KMRB (1430 AM) is a Class B regional radio station licensed to SAN GABRIEL, CA. Operating with 50 kW daytime power using a directional (different day/night patterns) antenna system with 4 towers. At night it operates at 10 kW. After sunset, skywave propagation can extend the signal across much of the surrounding region. The station is owned by Multicultural Broadcasting. It broadcasts a Cantonese Americans format.