KLRC began in late August 1983 as a 100 watt station serving only the John Brown University campus and the immediate community. Located at 90.3 FM, the station was housed in the Cathedral of the Ozarks on the JBU campus. Its primary purpose was to serve as a training ground for JBU broadcasting students. In the fall of 1988, the U.S. Federal Communications Commission approved a power increase to 3,100 watts effective radiated power. With the higher power, the FCC also changed the frequency of KLRC from 90.3 to 101.1 FM. KLRC continued to see steady growth through the early 1990s. The number of listeners increased, and the donations received at each annual on-air fundraiser increased as well. In January 1996, KLRC began broadcasting 24 hours a day. In 2000, the sixty-year-old tower that KLRC had been broadcasting from was allowed to fall as the station began broadcasting from a new tower and transmitter. And, in September of that year, KLRC debuted worldwide with its live internet stream. In 2002, KLRC moved out of the Learning Resource Center and into its own building on the west end of the John Brown University campus, giving the station more room to expand. By July 2005, KLRC began broadcasting 23 hours of locally generated music programming each weekday. The station also added a new "Family Hour" each weeknight, comprising two family-oriented talk shows. The studios were moved again in the summer of 2011, this time to a building located off-campus in downtown Siloam Springs. The station's growth has continued, as the station went from one full-time employee in 1996 to ten full-time and several part-time staff as of 2019. In February 2013, KLRC launched a new 100,000 watt station at the frequency 90.9 FM. The new tower is located a few miles west of West Siloam Springs, Oklahoma, and the station is licensed to Tahlequah, Oklahoma. The station in Siloam Springs at the 101.1 FM frequency changed call-signs to KLAB, and now simulcasts with 90.9 FM.
On-air staff
Mark Michaels and Keri Lynn are the station's morning hosts. Ansen Bayer and Kara Culver are the afternoon show hosts. Isaac Weaver is the midday host, and Sean Sawatzky is the evening host. A variety of part-time staff and John Brown University broadcasting students fill the remaining on-air roles.
