Topband: Using a DX-Engineering 80m vertical as part of an inverted L on 160?
Guy Olinger K2AV
olinger at bellsouth.net
Tue Nov 1 16:10:38 PDT 2011
Part of the mechanical problem of this is that two back guys to the
top of the vertical, and then the wire pulling away horizontal, exert
a downward compression force on the vertical, to the tune of 20 or
more pounds if there is a wind blowing. Visualize a bowling ball or
two on top of the vertical. It can be done, but it's touchy and makes
the vertical a lot more fragile than if only used as engineered.
Designers were considering the only weight involved was the vertical
On Tue, Nov 1, 2011 at 10:20 AM, WA8JXM <wa8jxm at gmail.com> wrote:
> I am wondering if anyone has used a DX-Engineering 80m vertical as the vertical part and the support for a 160m inverted L, connecting the rest of the required length to the top.
> Of course there would have to be one or two guys to counteract the pull of the horizontal part of the L. Seems like a reasonable way of getting a 65' vertical support.
> On a related note, how much real difference would a 65' vertical section make vs a 40' one (total radiator length being the same?)
> Although an eighth wave vertical portion seems like it would be worthwhile, I have to wonder if in the real world it would make a significant difference vs. a 40' vertical section.
> Ken WA8JXM
> UR RST IS ... ... ..9 QSB QSB - hw? BK
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