The A-10 requires the ability to operate in a Global Positioning System (GPS) degraded environment. Virtually every system on the A-10 depends on the highly accurate timing, position, orientation, and velocity data the Embedded GPS/Inertial Navigation System (INS) [EGI] provides. Adversary attempts to deny GPS capability may degrade or limit the precision of A-10 navigation solutions, decreasing positional awareness, and weapons employment accuracy. The first step to counter or minimize this threat is the installation of a controlled reception pattern antenna, coupled with a digital antenna electronics unit, to nullify the effects of jamming systems. The integration of selective availability anti-spoofing modules reduces the impact of jamming and protects GPS military precise positioning service accuracies. The A-10 needs greater precision and reliability to comply with the national airspace system transition to satellite-based air traffic control. Upgrading the A-10 EGI supports the FAA mandate and provides increased capability to preserve GPS integrity in a contested or degraded electromagnetic environment. Each of the 84 ANG A-10s require an anti-jam EGI.

This resolution has been coordinated with all Air National Guard A-10 units and A-10 Weapons System Council, and the NGAUS CAF Task Force. It is replacing a capability that is not a current top priority for ANG A-10s. Note: As a weapon system identified for possible divestment, modernization efforts will focus on safety of flight, near-term sustainment requirements and integration of transferrable equipment.