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P-80 “Altai”

Description of the radar set, tactical-technical characteristics

Figure 1: P-80

Figure 1: P-80

Specifications
frequency: 2 060 … 2 690 MHz
(S-Band)
pulse repetition time (PRT):
pulse repetition frequency (PRF):
pulsewidth (τ):
receive time:
dead time:
peak power:
average power:
instrumented range: 360 km
range resolution: 1 000 m
accuracy:
beamwidth:
hits per scan:
antenna rotation: 6 or 12 min⁻¹
MTBCF:
MTTR:

P-80 “Altai”

P-80 “Altai” (Russian designator: 1RL-118, Cyrillic: РЛС П-80 Алтай, 1РЛ-118) is operating in S-Band air surveillance radar for detection of air targets, targeting fighters and anti-aircraft missiles.

It sometimes considered 3D radar because one of the antennas was electrically adjustable in the tilt, although only quite slowly (10 s from one stop to the other). Practically this was only usable to search the airspace with a slightly different angle of incidence during each rotation. Therefore this radar station was operated as a pure 2D radar with several PRW-11 height finders in combination.

The radar was developed in the mid 1950s and became operational in 1962. This antenna configuration became the model for many other radars, like K-66 or MR-310, MR-320. The radar was replaced by the ST-68 from 1968 on.