[Elecraft] K3 Notch causes distortion on SSB RX

[Joe Subich, W4TV]

what you hear is a fast time constant on the auto notch.  The
faster time constant makes the notch respond faster but it also
allows it to attack "purer" tones in the audio.  The effect is
more noticeable on strong signals with flat AGC curves where
all frequencies in the audio passband are of similar levels.

The effect is a result of the design decisions made by the DSP
programmer - a tradeoff between notch effectiveness and fidelity.

73,

    ... Joe, W4TV


On 2014-07-28 9:11 PM, Sam Morgan wrote:
> hard to describe, it's like the audio is getting chopped up, not sure
> this would explain it, but it's kind of like the sound of someone
> gargling being overlayed over the  signal audio. A combination of that
> and the sound of NR @ 5-1.
>
> if the band is very quiet and the signals strong it's very pronounced,
> if the band is noisy it's not as pronounced
>
> On 7/28/2014 7:52 PM, Dick Dickinson wrote:
>> What type of distortion are you hearing?
>> Dick - KA5KKT
>>
> ==
>> I am noticing a bit of distortion on SSB signals when I enable the AUTO
>>
>> Notch. Is there some setting I can change to eliminate the distorted
>>
>> sound I am hearing now?
>>
>