sentences:  It was activated in April 1951, and declared completely operational in late 1952, and initially the station functioned as a Ground control intercept (GCI) and warning station.As a GCI station, the squadron's role was to guide interceptor aircraft toward unidentified intruders picked up on the unit's radar scopes.The 785th Aircraft Control and Warning Squadron began operations with an AN/FPS-3 search radar and AN/FPS-4 from the site in April 1952.