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Re: [TowerTalk] Broadbanding 80 meter dipole

To: towertalk <towertalk@contesting.com>
Subject: Re: [TowerTalk] Broadbanding 80 meter dipole
From: Steve Maki <lists@oakcom.org>
Date: Fri, 18 Aug 2017 10:15:55 -0400
List-post: <mailto:towertalk@contesting.com>
That's the way I used to do it as well. I had alligator clip leads at the bottom end only on my sloping dipoles that jumpered around the bottom insulator for CW. Worked fine.

-Steve K8LX

On 8/17/2017 10:43 PM, Ed Sawyer wrote:
I have a 3 sloper array off the tower to the SE, SW, NW.  They are half wave
– loaded sloping dipoles that are about 80 ft long with loading coils to get
½ wave performance on 80.  I just switch in and out about 2.5 ft of wire to
make them resonate on 3550 vs 3775.  Its slightly OCF on CW but works like a
champ.  Very simple.  About 150 khz bandwidth (2:1).

I also have a 2 el W8JK style wire beam on 80 to the NE.  There I have feed
extenders for 80CW vs SSB that I manually swap out.  I also use a remote
tuner at the connect point of the open wire lines feeding the array because
the antenna is very narrow banded (75khz 2:1).  That also works wonderfully.

Ed  N1UR

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