You might be getting RF in the audio. The K2 seems very prone to that. I had similar problems with terrible-souding audio which were from rfi.
Torsten
N4OGW
>
> From: "Karsten Eppert(DK4AS)" <
[hidden email]>
> Date: 2006/02/12 Sun PM 02:10:23 EST
> To:
[hidden email]
> Subject: [Elecraft] Bad report on SSB-modulation
>
> Hi,
>
> I am getting reports from stations, who live in the neighbourhood that
> my SSB sounds like my PA is operating as Class C-Amplifier. I have
> checked the bias - that is ok as described in the manual.
>
> What can I do to check my modulation other than listening to other
> peoples reports? What else can let the modulation sound like from a
> Class C-PA?
>
> 73
> Karsten
> DK4AS
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