[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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