The station was assigned the KTWA call letters by the Federal Communications Commission on July 18, 1983.[2] The station has been running an adult contemporary format since the station signed on in December 1984. When the station signed on, it was originally an affiliate of CBS Radio until 1988 when the station subscribed to Satellite Music Network's "Starstation" AC format for several years. Its signal was updated from Class A to Class C3 in December 1990, and in its later years, it was downgraded to C2.