Hi,

other. In the book it says, ". . . when two stations use helical
antennas over a non reflective path, both must use antennas with the
same polarization sense.." I find this could be interpreted in
different ways and is not clear at all. It seems logical to me that if
both antennas had the same polarization that when they faced each other
they two helices would be in opposite directions and that would seem to
be bad. Am I right?

On your first point, imagine you've constructed a long, long
helix that starts at your location and travels all the way to the
other station. It is logical that a wave launched by you would
then travel unimpeded along it to the far location. Now cut the
helix in the middle and turn one end around. What you will then
see is two helices rotating in the same direction, that is both
ends will have the same direction of rotation.

Can't help you with the rest unfortunately.


Cheers - Joe