OVERVIEW: The JY-9 WALL EYE is a mobile 3-D low altitude surveillance radar system operating in the E/F-band. 

DETAILS: The JY-9 WALL EYE is intended for use in air defense, gap filling, airport surveillance and coastal defense. It is capable of tracking 72 contacts.  The JY-9 has high anti-jamming and anti-clutter capability due to the use of advanced techniques, including pulse to pulse frequency agility, dual channel, JATS, wide operating band, low sidelobes, automatic spectrum processing, automatic clutter map and automatic residue map.

Specifications:

Frequency: 		 2-4 GHz (E/F Band (NATO), S Band (IEEE))
Power output: 		 kW(average);  200 kW (peak) 
PRF:			  790 pps	
Detection Accuracy:	 80 m (range),  0.3 degrees azimuth 					
On/Off time:		 unknown
Deploy/Stow Time	 90 minutes/ 90 minutes
 
Detection Range  
80% Pd, 2 m2 RCS target:  150 km

  
NOTES:  IOC 1989 (approx).  The JY-9 is air, rail, and sea transportable.
 

SOURCES: Bussert, James C., and Bruce A. Elleman. People's Liberation Army Navy Combat Systems Technology, 1949-2010. Annapolis, Md: Naval Institute Press, 2011, pg. ; "JY-9 Radar." Wikipedia, the Free Encyclopedia. Accessed March 28, 2015. http://en.wikipedia.org/wiki/JY-9_Radar.
