CIMF-FM (94.9 MHz) is a French-language Canadian radio station in Gatineau, Quebec, and serving the National Capital Region, including Ottawa, Ontario. It has an adult contemporary format and is part of Bell Canada's Rouge FM network which operates across Quebec and Eastern Ontario. The radio studios and offices are in Gatineau at 215 Boulevard Saint-Joseph in the same building as co-owned 104.1 CKTF-FM, part of the NRJ radio network.

CIMF-FM has an effective radiated power (ERP) of 84,000 watts. It is a Class C1 station using an omnidirectional antenna located in Camp Fortune, Quebec, within Gatineau Park.

The station signed on the air on January 1, 1970. Its original call sign was CKCH-FM as the sister station to the now-defunct CKCH 970 AM. The AM station went silent on September 30, 1994, when the "Telemedia" and "Radiomutuel" networks merged to form the "Radiomédia" network (now "Corus Québec").

CKCH-FM, and later CIMF-FM, had a beautiful music format for its first 20 years, playing mostly instrumental cover songs of popular hits. Over time, to stay contemporary, it added more soft vocals. The station switched to soft adult contemporary in 1990 and the station was renamed CIMF Rock-Détente.

In 2004, Astral Media revamped the Rock Détente network with a new logo. This resulted in CIMF Rock-Détente being renamed to simply 94,9 RockDétente. As such, the station no longer publicly uses its call sign (although the call letters were brought back as station identification in 2011).

On August 18, 2011, at 4 p.m., the station ended its 21-year run with the "RockDétente" branding. All "RockDétente" stations, including CIMF, rebranded as Rouge FM.

The last song under "RockDétente" was "Pour que tu m'aimes encore" by Celine Dion, followed by a tribute of the branding. The first song under "Rouge" was "I Gotta Feeling" by Black Eyed Peas.

On October 31, 2000, Télémédia Radio was denied a licence to add a new FM transmitter to operate on 107.7 MHz at Hawkesbury, Ontario.