220315-F-GM429-0004
Senior Airman Troy Stanley, 15th Operation Support Squadron Radar, Airfield and Weather Systems Shop, connects the azimuth monitor to the Tactical Navigation System for a training exercise at Joint Base Pearl Harbor-Hickam, Hawaii, March 15, 2022. The TACAN is a radio air-navigation system that provides aircrew distance information as a guide to show their geographical location and is usually used by combat controllers in remote airfields. (U.S. Air Force photo by Airman 1st Class Makensie Cooper)