CBU (AM)
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| City | Vancouver, British Columbia |
|---|---|
| Broadcast area | South Coast |
| Branding | CBC Radio One |
| Frequency | 690 kHz (AM) 88.1 MHz (FM) |
| First air date | 1925 |
| Format | public broadcasting |
| Power | 50,000 watts (AM) 97,600 watts (FM) |
| Class | B (AM) C (FM) |
| Transmitter coordinates |
49°08′19″N 123°11′56″W / 49.138744°N 123.198774°W (AM) 49°21′11″N 122°57′23″W / 49.353056°N 122.956389°W (FM) |
| Callsign meaning | CB VancoUver |
| Former callsigns | CNRV (1925-1933) CRCV (1933-1936) CBR (1936-1951) |
| Former frequencies | 1100 kHz (1925-1941) 1130 kHz (1941-1951) |
| Owner | Canadian Broadcasting Corporation |
| Sister stations | CBU-FM, CBUF-FM, CBUX-FM, CBUT, CBUFT |
| Webcast | Listen live |
| Website | CBC British Columbia |
CBU is a Canadian radio station, which airs the programming of the CBC Radio One network, in Vancouver, British Columbia. The station broadcasts on 690 AM (a clear channel frequency) and on 88.1 FM. CBU's newscasts and local shows are also heard on a chain of CBC stations around the Lower Mainland.
CBU's studios and offices are in the CBC Regional Broadcast Centre on Hamilton Street in Downtown Vancouver. The AM transmitter is in the Steveston section of Richmond, British Columbia and the FM transmitter is on Mount Seymour. CBU (AM) transmits at 50,000 watts, the highest power authorized by the Canadian Radio-television and Telecommunications Commission (CRTC), allowing it to be heard throughout Metro Vancouver and around the British Columbia Coast. But because CKGM Montreal is the dominant class A station on 690, CBU must use a directional signal to avoid causing interference.
The station was launched in 1925 as CNRV "The Voice of the Pacific" on AM 1100, owned by the Canadian National Railway radio network. CNRV was acquired by the Canadian Radio Broadcasting Commission in 1933, becoming CRCV. In 1936, the CBC was created, taking over the CRBC's operations, and CRCV became CBR. The station moved to AM 1130 in 1941 (see Canadian allocations changes under NARBA), and to 690 in 1952 when the call sign was changed to its current CBU. Power was increased from 10,000 watts to its present 50,000 watts in 1967 with a transmitter site move to the Steveston shoreline.
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