[TowerTalk] 40 meter vertical ant

[Peter Voelpel]

And another advantage is its 5-7db groundgain. 
With my dipol at 100´and sloping ground I always outperform on transmit a
guy with a 2L-quad at 20m 150km away,
of course he is listening better.

73
Peter
  

-----Original Message-----
From: towertalk-bounces at contesting.com
[mailto:towertalk-bounces at contesting.com] On Behalf Of john at kk9a.com
Sent: Dienstag, 13. Februar 2007 00:27
To: TOWERTALK at contesting.com
Cc: Tom Osborne
Subject: [TowerTalk] 40 meter vertical ant

I have modeled this scenario and if I remember correctly, the dipole has a
slightly lower radiation angle which should be better for long haul DX.  It
is also much easier to install since you don't need radials.  I built a 20m
version with a parasitic reflector while staying at a beach home in Grand
Cayman, however I had SWR problems with it.  I believe this was due to the
coax running down the side of the antenna and I should have run the coax
horizontally away from the center of the antenna.

GL,
John KK9A / P40A  ex ZF2JB




To: "Towertalk" <towertalk at contesting.com>
Subject: [TowerTalk] 40 meter vertical ant
From: "Tom Osborne" <w7why at verizon.net>
Date: Sun, 11 Feb 2007 19:41:38 -0800
List-post: <mailto:towertalk at contesting.com>

Hi all

I have a 40 meter vertical with a bunch (50 or 60) radials.  I also have
been thinking of putting up a 40 meter vertical dipole.  Is there any
advantage to either or antenna.  Which works best for long haul contacts?
Thanks and 73
Tom 

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