[Elecraft] RX audio distortion with auto notch on

[Fred Jensen]

Chopping out a part of the spectrum of a voice signal is fairly serious 
"surgery," resulting in noticeable distortion products.  The reverse [a 
peaking filter like the Q-multipliers of yore] is also true.  OTOH, the 
notch filter, while adding a lot of distortion, may render a signal 
covered by a strong carrier or CW signal readable.

73,

Fred ["Skip"] K6DGW
Sparks NV DM09dn
Washoe County

Rocco Conte wrote on 11/13/2023 7:29 AM:
> Hello Everyone,
>
>   I have a K3 that a friend of mine let me borrow to try out. I noticed that
> when I turn on the auto notch, the received audio seems to get somewhat
> distorted. Voices sound sort of "muddy" and not crystal clear like they do
> without the auto notch filter. This is happening on all bands and at all
> different signal levels as far as I can tell.  Am I missing something here?
> I have looked at the manual for settings but I am not sure what I should be
> looking for.
>
> Any advice would be greatly appreciated.
>
> Thanks,
>
> Rocco - WU2M
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