Hi again James,
I missed your post last night, but Ian has said pretty much the same as I would have done.
Only one Commercial Aircraft reported at 22,000ft is concerning if there was as you say a lot of traffic around (presumably seen on FR24 or did you actually ‘see’ other aircraft?). Sig(nal strength) of 24 also seems low for a commercial aircraft directly overhead as they normally pump out up to 500 watts, so it does sound like either your new dongle is ‘deaf’ or there is something else going on here.
I’m loathe to suggest buying yet another dongle (especially all the way from China) as that may not be the problem, though I’m struggling to think what else it could be. You could try swapping the SDR to a different USB port. Try swapping them around so the USB port you normally plug the SDR into is left blank.
DON’T swap the WiFi one with the unit powered up though - it won’t like it. It would probably be worth getting in touch with Ash at PilotAware Support (
support@pilotaware.com ). He might be able to send you a ‘used’ old style ‘Realtek’ SDR (from the ‘Rosetta upgrade program’ returns) to try, to prove whether your new ‘Stratux’ dongle is faulty or whether there is a fault elsewhere (e.g. on your main board). (Mention this thread if getting in touch so Ash knows the background).
The only other thing I can suggest is a fresh ‘full manual software install’ in case the software has got corrupted, though that seems unlikely. That needs a full card reformat as per the instructions available on
www.pilotaware.com - or a new, correctly formatted card. Or it may be time to consider an upgrade to Rosetta
Regards
Peter