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The AN/SPQ-9 radome on USS Nicholson (DD-982)
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| Country of origin | United States |
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| Frequency | I band (8-10 GHz) |
| Range | 150 yds (137 m) to 20 nm (37 km) |
| Power | 1.2 kW |
AN/SPQ-9, (sometimes spoken as spook nine), is a United States Navy surface detect and track radar used with the Mk-86 gun fire-control system. Primarily a surface search two-dimensional radar (range and bearing), it also can detect and track low altitude air targets.
Initially tested on the USS Norton Sound (AVM-1), it was also deployed on Spruance-class destroyers, Kidd-class destroyers, Ticonderoga-class cruisers, Tarawa-class amphibious assault ships, Iowa-class battleships (1980s refit), California-class cruisers and Virginia-class cruisers.
External links
- NAVAIR warfighters encyclopedia, AN/SPQ-9A
- Fire Controlman Volume 02-Fire Control Radar Fundamentals, via tpub
- GlobalSecurity.org AN/SPQ-9 Radar
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