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BH4rrg:看不清带宽 (2015-09-12 23:38)
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jackey:你的扫频宽度设错了,达到56K!!。试一下3K!
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BA6BF:晚上重新摸索了一下频谱仪的设置,扫宽设置为1KHz,测量出-3dB的带宽是260Hz左右,插损为1dB,呈现单峰曲线,用于CW应该没问题。[图片] (2015-09-14 00:12)
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陆纪广:看看我自制的10M
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陆纪广:看看我自制的10M (2015-09-27 15:24)