搜索 - 科创

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电缆已经运到实验室了，马上做接头。。关于hamdad的实验方法，为严谨考虑，应该是测量灯泡上的电压降，但是触发记录就很麻烦，所以大家分析一下实验的严谨性，看看用hamdad的办法可行不。

引用第6楼拔刀斋于2012-02-27 09:24发表的回 4楼(hambaby) 的帖子 :大苍蝇……早期的晶体管DC-DC岂不是大蚊子。因为这是直接用市电频率激振的，一般是6.3V /50Hz...

业余无线电用电离层F层传播预测软件HAMCAP 1.90版，使用数学模型为VOACAP模型，即美国之音覆盖分析项目模型，由美国海军研究实验室和美国商务部电信科学研究所联合研发。由于软件运行的依赖关系，...

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