CBN (AM)

CBN

St. John's, Newfoundland and Labrador
Broadcast area	Southern and Southeastern Newfoundland
Frequency	640 kHz (AM)
Branding	CBC Radio One
Programming
Format	News/Talk
Ownership
Owner	Canadian Broadcasting Corporation
Sister stations	CBN-FM, CBNT-DT
History
First air date	November 14, 1932[1]
Former call signs	VONF (1932–1949)
Former frequencies	1195 kHz (1932–1939)
Call sign meaning	Canadian Broadcasting Corporation Newfoundland
Technical information
Class	A (clear-channel)
Power	10,000 watts
Transmitter coordinates	47°34′8″N 52°48′45″W / 47.56889°N 52.81250°W / 47.56889; -52.81250
Repeater(s)	see main article
Links
Website	CBC Newfoundland and Labrador

CBN (640 kHz) is a public AM radio station in St. John's, Newfoundland and Labrador, Canada. It carries a news, talk and information format and is the local Radio One station of the Canadian Broadcasting Corporation.

CBN transmits 10,000 watts, and is a Class A station broadcasting on a clear-channel frequency, shared with KFI in Los Angeles, the dominant station on 640 AM. CBN uses a non-directional antenna located off Thorburn Road near Exit 44 of the Outer Ring Road on the Trans-Canada Highway.^[2] With its non-directional signal and low dial frequency, CBN can be heard by day around most of Southeastern Newfoundland. At night, it can be picked up across much of the eastern half of North America with a good radio, but is strongest in Atlantic Canada and Eastern Quebec.

CBN programming is also heard in St. John's on CBN-1-FM on 88.5 MHz.^[3] For listeners who have trouble picking up CBN 640's signal clearly in the downtown area, this "nested rebroadcaster" provides an alternative. CBN-1-FM has an effective radiated power (ERP) of 3,162 watts.^[4] This station is not to be confused with CBN-FM on 106.9 MHz, which carries the CBC Music network, or its rebroadcaster CBN-FM-1 on 90.7 MHz in Grand Falls-Windsor.