To: | [email protected] |
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Subject: | Re: LF: RE: 80 meter butternut conversion |
From: | Andy Talbot <[email protected]> |
Date: | Thu, 9 Feb 2012 16:12:35 +0000 |
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I have vertical of 7m height, with a top hat of 12m length making a T antenna. The capacity hat is made of three wires spaced by 200mm each. Total capacitance is 220pF and tunes with ~ 5mH.
Ground resistance is around 90 ohms when dry increasing to 110 ohms when raining (and yes that is correct that way round). Ground system is about 18 stakes randomly placed around the garden, all cross tied with buried 2.5mm copper wire. One run passing directly under the entire capacity hat.
Andy
On 9 February 2012 15:46, Rik Strobbe <[email protected]> wrote:
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