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AN/APS-45

Description of the radar set, tactical-technical characteristics

Figure 1: AN/APS-45

Figure 1: AN/APS-45

Specifications
frequency: 9 325 MHz
(X-band)
pulse repetition time (PRT):
pulse repetition frequency (PRF): 450 Hz
pulsewidth (τ): 1,8 µs
receiving time:
dead time:
peak power: 400 kW
average power: 356 W
instrumented range: 120 NM (≙ 220 km)
range resolution:
accuracy:
beamwidth:
hits per scan:
antenna rotation:
MTBCF:
MTTR:

AN/APS-45

AN/APS-45 was operating in the X-band airborne nodding height finding radar used originally in Lockheed EC-121. The radar is mounted in the dorsal radome.

The transmitter uses the magnetron type QK-172, and the radar modulator the thyratron type 5622.

The AN/APS-45 was operational in 1955. It was later replaced by the higher-range AN/APS-103 (160 NM).