New to this hobby and apologies if the answer is obvious, but I noticed my first
ADS-B (non transponder) Data Source and just wondered what it could be?
Ident was SPOTTER
It appeared to alternate between 100 ft and 50 ft in a short space of time.
It was located close to Draycot Aerodrome, south of Swindon, Wiltshire, UK.
Here’s what was reported: