among
               Geotek, Geotek Communications GmbH, o.tel.o communications GmbH &
               Co. and RegioKom Deutschland Gesellschaft fur Bundelfunkdienste
               mbH.

                                        3


<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.


                                   GEOTEK COMMUNICATIONS, INC.



Date: January 20, 1998             By:  /s/ Robert Vecsler
      -------------------               --------------------------------------
                                            Name: Robert Vecsler 
                                   Title:   Secretary and General Counsel


                                       4


<PAGE>

 
                                 EXHIBIT INDEX


Exhibit No.

10.1           Agreement for the Sale and Purchase of Shares, dated as of
               December 18, 1997, by and among Geotek, Geotek GmbH Holding
               Corporation, Telesystem International Wireless Inc. and TIWC
               Holding (UK) Limited.

10.2           Purchase Agreement, dated as of December 18, 1997, by and among
               Geotek, Geotek Communications GmbH, o.tel.o communications GmbH &
               Co. and RegioKom Deutschland Gesellschaft fur Bundelfunkdienste
               MbH.





<PAGE>
                                       
                                EXHIBIT 10.1 
<PAGE>
CONFORMED COPY
                           Dated  18 December 1997




                          GEOTEK COMMUNICATIONS, INC.

                                      and

                        GEOTEK GMBH HOLDING CORPORATION

                                      and

                           TIWC HOLDINGS (UK) LIMITED

                                      and  

                     TELESYSTEM INTERNATIONAL WIRELESS INC.





                                    AGREEMENT

                        relating to the sale and purchase
                  of the whole of the issued share capital of 

                            NATIONAL BAND THREE LIMITED





                                LINKLATERS & PAINES

                                  One Silk Street
                                  London EC2Y 8HQ

                              Tel: (+44) 171 456 2000



<PAGE>

Agreement for the Sale and Purchase of Shares

This Agreement is made on 18  December 1997

Between:

(1)  Geotek Communications, Inc. of 102 Chestnut Ridge Road, Montvale, New 
     Jersey 07645, United States of America ("Geotek"); 

(2)  Geotek GmbH Holding Corporation of 9/11 Washington Street, Wilmington, 
     Delaware 19801, United States of America (the "Vendor");

(3)  TIWC Holdings (UK) Limited of Block C, The Crescent, Jay's Close, The 
     Viables, Basingstoke, Hampshire, RG22 4BS United Kingdom (the 
     "Purchaser"); and

(4)  Telesystem International Wireless Inc of 1250 Rene-Levesque Blvd West, 
     Suite 1100, Montreal, Quebec, H3B 4WB Canada (the "Guarantor").

Recitals

(A)  Geotek owns the entire issued share capital of the Vendor;

(B)  The Vendor owns or will at Completion own the entire issued share 
     capital of National Band Three Limited;

(C)  The Guarantor owns, directly or indirectly, the entire issued share 
     capital of the Purchaser;

(D)  The Vendor wishes to sell, and the Purchaser wishes to purchase, on the 
     terms set out in this Agreement, the entire issued share capital of 
     National Band Three Limited;

(E)  The Guarantor has agreed to guarantee certain obligations of the 
     Purchaser under this Agreement; and

(F)  Geotek has agreed to guarantee all of the obligations of the Vendor 
     under this Agreement.

It is agreed as follows:


1    Interpretation

     In this Agreement, including the Schedules, the headings shall not 
     affect its interpretation and, unless the context otherwise requires, 
     the above definitions and the provisions in this clause 1 shall apply:

                                       2
<PAGE>

1.1  Definitions

     "agreed terms" means in relation to any document such document in the 
     terms agreed between the parties and signed by or on behalf of the 
     Purchaser's Solicitors and the Vendor's Solicitors for the purposes of 
     identification as that document may be amended by agreement in writing 
     between the parties from time to time for any reason including, without 
     limitation, to take account of any changes between the date of this 
     Agreement and Completion;

     "Articles of Association" means the articles of association of the 
     Company;

     "Associate" means in relation to any company, any body corporate 
     controlled by or under common control with that company, which, for the 
     avoidance of doubt, shall include any subsidiary or holding company of 
     that company and any subsidiary of any holding company of such company;

     "Audited Accounts" means the audited accounts of the Company for the 
     nine months ended on the Balance Sheet Date;

     "Balance Sheet Date" means 30 September 1997;

     "Business Day" means a day on which banks are open for business in: 
     London, England; Montreal, Canada; and New York, the United States of 
     America;

     "CHAPS" means clearing houses automated payment systems;

     "Company" means National Band Three Limited, registered number 2672488 
     of Wren House, Hedgerows Business Park, Colchester Road, Springfield, 
     Chelmsford, Essex, England;

     "Completion" means the completion of the sale and purchase of the Shares 
     pursuant to clause 6;

     "Completion Date" means the date on which Completion occurs;

     "controls" means with respect to a person and a body corporate that:

          (i)  he holds, or is beneficially entitled to, more than fifty (50) 
               per cent. of the equity share capital in the body, or 
               possesses more than fifty (50) per cent. of the voting power 
               in it; or

          (ii) he holds, or is beneficially entitled to, ten (10) per cent. 
               or more of the equity share capital in that body, or possesses 
               ten (10) per cent. or more of the voting power in it, and an 
               arrangement exists between him and any other participant in 
               the body as to the manner in which any voting power in that 
               body possessed by either of them is to be exercised, or as to 
               the omission by either of them to exercise such voting power; 
               or

         (iii) although he does not have such an interest in the body, it is 
               reasonable, having regard to all the circumstances, to expect 
               that he will be able, by whatever means and whether directly 
               or indirectly, to achieve the result that the affairs of the 
               body are conducted in accordance with his wishes;

     For the purposes of (ii):

     (a)  "arrangement" includes any agreement or arrangement, whether or not 
          it is, or is intended to be, legally enforceable; and

     (b)  a person shall be treated:

                                          3
<PAGE>

          (i)  as holding, or being beneficially entitled to, any equity 
               share capital which is held by a body corporate which he 
               controls or to which such a body corporate is beneficially 
               entitled; and

          (ii) as possessing any voting power possessed by such a body 
               corporate.

"Disclosure Letter" means the letter of even date with this Agreement from 
the Vendor to the Purchaser disclosing:

          (i)  information constituting exceptions to the Warranties; 

          (ii) information about the Company and its affairs related to the 
               Warranties; and

         (iii) details of other matters referred to in this Agreement;

"Environment" means all or any of the following media, namely: the air, water 
and land; and the medium of air includes, without limitation, the air within 
buildings and the air within other natural or man-made structures above or 
below ground;

"Environmental Laws" means all European Union regulations, United Kingdom 
statutes, regulations and orders and other local laws, rules, regulations and 
bye-laws and all codes of practice and guidance notes and circulars in force 
at the Completion Date, which:

(a)       have as a purpose or effect the protection or enhancement of the 
          Environment and relate to the presence manufacturing processing 
          treatment keeping handling use possession supply receiving sale 
          purchase import export or transportation of Hazardous Materials or 
          any event activity condition or phenomenon which alone or in 
          combination with others is capable of causing harm or damage to 
          property or to man or any other organism supported by the 
          Environment;

(b)       relate to the release spillage deposit escape discharge leak or 
          emission of Hazardous Materials;

(c)       relate to the control of Waste;

(d)       relate to noise vibration radiation or common law or statutory 
          nuisance or any other interference with the enjoyment or use of 
          land;

(e)       relate to the use of land or the erection occupation or use of 
          buildings or other natural or man-made structures above or below 
          ground; or

(f)       relate to human health and safety;

"Expert" has the meaning set out in clause 4.5.1;

"Hazardous Material" means any Substance or organism which alone or in 
combination with others is capable of causing harm or damage to property or 
to man or any other organism supported by the Environment or damaging the 
Environment or public health or welfare;

"ICTA" means the Income and Corporation Taxes Act 1988;

"Intellectual Property Rights" means all patents, patent applications, know-how,
trade marks, trade mark applications, trade names, registered designs, design
rights, copyrights, rights of extraction or database rights and other similar
industrial, intellectual or commercial rights subsisting anywhere in the world;

"Losses" means all losses, liabilities, costs (including, without limitation,
legal costs), charges, expenses, actions, proceedings, claims and demands;

                                      4

<PAGE>

"Management Accounts" means the unaudited management accounts relating to the 
Company drawn up in a format consistent with that adopted by the Company for 
its management accounts for the preceding twelve (12) months for any calendar 
month after the Balance Sheet Date (the "Relevant Management Accounts Date") 
and ending on a date at least ten (10) Business Days before the Completion 
Date;

"Material Adverse Change" has the meaning set out in clause 4.1.5;

"MMC" means the Monopolies and Mergers Commission of 48 Carey Street, London 
WC2;

"Net Loan Repayment" has the meaning set out in clause 5.3.1;

"Notification Date" means the Business Day on which notice is given pursuant 
to clauses 4.3.1 and 4.3.2 that all the Pre-conditions have been either 
fulfilled or waived, subject to any delay caused as a result of clauses 
4.1.5(c)(ii), 4.1.5(g), 4.4.3 and 4.5.2;

"OFT" means the Office of Fair Trading of Field House, 15 - 25 Bream 
Buildings, London EC4A 1PR;

"PAMR" means public access mobile radio;

"Payment" has the meaning set out in clause 4.5.1;

"Payment Account Details" means, in relation to any payment to be made under 
or pursuant to this Agreement, the name, account number, sort code, account 
location and other details specified by the payee and necessary to effect 
payment (whether by cheque, banker's draft, telegraphic or other electronic 
means of transfer) to the payee;

"Pension Scheme" means the National Band Three Pension Scheme in force at the 
date of this Agreement; 

"Personnel" has the meaning set out in clause 5.1.4;

"Planning Acts" means Town and Country Planning Acts 1971-1990;

"PMR" means private mobile radio;

"Pre-conditions" means the conditions set out in clauses 4.1.1, 4.1.2, 4.1.3 
and 4.1.4;

"Principal Properties" means Wren House, Hedgerows Business Park, Colchester 
Road, Springfield, Chelmsford, Essex; Rugby House, New Century Park, 
Coventry, CV3 1HJ; Faraday Centre, Magnet Road, East Lane, Wembley HA9 7RG; 3 
Pittbrook Street, Ardwick, Manchester M12 6LR and Kirk O'Shotts, Forrest 
Road, Salisburgh, Lanarkshire, ML7 9PB;

"Properties" means the properties brief details of which are set out in 
Schedule 3 and "Property" means any one of them;

"Purchaser's Accountants" means Ernst & Young of Becket House, 1 Lambeth 
Palace Road, London SE1 7EU;

"Purchaser's Solicitors" means Linklaters & Paines of One Silk Street, London 
EC2Y 8HQ;

"Radiocommunications Agency" means the Radiocommunications Agency of New 
Kings Beam House, 22 Upper Ground, London SE1 9SA;

"Retention Fund" has the meaning set out in clause 3.1;

                                       5

<PAGE>

"Security Interest" means any claim, charge, mortgage, security, lien, 
option, equity, power of sale or hypothecation;

"Shares" means nine (9) million ordinary shares of L1 each being the entire 
issued share capital of the Company;

"SoS" means the Secretary of State for Trade and Industry of 1 Victoria 
Street, London SW1H 0ET;

"Substance" means any natural or artificial matter whether in solid or liquid 
form or in the form of a gas or vapour and for this purpose includes 
electricity or heat including mixtures of such substances;

"TA Licence" means the licence dated 12 December 1997 granted to the Company 
under section 7 Telecommunications Act 1984 and includes any class licence 
granted under that Act which is relied upon by the Company;

"Taxation" means liability arising under any of the Taxation Statutes;

"Taxation Statutes" means statutes (and all regulations and arrangements 
whatsoever made thereunder) enacted (or issued coming into force or entered 
into) whether before or after the date of this Agreement providing for or 
imposing or relating to all forms of taxation duties levies and rates 
whatsoever including without limitation:

(a)       any charge tax duty or levy upon income profits chargeable gains or 
          any other property or instruments in writing or supplies or other 
          transactions;

(b)       income tax, corporation tax, advance corporation tax, withholding 
          tax, capital gains tax, inheritance tax, capital transfer tax, 
          value added tax, stamp duty, stamp duty reserve tax, capital duty, 
          customs and other import duties national insurance contributions, 
          general rates, water rates or other local rates;

(c)       any liability for sums equivalent to any such charge tax duty levy 
          or rates and/or for any penalty fine or interest payable in 
          connection therewith; and

(d)       any law or regulation whatsoever providing for or imposing or 
          otherwise relating to any charge tax levy or rates (of a like or 
          similar nature) chargeable outside the United Kingdom and/or for 
          any penalty fine or interest payable in connection with them.

"Tax Deed of Covenant" means the deed of covenant against Taxation in the 
agreed terms to be entered into at Completion;

"TETRA" means the draft digital PMR and PAMR standards of the European 
Telecommunications Standards Institute;

"UK GAAP" means accounting principles generally accepted in the UK;

"US$" or "$" means US dollars;

"Vendor's Accountants" means Coopers & Lybrand of 1 Embankment Place, London 
WC2;

"Vendor's Overheads" means all Losses relating to Andrew Robb and his 
secretary (including, without limitation, all costs relating to salaries, 
premises and pensions), all Losses relating to Peter Ratcliffe and all Losses 
relating to GMS Inc., all as described in the Disclosure Letter, and all 
Losses relating to all other contracts or arrangements referred to in 
paragraph 5.2 of Part 1 of Schedule 2;

                                       6

<PAGE>

     "Vendor's Solicitors" means Fladgate Fielder of Heron Place, 3 George 
     Street, London W1H 6AD;

     "Warranties" means the warranties set out in Part 1 of Schedule 2 and 
     "Warranty" means any one of them;

     "Warranty Claim" means any claim made in respect of an alleged breach of 
     one or more of the Warranties;

     "Waste" means any Substance which constitutes a scrap material or an 
     effluent or other unwanted surplus Substance arising from the 
     application of any process and any Substance or article which requires 
     to be disposed of as being broken worn out contaminated or otherwise 
     spoiled;

     "Working Capital" means current assets less current liabilities; and

     "WT Licence" means the licence granted on 9 April 1992 and the licence 
     granted on 15 December 1997 to the Company for the purpose of section 1 
     of the Wireless Telegraphy Act 1949 and any amendment, modification or 
     addition to such licences.

1.2  Subordinate Legislation

     Any reference to a statutory provision shall include any subordinate 
     legislation made from time to time under that provision on or before the 
     date of this Agreement.

1.3  Modification etc. of Statutes

     Any reference to a statutory provision shall include such provision as 
     from time to time modified, re-enacted or consolidated on or before the 
     date of this Agreement so far as such modification, re-enactment or 
     consolidation applies or is capable of applying to any transactions 
     entered into under this Agreement prior to Completion and (so far as 
     liability thereunder may exist or can arise) shall include also any past 
     statutory provision (as from time to time modified, re-enacted or 
     consolidated) which such provision has directly or indirectly replaced 
     on or before the date of this Agreement.

1.4  Connected Persons

     A person shall be deemed to be connected with another if that person is 
     connected with such other within the meaning of section 839 of the ICTA.

1.5  Vendor

     References to the Vendor shall, where the context allows, include Geotek 
     on the basis that the Vendor and Geotek are acting on a joint and 
     several basis.

