OVERVIEW:  The Type 381 aka RICE SCREEN radar is an shipborne, long-range, 3-D air search radar operating in the NATO "G" (IEEE C ) band.


DETAILS: The Type 381  air search radar 1 was one of the first Chinese naval 3D search radar employing FRESCAN (Frequency Scanning).  It is laimed able to track 10 targets simultaneously. It uses TWT+CFA coherent chain transmitter. Reception is coherent with MTI improvement factor of 30 dBm.


Specifications:

	Frequency:	4-6 GHz (G-band (NATO)) (possibly in the upper range of this band)
	PRF:		370-730
	Pulse width:	20 (compressed to 1 µ sec 
	Power: 		150 kW (peak);  2.2 kW (average)
	Accuracy:		100 m (range) 0.8° (azimuth)
	Range:		97 nm (max);
						

NOTES:  IOC: mid-1980's

SOURCES: Friedman, The Naval Institute Guide to World Naval Weapons Systems 1997-98, pg. 278 ; "Type 381 Radar." Military Wiki. Accessed December 27, 2023. https://military-history.fandom.com/wiki/Type_381_Radar.
