On Wed, 8 Feb 2012 23:33:29 -0800 (PST), Darryl Ramm
wrote:
won't see it, and so on. One possible thing would be to require all
drones =
to transmit and receive (and relay that traffic data to the
operator) on bo=
th UAT and 1090ES link layers. Seems too late to mandate dual-link
receiver=

Why not mandate all drones to carry Flarm? That would help full the
gaps left by all the "professional" technology.