1.6  Accounts

     Any reference to audited accounts or the Audited Accounts shall include 
     the directors' and auditors' reports, relevant balance sheets, profit 
     and loss accounts and cash flow accounts and related notes together with 
     all documents which are required by law to be annexed to the accounts of 
     the company concerned to be laid before that company in general meeting 
     in respect of the accounting reference period in question.

1.7  Companies Act 1985

     The words holding company and subsidiary shall have the same meanings in 
     this Agreement as their respective definitions in the Companies Act 1985.

                                       7
<PAGE>


1.8  Interpretation Act 1978

     The Interpretation Act 1978 shall apply to this Agreement in the same
     way as it applies to an Act (as defined therein).

1.9  Schedules etc.

     References to this Agreement shall include the recitals and Schedules to
     it and references to clauses and Schedules are to clauses of and
     schedules to this Agreement.

1.10 Information

     Any reference to books, records or other information means books,
     records or other information in any form including paper, electronically
     stored data, magnetic media, film and microfilm. 

1.11 SSAPs

     A reference to a SSAP means a statement of standard accounting practice
     as adopted by the Accounting Standards Board and published by the
     Institute of Chartered Accountants of England and Wales.

  2  Agreement to Sell the Shares

2.1  Sale of Shares

     The Vendor shall sell and the Purchaser, relying only on the Warranties
     and undertakings contained in this Agreement, shall purchase the Shares
     free from all Security Interests and together with all rights and
     advantages now and hereafter attaching thereto with effect from the
     Completion Date.

2.2  Rights of Pre-emption

     The Vendor hereby waives irrevocably any and all rights of pre-emption
     over the Shares conferred either by the Articles of Association or other
     equivalent document of the Company or in any other way and the Vendor
     shall procure that any Associate waives irrevocably and without
     consideration any such rights.

  3  Consideration

3.1  Amount and Retention Fund

     Subject as hereinafter provided the consideration for the purchase of
     the Shares shall be the sum of eighty million US dollars (US$80,000,000)
     together with any increase or less any decrease pursuant to clause 5.3
     of which 95% of that sum together with any increase or less any decrease
     pursuant to clause 5.3 shall be credited to the account specified in the
     Payment Account Details of the Vendor by way of CHAPS on the Completion
     Date and the balance (the "Retention Fund") shall be dealt with in
     accordance with the provisions set out in Schedule 6. Any sum payable to
     the Vendor out of the Retention Fund shall be paid to the Vendor,
     provided that if any amount by way of a Warranty Claim or by way of a
     claim pursuant to clauses 4.4, 5.2, 6.4, 6.6 or 9.15 shall become
     payable to the Purchaser out of the Retention Fund in accordance with
     the provisions of Schedule 6, the consideration shall be abated by the
     amount so payable and any right of the Purchaser to such claim shall be
     reduced by the amount of such abatement but without prejudice to the
     right of the Purchaser to recover the excess of any such claim or any
     other Losses from the Vendor.

                                       8
<PAGE>

3.2  Method of Payment

     Wherever in this Agreement provision is made for the payment by one
     party to another, such payment shall be effected by crediting the
     account specified in the Payment Account Details of the party entitled
     to the payment by way of CHAPS on or before the due date for payment
     unless the payee by notice to the payer, not later than three (3)
     Business Days prior to the due date for payment, elects to be paid by
     banker's draft drawn on any international bank reasonably acceptable to
     the payer and having an office in London. Payment of such sum shall be a
     good discharge to the payer of its obligation to make such payment
     hereunder.

3.3  Reduction of Consideration

     If any payment is due by the Vendor to the Purchaser in respect of any
     claim against the Vendor under this Agreement (including without
     limitation any Warranty Claim), the payment shall be made by way of
     adjustment of the consideration paid by the Purchaser for the Shares
     under this Agreement and the consideration shall be deemed to have been
     reduced by the amount of such payment.

  4  Conditions

4.1  Conditions Precedent

     Completion is conditional upon satisfaction of the following conditions:

     4.1.1     the receipt by the Purchaser and the Company of written 
               confirmation from each of the SoS and the Director General of 
               Telecommunications, in the agreed terms;

     4.1.2     (a)  the receipt by the Purchaser of written confirmation from 
               the OFT indicating, in terms satisfactory to the Purchaser, 
               that the SoS, in exercise of her functions under the Fair 
               Trading Act 1973, does not intend to refer the proposed 
               acquisition of the Shares or any matter relating thereto to 
               the MMC and for the purpose of this clause, an unconditional 
               written notice to the Purchaser from the OFT that the SoS does 
               not intend to refer the proposed acquisition to the MMC will 
               satisfy the Purchaser; or

               (b)  the SoS accepting an undertaking or undertakings in terms 
               satisfactory to the Purchaser pursuant to Section 75G of Fair 
               Trading Act 1973 instead of referring the proposed acquisition 
               of the Shares or any matter relating thereto to the MMC; 

     4.1.3     the receipt by the Purchaser and the Company of letters in the 
               agreed terms from EASAMS Limited, GEC - Marconi Communications 
               Limited and GPT Limited;

     4.1.4     the receipt by the Purchaser of written confirmation from the 
               SoS indicating in terms satisfactory to the Purchaser that the 
               merger of the Wireless Telegraphy Act TETRA licences issued on 
               15 December 1997 to the Company and Tetralink 
               Telecommunications Limited ("Tetralink") will be permitted 
               and/or that Tetralink will be licensed to use all of the 
               radiofrequency spectrum licensed under such licences; and for 
               the purposes of this clause written confirmation from the 
               Radiocommunications Agency that Tetralink will be licensed 
               pursuant to its Wireless Telegraphy Act TETRA licence to use 
               80 or more channels within the spectrum currently designated 
               in that licence, subject to co-ordination of such channels 
               with the Ministry of Defence, will satisfy the Purchaser; and

                                          9
<PAGE>

     4.1.5     there being no Material Adverse Change between the date of 
               this Agreement and Completion and for the purposes of this 
               Agreement "Material Adverse Change" means:

               (a)  the gross loss ("churn") to the Company of two thousand 
               (2,000) subscriber units (each subscriber unit being a radio 
               unit recorded on the Company's SMART system in a manner fully 
               consistent with such recording practice over the last year) in 
               any month or, if Completion is not at the end of a calendar 
               month, part of that calendar month, excluding former 
               subscriber units on the Company's networks which become 
               subscriber units to Fleetcomm Limited's networks in any such 
               calendar month or part of it;

               (b)  an increase of more than ten (10) per cent. in the 
               aggregate amount of the rentals of the sites on which the 
               Company's base stations are located payable by the Company for 
               the period of twelve (12) months ending on the Completion Date 
               over the aggregate amount of such rentals paid by the Company 
               for the period of twelve (12) months ended on the date which 
               is three hundred and sixty five (365) days before the 
               Completion Date;

               (c)  any actual or threatened litigation which either relates 
               singly or in the aggregate to an amount exceeding one million 
               pounds (L1,000,000), provided that: 

                    (i)   such litigation is not frivolous;

                   (ii)   the Vendor shall have twenty (20) days from the 
                          receipt of any statement of claim or other initiating
                          process in which to settle or otherwise dispose of 
                          such litigation; and 

                  (iii)   such litigation is not fully covered by a valid 
                          insurance policy held by the Company on the Completion
                          Date and disclosed to the Purchaser. 

               For the purpose of this clause, "fully covered" excludes any 
               reasonable deductible from any such insurance policy;

               (d)  twenty (20) or more of the Company's base stations being 
                    unavailable to provide service on its principal network 
                    for three (3) or more consecutive days;

               (e)  any of the switches operated by the Company being 
                    unavailable to provide service on its principal network 
                    for two (2) or more consecutive days;

               (f)  total destruction of the Property of the Company known as 
                    Wren House, or that Property not being able to be used by 
                    the Company for its operations for three (3) or more 
                    consecutive days;

               (g)  the Purchaser becoming aware of any liability of the 
                    Company which is not fully covered by a valid insurance 
                    policy as referred to in clause 4.1.5(c) and which was 
                    not disclosed in its Audited Accounts of one million 
                    pounds (L1,000,000) or more, which the Vendor has not 
                    settled in full within seven (7) days after the 
                    Notification Date;

               (h)  an announcement by or on behalf of the 
                    Radiocommunications Agency or by or on behalf of the SoS 
                    that the fee payable by the Company in respect of the use 
                    of spectrum for its principal network for the period from 
                    1 April 1998 to 31 March 1999 will be at least one 
                    hundred (100) per cent. more than such fee paid by the 
                    Company for the period from 1 April 1997 to 31 March 1998;

               (i)  as at 15 January 1998 the Company or its service 
                    providers having received notices of termination given 
                    after the date of this Agreement in respect of 3,000 
                    subscriber units (each 

                                          10
<PAGE>

                    subscriber unit being a radio unit recorded on the 
                    Company's SMART system in a manner fully consistent with 
                    such recording practice over the last year) which have 
                    not been implemented by the Company by removing the unit 
                    from the SMART system by that date, excluding former 
                    subscriber units on the Company's networks which have 
                    before that date become subscriber units to Fleetcomm 
                    Limited's networks.

4.2  Responsibility for Satisfaction 
     
     The parties hereby undertake to use all reasonable endeavours to
     ensure the satisfaction of the Pre-conditions and the Vendor hereby
     undertakes to use all reasonable endeavours to ensure that a Material
     Adverse Change does not occur. Without prejudice to the foregoing, it
     is agreed that all requests and enquiries from any government,
     governmental, supranational or trade agency, court or regulatory body
     relating to the Company or this Agreement shall be dealt with by the
     Vendor and the Purchaser in consultation with each other and each of
     the Vendor and the Purchaser shall promptly co-operate with and
     provide all necessary information and assistance reasonably required
     by such government, agency, court or body upon being requested to do
     so by the other.

4.3  Non-Satisfaction/Waiver

     4.3.1     The party responsible for the satisfaction of each 
               Pre-condition shall promptly give notice to the other parties 
               of the satisfaction of the relevant Pre-condition by giving 
               them a copy of the relevant written confirmations on the 
               Business Day next following the day on which it has received 
               the relevant confirmation. If the Pre-conditions are not 
               satisfied on or before sixty (60) days from the date of this 
               Agreement or such extended period as is referred to in clauses 
               4.1.5(c)(ii), 4.1.5(g), 4.4.3 and 4.5.2, either party may 
               terminate this Agreement and no party shall have any claim 
               against any other under it, save for any claim arising from 
               breach of the undertakings contained in clauses 4.2 and 9.4. 

     4.3.2     The Purchaser may waive in whole or in part and conditionally 
               or unconditionally any of the conditions in clause 4.1 by 
               notice in writing to the Vendor.

4.4  Reduction of Consideration

     4.4.1     In the event that notice of termination of the leases of any 
               of the Principal Properties is received by the Company after 
               the date of this Agreement but prior to Completion the 
               consideration payable by the Purchaser under clause 3.1 shall, 
               subject to clause 4.4.2, be reduced by L250,000 for each of 
               the Principal Properties in respect of which a notice has been 
               given provided that the Vendor's Accountants have given a 
               written opinion to the Vendor and the Purchaser, upon the 
               request of the Vendor, that Losses have been actually or are 
               reasonably expected to be incurred by the Company as a 
               consequence of the termination of the lease.

     4.4.2     In respect of each notice of termination, as described in 
               clause 4.4.1, whose validity is disputed by the Vendor:
          
               (i)   the consideration payable by the Purchaser under clause 
                     3.1 shall not be reduced at Completion;
          
               (ii)  the Retention Fund shall be increased by L250,000; and
          
               (iii) a payment from the Retention Fund together with the 
                     interest accrued on that amount shall be made pursuant to 
                     Schedule 6, provided that: (a) the notice of termination 
                     is held to be valid by

                                          11
<PAGE>
          
                    a court of competent jurisdiction; or (b) the Company 
                    does not contest the notice of termination within thirty 
                    (30) days of receipt.

     4.4.3     Upon receipt of a notice of termination as described in clause 
               4.4.1, the Vendor will immediately request the Vendor's 
               Accountants to render the written opinion referred to in that 
               clause within seven (7) Business Days. 

4.5  Dispute procedure

     4.5.1     If any dispute arises between the Vendor and the Purchaser as to
               the occurrence or alleged occurrence of a Material Adverse Change
               or a payment to the Purchaser pursuant to paragraph 1.3 of
               Schedule 6 ("Payment"), the Vendor and the Purchaser will
               immediately refer such dispute for determination by a senior
               chartered accountant appointed by agreement between the Vendor
               and the Purchaser or, failing agreement within three (3) Business
               Days, upon application by either of them to the President for the
               time being of the Institute of Chartered Accountants in England
               and Wales ("Expert").

     4.5.2     The Vendor and the Purchaser will jointly request the Expert 
               to act as an expert and not as an arbitrator and to state 
               within twenty (20) Business Days of his receipt of that 
               request whether, in his opinion: 

               (a)  a Material Adverse Change has occurred; or

               (b)  whether a Payment should be made.

     4.5.3     The determination of the Expert will be final and binding upon 
               the Vendor and the Purchaser, except in the case of manifest 
               error, and the Expert's costs will be shared equally between 
               the Vendor and the Purchaser. To assist him with the 
               determination, the Expert may employ the services of a lawyer.

5    Action Pending Completion

5.1  Vendor's General Obligations
          
     The Vendor shall procure that, pending Completion:

     5.1.1     the Company will carry on business only in the ordinary 
               course, (save insofar as otherwise agreed in writing by the 
               Purchaser) in substantially the same manner as presently 
               conducted, and the Vendor shall use all reasonable efforts to 
               preserve the Vendor's and the Company's relationship with the 
               Company's employees, customers, suppliers, lessors, licensors 
               and other business associates;

     5.1.2     the Purchaser receives copies of the Management Accounts 
               within twelve (12) Business Days of the month end to which 
               such Management Accounts relate, and any other monthly reports 
               prepared by the Company for its non-statutory directors and 
               all weekly technical and management reports known as "hotline 
               reports" in a timely fashion following their production;

     5.1.3     the Purchaser and its agents will, upon reasonable notice, be 
               allowed access to, and to take copies of, the statutory books, 
               minute books, leases, licences, contracts, tax records, 
               details of receivables without customer names, documents 
               evidencing or embodying Intellectual Property Rights, supplier 
               lists, consultants reports relating to the analogue business 
               of the Company and correspondence with regulators in the 
               possession or control of the Company;

                                          12
<PAGE>

     5.1.4     the Purchaser and its agents will, upon reasonable notice, be 
               allowed access to all directors including non-statutory 
               directors of the Company (the "Personnel") and the Personnel 
               shall comply with all reasonable requests by the Purchaser for 
               financial, operating, technical, marketing and other 
               information relating to the Company, including any information 
               relating to any pending application by the Company for any 
               regulatory or governmental approval but excluding any 
               information relating to customers' names, service providers' 
               names, prospective financial information, other than the 
               Company's 1998 budget for its analogue business, and 
               information relating to the TETRA business of the Company;

     5.1.5     the Company maintains in force all insurance policies and all 
               other such insurances normally kept in force by it; and

     5.1.6     the Vendor, to the extent that it does not currently own the 
               entire issued share capital of the Company, shall promptly do 
               so following the execution of this Agreement.

