WBAA (920 AM) is a Class B regional radio station licensed to WEST LAFAYETTE, IN. Operating with 5 kW daytime power using a directional (different day/night patterns) antenna system with 3 towers. At night it operates at 1 kW. After sunset, skywave propagation can extend the signal across much of the surrounding region. The station is owned by Metropolitan Indianapolis Public Media, Inc. It broadcasts a Public radio format.