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KRTU-FM (91.7 FM) is a radio station broadcasting a mainstream Jazz format. Licensed in San Antonio, Texas, USA, the station serves the San Antonio area. The station is owned by Trinity University. Between 10 p.m. and 5 a.m., the station format changes from mainstream jazz to alternative and indie rock. KRTU 91.7 is a resource of the Department of Communication that supports the academic curriculum while demonstrating Trinity University’s leadership in education and the arts.