What has me worried from a PFA point of view. Is the big brother, spy aspect.
With these Mode S units, unlike the current A or C, they know who you are, registration wise.
Now I have often been confused by the permit aircraft operating remit of 'not over build up areas'. So will someone now be looking at a scope, looking at registrations, investigation infringements of use ??.
May all sound a bit far fetched, but I don't want to be the first in court to argue it.
As for those who without dc power. Do you really fancy hanging a radar receiver round your neck, or strapped to your leg next to your nether regions.
