I've not flown a lot recently due to weather, I have Mode S and PLARM but don't recall seeing green circles around the plane (OK described in manual as close traffic no bearing) but I have recently seen:
a) a red dot on the plane
b) one white circle around it
c) two white circles
Note; no traffic observed in any of these cases - but doesn't mean it wasn't there!

Can't find any info on these in the literature.

Do I gather that I could now take an audio feed from SD for alerts and connect to my Radio Aux In ? That would be good (even if I did just spend 99E on an audio alarm license from PFLARM last week!



Europa farm strip flyer, Bedfordshire, UK