January 15, 1998

Simmonds Capital Limited
1255 Yonge Street
Suite 1050
Toronto, Ontario
Canada

Attention:     MR. DAVID O'KELL

Dear Sirs:

Re:     SIMMONDS CAPITAL LIMITED & TRACKPOWER ("SCL")

Further to our letter of intent  dated  December  2, 1997,  the  purpose of this
letter is to  outline  the terms and  conditions  upon  which  American  Digital
Communications, Inc. a Wyoming corporation ("ADC" or the "Purchaser") has agreed
to  purchase  certain of the  assets of SCL (the  "Vendor")  and assume  certain
liabilities all on the terms and conditions as provided for herein.

1.      PURCHASE PRICE

1.1     Subject  to  the  terms  and  conditions  hereof,  and  based  upon  the
        representations  and warranties herein  contained,  the Vendor agrees to
        sell and the Purchaser  agrees to purchase on or before January 23, 1998
        (the  "Closing  Date")  the  assets  listed in  Schedule  1 hereto ( the
        "Purchased  Assets") together with the beneficial use of the MMDS assets
        (fixed and  subscriber  equipment and the related  license from Industry
        Canada) which are to be provided to Purchaser by a lease until such time
        as the  Purchaser  does not  require the use of the assets that is after
        the Purchaser has converted the MMDS  subscribers  to the next satellite
        service (the "MMDS Lease").

1.2     Subject to the terms and conditions hereof, the aggregate Purchase Price
        payable by the  Purchaser to the Vendor for the  Purchased  Assets to be
        paid and satisfied as follows:

        (a)    the Purchaser will issue to the Vendor U.S. $1,000,000 face value
               of convertible preferred shares convertible into 1,000,000 shares
               of ADC's common stock;

        (b)    the  Purchaser  will issue to the Vendor  warrants to purchase an
               additional 500,000 ADC common shares at an exercise price of U.S.
               $2. The warrants  will be  exercisable  in whole or in part until
               January 31, 2001.

        (c)    when the Purchaser's retained earnings position becomes positive,
               as determined in accordance  with generally  accepted  accounting
               principles  consistently  applied ("GAAP"),  but not before,  the
               Vendor  will  receive an amount  equal to 10% of the  Purchaser's
               annual EBITDA  (earnings  before  interest taxes  depreciaton and
               amortization  all as  determined  in  accordance  with  GAAP) and
               payable within 90 days of the Purchaser's  year end provided that
               such amount shall not exceed an





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               aggregate payment of U.S. $1,500,000. It is understood and agreed
               that this royalty payout is predicated on the Purchaser receiving
               dividend payments from TrackPower International Inc.; and

        (d)    the  Purchaser  will  assume U.S.  $300,000 of existing  accounts
               payable of the Vendor  listed in Schedule 2 and assume the leases
               identified  in  Schedule  1  hereto  and in each and  every  case
               indemnify the Vendor in respect thereof.

2.      REPRESENTATIONS AND WARRANTIES OF THE VENDOR

        By the Vendor's acceptance hereof, the Vendor represents and warrants as
        follows and hereby  acknowledges  and  confirms  that the  Purchaser  is
        relying on such  representations  and warranties in connection  with the
        purchase of the Purchased Assets:

2.1     All of the  Purchased  Assets are owned by the Vendor as the  beneficial
        owner thereof and the Vendor has good and marketable title thereto, free
        and clear of all mortgages, liens, charges, security interests,  adverse
        claims,  demands  and  encumbrances  whatsoever.  The  Purchased  Assets
        together  with the  beneficial  use of the MMDS assets to be provided by
        lease constitute all of the assets required by the Purchaser in order to
        continue  the  broadband  business  of  the  Vendor,  including  without
        limitation all rights to the trademark  "TrackPower",  but excluding the
        Canadian wireless spectrum business.

2.2     No person,  firm or corporation has any agreement or option or any right
        or privilege (whether pre-emptive or contractual) capable of becoming an
        agreement  for the  purchase  from the  Vendor  of any of the  Purchased
        Assets.

2.3     The  entering  into  of  this  agreement  and  the  consummation  of the
        transactions contemplated hereby will not result in the violation of the
        terms and  provisions  of any  agreement,  written or oral, to which the
        Vendor may be a party.

2.4     The Vendor is a resident of Canada within the meaning of the Income Tax 
        Act (Canada).

3.      SURVIVAL OF COVENANTS, REPRESENTATIONS AND WARRANTIES.

3.1     The covenants, representations and warranties of the Vendor contained in
        this agreement shall survive the closing of the purchase and sale of the
        Purchased Assets and,  notwithstanding  such closing,  shall continue in
        full force and effect until the first anniversary of the Closing Date.

