S 711
Description of the radar set, tactical-technical characteristics
Figure 1: S 711
Figure 1: S 711
| Specifications | |
|---|---|
| frequency: | 3 ± 0.15 GHz
(S-Band) |
| pulse repetition time (PRT): | |
| pulse repetition frequency (PRF): | 1 000 Hz |
| pulsewidth (τ): | 12.5 µs |
| receiving time: | |
| dead time: | |
| peak power: | 160 kW |
| average power: | 2 kW |
| instrumented range: | 64 NM (≙ 118 km) |
| range resolution: | 250 m |
| accuracy: | |
| beamwidth: | 1.5° |
| hits per scan: | |
| antenna rotation: | 15 min⁻¹ |
| MTBCF: | |
| MTTR: | |
S 711
S 711 was a special surveillance radar operating in S-Band developed by Marconi. It was designed as a gap filler and radar at a special distributed site against low-flying aircrafts.
The antenna was a single curved parabolic reflector antenna mounted on a mast in a height of 12 or 19 meters. The antenna performs a cosecant squared pattern by the illumination of the reflector with two hornfeeds. The transmitted electrical field was linear vertical or circular polarized. The receiver’s pulse compression gain was 20-fold, the compressed pulse width was 0.625 µs. The radar used the same operator shelter as the S 706 radar.
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