Country of origin | United States |
---|---|
Introduced | 1942 |
No. built | 955 |
Type | Surface-search radar |
Frequency | 3 GHz |
PRF | 775, 800, or 825 |
Beamwidth |
|
Pulsewidth | 1.3–2 μs |
RPM | 4, 8, or 12 |
Range | 15 nmi (28 km; 17 mi) |
Precision | 200 yd (180 m) |
Power | 50 kW |
The SG radar was an American naval surface-search radar developed during the Second World War. The prototype was tested at sea aboard the destroyer USS Semmes in May 1941.[1] It was the first microwave surface-search radar to be equipped with a plan position indicator(PPI). The first operational set was installed aboard the heavy cruiser USS Augusta in April 1942.[2]