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AN/SPG-53

Description of the radar set, tactical-technical characteristics

Figure 1: AN/SPG-53

Figure 1: AN/SPG-53

Specifications
frequency: X-Band
pulse repetition time (PRT):
pulse repetition frequency (PRF): 1 000 Hz
pulsewidth (τ): 0.25 µs
receive time:
dead time:
peak power: 250 kW
average power: 62,5 W
instrumented range: 60 NM (≙ 110 km)
range resolution: 75 m
accuracy:
beamwidth: 1.6°
hits per scan:
antenna rotation:
MTBCF:
MTTR:

AN/SPG-53

AN/SPG-53 is operating in X-Band gun fire-control radar. The radar uses the conical scan technology for target tracking, later variants provide also monopulse tracking and sea state suppression, and the possibility of a target illumination with continuous-wave power for semi-active missile guidance. The diameter of the reflector is 1.52 m. The transmitters' power was later drastically reduced to protect the personnel in the gun director under the radar.

The AN/SPG-53 was developed in the early 1960s and replaced by the AN/SPG-60 or AN/SPQ-9 in the early 1970s.