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Cbc radio one sydney.svg
City Sydney, Nova Scotia
Broadcast area Cape Breton Island
Branding CBC Radio One
Frequency 1140 kHz (AM)
First air date November 1, 1948
Format public broadcasting
Power 10,000 watts
Class B
Transmitter coordinates 46°08′09″N 60°16′10″W / 46.13583°N 60.26944°W / 46.13583; -60.26944
Callsign meaning Cape Breton Island
Former frequencies 1570 kHz (1948-1955)
Owner Canadian Broadcasting Corporation
Sister stations CBI-FM
Website CBC Nova Scotia
Cbc radio one sydney 92-1.svg
City Sydney, Nova Scotia
Broadcast area Cape Breton Island
Frequency 92.1 MHz (FM)
First air date February 25, 2016
Power 6,540 watts
Transmitter coordinates 46°05′39.84″N 60°8′52.08″W / 46.0944000°N 60.1478000°W / 46.0944000; -60.1478000
Callsign meaning Cape Breton Island Sydney

CBI is a Canadian radio station. It is the CBC Radio One affiliate in Sydney, Nova Scotia broadcasting at 1140 kHz on the AM dial. The station serves all of Cape Breton Island by operating a network of FM rebroadcasters. It is also simulcast on its sister station, CBIS-FM at 92.1 MHz in Sydney.


CBI was launched on November 1, 1948, at AM 1570, with a power of 1,000 watts.[1] Prior to its launch, CBC Radio programming was aired by private affiliate CJCB 1270 and its shortwave relay CJCX-SW 6010 kHz (in the 49 m band). In 1955, CBI increased power from 1,000 to 5,000 watts and changed frequency from 1570 to 1140 kHz.[1]

By 1964, CBI was operating with a full-time power of 10,000 watts, though using a directional antenna at night[1] to protect clear-channel Class A stations WRVA in Richmond, Virginia; and XEMR-AM in Apodaca, Nuevo León, Mexico.

On July 9, 2007, CBI was given approval by the CRTC to convert the station to the FM band at 97.1 MHz under the call sign CBIT-FM and to shut down the AM transmitter.[2] In a license renewal submission to the CRTC in June 2011, CBC stated that it did not have the resources to implement the plan before the authorization lapsed.

On October 6, 2015, the CRTC approved the CBC's application for a nested FM transmitter in Sydney at 92.1 MHz with an average effective radiated power (ERP) of 6,540 watts (maximum ERP of 10,650 watts) and an effective height above average terrain of 122.8 metres. In its application the CBC stated that the FM transmitter would address increasingly evident reception issues with the 1140 signal in downtown Sydney,[3] as well as other areas where the 1140 signal is not sufficient, especially in fringe areas.[4] The CBC provided a map showing that CBI's nighttime pattern differs from its daytime pattern in that the night pattern directs the AM signal towards the northeast to protect other radio stations, resulting in a loss of reception in the area southwest of Sydney. The CBC argued that this problem is so severe that CBI's Radio One morning programming is also simulcast on its CBC Music transmitter in Sydney (CBI-FM 105.1) from 6 a.m. to 9 a.m. on weekdays to properly serve the population of Sydney while the nighttime pattern is still in effect. The CBC further stated that it had no plans to shut down its existing AM service because replicating it would require the addition of two rebroadcasting sites, one in the South Haven area and one in Ingonish (northwest of Sydney).[3]

The new call sign for 92.1 is CBIS-FM, while the call letters CBI-FM are currently used for CBC Music service. After a period of testing, the new FM transmitter officially went on the air at 8:00 am AST on February 25, 2016.[5]

Local programming[edit]

The station's local programs are Information Morning, hosted since 2007 by Steve Sutherland, broadcast weekday mornings from 6:00 a.m. to 8:37 a.m. and Main Street, from 4:00 p.m. to 6:00 p.m.in the afternoons, hosted since 1996 by Wendy Bergfeldt.[6] Although both programs have the same name as mainland counterpart CBHA-FM in Halifax, they are distinct programs produced in Sydney. A third long running local program is Island Echoes, a weekly program specializing in Cape Breton Island culture, on air since May 1971. Hosted by Wendy Bergfeldt since 1993,[6] Island Echoes is broadcast on Saturday evenings from 8:00 p.m. - 9:00 p.m.


CBI has the following rebroadcasters:

Rebroadcasters of CBI
City of license Identifier Frequency RECNet CRTC Decision
Bay St. Lawrence CBIB-FM 90.1 FM Query
Chéticamp CBIC-FM 107.1 FM Query
Sydney CBIS-FM 92.1 FM Query Decision CRTC 2015-455
Northeast Margaree CBHF-FM 93.9 FM Query Decision CRTC 85-1276
Inverness CBHI-FM 94.3 FM Query Decision CRTC 85-994

Station Coordinates[edit]

Map all coordinates using: OpenStreetMap 
Download coordinates as: KML · GPX


  1. ^ a b c CBI-AM (CBC Radio One), Sydney, Canadian Broadcasting Corp.
  2. ^ CBI Sydney – Conversion to FM band - Broadcasting Decision CRTC 2007-222
  3. ^ a b Broadcasting Decision CRTC 2015-455, CBI Sydney – New FM transmitter in Sydney, CRTC, October 6, 2015
  4. ^ CBC News: "CBC Cape Breton launches FM signal 92.1", February 25, 2016.
  5. ^ The Launch of 92.1 FM
  6. ^ a b Liz Doherty (2015). The Cape Breton Fiddle Companion. pp. 42, 202. ISBN 978-1-77206-026-3.
  7. ^ Decision CRTC 85-1276
  8. ^ Decision CRTC 85-994

External links[edit]

Coordinates: 46°5′39.9″N 60°8′51.9″W / 46.094417°N 60.147750°W / 46.094417; -60.147750