CASIC SJ-231 / KS-1A/HQ-12 Phased Array Radar

CASIC SJ-231 / KS-1A/HQ-12 Phased Array Radar

The SJ-231 is an alternate radar for the KS-1A/HQ-12 SAM system, based on the HT-233 PESA antenna and cabin design. Cited performance is virtually identical to the H-200. Unlike the towed H-200, the SJ-231 is self propelled, but unlike the HT-233 it is split across a pair of 6 x 6 or 8 x 8 vehicles.


Specifications (CASIC):
Operating band: C (G/X) band
Radar cross section: 2m2
Maximum detection range: ≥120km
Minimum detection range: 3km
Operational performance: Altitude: 0.05~27km
Slant range: 5~70km (120 km)
Maximum operational airspace: Azimuth: 0~360º (mechanical rotation range)
-30º~+30º (electrical scanning range)
Elevation: -1º~+70º (electrical scanning range)

Target capability:
Guide 4~8 missiles to intercept 4 targets at the same time

"The SJ-231 guidance station is an important constituent part and the operational command and control center of the KS-1A weapon system. It is used to detect and track the aerial target and control and guide the missile. The SJ-231 guidance station is an advanced guidance radar system and is developed according to the modern war characteristics and the modern air-defense combat requirements. During the development of the guidance station, many advanced techniques in the radar technique development since 1990s are applied to improve the technical performance of the SJ-231 guidance station to a new level."