Following Mason's death in 1948, ownership was passed to a charitable foundation set up by his estate, with the Sudbury Memorial Hospital as the primary beneficiary.
Following the power increase, the station's AM signal could be heard as far away as Europe and some areas of the United States during the nighttime hours.
On March 16, 1990, the CRTC approved Telemedia Communications Ontario Inc.'s application to amend the Promise of Performance for CIGM-FM by changing the music format from Group III (Country and Country-Oriented) to Group IV (40% Pop and Rock-Softer; 60% Pop and Rock-Harder).
While CKSO had been a perennial second in the radio ratings against CHNO, CJRQ quickly became the most-listened to radio station in Northern Ontario, and retained that status until the late 1990s, when CJMX's adult contemporary format overtook CJRQ in the ratings.
[7] The station aired a daily programming feature in which it asked a daily poll question on an issue in the news, and subsequently broadcast a selection of listener comments; the CBSC complaint pertained to a question about whether the Ontario Health Insurance Plan should cover sex-reassignment surgery for transgender residents of the province, and one listener comment that was broadcast was singled out as especially homophobic and transphobic.
In 2009, CJRQ's longtime sister station AM 790 CIGM was sold to Newcap Broadcasting and moved to the FM dial in August that same year.
[8] The station uses the same general format as, and shares some programming with, CKFX-FM in North Bay and CJQQ-FM in Timmins.
Rogers had also resurrected the original 1990s brandings for CJQQ-FM Timmins (as Q92) and CKFX-FM North Bay (as 101.9 The Fox).