CJMB-FM (90.5 MHz) is a Canadian radio station branded as Freq 90.5, which is licensed to Peterborough, Ontario. The station is owned by My Broadcasting Corporation and it airs an Alternative Rock radio format. The station is a network affiliate of Sportsnet Radio and CBS Sports Radio. Weekdays it carries the Jim Rome Show from CBS Sports Radio, which also supplies late night programming. The studios and offices are on George Street in Peterborough. The transmitter is off Greencrest Drive.