EXHIBIT 10.1
                               TRIMBLE NAVIGATION

                        1988 EMPLOYEE STOCK PURCHASE PLAN
                            (as amended May 5, 1998)


         The following  constitute the provisions of the Employee Stock Purchase
Plan of Trimble Navigation.

         1.  Purpose.  The  purpose of the Plan is to provide  employees  of the
Company and its Designated  Subsidiaries  with an opportunity to purchase Common
Stock of the Company through accumulated payroll deductions. It is the intention
of the Company to have the Plan qualify as an  "Employee  Stock  Purchase  Plan"
under  Section  423 of the  Internal  Revenue  Code of  1986,  as  amended.  The
provisions  of the Plan shall,  accordingly,  be  construed  so as to extend and
limit participation in a manner consistent with the requirements of that section
of the Code.

         2.       Definitions.

                  (a) "Board" shall mean the Board of Directors of the Company.

                  (b) "Code"  shall mean the Internal  Revenue Code of 1986,  as
                       amended.

                  (c) "Common Stock" shall mean the Common Stock of the Company.

                  (d) "Company" shall mean Trimble Navigation.

                  (e) "Compensation"  shall mean all regular straight time gross
earnings, commissions,  incentive bonuses, overtime, shift premium, lead pay and
other similar compensation, but excluding automobile allowances,  relocation and
other non-cash  compensation.  Notwithstanding  the foregoing,  the Employee may
elect to exclude bonuses from the calculation of compensation.

                  (f) "Continuous  Status as an Employee" shall mean the absence
of any interruption or termination of service as an Employee.  Continuous Status
as an Employee  shall not be  considered  interrupted  in the case of a leave of
absence  agreed to in writing by the Company,  provided that such leave is for a
period  of not more than 90 days or  reemployment  upon the  expiration  of such
leave is guaranteed by contract or statute.

                  (g)  "Designated  Subsidiaries"  shall  mean the  Subsidiaries
which have been designated by the Board from time to time in its sole discretion
as eligible to participate in the Plan.

                  (h)  "Employee"  shall mean any person,  including an officer,
whose  customary  employment  with the Company is at least twenty (20) hours per
week by the Company or one of its Designated Subsidiaries and more than five (5)
months in any calendar year.

                  (i)  "Enrollment  Date"  shall  mean  the  first  day of  each
Offering Period.

                  (j)  "Exercise  Date" shall mean the last day of each Offering
Period.

                  (k) "Offering  Period" shall mean,  except with respect to the
first  Offering  Period as described  herein,  a period of six (6) months during
which  an  option  granted  pursuant  to the Plan may be  exercised.  The  first
Offering Period shall commence August 15, 1988, and end December 31, 1988.

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                  (l)      "Plan"  shall mean this Employee Stock Purchase Plan.

                  (m)  "Subsidiary"  shall  mean  a  corporation,   domestic  or
foreign, of which not less than 50% of the voting shares are held by the Company
or a  Subsidiary,  whether or not such  corporation  now exists or is  hereafter
organized or acquired by the Company or a Subsidiary.

         3.       Eligibility.

                  (a) Any  Employee  as  defined  in  paragraph  2 who has  been
continuously employed by the Company for at least two (2) consecutive months and
who  shall be  employed  by the  Company  on a given  Enrollment  Date  shall be
eligible to participate in the Plan. However, notwithstanding the foregoing, for
purposes of the first Offering Period only, any Employee  defined in paragraph 2
who was  employed  by the  Company  as of August 9, 1988  shall be  eligible  to
participate in the Plan.

                  (b)   Any   provisions   of   the   Plan   to   the   contrary
notwithstanding,  no Employee  shall be granted an option under the Plan (i) if,
immediately  after the grant,  such  Employee  (or any other  person whose stock
would be  attributed to such  Employee  pursuant to Section  425(d) of the Code)
would own stock and/or hold  outstanding  options to purchase  stock  possessing
five  percent  (5%) or more of the total  combined  voting power or value of all
classes of stock of the Company or of any  subsidiary  of the  Company,  or (ii)
which  permits his or her rights to  purchase  stock  under all  employee  stock
purchase  plans of the  Company and its  subsidiaries  to accrue at a rate which
exceeds Twenty-Five Thousand Dollars ($25,000) worth of stock (determined at the
fair market  value of the shares at the time such  option is  granted)  for each
calendar year in which such option is outstanding at any time.

