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City of license Saint-Jean-sur-Richelieu, Quebec
Branding Boom FM
Slogan La radio des légendes
Frequency 104.1 MHz (FM)
First air date 1956
Format Oldies
Power 1350 watts
Class B
Owner Bell Media
Sister stations CFEI-FM
Website Boom FM 104.1

CFZZ-FM is a French language Canadian radio station located in Saint-Jean-sur-Richelieu, Quebec. Owned and operated by Bell Media, it is part of the Boom FM network. As such, the station has an oldies format.

Originally known as CHRS, the station operated on 1090 kHz as one of the very few daytime-only stations in Canada. Thanks to errors from BBM, CHRS once managed in the 1970s a third-place in ratings during evenings—a time when the station was not even on the air. The station added nighttime service in 1988 when it moved to 1040 kHz,[1] While the 1090 kHz frequency remains unused, the 1040 kHz frequency is now used by CJMS in Saint-Constant, just south of Montreal.

The station switched to FM and adopted its current call sign in 1992, going under the name "Z-104 Le Rocker Sympathique".[2] Z-104 was a community radio station with a mainly adult contemporary format.

Power Corporation, which had owned the station since the early 1990s, sold Z-104 to Corus Entertainment in 2000. Ownership of the station changed hands again in 2005 when it was transferred to Astral Media as part of an exchange of assets between Corus and Astral.

Astral Media promptly dropped the Z-104 moniker. Community radio programs were abolished and the station was integrated to the Boom FM network.

CFZZ broadcasts on 104.1 MHz with an effective radiated power of 1,350 watts (class B) using an omnidirectional antenna.


  1. ^ Decision CRTC 86-796
  2. ^ Decision CRTC 92-674

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