CKDO

CKDO is a Canadian Class A clear-channel radio station, broadcasting at 1580 khz in Oshawa, Ontario. The station airs an oldies format. CKDO also has an FM rebroadcaster in Oshawa, CKDO-FM-1, at 107.7 Mhz. CKDO is one of only two radio stations in Canada that broadcast at 1580; the other is CBPK, a 50 watt weather information station in Revelstoke, British Columbia.HistoryCKDO was launched in 1946 by T. W. Elliott, an executive with the Canadian division of General Motors. Its original frequency was 1240.In 1950, Elliott sold the station to Lakeland Broadcasting, who adopted the new callsign CKLB. The station moved to AM 1350 in 1956. The following year, Lakeland launched an FM sister station, CKLB-FM. In 1979, the stations were acquired by Grant Broadcasting, and CKLB adopted the new call sign CKAR. (The former CKAR call sign is now used at a radio station in Huntsville, Ontario).In 1990, Grant Broadcasting sold the stations to Power Broadcasting. In 1992, Power readopted the station's original CKDO calls and its current format. In 1996, the station moved to an adult contemporary format, sometimes simulcasting the programming of its FM sister station and other times airing its own distinct programming schedule.