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bg9gsy:为啥都不用馈线避雷器呢? (2021-10-15 14:12)
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bd4lb:以前,在六楼顶上,用7米高的支撑杆,架设10米波段四分之一波长的GP天线。大风天气,用手拿电缆BNC插头的时候,被高压静电电击了。雷雨天气,BNC插头上,也有火花放电现象。朋友的GP天线, .. (2021-10-07 18:23)
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