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AN/TPS-75 radars deployed at Tobyhanna Army Depot

The AN/TPS-75 is a transportable 3-dimensional passive electronically scanned array air search radar produced in the United States. It was originally designated the TPS-43E2. Although the antenna is a radically new design from the TPS-43, the radar van itself, which houses the transmitter, receiver processors, and displays is very similar to the older TPS-43E2. It is produced in the United States originally by Westinghouse Defense and Electronic Division, which was later purchased by Northrop-Grumman.

The AN/TPS-75 is the primary transportable Aerospace Control And Warning (AC&W) radar used by the United States Air Force. The TPS-75 is capable of transmitting 5-Megawatts of power. (Although 5-Megawatts is almost never achieved; realistically it is approx 2.8 Megawatts)

The AN/TPS-75 radar antenna packed on a 5-ton truck.

The entire system can be broken down and packed onto two M939 trucks for road transport and mobile air transport by planes such as the C-130 Hercules or bigger. The entire radar system can be "torn down" and ready for transport in just a few hours. This varies greatly with amount of personnel, their level of training and motivation, and methodology of transport. A typical convoy package would consist of one 5-ton truck pulling the radar van itself with the radar antenna in the bed of the truck and a support 5-ton pulling a AN/MJQ-1632 400 Hz power plant. The support truck would hold some spare parts, fuel tank(s), camouflage netting, and other logistical items as needed. The heat exchanger and -18 environmental control unit (ECU) are normally loaded into and transported within the radar van.

There are many add-ons for the TPS-75. One of which allows the AN/TPS-75 to be tilted back to see into the atmosphere assisting in detection of long range ballistic missiles.


  • Frequency Range 2.9 - 3.1 GHz (S-Band)
  • Peak Power: 2.8MW nominal
  • Pulse Width: 6.8μs
  • Range: 240nmi
  • Power Requirements: 120/208 VAC, 3 Ph, 400 Hz
  • Power Consumption: 52 Kilowatts

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