AN/TPS-70

The AN/TPS-70 is a mobile 3D phased array air defense radar manufactured by Northrop Grumman in the United States. Operating in the S-band (IEEE designation) or E/F-band (NATO designation) with a frequency range of 2900-3000 MHz, it is designed to detect and track hostile aircraft up to an instrumented range of 450 km. The radar employs a 5.5 m wide by 2.54 m high flat-slotted array antenna with 36 waveguides, each containing 98 slots, rotating at 6 revolutions per minute. Its multiple beam architecture, featuring six simultaneous beams and a redundant channel, enhances target detection and clutter rejection, while the transmitter utilizes a pulsed twystron as its power output stage, delivering a peak power of 3.5 MW and an average power of 6.2 kW with a pulsewidth of 6.5 µs and a pulse repetition frequency of 250-275 pps. The AN/TPS-70 provides both raw (plots) and processed (tracks) data, offering automated clutter mapping, plot extraction, IFF decoding/correlation, and the ability to track up to 500 targets simultaneously, even in jamming and high-clutter environments. The system, a successor to the AN/TPS-43, consists of the main antenna, a secondary antenna, and an operations/electronics shelter, deployable as two modules for transport by truck, aircraft, or helicopter.

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