The 777th Radar Squadron is an inactive United States Air Force unit. It was last assigned to the Northwest Air Defense Sector, Tactical Air Command, stationed at Mountain Home Air Force Base, Idaho. It was inactivated on 15 September 1991.
From 1951-1981, the unit was a General Surveillance Radar squadron providing for the air defense of North America. From 1988 to 1991 it operated Over The Horizion Backscatter (OTH-B) radar for Tactical Air Command.
Constituted as the 777th Aircraft Control and Warning SquadronActivated on 18 December 1950Redesignated as
777th Radar Squadron (SAGE) on 15 July 1960Redesignated as
777th Radar Squadron on 1 February 1974Inactivated on 30 September 1980Activated on 1 October 1988Inactivated on 15 September 1991
542d Aircraft Control and Warning Group, 18 December 195028th Air Division, 6 February 195225th Air Division, 1 March 1959Portland Air Defense Sector, 1 March 196026th Air Division, 1 April 196625th Air Division, 15 September 1969 - 30 September 1980Northwest Air Defense Sector 1 October 1988 - 15 September 1991Klamath AFS, California, 18 December 1950 - 30 September 1981Mountain Home AFB, Idaho, 1 October 1988 - 15 September 1991 (HQ Site)Christmas Valley AFS, Oregon (OTH-B Transmitter site)Tule Lake AFS, California (OTH-B Receiver site)
