WRSJ (1520 AM) is a Class B regional radio station licensed to SAN JUAN, PR. Operating with 25 kW daytime power using a directional (different day/night patterns) antenna system with 3 towers. At night it operates at 25 kW. After sunset, skywave propagation can extend the signal across much of the surrounding region. The station is owned by IBC-AERCO. It broadcasts a Talk radio format.