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QMX and WinLink/WARA HF settings

 

Hello! I am trying to find right settings to start work with WinLink and VARA HF threw QMX. CAT connection is OK. The only problem here is that when I choose some Gateway channel QMX always switches to USB mode from DiGi. But it is not a big deal to return back to DiGi manually. The main problem is that when I start connection with the chosen channel QMX shows two dots as TX status. Which means that audio level from PC is too low. But I've put it to maximum. And everything works fine with WSJT-X and JS8Call. So problem is definitely with some WinLink VARA HF settings? Can smb help? Hans, did you try to use WinLink with QMX?
 

Hello Petrov

I'm successfully?using QMX+ with the WinLink Pat client on a Pi400 computer with ardopcf as the modem. I have not tried VARA. I don't have any Windows machines here and though I hear VARA works perfectly well with WINE on Linux, I am so far, perfectly happy with ardopcf.

Note?that QMX "DiGi" mode is suitable for FSK modes only. For non-FSK modes, use SSB (USB).?

73 Hans G0UPL



On Sat, Apr 12, 2025 at 9:31?PM Petrov Sergey via <irtish71=[email protected]> wrote:
Hello! I am trying to find right settings to start work with WinLink and VARA HF threw QMX. CAT connection is OK. The only problem here is that when I choose some Gateway channel QMX always switches to USB mode from DiGi. But it is not a big deal to return back to DiGi manually. The main problem is that when I start connection with the chosen channel QMX shows two dots as TX status. Which means that audio level from PC is too low. But I've put it to maximum. And everything works fine with WSJT-X and JS8Call. So problem is definitely with some WinLink VARA HF settings? Can smb help? Hans, did you try to use WinLink with QMX?
 

Thank you Hans! Yes, I tried to use DiGi by mistake )) Now I tried USB and there is strange thing: it works, but TX power is very low. Peak to Peak voltage is just 3 Volts. When I work in other digital modes (FT8) its is ok - 40 Volts peak to peak (40 m band). What it can be??
 

It is very strange. As I said when I used Vara sound card settings where QMX was mentioned as output/input device TX power was very low. Than I decided to choose mic and dynamics as input and output device in VARA soundcard settings. And TX power became normal! Around 40 Volts peak to peak. Ans VOX was OFF! So I transmitted some signal, but I am not sure what signal it was? and was it not distorted or not. At least I didn't manage to make a connection.?
I tried to switch VOX on and found out that it doesn't work. Even during normal SSB communication it doesn't activate TX. So now I am really confused....?
One more question. There is no Kenwood 440 in VARA list of transivers. So I've chosen Kenwood 550. Is it OK?
 

Petrov, I use the following VARA HF settings in Winlink:
For when the picture gets deleted:
Radio Model - Kenwood Amateur, USB mode (not USB Digital), Use Internal Soundcard
Select appropriate COM port; baud rate doesn't matter, do not enable RTS/DTR
PTT Port: Kenwood TS-590S? (I think others would work too)
?
And in the VARA soundcard settings:
- Choose the Device Input and Device Output entries with QMX in their name
- I choose L+R output (though I don't think this matters)
Tune Drive level: set to maximum (0dB).
?
Also, in Windows sound devices, set the QMX 'playback' and 'recording' device levels to 100%.
You can get to this setting easily by typing mmsys.cpl in the windows search box (this brings up the flow-level windows sound control panel).
?
I also found that in Windows, the audio output level created by Winlink's VARA-HF modem does not seem to be full scale, so the output power is somewhat lower.?? It would be nice if Hans could add a level adjustment to the USB sound interface, so we could compensate.
?
Stan KC7XE.

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