WSR-74

WSR-74
	WSR-74C Radar in Darwin, Northern Territory Australia
Country of origin	United States
Introduced	1974
No. built	68 WSR-74C; 5 WSR-74S
Type	Weather radar
Frequency	2890 MHz (WSR-74S S band); 5400 MHz (WSR-74C C band)
PRF	259 Hz (WSR-74C); 545 and 162 Hz (WSR-74S)
Beamwidth	1.6° (WSR-74C); 2° (WSR-74S)
Pulsewidth	3 μs (WSR-74C); 1 and 4 μs (WSR-74S)
Range	579 km
Diameter	2.6 m (8.5 ft) (WSR-74C); 3.7 m (12 ft) (WSR-74S)
Precision	0.9 km (0.56 mi) in range
Power	250 KW (WSR-74C); 500 KW (WSR-74S)

WSR-74 radars were Weather Surveillance Radars designed in 1974 for the National Weather Service. They were added to the existing network of the WSR-57 model to improve forecasts and severe weather warnings. Some have been sold to other countries like Australia, Greece, and Pakistan.