Owned and operated by Arsenal Media (formerly Attraction Radio), it broadcasts on 105.5 MHz with an effective radiated power of 6,000 watts (class A).

The station was originally licensed by the Canadian Radio-television and Telecommunications Commission (CRTC) in March 2007.

In November 2014, it was announced that CKGS-FM [5] and sister station CKRS-FM (now CILM-FM) would join Cogeco's Rythme FM network starting February 9, 2015;[6] this followed the CRTC's approval of CKRS's format change, which sought an Adult Contemporary format and a reduction in local talk programming.

[7] In August 2018, Attraction Radio abandoned the Rythme FM network affiliation for an in-house branding "O".

CKGS-FM would break the simulcast of CILM-FM on September 17, 2019, when it adopted the Country-Western format as Hit Country 105,5.