K4SAV wrote:
> I often see the quote that making a vertical (or inverted L) longer than
> a quarter wave reduces ground loss because the radiation resistance goes
> up. I would like to believe that, because that is what I am using for
> an antenna, but I don't want to kid myself. I'll admit that the
About 10 years ago, I built a 1/4 wave 20 meter vertical with
32 1/4 wave radials and compared it to a 1/2 wave 20 meter vertical
with 4 4 foot radials. No difference at all. So the 1/2 wave
vertical not only didn't require more radials, it basically didn't
need any radials at all. (Yes I know WWVH says they needed
radials on their halfwave vertical. Not my experience.)
> I was going to let the "useless horizontal waves" comment pass, but
> while I'm at it I may as well take a swipe at that too. Most people
> that use dipoles, inverted vees, and Yagi's don't think they are useless.
>
> Jerry, K4SAV
The comment was specific to 160 meters and was in reference to
adding horizontally polarized radiation to a vertical. Maybe that
wasn't clear. If the only antenna you have on 160 is a dipole,
it is better than nothing. Compared to a vertical, it is generally
ineffective. As with everything, there are "corner cases". I
use only Yagi's above 4 MHz. Propagation is different up there.
Rick N6RK
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