Founded in 1976, KRTU is a non-commercial educational, nonprofit radio station under Trinity’s 501(c)(3). KRTU programs a 17-hour/day mainstream jazz format, with alternative/indie rock overnight. The broadcast reaches throughout the San Antonio metropolitan area and into adjoining townships. KRTU is available in HD terrestrially and can be streamed worldwide on the Internet. The station employs a full-time staff of six, while students and community volunteers support the operations throughout the year.