         4.  Offering  Periods.  The Plan shall be  implemented  by  consecutive
Offering Periods with a new Offering Period commencing on or about January 1 and
July 1 of each year;  provided,  however,  that the first Offering  Period shall
commence on or about August 15, 1988. The Plan shall continue  thereafter  until
terminated in accordance  with paragraph 19 hereof.  Subject to the  shareholder
approval  requirements  of  paragraph  19, the Board of Directors of the Company
shall have the power to change the duration of Offering  Periods with respect to
future  offerings  without  shareholder  approval if such change is announced at
least fifteen (15) days prior to the scheduled  beginning of the first  Offering
Period to be affected.

         5.       Participation.

                  (a) An eligible  Employee may become a participant in the Plan
by completing a subscription  agreement  authorizing  payroll  deductions in the
form of Exhibit A to this Plan and filing it with the Company's  payroll  office
at least five (5) business days prior to the applicable  Enrollment Date, unless
a later time for filing the  subscription  agreement is set by the Board for all
eligible Employees with respect to a given Offering Period.

                  (b) Payroll deductions for a participant shall commence on the
first payroll following the Enrollment Date and shall end on the last payroll in
the Offering  Period to which such  authorization  is applicable,  unless sooner
terminated by the participant as provided in paragraph 10.

         6.       Payroll Deductions.

                  (a) At the time a  participant  files his or her  subscription
agreement,  he or she shall elect to have payroll deductions made on each payday
during the Offering  Period in an amount not  exceeding ten percent (10%) of the
Compensation  which he receives on each payday during the Offering  Period,  and
the aggregate of such payroll  deductions  during the Offering  Period shall not
exceed ten percent (10%) of the participant's aggregate Compensation during said
Offering Period.

                                       10


                  (b) All payroll  deductions  made for a  participant  shall be
credited to his or her account  under the Plan. A  participant  may not make any
additional payments into such account.

                  (c) A participant may discontinue his or her  participation in
the Plan as provided in paragraph  10, or may decrease,  but not  increase,  the
rate of his or her payroll  deductions  during the Offering  Period  (within the
limitations  of Section  6(a)) by  completing  or filing  with the Company a new
subscription  agreement  authorizing  a change in payroll  deduction  rate.  The
change in rate shall be effective with the first full payroll  period  following
five (5)  business  days after the  Company's  receipt  of the new  subscription
agreement.  A  participant's  subscription  agreement shall remain in effect for
successive  Offering  Periods unless revised as provided herein or terminated as
provided in paragraph 10.

                  (d) Notwithstanding the foregoing,  to the extent necessary to
comply  with  Section  423(b)(8)  of the  Code  and  paragraph  3(b)  herein,  a
participant's  payroll deductions may be decreased to 0% at such time during any
Offering Period which is scheduled to end during the current  calendar year (the
"Current  Offering  Period") that the aggregate of all payroll  deductions which
were previously used to purchase stock under the Plan in a prior Offering Period
which ended during that  calendar year plus all payroll  deductions  accumulated
with respect to the Current  Offering Period equal $21,250.  Payroll  deductions
shall  recommence  at the  rate  provided  in  such  participant's  subscription
agreement at the  beginning of the first  Offering  Period which is scheduled to
end in the following  calendar  year,  unless  terminated by the  participant as
provided in paragraph 10.

