KOKF is an Air1 affiliate Christian CHR radio station serving the Oklahoma City, Oklahoma, area and is owned by Educational Media Foundation.
The station went on the air with a Christian Music format in October 1978. The station switched to Christian Contemporary in 1985 and was one of the first in the nation to adopt this format.
The station identified itself as Hit Music Radio 91 FM, during the day, from 6 a.m. to 7 p.m., while playing different assortments of Christian Pop, Alternative, Hip-Hop, and R&B.
During the night from 7 p.m. to midnight, except Friday and Saturday nights, it played Christian Rock and Alternative music, and identified itself as The Alternative Edge.
On Friday and Saturday nights it played Christian Techno, Trance, and Electronic Music. On Fridays the show was known as the Friday Night Party Mixx, later the Weekend Party Mixx, then Lifted Radio. On Saturday it was known as The Weekend Party Mix with host DJ Matt Lindsey. These shows lasted from 7 p.m. to midnight. Lifted Radio replayed from midnight to 5 a.m after it originally aired.