SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                  SCHEDULE 13G
                                 (RULE 13D-102)

             INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT
           TO RULES 13D-1(B) (C), AND (D) AND AMENDMENTS THERETO FILED
                            PURSUANT TO RULE 13D-2(B)

                               (AMENDMENT NO. 1)*

                               PARKERVISION, INC.
--------------------------------------------------------------------------------
                                (Name of Issuer)

                     COMMON STOCK, PAR VALUE $0.01 PER SHARE
--------------------------------------------------------------------------------
                         (Title of Class of Securities)

                                   701354-10-2
                               -------------------
                                 (CUSIP Number)

                              David J. FitzPatrick
                            Executive Vice President
                             Tyco International Ltd.
                         The Zurich Centre, Second Floor
                                90 Pitts Bay Road
                             Pembroke HM 08, Bermuda
                                 (441) 292-8674

                                 With a copy to:

                            Timothy E. Flanigan, Esq.
       Vice President and General Counsel, Corporate and International Law
                          Tyco International (US) Inc.
                            9 W. 57th St., 43rd floor
                               New York, NY 10019
                                 (212) 424-1300


                                 March 23, 2002
--------------------------------------------------------------------------------
             (Date of Event which Requires Filing of this Statement)


Check the appropriate box to designate the rule pursuant to which schedule is
filed:

         |_|  Rule 13d-1(b)
         |X|  Rule 13d-1(c)
         |_|  Rule 13d-1(d)

*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 on 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. 701354-10-2                                      Page 2 of 6 Pages
         ------------                                           --   --
--------------------------------                  -----------------------------

-------------------------------------------------------------------------------
  1. Names of Reporting Persons
     I.R.S. Identification Nos. of above persons (entities only)

     Tyco International Ltd.
-------------------------------------------------------------------------------
  2. Check the Appropriate Box if a Member of a Group*

                                                                       (a)  / /
     Not applicable                                                    (b)  / /
-------------------------------------------------------------------------------
  3. SEC Use Only



-------------------------------------------------------------------------------
  4. Citizenship or Place of Organization


  Bermuda
-------------------------------------------------------------------------------
NUMBER OF SHARES           5. Sole Voting Power
BENEFICIALLY OWNED BY
EACH REPORTING PERSON      0
WITH                       ----------------------------------------------------
                           6. Shared Voting Power

                           1,058,950
                           ----------------------------------------------------
                           7. Sole Dispositive Power

                           0
                           ----------------------------------------------------
                           8. Shared Dispositive Power

                           1,058,950
-------------------------------------------------------------------------------
 9. Aggregate Amount Beneficially Owned by Each Reporting Person

 1,058,950
-------------------------------------------------------------------------------
10. Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See
     Instructions)  / /


-------------------------------------------------------------------------------
11. Percent of Class Represented by Amount in Row (9)


    7.3%
-------------------------------------------------------------------------------
12. Type of Reporting Person (See Instructions)

    CO
-------------------------------------------------------------------------------
                   *SEE INSTRUCTIONS BEFORE FILLING OUT!

                                      2



--------------------------------                 ------------------------------
CUSIP NO. 701354-10-2                                      Page 3 of 6 Pages
         ------------                                           --   --
--------------------------------                  -----------------------------

-------------------------------------------------------------------------------
  1. Names of Reporting Persons
     I.R.S. Identification Nos. of above persons (entities only)

     Tyco Sigma Limited
-------------------------------------------------------------------------------
  2. Check the Appropriate Box if a Member of a Group*

                                                                       (a)  / /
     Not applicable                                                    (b)  / /
-------------------------------------------------------------------------------
  3. SEC Use Only



-------------------------------------------------------------------------------
  4. Citizenship or Place of Organization


  Bermuda
-------------------------------------------------------------------------------
NUMBER OF SHARES           5. Sole Voting Power
BENEFICIALLY OWNED BY
EACH REPORTING PERSON      0
WITH                       ----------------------------------------------------
                           6. Shared Voting Power

                           1,058,950
                           ----------------------------------------------------
                           7. Sole Dispositive Power

                           0
                           ----------------------------------------------------
                           8. Shared Dispositive Power

                           1,058,950
-------------------------------------------------------------------------------
 9. Aggregate Amount Beneficially Owned by Each Reporting Person

 1,058,950
-------------------------------------------------------------------------------
10. Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See
     Instructions)  / /


-------------------------------------------------------------------------------
11. Percent of Class Represented by Amount in Row (9)


    7.3%
-------------------------------------------------------------------------------
12. Type of Reporting Person (See Instructions)

    CO
-------------------------------------------------------------------------------
                   *SEE INSTRUCTIONS BEFORE FILLING OUT!