         7.       Grant of Option.

                  (a) On the  Enrollment  Date of  each  Offering  Period,  each
eligible  Employee  participating  in such  Offering  Period shall be granted an
option to purchase on each  Exercise  Date during such  Offering  Period up to a
number of shares of the  Company's  Common  Stock  determined  by dividing  such
Employee's  payroll  deductions  accumulated  prior  to such  Exercise  Date and
retained in the  Participant's  account as of the Exercise  Date by the lower of
(i)  eighty-five  percent  (85%)  of the  fair  market  value  of a share of the
Company's Common Stock on the Enrollment Date or (ii) eighty-five  percent (85%)
of the  fair  market  value  of a share  of the  Company's  Common  Stock on the
Exercise  Date;  provided  that in no event shall an Employee  be  permitted  to
purchase during each Offering Period more than a number of shares  determined by
dividing  $12,500 by the fair market  value of a share of the  Company's  Common
Stock on the Enrollment  Date, and provided  further that such purchase shall be
subject to the limitations set forth in Section 3(b) and 12 hereof.  Exercise of
the option  shall occur as provided  in Section 8,  unless the  participant  has
withdrawn  pursuant  to  Section  10,  and  shall  expire on the last day of the
Offering  Period.  Fair market  value of a share of the  Company's  Common Stock
shall be determined as provided in Section 7(b) herein.

                  (b) The  option  price per share of the  shares  offered  in a
given Offering Period shall be the lower of: (i) 85% of the fair market value of
a share of the Common Stock of the Company on the  Enrollment  Date; or (ii) 85%
of the fair  market  value of a share of the Common  Stock of the Company on the
Exercise  Date.  The fair market value of the Company's  Common Stock on a given
date shall be determined by the Board in its discretion; provided, however, that
where there is a public market for the Common  Stock,  the fair market value per
share shall be the closing  price of the Common Stock for such date, as reported
by the NASDAQ  National  Market  System,  or, in the event the  Common  Stock is
listed on a stock exchange, the fair market value per share shall be the closing
price on such exchange on such date, as reported in the Wall Street Journal.

         8. Exercise of Option.  Unless a participant withdraws from the Plan as
provided in  paragraph  10 below,  his or her option for the  purchase of shares
will be exercised  automatically on the Exercise Date, and the maximum number of
full shares  subject to option shall be purchased  for such  participant  at the
applicable  option price with the accumulated  payroll  deductions in his or her
account.  No  fractional  shares will be  purchased  and any payroll  deductions


                                       11


accumulated  in a  participant's  account which are not used to purchase  shares
shall remain in the  participant's  account for the subsequent  Offering Period,
subject  to an  earlier  withdrawal  as  provided  in  paragraph  10.  During  a
participant's  lifetime,  a participant's option to purchase shares hereunder is
exercisable only by him or her.

         9.  Delivery.  Unless a  participant  makes an  election  to delay  the
issuance  of  Certificate   representing   purchased   shares,  as  promptly  as
practicable  after each Exercise Date on which a purchase of shares occurs,  the
Company shall arrange the delivery to each  participant,  as  appropriate,  of a
certificate  representing  the  shares  purchased  upon  exercise  of his or her
option.  A  participant  may make an  election  to delay the  issuance  of stock
certificates  representing  shares  purchased  under the Plan by giving  written
notice to the  Company  the form of  Exhibit D to this Plan.  Any such  election
shall  remain in effect until it is revoked by the  participant  or, if earlier,
upon the termination of the participant's  Continuous Status as an Employee. The
Company may limit the time or times  during which  participants  may revoke such
elections,  except that a participant shall automatically  receive a certificate
as soon as practicable  following termination of his or her Continuous Status as
an Employee and that participants  shall be given the opportunity to revoke such
elections at least once each calendar year.

         10.      Withdrawal; Termination of Employment.

                  (a) A  participant  may withdraw all but not less than all the
payroll  deductions  credited to his or her account and not yet used to exercise
his or her  option  under the Plan at any time by giving  written  notice to the
Company in the form of Exhibit B to this Plan. All of the participant's  payroll
deductions  credited  to his or her  account  will be  paid to such  participant
promptly after receipt of notice of withdrawal and such participant's option for
the Offering  Period will be  automatically  terminated,  and no further payroll
deductions  for the purchase of shares will be made during the Offering  Period.
If a participant withdraws from an Offering Period,  payroll deductions will not
resume at the beginning of the succeeding Offering Period unless the participant
delivers to the Company a new subscription agreement.

