8-K

                      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):  March 20, 2001

                        ADAPTIVE BROADBAND CORPORATION
            (Exact name of registrant as specified in its charter)

                                   Delaware
                           (State of incorporation)

      000-7428                                            94-1668412
(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


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Item 5.  Other Events.

      Adaptive Broadband Corporation (the "Company") announced today that
several class action lawsuits have been filed against it and certain of its
former officers and directors alleging violations of federal securities laws in
connection with the Company's financial statements for the quarter ended June
30, 2000.  The Company's press release dated March 20, 2001, entitled "Lawsuits
Filed Against Adaptive Broadband(TM) and Certain Former Executive Officers," is
attached hereto as Exhibit 99.1.

Item 7.  Exhibits.

   99.1     Press Release, dated as of March 20, 2001, entitled "Lawsuits Filed
            Against Adaptive Broadband(TM) and Certain Former Executive
            Officers."


                                   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:  March 22, 2001              By:    /s/  Kenneth J. Wees
                                        ----------------------------------
                                           Kenneth J. Wees
                                           Vice President, General Counsel
                                           and Secretary


                               INDEX TO EXHIBITS

   99.1     Press Release, dated as of March 20, 2001, entitled "Lawsuits Filed
            Against Adaptive Broadband(TM) and Certain Former Executive
            Officers."

EX-99.1

                                                                    EXHIBIT 99.1

FOR IMMEDIATE RELEASE
Tuesday, March 20, 2001

                 LAWSUITS FILED AGAINST ADAPTIVE BROADBAND(TM)
                     AND CERTAIN FORMER EXECUTIVE OFFICERS

SUNNYVALE, CALIFORNIA - ADAPTIVE BROADBAND CORPORATION (Nasdaq National Market:
ADAP) announced that several lawsuits had been filed against it and certain of
- ----
its former executive officers in the United States District Court for The
Northern District of California. In each of the lawsuits, the plaintiffs seek to
assert claims on behalf of a class of all persons who purchased securities of
Adaptive Broadband between August 10, 2000, and March 15, 2001. The complaints
allege that Adaptive Broadband and certain of its former officers and directors
violated federal securities laws in connection with the company's fourth quarter
and fiscal year ended June 30, 2000. The company expects that all of the
lawsuits will eventually be consolidated into a single action, as is customary
in such cases.

On March 15, 2001, Adaptive Broadband announced that it expected to restate its
revenue and cost of revenue for the quarter ended June 30, 2000. The company
currently expects that its revenue and cost of revenue for the quarter will be
reduced by $4.0 million relating to a sales transaction recorded during the
quarter that the company now believes should not have been recognized.

Adaptive Broadband believes that the lawsuits are unjustified and that there
were no violations of any securities laws. The company indicated that it would
defend itself forcefully. Commenting on the lawsuits, Dr. Daniel L. Scharre,
Adaptive Broadband's chief executive officer, said, "We understand that in
today's litigation environment, lawsuits were bound to follow our March 15
announcement. We firmly believe, however, that these suits are groundless."

About Adaptive Broadband
Adaptive Broadband (www.adaptivebroadband.com) is a data networking solutions
                    -------------------------
company that is developing leading-edge technology for the deployment of
broadband wireless communication over the Internet. Its AB-Access fixed wireless
broadband platform bridges the last mile, currently replacing the local loop for
corporate and small business subscribers and migrating to the residential
market. Combining a leading packet-on-demand technology and time division
duplexing, it offers data transmission at rates up to 25 Mbps -- providing the
capability for voice, real-time video conferencing, transmission of full
streaming video, web surfing, and transmission of data files - all
simultaneously and over one connection.


For Further Information Contact:
Stephanie M. Day
Vice President-Investor Relations and
Corporate Communications                        Investor Information Line:
(408) 743-3429                                  (Toll-free) 1-888-225-6789
(408) 743-3482 Fax                              http://www.adaptivebroadband.com
sday@adaptivebroadband.com
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