WKHB (620 kHz "KHB Radio") is a commercial AM radio station licensed to Irwin, Pennsylvania, and serving Greater Pittsburgh. It is owned by Broadcast Communications, Inc., and it carries a brokered programming radio format. During the day, hosts pay the station for time on the air and may advertise their products or services during their shows. At night, WKHB plays oldies music. By day, WKHB transmits with 5,500 watts, but at night, to prevent interference to other stations on 620 AM, WKHB reduces power to only 50 watts. The transmitter is off Turkey Farm Road in Wendel. Programming is simulcast on three FM translators: 102.1 in Central Allegheny County, 94.1 in Pittsburgh and 92.3 in Westmoreland County. History Beginnings as WHJB 620 began as WHJB, formerly licensed to Greensburg, Pennsylvania. It signed on the air on October 28, 1934. The station began as a daytimer, operating at a power of 250 watts, non-directional, and required to go off the air at night. The station's call letters stood for founder H.J. Brennen. doing business as Pittsburgh Radio Supply House, broadcasting from a studio at 128 North Penn Avenue in Greensburg. WHJB, as the first radio station on the air in suburban Pittsburgh, experienced steady growth and prospered over its formative years, getting nighttime power authorization by 1955, as well as a daytime power increase, with power settings at 1,000 watts during the day, and 500 watts at night, adopting a directional antenna pattern with changing patterns for night and day operation. By 1960, the name of the licensee had changed its name to WHJB, Inc., though the station still was owned by the Brennen family. That changed in 1962 when control was transferred to others after the Brennen family's interests were sold to Robert Burstein, and then to general manager Melvin Goldberg by 1967. WHJB-FM signs on On November 1, 1964, WHJB welcomed WHJB-FM, its like-named FM sister station to the air. Though the stations shared identical call letters, they were initially programmed separately, until 1967, when several changes took place. That year, WHJB and its FM sister, by this time named WOKU-FM, now simulcasting for half the broadcast day, moved to new studios and offices at 227 West Otterman Street in Greensburg. The stations moved to another location at 245 Brown Street near the Greensburg city limits in 1974, where they remained for the rest of the 20th century. As