Also - one of the main concerns coming out of Europe is OGN, which has cracked Flarm encryption and doesn't need to abide by Stealth protocols. This is mostly open source software and Flarm ground stations with high gain antennas have ranges many multiples of the airborne units. So enterprising pilots/teams can create situations where everyone else is flying around with 2km range and their's is effectively unlimited.

I've got all the components to build a Flarm Ground Station collected - so I can see what it's capable of.

We might have to search you for cell phones before you take off - and make you turn them in.

Stay tuned.

9B