Its studios and transmitters are located in Rockville, Maryland, and it serves the Washington metropolitan area.
Its transmitter and antenna array are located off Hungerford Drive (Maryland Route 355), near the northern border of the city of Rockville.
In order to retain both stations and meet multiple ownership rules, the Silver Spring station license was relocated to Rockville, Maryland—which under pre-1950 Census Bureau guidelines was not part of the Washington metropolitan area—on 1600 kHz.
The station shifted to an oldies format in March 1993 (simulcast on FM 94.3 in Warrenton, Virginia), then followed by a short stint as top-40 again around 1998, in the FM-dominated market.
During the 1990s, WINX was the flagship for American University Athletics; Chuck Timanus served as lead play-by-play announcer, with his blind son Eddie Timanus, later a famous game show contestant and sportswriter, serving as a statistician.