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 10, 2001
  
                          ADAPTIVE BROADBAND CORPORATION
              (Exact name of registrant as specified in its charter)
  
  
         Delaware                000-07428                  94-1668412
  (State of jurisdiction)  (Commission File No.) (IRS Employer Identification No.)
  
  
                               1143 BORREGAS AVENUE
                            SUNNYVALE, CALIFORNIA 94089
               (Address of principal executive offices and zip code)
  
  
  
         Registrant's telephone number, including area code: (408) 732-4000
  
  
                       -------------------------------------
  
  <PAGE>
  
  Item 5.  Other Events.
  
           On January 10, 2001, Adaptive Broadband Corporation ("Adaptive") and
  Western Multiplex Corporation ("Western") mutually agreed to terminate the
  Agreement of Merger and Reorganization, dated as of November 12, 2000, by and
  among Adaptive, Western and WA Merger Sub, Inc. The press release of Adaptive,
  dated January 11, 2001, entitled "Adaptive Broadband and Western Multiplex Agree
  to Call Off Merger, Citing Current Unfavorable Market Conditions" is attached
  hereto as Exhibit 99.1.
  
  Item 7.  Exhibits.
  
  
        99.1   Press Release by Adaptive Broadband Corporation, dated January 11,
               2001.
  
                                         1
  <PAGE>
  
                                     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, thereunto duly authorized.
  
  
                                      Adaptive Broadband Corporation
  
  
  Dated:  January 11, 2001            By:  /s/ Ken Wees
                                         ------------------------
                                           Ken Wees
                                           Vice President,
                                           General Counsel
                                           and Secretary
  
                                         2
  <PAGE>
  
                                 INDEX TO EXHIBITS
  
  
        99.1   Press Release by Adaptive Broadband Corporation, dated January 11,
               2001.
metadata_documents: [{"type": "8-K", "sequence": "1", "filename": "0001.txt", "description": "CURRENT REPORT", "secsgml_size_bytes": 2528}]
metadata_filer: {"company-data": {"conformed-name": "ADAPTIVE BROADBAND CORP", "cik": "0000016357", "assigned-sic": "3663", "irs-number": "941668412", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "000-07428", "film-number": "1507349"}, "business-address": {"street1": "1143 BORREGAS AVE", "city": "SUNNYVALE", "state": "CA", "zip": "94089", "phone": "4087324000"}, "mail-address": {"street1": "ADAPTIVE BROADBAND CORPORATION", "street2": "1143 BORREGAS AVE", "city": "SUNNYVALE", "state": "CA", "zip": "94089"}, "former-company": {"former-conformed-name": "CALIFORNIA MICROWAVE INC", "date-changed": "19920703"}}
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 10, 2001
  
                          ADAPTIVE BROADBAND CORPORATION
              (Exact name of registrant as specified in its charter)
  
         Delaware                000-07428                  94-1668412
  (State of jurisdiction)  (Commission File No.) (IRS Employer Identification No.)
  
                               1143 BORREGAS AVENUE
                            SUNNYVALE, CALIFORNIA 94089
               (Address of principal executive offices and zip code)
  
         Registrant's telephone number, including area code: (408) 732-4000
  
                       -------------------------------------
  Item 5.  Other Events.
  
           On January 10, 2001, Adaptive Broadband Corporation ("Adaptive") and
  Western Multiplex Corporation ("Western") mutually agreed to terminate the
  Agreement of Merger and Reorganization, dated as of November 12, 2000, by and
  among Adaptive, Western and WA Merger Sub, Inc. The press release of Adaptive,
  dated January 11, 2001, entitled "Adaptive Broadband and Western Multiplex Agree
  to Call Off Merger, Citing Current Unfavorable Market Conditions" is attached
  hereto as Exhibit 99.1.
  
  Item 7.  Exhibits.
  
        99.1   Press Release by Adaptive Broadband Corporation, dated January 11,
               2001.
  
                                         1
  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, thereunto duly authorized.
  
                                      Adaptive Broadband Corporation
  
  Dated:  January 11, 2001            By:  /s/ Ken Wees
                                         ------------------------
                                           Ken Wees
                                           Vice President,
                                           General Counsel
                                           and Secretary
  
                                         2
  INDEX TO EXHIBITS
  
        99.1   Press Release by Adaptive Broadband Corporation, dated January 11,
               2001.