Gedas
The vertical dipole is about 60' horizontally from the tower so I would
suspect little interaction.
My ground here is very poor - Sandy gravel down to hard pan at 60' depth.
My antenna rope runs from the 140' level on my 160' tower, 240' horizontal
to the 95' level on my East tower.
I have 8 pulleys installed starting 40' from the tower at 6' increments
with 3/16 Dacron haul lines.
Makes it very easy to pull up a wire or single element antenna on a whim.
Ron
W7NN
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On Wed, Oct 21, 2020 at 3:36 PM Robert Harmon <k6uj@pacbell.net> wrote:
> Rich,
>
> I have never measured the ground conductivity here but I'm pretty sure it
> is prety good. We are close to wetlands adjacent to Carquinez Straight.
> And not too far from the Napa River.
>
> Bob
> K6UJ
>
>
>
>
> > On Oct 21, 2020, at 3:21 PM, Richard Smith <n6kt1@sbcglobal.net> wrote:
> >
> > Hi Bob,
> > How would you characterize your ground conductivity?
> > 73, Rich, N6KT
> > On Wednesday, October 21, 2020, 03:11:23 PM PDT, Robert Harmon <
> k6uj@pacbell.net> wrote:
> >
> > I actually did the same scenario here. I have a full size 40M dipole at
> 115 feet and I fabbed a vertical full size dipole for 40M and hung it from
> the side of the tower for comaprison. On DX the vertical won hands down on
> every sig. On closer in, stateside stuff stuff the horizontal dipole was
> the best. Not suprising, the vertical dipole has a lower angle of
> radiation. I also checked to be sure the tower wasn't interacting with the
> vertical dipole to be sure it didn't screw up th pattern. I am very
> pleased with the vertical dipole's performance (for DX)
> >
> > Bob
> > K6UJ
> >
> >
> >
> >
> >> On Oct 21, 2020, at 8:06 AM, Ron Hill <hamstuffbyw7nn@gmail.com> wrote:
> >>
> >> Last month I built a 40M vertical Dipole, resonant, full size and fed
> with
> >> a current balun. I hung it from my mid tower antenna support rope with
> the
> >> end support at 110'. Worked well and almost flat SWR across the band.
> I
> >> then installed a 40 meter full size flat top dipole from the same mid
> tower
> >> rope, at the same height, about 20' apart. A/B Tests showed 2 full S
> Units
> >> on receive in favor of the flat top on almost every signal heard over
> >> several nights.
> >>
> >> Just saying - I don't think I'd get too excited about a ground mounted
> >> vertical dipole.
> >>
> >> 73
> >> Ron
> >> W7NN
> >> www.HamStuff.com
> >>
> >> <
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> >>
> >> On Tue, Oct 20, 2020 at 9:42 AM k7lxc--- via TowerTalk <
> >> towertalk@contesting.com> wrote:
> >>
> >>> Howdy, TowerTalkians -
> >>>
> >>> Tnx for all your comments on the Greyline Performance antenna and
> >>> company. Seems to be a bunch of dissension to say the least. So
> what
> >>> other manufacturers of vertical dipoles would be worth doing business
> with?
> >>> I still think the antenna fits the bill for the installation but am
> looking
> >>> for options. Tnx! Cheers,Steve K7LXC
> >>> _______________________________________________
> >>>
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