[1] Prior to its launch, CBC Radio programming was aired by private affiliate CJCB 1270 and its shortwave relay CJCX 6.01 MHz (in the 49 m band).
[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.
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).