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[TowerTalk] Ground radials- the long and short of it

Subject: [TowerTalk] Ground radials- the long and short of it
From: dennis o'connor <>
Date: Fri, 22 Oct 2004 06:25:46 -0700
List-post: <>
On this subject, ON4UN states on page 9-11 of Low Band Dxing (3rd), "for a
wire ON the ground, the physical length for 1/4 wave resonance will be
approximately .14 wavelength". Can the shortening effect truly be this

My testing on sandy soils shows 45% to 60% shortening when on the ground - the better the soil the greater the shortening... You can do your own simple test... Hang a dipole - any length - chest high, measure the resonance point, drop it on the ground and find the resonance, pull it up in the air and measure...


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