WPCA (800 AM) is a Class B regional radio station licensed to WAUPACA, WI. Operating with 5 kW daytime power using a directional (different day/night patterns) antenna system with 2 towers. At night it operates at 500 watts. After sunset, skywave propagation can extend the signal across much of the surrounding region. The station is owned by Donald Grassman and Keith Bratel. It broadcasts a Mainstream rock format.