KTHO (88.1 FM) is a Class C2 medium-power non-commercial educational (NCE) radio station licensed to Dewey-Humboldt, AZ. Broadcasting with an effective radiated power of 1.6 kW and antenna height of 491 meters HAAT, its signal reaches approximately 104 km to the radio horizon. The station broadcasts in HD Radio digital format. The station is owned by International Aerospace Solutions, Inc. It broadcasts a Defunct (was Classic hits) format.