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.. 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. In compliance with new broadcaster regulations regarding simulcasting, on March 21, 1965, CKDA-FM ended its simulcast of its AM sister and became CFMS-FM, airing an easy listening format from noon to midnight seven days a week. In 1971, CKDA increased its power to 50,000 watts, moved to 1200 AM on July 1, 1986, and dropped its oldies format for an all-'70s music format in 1994. CKDA and CFMS founder David Armstrong died on April 22, 1985, after which point his widow, Sheridan Armstrong, took over running the stations. In August 1995, the OK Radio Group Ltd. purchased CKDA from Capital Broadcasting and relaunched it as CKXM-AM in October 1995, broadcasting a country music format as 1200 CKXM Country. At that time, CKXM and its sister station CKKQ were located at 3795 Carey Road in Victoria. CKKQ was on the second floor while CKXM was on the first floor. In May 1999, both CKXM and CKKQ moved to the top floor of 2750 Quadra Street, a three-storey Victoria office building purchased by the OK Radio Group Ltd. in the fall of 1998. In March 2000, CKXM moved from the AM band to the FM band at a frequency of 91.3, maintaining its country music format and rebranded as The New X 91 Three. The AM signal continued until May 2000. On June 21, 2001, CKXM changed its call sign to the current CJZN and relaunched as The Zone @ 91.3 with a modern rock format. The first song played was Blink 182's Rock Show. With the shift in format, the station introduced a Band Of The Month promotion supporting local Victoria artists. Some of those artists include: Jets Overhead, Armchair Cynics, Moneyshot, Acres Of Lions, Leeroy Stagger, Kincaide, Theset, and Vince Vaccaro. On December 1, 2006, CJZN and CKKQ came under the ownership of the Jim Pattison Group.
