ckoi-fm long had the highest power output of any radio station in canada, and the second highest power in north america, only exceeded by 93.7 wbct in grand rapids, michigan which operates with 320,000 watts. unlike other north american superpower fm stations which have lowered their power since the 1990s, ckoi-fm always protected its 307,000-watt signal. as a result, when industry canada advised the station in 2004 that it was not compliant with updated code 6 safety regulations (which deal with acceptable levels of radiation), owner corus entertainment invested in making the transmitter compliant, instead of taking the "easy way" out, which would have been in this specific case to reduce power to "only" 122,800 watts.