Antenna question about above ground term
 

Hello folks,

I was reading this website:
http://www.qsl.net/aa3rl/ant2.html. It got me thinking. In
general, does the term "above ground" refer to the actual Earth ground
or does it refer to an antenna's ground plane (not necessarily Earth
ground)?

I was looking at the radiation patterns, and I got curious what would
happen if a dipole antenna is attached to a bird (for example). Will
the radiation pattern change as the bird's flying height changes? Or
will the flying antenna maintain the same radiation pattern as a
"normal" antenna that is mounted on a mast at the same height?

Thanks!

Antenna question about above ground term
 

Troll, troll, troll your boat...

Antenna question about above ground term
 

The pattern changes the pattern changes like it is shown partially in
your URL.
More lobes as more higher fly you imaginary bird. But, too much height
is already "free space" ;)

Miguel Ghezzi (LU 6ETJ)