![]() SG (at the top of the mast) and SK-1 (below and to the left of the SG) radar antennas of USS Astoria | |
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]
Notes
[edit]Bibliography
[edit]- Brown, Louis (1999). A Radar History of World War II: Technical and Military Imperatives. Bristol and Philadelphia: Institute of Physics Publishing. ISBN 0-7503-0659-9.
- Friedman, Norman (1981). Naval Radar. London: Conway Maritime Press. ISBN 0-85177-238-2.
- Watson, Raymond C. Jr. (2009). Radar Origins Worldwide: History of Its Evolution in 13 Nations Through World War II. Trafford. ISBN 978-1-4269-2111-7.
Further reading
[edit]- "US Radar: Operational Characteristics of Radar Classified by Tactical Application". Naval History and Heritage Command. Retrieved 2022-02-18.