CKOB-FM is a French-language Canadian radio station located in Trois-Rivières, Quebec. Owned and operated by Cogeco, it broadcasts on 106.9 MHz using a directional antenna with an average effective radiated power of 60,000 watts and a peak effective radiated power of 100,000 watts (class C1). The station moved to the FM band on August 20, 2007 ; it was previously heard on the AM band, on 550 kHz, with a daytime power of 10,000 watts and a nighttime power of 5,000 watts as a class B station, using a directional antenna with slightly different daytime and nighttime directional patterns in order to protect various other stations on that frequency.