EXHIBIT 10.2 (a)

                      EMPLOYMENT AGREEMENT


This  Employment Agreement (the "Agreement") executed as of  July
7,  1998 (the "Execution Date") shall be effective as of July  8,
1998  (the "Effective Date") between ENERDYNE TECHNOLOGIES, INC.,
a  California corporation (the "Company"), having an address  for
notices  at  8402  Magnolia Avenue, Suite C,  Santee,  California
92071  and  IRENE SHINSATO ("Employee"), having  an  address  for
notices  at 6741 Avenida Manana, La Jolla, California 93027,  who
agree in connection with the acquisition of Enerdyne by Boatracs,
Inc. ("Boatracs") as follows:

     1.     Hiring.  The Company hereby hires Employee, and Employee
hereby agrees to serve the Company as President on and after  the
Effective Date.

      2.   Duties.   Employee  shall  faithfully  and  diligently
perform  the following duties on a full-time basis:  (a) devoting
Employee's entire productive time, ability and attention  to  the
business of the Company; and (b) performing such other duties  as
the  board of directors of the Company (the "Board"), shall  from
time to time specify that are consistent with the duties normally
performed by an employee in Employee's position.

     3.  Base Compensation.
     
          3.1.      Employee's    base    compensation     ("Base
Compensation") under this Agreement shall be $120,000  per  year.
The  Base  Compensation shall be payable bi-weekly, in accordance
with  and  at  the  same times as the Company's ordinary  payroll
procedures.
          
          3.2.      Employee shall receive an option to purchase
500,000 shares of the common stock of Boatracs in accordance with
the form of option agreement attached hereto as Exhibit A.
     
     
     4.    Benefits.  Employee shall be entitled to the following
benefits from the Effective Date to the expiration of the term of
this Agreement:

          4.1.   Twenty (20) business days paid vacation for each
one-year  period during the term of this Agreement (prorated  for
any  partial year), to be taken at such times that are consistent
with  Employee's  performance  of Employee's  duties  under  this
Agreement.

          4.2.   Reimbursement for reasonable expenses, including
reasonable  and  customary automobile expenses, incurred  in  the
proper performance of Employee's duties under this Agreement  and
in accordance with the Company's policy.

          4.3.   Inclusion in the Company's medical plan for  the
Company's other employees.

          4.4.  All customary and usual fringe benefits generally
available  to  officers of Enerdyne or Boatracs  with  comparable
levels   of   responsibility.   Notwithstanding   the   preceding
sentence, Enerdyne reserves the right to change or terminate  the
fringe  benefits  on a prospective basis, at any time,  effective
upon  delivery  of  5  days  written notice  to  Employee.   Upon
Employee's termination of employment under this Agreement for any
reason,  Employee  shall  be  entitled  only  to  receive  fringe
benefits prorated to the date of termination..

     5.   Termination.   This Agreement shall  terminate  on  the
earlier  of (a) the first anniversary of the Effective  Date,  or
(b)  the termination of Employee's service as an employee of  the
Company.   In  addition, at any time that Good Cause (as  defined
below)  exists  or has arisen, the Company may, at its  election,
terminate this Agreement upon 3 days written notice. For purposes
of  this  Agreement,  "Good Cause" shall mean  the  existence  or
occurrence of any of the following:

          5.1.  Any neglect or breach of duty by Employee, or any
failure by Employee to perform, to the reasonable satisfaction of
the  board  of directors of the Company, such duties  as  may  be
delegated to Employee by the Company from time to time.

          5.2.  If Employee is convicted of a felony.
          
          5.3.  If Employee commits theft, larceny, embezzlement,
fraud,  any  acts of dishonesty, illegality, moral  turpitude  or
gross mismanagement, as determined in good faith by the board  of
directors of the Company, whose determination shall be final  and
binding.

          5.4.   If  Employee otherwise materially and repeatedly
breaches any provision of this Agreement.

          5.5.   If Employee becomes materially disabled to  such
an  extent that Employee is precluded from performing the  duties
set  forth  in this Agreement for a period of six (6)  months  or
more.

