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Re: LF: Wire in the Air etc

To: [email protected]
Subject: Re: LF: Wire in the Air etc
From: "John Sexton" <[email protected]>
Date: Wed, 06 Jun 2001 10:25:11 -0700 (PDT)
Reply-to: [email protected]
Sender: <[email protected]>
Hi All,
Dick PA0SE mentioned recently that radiation from the loading coil is 
approximately equivalent to the radiation from a piece of wire of the same 
length. This must surely mean that the reduction in the size of the loading 
coil, when one can put more wire in the sky, does not just reduce loading coil 
losses resulting from the reduced RF resistance of the coil, but perhaps more 
importantly by moving radiated energy up and away from the earth, where it has 
some chance of not being absorbed by the immediate environment.
If this is so then elevating the loading coil, either by putting it high up the 
vertical element or simply by raising it as high above the ground as possible 
must contribute to an improved signal. Presumably as usual this will appear as 
a reduction in the resistance at resonance. This I think will be my next 
experiment. Alternatively a longer coil should raise the high voltage part of 
the coil and also reduce losses. Comments?
73, John, G4CNN

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