CKDO 107.7 is a broadcast Radio station from Oshawa, Ontario, Canada, providing classic hits, oldies and classic rock music.
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.