In 1962, KCKG-AM began broadcasting on 1240 AM. In 1975 the frequency was changed to 980 AM and the call letters were changed to KVRN-AM. KVRN-AM was closed in 1999. KVRN-FM started Broadcasting in 1978 on 92.1. The call letters were changed to KHOS-FM in 1985. We broadcast Sonora Bronco Football Games and other school activities. The Sonora Broncos have 5 state championships 1966, 1968, 1970, 1971 & 2000. KHOS Is The Voice Of The Sonora Broncos & Lady Broncos.