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SD Air Warning Radar


Photograph of SD air warning radar antenna

Naval History and Heritage Command #NH97306

Cropped by author


Specifications:

Wavelength 2.65 m
Pulse Width 8.5 microsecond
Pulse Repetition Frequency     
60 Hz
Power 100 kW
Range 20 nautical miles (37 km) on bomber
Accuracy 1000 yards (900 meters)
Resolution 1500 yards (1400 meters)
Production: 60 built by mid-1942. 
20 -1 built by late 1942
60 -2 built from mid-1942.

SD was a nondirectional submarine early warning radar that gave range but no bearing information.

References

Friedman (1981)


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