     6.    Representations  and  Warranties.    Employee   hereby
represents and warrants that as of the Execution Date:  (a)  this
Agreement  will  not  cause or require  Employee  to  breach  any
obligation to, or agreement or confidence with, any other person;
(b)  except  as disclosed in writing by Employee to  the  Company
prior  to  the  execution  of  this Agreement,  Employee  is  not
representing, or otherwise affiliated in any capacity  with,  any
other  lines  of  products, manufacturers  or  vendors;  and  (c)
Employee has not been induced to enter into this Agreement by any
promise  or representation other than as expressly set  forth  in
this Agreement.

     7.   Confidentiality.  Employee hereby acknowledges that the
Company  has  made  (or may make) available to  Employee  certain
customer lists, product design information, performance standards
and  other  confidential and/or proprietary  information  of  the
Company  or licensed to the Company, including without limitation
trade secrets, copyrighted materials and/or financial information
of  the  Company  (or  any of its affiliates)  including  without
limitation  financial statements, reports and data (collectively,
the  "Confidential Material").  Except as essential to Employee's
obligations under this Agreement, neither Employee nor any agent,
employee,  officer, or independent contractor of or  retained  by
Employee  shall make any disclosure of the Confidential Material.
Unless  the terms of this Agreement have been publicly  disclosed
by  the   Company or Boatracs, neither Employee nor any agent  of
Employee shall make any disclosure of this Agreement or its terms
except  a description of the term of this Agreement or disclosure
to obtain tax or legal advice.  Except as essential to Employee's
obligations under this Agreement, neither Employee nor any agent,
employee,  officer, or independent contractor of or  retained  by
Employee shall make any duplication or other copy of any  of  the
Confidential  Material.   Immediately  upon  request   from   the
Company,  Employee shall return to the Company  all  Confidential
Material.   Employee  shall  notify  each  person  to  whom   any
disclosure  is  made that such disclosure is made in  confidence,
that  the  Confidential Material shall be kept in  confidence  by
such  person,  and  that  such  person  shall  be  bound  by  the
provisions of this Paragraph.

