CKBI began broadcasting as 10BI in 1930 on 250 metres. In 1933, 10BI became a commercial station, adopting its current callsign and moved to 1210 AM. CKBI has been operating at its current frequency of 900kHz since 1941.
At nighttime, this signal can be heard over South Central Canada and North Central US. It has been picked up as far south and west as Central Washington state. CKBI is non-directional daytime and directional nighttime using a two-tower array.