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Re: [TowerTalk] Fwd: balanced line loss on a mismatched antenna

Subject: Re: [TowerTalk] Fwd: balanced line loss on a mismatched antenna
From: Steve Hunt <steve@karinya.net>
Date: Thu, 01 Mar 2012 08:31:20 +0000
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
The ARRL Antenna Book has a section on "Resonance in Guy Wires" which 
includes a chart of lengths to avoid for the eight HF amateur bands. 
 From that chart, 26ft would be a **good choice** to avoid problems on 
every band except 17m.

I've no idea where N2IC got the idea that 26ft would cause "major 
pattern distortion" on 20m, 15m and 10m!

Steve G3TXQ



On 01/03/2012 01:53, HansLG@aol.com wrote:
> Wouldn't a 33 feet wire have a bigger impact? I believe that's the 1/2
> wavelength times 95%. Unless you have some good capacitance at the end, 26
> feet is a little too short.
>
> An insulated, 26 feet guy wire may have enough capacitance to the  tower
> and the ground to be resonant at 10, 15 and/or 20 but that will be  very
> dependant on the distances between the wire, ground and tower.
>
> Hans - N2JFS
>
>
>
>
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