     8.    Proprietary   Information.   For  purposes   of   this
Agreement,  "Proprietary Information" shall mean any information,
observation,  data, written material, record, document,  computer
program,  software, firmware, invention, discovery,  improvement,
development,   tool,   machine,  apparatus,  appliance,   design,
promotional  idea,  customer  list, practice,  process,  formula,
method,  technique, trade secret, product and/or research related
to  the actual or anticipated (as demonstrated by contemporaneous
written  evidence) research, development, products, organization,
business  or  finances of the Company (or any of its affiliates).
As  used  herein, "Proprietary Information" does not include  (a)
any invention or intellectual property that qualifies fully under
the  provisions  of  California Labor Code Section  2870  or  any
similar or successor statute or (b) any invention or intellectual
property  relating to the categories of technology set  forth  on
Exhibit  B.   All  right, title and interest of  every  kind  and
nature  whatsoever  in and to the Proprietary  Information  made,
discussed,  developed, secured, obtained or learned  by  Employee
during   the  term  of  this  Agreement,  or  the  60-day  period
immediately following termination of this Agreement, shall be the
sole  and  exclusive property of the Company for any purposes  or
uses  whatsoever, and shall be disclosed promptly by Employee  to
the  Company.  The covenants set forth in the preceding  sentence
shall apply regardless of whether any Proprietary Information  is
made,   discovered,  developed,  secured,  obtained  or   learned
(a) solely or jointly with others, (b) during the usual hours  of
work or otherwise, (c) at the request and upon the suggestion  of
the  Company  or otherwise, or (d) with the Company's  materials,
tools,  instruments  or on the Company's premises  or  otherwise.
All   Proprietary   Information  developed,  created,   invented,
devised, conceived or discovered by Employee that are subject  to
copyright  protection are explicitly considered by  Employee  and
the Company to be works made for hire to the extent permitted  by
law.   Employee  hereby assigns to the Company all of  Employee's
right,  title and interest in and to the Proprietary Information.
Employee  hereby  forever  fully  releases  and  discharges   the
Company,  any  affiliates  of the Company  and  their  respective
officers, directors and employees, from and against any  and  all
claims,  demands,  damages, liabilities, costs  and  expenses  of
Employee   arising  out  of,  or  relating  to,  any  Proprietary
Information.  Employee shall execute any documents and  take  any
action   the  Company  may  deem  necessary  or  appropriate   to
effectuate  the  provisions of this Agreement, including  without
limitation  assisting the Company in obtaining and/or maintaining
patents,   copyrights  or  similar  rights  to  any   Proprietary
Information assigned to the Company, if the Company, in its  sole
discretion, requests such assistance.  Employee shall comply with
any reasonable rules established from time to time by the Company
for  the  protection  of the confidentiality of  any  Proprietary
Information.   Employee irrevocably appoints the Chief  Financial
Officer   of  the  Company  to  act  as  Employee's   agent   and
attorney-in-fact to perform all acts necessary to  obtain  and/or
maintain   patents,  copyrights  and  similar   rights   to   any
Proprietary Information assigned by Employee to the Company under
this Agreement if (a)  Employee refuses to perform those acts, or
(b)  is  unavailable, within the meaning of any applicable  laws.
Employee  acknowledges that the grant of the foregoing  power  of
attorney is coupled with an interest and shall survive the  death
or  disability of Employee.  Employee shall promptly disclose  to
the  Company, in confidence (a) all Proprietary Information  that
Employee creates during the term of this Agreement, and  (b)  all
patent  applications  filed by Employee  within  one  year  after
termination  of this Agreement.  Any application  for  a  patent,
copyright registration or similar right filed by Employee  within
one  year  after termination of this Agreement shall be  presumed
not  to  relate  to Proprietary Information created  by  Employee
during  the  term  of this Agreement, unless  Company  can  prove
otherwise.   Nothing  contained  in  this  Agreement   shall   be
construed  to  preclude the Company from exercising  all  of  its
rights  and privileges as sole and exclusive owner of all of  the
Proprietary Information owned by or assigned to the Company under
this  Agreement.   The  Company, in exercising  such  rights  and
privileges  with  respect to any particular item  of  Proprietary
Information, may decide not to file any patent application or any
copyright  registration  on  such  Proprietary  Information,  may
decide  to  maintain such Proprietary Information as  secret  and
confidential,   or   may  decide  to  abandon  such   Proprietary
Information or dedicate it to the public.  Employee shall have no
authority  to exercise any rights or privileges with  respect  to
the  Proprietary Information owned by or assigned to the  Company
under this Agreement.
     
     9.   Business  Opportunities.  Nothing in this Agreement  is
intended  to affect any common law obligations or any  duties  of
Employee  as  a  director or officer of the Company  to  offer  a
project,  investment, venture, business or other opportunity  (an
"Opportunity")  to  the Company or to use good-faith  efforts  to
cause  the  Company  to  have the opportunity  to  invest  in  or
participate in such Opportunity.

     10.  Successors and Assigns.  The rights and obligations of
Enerdyne under this Agreement shall inure to the benefit of and
shall be binding upon the successors and assigns of Enerdyne.
Employee shall not be entitled to assign any of Employee' rights
or obligations under this Agreement.

     11.    Survival.    The  representations,   warranties   and
covenants  of  Employee in this Agreement  (including  those  set
forth  in Sections 6, 7, and 8) shall survive any termination  of
this Agreement.

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

     13.  Further Assurances.  Each party to this Agreement shall
execute all instruments and documents and take all actions as may
be reasonably required to effectuate this Agreement.

     14.   Venue  and Jurisdiction.  For purposes  of  venue  and
jurisdiction,  this  Agreement shall be deemed  made  and  to  be
performed in the City of San Diego, California.

     15.   Counterparts.   This  Agreement  may  be  executed  in
counterparts, each of which shall be deemed an original  and  all
of which together shall constitute one document.

     16.    Time  of  Essence.   Time  and  strict  and  punctual
performance are of the essence with respect to each provision  of
this Agreement.

