WISU is a non-commercial, educational radio station licensed to Indiana State University in Terre Haute, Indiana. The station operates on the assigned FM frequency of 89.7 MHz with an effective radiated power of 13,500 watts. The studios are located in Dreiser Hall on the ISU campus. The tower and transmitter facilities are located in West Terre Haute, Indiana. WISU began broadcasting on April 1, 1964. WISU is licensed by the U.S.