⚔️ War & Conflict Apr 23, 2026 · Todd South

Northrop Delivers New Jam-Resistant Navigation System for F-22

Air Force Magazine
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Northrop Delivers New Jam-Resistant Navigation System for F-22
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Northrop Grumman recently delivered the first production-version of a new upgraded, jam-resistant airborne navigation system for the Air Force’s F-22 Raptor and Navy’s E-2D Advanced Hawkeye aircraft.



The Embedded Global Positioning System/Inertial Navigation System Modernization (EGI-M) is designed for missions into GPS-contested and GPS-denied environments, according to a Northrop release on April 17. Its official military designation is LN-351.



EGI-M uses M-code, the military-only

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