[Elecraft] Adjusting Audio Level for Digital Modes

[Bob McGraw K4TAX]

As an operational note for WSJT-X.  Version 1.8.0 -rc2

To adjust the audio level via the software slider marked *Pwr* on the 
right, I find it more precise to place the cursor just above or just 
below the slider bar, depending which way you wish the audio level to 
go, and click the left mouse button one time. This will move the slider 
to the next step.  I find this to be easier than placing the cursor on 
the slider and trying to move it up or down.

Also you will find on the WSJT-X  Audio tab via the F2 menu, there are 
two boxes, if checked the software will remember the settings for each 
band for both /TRANSMIT /audio level and /TUNE/ audio level functions.   
You must set your Windows SPEAKER level to the same value each time for 
this to be effective.   I use 25% {or -21 dB} in my configuration.   The 
WSJT-X *Pwr *slider operates about mid scale for correct level to the 
K3S.   Due to differences in computers, sound cards and etc.  you will 
need to experiment a bit in order to get the exact numbers nailed down 
as required by your station.  Do anticipate that Windows _will change_ 
the SPEAKER value if and when you run other applications requiring the 
sound card function.

If you are not getting good decodes, I suggest you check the Recording 
Devices level.  Right click the Speaker ICON and select Recording 
Devices.   Specifically the USB CODEC Properties and Levels to see that 
the level control  is about 50% to 55%  {-1 dB to + 1 dB}.  Via the 
CONFIG menu I did adjust the K3S Line Out from the default value of "nor 
010" to a value of "nor 005".  This will reduce the likely hood of sound 
card overdrive or saturation of the transformers in the K3S.


73
Bob, K4TAX



On 9/8/2017 5:36 PM, MaverickNH wrote:
> At present, I have my PC's USB Audio Codec Playback Level set at 35%, and am
> adjusting ALC with the MIC knob. With the WSTJ-X Tune ON, I'm slowly
> increasing MIC until the 3rd bar shows. Further increase jumps directly to
> the 5th bar, with no 4th bar appearing or flashing 5th bar.
> I could swear I used to be able to get that flickering 5th bar. Must be I
> have something else set incorrectly?
>
> But either way, I must have nudged the MIC button as now things seem OK. Any
> way to lock that? As such, when pressing the K3S TUNE button ON, the POWER
> knob on the K3S adjusts power smoothly up on the K3S (as seen on the P3TXMON
> and K3S display) with KPA500 off. With KPA500 ON, increasing K3S power knob
> increases KPA500 display power, with the P3TXMON going up too.
>
> I'll have to add "check ALC/MIC setting to my WSJT-X Cheat Sheet. Thanks for
> the help guys.
>
> BRET/N4SRN
>
>
>
> --
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