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CTKO-FM 100 dot 9 Big Dog logo.svg
Broadcast areaTruro, Nova Scotia
BrandingBig Dog 100.9
SloganBig Dog rocks!
Frequency100.9 MHz (FM)
First air dateMarch 1965 as CKCL-FM
before 2001 as The MIX
2001 as EZ Rock
2002 as Big Dog
FormatActive rock
ERP50 kWs
horizontal polarization only
HAAT240 meters (790 ft)
Callsign meaningC K TrurO
OwnerBell Media
(Bell Media Radio G.P.)
Sister stationsCKTY-FM
WebcastListen live
WebsiteBig Dog 100.9

CKTO-FM is a Canadian radio station, broadcasting at 100.9 FM in Truro, Nova Scotia. The station plays an active rock format and is branded as Big Dog 100.9. The station has been on the air since 1965.

The station is owned by Bell Media which also owns sister station CKTY-FM as well as six other radio stations in the Atlantic provinces.


The station first began broadcasting in March 1965 originally as CKCL-FM before adopting its current call letters. The station's original call letters were later used on a Chilliwack, British Columbia radio station serving the Greater Vancouver area. The station was a CBC Radio affiliate until February 4, 1982. The station was owned and operated by Radio Atlantic Ltd before it was purchased by Telemedia in 1999 and by Astral Media in 2002 and then Bell Media in 2013. CKTO-FM was originally known as Mix 100.9 FM (100.9 The Mix) before it adopted the EZ Rock branding in 2001 and became known as EZ Rock 100.9 FM and adopted its current branding as Big Dog 100.9 one year later. The station's current music format is active rock.


Ezrock ckto.png CTKO-FM 100 dot 9 Big Dog logo.svg
2001–2002 2002–present

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Coordinates: 45°33′16″N 63°13′23″W / 45.55444°N 63.22306°W / 45.55444; -63.22306