5.2  Restrictions on the Vendor

     Without prejudice to the generality of clause 5.1, the Vendor shall
     consult with the Purchaser in relation to all material matters
     concerning the running of the Company between the date of this
     Agreement and Completion, and the Vendor will permit the Purchaser to
     consult the Personnel on all matters concerning the operation of the
     Company between the date of this Agreement and the Completion Date,
     other than on those matters specifically excluded from clause 5.1.4,
     will arrange weekly meetings between the Company and the agents of the
     Purchaser to discuss the business of the Company and its integration
     into the Purchaser's Associates; and during that period shall procure
     that the Company shall not without the prior written consent of the
     Purchaser such consent not to be unreasonably withheld or delayed:

     5.2.1     incur or enter into any agreement or commitment involving any 
               capital expenditure in excess of L50,000 per item and L200,000 
               in aggregate, provided that in relation to the Company's 
               proposed digital business no further capital expenditure will 
               be made or committed to and no further expenses in relation to 
               that business will be incurred or committed to, other than 
               pursuant to existing contracts;

     5.2.2     enter into or amend any contract or commitment which is not 
               capable of being terminated without compensation at any time 
               with three (3) months notice or less or which relates to the 
               acquisition or lease of any premises other than up to 6 base 
               station sites or which is not in the ordinary course of 
               business or which involves or may involve total annual 
               expenditure in excess of L200,000;

     5.2.3     enter into or amend any Security Interest, contract or 
               commitment relating to any of the Properties or their 
               management or the rents payable therefor other than contracts 
               or commitments which would not have a material adverse effect 
               on the value of the Company or the value of the Properties;

     5.2.4     begin any discussions or negotiations or agree to the 
               amendment of the TA Licence or the WT Licence or in any way 
               act contrary to the terms of such Licences;

     5.2.5     begin any discussions or negotiations with Taxation 
               authorities;

     5.2.6     incur any additional borrowings or incur any other 
               indebtedness;

     5.2.7     make any material amendment to the terms and conditions of 
               employment (including, without limitation, remuneration, 
               pension entitlements and other benefits) of any employee, 
               provide or agree to provide any gratuitous payment or loan or 
               benefit to any such person or any of their dependants,

                                                 13
<PAGE>

               or dismiss or terminate the employment of any employee other 
               than for cause, or engage or appoint any additional employee 
               other than pursuant to offer letters outstanding at the date 
               of this Agreement, the details of which, other than the name 
               of the offeree, have been disclosed in writing to the 
               Purchaser in the Disclosure Letter;

     5.2.8     discontinue or amend the Pension Scheme to any material extent 
               or commence to wind it up or cause it to cease to admit new 
               members or communicate to any employee any material plan, 
               proposal or intention to amend, wind up, terminate or exercise 
               any discretion in relation to the Pension Scheme;

     5.2.9     pay any benefits under the Pension Scheme other than in 
               accordance with the terms of the documents governing such 
               scheme and not under any discretionary power;

     5.2.10    acquire or agree to acquire or dispose of or agree to dispose 
               of any  material asset or material stocks or allow or suffer 
               any of the Company's assets to become subject to any Security 
               Interest except:

               (a)  as permitted pursuant to clauses 5.2.1 and 5.2.2;

               (b)  for orders accepted or made by the Company in the 
                    ordinary course of business before the date of this 
                    Agreement; and

               (c)  for acquisitions made to fulfil orders made by customers 
                    in the ordinary course of business;

     5.2.11    take steps to procure payment by any debtor generally in 
               advance of the date on which book and other debts are usually 
               payable in accordance with the standard terms of business of 
               the Company or (if different) the period extended to any 
               particular debtor in which to make payment;

     5.2.12    delay making payment to any trade creditors generally beyond 
               the date on which payment of the relevant trade debt should be 
               paid in accordance with credit periods authorised by the 
               relevant creditors or (if different) the period extended by 
               any particular creditor in which to make payment;

     5.2.13    fail to pay any statutory creditor by the due date;

     5.2.14    amend any insurance policy, allow any insurance policy 
               normally kept in force by the Company to lapse, fail to notify 
               any insurance claim in accordance with the provisions of the 
               relevant policy or settle any such claim below the amount 
               claimed;

     5.2.15    create, allot or issue or redeem any share or loan capital of 
               the Company or any option, warrant or right relating thereto;

     5.2.16    acquire or agree to acquire any share, shares or other 
               interest in any company, partnership or other entity; or 

     5.2.17    declare, make or pay any dividend or other distribution or 
               repay any loan to shareholders except as provided in clause 
               5.3;

     and the Vendor shall indemnify and hold the Purchaser indemnified 
     against all Losses arising through its failure to comply with the 
     provisions of this clause 5.2.It is hereby acknowledged (for the 
     avoidance of doubt) that none of the provisions of this clause 5.2 or 
     the exercise or failure to exercise any of the Purchaser's rights 
     hereunder shall give rise to any liability on the part of the Purchaser 
     or any of its employees, consultants or representatives or any person 
     connected with it. The Vendor undertakes to the Purchaser to indemnify 
     and hold

                                          14
<PAGE>

     indemnified the Purchaser and such persons as aforesaid against all 
     Losses which it may incur by reason of any such liability, subject to 
     the Purchaser's employees acting in the normal and proper course of 
     their duties.

5.3 Net Loan Repayment

     5.3.1     The Vendor and the Purchaser agree, that between the date of 
               this Agreement and Completion, the Company shall repay to the 
               Vendor and/or its Associates the amounts owing to them as at 
               Completion, less the amounts owing by the Vendor and/or its 
               Associates (including GMS, Inc) to the Company as at 
               Completion, the net amount of such repayment to the Vendor 
               and/or its Associates being referred to as the "Net Loan 
               Repayment".

     5.3.2     At Completion the consideration for the purchase of the Shares 
               shall be adjusted as follows:

               (i)  it shall be increased by the amount by which L3,800,000 
                    exceeds the Net Loan Repayment;

               (ii) it shall be decreased by the amount by which the Net Loan 
                    Repayment exceeds L3,800,000.

     5.3.3     Notwithstanding the provisions of clause 5.3.1, the Purchaser 
               consents to the making of a partial Net Loan Repayment prior 
               to Completion of an amount not exceeding a total of L2,500,000.

     and any adjustment to the consideration shall be converted into US$ 
     based on the average pounds sterling/US$ exchange rate quoted by Lloyds 
     Bank plc at the close of business on the ten Business Days ended on the 
     Business Day immediately before the Notification Date.

5.4  Post Completion

     5.4.1     The Vendor's Accountants will be responsible, in consultation 
               with the Purchaser's Accountants, for the preparation on 
               behalf of the Company of its corporation tax return (and/or 
               amended return and corporation tax computation) for the year 
               ending 31 December 1997 and the computation calculating the 
               figures in the return and with the approval of the Company and 
               the Purchaser, filing them with the Inland Revenue. The 
               Company will remain responsible for signing such returns. The 
               Vendor's Accountants will also be responsible in consultation 
               with the Purchaser's Accountants and subject to the 
               Purchaser's written approval, such approval not to be 
               unreasonably withheld or delayed, for responding to any 
               queries raised by the Inland Revenue in relation to such 
               returns.

     5.4.2     The Vendor will prepare the accounts of the Company for the 
               year ending 31 December 1997 in consultation with the 
               Purchaser and the Purchaser's Auditors to reflect this 
               Agreement which will be audited by the Vendor's Accountants 
               and, to the extent that the management of the Company have 
               discretion to determine the accounting policies of the 
               Company, the Company will amend those policies as reasonably 
               required by the Purchaser, provided that no such amendment 
               shall be required to the extent that it would have adverse tax 
               consequences for the Vendor or to the extent that it would 
               cause the Vendor's Accountants to qualify their auditor's 
               report on such accounts;

6    Completion

6.1  Date and Place

     Subject to clause 4, Completion shall take place at the offices of the 
     Purchaser's Solicitors three (3) Business Days after the Notification 
     Date or at such other place or on such other date as may be agreed 
     between the Purchaser and the Vendor.

                                          15
<PAGE>

6.2  Vendor's Obligations on Completion

     On Completion the Vendor shall deliver or make available to the Purchaser:

     6.2.1     a certificate confirming the truth and accuracy in all 
               respects of the Warranties and that such Warranties are not 
               misleading in any respect as at Completion except as provided 
               in clause 7.2 and confirming that it does not have any 
               knowledge of any matter which would constitute a Warranty 
               Claim subject to the contents of the Disclosure Letter;

     6.2.2     a certificate confirming that no Material Adverse Change has 
               occurred;

     6.2.3     duly executed transfers of the Shares in favour of the 
               Purchaser or as it may direct accompanied by the relative 
               share certificates;

     6.2.4     the written resignations of each of the statutory directors 
               and secretary of the Company from his office as a statutory 
               director or secretary to take effect on the Completion Date in 
               the agreed terms;

     6.2.5     the written resignations of the auditors of the Company to 
               take effect on the later of the Completion Date and the date 
               on which the audited accounts of the Company for the year 
               ending 31 December 1997 and the associated management letters 
               are finalised, with acknowledgments signed by them in agreed 
               terms to the effect that they have no claim against the 
               Company and containing the statement referred to in Section 
               394 of the Companies Act 1985 to the effect that as at the 
               Completion Date there are no circumstances connected with 
               their resignation which they consider should be brought to the 
               notice of the members or creditors of the Company;

     6.2.6     the certificates of incorporation, corporate seals (if any), 
               cheque books and statutory books of the Company (duly written 
               up-to-date);

     6.2.7     all the financial and accounting books and records (including 
               those in relation to Taxation) of the Company and all 
               documents of title relating to the Properties;

     6.2.8     (if the Purchaser so requires) irrevocable powers of attorney 
               (in agreed terms) executed by the Vendor (as the holder of all 
               the Shares) in favour of the Purchaser to enable the Purchaser 
               (pending registration of the relevant transfers) to exercise 
               all voting and other rights attaching to the Shares and to 
               appoint proxies for this purpose;

     6.2.9     bank statements of all bank accounts of the Company as at 
               close of business on the Business Day before the Completion 
               Date;

     6.2.10    evidence reasonably satisfactory to the Purchaser that the 
               Vendor has fulfilled all liabilities of the Company under the 
               long-term incentive scheme described in the memorandum dated 
               27 August 1997 from E J Watts to Yaron Eitan, in respect of 
               share options issued under Geotek's share option plans dated 
               1989 and 1994 and in respect of the Vendor's Overheads;

     6.2.11    evidence satisfactory to the Purchaser that all intercompany 
               balances, including but not limited to payments owing by GMS, 
               Inc and the loan from Geotek to the Company have been settled 
               on a final basis;

     6.2.12    evidence satisfactory to the Purchaser that in respect of all 
               the Principal Properties the Company has a lease in its name 
               and such leases are valid and subsisting;

                                          16
<PAGE>

     6.2.13    evidence satisfactory to the Purchaser that the Company has a 
               lease or licence in its name, and such leases or licences are 
               valid and subsisting, for one hundred and five (105) of the 
               Properties; 

     6.2.14    written consent from the auditors of the Company, that to the 
               extent necessary, they will consent, subject to receiving 
               confirmation from any subsequent auditors of the Company that 
               no historic accounts prepared by them require adjustment, to 
               the copying and publication of the accounts included in the 
               three (3) annual returns of the Company for the years ended 31 
               December 1995, 1996 and 1997 by the Purchaser or any of its 
               Associates or future Associates in any of their regulatory or 
               financial filings, including registration statements and 
               exhibits;

     6.2.15    a copy of the most recent opinion of the financial adviser to 
               Geotek (or other investment banking firm) to the effect that 
               the consideration payable by the Purchaser under clause 3.1 is 
               fair to Geotek; and

     6.2.16    an opinion from Klehr, Harrison, Harvey, Branzburg & Ellers 
               LLP in terms reasonably satisfactory to the Purchaser that the 
               Shares are not subject to any Security Interest.

6.3  Board Resolutions of the Company

     On Completion the Vendor shall procure the passing of board
     resolutions of the Company:

     6.3.1     revoking all existing authorities to bankers in respect of the 
               operation of its bank accounts and giving authority in favour 
               of such persons as the Purchaser may nominate to operate such 
               accounts;

     6.3.2     accepting the resignations referred to in clause 6.2.4 and 
               appointing such persons (within the maximum number permitted 
               by the Articles of Association) as the Purchaser may nominate 
               as statutory directors and secretary;

     6.3.3     approving the registration of the share transfers referred to 
               in clause 6.2.3 subject only to their being duly stamped;

     6.3.4     accepting the resignation referred to in clause 6.2.5 and 
               appointing the Purchaser's Accountants as auditors of the 
               Company;

     6.3.5     changing its registered office in accordance with instructions 
               given by the Purchaser; and

     6.3.6     changing its accounting reference date in accordance with 
               instructions given by the Purchaser;

     and shall hand to the Purchaser duly certified copies of such 
     resolutions.

6.4  Indemnity

     The Vendor shall indemnify and keep indemnified the Purchaser on an
     after-tax basis against all Losses of the Company arising out of or in
     connection with any scheme of Geotek relating to the remuneration of,
     or other payments to, the Company's employees or directors, including
     the long-term incentive scheme described in the memorandum dated 27
     August 1997 from E J Watts to Yaron Eitan and share options issued
     under Geotek share option plans dated 1989 and 1994, and in respect of
     the Vendor's Overheads.

6.5  Payment of Price

     6.5.1     The Purchaser shall deliver to the Vendor a certificate 
               confirming the truth, completeness and accuracy of the 
               warranties set out in Part 2 of Schedule 2 as at Completion.

                                          17
<PAGE>

     6.5.2     Subject to clause 4, against compliance with clauses 5.1.2, 
               6.2 and 6.3 the Purchaser shall pay to the Vendor in 
               accordance with the payment details set out in clause 3 that 
               part of the consideration for the purchase of the Shares which 
               is payable to the Vendor on the Completion Date and as regards 
               the Retention Fund the Purchaser and the Vendor shall take the 
               necessary steps to complete the arrangements set out in 
               Schedule 6.

6.6  Default

     6.6.1     If the provisions of clauses 5.1.2, 6.2 and 6.3 are not fully 
               complied with by the Vendor by or on the Completion Date, the 
               Purchaser shall be entitled (in addition to and without 
               prejudice to all other rights or remedies available to it 
               including the right to claim damages but not including a right 
               to terminate this Agreement) by written notice to the Vendor 
               served on such date:

               (i)  to effect Completion so far as practicable having regard 
                    to the defaults which have occurred; or

               (ii) to fix a new date for Completion (not being more than 
                    twenty (20) Business Days after the agreed date for 
                    Completion) in which case the foregoing provisions of 
                    this clause 6 shall apply to Completion as so deferred 
                    but provided such deferral may only occur once.

     6.6.2     If the provisions of clause 6.5 are not fully complied with by 
               the Purchaser by or on the Completion Date or any new date for 
               Completion fixed pursuant to clause 6.6.1(ii), the Vendor 
               shall be entitled (in addition to and without prejudice to all 
               other rights or remedies available to it including the right 
               to claim damages) by written notice to the Purchaser served on 
               such date:

               (i)  to effect Completion so far as practicable having regard 
                    to the defaults which have occurred; or

               (ii) to fix a new date for Completion (not being more than 
                    twenty (20) Business Days after the agreed date for 
                    Completion) in which case the foregoing provisions of 
                    this clause 6 shall apply to Completion as so deferred 
                    but provided such deferral may only occur once.

