WKAI is a 25,000 watt FM radio station on 100.1 kHz in Macomb, Illinois, in west-central Illinois. WKAI has been on the air since June 6, 1966. It is owned by Nancy L. Foster via Colchester Radio, Inc., and part of husband-and-wife company Prestige Communications.Survey after survey shows K-100 to be the most popular radio station in McDonough County.