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本帖最后由 潮起潮落 于 2013-7-31 08:12 编辑 8 D! ?9 g( O7 r7 D! ?+ |! H7 D
njyd 发表于 2013-7-30 22:48 , ?3 a' V, O2 }; F1 O9 ~; F* _
你这照片多数是中波天线,天线长度百米级。象江苏广播电台就是这样的天线。
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# |* s: p( l4 o% H. @4 X我发的都是各国对潜长波台的照片,天线照片确实大多是天线阵列的局部,因为人家没法拍出全貌。说起来沪宁线这段铁路并不长,你见过它的全貌照片么?一个道理。我的照片皆来外军官网,或根据其提示的线索找的照片。我也查对了土共海军出的外军相关资料,对资料的准确性我心里有谱,就别跟我争了。
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+ _: M, n5 h* ~2 v1 ?* Q6 c给你提供一个线索:你若真有兴趣,不妨去美国海军官网核实一下。不用太复杂的专业词汇,你用“VLF”在站内搜索就行。
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随便上个例子:上面照片是美国海军官网2012年8月15日发布的一幅照片,原说明见下:7 g% D5 r8 x5 g9 @3 @: ]
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CWO4 Robert Studyvin is pictured here in front of a scale model of the tranmitter and antenna field located at Jim Creek Naval Radio Station. Jim Creek is a United States Navy facility in Oso, Washington where CWO4 Studyvin is the OIC. The primary mission of this radio site is to provide VLF radio transmitting capabilities for the Pacific submarine fleet. Established in the 1950s, the 1.2 million watt transmitting system developed for the site remains 'state -of-the-art' in producing low frequency emissions world-wide. In fact it is one of the most powerful transmitters in the world. Located near Arlington, Washington, in the foothills of the Cascades, north of Seattle, the site has 5,000 largely forested acres.
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即使这个发射台的缩比模型,在照片上也无法展现全貌。
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