MOUNTAIN HOME AIR FORCE BASE, Idaho -- Staff Sgt. Blaine Akers and Airman 1st Class David Brennen, F-15E avionics technicians for the 366th Equipment Maintenance Squadron, prepare to run the Joint Service Electronic Countermeasures System Tester at a hangar here Jan. 18. This test helps conduct end-to-end testing of aging electronic warfare radio frequency cabling and perform full spectrum threat analysis on the base’s F-15Es. (U.S. Air Force courtesy photo)