The station has a non-commercial news/talkformat and is part of the Ici Radio-Canada Première network, which operates across Canada. Like all other Première stations, but unlike most FM stations, CBGA-FM broadcasts in mono.
Previously known as CBGA when the station was on the AM band on 1250 kHz, the station moved to FM in 2004. The station was founded in 1948 as CKBL and changed its call sign when it was bought by Radio-Canada in 1972.
On October 28, 2011, the CRTC approved the CBC's application. After the launch of these new FM transmitters, CBGA-1 will leave the air. The AM station mainly served listeners on the Quebec side of Chaleur Bay; listeners in the Bathurst area already receive Première programming from CBAF-FM-2 105.7 in Allardville, a repeater of CBAF-FMMoncton.
On January 4, 2013, the CBC filed an application to convert CBGA-6 Murdochville from 1270 kHz to 97.7 MHz.  This application was approved by the CRTC on April 11, 2013.