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Just FYI.? I had a problem with my QDX being overdriven with the audio input.? It displayed similar behavior.? The transmit light would flash once and the power output was erratic.? I can tell when the audio is right because the red light flashes and the power output is rock steady.? YMMV.? Prior to upgrading my operating system, I could leave everything at 100% and it worked fine but not now.? (Xubuntu 20.04 to Xubuntu 23.04).? I assume this problem is not limited to Linux, especially with the bizarre way Windows seems to handle I/O devices.

73

Charles - NK8O

Wayne,

Be sure to power cycle the QDX between settings changes.? It may be that the settings do not take effect until power cycle and or reboot.

73
Evan
AC9TU

Thanks for that catch. I changed that default, but I'm still not getting any audio to the QDX.

Wayne

Wayne,

On the second screen print, I noted that the QDX is the default output device.? It could be that the system is taking over the QDX audio and not allowing the WSJT-X to access it.? Since I do not have the QDX connected to my W11 PC, I can not see other options for the "Is default for audio" tab.? Try one of those.

73
Evan
AC9TU

Here is my setup with the QDX:

Wayne,

Based on the TX working with PuTTY, there is most likely a configuration issue with your computer.? I suspect the volume setting for the QDX audio output (Speaker) is most likely the issue.? I am typing this on my one W11 machine to capture the screens.? As stated in my prior email, I do not have a WSJT-X setup for this PC.

Can you verify in the settings that the QDX device appeared on this screen?


Here is the same screen when I add my Bluetooth headphones:



Note that the Headphones are added.? You can then expand the QDX (Headphone in my example) to see the volume settings for that device:



Make sure that the volume setting is at 100%.

Let us know if that solves the problem.

73
Evan
AC9TU

I just tried JS8 Call. I'm still not getting any power out and seeing two flashes on the LED. I also got this error, which I have also seen in WSJT-X:

Hey, Alan. Thanks for the info--you guided me over to it perfectly. It looks like the microphone permissions are set correctly for WSJT-X.

Hey, Evan. So, two answers:

1: The wall wart says 2A. To be honest, I just assumed 2Ah, I think I just learned something. Thank you!

2: OMG...you got me a step closer!! I get about 5 watts displaying on my analog power meter that is part of my dummy load. This is the first time anything caused the needle to move!! Saying that, I'm still not getting any power out from within WSJT-X and I am still getting two flashes on the QDX' LED. I'm thinking I am still fighting an audio problem. I have no way of telling if I am receiving any audio via the QDX. I'm connected to a dummy load. I don't have an antenna here where I work.

Wayne

On 24/08/2023 13:52, Wayne Greene wrote:

Hey, Alan. Maybe? Where do I find that in win11?

Wayne,

W10 here but try entering "microphone" in the search box.
(Settings - Privacy - Microphone.)

73 Alan G4ZFQ

Wayne,

You stated, "I built my QDX for 9VDC and am running it with a 9VDC 2Ah wall wart power supply. "? Can you confirm that it is 2 amps and not 2 amperhours?? There is a difference as amperhours is the length of time that the battery will provide current depending on the amount of current drawn.? There is also a maximum current that the supply can deliver.? The best is to measure the voltage while the QDX is running.

73
Evan
AC9TU

Hi Wayne,

I do not have a Windows 11 machine configured for WSJT-X operation.? They are all Windows 10.

I used my Rev1 QDX today to see if I could find similar issues to what you are reporting.? I did see the same problem.? To resolve it, I first verified that PuTTY could talk to the QDX.? At first, it did not, as the com port changed in the last Windows update.? If the com port is not configured correctly, WSJT-X does not start the waterfall and appears to have audio issues.? To get everything working again, I had to reload the QDX firmware and restart the PC first and then the QDX.? I verified the settings in WSJT-X, and everything worked.

So the steps I recommend are:
1 - Load the latest firmware (1_10) to the QDX
2 - Power off the QDX
3 - Reboot the PC
4 - Turn on the QDX
5 - Use Device Manager to verify the com port number
6 - Use PuTTY to verify transmitter operation
7 - Exit out of PuTTY and close the PuTTY window
8 - Start WSJT-X
9 - Set any values that may have changed (Comm port)
10 - Verify receive and transmit with WSJT-X

It took me a couple of resets to get the above to work.? Something in the last Windows update messed up the comm and audio settings.

NOTE: The QDX is fussy when connecting to Windows.? The PC must be on and connected when powering on or first connecting the QDX.? It has to do with setting the USB parameters.

73
Evan
AC9TU

So, one other thing I checked based on other things I looked at in the forums related to my issue, is my input voltage. I built my QDX for 9VDC and am running it with a 9VDC 2Ah wall wart power supply. I checked the unloaded voltage and it reads 9.2 volts. Might is be possible the voltage is getting too low under load?

Wayne

Hey, Cliff. I'm not sure how to check that in Windows, either; although, everything I an see indicates the QDX soundcard is assigned correctly.

Wayne

Hey, Alan. Maybe? Where do I find that in win11?

Wayne

Roger, thanks for everything. I really do appreciate your trying.

Wayne

On 24/08/2023 13:22, Wayne Greene wrote:

some stupid and rediculous sound setting in my computer

Wayne

Not microphone privacy?

73 Alan G4ZFQ

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Wayne,