Radio Rock 94 (CJSD-FM)

CJSD-FM is a Canadian radio station, broadcasting at 94.3 FM in Thunder Bay, Ontario. The station broadcasts an active rock format branded as Rock 94.

The station was launched in 1948 as CKPR-FM, an FM simulcast of CKPR. The station appears to have launched distinct programming sometime between 1966 and 1984. The callsign was changed to CJSD-FM in 1984.

The station hosts a one-hour radio show called Off the Grid on Tuesday nights at 10:00 pm. The programme plays a variety of alternative, underground and independent music not usually heard on Thunder Bay radio.

CJSD is heard across Lake Superior in the United States in Houghton and Keweenaw Counties in Michigan as well as the northeastern tip of Minnesota.