7    Warranties

7.1  Incorporation of Schedule 2

     7.1.1     The Vendor warrants to the Purchaser on the date of this 
               Agreement and on the Completion Date in the terms set out in 
               Part I of Schedule 2 subject only to:

               (i)  any matter which is fully disclosed in the Disclosure 
                    Letter, the Audited Accounts or the Management Accounts 
                    made available to the Purchaser prior to the date of this 
                    Agreement; 

               (ii) any matter or thing hereafter done or omitted to be done 
                    pursuant to this Agreement or otherwise at the request in 
                    writing or with the approval in writing of the Purchaser; 
                    and

              (iii) the provisions of clause 7.2.2.

     7.1.2     The Vendor acknowledges that the Purchaser has entered into 
               this Agreement in reliance upon the Warranties and the 
               undertakings contained in this Agreement. Save as expressly 
               otherwise provided, the Warranties shall be separate and 
               independent and shall not be limited by reference to any other 
               paragraph of the Schedule, or by anything in this Agreement or 
               the Tax Deed of Covenant. 

                                          18
<PAGE>

     7.1.3     The Vendor confirms, as at the date of this Agreement (and 
               will confirm as at the Completion Date pursuant to clause 
               6.2.1), the truth and accuracy in all respects of the 
               Warranties, that such Warranties are not misleading in any 
               respect as at Completion except as provided in clause 7.2 and 
               that it does not have any knowledge of any matter which would 
               constitute a Warranty Claim other than as set out in the 
               Disclosure Letter.

     7.1.4     The Purchaser confirms that as at the date of this Agreement 
               it does not have any knowledge of a matter which would 
               constitute a Warranty Claim. For the purpose of this clause 
               7.1.4 "knowledge" means the knowledge of Yves Marois, Marc 
               Godin, Fran ois Dupuis and Ted Beddoes of any matter fully 
               disclosed in writing in the report dated 15 December 1997 from 
               the Purchaser's Accountants to the Purchaser and in the 
               Disclosure Letter.

7.2  Updating to Completion

     7.2.1     The Vendor further warrants to the Purchaser that:

               (i)  subject to clauses 7.1.1 and 7.2.2, the Warranties will 
                    be fulfilled down to and will be true and accurate in all 
                    respects and not misleading in any respect at Completion 
                    as if they had been given again at Completion; and

               (ii) if after the signing of this Agreement and before 
                    Completion any event shall occur or matter shall arise 
                    which results or may result in any of the Warranties 
                    being unfulfilled, untrue, misleading, incomplete or 
                    inaccurate in any respect at Completion the Vendor shall 
                    immediately notify the Purchaser in writing fully thereof 
                    prior to Completion and the Vendor (at its own cost) 
                    shall make any investigation concerning the event or 
                    matter which the Purchaser may require.

     7.2.2     The Purchaser agrees with the Vendor that clause 7.2.1(i) does 
               not apply to the following Warranties and that they will be 
               given at Completion as follows:

               (i)  paragraphs 3.8.11, 5.8.1, 5.8.2 and 5.8.3 of Part 1 of 
                    Schedule 2: the total number of Subscribers (as defined 
                    in paragraph 5.8.1 of Part 1 of Schedule 2) will be 
                    subject to a gross reduction of two thousand (2,000) per 
                    calendar month or part of a calendar month, excluding 
                    from the reduction, subscribers to the Company's networks 
                    in any such month or part of it which become subscribers 
                    to Fleetcomm Limited's network and that as at 15 January 
                    1998, the number of Subscribers which have given notice 
                    to the Company (whether directly or indirectly) to 
                    terminate but whose contracts have not yet been 
                    terminated does not exceed three thousand (3000). For the 
                    purpose of this clause "gross reduction" means before 
                    adding new subscribers during the period from the date of 
                    this Agreement to the Completion Date; and

               (ii) paragraphs 6.1.1 to 6.1.3 of Part 1 of Schedule 2 will be 
                    subject to additional employees disclosed pursuant to 
                    clause 5.2.7, but the Warranties will otherwise be given 
                    at Completion.

7.3  Limitation of Liability

     Notwithstanding the provisions of clauses 7.1 and 7.2, the Vendor shall 
     not be liable under this Agreement:

     7.3.1     Time Limits

               In respect of any claim unless notice of such claim is given 
               in writing by the Purchaser to the Vendor setting out such 
               details as are available of the specific matter in respect of 
               which the claim

                                          19
<PAGE>

               is made, within sixteen (16) months from the Completion Date 
               except that the limit will be six (6) years from the end of 
               the accounting reference period of the Company in which 
               Completion takes place in relation to a claim under paragraph 
               7 of Part 1 of Schedule 2 and will be unlimited in time in 
               relation to a claim under paragraph 1.4 of Part 1 of Schedule 
               2 except that the Vendor will cease to be liable for any claim 
               unless proceedings against it are issued and served within 
               twenty (20) months of the notice in question unless previously 
               satisfied, settled or withdrawn;
     


     7.3.2     Aggregate Minimum Claims

               In respect of any claim unless:

               (a)  that claim exceeds L10,000; and 

               (b)  the aggregate amount of all claims for which the Vendor 
                    would otherwise be liable under this Agreement and the 
                    Tax Deed of Covenant exceeds L250,000 but if the 
                    aggregate amount of the liability in respect of all such 
                    claims exceeds that figure then all claims, including 
                    claims previously notified, shall accrue against and be 
                    recoverable from the Vendor; 

     7.3.3     Maximum Claims

               In respect of any claim to the extent that the aggregate 
               amount of the liability of the Vendor for all claims made 
               under this Agreement and the Tax Deed of Covenant would exceed 
               the purchase consideration under clause 3 but in the case of 
               any claim relating to any statutory and/or criminal fine or 
               penalty the liability of the Vendor shall be without 
               limitation;

     7.3.4     Contingent Liabilities

               In respect of any liability which is contingent unless and 
               until such contingent liability becomes an actual liability 
               and is due and payable but this sub-clause shall not operate 
               to avoid a claim made in respect of a contingent liability 
               within the applicable time limit specified in clause 7.3.1 if 
               the requisite details of such claim have been delivered before 
               the expiry of such period (even if such liability does not 
               become an actual liability until after the expiry of the 
               relevant period);

     7.3.5     Provisions in the Accounts

               In respect of any claim if and to the extent that proper 
               provision or reserve or, in respect of contingent liabilities 
               only, note is made for the matter giving rise to the claim in 
               the Audited Accounts;

     7.3.6     Legislation and Taxation

               In respect of any matter, act, omission or circumstance (or 
               any combination thereof) (including, for the avoidance of 
               doubt, the aggravation of a matter or circumstance) to the 
               extent that the same would not have occurred but for:

               (i)  Changes in Legislation

                    the passing of, or any change in, after the date of this 
                    Agreement, any law, rule, regulation or administrative 
                    practice of any government, governmental department, 
                    agency or regulatory body including (without prejudice to 
                    the generality of the foregoing) any increase in the 
                    rates of Taxation or any imposition of Taxation or any 
                    withdrawal of relief from Taxation not actually (or 
                    prospectively) in effect at the date of this Agreement; or

                                          20
<PAGE>

               (ii) Accounting and Taxation Changes

                    any change in accounting or Taxation policy, bases or 
                    practice of the Purchaser introduced or having effect 
                    after the date of this Agreement.

     7.3.7     Insurance

               In respect of any claim to the extent that any Losses arising 
               from such claim are covered by a policy of insurance in force 
               on the date of this Agreement;

     7.3.8     Other Limitations

               In respect of any claim which:

               (i)  occurs or arises as a direct result of or is otherwise 
                    attributable to a voluntary act or omission occurring 
                    after Completion of the Purchaser or the Company, other 
                    than pursuant to a legally binding commitment created 
                    before Completion;

               (ii) arises as the result of any provision or reserve made in 
                    respect of it in the Audited Accounts being insufficient 
                    by reason of any increase in the rates of Taxation made 
                    after the date of this Agreement or arises as a result of 
                    the retrospective imposition of Taxation as a consequence 
                    of a change in the law enacted after the date of this 
                    Agreement.

             (iii) would not have arisen but for any claim, election, 
                    surrender or disclaimer made or omitted to be made or 
                    notice or consent given or omitted to be done by the 
                    Company, or the Purchaser under the provisions of the 
                    Taxation Statutes after date of this Agreement; or

               (iv) occurs or arises out of, as a result of or in connection 
                    with;

                    (a)  any change in the nature of the business of the 
                         Company or in the manner of conducting it after 
                         Completion; or

                    (b)  any asset acquired by the Company after Completion;

               (v)  occurs or arises as a result of or is otherwise 
                    attributable to an act or omission after the date of this 
                    Agreement of the Company (provided the Purchaser has 
                    consented in writing to such act or omission) or the 
                    Purchaser including anything which occurs or arises as a 
                    result of a change in any accounting policy pursuant to 
                    clause 5.4.2;

               (vi) is made good under clauses 4.4, 5.2, 6.4 or 9.15, except 
                    that this sub-clause 7.3.8(vi) shall apply only to the 
                    extent that a claim is made good;

     Provided that none of the limitations contained in this clause 7.3
     shall apply to any claim which arises or is increased, or to the
     extent to which it arises or is increased, as the consequence of, or
     which is delayed as a result of, fraud, wilful misconduct or wilful
     concealment by the Vendor or any officer or employee of the Vendor or
     any of the directors of the Company (including any non-statutory
     directors of the Company).

7.4  Recovery of ACT

     If the Vendor is liable to the Purchaser under the Warranties by
     reason of an obligation of the Company to pay advance corporation tax
     or any sum recoverable from the Company as if it were advance
     corporation tax, the liability of the Vendor will be reduced and the
     amount paid to the Purchaser in respect of such liability will be
     refunded (excluding any amount paid in respect of the Purchaser's or
     the Company's funding costs in 

                                          21
<PAGE>

     connection with such liability) when and to the extent that the
     Company obtains the benefit of a reduction in liability to mainstream
     corporation tax by reason of such payment.

7.5  Conduct of Claims

     7.5.1     If the Purchaser becomes aware of any matter that may give
               rise to a claim against the Vendor under this Agreement
               notice of that fact shall be given as soon as possible to
               the Vendor but any failure to give such notice shall not
               affect the rights of the Purchaser except to the extent that
               the Vendor is prejudiced by such failure.

      7.5.2     Without prejudice to the validity of the claim or alleged
                claim in question, the Purchaser shall allow the Vendor and
                its accountants and professional advisers to investigate the
                matter or circumstance alleged to give rise to such claim
                and whether and to what extent any amount is payable in
                respect of such claim and for such purpose the Purchaser
                shall give, subject to its being paid all reasonable costs
                and expenses, all such information and assistance, including
                access to premises and personnel, and the right to examine
                and copy or photograph any assets, accounts, documents and
                records, as the Vendor or its accountants or professional
                advisers may reasonably request.

     7.5.3     If the claim in question is a result of or arises in
               connection with a claim by or liability to a third party
               then the Purchaser (if requested promptly in writing by the
               Vendor and indemnified to its reasonable satisfaction by the
               Vendor against all Losses which may as a result be incurred
               by the Purchaser) shall take all such action and institute
               such proceedings as the Vendor may reasonably request to
               avoid, dispute, deny, defend, resist, appeal, compromise or
               contest such claim or liability. Nothing in this clause
               7.5.3 shall oblige the Purchaser to take any action which
               may reasonably damage its commercial interests.

7.6  Prior Receipt

     If the Vendor pays an amount in discharge of any claim under this
     Agreement and the Purchaser subsequently recovers (whether by
     payment, discount, credit, relief or otherwise) from a third
     party a sum which is related to the subject matter of the claim
     and which would not otherwise have been received by the
     Purchaser, the Purchaser shall pay to the Vendor an amount equal
     to (i) the sum recovered from the third party less any reasonable
     costs and expenses incurred in obtaining such recovery or (ii) if
     less, the amount previously paid by the Vendor to the Purchaser
     less any reasonable costs and expenses incurred to obtain such
     recovery.

7.7  Effect of Completion

     Subject to clause 7.3 the Warranties and all other provisions of this
     Agreement and the Tax Deed of Covenant insofar as the same shall not
     have been performed at Completion shall not be extinguished or
     affected by Completion, or by any other event or matter whatsoever
     (including, without limitation, any satisfaction and/or waiver of any
     Pre-condition) except by a specific and duly authorised written waiver
     or release by the Purchaser.

7.8  Purchaser's Warranties

     7.8.1     The Purchaser and the Guarantor warrant to the Vendor in the
               terms set out in part 2 of Schedule 2.

     7.8.2     Each of the Purchaser and its Associates undertakes to the
               Vendor that it will not, and undertakes to the Vendor to
               procure that its employees and agents will not, between the
               date of this Agreement and the Completion Date:

                                          22
<PAGE>

               (i)  without the prior written consent of the Vendor which 
                    cannot be unreasonably withheld, take the initiative to 
                    communicate with The General Electric Company PLC about 
                    any contract or any lease or licence of the Company or 
                    with any landlords of any of the Properties regarding any 
                    licence or lease with the Company or with any of the 
                    subscribers to the Company's networks other than in the 
                    ordinary course of business of the Purchaser or its 
                    Associates as carried on in the twelve (12) months prior 
                    to the date of this Agreement, or with any of the 
                    Company's service providers regarding the Company;

               (ii) induce or attempt to induce a breach of any of the 
                    Warranties;

              (iii) cause or attempt to cause a Material Adverse Change 
                    except that this sub clause 7.8.2(iii) does not apply to 
                    any activities of Fleetcomm Limited, provided that 
                    Fleetcomm Limited carries on business as it has done in 
                    the last 12 months; or

               (iv) communicate with any suppliers of TETRA with regard to 
                    any possible supply to the Company.

     7.8.3     Between the date of this Agreement and the Completion Date, the
               Purchaser and the Vendor will give each other reasonable notice
               of any proposed discussions with the OFT, the Radiocommunications
               Agency or the Communications and Information Industries Division
               of the Department of Trade and Industry relevant to this
               Agreement or the provision of radio frequency spectrum for TETRA
               and will invite the directors of the Company and their agents to
               participate in any meetings with such organisations.

8    Restrictions on the Vendor

8.1  Restrictions

     The Vendor further undertakes with the Purchaser and its Associates
     that the Vendor will not and will procure that (i) none of its
     Associates and (ii) none of its directors will in any Relevant
     Capacity during the Restricted Period:

     8.1.1     directly or indirectly carry on within the United Kingdom
               any business relating to the provision of PMR services, PAMR
               services or community radio services, regardless of the
               technology involved, nor be concerned or interested within
               such area in any such business save through the holding or
               being interested in not more than five (5) per cent of the
               outstanding share capital of a company the shares of which
               are listed on any recognised stock exchange;

     8.1.2     in competition with the business of the Company as described   
               in clause 8.1.1, canvass or solicit the custom of any person, 
               firm or company who has within three (3) years prior to 
               Completion been a material subscriber (having regard to the 
               number of units) of the Company; or

     8.1.3     induce or seek to induce any present senior employee of the
               Company with an annual salary in excess of L45,000 to become
               employed whether as employee, consultant or otherwise by any
               of the Vendor or its Associates.

