PHPWIND
HELLOCQ
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不知0.6mhz频差是必须的吗,我看许多城市两米中继有3.8mhz的频差,无委会不会批?
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请问各位:1.用什么仪器来测试双天线的压制情况?2.用了双天线后,和用3.8的双工器比较,好像中继下行信号的背景噪声大多了,是什么原因啊
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