WTMK (88.5 FM) is a non-commercial educational (NCE) radio station licensed to WANATAH, IN. Broadcasting with an effective radiated power of 3.4 kW and antenna height of 118 meters HAAT, its signal reaches approximately 58 km to the radio horizon. The station broadcasts in HD Radio digital format. The station is owned by Olivet Nazarene University. It broadcasts a Christian adult contemporary format.
