EXHIBIT 99.4

                         Consent of Financial Adviser

     We hereby consent to the use in this Registration Statement on Form S-4 of
our letter to the Board of Directors of Stanford Telecommunications, Inc.
included as Appendix 5 to the Proxy Statement/Prospectus that is part of this
Registration Statement, and to the references to such letter and to our firm in
such Proxy Statement/Prospectus.  In giving such consent we do not thereby admit
that we come within the category of persons whose consent is required under
Section 7 of the Securities Act of 1933 or the rules and regulations of the
Securities and Exchange Commission thereunder, nor do we thereby admit that we
are experts with respect to any part of such Registration Statement within the
meaning of the term "experts" as used in the Securities Act of 1933, as amended,
or the rules and regulations of the Securities and Exchange Commission
thereunder.



                                        /s/ FERRIS, BAKER WATTS, INCORPORATED
                                        -------------------------------------
                                        Ferris, Baker Watts, Incorporated
                                        September 30, 1999