OVERVIEW: The ASR-9 is an advanced Airfield Surveillance Radar.

DETAILS: The Northrop Grumman ASR-9 is an Airfield Surveillance Radar.  It was the first airport surveillance radar to display weather and aircraft simultaneously.

Fequency: 		 2.7-2.9 GHz (E Band (NATO), S Band (IEEE)))  
Power output: 		 unknown kW(average); 1.1W (peak) 
PRF:			 1000 Hz  (average)	
Range Resolution:	 125 m (range), unknown degree azimuth 					
On/Off time:		 unknown seconds
Deploy/Stow Time	 unknown min / unknown min
Maximum Range:		 111 km (instrumented range)


NOTES: The first installation began in 1989 and was completed in the US in 1995.   Poland , India, Tunisia, Panama, Belgium, Taiwan, Morocco, and Argentina also used the ASR-9 radar.

SOURCES: Grundlagen der Radartechnik. "Radar Basics." Accessed December 1, 2013.  
http://www.radartutorial.eu/19.kartei/karte203.en.html ; http://www.cv.nrao.edu/~rfisher/Radar/WW-10147.pdf

