KTRS (550 AM) is a Class B regional radio station licensed to ST. LOUIS, MO. Operating with 5 kW daytime power using a directional (different day/night patterns) antenna system with 4 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 KTRS-AM License, L.L.C. It broadcasts a Talk radio format.