NOTIFICATION OF LATE FILING         
                                                              
(Check One): [ ] Form 10-K  [ ] Form 20-F   [ ] Form 11-K     
             [X] Form 10-Q  [ ] Form N-SAR                    
                                                              
For Period Ended:  March 31, 1999 
                 ________________________                    
                                                              
                [ ] Transition Report on Form 10-K            
                [ ] Transition Report on Form 20-F            
                [ ] Transition Report on Form 11-K            
                [ ] Transition Report on Form 10-Q             +--------------+
                [ ] Transition Report on Form N-SAR            |  CUSIP No.   |
                                                               |  784776-10 6 |
For the Transition Period Ended: ____________________________  +--------------+

[ Read Instruction (on back page) Before Preparing Form. Please Print or Type. ]
   Nothing in this form shall be construed to imply that the Commission has 
                  verified any information contained herein.

If the notification relates to a portion of the filing checked above, identify 
the Item(s) to which the notification relates:

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PART I - REGISTRANT INFORMATION

STM WIRELESS, INC.
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Full Name of Registrant

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Former Name if Applicable 

One Mauchly
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Address of Principal Executive Office (Street and Number)

Irvine, California 92618
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City, State and Zip Code

PART II - RULES 12b-25(b) AND (c)

If the subject report could not be filed without unreasonable effort or expense 
and the registrant seeks relief pursuant to Rule 12b-25(b), the following should
be completed. (Check box if appropriate)

 [_] (a)  The reasons described in reasonable detail in Part III of this form 
          could not be eliminated without unreasonable effort or expense;
 [X] (b)  The subject annual report, semi-annual report, transition report on
          Form 10-K, Form 20-F, Form 11-K, Form N-SAR, or portion thereof, will
          be filed on or before the fifteenth calendar day following the
          prescribed due date; or the subject quarterly report or transition
          report on Form 10-Q, or portion thereof will be filed on or before the
          fifth calendar day following the prescribed due date; and
 [_] (c)  The accountant's statement or other exhibit required by Rule 
          12b-25(c) has been attached if applicable. 

PART III - NARRATIVE





 
State below in reasonable detail the reasons why Forms 10-K, 11-K, 10-Q, N-SAR
or the transition report or portion thereof could not be filed within the
prescribed time period.

The Company's Quarterly Report on Form 10-Q for the quarter ended March 31, 1999
could not be filed within the prescribed time period because the Company was 
unable, without unreasonalbe effort or expense, to finalize the Quarterly 
Report.

PART IV - OTHER INFORMATION

(1)  Name and telephone number of person to contact in regard to this 
     notification.

       Joseph Wallace                   (949)              753-7864
     ----------------------------    --------------    -------------------------
               (Name)                 (Area Code)         (Telephone Number)

(2)  Have all other periodic reports required under Section 13 or 15(d) of 
     the Securities Exchange Act of 1934 or Section 30 of the Investment Company
     Act of 1940 during the preceding 12 months or for such shorter period that
     the registrant was required to file such report(s) been filed? If answer is
     no, identify report(s).                                [X] Yes [ ] No
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(3)  Is it anticipated that any significant change in results of operations
     from the corresponding period for the last fiscal year will be reflected by
     the earnings statements to be included in the subject report or portion
     thereof?                                               [X] Yes  [ ] No

     If so, attach an explanation of the anticipated change, both narratively
     and quantitatively, and, if appropriate, state the reasons why a reasonable
     estimate of the results cannot be made.

     Reference is made to the press release issued by the Company today, in
     which the Company reported its results for the quarter ending March 31,
     1999.
================================================================================


          -----------------------------------------------------------
                 (Name of Registrant as Specified in Charter)

has caused this notification to be signed on its behalf by the undersigned 
hereunto duly authorized.

Date    May 17, 1999                   By /s/ JOSEPH WALLACE
    ------------------------------        --------------------------------------
                                          Joseph Wallace, Vice President
                                          Finance and Chief Financial Officer
                                          
INSTRUCTION:  The form may be signed by an executive officer of the registrant 
or by any other duly authorized representative.  The name and title of the 
person signing the form shall be typed or printed beneath the signature.  If the
statement is signed on behalf of the registrant by an authorized representative 
(other than an executive officer), evidence of the representative's authority to
sign on behalf of the registrant shall be filed with the form.