     17.    Attorney's  Fees.   In  the  event  any   litigation,
arbitration,  mediation,  or other proceeding  ("Proceeding")  is
initiated  by  any  party(ies) against any  other  party(ies)  to
enforce, interpret or otherwise obtain judicial or quasi-judicial
relief   in   connection  with  this  Agreement,  the  prevailing
party(ies)  in such Proceeding shall be entitled to recover  from
the  unsuccessful  party(ies)  all costs,  expenses,  and  actual
attorney's  fees  relating to or arising out of  such  Proceeding
(whether  or not such Proceeding proceeds to judgment),  and  any
post-judgment   or   post-award  proceeding   including   without
limitation  one  to enforce any judgment or award resulting  from
any such Proceeding.  Any such judgment or award shall contain  a
specific  provision  for the recovery of  all  such  subsequently
incurred costs, expenses, and actual attorney's fees.

     18.  Modification.  This Agreement may be modified only by a
contract  in writing executed by the party(ies) to this Agreement
against whom enforcement of such modification is sought.

     19.   Headings.   The  headings of the  Paragraphs  of  this
Agreement have been included only for convenience, and shall  not
be  deemed in any manner to modify or limit any of the provisions
of this Agreement, or be used in any manner in the interpretation
of this Agreement.

     20.   Prior  Understandings.  This  Agreement  contains  the
entire  agreement  between the parties  to  this  Agreement  with
respect to the subject matter of this Agreement, is intended as a
final expression of such parties' agreement with respect to  such
terms  as  are  included  in this Agreement,  is  intended  as  a
complete  and exclusive statement of the terms of such agreement,
and  supersedes  all negotiations, stipulations,  understandings,
agreements, representations and warranties, if any, with  respect
to  such subject matter, which precede or accompany the execution
of this Agreement.

     21.   Interpretation.  Whenever the context so  requires  in
this Agreement, all words used in the singular shall be construed
to  have  been used in the plural (and vice versa),  each  gender
shall  be  construed to include any other genders, and  the  word
"person"  shall  be  construed to include  a  natural  person,  a
corporation, a firm, a partnership, a joint venture, a trust,  an
estate or any other entity.

     22.   Partial Invalidity.  Each provision of this  Agreement
shall be valid and enforceable to the fullest extent permitted by
law.   If  any provision of this Agreement or the application  of
such  provision  to  any  person or circumstance  shall,  to  any
extent,  be  invalid  or  unenforceable, the  remainder  of  this
Agreement,  or  the application of such provision to  persons  or
circumstances other than those as to which it is held invalid  or
unenforceable,  shall  not  be affected  by  such  invalidity  or
unenforceability,  unless such provision or such  application  of
such provision is essential to this Agreement.

     23.   Notices.  All notices or other communications required
or permitted to be given to a party to this Agreement shall be in
writing  and  shall  be personally delivered, sent  by  certified
mail,  postage prepaid, return receipt requested, or sent  by  an
overnight   express   courier  service  that   provides   written
confirmation  of delivery, to such party at its  address  as  set
forth  above  in  the introductory Paragraph of  this  Agreement.
Each  such  notice or other communication shall be deemed  given,
delivered and received upon its actual receipt, except that if it
is  sent by mail in accordance with this Paragraph, then it shall
be deemed given, delivered and received three days after the date
such  notice or other communication is deposited with the  United
States  Postal  Service in accordance with this  Paragraph.   Any
party  to  this  Agreement may give a notice of a change  of  its
address    to   the   other   party(ies)   to   this   Agreement.

     
     24.  Drafting Ambiguities.  Each party to this Agreement has
reviewed and revised this Agreement.  Each party to this
Agreement has had the opportunity to have such party's legal
counsel review and revise this Agreement.  The rule of
construction that any ambiguities are to be resolved against the
drafting party shall not be employed in the interpretation of
this Agreement or of any amendments or exhibits to this
Agreement.

     


ENERDYNE TECHNOLOGIES, INC., a California corporation



By:  /S/ JON GILBERT



/s/ IRENE SHINSATO
Irene Shinsato