The next step would be to get some snapshots of what the OS thinks it has connected
Andy,
Is this what you are asking?
The QDX fault condition here is that when the audio does not seem to be configured correctly.
My last test first showed a bad audio trace, then the very high noise output started. Often when monitoring the audio in the fault condition giving bad audio/RF it sounds a rough unstable noise. The high noise output situation is just that, a giant white noise.
This often appears to be triggered by powering up the QDX soon after it has been running correctly. Then quite a few attempts are required to get it working properly. Various linear power supplies tried.
It seems best to leave it for half an hour, then there is a better chance of correct initialisation.
I do not think this is USB connection related?
Two file attachments to save yards of text.
There is also the CAT dropout problem which may well show up something in USB test. Maybe later.
73 Alan G4ZFQ
