Ground radials for vertical antenna, how long?
- December 16, 2019 at 10:43 am #2622N6AQKeymaster
Over the years I have had several vertical antenna setups, they were mono band antennas so the rule of thumb was to cut the ground radials 1/4 wavelength to the center of the operating area.
I began using a Zero Five 43′ multiband vertical 10-80 meters. The effective amount of radials is 32 per band for 7 bands is over 200 radials?
In a recent article I read on the matter length is also irrelevant if the radials are above ground with snow cover or in the ground.
So far the approach I have taken is to make 32 radials 43′ in length the same as the antenna itself.
If anyone has experience with this I look forward to hearing from you.
Attachments:You must be logged in to view attached files.May 8, 2020 at 4:50 pm #45446N6AQKeymaster
According to the zero five antenna manual that came with the antenna I guess 43′ is correct, who would have thought that reading the manual would clarify anything LOLOL. So I am at 63 radials which I guess is still presenting a 28% loss of efficiency and with a jump to 90 radials it decreases the loss to approximately 6%, well worth exploring.
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