KSFN (1510 AM) is a Class B regional radio station licensed to PIEDMONT, CA. Operating with 8 kW daytime power using a directional (different day/night patterns) antenna system with 4 towers. At night it operates at 2 kW. After sunset, skywave propagation can extend the signal across much of the surrounding region. The station is owned by Lazer Media. It broadcasts a Regional Mexican format.