[TowerTalk] shunt fed tower and dipole interaction

[Drax Felton]

I have a similar configuration.  My dipole does interact with the tower.
I can see the tower's SWR rise and fall as I raise and lower the dipole on
its pulley.

Doesn't seem to matter at all.  I've run it with and without the dipole and
the subjective performance is the same.
I just tune it out using the capacitor at the tower base and/or adjusting
the shunt wire.

Having the tower vertical is WAY worth it. The DX possibilities are a lot
better than I ever had with a horizontal wire.



----Original Message-----
Message: 8
Date: Fri, 8 Oct 2010 06:44:24 -0700 (PDT)
From: Gary Slagel <gdslagel at yahoo.com>
Subject: [TowerTalk] shunt fed tower and dipole interaction
To: TowerTalk <towertalk at contesting.com>
Message-ID: <827038.35596.qm at web52601.mail.re2.yahoo.com>
Content-Type: text/plain; charset=iso-8859-1

Hi guys,
?
I've got a 51' tower with a tribander at about 56'.? I've also got a
40/80/160 trap inv vee hanging at about 50' off the tower.? 40 works
reasonably well, 80 just ok and 160 pretty much not at all at that height.? 
?
I'm thinking of shunt feeding the tower for 80 and 160.? Am I going to get
so much interaction between the loaded tower and the 80/160 dipole that its
really not worth doing?? Or... since their vertical and horizontal polarized
will the interaction not be much of an issue??