KRDU (1130 AM) is a Class B regional radio station licensed to DINUBA, CA. Operating with 5 kW daytime power using a directional (different day/night patterns) antenna system with 4 towers. At night it operates at 6 kW. After sunset, skywave propagation can extend the signal across much of the surrounding region. The station is owned by iHeartMedia, Inc. It broadcasts a Religious broadcasting format.