[TowerTalk] Open wire

[Bill Harris]

Jim is right on...However, if you want to use the antenna on other bands 
you're best off using open line.
YMMV
KXBill

--------------------------------------------------
From: "Jim Brown" <jim at audiosystemsgroup.com>
Sent: Monday, September 28, 2009 11:52 AM
To: "TowerTalk" <towertalk at contesting.com>
Subject: Re: [TowerTalk] Open wire

> On Mon, 28 Sep 2009 14:42:11 -0400, w4lde wrote:
>
>>I am feeding a 80 meter center feed with open wire, about 100ft feed-line.
>
> Open wire line is highly over-rated, especially on a resonant antenna. Do
> yourself a favor and buy 100 ft of RG8 or RG11. Now, you can add a coaxial
> ferrite choke at the feedpoint, which will likely make the antenna quieter
> on receive and minimize RF in your shack (and your neighbors homes). The
> loss in 100 ft of RG8 or RG11 is negligible on 80M, even with 5:1 
> mismatch,
> which is about as bad as it can get at the band edges. See my tutorial for
> details on the coaxial choke. http://audiosystemsgroup.com/RFI-Ham.pdf
>
> 73,
>
> Jim Brown K9YC
>
>
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