CBR (AM)
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| City | Calgary, Alberta |
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| Broadcast area | Southern Alberta |
| Branding | CBC Radio One |
| Frequency | 1010 KHz (AM) |
| First air date | October 1, 1964 |
| Format | Public broadcasting |
| Power | 50,000 watts |
| Class | A |
| Transmitter coordinates | 50°56′17″N 113°57′42″W / 50.938056°N 113.961667°W |
| Owner | Canadian Broadcasting Corporation |
| Sister stations | CBR-FM, CBRF-FM, CBCX-FM, CBRT-DT, CBRFT |
| Website | CBC Calgary |
CBR is a Canadian clear-channel radio station, broadcasting at 1010 AM in Calgary, Alberta. It broadcasts the programming of the CBC Radio One network. CBR's studios are located on Westmount Boulevard Northwest just west of downtown Calgary, while its transmitters are located in Southeast Calgary.
CBR's daytime signal covers most of the southern two-thirds of Alberta. It can be heard at city-grade strength from Red Deer to Lethbridge, and provides secondary coverage as far as Edmonton to the north and several counties on the Montana-Alberta border to the south. At night, it covers most of the western half of North America.
As of spring 2013, CBR was the second most listened-to radio station, the most listened-to AM radio station, in the Calgary market.
The station was launched in 1964. Before then, Calgary had been one of the last major markets in Canada without an owned-and-operated CBC radio station. Originally, Calgary's CBC outlet had been private affiliate CFAC. From 1948 to 1964, CBX in Edmonton doubled as Calgary's CBC station as well, serving the southern two-thirds of the province from its transmitter at Lacombe (halfway between the two cities). The new station took over CBX's old frequency at 1010 AM and its clear-channel designation, while CBX was reoriented to be Edmonton's CBC station. The call sign CBR was previously used by CBC Radio Vancouver from 1937 to 1951.
On March 16, 2006, the Canadian Radio-television and Telecommunications Commission (CRTC) approved an application by the station to implement a new, "nested" FM transmitter in Calgary itself to simulcast the AM programming, due to the AM signal's poor reception in some parts of the city. This new FM signal, CBR-1-FM (99.1 MHz) was launched on November 28, 2006. In recent years, the CBC has branded 99.1 as the main transmitter, even though 1010 AM is technically the main station.
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