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BA7KW:今天试了一下,用7/8馈管做了个直径1.3米的,顶部外皮开口,底部中心铜管开口连接输出,套几个EMI磁环后连到50欧电缆,外皮接地和接50欧电缆的外皮,中心铜管没有用电容匹配。试过接和不接L .. (2015-12-29 21:53)
还是老实点好!![表情]
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蒋斌:2.25cm 铝管做了一个 直径大概50厘米环,频率大概5.7-10.2M左右,确实可以对付干扰;环电容还是有点大,覆盖不到14M,环内用细导线能减少电容? (2016-01-09 14:40)
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