8.2  Reasonableness of Restrictions

                                          23
<PAGE>

     The Vendor acknowledges and agrees that as a result of the consideration 
     paid by the Purchaser to the Vendor under clause 3, the restrictions 
     contained in this clause are no greater than is reasonable and necessary 
     for the protection of the interest of the Purchaser but if any such 
     restriction shall be held to be void but would be valid if deleted in 
     part or reduced in application, such restriction shall apply with such 
     deletion or modification as may be necessary to make it valid and 
     enforceable.

8.3  Interpretation

     The following terms shall have the following meanings respectively in this
     clause 8:

     8.3.1     "Restricted Period" means three (3) years commencing on 
               Completion; and

     8.3.2     "Relevant Capacity" means for its or his own account or for 
               that of any person, firm or company (other than the Purchaser 
               and the Company) or in any other manner and whether through 
               the medium of any company controlled by it or him or as 
               principal, partner, director, employee, consultant or agent.

9    Other Provisions

9.1  Announcements

     9.1.1     Subject to the agreed announcement on signing of this Agreement,
               pending Completion, the Vendor and the Purchaser shall, subject
               to the requirements of law or rules of any regulatory body,
               including any securities commission in Canada or the Securities
               and Exchange Commission in the United States of America, or the
               rules and regulations of any recognised stock exchange, consult
               together as to the terms of, the timetable for and manner of
               publication of, any formal announcement or writing to
               shareholders, employees, customers, suppliers, distributors,
               sub-contractors, stock exchange, media or other person which
               either may desire or be obliged to make regarding this Agreement.
               Any other communication which the Purchaser or the Vendor may
               make concerning the foregoing matters shall, subject to the
               requirements of law or rules of any regulatory body, including
               any of the securities commissions in Canada or the Securities and
               Exchange Commission in the United States of America, or the rules
               and regulations of any recognised stock exchange, be consistent
               with any such formal announcement or writing as aforesaid. 

     9.1.2     Subject to clause 9.1.1, neither the Purchaser nor the Vendor
               shall pending Completion make or authorise or issue any formal
               public announcement or writing concerning the subject matter of
               this Agreement or any other document or transaction referred to
               in or contemplated by this Agreement.

9.2  Successors and Assigns

     9.2.1     The Vendor agrees that the benefit of every provision in this
               Agreement is given to the Purchaser for itself and its
               Associates. Accordingly, the Purchaser (and its Associates) may,
               without the consent of the Vendor, assign to any Associate of the
               Purchaser the benefit of all or any of the Vendor's obligations
               under this Agreement, or any benefit to the Purchaser arising
               under or out of this Agreement.

     9.2.2     The Vendor agrees that, upon the request of the Purchaser or its
               Associates, this Agreement may be novated (in whole or in part)
               in favour of any Associate of the Purchaser, and the Vendor shall

                                          24
<PAGE>

               execute a Novation Agreement substantially in the terms set out
               in Schedule 5. If the Vendor fails to execute any such Agreement
               within 14 days of the request by the Purchaser, the Purchaser may
               execute it on behalf of the Vendor and for such purpose the
               Vendor hereby irrevocably appoints the Purchaser as the Vendor's
               attorney for the purpose of executing any such Agreement. The
               Vendor agrees to ratify and confirm any action properly taken by
               the Purchaser by virtue of this power of attorney.

9.3  Variation

     No variation of this Agreement shall be effective unless in writing
     and signed by or on behalf of each of the parties to this Agreement.

9.4  Further Assurance

     At any time after the date of this Agreement the Vendor shall and
     shall use its best endeavours to procure that any necessary third
     party shall execute such documents and do such acts and things as the
     Purchaser may reasonably require for the purpose of giving to the
     Purchaser the full benefit of all the provisions of this Agreement.

9.5  Costs

     The Vendor shall bear all legal, accountancy and other costs and
     expenses incurred by it and the Company in connection with this
     Agreement and the sale of the Shares. The Purchaser shall bear all
     such costs and expenses incurred by it.

9.6  Interest

     If the Vendor or the Purchaser default in the payment when due of any
     sum payable under this Agreement (whether determined by agreement or
     pursuant to an order of a court or otherwise) the liability of the
     Vendor or the Purchaser (as the case may be) shall be increased to
     include interest on such sum from the date when such payment is due
     until the date of actual payment (whether after or before judgment) at
     a rate per annum of three (3) per cent above the base rate from time
     to time of Midland Bank PLC. Such interest shall accrue from day to
     day.

9.7  Notices

     9.7.1     Any notice or other communication requiring to be given or
               served under or in connection with this Agreement shall be
               in writing and shall be sufficiently given or served if
               delivered or sent:

               In the case of either the Vendor or Geotek, to:


               102 Chestnut Ridge Road
               Montvale
               New Jersey 07645
               United States of America
 
               Fax:  1 (201) 930 1363
               Attention:  Robert Vecsler



                                          25
<PAGE>

               and with a copy to the Vendor's Solicitors for the attention 
               of Nicolas Greenstone;

               in the case of the Purchaser, to:


               Block C 
               The Crescent 
               Jay
               's Close, 
               The Viables,
               Basingstoke,
               Hampshire RG22 4BS.

               Fax:  (01256) 368002
               Attention:  Marc Godin

               and in the case of the Guarantor, to:

               1250 Rene-Levesque Boulevard West 
               Suite 1100, Montreal, Quebec 
               Canada

               Fax:  + 1 514 925 8470
               Attention:  Fran ois Dupuis and Yves Marois


     9.7.2     Any such notice or other communication shall be delivered by hand
               or sent by courier, fax or prepaid first class post. If sent by
               courier or fax such notice or communication shall conclusively be
               deemed to have been given or served at the time of dispatch, in
               case of service in the United Kingdom, or on the following
               Business Day in the case of international service. If sent by
               post such notice or communication shall conclusively be deemed to
               have been received two (2) Business Days from the time of
               posting, in the case of inland mail in the United Kingdom or
               three (3) Business Days from the time of posting in the case of
               international mail. 

9.8  Severance

     If any term or provision in this Agreement is held to be illegal or
     unenforceable, in whole or in part, under any enactment or rule of
     law, such term or provision or part shall to that extent be deemed not
     to form part of this Agreement but the enforceability of the remainder
     of this Agreement shall not be affected and in lieu of such illegal or
     unenforceable provision there should be added automatically as a part
     of this Agreement a provision 

                                          26
<PAGE>

     as similar in terms to such illegal or unenforceable provision as may
     be possible and be legal and enforceable, it being the intent of the
     parties to maintain the benefit of the bargain for all parties.

9.9  Counterparts

     This Agreement may be executed in any number of counterparts each of
     which shall be deemed an original, but all the counterparts shall
     together constitute one and the same instrument.

9.10 Restrictive Trade Practices

     Notwithstanding any other provision of this Agreement, no provision of
     this Agreement which is of such a nature as to make the Agreement
     liable to registration under the Restrictive Trade Practices Act 1976
     shall take effect until the day after that on which particulars
     thereof have been duly furnished to the Director General of Fair
     Trading pursuant to the said Act. Each of the Vendor and Geotek agree
     to notify the Purchaser if either of them commences to carry on
     business in the United Kingdom within three (3) years from the date of
     this Agreement.

9.11 Governing Law and Submission to Jurisdiction

     This Agreement and the documents to be entered into pursuant to it,
     save as expressly referred to therein, shall be governed by and
     construed in accordance with English law and all the parties
     irrevocably agree that the courts of England are to have exclusive
     jurisdiction to settle any disputes other than pursuant to clause 4.5
     which may arise out of or in connection with this Agreement and such
     documents.

9.12 Appointment of Process Agent

     9.12.1    The Vendor hereby irrevocably appoints the Vendor's Solicitors as
               its agent for the service of process in England in relation to
               any matter arising out of this Agreement, service upon whom shall
               be deemed completed whether or not forwarded to or received by
               the Vendor.

     9.12.2    The Vendor shall notify the Purchaser of any change in the
               address of its process agent within twenty-eight (28) days of
               such change.

     9.12.3    If such process agent ceases to have an address in England the
               Vendor irrevocably agrees to appoint a new process agent
               acceptable to the Purchaser and to deliver to the Purchaser
               within fourteen (14) days a copy of a written acceptance of
               appointment by the process agent.

     9.12.4    Nothing contained in this Agreement shall affect the right to
               serve process in any other manner permitted by law or the right
               to bring proceedings in any other jurisdiction for the purposes
               of the enforcement or execution of any judgment or other
               settlement in any other courts.

9.13 Guarantee of Purchaser's Obligations

     In consideration of the Purchaser agreeing to enter into this
     Agreement the Guarantor undertakes with the Vendor that:

               (i)  if the Purchaser fails to pay the consideration set out in
                    clause 3.1, the Guarantor will on demand pay to the Vendor
                    any money due but not paid by the Purchaser and indemnify
                    the Vendor against all Losses which it may incur by reason
                    of such default on the part of the Purchaser in performing
                    and observing its obligations under clause 3.1; and

                                          27
<PAGE>

               (ii) although, as between the Purchaser and the Guarantor, the
                    Guarantor is a guarantor only, as between the Guarantor and
                    the Vendor, the Guarantor is deemed to be a principal debtor
                    and accordingly will not be released or discharged nor will
                    its liability under this Agreement be prejudiced by any
                    forbearance or indulgence shown by the Vendor to the
                    Purchaser, whether as to payment, time, performance or
                    otherwise.

9.14 Vendor's Awareness

     For the purpose of this Agreement references to the Vendor being aware
     of any fact or matter means the awareness of the Vendor and its
     employees, after making due and careful enquiry of the directors of
     the Company, including any non-statutory director of the Company.

9.15 Base Station Licences

     Within the period of six (6) months from the Completion Date, the
     Vendor will pay to the Purchaser on demand against reasonable evidence
     all Losses incurred by the Company as a result of the lease or licence
     of any base station used by the Company not being in the name of the
     Company on the Completion Date, including without limitation:

     9.15.1    all expenses incurred by the Company in order to transfer into
               the name of the Company any base station leases or licences which
               are not in the name of the Company on the Completion Date
               including but not limited to any administrative expenses, legal
               fees and amounts paid to landlords, whether by way of expenses,
               legal fees and amounts paid on the issue of a new lease or
               licence; and

     9.15.2    the reasonable costs directly incurred by the Company to move its
               network equipment to another base station in the event that the
               landlord of any base station referred to in clause 9.15.1
               terminates that lease or licence within six (6) months of the
               Completion Date.

9.16 Audit and Access Rights

     During the six (6) years from the Completion Date, the Purchaser will
     permit the Vendor and its duly authorised agents access on reasonable
     notice during normal business hours and, at its cost, to take copies
     of, the accounting and Taxation records and correspondence, tax
     returns, correspondence with Taxation authorities and all accounting
     records and work papers certified by the Vendor's Accountants as
     necessary to complete the Vendor's or  Geotek's tax returns relating
     to any accounting period ending on or before the Completion Date,
     subject always to the Vendor and Geotek and their duly authorised
     agents agreeing to keep such records confidential and to use them only
     for the purposes of the Taxation returns of the Vendor or its
     Associates and subject to the Company holding such records.

9.17 No other beneficiaries

     The parties to this Agreement do not intend that the Company's 
     employees, customers, lessors, licensors, suppliers or any other person 
     should obtain any rights as third party beneficiaries of this Agreement. 

                                               28

<PAGE>
 
In witness whereof this Agreement has been duly executed.


SIGNED by ROBERT
VECSLER  on behalf
of GEOTEK                }           signed
COMMUNICATIONS, INC.
in the presence of:

 
witnessed
 

SIGNED by ROBERT
VECSLER on behalf of
GEOTEK GmbH HOLDING      }           signed
CORPORATION in the
presence of:


witnessed
 

SIGNED by MARC GODIN
on behalf of TIWC
HOLDINGS (UK)            }           signed
LIMITED in the
presence of:

 
witnessed
 

SIGNED by YVES
MAROIS on behalf
of TELESYSTEM            }           signed
INTERNATIONAL
WIRELESS INC. in
the presence of:

 
witnessed
 

                                          29

  <PAGE>

                                     EXHIBIT 10.2



<PAGE>


                                   Attachment A to the notarial deed ___/1997
                                   of the notary public ___________________

                                  Purchase Agreement
                                           
between

I.   o.tel.o communications GmbH & Co.
     Am Bonneshof 35,
     40474 Dusseldorf                   - hereinafter "Seller 1"-

II.  Geotek Communications GmbH
     Am Luftschacht 20
     45307 Essen                        -hereinafter "Seller 2"-

                                        -hereinafter jointly the "Sellers"-

and

III. Geotek Communications, Inc.
     102 Chestnut Ridge Road
     Montvale, NJ 07645, USA            -hereinafter "Geotek Communications"-

and

IV.  RegioKom Deutschland Gesellschaft fur BundelfunkdienstembH
     Heynstr 19
     13187 Berlin                       -hereinafter the "Buyer"-

(1 to 4 hereinafter also referred to as the "Party" or jointly as the "Parties)



                                          1
<PAGE>
 
                                       Contents
                                           
Preamble

Section 1  Purchase and Assignment of the Limited Partnership Interests in
             Terrafon KG

Section 2  Purchase and Assignment of the Shares in Terrafon GmbH

Section 3  Conditions Precedent

Section 4  Purchase Price, Escrow Account

Section 5  Cooperation

Section 6  Representations and Warranties

Section 7  Non-compliance with the Representations and Warranties

Section 8  Tax Assessments, Audits and Public Charges

Section 9  Period between Signing and Closing

Section 10  Geotek Communications Guarantee

Section 11  Lease Guarantees

Section 12  Channel Fees Indemnification

Section 13  Liability of the Sellers as Several Debtors

Section 14  Secrecy; Non-competition Covenants

Section 15  Expenses and Taxes

Section 16  Law; Language; Arbitration

Section 17  Final Regulations

Section 18  Partial Invalidity

                                          2
<PAGE>


 
Preamble

 I.  Seller 1 with registered office in Dusseldorf, registered with the
     Commercial Register of the Lower Court of Dusseldorf under number HRA
     13103, and Seller 2 with registered office in Salzgitter and an office in
     Essen, registered with the Commercial Register of the Lower Court of
     Salzgitter under number HRB 913 are the sole limited partners in Terrafon
     Bundelfunk GmbH & Co. KG (hereinafter "Terrafon KG") with registered office
     in Essen, registered with the Commercial Register of the Lower Court of
     Essen under number HRA 6637.  They hold the following registered limited
     partnership interests in the capital of Terrafon KG with a total face value
     of DM 30,000,000, whereby the limited partnership interest of each limited
     partner corresponds to its maximum liability as registered in the
     Commercial Register:

     A.  Seller 1 holds a registered limited partnership interest in the amount
         of DM 15,000,000, and thereby holds 50% in the capital of 
         Terrafon KG, and

     B.  Seller 2 holds a registered limited partnership interest in the amount
         of DM 15,000,000, and thereby holds 50% in the capital of Terrafon KG.

