Richard,
The OGN installation receives 868MHz FLARM or OGN Tracker signals via its OGN antenna and sends them on to the OGN servers, just the same as they always did. After upgrading to OGN-R, if there are any PilotAware equipped aircraft within range, and their signals are received by the PilotAware OGN-R antenna, the software causes the unit to 'Rebroadcast' any 'live' local 'OGN' data on 869.5MHz via the same PilotAware OGN-R antenna. This data can then be received and processed by any local PilotAware equipped aircraft and displayed on their Nav Display(s).
Received P3i data is also 'collected' from the PAW equipped aircraft and transferred to the OGN servers, so will appear on 'spot the gliders' or my preferred option
www.glidertracker.org which allows Glider
Bases to be aware of any such traffic. Gliders will only receive the PAW traffic if PAW equipped (and I know of quite a few which now are).
A recent screen grab from a very busy Milfield (taken while still over 10 miles out) is attached. I was inbound to land to check up on the new installation. Don't worry, the 'mass' of signals opens out as you get closer as the Nav system zooms in for landing. If merely 'passing', however, I would strongly suggest routing well clear of such a group - oh and keep a
very good lookout for other aircraft doing the same thing.
(My aircraft, by the way, is also FLARM equipped in its own right, though this had no influence whatsoever on the display in this case).
Regards
Peter