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AN/FPQ-16

Description of the radar set, tactical-technical characteristics

Figure 1: AN/FPQ-16

Figure 1: AN/FPQ-16

Specifications
frequency: 420 … 450 MHz
(UHF-band)
pulse repetition time (PRT): 50 ms
pulse repetition frequency (PRF): 20 Hz
pulsewidth (τ): 2.5 ms
receiving time:
dead time:
peak power: 14.4 MW
average power: 715 kW
instrumented range: 2,300 NM (≙ 3,700 km)
range resolution: 50 m
accuracy:
beamwidth:
hits per scan:
antenna rotation:
MTBCF:
MTTR:

AN/FPQ-16

AN/FPQ-16 (Perimeter Acquisition Radar Attack Characterization System, PARCS) is operating in the UHF-band phased-array radar system located at Cavalier Space Command Base in North Dakota, (48°43'30.0" N   97°54'00.0" W) and analyzes more than 20,000 tracks per day, from giant satellites to space debris. The radar was activated in 1975 as part of the US Army’s Safeguard anti-ballistic missile system. After the modernization, it continued to serve as an element of the missile attack warning system.

The radar, computer, communications equipment, and operations rooms are housed in a reinforced multi-story concrete building. The singlefaced phased array is pointed northward over the Hudson Bay. The antenna face slopes from the side of the building at a 35-degree angle. The antenna consists of 6888 radiating elements fed by 128 traveling wave tubes. The waveform is linear frequency modulated and provides pulse compression with a compression ratio of 1:100.