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MM/BPS-704

Description of the radar set, tactical-technical characteristics

Figure 1: MM/BPS-704

Figure 1: MM/BPS-704

Specifications
frequency: 9 375 MHz
(X-band)
pulse repetition time (PRT):
pulse repetition frequency (PRF): 5 200 … 650 Hz
pulsewidth (τ): 0.05 … 1.5 µs
receiving time:
dead time:
peak power: 7 or 20 kW
average power:
instrumented range: 40 NM (≙ 74 km)
range resolution: 9 m
accuracy:
beamwidth: β= 2.2° ; ε= 11°
hits per scan:
antenna rotation:
MTBCF:
MTTR:

MM/BPS-704

MM/BPS-704 (MM stands for Marina Militare, a nomenclature for the Italian Navy, similar to the US-Army/Navy’s nomenclature AN/…), manufacturer’s designation: 3RM-20, is operating in the X-band naval search and navigation radar for use aboard submarines. The radar uses a specially designed high pressure resistant antenna (up to 60 kg/cm²) with a span of 1 m, mounted on a telescopic mast.