The AN/TPS-77 is a solid-state, 3-D long-range surveillance radar developed by Lockheed Martin for the US Armed Forces. With a 360-degree azimuth coverage, the AN/TPS-77 provides superior long-range detection, especially in bad weather conditions and clutter. It can operate 24 hours a day, even with no on-site personnel. Simplified logistics and remote maintenance-monitoring capabilities reduce contribute to low cost of ownership. The AN/TPS-77 also provides accurate target data at ranges up to 250 nautical miles and elevations up to 100,000 feet.
The AN/TPS-77 is a tactical transportable radar system which has the same proven features of its sister products, the AN/TPS-59(V)3 and the AN/FPS-117. It also offers solid-state, active phased array; superior performing L-band operation; modular, commercial-off-the-shelf components; advanced pencil-beam architecture; simplified maintenance.