4.      CLOSING ARRANGEMENTS.

4.1     The Closing shall take place on the Closing Date at 10:00 o'clock in the
        morning at the offices of the Vendor.




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4.2     The  obligation  of the  Purchaser  to close this  transaction  shall be
        conditional  upon the following  conditions  which are for the exclusive
        benefit  of the  Purchaser  (but  which may be waived by it in  writing)
        having been satisfied on or before Closing:

        (a)    the covenants, representations and warranties of the Vendor shall
               be true and correct on Closing;

        (b)    the board of directors of the  Purchaser  shall have approved the
               transaction.  It is  understood  that such approval is subject to
               the  completion of  satisfactory  due diligence and financial pro
               formas;

        (c)    all applicable  regulatory approvals shall have been received and
               there  shall  be  no  regulatory,   administrative   or  judicial
               proceedings  seeking to restrain or prevent the  consummation  of
               the transaction provided for herein;

        (d)    the Purchaser shall be satisfied with the  relationship  with The
               Ontario Jockey Club;

        (e)    the Purchaser  shall be satisfied  that the  employees  listed in
               Schedule 3 will be hired by the  Purchaser  and retained  under a
               minimum 12 month employment agreement;

        (f)    the Vendor shall have indemnified the Purchaser in respect of the
               Purchaser's   waiver  of  compliance  with  the  Bulk  Sales  Act
               (Ontario);

        (g)    the Vendor  shall have  executed  and  delivered  a transfer  and
               assignment  of the  TrackPower  trade mark in the form and on the
               terms of the draft  assignment  annexed  hereto as Schedule 4 and
               the MMDS Lease.

4.3     The  obligation  of the  Vendor  to  close  this  transaction  shall  be
        conditional  upon the following  conditions  which are for the exclusive
        benefit of the Vendor (but which may be waived by it in writing)  having
        been satisfied on or before Closing:

        (a)    the board of  directors  of the Vendor and its  secured  creditor
               shall have approved the  transaction.  It is understood that such
               approval  is  subject  to  the  completion  of  satisfactory  due
               diligence and financial pro formas;

        (b)    the board of  directors  and  officers  of the Vendor  will be as
               provided for in Schedule 5;

        (c)    the Purchaser shall have waived compliance with the provisions of
               the Bulk Sales Act (Ontario);

        (d)    the  Vendor  shall be  satisfied  that the  employees  listed  in
               Schedule 3 will be hired by the  Purchaser  and retained  under a
               minimum 12 month employment





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               agreement;  and the Vendor  will have no further  liability  with
               respect to such employees and furthermore  that the Purchaser has
               contracted  for services of the Vendor's  executive  who are also
               identified  in  Schedule 3 for the sum of $25,000 per month for a
               period of not less than 18 months after Closing; and

        (e)    the Purchaser has  established an employee  stock  incentive plan
               for key employees providing up to 1,100,000 options at a price of
               U.S. $0.40 per share with an effective date of September 8, 1997;
               and

        (f)    the  Purchaser  has agreed to  convert  the MMDS  subscribers  at
               Purchaser's  cost to the new satellite  service and indemnify the
               Vendor for any future claims or liabilities whatsoever.

5.      BOOKS AND RECORDS

5.1     On closing,  the Vendor will deliver to the Purchaser all books, records
        and  documents in its  possession  or under its control  relating to its
        broadband asset business including TrackPower.

6.      TIME OF THE ESSENCE

6.1 Time shall be of the essence hereof.

7.      BENEFIT AND BINDING NATURE OF AGREEMENT

7.1     This agreement shall be governed by and construed in accordance with the
        laws of the  Province  of  Ontario  and the  laws of  Canada  applicable
        therein  and  shall  enure to the  benefit  of and be  binding  upon the
        respective parties to the agreement and their respective  successors and
        assigns.

8.      ANNOUNCEMENTS.

8.1     Neither   party will make any disclosure of this  agreement  without the
        consent of  the other party.






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If the foregoing accurately reflects the terms of our agreement would you please
so indicate by dating and signing a copy of this letter and  returning it to the
sender.

Yours truly,

AMERICAN DIGITAL COMMUNICATIONS, INC.


Per:_____________________________________________
        R. Gene Klawetter, Chief Executive Officer



AGREED this                day of January, 1998.

SIMMONDS CAPITAL LIMITED


Per:_______________________________________
        John G. Simmonds, Chief Executive Officer