KLOK (1170 AM) is a Class B regional radio station licensed to SAN JOSE, CA. Operating with 50 kW daytime power using a directional (different day/night patterns) antenna system with 3 towers. At night it operates at 5 kW. After sunset, skywave propagation can extend the signal across much of the surrounding region. The station is owned by Punjabi Radio USA Inc. It broadcasts a Punjabi language talk and Punjabi music format.