 CJZN signed on for the first time on January 18, 1950 as CKDA, initially broadcasting on 1340 AM at 250 watts under the ownership of Capital Broadcasting System Ltd. (headed by founder David Armstrong).On August 1, 1954, CKDA moved to 1280 AM and increased its power to 5000 watts; in 1955, CKDA-FM was signed on as a simulcast of CKDA-AM, and was the studio transmitter link to the off-shore transmitter site.On September 18, 1957, the AM station moved to 1220 kHz and doubled its power to 10,000 watts.