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AN/APS-116

Description of the radar set, tactical-technical characteristics

Figure 1: AN/APS-116 radar of P-3B Orion in 1968

Figure 1: AN/APS-116 radar of P-3B Orion in 1968

Specifications
frequency: 9.5 … 10 GHz
(X-Band)
pulse repetition time (PRT):
pulse repetition frequency (PRF): 500 or 2000 Hz
pulsewidth (τ): 0.5 µs
receive time:
dead time:
peak power: 500 kW
average power:
instrumented range: 150 NM (≙ 280 km)
range resolution:
accuracy:
beamwidth:
hits per scan:
antenna rotation:
MTBCF:
MTTR:

AN/APS-116

AN/APS-116 was an operating in X-Band anti-submarine warfare (ASW) search radar. AN/APS-116 was able to detect a submarine periscope in 15.5 nautical miles.

The AN/APS-116 was designed to detect submarine periscopes and antennas in rough seas. The system's scanner is mounted in a nose radome, and the radar is integrated with the aircraft's data systems. The APS-116 was also used for navigation and surface search.

The APS-116 used a traveling-wave-tube (TWT) transmitter that drives a cross-field amplifier.