Description of the radar set, tactical-technical characteristics
Figure 1: P-80
|frequency:||2 060 … 2 690 MHz
|pulse repetition time (PRT):|
|pulse repetition frequency (PRF):|
|instrumented range:||360 km|
|range resolution:||1 000 m|
|hits per scan:|
|antenna rotation:||6 or 12 min⁻¹|
P-80 “Altai” (Russian designator: 1RL-118, Cyrillic: РЛС П-80 Алтай, 1РЛ-118) is operating in the 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.