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Low Band Antennas

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Ground radials for vertical antenna, how long?

Home Forums Low Band Antennas Ground radials for vertical antenna, how long?

last updated by N6AQ 4 months, 2 weeks ago
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  • #2622
    N6AQ
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    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.

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    #45446
    N6AQ
    Keymaster

    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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