Listen to 94.3 Rev-FM (KRVL-FM), 99.1 Mike FM (KZAH-FM), and 103.7 The Buck (KAXA-FM) anytime, anywhere! The JAM Broadcasting phone app has players for each JAM Broadcasting station. Keep up to date with local news, JAM Broadcasting promotions, call the radio stations directly from the phone app, text into the radio stations directly from the phone app. Looking for local sports? The JAM Broadcasting app also has Kerr County, Gillespie County, Bandera County, and Kendall County sports information on the app.