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bh3xzt:附近没有看到LED灯箱,但是房顶上的广告牌是那种带旋转的广告牌,一次性可以贴3张广告,并滚动展示的那种 (2021-08-17 00:24)
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bg7igi:有篇文讲现在的中波广播发射天线用fm的发射铁塔来当天线,楼主尝试下当这一圈铁栏做天线,简单的用天调试下,听说伽玛匹配效果好,尝试成功可是开创ham界先河! (2021-08-17 08:48)
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bh3xzt:是不是想说让我把整个广告牌当做辐射体啊[表情] (2021-08-18 00:14)
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net2000:[图片] (2021-08-22 19:27)