KOSC (89.9 FM) is a non-commercial educational (NCE) radio station licensed to ANGWIN, CA. Broadcasting with an effective radiated power of 800 watts and antenna height of 1187 meters HAAT, its signal reaches approximately 155 km to the radio horizon. It operates a network of 2 translator(s) extending its coverage area. The station is owned by University of Southern California. It broadcasts a Classical music format.