In these cases, filters can be added to the switch to modify the signal frequency bandwidth, or spurious signals at unwanted fre quencies can be eliminated from the signal to the DUT.

在这些情况下，可向开关加入滤波器来改变信号的频率带宽，或者从发射到DUT的信号中消除有害频率的杂散信号。

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Filter is a useful signal can pass while the frequency of the unwanted signal suppression (or attenuation) of the electronic devices.

引言滤波器是一种能使有用信号顺利通过而同时对无用频率信号进行抑制(或衰减)的电子装置。

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Suppression has often been shown to increase the frequency of the unwanted thoughts you were trying to rid yourself of, once the period of active suppression is over.

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