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@20m 150km away,
of course he is listening better.
73
Peter
-----Original Message-----
From: towertalk-bounces@contesting.com
[mailto:towertalk-bounces@contesting.com] On Behalf Of john@kk9a.com
Sent: Dienstag, 13. Februar 2007 00:27
To: TOWERTALK@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@contesting.com>
Subject: [TowerTalk] 40 meter vertical ant
From: "Tom Osborne" <w7why@verizon.net>
Date: Sun, 11 Feb 2007 19:41:38 -0800
List-post: <mailto:towertalk@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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