In 1964, KJSK-FM 101.1 joined KJSK, offering a second outlet; as with several other Heart of the Nation operations, in 1977, the FM changed to beautiful music as KOXI before a 1984 flip to adult contemporary under its present KLIR call letters. An FM station had been provided for in the construction of KJSK's tower in 1947. Alongside the religious programming that served as KJSK's mainstay, the station was known for airing polka music programming.
In 1964, KJSK-FM 101.1 joined KJSK, providing a second outlet; similar to other Heart of the Nation stations, in 1977, the FM switched to beautiful music as KOXI before a 1984 flip to adult contemporary under its present KLIR call letters. A separate FM station was included in the construction of KJSK's tower in 1947. Alongside the religious programming that formed KJSK's core, the station was renowned for broadcasting polka music programming.