Current Report

     Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

                Date of Report (Date of earliest event reported):
                      January 27, 2003 (January 27, 2003)

                           Trimble Navigation Limited
             (Exact name of registrant as specified in its charter)

                 (State or other jurisdiction of incorporation)

                            (Commission File Number)

                             (IRS Employer I.D. No.)
                         645 N. Mary Ave. Sunnyvale, CA
                    (Address of principal executive offices)

                                   (Zip Code)
       Registrant's telephone number, including area code: (408) 481-8000

Item 5. Other Events.

On January 27, 2003,  Trimble  Navigation  Limited,  a  California  corporation,
announced  revised  financial  guidance  for its fourth  fiscal  quarter  ending
January 3, 2003. A copy of the press  release dated January 27, 2003 relating to
this  announcement  is attached as Exhibit  99.1 and is  incorporated  into this
current report by reference.

      99.1 Text of Company Press Release dated January 27, 2003.


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.

                                            TRIMBLE NAVIGATION LIMITED
                                            a California corporation

Dated: January 27, 2003                     By: /s/ Mary Ellen Genovese
                                            Mary Ellen Genovese
                                            Chief Financial Officer

                                  EXHIBIT INDEX
                           Exhibit Number Description

99.1 Text of Company Press Release dated January 27, 2003.