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Old February 14th 04, 05:26 PM
Ian
 
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Hi Richard,

Horizontal polarisation from UK TV/radio TXs seems to travel a lot further
on the same power than vertical. The same has been found over distances
using 2m/70cm.

"Richard Clark" wrote in message
...
On Sat, 14 Feb 2004 14:44:08 -0000, "Richard"
wrote:
I think also you are saying use vertical polarization, because that
orientation always produces the sharper pattern. I never thought about

that.
I was though intending to mount vertically as it happens. Thanks.


Hi Richard,

I was careful to mention vertical polarization, because barring some
across-the-pond differences, that is what your broadcaster uses. If
you attempted to listen to them with horizontal polarized antennas,
you would suffer what is called "cross-polarization." The
consequences of this are signals that are down 20dB or more. If those
signals are circular polarized, then the vertical or horizontal would
work equally well (as long as that beam width was half the difference
of the two bearings).

73's
Richard Clark, KB7QHC





 
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