In 1976, then-owner
Radio-Nord Communications was granted a license from the
CRTC, in which the station would operate as
Radio-Canada's private affiliate of what was then called "Première Chaîne"; also included was a rebroadcaster,
CHLM-FM-1 at Lithium Mines, serving nearby
Val-d'Or, operating on 97.3 MHz with effective radiated power of 52,000 watts. In 1979, CHLM-FM-1 was authorized to move to 103.5 MHz and to increase effective radiated power to 55,300 watts. CHLM-FM and CHLM-FM-1 signed on the air by 1980; eventually, CHLM-FM-1's city of license would have changed to
Amos, and broadcasting on another different frequency, 91.5 MHz. On September 7, 1989, the station was denied a licence to add a transmitter at
Ville-Marie, Quebec on 100.5 MHz. In 2002, the CBC would add a transmitter of their own serving Ville-Marie,
CBFY-FM 89.1, rebroadcasting CHLM-FM. In February 2000, CHLM-FM and CHLM-FM-1 became full-time re-broadcasters of the Radio-Canada network. It was directly acquired by the CBC in 2004. == Programming ==