KRBX (89.9 FM) is a Class C2 medium-power non-commercial educational (NCE) radio station licensed to CALDWELL, ID. Broadcasting with an effective radiated power of 7.9 kW and antenna height of 449 meters HAAT, its signal reaches approximately 100 km to the radio horizon. The station broadcasts in HD Radio digital format. It operates a network of 1 translator(s) extending its coverage area. The station is licensed to BOISE COMMUNITY RADIO PROJECT, INC.