 II. Further Seller 1 and Seller 2 are the sole shareholders of Terrafon
     Bundelfunk Geschaftsfuhrungs Gesellschaft mbH (hereinafter "Terrafon GmbH")
     with registered office also in Essen, registered with the Commercial
     Register of the Lower Court of Essen under number HRB 12247.  The
     registered capital of Terrafon GmbH amounts to DM 55,000, whereby Seller 1
     holds one share with a face value of DM 27,500, and Seller 2 holds one
     share with a face value of DM 27,500.  Terrafon GmbH is the sole general
     partner of Terrafon KG, but has no capital interest in Terrafon KG. 
     Terrafon GmbH is and has been engaged solely in its business as general
     partner of Terrafon KG.

III. Accordingly, Seller 1 and Seller 2 are the sole limited partners in
     Terrafon KG and the sole shareholders in Terrafon GmbH (hereinafter
     jointly referred to as the "Terrafon Companies").

 IV. Seller 2 is an indirect wholly-owned subsidiary of Geotek Communications.

  V. Prior to the date hereof, certain corporate mergers and restructuring have
     taken place which are in more detail described in Enclosure A.

 VI. The Sellers have agreed to sell and assign, and the Buyer, having its
     registered office in Berlin, registered with the Commercial Register of the
     Lower Court of Charlottenburg under HRB 39499, and being a wholly owned
     subsidiary of RegioKom Verwaltungsgesellschaft mbH with registered office
     in Frankfurt am Main, registered with the Commercial Register of the Lower
     Court of Frankfurt am Main under HRB 39579, has agreed to acquire, the
     limited partnership interests in Terrafon KG, as well as the shares in
     Terrafon GmbH, held by the Sellers, as of December 31, 1997, 24.00 p.m. for
     the Sellers / January 1, 1998, 0.00 a.m. for the Buyer 
     (the "Effective Date").

Based on the above, the Parties enter into the following agreement:

                                     Section  I.

                                          3
<PAGE>

     Purchase and Assignment of the Limited Partnership Interests in Terrafon KG
                                           
     A.  Effective as of the Effective Date Seller 1 sells its registered
         limited partnership interest of DM 15,000,000 in Terrafon KG to the
         Buyer, who accepts it.

     B.  Effective as of the Effective Date Seller 2 sells its registered
         limited partnership interest of DM 15,000,000 in Terrafon KG to the
         Buyer, who accepts it.

     C.  The assignment of the limited partnership interests sold pursuant to
         Section 1.1 and Section 1.2 will be consummated subject to the
         conditions precedent listed in Section 3.1 by the assignment of its
         registered limited partners interest in Terrafon KG in the total
         amount of DM 15,000,000 by Seller 1 to the Buyer, and by the
         assignment of its registered limited partnership interest in Terrafon
         KG in the total amount of DM 15,000,000 by Seller 2 to the Buyer.

     The Buyer accepts the assignments.  The limited partnership interests
     mentions in Section 1.1 and Section 1.2 will be hereinafter referred to as
     the "Sold Limited Partnership Interests".

     D.  The Sold Limited Partnership Interests together with the rights to
         receive profits will be sold and assigned as of the Effective Date.

     E.  Seller 1 and Seller 2 hereby consent to the sale and assignment of the
         Sold Limited Partnership Interests to the Buyer in accordance with
         Section 16.1 of the Partnership Agreement of Terrafon KG.  The consent
         of the sole managing director of Terrafon GmbH on behalf of Terrafon
         KG to the assignments of the Sold Limited Partnership Interests to the
         Buyer is enclosed as Enclosure 1.  The Sellers represent (zusichern)
         that there are no further corporate consent requirements.

                                     Section  II.

                Purchase and Assignment of the Shares in Terrafon GmbH
                                           
     A.  Effective as of the Effective Date Seller 1 sells its share of DM
         27,500 in Terrafon GmbH to the Buyer, who accepts it.

     B.  Effective as of the Effective Date Seller 2 sells its share of DM
         27,500 in Terrafon GmbH to the Buyer, who accepts it.

     C.  The assignment of the shares sold pursuant to Section 2.1 and Section
         2.2 will be consummated subject to the conditions precedent listed in
         Section 3.1 by the assignment of its share with a face value of DM
         27,500 by Seller 1 to the Buyer, and by the assignment of its share
         with a face value of DM 27,500 by Seller 2 to the Buyer.

    The Buyer accepts the assignments.  The shares mentioned in Section 2.1 and
    Section 2.2 with a face value of DM 27,500 each will be hereinafter
    referred to as the "Sold Terrafon Shares".

     D.  The Sold Terrafon Shares will be sold and assigned as of the Effective
         Date together with the rights to receive dividends.

                                         4
<PAGE>

     E.  Seller 1 and Seller 2, in their capacities as sole shareholders of
         Terrafon GmbH, hereby consent to the sale and assignments of the Sold
         Terrafon Shares to the Buyer in compliance with Section 9.1 of the
         Articles of Association of the Terrafon GmbH and they hereby waive
         their preemptive rights under Section 9.3 of said Articles.

                                    Section  III.
                                 Conditions Precedent
                                           
     A.  The assignments of the Sold Terrafon Shares, and the Sold Limited
         Partnership Interests are subject to the conditions precedent
         ("Conditions Precedent") that:

         1.  the required consent of the Federal Ministry for Post and
             Telecommunication, which in turn will require the consent of the
              Federal Cartel Office, is granted;

         2.  Buyer provides for (i) the release pursuant to Section 11.1 a) of
             the relevant guarantors by the Relevant Lessors of the Guarantees
             issued by Quante Aktiengesellschaft and RWE Telliance
             Aktiengesellschaft in connection with the Leasing Agreements
             referred to in Section 11.1, or (ii) bank guarantees in favor of
             the Relevant Lessors pursuant to Section 11.1 b);

         3.  the Buyer is duly registered in the Commercial Register of the
             Lower Court of Essen as new limited partner of Terrafon KG, as
             special successor to the Sold Limited Partnership Interests; and

         4.  the payment of the Purchase Price (as defined in Section 4.1) and
             of the purchase price for the Loan (as defined in Section 9.5).

     The day on which all Conditions Precedent mentioned are fulfilled is
     hereinafter called the "Closing Date".  The Buyer may waive in writing the
     Condition Precedent in Section 3.1 c).


     B.  If the Closing Date is a date later than February 16, 1998 due to no
         fault of the Sellers and the Buyer, but other than solely due to a
         failure of the Commercial Register of the Lower Court of Essen to
         register the Buyer pursuant to 3.1 c), the Sellers jointly, or the
         Buyer, may decide to withdraw from this Agreement by written notice to
         the relevant other Party or Parties with no obligations remaining
         under this Agreement (provided that the Conditions Precedent pursuant
         to Section 3.1 have not been fulfilled in the meantime prior to the
         giving of such notice).

                                     Section  IV.
                            Purchase Price; Escrow Account
                                           
     A.  As consideration for the sale and assignments of the Sold Limited
         Partnership Interests and the Sold Terrafon Shares (hereinafter
         jointly referred to as "Sold Interests"), including the rights
         mentioned in Sections 1.4 and 2.4, and all other rights granted
         hereunder, the Buyer will pay to the Sellers a purchase price
         ("Purchase Price") of DM 14 million (in words; fourteen million German
         marks).  The Purchase Price will be allotted as follows:

                                          5
<PAGE>

                a.  - DM 27,500 for the Sold Terrafon Share of Seller 1 -

                b.  - DM 6,972,500 for the Sold Limited Partnership Interest of
                      Seller 1 -

                c.  - DM 27,500 for the Sold Terrafon Share of Seller 2 -

                d.  - DM 6,972,500 for the Sold Limited Partnership Interest of
                      Seller 2 -

      B.  The Purchase Price mentioned in Section 4.1 is due within 10 working
          days after proof that the Conditions Precedent as stipulated in
          Section 3.1 a) to c) have been fulfilled.

      C.  The Purchase Price is payable as follows:

4.3.1     DM 6,500,000 (in words six million five hundred thousand German marks)
          to the account no 1260900 of Seller 1 with the Commerzbank AG,
          Dusseldorf branch (bank code 300 400 00);

4.3.2     DM 6,500,000 (in words six million five hundred thousand German marks)
          to the account no. ABA#026007825, Attn.: Corporate Trust A/C # CT-968C
          Geotek Communications, Inc. SR. Discount Notes Custody Account;

4.3.3     The remaining part of the Purchase Price (DM 1,000,000) shall be paid
          into Escrow as follows:

     In order to secure the indemnification of the Buyer by the Sellers set
     forth in Section 12, and the claims of the Buyer against the Sellers
     pursuant to Sections 7 and 8, if any, the Parties shall enter into the
     Escrow Agreement ("Escrow Agreement") substantially in the form set out in
     Enclosure 2 and instruct their relevant Agents (as defined in Escrow
     Agreement) to also execute the same.

     The Buyer shall fund as per the Closing Date, in satisfaction of its
     obligation to pay the Purchase Price, the Escrow Account (as defined in the
     Escrow Agreement) by a payment of DM 1,000,000 (the "Escrow Funds").

     The DM 1,000,000 (plus interest, minus fees, costs, charges and Agents'
     Indemnification Amounts (as defined in the Escrow Agreement) in whole (the
     "Escrow Funds") shall serve as a security for claims of the Buyer under
     Sections 7 and 8, made pursuant to joint representations and warranties of
     the Sellers and as a security for the indemnity obligations of the Sellers
     pursuant to Section 12.  DM 500,000 (plus pro rata interest, minus pro rata
     fees, costs, charges and Agents' Indemnification Amounts) shall serve as
     security for the claims of the Buyer against Seller 1 in connection with
     representations and warranties made solely by Seller 1.  DM 500,000 (plus
     pro rata interest, minus pro rata fees, costs, charges and Agents'
     Indemnification Amounts) shall serve as security for the claims of the
     Buyer against Seller 2 in connection with representations and warranties
     made solely by Seller 2.

     The Parties shall give joint written instructions to the Agents pursuant to
     litC1 of the Escrow Agreement, to release the Escrow Funds to the Buyer (to
     an account to be identified in writing by the Buyer):

                                          6
<PAGE>


                a.  up to 100% of the Escrow Funds, to the extent there are
                    payment obligations of the Sellers towards the Buyer
                    pursuant to (a) an agreement between Seller 1, Seller 2 and
                    the Buyer that Seller 1 and Seller 2 owe moneys to the Buyer
                    pursuant to representations and warranties made jointly by
                    the Sellers under Sections 7 and 8, or the indemnification
                    under Section 12, or (b) the ruling of the Arbitration Panel
                    as set forth in the Arbitration Agreement provided for in
                    Section 16.2, stating the obligations of the Sellers to pay
                    moneys to the Buyer based on a breach of representations and
                    warranties of the Sellers under Sections 7 and 8, or the
                    indemnification under Section 12; in each case such
                    agreement to be entered into, and the ruling issued prior to
                    the expiration of the day 15 months after the Closing Date;

                b.  up to 50% of the Escrow funds, to the extent there are
                    payment obligations of Seller 1 towards the Buyer pursuant
                    to (a) an agreement between Seller 1 and the Buyer that
                    Seller 1 owes moneys to the Buyer pursuant to
                    representations and warranties made solely by Seller 1 under
                    Sections 7 and 8; or (b) the ruling of the Arbitration Panel
                    as set forth in the Arbitration Agreement provided for in
                    Section 16.2, stating the obligation of Seller 1 to pay
                    moneys to the Buyer based on a breach of the representations
                    and warranties of Seller 1 under Sections 7 and 8; such
                    agreement to be entered into, and the ruling issued prior to
                    the expiration of the day 15 months after the 
                    Closing Date; and

                c.  up to 50% of the Escrow Funds, to the extent there are
                    payment obligations of Seller 2 towards the Buyer pursuant
                    to (a) an agreement between Seller 2 and the Buyer that
                    Seller 2 owes moneys to the Buyer pursuant to
                    representations and warranties made solely by Seller 2 under
                    Sections 7 ad 8; or (b) a ruling of the Arbitration Panel as
                    set forth in the Arbitration Agreement provided for in
                    Section 16.2, stating the obligation of Seller 2 to pay
                    moneys to the Buyer based on a breach of the representations
                    and warranties of Seller 2 under Sections 7 and 8; such
                    agreement to be entered into, and the ruling issued prior to
                    the expiration of the day 15 months after the Closing Date.

          (hereinafter the "Buyer's Indemnification")

     The Parties will instruct the Agents under the Escrow Agreement in
     accordance with lit. C.1 of the Escrow Agreement to pay the Escrow Funds
     (500,000 DM per Seller plus pro rata interest, minus pro rata fees, costs,
     charges and Agents' Indemnification Amounts),

     -    at 100% if no Buyer's Indemnification has been made prior to the
          Expiration Date;

     -    if a Buyer's Indemnification has been made prior to the Expiration
          Date, the Sellers and the Buyer agree to instruct the Agents to pay,
          if (x) a Buyer's Indemnification has been made against the Seller 1 -
          (ii) above - to Seller 1 an amount equal to the difference between
          such indemnification amount and DM 500,000 (plus pro rata interest,
          minus pro rata fees, charges, costs and Agents' Indemnification
          Amounts); (y) a Buyer's 

                                          7
<PAGE>

          Indemnification has been made against the Seller 2 - (iii) above -, an
          amount equal to the difference between such indemnification amount and
          DM 500,000 (plus pro rata interest, minus pro rata fees, charges,
          costs and Agents' Indemnification Amounts); and (z) a Buyer's
          Indemnification has been made against the Seller jointly - (i) above
          -, an amount equal to the difference between such indemnification
          amount and DM 1,000,000 (plus pro rata interest, minus pro rata fees,
          charges, costs and Agents' Indemnification Accounts), to each Seller
          at 50%.

     "Expiration Date" shall mean the earlier of  (i) an agreement among the
     Parties that no claims under Sections 7, 8 or 12 will be raised by the
     Buyer; (ii) a ruling of the appropriate arbitration panel or enforceable
     court ruling, to the same effect; and (iii) the day 15 months after the
     Closing Date.

     The Parties will give full force and effect to the above.  The Parties
     hereby commit not to take any action against any of the Agents (same for an
     instruction to replace them in accordance with the Escrow Agreement) other
     than as permitted expressly by the Escrow Agreement.  The Parties also
     commit to each other not to take enforcement actions against the Escrow
     Funds (Pfandungen), and hereby waive (verzichten) the right to attach any
     of the Escrow Funds (other than in accordance with a final arbitration
     ruling in accordance with the Arbitration Agreement provided for in Section
     16.2 or other decision of a competent court of law).

                                     Section  V.
                                     Cooperation
                                           
The Parties agree to participate in all business negotiations and legal
transactions which are necessary to fulfill this Agreement.  In particular, the
Parties will cooperate and use their best efforts in order that the Conditions
Precedent in Section 3.1 will be fulfilled.  The Seller 1, Seller 2 and the
Buyer shall apply in notarial form for the registration of the assignment of the
Sold Limited Partnership Interests (See Section 3.1c)), and procure that also
Terrafon GmbH joins the application.

Upon the Buyer's request Seller 2 and Geotek Communications will procure that a
fairness opinion by a mutually agreeable firm, confirming that the Purchase
Price is fair to Geotek Communications, will be provided to the Buyer, at the
Buyer's and Sellers' 50:50 expense, prior to the Closing Date.

