WSR-57

WSR-57
WSR-57 radar antenna
Country of originUnited States
DesignerDewey Soltow
Introduced1957 (1957)
TypeWeather radar
Frequency2,890 MHz (0.104 m) - S band
PRF164 Hz (long range) or 545 Hz (short range)
Beamwidth2°
Pulsewidth0.5 or 4 μs
Range494 to 171 nmi (915 to 317 km; 568 to 197 mi)
Diameter3.66 m (12.0 ft)
Precision0.15 km (0.093 mi) or 1.2 km (0.75 mi) in range
Power410 KW
Other namesAN/FPS-41

WSR-57 radars were the primary weather surveillance radar used by the United States for over 35 years. The National Weather Service operated a network of this model radar across the country, watching for severe weather.

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