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Re: [TowerTalk] 160 meter odditiy

To: towertalk@contesting.com
Subject: Re: [TowerTalk] 160 meter odditiy
From: Jim Brown <jim@audiosystemsgroup.com>
Reply-to: jim@audiosystemsgroup.com
Date: Wed, 07 Jan 2015 15:01:59 -0800
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
On Tue,1/6/2015 6:08 PM, john@kk9a.com wrote:
#12 wire is 0.080", #8 is 0.128.  This is not a big enough diameter change to 
make a difference.

A better way of saying that is that the difference is probably too small to matter, and does not account for what John is seeing. What CAN make a difference is insulation. While I haven't measured it, the insulation on THHN (ordinary house wire) lowers the resonance by a small amount, perhaps 1-2%. NEC does a calc for this if you enter the properties of the insulation and its thickness. It also accounts for conductor diameter.

73, Jim K9YC
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