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Topband: Back Scatter ?

To: Topband <topband@contesting.com>
Subject: Topband: Back Scatter ?
From: "K1FZ-Bruce" <k1fz@myfairpoint.net>
Reply-to: k1fz@myfairpoint.net
Date: Wed, 15 Jun 2016 11:20:01 -0400
List-post: <topband@contesting.com">mailto:topband@contesting.com>
 
 
 Been working to optimize the F/B on some antennas, using ground wave stations 
in the upper BCB band. Noticed that some weaker ~20 mile distant 5 KW stations 
that the back (reverse) signal
has QSB on them.  Think we used to call it back scatter years ago. Some are 
down in the noise and QSB up to about 1 S unit. 
 
We used to think back scatter was reflective variations in the ionosphere.   Is 
there any more recent information ?  Maybe carbon in varying cloud layers ?
 
73
Bruce-k1fz
 
http://www.qsl.net/k1fz/beverage_antenna.html
 
 
 
 
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