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VISIT L-3 ELECTRON DEVICES AT NAB2005, BOOTH C8507

L-3 COMMUNICATIONS ELECTRON DEVICES INTRODUCES BREAKTHROUGH PLUG-IN STYLE IOT

New plug-in style IOT enables simple replacement in 30 minutes or less

WILLIAMSPORT, PA — April 18, 2005 — L-3 Communications Electron Devices (L-3 EDD), a division of L-3 Communications Corporation, today announced the release of its new L-3 IOTD 110P, an innovative plug-in IOT that can be used in new or existing analog and digital transmitter installations to replace a wide variety of standard build-up style IOTs. The L-3 IOTD 110P, when used with L-3’s new input cavity, can significantly reduce replacement time by eliminating the need to remove the trolley from the transmitter cabinet.

“This innovative solution for IOT replacement offers dramatic time savings that will allow broadcasters to get their transmitter back on line in a matter of minutes,” said Dennis Beck, vice president and general manager of L-3 Electron Devices. “We have streamlined the IOT design so significantly that just one person now can perform a quick and effective IOT replacement.”

To make rapid plug-in replacement possible, L-3 EDD engineers modified the conventional IOT design with internal cooling, thereby enabling the removal of the mid-body water fittings and mounting flange. The tube can thus be plugged directly into the trolley without disassembling the output cavities. For easy removal, the IOT can be pulled directly from the top of the primary output cavity, which has been modified with the addition of bidirectional finger stock. Replacement simply involves inserting a new unit, refitting the input cavity and attaching the electrical leads and collector coolant lines.

A free bidirectional finger stock conversion kit is supplied with the plug-in tube and can be installed in less than one hour. L-3 EDD can also supply new input cavity assemblies that are shorter, lighter and more efficient than the older e2v units. The combination of L-3’s plug-in style IOT and the new input cavity allows the user to replace the IOT without removing the trolley from the transmitter. All electrical connections are made from the top of the assembly, eliminating the need to suspend it over the IOT during installation. An improved tuning mechanism simplifies the final process.

L-3 Communications provides a variety of products to the broadcast industry. The company’s WESCAM business provides an array of precision-stabilized cameras and products for action events in newsgathering, cinematography, film production and sports broadcasting. L-3’s Wolf Coach subsidiary is a supplier of mobile trucks for ENG/SNG applications and L-3 Satellite Networks is a manufacturer of high quality satellite communications products and systems for applications such as digital video broadcasting, Internet satellite service, traditional teleports and Very Small Aperture Terminals (VSATs).

In addition to supplying transmitter tubes to the television industry, L-3 Electron Devices is a worldwide supplier of microwave power devices to all major prime contractors on key military programs, including missile seekers, aircraft navigation and landing systems, airborne and ground radars and electronic warfare and communications systems. L-3 Electron Devices has facilities in San Carlos, CA, and Williamsport, PA.

Headquartered in New York City, L-3 Communications is a leading provider of Intelligence, Surveillance and Reconnaissance (ISR) systems, secure communications systems, aircraft modernization, training and government services and is a merchant supplier of a broad array of high technology products. Its customers include the Department of Defense, Department of Homeland Security, selected U.S. Government intelligence agencies and aerospace prime contractors.

To learn more about L-3 Communications, please visit the company's web site at www.L-3Com.com.

SAFE HARBOR STATEMENT UNDER THE PRIVATE SECURITIES LITIGATION REFORM ACT OF 1995

Except for historical information contained herein, the matters set forth in this news release are forward-looking statements. The forward-looking statements set forth above involve a number of risks and uncertainties that could cause actual results to differ materially from any such statement, including the risks and uncertainties discussed in the company's Safe Harbor Compliance Statement for Forward-looking Statements included in the company's recent filings, including Forms 10-K and 10-Q, with the Securities and Exchange Commission. The forward-looking statements speak only as of the date made, and the company undertakes no obligation to update these forward-looking statements.