[TowerTalk] Wire antenna in trees?

Jim Brown jim at audiosystemsgroup.com
Thu Aug 3 12:53:59 EDT 2017


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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