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WF-44

Description of the radar set, tactical-technical characteristics

Figure 1: WF-44

Figure 1: WF-44

Specifications
frequency: 2 800 … 2 900 MHz
(S-Band)
pulse repetition time (PRT):
pulse repetition frequency (PRF): 275 or 400 Hz
pulsewidth (τ): 0.35 or 1.5 µs
receive time:
dead time:
peak power: 650 kW
average power:
instrumented range: 200 km
range resolution:
accuracy:
beamwidth:
hits per scan:
antenna rotation:
MTBCF:
MTTR:

WF-44

The Plessey WF-44 was operating in S-Band wind finding radar. It was primarily used for tracking weather balloons and measuring wind speed and direction, but it was also capable of measuring rainfall intensity. The speed and direction of upper winds are accurately measured to the 100,000-foot level. The radar used the conical scan to determine the exact target direction. The antenna was a parabolic reflector with the diameter of 2.4 m fed by an offset Cutler-feed.

The WF-44 radars were installed since 1965 and were in service for about 35 years.