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Re: [TowerTalk] Wire antenna in trees?

To: towertalk@contesting.com
Subject: Re: [TowerTalk] Wire antenna in trees?
From: Jim Brown <jim@audiosystemsgroup.com>
Reply-to: jim@audiosystemsgroup.com
Date: Thu, 3 Aug 2017 09:53:59 -0700
List-post: <mailto:towertalk@contesting.com>
On 8/3/2017 9:10 AM, Patrick Greenlee wrote:
Depending on the insulation on your wire and the position on the wire, voltage node (peak or null) and power delivered to the antenna, you might find RF going to the contacted vegetation.

Yes, and this is a real issue if you're running power. I have experience with that.


Any chance you might be able to do a little pruning and avoid antenna to tree contact?

A good solution that K2RD showed me is to use the launcher to get a small line over a limb, use that to pull up something stronger, make that a continuous loop over the limb to the ground, tie a pulley to that loop, add a rope through the pulley, and pull the pulley up to the top. That rope through the pulley holds your antenna (and it could be one end of a dipole). Buy rope from http://ww5.synthetictextilesinc.com/

73, Jim K9YC

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