[Elecraft] K3: honest question re Audio Peak Filter

[Barry N1EU]

Bill W4ZV wrote:
> 
> I'm confused Barry.  What do you mean "before applying APF" since the K3
> does not have APF.  Did you mean DUAL PB?
> 
I made recordings of K3 rx audio and then processed those recordings with
filtering equivalent to an APF.  I applied a 50hz wide +10dB filter centered
on the cw tone.  So the filtering was applied after the fact but is
completely analogous with an in-line audio filter in real-time.  I edited
the recording to splice together pre and post APF audio to compare.

73,
Barry N1EU

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