U.S. Air Force Senior Airman Venmeir Crowe, 86th Operations Support Squadron radar airfield weather systems technician, left, and Staff Sgt. Christopher Kenny, 86th OSS RAWS supervisor, use a portable instrument receiver at Ramstein Air Base, Germany, Oct. 8, 2020. The PIR is used to pick up signals from RAWS shelters around the airfield to calibrate the instrument landing system computer. RAWS maintains critical systems allowing Air Traffic Control to safely bring aircraft in and out of Ramstein. (U.S. Air Force photo by Airman 1st Class John R. Wright)