CKDJ-FM is a Canadian radio station. It is the campus radio station of Ottawa's Algonquin College and broadcasts on 107.9 FM. CKDJ's studios and transmitter are located on campus.The station was launched in 1972 as a closed circuit outlet using the call letters CBRT (College Broadcasting Radio Television). At the time, the radio and television broadcasting programs at the college were one unit, though they were later split into two completely separate entities.