                                       3



ITEM 1.       NAME OF ISSUER

(a)      ParkerVision, Inc.

(b)      8493 Baymeadows Way, Jacksonville, FL 32256

ITEM 2.       PERSON FILING

(a)   Tyco International Ltd.             (a)   Tyco Sigma Limited
(b)   The Zurich Centre, Second Floor     (b)   The Zurich Centre, Second Floor
      90 Pitts Bay Road                          90 Pitts Bay Road
      Pembroke HM 08, Bermuda                    Pembroke HM 08, Bermuda
(c)   Bermuda                              (c)   Bermuda
(d)   See cover page                       (d)   See cover page
(e)   See cover page                       (e)   See cover page

ITEM 3. IF THIS STATEMENT IS FILED PURSUANT TO RULE 13D-1(B), OR 13D-2(B) OR
(C), CHECK WHETHER THE PERSON FILING IS A:

(a)  [  ]    Broker or dealer registered under Section 15 of the Exchange Act;

(b)  [  ]    Bank as defined in Section 3(a)(6) of the Exchange Act;

(c)  [  ]    Insurance Company as defined in Section 3(a)(19) of the Exchange
             Act;

(d)  [  ]    Investment Company registered under Section 8 of the Investment
             Company Act;

(e)  [  ]    Investment Adviser in accordance with Rule 13d-1(b)(1)(ii)(E);

(f)  [  ]    Employee benefit plan or endowment fund in accordance with
             Rule 13d-1(b)(1)(ii)(F);

(g)  [  ]    A parent holding company or control person in accordance with
             Rule 13d-1(b)(ii)(G);

(h)  [  ]    A savings association as defined in Section 3(b) of the Federal
             Deposit Insurance Act;

(i)          [ ] A church plan that is excluded from the definition of an
             investment company under Section 3(c)(14) of the Investment Company
             Act;

(j)  [  ]    Group, in accordance with Rule 13d-1(b)(1)(ii)(J).

ITEM 4.       OWNERSHIP

(a)  See Row 9 on Page 2.

(b)  See Row 11 on Page 2.

                                       4



(c)  Tyco International Ltd. has shared voting and dispositive power with
respect to 1,058,950 shares of Common Stock.  Tyco International Ltd. shares
voting and dispositive power with Tyco Sigma Limited, its wholly-owned
subsidiary, as to all such shares.

ITEM 5.      OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS

If this statement is being filed to report the fact that as of the date hereof
the reporting person has ceased to be the beneficial owner of more than five
percent of the class of securities, check the following [ ].

ITEM 6.      OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON
             ---------------------------------------------------------------

Not applicable.


ITEM 7.      IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH ACQUIRED
             THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING COMPANY OR
             CONTROL PERSON
             ------------------------------------------------------------------

Not applicable.

ITEM 8.      IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP

Not applicable.

ITEM 9.      NOTICE OF DISSOLUTION OF GROUP

Not applicable.

ITEM 10.     CERTIFICATION

By signing below I certify that, to the best of my knowledge and belief, the
securities referred to above were not acquired and are not held for the purpose
of or with the effect of changing or influencing the control of the issuer of
the securities and were not acquired and are not held in connection with or as a
participant in any transaction having that purpose or effect.

                                       5




                                    SIGNATURE

After reasonable inquiry and to the best of its knowledge and belief, the
undersigned certify that the information set forth in this Statement is true,
complete and correct.

Dated as of this 28th day of February, 2003.

TYCO INTERNATIONAL LTD.


By:            /S/ DAVID J. FITZPATRICK
      --------------------------------------------
      Name:    David J. FitzPatrick
      Title:   Executive Vice President and Chief Financial Officer



TYCO SIGMA LIMITED


By:            /S/ GLEN MISKIEWICZ
      ---------------------------------------------
      Name:    Glen Miskiewicz
      Title:   President and Director

                                       6