                  (b) Upon termination of the participant's Continuous Status as
an Employee prior to the Exercise Date for any reason,  including  retirement or
death, the payroll deductions credited to such participant's  account during the
Offering Period but not yet used to exercise the option will be returned to such
participant  or,  in the case of his or her  death,  to the  person  or  persons
entitled  thereto  under  paragraph  14, and such  participant's  option will be
automatically terminated.

                  (c) In the event an  Employee  fails to  remain in  Continuous
Status as an Employee  of the  Company  for at least  twenty (20) hours per week
during an Offering Period in which the Employee is a participant, he or she will
be deemed to have elected to withdraw  from the Plan and the payroll  deductions
credited to his or her account  will be  returned to such  participant  and such
participant's option terminated.

                  (d) A  participant's  withdrawal  from an Offering Period will
not have any effect upon his or her  eligibility  to  participate in any similar
plan which may  hereafter  be adopted by the Company or in  succeeding  Offering
Periods which commence after the  termination of the Offering  Period from which
the participant withdraws.

         11. Interest.  No interest shall accrue on the payroll  deductions of a
participant in the Plan.

         12.      Stock.

                  (a) The maximum number of shares of the Company's Common Stock
which shall be made available for sale under the Plan shall be 2,350,000 shares,
subject to adjustment upon changes in  capitalization of the Company as provided
in paragraph  18. If on a given  Exercise Date the number of shares with respect
to which options are to be exercised exceeds the number of shares then available

                                       12



under the Plan,  the  Company  shall  make a pro rata  allocation  of the shares
remaining  available for purchase in as uniform a manner as shall be practicable
and as it shall determine to be equitable.

                  (b) The  participant  will have no interest or voting right in
shares covered by his option until such option has been exercised.

                  (c) Shares to be  delivered  to a  participant  under the Plan
will  be  registered  in the  name  of the  participant  or in the  name  of the
participant and his or her spouse.

         13. Administration.  The Plan shall be administered by the Board of the
Company  or a  committee  of members of the Board  appointed  by the Board.  The
administration,  interpretation  or  application of the Plan by the Board or its
committee shall be final, conclusive and binding upon all participants.  Members
of the Board who are eligible  Employees  are  permitted to  participate  in the
Plan.

         14.      Designation of Beneficiary.

                  (a)  A  participant  may  file  a  written  designation  of  a
beneficiary   who  is  to  receive  any  shares  and  cash,  if  any,  from  the
participant's  account under the Plan in the event of such  participant's  death
subsequent  to an Exercise  Date on which the option is  exercised  but prior to
delivery to such participant of such shares and cash. In addition, a participant
may file a written  designation of a beneficiary who is to receive any cash from
the  participant's  account  under the Plan in the  event of such  participant's
death prior to exercise of the option.

                  (b) Such  designation  of  beneficiary  may be  changed by the
participant  at any time by  written  notice.  In the  event  of the  death of a
participant  and in the absence of a beneficiary  validly  designated  under the
Plan who is living at the time of such  participant's  death,  the Company shall
deliver such shares and/or cash to the executor or  administrator  of the estate
of the participant,  or if no such executor or administrator  has been appointed
(to the knowledge of the Company),  the Company, in its discretion,  may deliver
such  shares  and/or  cash to the  spouse  or to any one or more  dependents  or
relatives of the participant, or if no spouse, dependent or relative is known to
the Company, then to such other person as the Company may designate.

         15.   Transferability.   Neither  payroll  deductions   credited  to  a
participant's account nor any rights with regard to the exercise of an option or
to  receive  shares  under the Plan may be  assigned,  transferred,  pledged  or
otherwise  disposed of in any way (other  than by will,  the laws of descent and
distribution or as provided in paragraph 14 hereof) by the participant. Any such
attempt at assignment,  transfer,  pledge or other  disposition shall be without
effect,  except  that the  Company may treat such act as an election to withdraw
funds from an Offering Period in accordance with paragraph 10.

         16.  Use of  Funds.  All  payroll  deductions  received  or held by the
Company under the Plan may be used by the Company for any corporate purpose, and
the Company shall not be obligated to segregate such payroll deductions.

