The only possible reason I can think of for burying the ends of
on-ground radials is the potential for high voltage at the end. Just
like being sure that you can't touch the end of a raised radial.
73 -- Larry -- W1DYJ
On 11/18/2022 14:43, Steve Dyer W1SRD via TowerTalk wrote:
I have a mish-mash of long, short, insulated, bare, solid, stranded,
thick, thin, on ground and below ground radials for 80 and 160 that
has accumulated over the years.
It doesn't matter. What matters is how many and length (coverage) with
rapidly diminishing returns after 60 or so. Plenty of research to back
that number. Make them as long as you can and as symmetrical as you
can for the land you have. If you have land to do a beautiful circle
of perfectly sized radials, great. Otherwise do the best you can.
Point being there is no reason for hand wringing over it. Tenths of a
dB on the low bands just don't matter.
73,
Steve
W1SRD
On 11/18/2022 10:23 AM, Jim Brown wrote:
On 11/18/2022 8:38 AM, Test wrote:
I'm about to install 20 radials for a Hi-Gain AV-18HT and Hi-Gain
recommends
burying the Radial ends if installing less than 60 radials.
There is ZERO reason for radials making electrical contact with the
earth. Their function is to provide return current for the antenna IN
PLACE OF the earth, which is very lossy (that is, it wastes
transmitter power), and to SHIELD the antenna's fields from the earth.
73, Jim K9YC
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