It signed on the air on June 1, 1983, and played the pop/rock format with George Calvin Booth as the station's program director and main on-air talent.
The station's general manager was Lee Jamison and program director was once again Kevin Sponsler, who served that position previously from 1995 to 2003.
The station was nearly sold to Jefferson Public Radio in the fall of 2010 in hopes of improving its signal in the Yreka area.
When rumors of the pending purchase were confirmed, the Siskiyou County Board of Supervisors voted against the sale and JPR withdrew its offer.
Effective July 19, 2022, KSYC-FM was officially purchased by Southern Oregon University and now broadcasts programming from Jefferson Public Radio.