The new EC-130H Compass Call Block 30 Aircraft, 43rd Electronic Combat Squadron (ECS), arrives at Davis-Monthan Air Force Base, Arizona, on 11 March 1997. The Compass Call (CC) aircraft jams hostile communications, radar, and other electromagnetic systems in support of Commander In CHIEF (CINC) objectives. Employed as a standoff electronic attack (EA) system, CC generally operates outside the range of known ground threats