FM sister station CKWS-FM (now CFMK-FM) signed on in 1947 (originally as CKWR-FM), and CKWS-TV launched in 1954.

The applicant indicated that approval of its proposal would improve the quality of CFFX's signal in Kingston's downtown core.

[4] In September, CFFX began testing at 104.3 FM playing a wide variety of different music formats.

At midnight on the evening of January 14, 2008, the AM frequency began a final test of their equipment using their 10,000 watt daytime directional antenna.

On August 19, 2010, after the CRTC allowed oldies on FM radio, the station changed its format back to a classic hits format, as well as changing its call sign to CKWS-FM, regaining the CKWS calls it lost back in 1987 as an AM station.

On February 13, 2015, the station rebranded to 104.3 Fresh Radio and changed its format to hot adult contemporary.

[7] In July 2024, as a result of company-wide cuts by Corus Entertainment, CKWS and CFMK laid off the entirety of their local airstaff.