Cobourg radio station CFMX-FM has been broadcasting since 1982, although it had gone on the air and off again, several times, between 1976 and 1982. CFMZ first signed on in 1988 as a rebroadcaster[2] of CFMX, with the call sign CFMX-FM-1. The station was, at first, licensed to Mississauga, the original transmitter location. The transmitter was moved to Toronto in 1993.[3] CFMX's operations were gradually centralized in Toronto by 1997, and for all intents and purposes the Toronto rebroadcaster was now the primary signal.
In September 2006, Canadian broadcaster Moses Znaimer purchased the station.[4] The CFMZ call sign was originally assigned to the Cobourg transmitter. However, according to Industry Canada databases, the Toronto rebroadcaster kept its original CFMX-FM-1 call sign.[5]
In September 2007, Znaimer also announced a deal to acquire CHWO, a pop standards station in Oakville.
In 2008, the CRTC approved a change that upgraded the Toronto rebroadcaster to a full-fledged station under the call sign CFMZ, while the Cobourg station reclaimed the original CFMX calls. All music programming originates from Toronto, although the Cobourg station has some local programming.[6][7]
CFMZ was originally owned by Znaimer's privately held MZ Media Inc. As part of a reorganization of Znaimer's media assets, the station was transferred to the publicly traded ZoomerMedia in 2010.[8]
