Staff Sgt. David Terry, 379th Expeditionary Operations Support Squadron Silent Sentry operator, uses a remote control to move a geolocation antenna to maximize the strength of the signal from an orbiting satellite Sept. 19, 2012. The Silent Sentry team monitors high priority satellite communication signals, detects electromagnetic interference on those signals and geolocates the source of that interference along with other signals of interest. (U.S. Air Force photo/Senior Airman Bryan Swink)