CBW (AM)
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| City | Winnipeg, Manitoba |
|---|---|
| Broadcast area | Southern Manitoba |
| Branding | CBC Radio One |
| Frequency | 990 kHz (AM), 89.3 MHz (FM) |
| First air date | 1923 |
| Format | public broadcasting |
| Audience share |
 13.8% - Rank: 1 |
| Power | 50,000 watts day 46,000 watts night (2800 watts on FM simulcast) |
| Class | A (clear-channel) |
| Transmitter coordinates | 49°50′10″N 97°30′46″W / 49.83611°N 97.51278°W |
| Callsign meaning | Canadian Broadcasting Corporation Winnipeg |
| Owner | Canadian Broadcasting Corporation |
| Sister stations | CBW-FM, CBWT-DT, CKSB, CKSB-FM, CBWFT-DT |
| Website | CBC Manitoba |
CBW is the call sign of the CBC Radio One station in Winnipeg, Manitoba. The station broadcasts at 990 kHz on AM. CBW is a Class A clear channel station reserved for Canada under the North American Regional Broadcasting Agreement allocations.
Due to the station's transmitter power and Manitoba's mostly flat land (with near-perfect ground conductivity), it reaches almost all of southern Manitoba during the day and much of the middle portion of North America at night. In addition, the station is simulcast on a low-power FM station at 89.3 MHz.
The station first signed on in 1923 as CKY, owned and operated by the Manitoba Telephone System. It became a partial affiliate of the Canadian Radio Broadcasting Commission in 1933, and was purchased outright by the Canadian Broadcasting Corporation (CBC) in 1948. The station adopted its current call sign a few months after the CBC purchase, and the CKY call sign was reassigned to a new commercial radio station.
CBW was part of the Trans-Canada Network, which was the main CBC radio network, while CKRC carried programming from the Dominion Network between January 1, 1944 and 1962.
The transmitter was originally located in Carman, Manitoba. On February 3, 1952, a small plane with 3 passengers struck the Carman tower, due to heavy fog. None of the passengers survived. In November 1964, CBC opened a centralized antenna, and transferred the CBW signal to Starbuck, Manitoba. On October 15, 1993, CBW began broadcasting from a transmitter site in Springstein, Manitoba, while CBW-FM's 98.3 signal remained at the Starbuck tower.
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