Set the TX value in the application to something other than 1500 Hz.
Just change it in the TX window located to the left of the "Hold TX
Freq" box. I use 1550 Hz to start.
In working stations, that number will change depending on where in the
audio spectrum the station is transmitting. Once I set the levels from
the computer, the WSJT PWR value and the radio Line Gain value, I'm good
to go for all contacts on any part of the audio spectrum. Even if the
station comes up on 1500 Hz, the ALC is correct while the display may be
pulsing, indicating otherwise. Just ignore it.
73
Bob, K4TAX
On 9/16/2019 10:04 AM, Kenneth Moorman wrote:
Bob,
How do you change the TUNE frequency in WSTJ? I am seeing what you mention
below with my K3 and would like to use a different frequency other than the
default of 1500 Hz. Thanks.
Ken, NU4I
-----Original Message-----
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bob McGraw K4TAX
Sent: Monday, September 16, 2019 8:09 AM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3 original - ALC erratic
With my K3S I do find there is a relationship or interaction with the scan rate
of the ALC display and the frequency of the tone supplied by FT-8.
Specifically 1500 Hz will appear to have fluctuating ALC display while the
actual level is not changing. By setting the tone, TUNE is a good application
to do this, to some value higher or lower than 1500 Hz will eliminate the
display fluctuations. WSJT defaults to 1500 Hz for TUNE mode.
Also if the Line Gain set via the MIC level control is less than 25 or so, the
granularity of the adjustment becomes critical. It is suggested to lower the
PWR slider on the WSJT application and raise the value for the Line Gain to
some value between 30 and 40. This also applies to the value of SPKR level
from the computer. Again typically
30 to 40 are good values giving smooth level resolution and changes.
73
Bob, K4TAX
On 9/15/2019 10:28 PM, David Bunte wrote:
Jim -
I have no answer, but mine has always been extremely critical. I can
set it for 4 bars... and it won't budge... but I can't set it for the
5th bar blinking... it goes from 4 solid to 5 solid no matter how much
I play with the various level controls. I don't do a lot of digital
work, so I am not really too concerned. There may be something I am
missing, but I just leave it at 4 bars and hope for the best.
Dave - K9FN
On Sun, Sep 15, 2019 at 11:25 PM Jim Miller <jimmil...@stl-online.net>
wrote:
K3 original - ALC erratic
Noticeable on digital mode(s?) (FT8). The ALC - set at 4 solid and
5th flashing - is far more critical than I remember. Seems like I
could easily set it exactly where I wanted it and it would stay there. Now not
so.
Just wondering what can affect the adjustment to where it will drop
to 2 bars sometimes and the small change of the "mic" gain will make
it higher than wanted. Not sure it is a continuous condition. Just
far more critical than usual.
Thanks, Jim KG0KP
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