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MM/SPQ-5

Description of the radar set, tactical-technical characteristics

Figure 1: MM/SPQ-5

Figure 1: MM/SPQ-5

Specifications
frequency: X-band
pulse repetition time (PRT):
pulse repetition frequency (PRF):
pulsewidth (τ):
receiving time:
dead time:
peak power: 2 MW
average power:
instrumented range: 200 NM (≙ 370 km)
range resolution:
accuracy:
beamwidth: 1,5°
hits per scan:
antenna rotation:
MTBCF:
MTTR:

MM/SPQ-5

MM/SPQ-5 “Sarchiapone” was an operating in the X-band maritime surface surveillance radar, which was developed as an OTH experimental radar for the study of a wave propagation using ducting.

The antenna was a symmetrical parabolic antenna with a diameter of 3 meters with a hyperbolic Cassegrain auxiliary reflector. The parabolic reflector was much larger than necessary, resulting in extremely small side lobes. The transmitter and receiver were mounted directly on the antenna.

The MM/SPQ-5 was installed on the Italian frigate “Alpino” (F 580) from 1973 to 1987. It was able to locate aircraft during their take-off from the aircraft carrier „Kennedy“ at a distance of 350 nautical miles.