Filed by California Amplifier, Inc.
           Pursuant to Rule 425 under the Securities Act of 1933
                    Subject Company: Vytek Corporation


                  Registrant Commission File No. 0-12182



     This filing relates to the proposed merger pursuant to the terms of
that certain Agreement and Plan of Merger and Reorganization, dated as of
December 23, 2003 (the "Merger Agreement"), by and among California
Amplifier, Inc. ("California Amplifier"), Mobile Acquisition Sub, Inc., a
wholly-owned subsidiary of California Amplifier, Vytek Corporation
("Vytek"), a privately-held company, and James Ousley, as stockholder
representative.

     The Merger Agreement was filed by California Amplifier under cover of
Form 8-K on January 5, 2004 and is incorporated by reference into this
filing.


Additional Information About the Proposed Acquisition and Where to Find It:

     California Amplifier will file with the Securities and Exchange
Commission a registration statement on Form S-4 to register the offer and
sale of shares of its common stock in connection with the proposed merger
under the Securities Act of 1933, as amended.  The registration statement
will contain important information and stockholders of Vytek should
carefully read the registration statement and any amendments or
supplements thereto before making a decision with respect to the proposed
merger.  California Amplifier will also file with the SEC a proxy
statement in connection with the solicitation of proxies for use at a
special meeting of its stockholders to approve the issuance of shares of
its common stock in connection with the proposed merger.  The proxy
statement will contain important information and stockholders of
California Amplifier should carefully read the proxy statement before
making a decision with respect to the issuance of shares in the proposed
merger.  The officers and directors of California Amplifier may be deemed
to be participants in connection with this solicitation of proxies.
Copies of the registration statement and the proxy statement when filed
may be obtained without charge at the SEC's website at www.sec.gov or from
California Amplifier.  For additional information, visit California
Amplifier's web site at www.calamp.com.

For more information, contact:
       Crocker Coulson                            Rick Vitelle
       Partner                                    Chief Financial Officer
       CCG Investor Relations                     California Amplifier, Inc.
       (818) 789-0100                             (805) 987-9000
       crocker.coulson@coffincg.com