[Elecraft] Attic Antenna

David Cutter d.cutter at ntlworld.com
Sat Oct 28 08:19:04 EDT 2006


Julian

I agree with your sentiment.  My 'doublet' was nearly a loop, ie it followed 
the beams around the loft.  The ends were left open, about a foot apart.

David
G3UNA

----- Original Message ----- 
From: <g4ilo at qsl.net>
To: <elecraft at mailman.qth.net>
Sent: Saturday, October 28, 2006 12:22 PM
Subject: RE: [Elecraft] Attic Antenna


> I'm surprised with all this talk of dipoles and doublets that no-one has
> mentioned loops. I'm not an antenna expert, but it has always seemed to me
> that the efficiency of an antenna is somewhat related to the amount of 
> wire
> in the radiating element.
>
> You can get more wire in a loop round the periphery of an attic than you
> will get in a dipole strung in the apex of it. It may not give a 50 ohm
> match, but nor will the dipole except at one frequency. If you feed it 
> with
> ladder line and a balun, or a very short length of co-ax, feeder losses
> will be kept to a minimum. That's what I use.
>
> 73 de Julian, G4ILO. K2 #392
> G4ILO's Shack: http://www.g4ilo.com
>
>
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