         17.   Reports.   Individual   accounts  will  be  maintained  for  each
participant  in the Plan.  Statements of account will be given to  participating
Employees  semi-annually  promptly following the Exercise Date, which statements
will set forth the amounts of payroll deductions,  the per share purchase price,
the number of shares purchased and the remaining cash balance, if any.

         18. Adjustments Upon Changes in Capitalization. Subject to any required
action by the shareholders of the Company,  the number of shares of Common Stock
covered by each option under the Plan which has not yet been  exercised  and the
number of shares of Common Stock which have been  authorized  for issuance under
the  Plan  but  have  not  yet  been  placed  under  option  (collectively,  the
"Reserves"),  as well as the price per share of  Common  Stock  covered  by each

                                       13



option under the Plan which has not yet been exercised, shall be proportionately
adjusted for any  increase or decrease in the number of issued  shares of Common
Stock  resulting  from a stock  split,  reverse  stock  split,  stock  dividend,
combination or  reclassification  of the Common Stock,  or any other increase or
decrease in the number of shares of Common  Stock  effected  without  receipt of
consideration  by  the  Company;  provided,  however,  that  conversion  of  any
convertible securities of the Company shall not be deemed to have been "effected
without receipt of  consideration".  Such adjustment shall be made by the Board,
whose  determination  in that respect  shall be final,  binding and  conclusive.
Except as expressly  provided herein, no issue by the Company of shares of stock
of any class, or securities convertible into shares of stock of any class, shall
affect,  and no adjustment by reason  thereof shall be made with respect to, the
number or price of shares of Common Stock subject to an option.

         In the event of the proposed dissolution or liquidation of the Company,
the Offering Period will terminate immediately prior to the consummation of such
proposed  action,  unless  otherwise  provided  by the Board.  In the event of a
proposed sale of all or substantially  all of the assets of the Company,  or the
merger of the Company with or into  another  corporation,  any Purchase  Periods
then in progress  shall be shortened  by setting a new  Exercise  Date (the "New
Exercise  Date") and any Offering  Periods then in progress shall end on the New
Exercise  Date.  The New Exercise Date shall be before the date of the Company's
proposed sale or merger. The Board shall notify each participant in writing,  at
least ten (10) business days prior to the New Exercise  Date,  that the Exercise
Date for the participant's  option has been changed to the New Exercise Date and
that the  participant's  option  shall  be  exercised  automatically  on the New
Exercise Date,  unless prior to such date the participant has withdrawn from the
Offering Period as provided in Section 10 hereof.

         19. Amendment or Termination. The Board of Directors of the Company may
at any time and for any reason  terminate or amend the Plan.  Except as provided
in paragraph 18, no such  termination  can affect  options  previously  granted,
provided that an Offering  Period may be terminated by the Board of Directors on
any Exercise Date if the Board determines that the termination of the Plan is in
the best  interests of the Company and its  shareholders.  Except as provided in
paragraph 18, no amendment may make any change in any option theretofore granted
which  adversely  affects the rights of any  participant.  In  addition,  to the
extent  necessary to comply with Section 423 of the Code (or any successor  rule
or provision  or any other  applicable  law or  regulation),  the Company  shall
obtain  shareholder  approval  in  such a  manner  and to  such a  degree  as so
required.

         20. Notices.  All notices or other  communications  by a participant to
the Company  under or in  connection  with the Plan shall be deemed to have been
duly given when  received in the form  specified by the Company at the location,
or by the person, designated by the Company for the receipt thereof.

         21. Shareholder  Approval.  Continuance of the Plan shall be subject to
approval by the shareholders of the Company within twelve months before or after
the date the Plan is adopted. Such shareholder approval shall be obtained in the
manner  and degree  required  under the  applicable  state and  federal  tax and
securities laws.

         22. Conditions Upon Issuance of Shares. Shares shall not be issued with
respect to an option  unless the  exercise of such option and the  issuance  and
delivery of such  shares  pursuant  thereto  shall  comply  with all  applicable
provisions  of law,  domestic or foreign,  including,  without  limitation,  the
Securities Act of 1933, as amended,  the Exchange Act, the rules and regulations
promulgated  thereunder,  and the  requirements of any stock exchange upon which
the shares may then be listed,  and shall be further  subject to the approval of
counsel for the Company with respect to such compliance.

