KDRI (830 AM) is a Class B regional radio station licensed to TUCSON, AZ. Operating with 50 kW daytime power using a directional (different day/night patterns) antenna system with 4 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 Bustos Media. It broadcasts a Oldies format.