[TowerTalk] 80 meter vertical

[n0tt1 at juno.com]

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 at 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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