[MRCG] HF Ground-to-air comms

[Tim]

Hi Andy!
Well I think the determining factor in ground-to-air is not the aircraft
transmitter power or the efficiency of its antenna system - the BC-611
still radiates only a very small fraction of that 360 mW transmitter.
Maybe a few milliwatts..
A center loaded 8 foot whip with a high Q coil, on a large vehicle with
reasonable ground coupling is only a few percent at best on 80 meters.  The
BC-611 antenna system is probably much less than that.  A '611 on the
ground could certainly hear almost anything nearby - but I think that's
only half the problem in a 2-way circuit.  No?