Herb,
That's a good observation on VID/PID, I will have a look at how to handle it.? I have a nanoVNA-F2 from Sysjoint so can do tests with that and my TinySA-Ultra.
Although I have tried the tinySA-App in the distant past, it only runs on Windows so I don't use it.? Are there any 'desirable' features it has that QtTinySA is missing?
I am not planning to add 'firmware update' because it seems people have difficulty using it in TinySA-App, and the DFU-util method works well and reliably in Linux and presumably in Windows too.
My next target is to make zero-span work correctly, or at least better, in QtTinySA.? I have a feeling that I tried it before and the 'sweeptime' command doesn't work when 'scanraw' is being used but I need to test that again now that I have a better understanding of how things work.
Ian