[L3 Letterhead]
                             [L3 LOGO]
                            communications
                           ----------------
                        L-3 Communications Corporation
                              600 Third Avenue
                              New York, NY 10016
                        212-697-1111 Fax: 212-949-9879

      Frank C. Lanza
Chairman and Chief Executive Officer


                                   June 25, 2001


George M. Ball
Philpott Ball & Werner
212 South Tryon Street
Suite 1050
Charlotte, North Carolina 28281

Dear Mr. Ball:

     I am writing to express my shock and dismay upon learning
this morning that Datron Systems has entered into a definitive
agreement to be sold to the Titan Corporation for $51.2 million
in Titan common stock. As you know, on May 30 we made an offer to
acquire substantially all of Datron's assets at an all-cash price
of $52 million, subject to a $3 million break-up fee and a 60-day
exclusivity period to perform confirmatory due diligence. In
response to Datron's concerns regarding our proposal, we promptly
informed you of our revised offer for an all-cash acquisition of
Datron's common stock that would not be subject to a break-up
fee, based upon your representation that Datron was willing to
pursue a sale on this basis and that you would contact us on or
about June 15 to discuss arrangements for our exclusive period of
confirmatory due diligence. Until this morning's announcement of
Datron's agreement with Titan, we heard nothing.

     We are outraged that Datron's board agreed to a sale to
Titan in the face of our higher, all-cash offer and without
regard to its fiduciary duty to maximize the value to be received
by Datron's stockholders. In light of these circumstances, we
question whether you shared our revised offer with Datron's board
at all. We do not understand how the Datron board could accept a
stock-based offer that could result in shareholders receiving as
little as $46 million in Titan common stock, based only upon a
slightly greater than 10% decline in Titan's common stock price
from the current market price, when compared to our fully-funded,
firm, all-cash offer. We are currently reviewing this matter and
will take any and all legal actions we deem appropriate under the
circumstances.

                                            Sincerely,

                                            F C LANZA
                                            Frank C. Lanza

cc:     David A. Derby, Datron Systems, President, CEO and
Chairman
C. Duncan Soukup, Lionheart Group, Principal

L:\Letters-LOI,101,MOU,MOA.Offers\Datron 6.25.01.doc