The 55th Electronic Combat Group at Davis-Monthan AFB, Arizona, received its first Baseline-2 modified EC-130H Compass Call electronic combat aircraft on 20 February 2014. A major improvement is the expansion of the EC-130H’s mission system’s plug-and-play Quick Reaction Capability, which has historically allowed the program to counter unique high profile threats. Aircraft communication capabilities are improved with expansion of satellite communications, increased multi-asset coordination nets, and upgraded data-link terminals. The majority of the improvements found in the Baseline-2 upgrade are classified modifications to the mission system. The Baseline-2 modification was overseen by the US Air Force’s Big Safari program office and Air Force Material Command's 661st Aeronautical Systems Squadron based in Waco, Texas.
