Wikipedia
WJJK
WJJK (104.5 MHz) is a commercial FM radio station licensed to Noblesville, Indiana, and broadcasting to the Indianapolis metropolitan area. WJJK is owned by Cumulus Media and airs a classic hits format which leans toward classic rock. Its studios are on North Shadeland Avenue on the east side of Indianapolis, and the transmitter site is nearby Butler University which once owned the station.
WJJK is licensed to broadcast in the HD radio (hybrid) format.