[sdiy] BODE Frequency Shifter

Dave dlmanley at sonic.net
Wed Oct 31 15:02:20 CET 2018



On October 30, 2018 3:45:25 AM PDT, atsushi maeda <shine32 at kr.tcp-ip.or.jp> wrote:

>The current problem occurred when adjusting DOME Filter.
>It may be adjusted so as to have a phase difference of 90 degrees at 40
>
>Hz, 170 Hz, 725 Hz, 3080 Hz, 13090 Hz, but if I adjusted it to 90 
>degrees phase difference at 13090 Hz, the phase difference will be 90 
>degrees at other frequencies It will not be.
>No matter how many times you try to adjust it, it will not change.
>Is my understanding wrong?

Please post your measurements.  How large are the errors?

-Dave



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