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JY-11 “Hunter-1”

Description of the radar set, tactical-technical characteristics

Figure 1:

Figure 1: JY-11 „Hunter-1“

frequency: 2.7 … 3.4 GHz
pulse repetition time (PRT):
pulse repetition frequency (PRF):
pulsewidth (τ): 20 µs
receiving time:
dead time:
peak power: 13,5 kW
average power:
instrumented range: 110 NM (≙ 220 km)
range resolution: 200 m100 m
accuracy: ±100 m; ±0.5°±50 m; ±0.3°
beamwidth: 2.5°1.8°
hits per scan:
antenna rotation:
MTBCF: > 800 h
MTTR: < 0.5 h

JY-11 “Hunter-1”

JY-11 is an equipped with state-of-the-art semiconductor technology 3-D air surveillance radar and is mainly used as to provide medium to low altitude target-indication for AAA battery or SAM unit. It is often used as a gap-filler for a regional air defence network. The radar uses a phased array that scans electronically in elevation while rotating in azimuth. The electronic beam deflection is performed by a frequency scanning array. The JY-11 radar uses 14 different beams to cover an elevation range of 30º. Two of the beams are used for wide area detection, and four layers of each 3 beams serve to cover medium ranges.

The radar provides high sidelobe attenuation, high immunity to interference and a constant false alarm rate.

The mobile system is composed of an antenna/transmitter unit, radar electronic and operator shelter, and a supply shelter containing a diesel generator set which can be transported with a total of 3 trucks. It is transportable by land, sea or air (C-130, CH-53). Deployment and withdrawal are largely automated within 20 minutes.


JY-11B is a self-propelled version with enhanced accuracy and maximum range. This radar can raise its antenna which is mounted on a a hydraulically controlled tower to improve the radar coverage against targets flying at very low altitude.

Picture gallery of JY-11 Radar

Figure 2: Selfpropelled JY-11B