                                     Section  VI.
                            Representations and Warranties
                                           
      A.  Sellers represent and warrant in the form of an independent guarantee
          (selbstandiges Garantieversprechen) to the Buyer that the following
          information is true, correct and complete:

           1.  As of today and the Closing Date:

          Terrafon KG is a limited partnership, duly established and duly
          existing according to the laws of the Federal Republic of Germany. 
          Terrafon GmbH is a limited liability company duly established and duly
          existing according to the laws of the Federal Republic of Germany. 
          The statements regarding Terrafon KG and Terrafon GmbH 

                                          8
<PAGE>

          made in clause 1, clause 2 and clauses 3, 5 and 6 of the Preamble are
          true, correct and complete.

           2.  The Terrafon Companies do not hold, either directly or
               indirectly, any interests in other companies, partnerships or
               businesses.  They have also no other corporate relationships with
               third parties.  This Agreement and its execution do not violate
               any agreement by which one of the Terrafon Companies is bound.

           3.  The Partnership Agreement of Terrafon KG dated June 12, 1997 and
               the Articles of Association of Terrafon GmbH dated March 19, 1997
               attached as Enclosure 3 remain unchanged and valid.  There are no
               supplementary or side agreements to these documents.  In
               particular, there are no subpartnership agreements, silent
               partnership agreements, or enterprise contracts in accordance
               with Section 291 ff of the Stock Corporation Act, or any similar
               agreements or liability bonds arising from terminated enterprise
               contracts.   The excerpts from the Commercial Register of the
               Lower Court of Essen for the Terrafon Companies as of October 28,
               1997 and October 29, 1997 are correct as enclosed and will remain
               the same until the Closing Date save for necessary registrations
               of changes in the management of the Terrafon Companies. 

           4.  The audited financial accounts of Terrafon KG (including the
               auditor's report) and the accounts of the Terrafon GmbH as of
               June 30, 1997, the copies of which are enclosed as Enclosure 4
               and Enclosure 5 (the "Terrafon Financial Accounts") have been
               prepared with the diligence of a prudent business man (Sorgfalt
               eines ordentlichen Kaufmannes); and the audited financial
               accounts of Terrafon KG (including auditor's report), (i) are in
               accordance with the German legal requirements as set forth in the
               relevant auditor's report, (ii) present, giving regard to
               applicable GAAP (Grundsatze ordnungsmabiger Buchfuhrung) a view
               corresponding to actual facts and circumstances as regards the
               net worth, financial position and results of each company
               (Section 322 HGB) as of June 30, 1997, recognizing that the
               auditor's certificate is dated October 30, 1997; and the
               declarations of completeness (Vollsabdigkeitserklarungen) are
               true and correct.  The Sellers confirm that the assessment of the
               equipment and fixed assets as mentioned in the auditor's report
               on page 27 of the Report section has been carried out and did not
               give rise to significant corrections.

          Each of the monthly management accounts of the Terrafon KG as of June
          30, July 31, August 31, September 30, October 31 and November 30, 1997
          which are enclosed as Enclosure 6 (i) have been prepared in good faith
          with the care of a prudent business man (Sorgfalt eines ordentlichen
          Kaufmannes) on a consistent basis; and (ii) no facts are known to the
          Sellers which render these accounts materially incorrect or
          misleading.

           5.  As of June 30, 1997 non of the Terrafon Companies had liabilities
               (including but not limited to uncertain liabilities), contingent
               liabilities (including but not limited to guarantee or product
               indemnity liabilities) or imminent losses from pending
               transactions, other than those which are included in the Terrafon
               Financial Accounts, or for which there are sufficient reserves in
               the Terrafon 

                                          9
<PAGE>

          Financial Accounts.

          The Terrafon Companies will have, as of the Closing Date, no
          shareholder loans or other indebtedness towards the shareholders, nor
          long term (i.e. payable 12 months or later) bank indebtedness, or
          indebtedness towards other financial institutions, other than current
          overdrafts not in excess of DM 100,000, and no other long term
          contractual debt in each case in excess of DM 200,000 which cannot be
          terminated without leaving payment obligations in excess of DM
          200,000, other than disclosed in Enclosure 7.

           6.  As of June 30, 1997 the Terrafon Companies assumed the pension
               payment obligations as set forth in Enclosure 8.  Since then, no
               subsequent pension commitments or promises have been made.

          Notwithstanding the above mentioned pension payment obligations no
          Terrafon Company has any direct or indirect obligations to pay any
          old-age pensions, invalidity pensions, sickness benefits, widow's
          benefits or similar benefits towards any present or former employees,
          independent of whether the rights of the employees to these
          obligations may be lapse or not.

           7.  The Terrafon Companies own no real estate (Grundbesitz), and hold
               no rights similar to real estate rights (usufruct rights), except
               for real estate rights to a piece of real estate registered in
               the Land Registry of Berlin-Kopenick folio 6127 N, marked 110515,
               plot 202, parcel 1.

           8.  Enclosure 9 to this Agreement contains a complete list of all
               employees of each Terrafon Company.  As of the Closing Date the
               Terrafon Companies will have no more than 78 employees.

           9.  With the exception of those mentioned in Enclosure 10, none of
               the Terrafon Companies is bound in any way by any shop
               agreements, or any other collective bargaining agreement, or shop
               practices (betriebliche Ubungen) (other than by what is customary
               in the industry).

           10. The Terrafon Companies hold the licenses granted by BMPT as
               listed in Enclosure 11 (the "Licenses") and have not been
               notified by any third party of a breach of third party industrial
               property rights or know-how necessary to conduct their business.
               The Licenses are valid, and will be valid and unrevoked, as of
               the Closing Date.  The Terrafon Companies are in compliance with
               the terms and conditions of the Licenses except for immaterial
               non-compliance.  Save for the acts required under this Agreement,
               the Sellers will refrain from any activities which could endanger
               the present status of the Licences.  The Terrafon Companies have
               not been notified of any challenges to the Licences.  The
               statements made in this subclause j) are subject to the changes
               in the Licenses required by the BMPT in connection with the
               implementation of this Agreement.

           11. The books and files of the Terrafon Companies have been kept and
               stored 

                                          10
<PAGE>

               correctly, and will remain at the disposal of the relevant
               company also after the Closing Date.

           12. As of October 31, 1997 the Terrafon Companies were in the
               possession of at least 142 base stations (Basistationen and
               Relaisstationen) and at least 903 channels.

           13. Terrafon KG has at least 38,200 Subscribers; the term
               "Subscriber" is defined as a Subscriber (Teilnehmer) booked in
               and invoiced in the month of December, 1997.  The average invoice
               per Subscriber will amount to DM 42 for the month of December
               1997 (excluding VAT).

           14. To the best knowledge and belief of the Sellers, the Terrafon
               Companies, their operations and their businesses are in
               compliance in all material respects with applicable laws and
               regulations.

           15. Except as disclosed in Enclosure 12 there is no litigation or
               administrative proceeding (Verwaltungsstreitverfahren) pending
               (rechtshangig) against the Terrafon Companies, and the management
               has not received any notice with regard to intended litigation or
               administrative proceedings against the Terrafon Companies.

           16. Except as listed in Enclosure 13, the Terrafon Companies are not
               a party to or bound by any of the following category or type of
               contracts or commitments:

                a.  joint venture, cooperation or similar agreements other than
                    listed in Annex A No. 7 of Enclosure 13;

                b.  any lease agreement other than listed in Annex A Nos. 1 and
                    2 of Enclosure 13 with respect to SMR Equipment which would
                    be in excess of a total commitment of DM 50,000 p.a. or DM
                    150,000 in total;

                c.  any lease agreement with respect to other equipment,
                    excluding car lease agreements in the ordinary course of
                    business, providing for an annual commitment in excess of DM
                    80,000 or a total commitment in excess of DM 200,000;

                d.  except for base stations and radio sites: any lease and
                    sublease agreement regarding premises (Grundstick und
                    R umlichkeiten) other than listed in Annex A Nos. 3 and 4 of
                    Enclosure 13 providing for annual rent payments in excess of
                    DM 60,000 (including side costs) or binding for a term
                    beyond December 31, 2002;

                e.  any material agreement, other than listed in Annex A Nos. 5
                    and 6 of Enclosure 13, regarding the purchase, maintenance
                    and service of SMR equipment and/or software in excess of
                    total payment obligations of DM 100,000;

                                          11
<PAGE>

                f.  any material agreement with customers, other than listed in
                    Annex A Nos. 8, 9 and 10 of Enclosure 13 with a commitment
                    to provide dedicated infrastructure and/or software which
                    would result in a financial investment in excess of DM
                    250,000 in total;

                g.  any roaming agreement which cannot be terminated at once;

                h.  any employment agreement with managing directors and key
                    employees other than Mr. Steinbeck, Mr. Munzel, Mr. Grumbach
                    and Mr. Kettermann;

                i.  any commitment to guarantee or to secure indebtedness of
                    third parties;

                j.  any loan to a managing director or any employee in excess of
                    DM 25,000;

                k.  any contracts or commitments other than referred to in the
                    foregoing clauses (i) through (x) which involve an expense
                    or commitment of more than DM 200,000 annually and any other
                    contracts or commitments of an exceptional nature which are
                    of particular importance to the Terrafon Companies.

     The Terrafon Companies have complied in all material respects with the
     agreements listed in Enclosure 13.

           17. As of signing, all accounts receivable of the Terrafon Companies
               which are reflected in their books represent actual bona fide
               obligations owing to them in the ordinary course of business.

           18. The Terrafon Companies own, possess or lease materially all
               assets necessary to conduct their business as presently
               conducted.

           19. The Terrafon Companies have not made any profit distributions
               since June 30, 1997, and have not declared any dividend or paid
               any interest on shareholder loans or repaid any shareholder loans
               since that date.  They will not make any profit distributions and
               not pay any dividend or pay any interest on shareholder loans or
               repay any shareholder loans until the Closing Date.

           20. Except as in the ordinary course of business, there are no
               agreements between the Terrafon Companies on the one side and any
               of the Sellers or any former shareholders/partner on the other
               side (including any affiliate or related party of such Sellers or
               former shareholder/partners) except as disclosed in Enclosure 14
               still in force, and no Seller or former shareholder/partner,
               including any affiliate or related party of such Seller or former
               shareholder/partner has any right or claim in or to any of the
               Terrafon Companies or their assets.

           21. Since June 30, 1997

                                          12
<PAGE>

          -    the Terrafon Companies have continued to conduct their respective
               business in a normal and ordinary fashion and consistent with
               past practice; and

          -    no changes or events (other than changes or events in the general
               economy or the business of SMR Operators in general) have
               occurred which had or reasonably can be expected to have a
               material adverse effect on the business of the Terrafon Companies
               or their operations or profitability or net worth.

      B.  Sellers represent and warrant (each with regard to the Sold Limited
          Partnership Interest, and the Sold Terrafon Share sold by it) to the
          Buyer in the form of an independent guarantee that the following
          information is true, correct and complete, and will be correct and
          complete as of the Closing Date:

     The limited partnership interests in Terrafon KG and the shares in Terrafon
     GmbH sold by Seller 1 and Seller 2, respectively, are fully paid up, and
     the contributions were not repaid to the partners/shareholders, and neither
     the limited partnership interest nor any limited partner is subject to
     assessment (Nachschu ).  Seller 1 and Seller 2, respectively, are the sole
     owners of the Sold Limited Partnership Interests and the Sold Terrafon
     Shares, and have unlimited power to sell and dispose of them.  The Sold
     Limited Partnership Interests and the Sold Terrafon Shares together with
     all other partner's/shareholders' rights associated with them are validly
     existing, free of pledges and any other rights of third parties pursuant to
     Sections 434 ff BGB.  Upon the transfer of the Sold Limited Partnership
     Interests and Sold Terrafon Shares, the Buyer will acquire the full and
     unlimited ownership of these.  The Sold Limited Partnership Interests and
     the Sold Terrafon Shares are not subject to any preemption rights, options
     or other acquisition rights of third parties.  This Agreement and its
     execution do not violate any agreements by which Seller 1 or Seller 2,
     respectively, is bound.


                                      Section 7
                Non-Compliance with the Representations and Warranties

7.1  Should any of the representations and warranties made by the Sellers in
     accordance with Section 6 prove either fully or partly to be incorrect, the
     relevant Seller making the representation, or warranting the fact has to
     put the Buyer in a position in which it would be, if the warranties and
     representations were correct by restoring the condition corresponding to
     the relevant representation and warranty (Wiederherstellungsanspruch). 
     Where the representations or warranties were made jointly, such obligation
     exists as a joint obligation of the Sellers, whereby financial obligations
     (monetary damages) are borne severally by the Sellers at 50% each.  A
     restoration claim by the Buyer can only be asserted within a period of 3
     months by written declaration (also by telefax) to the Sellers.  This time
     limit shall commence at the time when the management of the Buyer
     (Geschaftsfuhrung) is made aware of the facts which are the basis of such
     restoration claim.

     Sections 377, 378 HGB do not apply.

7.2  If the Sellers do not completely fulfill the restoration claim effectively
     asserted pursuant to Section 7.1 within one month following the receipt of
     the notice of the claim, the restoration claim will become invalid, and the
     Buyer will be entitled to monetary damages for the incorrect and 

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     unrestored representations and warranties.  Only direct damages of the
     Terrafon Companies or the Buyer, but no indirect damages (consequential
     damages), are to be compensated.


7.3  As far as the information provided for in Section 6 are based on the best
     knowledge and belief of the Sellers, the Sellers are only liable, if at
     least one of the Sellers had knowledge of the incorrectness or
     incompleteness, or, if the incorrectness or incompleteness remained unknown
     to one or more of them as a result of failure to apply the customary care. 
     The knowledge of the following persons shall be imputed upon both Sellers:
     Mr. Polk, Mr. Robb, Mr. Bibring, Mr. Zaboji, Mr. Schmidtkord, Mr. Poensgen,
     Dr. Fisseler, Messrs. Subrbier and Hettiger.

7.4  Claims for breach of the representations and warranties can be asserted by
     the Buyer only, if they exceed DM 100,000 individually.  Provided however
     that related claims under any particular representation and warranty clause
     (e.g. 6.1 a) or b) or c) and so forth) shall count as one individual claim.
     Claims for the breach of the representations and warranties in the amount
     of or more than DM 100,000 individually can only be asserted by the Buyer,
     if their aggregate amounts exceeds DM 500,000, in which case the entire
     amount can be claimed.  Representation or warranty claims are limited to a
     maximum amount of DM 10 million.  The special regulations for tax and
     public charges as included in Section 8 remain unaffected by the above
     limitation.

7.5  All claims for representations and warranties asserted by the Buyer become
     statute-barred after December 31, 1999.  This does not apply to claims made
     as a result of or in connection with taxes and other public charges
     (Section 8), for which a special clause is provided for under Section  8. 
     Furthermore, it does not apply to claims based on breach of representations
     and warranties for ownership free from rights of third parties in or to the
     Sold Interests, which shall expire within 8 (eight) years following the
     Closing Date.

7.6  The representations and warranties provided for by this Agreement shall be
     conclusive (abschlieBend).  No other representations or warranties, whether
     express or implied are being given by the Sellers.  In particular, claims
     based on theories of culpa in contrahendo, positive Forderungsverletzung,
     and the like are excluded.  The consequences for a breach of
     representations and warranties made by the Sellers in this Agreement are
     exclusively the remedies provided for by this Agreement.  In particular,
     the Buyer shall have no right to rescind, reverse or void the contract or
     demand anything else than monetary damages; if, however, any of the Sellers
     should fail to deliver proper title to the Sold Interests, the Buyer shall
     have the rights set forth in Section 320 pp. of the German Civil Code,
     after reasonable notice to the Seller.  All other rights in connection with
     express or implied representations and warranties are hereby excluded.

