AN/GPS-T4 Radar Simulator

The AN/GPS-T4(v), built by The Marquardt Corporation, simulated 12 individually controllable (speed, altitude, bank, climb and turn rates plus IFF) radar targets that could be superimposed on top of live data in sync with the search radar. Each target`s characteristics were controlled by a plug in module that limited the performance to a specific type of aircraft, ie. F-102, F-94, MiG 15, etc. Radar operators sat at the T4 consoles to control the simulated targets and were able to communicate, as if they were pilots, with the GCI controllers via a patch into the GATR audio lines.