                  As a condition to the  exercise of an option,  the Company may
require the person  exercising  such option to represent and warrant at the time
of any such exercise that the shares are being purchased only for investment and
without  any  present  intention  to sell or  distribute  such shares if, in the

                                       14



opinion of counsel for the Company,  such a representation is required by any of
the aforementioned applicable provisions of law.

         23. Term of Plan.  The Plan shall become  effective upon the earlier to
occur  of its  adoption  by the  Board  of  Directors  or  its  approval  by the
shareholders  of the Company as described in paragraph 21. It shall  continue in
effect for a term of twenty (20) years unless sooner  terminated under paragraph
19.



                                       15



                                    EXHIBIT A

                               TRIMBLE NAVIGATION

                          EMPLOYEE STOCK PURCHASE PLAN
                             SUBSCRIPTION AGREEMENT



_____ Original Application                         Enrollment Date: ___________
_____ Change in Payroll Deduction Rate
_____ Change of Beneficiary(ies)


1.       _________________________hereby  elects to  participate  in the Trimble
         Navigation  Employee  Stock  Purchase  Plan  (the  "Stock  Purchase 
         Plan")  and subscribes to purchase  shares of the Company's  Common 
         Stock in accordance with this Subscription Agreement and the Stock 
         Purchase Plan.

2.       I hereby authorize payroll  deductions from each paycheck in the amount
         of ____% of my  Compensation  on each payday (not to exceed 10%) during
         the Offering Period in accordance with the Stock Purchase Plan.

         ________ Include bonuses as part of Compensation subject to payroll 
         deduction.
         ________Exclude bonuses from Compensation subject to payroll deduction.

3.       I understand that said payroll  deductions shall be accumulated for the
         purchase of shares of Common  Stock at the  applicable  purchase  price
         determined in  accordance  with the Stock  Purchase  Plan. I understand
         that if I do not  withdraw  from an Offering  Period,  any  accumulated
         payroll deductions will be used to automatically exercise my option.

4.       I have  received a copy of the complete  "Trimble  Navigation  Employee
         Stock Purchase Plan." I understand that my  participation  in the Stock
         Purchase  Plan is in all  respects  subject to the terms of the Plan. I
         understand  that the grant of the  option  by the  Company  under  this
         Subscription  Agreement is subject to obtaining shareholder approval of
         the Stock Purchase Plan.

5.       Shares purchased for me under the Stock Purchase Plan should be issued
         in the name(s) of:________________________________________
       
6.       I  understand that if I dispose of any shares received by me  pursuant
         to the Plan  within 2 years  after the Enrollment Date (the first day
         of the Offering Period during which I purchased such shares), I will be
         treated for federal income tax purposes as having received  ordinary  
         income at the time of such disposition in an amount equal to the excess
         of the fair market  value of the shares at the time such shares  were 
         delivered  to me over the price which I paid for the shares.  I hereby
                                                                       -------- 
         agree to notify the Company in writing within 30 days after the date of
         -----------------------------------------------------
         any such  disposition.  However,  if I dispose of such  shares at any 
         ----------------------
         time after the  expiration  of the 2-year  holding
         ---------------------
         period,  I understand  that I will be treated for federal income tax 
         purposes as having received income only at the time of such 
         disposition, and that such income will be taxed as ordinary income only
         to the extent of an amount equal to the lesser of (1) the excess of the
         fair market value of the shares at the time of such  disposition  over
         the purchase price which I paid for the shares under the option, or (2)
         the excess of the fair market value of the shares over the option 
         price, measured as if the option had been  exercised on the  Enrollment
         Date. The remainder of the gain, if any, recognized on such disposition
         will be taxed as capital gain.

                                       16


7.       I hereby agree to be bound by the terms of the Stock Purchase Plan. The
         effectiveness  of this  Subscription  Agreement  is  dependent  upon my
         eligibility to participate in the Stock Purchase Plan.

