[Elecraft] K3 audio artifacts

[Hank Garretson]

I agree with Vic. QSK is sometimes painful.

CW Exuberantly,

Hank, W6SX


On Tue, Nov 18, 2014 at 4:27 AM, Vic Rosenthal 4X6GP/K2VCO <
k2vco.vic at gmail.com> wrote:

> I know I might be beating a dead horse, but my recent experience in big,
> noisy pileups has made this problem stand out.
>
> The t/r transitions in QSK and semi-QSK CW when there are nearby strong
> signals make a horrible racket -- enough to make me turn down the volume
> when sending, which negates the utility of QSK, of course.
>
> Although the QSK is smooth and quiet on a quiet band, this is not the case
> when there are strong signals around. Here in 4X the EU signals can be
> super-strong, and in recent FT4TA pileups, the banging and crashing around
> my sidetone made operating sheer torture.
>
> Yes, I am using QRQ mode (I listen to the DX on the subrx and the pileup
> on the main so as to make this possible) and New QSK. It doesn't matter.
>
> The problem is as bad or worse in 'simplex' operation when numerous
> stations are calling a DX station on the same frequency.
>
> I understand that this is caused by the limitations of the synthesizers.
> But I have discussed with Wayne and Lyle the possibility of changing the RX
> muting function, which would slow down the QSK but at least make it quiet.
> Fast QSK is worthless if I have to turn down the audio to protect my
> eardrums!
>
> This would do a huge amount to increase the operating pleasure of serious
> CW operators. The feature could be optional so those who like to ragchew at
> high speed in QRM-free spots could turn it off.
> --
> 73,
> Vic, 4X6GP/K2VCO
> Rehovot, Israel
> http://www.qsl.net/k2vco/
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