CBJX-FM is a French language Canadian radio station located in Saguenay, Quebec. Owned and operated by the Canadian Broadcasting Corporation, it broadcasts on 100.9 MHz with an effective radiated power of 50,000 watts (class B) using an omnidirectional antenna. The station's call sign used to be CBJ-FM until 1999. At that time, that call sign started to be used by its sister station CBJ as it moved to FM; that station got the call sign CBJ-FM, and the old CBJ-FM thus had to change its own call sign. CBJX-FM also has a rebroadcast transmitter in Dolbeau-Mistassini at 90.9 FM.