Hello Charlie,
Do you mean if the vertical is leaning toward the north
there is a 3dB loss in the north direction????
Thanks for clearing that up for me!
73,
Ted K2QMF
On Sun, 20 Jan 2019 10:05:25 -0600 <n0tt1@juno.com> writes:
> I've wondered about that myself RE the vertical on a slope. I did
> a quick model of a 40m vertical that is leaning 45 deg over flat
> ground.
> If the vertical is say, leaning toward North, the elevation plot
> shows a
> little
> more than 3db "loss" in the vertical direction (cloud warmer). The
> azimuth plot shows ~4db F/B ratio that favors the "South"
> direction.
>
> Charlie, N0TT
>
> On Sat, 19 Jan 2019 21:58:31 -0500 <john@kk9a.com> writes:
> > That is a great question, I have wondered this many times when
> > operating on
> > the sloping terrain in VP2V and KP2. To my knowledge there is no
> > modeling
> > software that will show a vertical's pattern on a hill.
> >
> > John KK9A
> >
> > Tom Osborne w7why wrote:
> > Hi All
> >
> > I have tried putting up an 80 meter vertical 3 or 4 times. No
> > matter what
> > I do, it is never better than my twinlead fed 80 meter dipole up
> > about 65
> > feet.. This is both on close in stuff and longer range
> propagation.
> >
> > I tried it with the radials on the ground, with the feed point
> > elevated
> > about 6 - 8 feet with 4 raised radials, and about every
> combination
> > I can
> > think of.
> >
> > I was wondering if living on the side of a 450 foot hill makes a
> > difference? The hill slopes down to the bay below my house.
> >
> > I have a 20 meter HB beam up about 25 feet. f I walk to the east
>
> > about 25
> > feet, and look back, the 20 meter antenna looks like it is about
> 60
> > feet
> > up. Goes higher as I walk farther east down the hill.
> >
> > Do verticals work poorly on the side of a hill, or does it make
> any
> > difference at all?? Thanks and 73
> >
> > *Tom W7WHY*
> >
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