[TowerTalk] How Helically Wound Verticals Really Work (was : Vertical dipoles)
David Gilbert
xdavid at cis-broadband.com
Thu Nov 19 10:49:36 PST 2009
How so?
Even a 0.5 inch cross section the length of a shortened 40m or 80m
antenna adds up to more area than the cross sectional area of a coil,
with a greater percentage of it up high where the leverage is greater.
And as someone else here said, it is easier to build a strong vertical
out of aluminum tubing than any kind of insulator that would be required
for a helically wound antenna.
Dave AB7E
Roger (K8RI) wrote:
>
>
> But a center loaded vertical has a high profile, high wind drag, and is
> more fragile than the helically wound vertical.
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