Lee,
Almost all of my logs (the last 8 at least) contain these PFLAA sentences. To confirm your theory not a single sentence shows a relative vertical distance of less than 100 feet. If its of interest I noted a lot of the PFLAA alarm level 3 messages seem clustered around a relative vertical distance of 59m to 62m. Or is this a function of sensitivity setting? Some of the alerts are seen when descending or climbing.
I concur these are most likely my own target. I've a new bridge now as I've upgraded to Rosetta but haven't flown with this yet.
Not sure I opened the door during flight or dangled my PAW unit out of the window so unsure there was any sudden change of air pressure
If you want any more track files let me know. I'll retest with Rosetta shortly and advise if I am seeing the same ghost targets.
Thanks for the email btw.