Does it go away if you switch in some RF attenuation?
David
G3UNA
----- Original Message -----
From: "Vic Rosenthal 4X6GP/K2VCO" <k2vco....@gmail.com>
To: "Elecraft Reflector" <elecraft@mailman.qth.net>
Sent: Tuesday, November 18, 2014 12:27 PM
Subject: [Elecraft] K3 audio artifacts
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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