     Irrespective of the limitations in this Section 7 the Parties shall retain
     the rights under the concept of  "cessation of the basis for a business
     transaction" (Wegfall der Geschaftsgrundlage) developed by the German
     Federal Court of Justice (BGH) allowing for the adjustment or avoidance of
     the contract under very exceptional circumstances making it unbearable for
     a party (schlechthin unzumutbar) to adhere to a contract.

7.7  Claims under the representations and warranties shall be excluded if the
     facts giving rise to the relevant claims were disclosed to the Buyer in
     writing or the Buyer and its representations had knowledge of such facts at
     the time of the signing of this Agreement.

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<PAGE>

     The knowledge of the following persons shall be imputed upon the Buyer:
     Messrs. von Ribbentrop, Witte, Heck, Hoffmann, Lacroix, Stephan Oppenhoff,
     Selter, Kunz, Wohrle.


                                      Section 8
                      Tax Assessments, Audits and Public Changes

8.1  Sellers represent and warrant to the Buyer in the form of an independent
     guarantee that the following information is true, correct and complete.

     a)   as of today the Terrafon Companies submitted all tax declarations
          correctly and in time, and the tax declarations for 1996 will be
          submitted by February 28, 1998;

     b)   for all taxes (including but not limited to tax deductibles, accessory
          claims, interest and surcharges), contributions (including but not
          limited to social insurance contributions), and other public charges,
          which apply to the period up to and including the Effective Date, and
          which have not been fully paid up by that time, sufficient reserves
          have been made in the Terrafon Financial Accounts or will be made in
          the accounts as of the Effective Date;

     c)   in the period from 01.01.1997 up to and including Effective Date no
          tax liabilities accrued or will accrue for the Terrafon Companies,
          which are based on activities or lack of activities beyond the scope
          of the normal business activities (Handlungen und Unterlassungen) of
          the Terrafon Companies.  In particular, no legal transactions have
          been carried out or will be carried out within these periods which
          could be interpreted by the inland revenue office as being hidden
          profit distribution/withdrawals or hidden deposits;

     d)   as of today, there were tax inspections at the Terrafon Companies for
          the period between 1992 and 1994 and a VAT special inspection at
          Terrafon KG for the period from March until July 1997.  The results of
          these inspections are and have been taken into complete consideration
          in the Terrafon Financial Accounts.

8.2  The Buyer will inform the Sellers without delay, if the inland revenue
     office either announces or commences a tax inspection of the Terrafon
     Companies for the period up to and including December 31, 1997, and, if
     need be, up to and including the Closing Date.  The Buyer will give the
     Sellers and their advisers the opportunity to inform themselves about the
     progress of the tax inspection and to have direct contact with the tax
     officials, who are involved in the tax inspection.  The Sellers and their
     advisers are authorized to take part in all discussions, in particular, in
     the formal conclusive meeting and to express their opinions accordingly. 
     If no agreement can be reached with the inland revenue office, the Buyer is
     obliged to file an appeal against the tax-assessment notice, which concerns
     the personal taxes of the Sellers for the period up to and including
     December 31, 1997, and, if need be, up to and including the Closing Date,
     as advised by the Sellers and at their costs.  In case Buyer does not
     comply with this obligation, the Buyer has to indemnify the Sellers for
     their additional personal tax payment obligations resulting from such
     non-compliance.

8.3  In case the representations and warranties in Section 8.1 are untrue or
     incorrect or incomplete, the 

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<PAGE>

     Sellers are obliged to put the Buyer in a position in which it would be, if
     the representations and warranties were correct.  However, payments for tax
     arrears in the assessment period prior to and including 1997, based on a
     tax inspection of the corporate, trade, property, and value added tax of
     Terrafon GrabH, and the trade or value added tax of Terrafon KG can only be
     asserted if the individual amount of such payment or the aggregate amount
     of payments related to each other are in excess of DM 50,000 or more.

8.4  Claims which apply either directly or indirectly to taxes, contributions or
     other expenses in accordance with Section 8 for the period until the
     Effective Date, will become statute-barred 6 months after they became
     legally final and binding.


                                      Section 9
                          Period between Signing and Closing

9.1  Subject to Section 9.2 below, the Sellers undertake to cause the Terrafon
     Companies to conduct their business in a normal and ordinary fashion and
     consistent with past practice and to give the Buyer reasonable access to
     the Terrafon Companies and its management and employees.  The financial
     matters of the Terrafon Companies will be reviewed regularly (once a week)
     with a representative of the Buyer, who shall be currently informed by the
     Terrafon Companies.

9.2  The Sellers undertake to cause the Terrafon Companies from today's date up
     to and including the Closing Date not to enter into any agreement providing
     for a consideration of more than DM 25,000 if the consideration is paid on
     a nonrecurrent basis and of more than DM 10,000 a year if the consideration
     is paid on a recurrent basis without the prior written consent of the Buyer
     (except according to the agreed upon Business Plan).  Furthermore, Sellers
     undertake to cause the Terrafon Companies not to enter into any agreements
     or be involved in any business referred to or concerning matters referred
     to in 6.1.b), 6.1.c) 1st and 2nd sentence, 6.1.e), last para, 6.1.f),
     6.1.g), 6.1.i), 6.1.j), 6.1.I), 6.1.p) or 6.1.t) without the prior written
     consent of the Buyer.

9.3  Notwithstanding the obligations contained in Article 9.2 above, the Sellers
     undertake to inform the Buyer, and to seek the Buyer's prior written
     consent, with respect to the transactions subject to
     shareholders'/partners' approval in the Articles of Association/the
     Partnership Agreement of the Terrafon Companies.

9.4  The Buyer will make available to both Sellers not later than February 14,
     1998 audited accounts of the Terrafon Companies as of December 31, 1997,
     The Buyer will procure that the auditors of the Sellers will have access to
     all information necessary to review the audited accounts of the Terrafon
     Companies as of December 31, 1997.

9.5  Seller 1 and Geotek Communications commit to lend, at 50% each, by way of
     loan agreement providing for no interest or security (collateral), to be
     concluded between Seller 1 and Geotek Communications and Terrafon KG,
     sufficient amounts to Terrafon KG in order to meet the minimum funding
     requirements set out in the Business Plan enclosed as Enclosure 15 (the
     "Loan").  As of the Closing Date the Buyer hereby purchases the Loan so
     extended to Terrafon KG from the relevant leaden (50% each) at face value,
     and pay to them interest of 6% p.a. on the Loan from the date of funding,
     each Seller at 50% of such amount.  The relevant purchase 

                                          16
<PAGE>

     agreement will contain representations as regards existence (Bestand),
     assignability and documentation.

     The purchase price for the Loan shall become due and payable on the Closing
     Date, to the accounts of Seller 1 and Seller 2 (who shall receive the
     purchase price for the Loan for Geotek Communications) as designated in
     Section 4.3.1 and Section 4.3.2, respectively.


                                      Section 10
                           Geotek Communications Guarantee

If Seller 2 fails to perform any of its obligations pursuant to this Agreement,
Geotek Communications hereby unconditionally and irrevocably guarantees the
complete performance when due of all such obligations of Seller 2.  With respect
to payment obligations, Geotek Communications guarantees to make payment upon
first written demand of the Buyer stating that and to which extent Seller 2
failed to perform its payment obligations.


                                      Section 11
                                   Lease Guarantees

     11.1      RWE Telliance Aktiengesellschaft, Essen and Quante
               Aktiengesellschaft, Wuppertal have issued certain guarantees as
               listed in Enclosure 16 vis-a-vis various leasing companies
               ("Relevant Lessors"), to cover obligations of the Terrafon
               Companies under the leasing agreement with GEFA-Leasing AG dated
               December 28, 1993 and the leasing agreement with Deutsche Leasing
               AG dated July 12, 1993 (jointly referred to as the "Leasing
               Agreements"), and Geotek Communications has issued an indemnity
               as listed in Enclosure 17 vis-a-vis Quante Aktiengesllschaft
               (jointly referred to as the "Guarantees").  Buyer undertakes, but
               only if and when the Condition Precedent referred to in Section
               3.1a) has been fulfilled, either

          a)   to provide for the release of the Guarantees in the form of
               release declarations signed by the Relevant Lessors to be
               presented to the relevant guarantors, or

          b)   to provide for one or more bank guarantees of reputable banks or
               Sparkassen holding a European banking licence, to be issued in
               favor of the Relevant Lessors substantially in the form of
               Enclosure 18.


                                      Section 12
                             Channel Fees Indemnification

It is presently disputed between the Sellers and the Buyer. whether or not
Terrafon KG has overpaid certain channel fees provided for in the Annual
Financial Statements of Terrafon KG as of December 31, 1995 in the amount of DM
3,339,000 plus surcharge and interest, if any (the "1995 Overpaid Fees"), or was
or is obliged to pay channel fees for the period from January 1, 1996 through
July 31, 1996 in the amount of DM 2,972,878.35 plus surcharge and interest, if
any (the "1996 Fees").

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<PAGE>


It is hereby agreed between the Sellers and the Buyer that Terrafon KG leaves
all negotiations, and possible legal actions and defense against the assessment
of the 1995 Overpaid Few or the 1996 Fees ("Defense"), to the Sellers jointly in
the name of Terrafon KG.  All costs and expense in connection with the Defense
are to be borne by the Sellers.

In the event the 1995 Overpaid Fees will be recovered finally (endgultig) in
whole or in part by Terrafon KG, the Buyer agrees to pay 50% of the amount of
the recovered fees net of costs and expenses by way of an increase in the
Purchase Price to each Seller not later than 15 days following a final
settlement of the 1996 Fees.  In the event the 1996 Fees should become payable
following an indemnification Event, the Sellers, at 50% each, will pay to
Terrafon KG, the face amount of the 1996 Fees ("Channel Fee Indemnification")
first by an off-set with possible enforceable counter claims of Terrafon KG as
regards the 1995 Overpaid Fees, then by an instruction to the Agents (as defined
in the Escrow Agreement) to release all available ESCROW Funds to the Buyer to
the extent necessary to satisfy such claims, and if such ESCROW Funds should
prove insufficient, by direct payment to the BAPT.  In the event the 1996 Fees
should be recovered finally (endgultig) later in whole or in part, or in the
event that the 1995 Overpaid Fees should be recovered finally (endgultig) later
in whole or in put, the Buyer will pay to the Sellers (at 50% each) the relevant
amounts paid by them (or deemed paid by the Sellers) due to the Channel Fee
Indemnification (plus excess, if any, of the 1995 Overpaid Fees over the Channel
Fee Indemnification).  In the event an agreement should be reached between
Terrafon KG (represented by the Sellers), and the BAPT as regards the 1995
Overpaid Fees and the 1996 Fees, for instance by way of refund of the 1995
Overpaid Fees, and agreement to effect only a partial payment of the 1996 Fees,
the Channel Fee Indemnification shall be reduced by the amount recovered with
respect to the 1995 Overpaid Fees and any remaining balance shall be paid to the
Sellers.

     In any event, however, Terrafon KG or the Buyer may withhold payments due
to the Sellers under the foregoing provisions to the extent Terrafon KG's
liability for the 1996 Fees is still outstanding, provided that they shall pay
any withheld amounts to the Sellers, at 50% each, within 15 days from the date
they or any of them is no longer entitled to withhold the amounts.


                                      Section 13
                     Liability of the Sellers as Several Debtors

The Sellers have several, but no joint liability for all claims arising out of
and in connection with this Agreement and its execution as several debtors
(Section 420 BGB) unless expressly stated otherwise.


                                      Section 14
                          Secrecy; Non-Competition Covenants

14.1 Each Seller and Geotek Communication undertakes for a period of 5 years to
     keep strictly secret all matters and in particular all business and trade
     secrets of Terrafon KG or Terrafon GmbH known to it (and not being public
     knowledge) and not to disclose such matters and secrets, directly or
     indirectly, to any third party, nor to cause such disclosure by third
     parties (other than required by law or pursuant to regulatory
     requirements), nor to use such matters or seats for itself.

14.2 Each Seller and Geotek Communications undertakes for a period of 2 years
     from the day

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<PAGE>

     of this Agreement not to cause or influence any worker, employee, agent or
     adviser (excluding lawyers, certified public accountants and tax advisers)
     now or since January 1, 1997 employed or retained by Terrafon KG, Terrafon
     GmbH or the Buyer to work in any way whatsoever for it, for an enterprise
     in which it holds an interest, or for a competitor, or to terminate an
     existing relationship with Terrafon KG, Terrafon GmbH or the Buyer unless
     it has obtained the prior written consent of the Buyer.


14.3 Each Seller and Geotek Communications undertakes for a period of 5 years
     from the day of this Agreement not to provide SMR-services in Germany, nor
     to assist third parties, directly or indirectly, in the rendering of such
     services, nor to hold it any way whatsoever an interest in a company which
     renders such services.  Excluded from this restriction is the acquisition
     and holding for investment purposes of shares or convertible debentures of
     a company listed on a major stock exchange which is engaged in the
     rendering of such services, provided that the respective Seller does not
     acquire directly and/or indirectly shares or convertible debarittues which
     consist or can be converted to consist of more than 5% of the share capital
     of the respective company.


                                      Section 15
                                  Expenses and Taxes

15.1 Transfer taxes, notary fees and other public expenses which are incurred in
     connection with this Agreement and its execution, shall be borne by the
     Buyer.

15.2 Each party to this Agreement shall bear the fees of their own advisers
     (including the appointed accountants and auditors).


                                      Section 16
                              Law; Language, Arbitration

16.1 Solely, German substantive law shall apply.  This Agreement is executed in
     the English version. and only the English version shall apply.

16.2 The Parties agree on the Arbitration Agreement set forth in Enclosure 19.


                                      Section 17
                                  Final Regulations

17.1 Amendments and supplements to this Agreement including this Article have to
     be made in writing as long as no stricter form is required by law.  Oral
     agreements are excluded.

17.2 The Enclosures form an integral part of this Agreement.  The headings in
     this Agreement are only intended for better orientation within the text of
     the Agreement and have no significance for the interpretation of the
     contents of the Agreement.


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<PAGE>

17.3 The Parties may assign rights under this Agreement only to their respective
     affiliates within the meaning of Sections 15 ff. of the German Stock
     Corporation Act.

17.4 The right to set-off or withholding shall be excluded unless the relevant
     counterclaim is undisputed or adjudicated by final judgement or arbitration
     panel ruling.

17.5 Default interest (Verzugszinsen) for obligations under this Agreement shall
     be at least 10% p.a.  A showing of higher damages shall be permitted.


                                      Section 18
                                  Partial Invalidity

18.1 If any provision of this Agreement should, for any reason, become partly or
     completely invalid or impracticable (undurehfilhrbar), the remaining terms
     of the Agreement will retain their validity.  This also applies to an
     omission in the Agreement.  Instead of the invalid or impracticable term or
     in replacement of the omission, a suitable term should apply, which,
     provided it is legally possible, best meets the intent of the Parties, or
     their possible intent, if they had considered the issue before the
     execution of the Agreement taking into consideration the purpose of the
     Agreement.

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