[TowerTalk] Wire antenna in trees?

[Patrick Greenlee]

I forgot to mention this in previous email...  Outdoor shops and of 
course internet vendors like Amazon sell manually operated chain saws 
which are a length of chainsaw chain with handles.  You wrap the chain 
around a limb one half turn and pull the handles alternately to sever a 
branch or tree trunk.  When trying to put antennas in the woods you can 
put a "leader" in place by whatever means (air launch, casting rod, 
or??) and use that to pull a strong rope in place.  You then use that 
rope to pull the manual chainsaw into place (with a rope extension on 
the other side of it of course.)   Now with your boots safely (more on 
that in a moment) on the ground you can saw off a limb high in a tree. 
Safer than an extension ladder or climbing.  DO NOT STAND DIRECTLY UNDER 
THE LIMB YOU ARE CUTTING!!  Stand to one side so the falling limb 
doesn't "GET YOU."

You can make a few strategic cuts and get your wire(s) into the clear.  
Prune the branches more severely than needed at the time as some 
regrowth will occur and necessitate more pruning fairly soon if you 
don't allow for that regrowth.

Patrick        NJ5G

On 8/3/2017 11:53 AM, Jim Brown wrote:
> 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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