The Navtech Site Security System NS3-CT is designed to provide automatic perimeter security for airports, ports, large industrial sites, and other high value installations. Using a networked array of overlapping Navtech security radar, the whole perimeter and internal area can be monitored from a single central control and display unit. With the addition of the CCTV interface, targets can be tracked and viewed without any user interaction. Based on the Navtech 'W series' security radar, the NS3-CT monitors stationary and moving targets up to a range of 800 meters from each sensor, in all weather and light conditions.