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QDX xmit one flash
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I submitted a previous topic regarding the audio migration settings. That may not be the problem. I finished my QDX build and am now trying to get it to operate. It comes on just fine and I updated the firmware to 1.10. Cat control is fine, as well. The problem I am having seems to be with the audio. My QDX is not hearing anything nor does it transmit. When I place the QDX, I get just a single flash of the LED. I l found in the operations manual this means my QDX is not receiving any audio. I did check the WSJT-X settings and QDX is set as my input and output. It also appears the audio configuration on my computer (win11) shows full levels for the QDX input and output. I've changed USB cables, but that didn't fix anything. So, what is my next troubleshooting step?
Thanks, Wayne KB4DSF |
开云体育Do you have the power slider in WSJT-X set to maximum? It needs to be at max for the QDX to work.
Roger 8P6RX
On 24/08/2023 06:33, Wayne Greene
wrote:
I submitted a previous topic regarding the audio migration settings. That may not be the problem. I finished my QDX build and am now trying to get it to operate. It comes on just fine and I updated the firmware to 1.10. Cat control is fine, as well. The problem I am having seems to be with the audio. My QDX is not hearing anything nor does it transmit. When I place the QDX, I get just a single flash of the LED. I l found in the operations manual this means my QDX is not receiving any audio. I did check the WSJT-X settings and QDX is set as my input and output. It also appears the audio configuration on my computer (win11) shows full levels for the QDX input and output. I've changed USB cables, but that didn't fix anything. So, what is my next troubleshooting step? |
开云体育From page 10 of the manual: LED flashes 2 times in quick succession, repeating every 1
second: the PC host software
Roger On 24/08/2023 06:46, Wayne Greene
wrote:
OK...now I am getting two flashes on the LED. I am still not getting any audio in or out, however. |
开云体育No. But what do you have the audio devices set as, in WSJT-X? Should be something like QDX-input, QDX-output. (Use F2 to go to settings, then the Audio tab).
Roger On 24/08/2023 06:58, Wayne Greene
wrote:
But would that explain why the QDX is not hearing anything? I do have the output and input devices set in my audio settings to 100% |
开云体育Looks ok to me.
Sorry, I can't help much more. Is the waterfall display showing anything?
Maybe time to start checking the receive signal path back from the antenna socket.
Roger On 24/08/2023 07:11, Wayne Greene
wrote:
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Thanks, Roger. The waterfall isn't showing anything. I'm really thinking this a sound card issue, but I've looked at everything I can think of related to audio devices in my computer. Could it be something with the USB jack? Wayne On Thu, Aug 24, 2023, 07:13 Roger Hill <rhill@...> wrote:
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开云体育Can you access the QDX using the terminal interface? i.e using
Putty?
If you can, and you have a dummy load, you can run the RF sweeps and test CAT and transmit.
That should tell you if the USB link is good. That said, a lot of people have had USB cable issues...so it is well worth trying different cables. Roger On 24/08/2023 07:21, Wayne Greene
wrote:
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So if you attach a dummy load and do the transmit test, what happens?
Roger
Get
On 24 Aug 2023, at 07:41, Wayne Greene <wayne.greene489@...> wrote: Yep. Here is my RF Filter Sweep: |
开云体育By 'a single slow flash', I am assuming you mean 'pulsing', while you hold down 't'. Good.
Does your dummy load have a power meter attached, or can you measure the voltage across the dummy load when transmitting? That will give an idea of whether your signal is getting all the way out to the antenna socket.
Roger On 24/08/2023 07:52, Wayne Greene
wrote:
I get a momentary single fast flash on the LED and PTT Signal in putty shows on, then off when I run a PTT test. I get a single slow flash on the LED when I run a PTT and Transmit test and the PTT Signal and Transmitter shows on, then off. |
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Ok. So no output at the dummy load.
I would now start working backwards from the BNC socket centre pin,through the LPFs to the PA, checking for continuity. QDX turned off, ok!
I suspect you have a poorly soldered toroid.
Roger
Get
On 24 Aug 2023, at 08:13, Wayne Greene <wayne.greene489@...> wrote: Correct, pulsing. I didn't hold it the keys down until you suggested that, lol. OK, my dummy load does have a power meter attached. It's analog and the needles do not move at all. I'm not sure about measuring the voltage across the dummy load, though. That I've never done. |
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Maybe. I did check them all and they all ohmed out correctly. So, during my troubleshooting, I came across this error again:
I'm still thinking this is either a sound card problem (I know there isn't a separate sound chip; the sound card is embedded in the microcontroller) or some stupid and rediculous sound setting in my computer that I just can't find. Wayne |
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Ok. Sorry Wayne. I am out of ideas, Windows is not my scene.
Maybe someone else can help.
Roger
Get
On 24 Aug 2023, at 09:23, Wayne Greene <wayne.greene489@...> wrote: Maybe. I did check them all and they all ohmed out correctly. So, during my troubleshooting, I came across this error again: |
开云体育Wayne,I'm not a Windows guy, but in Linux sometimes the QDX soundcard can get assigned to the wrong device, such as HDMI or something of the sort and it has to be corrected to get it to work with the QDX. 73, Cliff, AE5ZA
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