KZOY is a daytime-only AM station licensed for 500 watts on 1520 kHz at Sioux Falls, South Dakota. Daytime-only operation protects clear-channel stations KOKC at Oklahoma City and WWKB at Buffalo, New York. It also broadcasts on FM translator K227CZ 93.3 FM in Sioux Falls from its transmitter site near the intersection of West Madison and Marion Roads.