U.S. Air Force Staff Sgt. Jeff Schumacher, a Raiders Deployable Ground Segment-0 crew chief with the 379th Expeditionary Operations Support Squadron, attaches a low noise amplifier to an antenna at Al Udeid Air Base, Qatar, Jan. 30, 2017. These antennas are used in Operation Silent Sentry and help detect and geolocate electromagnetic interference to signals of interest. (U.S. Air Force photo by Senior Airman Miles Wilson)