You have the right reference, K3LC. I think that's the one used in
Devolder's book, Low Band DX'ing.

(I don't have it in front of me at the moment)

73,

....hasan, N0AN
wrote in message
oups.com...
Reg, this whole thread started because bizarre things happen with
Radial_3 with short radials.

You can go ahead and put a caveat in it if you like, but it's wrong at
short lengths and that fact needs to be made clear to users of the
program, before they install a radial system of 120 2m radials on 80m
and find that it's a terrible ground system.

The question that I want answered is how to optimize my radial system,
and I think at this point, I shall be consulting a document entitled
"Maximum Gain Radial Ground Systems for Vertical Antennas" by K3LC.

Anyone have other suggestions for sources of material for optimum
radial selection given a certain length of wire?

73,
Dan

Reg Edwards wrote:
Frank, I am not interested is what happens at very short lengths or
what Radial_3 makes of it.

To determine Zo, start around 10 metres.

If very little happens to input impedance between 10 and and 15 metres
then you already have Zo = Zin = Ro + jXo.

Neither am I interested in efficiency or antenna input impedance..
The problem of Efficiency has already been sorted out.

etc.