OVERVIEW: The JY-11 is a mobile low-to-medium altitude 3-D surveillance radar operating in the E/F-band. 

DETAILS: The JY-11 is a modern, highly mobile radar with an integrated D-band IFF sub-system.  It is intended to operate as a surveillance gap-filling system, and capable of military air traffic control (ATC). It has frequency-scanning and target indication capabilities. The JY-11 mechanically scans in azimuth and frequency scans in elevation where it has five groups of beams: one long range and four medium range groups. The five groups forming a total of 14 electronically scanned beams providing 30º of vertical cover. Facilities and capabilities include a narrow-beam, low sidelobe antenna with dual, slow-wave structure enabling the radar to operate over two sub-frequency bands separated by 100 MHz, which overcomes the disadvantage of weak anti-active jamming capability in a single band. 

Specifications:

Frequency: 		 2-4 GHz (E/F Band (NATO), S Band (IEEE)))  
Power output: 		 unknown kW(average); unknown MW (peak) 
PRF:			 unknown	
Range Resolution:	 200 m (range), 2 degrees azimuth 					
On/Off time:		 unknown
Deploy/Stow Time	 unknown min
 
Detection Range:

tgt alt. 100m:		 km
tgt alt. 18000m:	 km
Max Range:		180 km


NOTES: For mobility it can be transported on a flat-back 4x4 truck.
 

SOURCES: Air Power Australia. "PLA Air Defence Radars." Accessed December 1, 2013. http://www.ausairpower.net/APA-PLA-IADS-Radars.html#mozTocId737524 ; "World Defense Review: JY-11B High-mobility Low-altitude 3D Air Surveillance Radar CETC International - China." World Defense Review. Accessed March 28, 2015. http://worlddefensereview.blogspot.com/2012/07/jy-11b-high-mobility-low-altitude-3d.html.