CKOK Ltd. the original owner launched the station in December 1966 as CKOO. Sometime in the late 1970s or the early 1980s, a rebroadcaster was added in Oliver at 1490 AM with the callsign CKOO-1. In 1984, CKOO and CKOO-1 were authorized to increase night power from 250 to 1,000 watts. In 1991, CKOO and CKOO-1 adopted their current callsigns CJOR and CJOR-1. The CJOR callsign was previously used at an unrelated radio station in Vancouver, British Columbia from 1926-1988.
Over the years, the station went through a number of owners and formats. In 1993, CJOR received CRTC approval to convert CJOR-1 Oliver to the FM dial to operate at 102.9 MHz.