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Re: LF: Ground system

To: [email protected]
Subject: Re: LF: Ground system
From: Rik Strobbe <[email protected]>
Date: Fri, 27 Feb 2009 21:48:07 +0100
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Mal,

I have to disagree with that (at least at my location).
In 1998 (on 137kHz) I started with about 20 radials (15 to 50m long) on the ground. After replacing this by 5 radials (15 to 35m long) about 10cm in the ground and with a 2m earth stake at each end ground loss was reduced by 30%.
At my location the antenna is surrounded by many (100's) trees.
Maybe the situation is different in the open.

73, Rik  ON7YD - OR7T

Quoting mal hamilton <[email protected]>:

MF
A couple of elevated insulated radials will out perform dozens of buried radials, in fact 1 radial is vy effective, even insulated radials lying above ground are also efficient. I use 2 insulated 1/4 wave elevated radials on 500 khz and several lying on the ground for 137 khz. Using a loading coil in an elevated position on a vertical helps but remember twice as many turns are required as opposed to base loading hence more resistance, you might not be gaining as much advantage as you think.
de mal/g3kev




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