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Topband: Polarisation coupling effects at MF??

To: "Topband Reflector" <>
Subject: Topband: Polarisation coupling effects at MF??
From: "LY2IJ" <>
Date: Sat, 13 Dec 2008 19:39:06 +0200 (EET)
List-post: <">>

I read few remarks like this in last few months on TB reflector:

> ...
> polarisation coupling effects that have to be considered at MF.  In some
> parts of the world you won't get good coupling into the ionosphere with
> horizontal polarisation at any height.
> ...

Just curios - what is the physics/mystic behind? Different laws on 160
than 80? Distnace to ionosphere is very different?

RU1A guys use some fixed beams and don't plan to dismount them:
Arkala extremes do something very wrong?

Arunas / LY2ij

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