[TowerTalk] Shunt Feeding a Vertical

[dj7ww at t-online.de]

Yes, there are many radials on the ground, a total of about 6km.
I found the position of the feed point is depending on my top loads.
After replacing my 5L 10m against a 7L OWA and the shorty-forty against the
3L FS I needed to move the feed point 3m up.

73
Peter

-----Original Message-----
From: TowerTalk [mailto:towertalk-bounces at contesting.com] On Behalf Of Jim
Thomson
Sent: Montag, 9. September 2019 05:58
To: towertalk at contesting.com
Subject: [TowerTalk] Shunt Feeding a Vertical

Date: Sat, 7 Sep 2019 08:23:17 +0200 (CEST)
From: "dj7ww at t-online.de" <dj7ww at t-online.de>
To: "towertalk at contesting.com" <towertalk at contesting.com>
Cc: "tower and HF Antenna Construction Topics."
<towertalk at contesting.com>
Subject: Re: [TowerTalk] Shunt Feeding a Vertical

<Indeed, my VNA showed exactly that change of R  when I did my climb to find
the connection point for 160m.

<I omitted the shunt wire and feed the "50 Ohms point" directly against a
single elevated sloping radial.
<That works very well for me for many years now.

<73
<Peter, DJ7WW

##  What you described, I  would  call a  quarter wave sloper.     Did you
install radials at  the  base of  the  tower ? 

Jim  VE7RF 

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