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Press Release

L-3/Interstate Electronics Projectile Product SAASM Test Module Successfully Completes Critical Gun Firing Simulation!

New module cuts weight and space requirements while withstanding 20,000 G’s in shear and 5,400 G’s in transverse axis

ANAHEIM, CA (February 17, 2000) – L-3/Interstate Electronics Corporation (L-3/IEC) today announced it has completed high-Gravity testing to 20,000 G’s (gravity’s or times Earth’s gravitational forces) of a prototype Global Positioning System (GPS) Selective Availability Anti Spoofing Module (SAASM). The SAASM is designed to operate in L-3/ IEC’s Xcaliber GPS projectile receiver product and was tested for proof of concept of construction design. While the Army’s Excalibur program calls for all GPS hardware components to withstand a minimum of 15,500 G’s, testing is done at higher forces, between 20,000 and 30,000 G’s, to provide for design margin. This test demonstrates that the chip scale test dies and thermal spray security coating, along with mechanical packaging, can withstand 20,000 G’s of shock.

L-3/IEC, currently developing gun hardened GPS navigation systems for the ERGM and Excalibur gun programs, also foresees a future in other missile and projectile programs of even greater magnitude. Once perfected, these systems are expected to become the industry standard for fully functional, gun hardened GPS navigation systems. "They will not only save vital weight and reduce physical space requirements, they will cut the acquisition and life support costs by a substantial amount," stated Jeff Burd, Gun Hardening Principal Engineer.

The SAASM (Selective Availability Anti Spoofing Module) assembly is a Multi-Chip-Module (MCM) which contains the core logic devices for a P (Y) code GPS receiver. The SAASM along with RF downconverter and I/O logic forms the complete GPS receiver. The small form factor GPS design must survive gun shot acceleration forces exceeding 15,000 G’s while maintaining exacting performance requirements including precision timing to within 10 microseconds.

For advanced testing purposes, mechanical modules were assembled using test die. This allowed for extensive electrical functionality tests to be performed before and after air gun testing. The test assemblies were subjected to 20,000 G’s in shear axis and 5,400 G’s in transverse axis using National Technical Systems’ (NTS, Florida) air gun.

Based in Anaheim, CA, Interstate Electronics Corporation, a division of L-3 Communications, has been a long-term supplier of critical test instrumentation and missile tracking systems for the US Navy's Fleet Ballistic Missile (FBM) weapons systems, including the Trident submarine. The Division is ranked as an industry leader in GPS receiver and translator-based products, which are currently in use on multiple aircraft, cruise missiles and precision guided bombs. In addition, IEC produces ruggedized displays for military and industrial applications, and provides secure communications on a quick reaction basis for deployed forces in Eastern Europe

L-3 Communications is a leading supplier of secure communications systems and products, avionics and ocean navigation systems, training systems, microwave components and telemetry, instrumentation, space and wireless products. Its customer base includes the Department of Defense (DOD), U.S. government intelligence agencies, aerospace and defense prime contractors and commercial telecommunications and cellular customers. To learn more about L-3 Communications please visit http://www.L3T.com/

For more information, contact:
Greg Martz
Marketing Manager, Communications
Phone: (714) 758-4158