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CIDR-FM

CIDR-FM
CIDR-FM.png
City Windsor, Ontario
Broadcast area Windsor, Ontario / Detroit, Michigan
Branding 93-9 The River
Slogan Real Rock Variety
Frequency 93.9 MHz
First air date September 1948
Format adult album alternative
ERP 79,600 watts average
100,000 watts peak
HAAT 188.5 meters (618 ft)
Class C1
Facility ID 124896
Transmitter coordinates 42°10′15″N 82°29′59″W / 42.17083°N 82.49972°W / 42.17083; -82.49972
Callsign meaning C WInDsoR
or
C I Detroit's River
Former callsigns CKLW-FM (1991-1993)
CKMR (1988-1991)
CKLW-FM (1986-1988)
CKEZ (1985-1986)
CFXX (1984-1985)
CKJY (1982-1984)
CKLW-FM (1949-1982)
Owner Bell Media
(Bell Media Windsor Radio Partnership)
Sister stations CHWI-DT, CIMX-FM, CKLW, CKWW
Webcast Listen Live
Website www.939theriverradio.com

CIDR-FM is the callsign for a radio station, broadcasting at 93.9 FM in Windsor, Ontario. The station broadcasts an adult album alternative format using the brand name 93-9 The River. It is owned and operated by Bell Media. It is one of the few commercial adult album alternative stations in Canada and is the only one in Ontario, with the others located in British Columbia. It was also Canada's first AAA-formatted station at launch.

The station was originally launched by Western Ontario Broadcasting in 1949 as CKLW-FM, rebroadcasting the CBC Dominion Network programming of sister station CKLW. It dropped the CBC affiliation in 1950 with the sign-on of CBE-AM 1550, and became the Metro Detroit outlet of the Mutual Broadcasting System.

The stations were subsequently acquired in 1956 by a consortium including the American company RKO; RKO subsequently acquired full ownership of the stations in 1963. Also that year, CKLW-FM began airing distinct programming from its AM sister station. It originally broadcast two hours of separate programming each evening from 7 to 9 p.m., and in 1967, this was expanded to six hours per night (from 6 p.m. to midnight).

In 1970, due to the Canadian Radio-television and Telecommunications Commission's new rules on foreign ownership of Canadian media, RKO was forced to sell the stations to Baton Broadcasting. Under Baton's ownership, CKLW-FM had by 1973 completely separated programming from its successful Top 40 AM sister, airing a country music format with news and talk oriented toward the Windsor audience (as opposed to the AM, which chiefly targeted the American side). During the 1970s, CKLW-FM was known as "FM Nine Four." In January 1982, the station changed its callsign to CKJY, airing a big band/adult standards/jazz format.


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