Incoming radiation angles can be obtained by geometric calculation.
Pythagorus and all that, taking earth curvature, height of ionospheric
layers, number of hops, etc, etc, into account.


Then point your receiving beam into it, if it is adjustable in the vertical
plane. Very non-critical. Antenna apperture angles in the vertical plane
are extremely broad.


The stuff often comes in from more than one angle. Interference between the
different paths causes fading and distortion. An antenna will collect from
all vertical angles regardles of elevation.
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Reg

===================

"Art Unwin KB9MZ" wrote in message
m...
Looking for a site or information on incoming
radiation angles specifically for 160 metres.

1 How is it measured ?
1a Can it discriminate between vertical and horizontal
or what ever polarisation

2 What is the angles per percentage of contacts

3 Are they all horizontally polarised when subject to skip?
for distances over say 1000 miles distance

One well known DXer (Tom) stated on this
newsgroup that a horizontal dipole at 1/2 wave
length was inferior to his other antennas, but
no specifics given!

Appreciate any pointers on the above.
Happy New Year
Art