A Radar Station requires little power to run. It can track incoming missiles, EMP Towers and other Radar Stations nearby. It can also track Rockets from Galacticraft. It also tells you the x and z of it, so you can launch a missile at it. If it's a missile, then you can activate your EMP Tower or launch Anti-Ballistic Missiles to disarm or destroy the incoming missile. Radar can also track your own missiles, allowing you to confirm successful mid-air collisions or enemy radar kill. The Radar Station can not disrupt a missile by itself, but it can send a redstone signal to Siren, EMP Tower or Control Panel of your missile launchers.