• Under normal circumstances, in order to filter at any frequency band have good frequency resolution, can be used with a broadband constant-pass filter, such as radio frequency-selective.

    一般情况下,为使滤波器任意频段都有良好频率分辨力采用宽带滤波器,收音机的选

    bbs.shangdu.com

  • Under normal circumstances, in order to filter at any frequency band have good frequency resolution, can be used with a broadband constant-pass filter, such as radio frequency-selective.

    一般情况下,为使滤波器任意频段都有良好频率分辨力采用宽带滤波器,收音机的选

    bbs.shangdu.com

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