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.
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.
Coordinates: 48°31′27″N 89°06′53″W / 48.52417°N 89.11472°W / 48.52417; -89.11472