Successful ERGM test shots confirms the power and versatility of IEC’s TruTrak™ GPS receiver with advanced SAASM technology

ANAHEIM, CA - March 15, 2005 Interstate Electronics Corporation (IEC), a wholly owned subsidiary of L-3 Communications Corporation, announced their Selective Availability Anti-Spoofing Module (SAASM)-based Global Positioning System (GPS) TruTrak receiver performed successfully in a performance flight test earlier this month. Raytheon Missile Systems successfully fired two tactical ERGM (Extended Range Guided Munition) rounds at White Sands Missile Range, New Mexico. Both five-inch rounds exited the gun after transferring through a severe gun environment, the tails erected and the rocket motor ignited. Both rounds achieved stable flight. The IEC TruTrak™ receiver acquired and tracked GPS satellites, allowing guided flight to the target more than 40 nautical miles away. This round achieved unprecedented accuracy and detonated the warhead in the target arena

A key element of the Navy's littoral warfare concept, the increased range (63 miles), 110 pound, five-inch, rocket-assisted ERGM, coupled with IEC’s TruTrak™ precision Global Positioning System receiver, will provide the U.S. Navy the ability to support U.S. Marine Corps forces ashore with responsive, sustained, accurate firepower. The receiver incorporates IEC’s compact SAASM module, a highly integrated, compact single package that receives, decodes and manages the signals from up to 12 GPS satellites, requiring only antenna/pre-amplifier functions externally. The receiver provides precise measurements to the onboard guidance computer to guide the round to the target area 40 nautical miles down range moving at 1875 miles per hour after being fired from the five-inch / 62 caliber gun.

The IEC SAASM GPS receiver systems are supplied by IEC to Raytheon, the prime contractor for the ERGM program. The receivers were developed for the U.S. Navy’s ERGM Program as part of a new guided five-inch artillery projectile.

“Meeting today's objectives with tactically configured rounds validates our technical advancements in the component structure and sets the stage for the land-based test flight series to begin,” says David Martin, Raytheon Projectiles product line vice president. “With the performance we saw today, we've completed the final engineering flight test, gained valuable total system performance data, and demonstrated a revolutionary capability that will fill the gap in naval surface fires as soon as possible with one of the first precision guided munitions to be fired from a gun.”

“This success is a tribute to the entire team,” comments Paul Bricker, director of GPS Programs. “This test is another successful demonstration of the TruTrak GPS receiver’s acquisition and navigation capability over an extended range after a tactical gun launch.”

A fifth-generation GPS receiver that is C/A and direct Y-Code capable, the TruTrak™ allows extremely fast signal acquisition (less than three seconds from a cold start) even in the face of hostile jamming and high vehicle dynamics. Its 12-channel architecture provides rapid Time-To-First-Fix (TTFF) logic under all initialization conditions.

The IEC TruTrak™ receiver incorporates the latest SAASM technology, including extended functions, to provide enhanced GPS security. SAASM is provided by a tamper-resistant, unclassified multi-chip (SAASM) module that, when incorporated into a GPS receiver, gives authorized users access to the Department of Defense GPS Precise Positioning Service signal which is more accurate than commercially available GPS signals. The IEC SAASM is fully qualified by the GPS Joint Program Office. The SAASM module is combined with the radio frequency (RF) down converter and I/O logic to form the complete GPS receiver.

Proprietary Gun-hardening Design Techniques
Derived from IEC’s rugged projectile GPS receivers designed to operate in harsh environments, the TruTrak™ receiver is capable of withstanding a 15,500G setback and 5000G lateral (balloting) gun shock. The production-ready TruTrak™ can also be used in the field, in ground vehicles, missiles and in test pods that track high-performance aircraft. Ninety-five percent of the components in the design of the module are commercial off-the-shelf (COTS).

Headquartered in New York City, L-3 Communications is a leading merchant supplier of secure communications systems and products, avionics and ocean products, training products, microwave components and telemetry, instrumentation, space and wireless products. Its customers include the Department of Defense, selected U.S. government intelligence agencies, aerospace prime contractors and commercial telecommunications and wireless customers. 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.

For more information, contact:
Greg Martz
Marketing Manager
Interstate Electronics Corporation
Phone: (714) 758-4158
Fax: (714) 758-4148
URL: www.iechome.com