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"CFMU" redirects here. For Central Flow Management Unit as used in air traffic control, see Air traffic flow management.
Broadcast area Hamilton, Ontario
Frequency 93.3 MHz (FM)
First air date January 13, 1978
Format campus radio
ERP 166 W average
250 watts peak
vertical polarization only
HAAT 81 meters (266 ft)
Class A1
Callsign meaning The "MU" refers to McMaster University
Owner McMaster Students Union

CFMU-FM is a Canadian radio station, broadcasting at 93.3 FM in Hamilton, Ontario. It is a campus/community radio station owned and operated by the McMaster Students Union at McMaster University.


CFMU was launched on FM in 1978, broadcasting in mono at 50 watts. It had previously operated as a closed circuit station. In the early 1990s, faced with a wattage increase at nearby CFRU-FM in Guelph, CFMU upgraded to a 250 watt stereo transmitter, with a transmission tower originally located at Chedoke Hospital. Presently transmitting from a tower at Mohawk College shared with Mohawk's instructional station CIOI-FM, the station can be heard throughout much of Hamilton and Burlington, although their vertically polarized signal means the station can be heard farther on car radios.

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Coordinates: 43°15′49″N 79°55′04″W / 43.2636°N 79.9179°W / 43.2636; -79.9179