Self-Propelled S band JY-11B 3D radar of the People's Liberation Army Air Force (PLAAF).
Chinese JY-11B is a self-propelled version of the YJ-11 electronically scanned radar which can detect RCS 2m2 from a distance of over 260 kilometers. 

JY-11B 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,

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