Compass Call reshapes OIR battlefield with electronic warfare domination An EC-130H Compass Call electronic warfare aircraft receives maintenance in Southwest Asia, Aug. 29, 2017. Compass Call is an airborne tactical weapon system that uses noise jamming to disrupt enemy command-and-control communications and deny time-critical coordination essential for enemy force management. Air Force photo by Tech. Sgt. Jonathan Hehnly SHARE: Download: Full Size (4.45 MB) Tags: inherent resolve, air force Credit: Tech. Sgt. Jonathan Hehnly VIRIN: 170829-F-ZI207-0389.JPG Photo Gallery