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[讨论] 现在有个GPS的模块,LNA的增益在17dB!一级放大!那天线选择有源天线还是无源天线! |
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发表于 2011-5-26 17:14:35
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发表于 2011-7-26 12:47:44
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发表于 2011-9-27 15:13:43
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