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Type 974

Description of the radar set, tactical-technical characteristics

Figure 1: Type 974

Figure 1: Type 974

Specifications
frequency: 9 345 … 9 405 MHz
(X-Band)
pulse repetition time (PRT):
pulse repetition frequency (PRF): 1000 Hz
pulsewidth (τ): 0.14 or 0.26 µs
receive time:
dead time:
peak power: 7 kW
average power:
instrumented range: 25 NM (≙ 46 km)
range resolution:
accuracy: 2%
beamwidth: 1.6°
hits per scan:
antenna rotation: 24 min⁻¹
MTBCF:
MTTR:

Type 974

Type 974 is operating in X-Band surface search radar used for pilotage and navigation. It is the Commercial Decca Marine Radar Type 12, modified for service use.

The antenna of type AKL consists of a separated for transmitting and receiving reflector unit, the pedestal unit and motor scanner drive. It houses the R.F. head including the modulator, transmitter and the R.F. section of the receiver.