[TowerTalk] How Helically Wound Verticals Really Work (was : Vertical dipoles)

[Steve Hunt]

Dan,

My model had a 1ft straight wire at the base, with 10ft of helical above 
it. I used 240 turns - couldn't do more without running out of EZNEC 
segments. The source was right at the bottom of the 1ft base wire. The 
current increased very slightly (1A to 1.003A) between the source and a 
point about 1" into the helix. After that it decreased steadily towards 
the top of the helix.

It didn't see the more significant "peak" in current which I have 
observed modelling other loading coils.

73,
Steve G3TXQ

Dan Zimmerman N3OX wrote:
>
> Steve, what's the current distribution look like on your helical model?
> Does it peak at the base or higher up?  Just curious.
>
> 73
> Dan
>