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PRV-11 “Side Net”

Description of the radar set, tactical-technical characteristics
Wartung am PRV-11

Figure 1: Maintenance on the antenna of the PRV-11

frequency: ca. 2.7 GHz
pulse repetition time (PRT): 3 and 1,3 ms
pulse repetition frequency (PRF): 330 and 730 Hz
pulsewidth (τ): 3 and 1.5 µs
receiving time:
dead time:
peak power: 1.2 MW
average power: 1.3 kW
instrumented range: up to 216 NM (≙ 400 km)td>
range resolution: 0.8 und 1.5 km
beamwidth (azimuth):
beamwidth (elevation): 1.2°
hits per scan:

PRV-11 “Side Net”

The PRV-11 „Vershina“ (Russian designation: 1RL119; Cyrillic: 1РЛ119 «Вершина»; NATO designator „Side Net“) was a radio altimeter of the former Warsaw Pact countries, developed and produced in the former Soviet Union since 1958.

The radar was housed in three cabins. The transmitting-receiving cabin with the parabolic antenna was mounted on a KZU-16 type rotating mount and was usually placed on a small mounded hill. The viewing equipment cabin on a two-axle trailer was deployed somewhat apart from it. Another cabin on a two-axle trailer housed a power supply unit and workshop accessories. Altitude determination was carried out after target assignment by a panoramic surveillance radar or by an automated guidance and control system.