MR-320 “Topaz”
Description of the radar set, tactical-technical characteristics

Figure 1: MR-320

Specifications | |
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frequency: | S band |
pulse repetition time (PRT): | |
pulse repetition frequency (PRF): | |
pulsewidth (τ): | |
receiving time: | |
dead time: | |
peak power: | |
average power: | |
instrumented range: | 54 NM (≙ 100 km) |
range resolution: | |
accuracy: | |
beamwidth: | |
hits per scan: | |
antenna rotation: | |
MTBCF: | |
MTTR: |
MR-320 “Topaz”
MR-320 “Topaz” (Cyrillic: МР-320 «Топаз-2», NATO designator: “Strut Pair”) is operating in the S band air surveillance and acquisition radar. It is designed to detect air, surface and coastal targets, as well as to assign target indication to artillery and anti-aircraft missile weapons. The detection range of a surface target is up to 40 km.
The antenna post is mounted at the top of the fore mast. There are practically two antennas MR-302 “Strut Curve”, which were mounted back-to-back. Each of the antennas covers a different elevation angle, so that a rough height determination is possible.
The radar was added to the armament of the Soviet Navy in 1976. The modernization MR-320 “Topaz-2” also allows passive target tracking of active jammers.