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| 暂停更新 | | 暂停更新 |
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| ==标准型对空雷达==
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| ===装备简介===
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| 在30年代末期出现了最早的对空雷达，这种采用弹簧床式天线的雷达可以提供对空警戒功能。
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| [[文件:Equip L 79.png]]
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| ===实物考证===
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| 原型为日本的21号对空电探。
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| Became Operational: August 1943
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| War Status: used operationally in war
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| Installed: surface ship
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| Purpose: anti-air, surface detectionr
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| Wavelength: 150 cm
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| Peak Output: 5 kw
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| Transmitter: parallel two wire
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| Receiver: UN-954
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| Detector: RE-3
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| Detected: aircraft, group at 100 km, single at 70 km, surface ship (large) 20 km
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| Weight: 840 kg
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| Number Built: unknown, small number
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| Antennae: dipole array with mat type reflector, send and receive separate use
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| One source indicates only 1 set of this type built, but same source indicates it was installed on numerous ships. Type 21 first fitted to BB Ise in April 1942, Taiyo, Chuyo and Unyo in January 1943, others prior to August 1943. At least 30-40 sets built and used operationally.
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| 来源：http://www.combinedfleet.com/radar.htm
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| 实物图
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| https://upload.wikimedia.org/wikipedia/commons/2/24/Bridge_of_IJN_CV_ZUIKAKU_with_21-GO_rader.jpg
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| 舰队collection中的21号对空电探 | | 舰队collection中的21号对空电探 |