8.       In the  event of my  death,  I hereby  designate  the  following  as my
         beneficiary(ies)  to receive all  payments  and shares due me under the
         Stock Purchase Plan:



                         --------------------------------------------------
NAME:  (Please print)    (First)         (Middle)               (Last)


- --------------------------------             ------------------------------ 
Relationship

                                             ------------------------------
                                              (Address)

                         --------------------------------------------------
NAME:  (Please print)    (First)         (Middle)               (Last)


- -------------------------------              -----------------------------
Relationship

                                             ----------------------------
                                              (Address)

Employee's Social
Security Number:                             ----------------------------


Employee's Address:                          ----------------------------
                                             
                                             ----------------------------

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


I UNDERSTAND THAT THIS SUBSCRIPTION  AGREEMENT SHALL REMAIN IN EFFECT THROUGHOUT
SUCCESSIVE OFFERING PERIODS UNLESS TERMINATED BY ME.


Dated: _____________________                    _____________________________
                                                Signature of Employee


                                       17



                                    EXHIBIT B

                               TRIMBLE NAVIGATION


                          EMPLOYEE STOCK PURCHASE PLAN

                              NOTICE OF WITHDRAWAL



         The  undersigned  participant  in the  Offering  Period of the  Trimble
Navigation Employee Stock Purchase Plan which began on ____________, 19____ (the
"Enrollment  Date") hereby notifies the Company that he or she hereby  withdraws
from the  Offering  Period.  He or she hereby  directs the Company to pay to the
undersigned as promptly as possible all the payroll  deductions  credited to his
or her account with respect to such Offering Period. The undersigned understands
and agrees that his or her option for such Offering Period will be automatically
terminated.   The  undersigned  understands  further  that  no  further  payroll
deductions  will be made for the  purchase  of  shares in the  current  Offering
Period and the  undersigned  shall be  eligible  to  participate  in  succeeding
Offering Periods only by delivering to the Company a new Subscription Agreement.

                                        Name and Address of Participant

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

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

                                        -------------------------------
                                        
                                        Signature

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



                                        Date:__________________________


                                       18





                                    EXHIBIT C

                               TRIMBLE NAVIGATION


                          EMPLOYEE STOCK PURCHASE PLAN

                       NOTICE TO RESUME PAYROLL DEDUCTIONS



         The  undersigned  participant  in the  Offering  Period of the  Trimble
Navigation  Employee  Stock Purchase Plan which began on  ______________,  19___
hereby notifies the Company to resume payroll  deductions for his or her account
at the  beginning of the next Exercise  Period  within such  Offering  Period in
accordance  with  the  terms  of  the  Subscription  Agreement  executed  by the
undersigned at the beginning of the Offering Period. The undersigned understands
that he or she may change the payroll deduction rate or the beneficiaries  named
in such Subscription Agreement by submitting a revised Subscription Agreement.


                                        Name and Address of Participant

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

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

                                        -------------------------------
                                        
                                        Signature

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



                                        Date:__________________________

                                                              

                                       19




                                    EXHIBIT D

                               TRIMBLE NAVIGATION


                          EMPLOYEE STOCK PURCHASE PLAN

                         ELECTION/REVOCATION OF ELECTION
                          DELAY ISSUANCE OF CERTIFICATE


         The  undersigned  participant in the 1988 Trimble  Navigation  Employee
Stock Purchase Plan (the "Stock Purchase Plan"),  hereby elects to allow Trimble
Navigation  (the  "Company")  or its agent to delay  issuance  of a  certificate
representing  shares  purchased under the Plan in accordance with the provisions
of the Stock  Purchase  Plan.  This election  shall continue in effect until the
termination  of the  undersigned's  Continuous  Status as an  Employee  or until
revoked  pursuant to such Stock Purchase Plan. This election shall not otherwise
affect the participant's rights as a shareholder of the Company.

                                      -OR-

         ____________________  hereby revokes his or her prior election to allow
the  Company to delay  issuance  of a  certificate  pursuant to the terms of the
Stock  Purchase  Plan.  The Company shall deliver to  participant as promptly as
practicable a certificate representing all shares purchased thereby.


                                                             
                                        Name and Address of Participant

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

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

                                        -------------------------------
                                        
                                        Signature

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



                                        Date:__________________________



                                       20