Welcome to the club. I don't know what it is, but it is.
See my post "Soundcard levels" from July 16.
Maybe with your complaint there will be a response.
BTW, TX Test doesn't guarantee zero output. I have another thread about that.
Crickets.
Wes N7WS
On 8/3/2017 1:25 PM, Dave Cole wrote:
Hi,
I have an issue in regards to obtaining 4 bars, and getting the 5th bar of
ALC to fluctuate while transmitting JT65.
I have plenty of audio, and can drive the ALC to 6 or more bars if I turn
things up. However, as I get to 4 bars with the 5th flashing a bit, the ALC
starts to fluctuate between nothing and 4 or 5 bars...
That is to say, the ALC just goes to zero, no visible ALC, and then teh ALC
returns to 4 or 5 bars. This happens across a one or two second time span.
The ALC is at zero more than it is above zero most of the time. If I run it to
five bars, with the fifth fluctuating, all is well, there seems to be some
sort of threshold at the 5th bar of ALC...
I have tried a number of things to try and triage this... For instance:
1. Running in "Transmit Test" mode to eliminate RF feedback.
2. Upping the audio level feeding the K3.
3. Reducing the audio level feeding the K3.
4. Upping the line in on the K3 setup.
5. Reducing the Line in on the K3 setup.
6. Adjustment of the WSJT-X output level control, under conditions 2 through
5 above.
In all cases the above described behavior of the ALC dropping to zero does not
change in any way if I am at 5 or less bars. That is to say, if I take the
ALC level to 4 bars, it starts dropping to zero more than not...
Does anyone have any suggestions as to what this might be?
A a bit of history-- the computer and sound card were used on an Icom 756
ProIII, and there was never an issue like this... The ALC was adjustable from
zero to too much on the Icom, with no dropouts...
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