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在共用电视系统的调试中经常要用到各种衰减量的衰减器,因此若有现成的计算公式是比较方便的。下面是根据不同情况所得到的计算公式。
In the common TV system debugging often need to use a variety of attenuator attenuator, so if there is a ready-made formula is more convenient. The following is calculated according to different situations.