STM WIRELESS INC
SC 13D, 1998-09-24
RADIO & TV BROADCASTING & COMMUNICATIONS EQUIPMENT
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     UNITED  STATES
     SECURITIES  AND  EXCHANGE  COMMISSION
     Washington,  D.C.  20549

     SCHEDULE  13D

     Under  the  Securities  Exchange  Act  of  1934
     (Amendment  No.  #__)

     STM  Wireless,  Inc.
          (Name  of  Issuer)

     Common  Shares,  $.001  par  value
     (Title  of  Class  of  Securities)

       784776106
          (CUSIP  Number)

          Dawson-Samberg Capital Management, Inc., 354 Pequot Ave.
         Southport, CT  06490  Attn: Amiel M. Peretz 203/254-0091
                             (Name,  Address  and  Telephone  Number of Person
                                  Authorized  to  Receive  Notices  and
Communications)

     September  17,  1998
          (Date  of  Event  which  Requires
     Filing  of  this  Statement)

If  the  filing  person  has  previously  filed a statement on Schedule 13G to
report  the  acquisition  which  is  the  subject of this Schedule 13D, and is
filing  this  schedule because of Rule 13d-1(b)(3) or (4), check the following
box  .

Check the following box if a fee is being paid with this statement __.  (A fee
is not required only if the reporting person:  (1) has a previous statement on
file  reporting beneficial ownership of more than five percent of the class of
securities  described  in  Item  1;  and (2) has filed no amendment subsequent
thereto reporting beneficial ownership of five percent or less of such class.)
 (See  Rule  13d-7.)

NOTE:    Six copies of this statement, including all exhibits, should be filed
with  the  Commission.  See Rule 13d-1(a) for other parties to whom copies are
to  be  sent.

*The remainder of this cover page shall be filled out for a reporting person's
initial  filing  on this form with respect to the subject class of securities,
and  for any subsequent amendment containing information which would alter the
disclosures  provided  in  a  prior  cover  page.

The  information  required  in  the  remainder of this cover page shall not be
deemed  to be "filed" for the purpose of Section 18 of the Securities Exchange
Act of 1934 ("Act") or otherwise subject to the liabilities of that section of
the  Act but shall be subject to all other provisions of the Act (however, see
the  Notes).

CUSIP  NO.  784776106
4


1          Name  of  Reporting  Person DAWSON-SAMBERG CAPITAL MANAGEMENT, INC.

     IRS  Identification  No.  of  Above  Person  06-1033494
2          Check  the  Appropriate  Box  if  a  Member  of  a  Group    (a)

      (b)
3          SEC  USE  ONLY

4          Source  of  Funds  00

5          Check  Box  if  Disclosure  of  Legal  Proceedings  is
     Required  Pursuant  to  Items  2(d)  or  2(e)

6          Citizenship  or  Place  of  Organization  CONNECTICUT

     7          Sole  Voting  Power  778,929

 NUMBER  OF
 SHARES
 BENEFICIALLY
 OWNED  BY  EACH
 REPORTING
 PERSON  WITH
     8          Shared  Voting  Power    0

     9          Sole  Dispositive  Power  778,929

     10          Shared  Dispositive  Power    0

11      Aggregate Amount Beneficially Owned by Each Reporting Person   778,929

12         Check Box if the Aggregate Amount in Row 11 Excludes Certain Shares

13          Percent  of  Class  Represented  by  Amount  in  Row  11  11.06%

14          Type  of  Reporting  Person  IA



<PAGE>

ITEM  1.    SECURITY  AND  ISSUER

     This  Statement  relates  to  the  Common  Stock,  $.001  par  value (the
"Shares"), of STM Wireless, Inc. (the "Company"), a Delaware corporation.  The
Company's  principal  executive  office  is  located  at  One Mauchly, Irvine,
California  92718-2305.

