PHPWIND
HELLOCQ
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经验值算出来的不是很准确,还是用驻波表或场强表测试比较好。
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我们这里的bg2ijo最近用各种材料做了八九条j型天线了,可称得上是做j型的专家了,都是用扫频仪和驻波表测试的,145兆的馈电点大概都在距离下端部7到8厘米的位置!如果用粗管材做带宽明显宽于细材料的!
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