content: <PAGE>
  
                        SECURITIES AND EXCHANGE COMMISSION
                              Washington, D.C.  20549
  
                                     Form 8-K
  
                                  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 11, 2001
  
                           Western Multiplex Corporation
  --------------------------------------------------------------------------------
              (Exact name of registrant as specified in its charter)
  
         Delaware                     000-30993              52-2198231
  --------------------------------------------------------------------------------
      (State or other                (Commission           (IRS Employee
      jurisdiction of                File Number)          Identification No.)
      incorporation)
  
                               1196 Borregas Avenue
                           Sunnyvale, California  94089
  --------------------------------------------------------------------------------
   (Address of principal executive offices)    (Zip Code)
  
  
            Registrant's telephone, including area code: (408) 542-5200
                                                         --------------
  
  
  --------------------------------------------------------------------------------
          (Former name and former address, if changed since last report)
  <PAGE>
  
  Item 5.   Other Events.
  
            On January 10, 2001, Western Multiplex Corporation ("Western")
  announced that Western and Adaptive Broadband Corporation ("Adaptive") have
  mutually agreed to terminate the Agreement and Plan of Merger among Western, WA
  Merger Sub, Inc., a wholly-owned subsidiary of Western, and Adaptive, dated as
  of November 12, 2000.  The Board of Directors of each of the two companies has
  determined that the transaction is not in the best interests of their respective
  stockholders at this time.
  
            Pursuant to the Termination Agreement, dated as of January 10, 2001
  (the "Termination Agreement"), the Merger Agreement and the reciprocal Stock
  Option Agreements entered into as of November 12, 2000 will be terminated
  immediately and Adaptive will reimburse Western $3 million for fees and expenses
  related to the terminated transaction.  A copy of the Press Release issued
  January 10, 2001 and the Termination Agreement are attached as Exhibits.
  
  Item 7.   Exhibits.
            ---------
  
  (a)  [Not applicable.]
  (b)  [Not applicable.]
  (c)  Exhibits.
  <PAGE>
  
       The exhibits listed below and in the accompanying Exhibit Index are filed
  as part of this Current Report on Form 8-K.
  
  EXHIBIT NO.         TITLE
  
  99.1           Termination Agreement, dated as of January 10, 2001, between
                 Western and Adaptive
  
  99.2           Press Release, dated January 10, 2001, announcing the
                 termination of the Agreement and Plan of Merger among Western,
                 Adaptive and Merger Sub
  
  
                                     SIGNATURE
                                     ---------
  
       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.
  
                                     WESTERN MULTIPLEX CORPORATION
                                           (Registrant)
  
  Dated: January 11, 2001            By /s/ Nancy Huber
                                       ---------------------------
                                       Nancy Huber
                                       Chief Financial Officer, Vice President,
                                       Finance and Secretary
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text: SECURITIES AND EXCHANGE COMMISSION
                              Washington, D.C.  20549
  
                                     Form 8-K
  
                                  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 11, 2001
  
                           Western Multiplex Corporation
  --------------------------------------------------------------------------------
              (Exact name of registrant as specified in its charter)
  
         Delaware                     000-30993              52-2198231
  --------------------------------------------------------------------------------
      (State or other                (Commission           (IRS Employee
      jurisdiction of                File Number)          Identification No.)
      incorporation)
  
                               1196 Borregas Avenue
                           Sunnyvale, California  94089
  --------------------------------------------------------------------------------
   (Address of principal executive offices)    (Zip Code)
  
            Registrant's telephone, including area code: (408) 542-5200
                                                         --------------
  
  --------------------------------------------------------------------------------
          (Former name and former address, if changed since last report)
  Item 5.   Other Events.
  
            On January 10, 2001, Western Multiplex Corporation ("Western")
  announced that Western and Adaptive Broadband Corporation ("Adaptive") have
  mutually agreed to terminate the Agreement and Plan of Merger among Western, WA
  Merger Sub, Inc., a wholly-owned subsidiary of Western, and Adaptive, dated as
  of November 12, 2000.  The Board of Directors of each of the two companies has
  determined that the transaction is not in the best interests of their respective
  stockholders at this time.
  
            Pursuant to the Termination Agreement, dated as of January 10, 2001
  (the "Termination Agreement"), the Merger Agreement and the reciprocal Stock
  Option Agreements entered into as of November 12, 2000 will be terminated
  immediately and Adaptive will reimburse Western $3 million for fees and expenses
  related to the terminated transaction.  A copy of the Press Release issued
  January 10, 2001 and the Termination Agreement are attached as Exhibits.
  
  Item 7.   Exhibits.
            ---------
  
  (a)  [Not applicable.]
  (b)  [Not applicable.]
  (c)  Exhibits.
  The exhibits listed below and in the accompanying Exhibit Index are filed
  as part of this Current Report on Form 8-K.
  
  EXHIBIT NO.         TITLE
  
  99.1           Termination Agreement, dated as of January 10, 2001, between
                 Western and Adaptive
  
  99.2           Press Release, dated January 10, 2001, announcing the
                 termination of the Agreement and Plan of Merger among Western,
                 Adaptive and Merger Sub
  
                                     SIGNATURE
                                     ---------
  
       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.
  
                                     WESTERN MULTIPLEX CORPORATION
                                           (Registrant)
  
  Dated: January 11, 2001            By /s/ Nancy Huber
                                       ---------------------------
                                       Nancy Huber
                                       Chief Financial Officer, Vice President,
                                       Finance and Secretary