CityEdmonton, Alberta
Broadcast areaNorthern Alberta
Frequency740 kHz (AM)
BrandingCBC Radio One
OwnerCanadian Broadcasting Corporation
First air date
Former frequencies
1010 kHz (1948-1964)
Call sign meaning
Canadian Broadcasting Corporation X
Technical information
Power50,000 watts
Transmitter coordinates
53°19′10″N 113°26′43″W / 53.31944°N 113.44528°W / 53.31944; -113.44528
WebsiteCBC Edmonton

CBX is a Canadian radio station, broadcasting at 740 AM in Edmonton, Alberta. It broadcasts the programming of the CBC Radio One network. CBX is a Class B station broadcasting on a Canadian clear-channel frequency; the dominant station on 740 AM is CFZM in Toronto, Ontario. CBX's studios are located at Edmonton City Centre on 102nd Avenue Northwest in downtown Edmonton, while its transmitters are located near Beaumont.

It is the 3rd most listened-to radio station in the Edmonton market for the ratings period ending February 23, 2020[1]


The station was originally launched in 1948 on 1010 AM. It served the southern two-thirds of Alberta, including Edmonton and Calgary, from a single 50,000-watt transmitter site at Lacombe, near Red Deer, roughly halfway between Edmonton and Calgary. Prior to its launch, CBC Radio programming aired in Edmonton on private affiliate CFRN. In 1953, with signal reception in the city deteriorating, the rebroadcaster CBXA was launched on 740.

In 1964, the CBC launched separate radio services in Edmonton and Calgary. CBX was reoriented to be Edmonton's CBC station, and its transmitter was relocated to Beaumont on CBXA's frequency of 740. CBR signed on as Calgary's CBC outlet, using CBX's old frequency of 1010 AM.

In 2004, CBC Edmonton operations moved into a new digital broadcast facility downtown, bringing all operations of Radio and TV under one roof. The old TV facility on 75th Street had 70,000 square feet (6,500 m2), while the Radio building on 51st Ave. had 48,000 square feet (4,500 m2). The new combined facility has 38,700 total square feet. It is located at the Edmonton City Centre, on Winston Churchill Square.

On March 16, 2006, the Canadian Radio-television and Telecommunications Commission approved the station's application to add a nested FM transmitter at 93.9 MHz in Edmonton to simulcast the AM programming.[2] This relay, CBX-2-FM, officially began April 20, 2007.

Local programming

Local programs produced by CBX include Edmonton AM, and Radio Active. CBX also produces half-hourly news bulletins between 5:30 AM and 6:00 PM each weekday. Provincial or national news bulletins air on CBX outside of those hours.

CBX also produces two music shows for the entire CBC radio networks: Saturday Night Blues and Canada Live air nationally on CBC Radio One/Sirius 137 and CBC Music, respectively.

The last few BBM radio ratings measurements have shown CBX steadily climbing in audience share in Edmonton. As of the spring 2009 BBM measurement, CBX is the second-most listened to radio-station in Edmonton, behind news-talk radio station CHED. Edmonton AM also ranks second in the morning, while Radio Active ranks fourth amongst the afternoon radio drive-time shows.[3]


Rebroadcasters of CBX
City of license Identifier Frequency Power RECNet
Bonnyville CBX-1-FM 92.9 FM 55,500 watts Query
Chateh CBXA-FM 103.5 FM 983 watts Query
Edmonton CBX-2-FM 93.9 FM 3,931 watts Query
Edson CBXD-FM 95.3 FM 50 watts Query
Fort McMurray CBXN-FM 99.3 FM 20,000 watts Query
Fort Vermilion CBXF-FM 105.1 FM 50 watts Query
Fox Creek CBXV-FM 91.3 FM 38 watts Query
Fox Lake CBXK-FM 96.9 FM 425 watts Query
Grande Cache CBXC-FM 92.3 FM 50 watts Query
Grande Prairie CBXP-FM 102.5 FM 100,000 watts Query
High Level CBXL-FM 99.5 FM 50 watts Query
Hinton CBXI-FM 88.1 FM 3,000 watts Query
Jasper CBXJ-FM 98.1 FM 259 watts Query
John D'Or Prairie CBXH-FM 102.5 FM 230 watts Query
Manning CBXM-FM 100.5 FM 13,500 watts Query
Peace River CBXG-FM 93.9 FM 822 watts Query
Rainbow Lake CBXW-FM 101.5 FM 50 watts Query
Swan Hills CBXS-FM 91.5 FM 88 watts Query

On September 10, 2012, the CBC applied to move the following CBC low-power AM transmitters to FM. The CBC received approval on January 31, 2013 to convert the remaining AM transmitters to FM and the new transmitters will operate on these following frequencies:[4]

On October 25, 2013, the CRTC approved the CBC's application to delete the following low-power AM transmitter, CBXH John D'Or Prairie. An FM transmitter operates at 102.5 as CBXH-FM.[6]

The AM transmitters were deleted once the new FM transmitters commenced operation.


  1. ^ http://assets.numeris.ca/Downloads/2019-20_03_Radio_ME_EdmontonToplineRadio.pdf
  2. ^ Broadcasting Decision CRTC 2006-84
  3. ^ http://www.cbc.ca/edmonton/features/cbcratings/
  4. ^ Broadcasting Decision CRTC 2013-31, CBX Edmonton – New transmitters in Edson, Grande Cache, High Level, Fort Vermilion and Rainbow Lake, CRTC, January 31, 2013
  5. ^ Decision CRTC 86-369
  6. ^ Broadcasting Decision CRTC 2013-566, Various radio stations – Deletion of rebroadcasting transmitters, October 25, 2013