[Elecraft] Heil Proset & K3 Audio fixed, sort of.

[Paul Fletcher]

Jack Smith-6 wrote:
> 
> It suggests  that perhaps you were hearing the artifacts > 4 KHz, such 
> as the 12 KHz with modulation sidebands or the one at 3.9 KHz. Maybe you 
> were not hearing the artifacts directly but beats amongst them?
> 

It's difficult to know. It's definitely high in frequency because I couldn't
hear it in my right ear which has some HF loss (sadly don't have a
calibration curve :-) ) Any ideas as to how this could be tracked down?

This needs a better fix though because of the overall attenuation the filter
introduces.

73
Paul.
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