ITEM  2.    IDENTITY  AND  BACKGROUND

          This  statement  is being filed on behalf of Dawson-Samberg Capital
Management,  Inc.,  a  Connecticut  corporation (the "Reporting Person").  The
principal  business  of the Reporting Person, an investment adviser registered
under  the Investment Advisers Act of 1940, is to act as investment adviser to
certain  managed accounts.  The executive officers of the Reporting Person are
Messrs.  Jonathan  T. Dawson, Arthur J. Samberg, Daniel C. Benton and Amiel M.
Peretz,  the directors of the Reporting Person are Messrs. Dawson, Samberg and
Benton  and  Ms.  Sheila  Clancy, and the controlling shareholders are Messrs.
Dawson  and  Samberg  (collectively,  the  "Executive  Officers, Directors and
Controlling  Persons").  The  business address of the Reporting Person and the
Executive  Officers,  Directors  and Controlling Persons is 354 Pequot Avenue,
Southport,  CT  06490.

     Neither of the Reporting Person nor the Executive Officers, Directors and
Controlling  Persons  have,  during  the  last five years, been convicted in a
criminal  proceeding  (excluding  traffic violations or similar misdemeanors).

     Neither  of    the Reporting Person nor the Executive Officers, Directors
and  Controlling  Persons  have, during the last five years, been a party to a
civil  proceeding  of  a  judicial  or  administrative  body  of  competent
jurisdiction  which  resulted  in  a judgment, decree or final order enjoining
future  violations  of,  or  prohibiting  or  mandating  activities subject to
federal or state securities laws or finding any violation with respect to such
laws.    Each of the Executive Officers, Directors and the Controlling Persons
are  citizens  of  the  United  States.

ITEM  3.    SOURCE  AND  AMOUNT  OF  FUNDS  OR  OTHER  CONSIDERATION

     As  of  the  date  hereof,  the Reporting Person beneficially owns in the
aggregate  778,929  Shares  held by accounts for which it exercises investment
discretion  (the  "Accounts").    571,429  of  the  Shares were purchased in a
Private  Placement directly from the Company for $4,000,003.00 pursuant to the
Stock  Purchase  Agreement  dated  March  5,  1998  (the  "Stock  Purchase  
Agreement").   The additional 207,500 Shares were purchased in the open market
during  the  ordinary course of the Reporting Person's investment activities. 
The funds for the purchase of Shares held by all of the Accounts were obtained
from  the  contributions  of  their  various  partners/shareholders.


ITEM  4.    PURPOSE  OF  TRANSACTION

     The  acquisition  of the Shares described herein was made in the ordinary
course  of the Reporting Person's investment activities.  The Reporting Person
reserves  the  right to purchase additional Shares or to dispose of the Shares
in  the  open  market  or in privately negotiated transactions or in any other
lawful  manner in the future.  An employee of the Reporting Person was elected
to  serve on the Company's Board of Directors on September 17, 1998, resulting
in  this  filing.    The  Reporting Person reserves the right to take whatever
additional action with respect to the Accounts' holdings in the Company as the
Reporting  Person  deems  to  be  in  the  best  interest  of  such  Accounts.

<PAGE>


ITEM  5.    INTEREST  IN  SECURITIES  OF  THE  ISSUER

     As  of  the  date  hereof,  the Reporting Person beneficially owns in the
aggregate  778,929 Shares.  These Shares represent approximately 11.06% of the
7,042,204  Shares  that  the Reporting Person believes to be outstanding.  The
Reporting  Person  has  the  sole  power to vote, direct the vote, dispose and
direct  the  disposition  of  all  of  the  Shares.

     The  only  transaction  in  the Shares in the past sixty days was an open
market  purchase  by  the  Accounts  on  August 31, 1998 of 25,000 Shares at a
purchase  price  of  $4.50  per  Share.

ITEM  6.    CONTRACTS,  ARRANGEMENTS,  UNDERSTANDINGS  OR  RELATIONSHIPS WITH
RESPECT  TO  SECURITIES  OF  THE  ISSUER

       Pursuant to a Stock Purchase Agreement, the Company has agreed to file
with  the  Securities  and  Exchange  Commission  (the  "SEC")  a Registration
Statement on Form S-3 under the Securities Act for an offering to be made on a
continuous basis covering those Shares purchased by the Accounts directly from
the  Company.

ITEM  7.    MATERIAL  TO  BE  FILED  AS  EXHIBITS

     None.



     After  a  reasonable  inquiry and to the best of my knowledge and belief,
the  undersigned certifies that the information set forth in this statement is
true,  complete  and  correct.

September    24,  1998


Dawson-Samberg  Capital  Management,  Inc.


By:/s/        Amiel    M.  Peretz
   Amiel  M.  Peretz,  Chief  Operating  Officer


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