KSLR (630 AM) is a Class B regional radio station licensed to SAN ANTONIO, TX. Operating with 5 kW daytime power using a directional (different day/night patterns) antenna system with 8 towers. At night it operates at 4 kW. After sunset, skywave propagation can extend the signal across much of the surrounding region. The station is owned by Salem Media Group. It broadcasts a Christian radio format.