1974
Radio Centre-Ville Saint-Louis was liceneced October 21 to operate a new (multilingual) community FM station at Montreal, on 99.3 MHz with effective radiated power of 7,200 watts.

1975
CINQ-FM signed on the air on January 27.

1976
CINQ received approval to move to 102.3 MHz with an effective radiated power of 36 watts. The change was requested to allow for the operation of a new station (CIME-FM) that would serve Ste-Adele and the Laurentians, on 99.5 MHz.

1985
CINQ was given approval to increase effective radiated power from 36 to 50 watts and to relocate the transmitter approximately 2 kilometers from the actual site.

1988
Radio Centre-Ville Saint-Louis was denied an increase in effective radiated power for CINQ. The station had proposed to up power from 50 to 1,545 watts.

1990
CINQ 102.3 was granted a power increase to 1,545 watts. 

1991
A power decrease to 1,285 watts was approved.

Note: CINQ either went on the air on 102.3 MHz rather than the originally licenced 99.3, or changed frequency in the very early years of operation.                                                            

                                                                         Updated by Bill Dulmage - May, 2008