[Elecraft] RF in the Trees

[Edward R Cole]

I have used trees to hang "wire" in the past.

Now I use "metal trees" i.e. Rohn-25 and Rohn-45 metal trees.  Much 
easier to climb and they do not sway near as much.  Truthfully, the 
forest does not reach much higher than50-60 feet in my part of 
Alaska.  We get 50-60 mph winds each year (mainly in Nov-Dec) which 
lays the native white spruce and birch trees over to about 30 to 45 
degrees off plumb and no pulley system will handle that violence.  I 
had my anemometer blown off one of the towers last winter.  I guess 
it registered 65 when I came apart.  Just got a phone call, 
yesterday, that it had been rebuilt and on its way back from the factory.

Two falls ago we had some of the 60-foot spruce blown over that were 
pulled out by the roots!  Had heavy rain for two months beforehand 
that softened the soil.

I have two 50-foot ROHN-25 spaced 130 foot ad run an inverted-L 
between them and a 80/40m inverted-V hung from 40-feet on one at 
right angles to the inverted-L (which is tuned to 600m).

We have one member of the ARRL Experimental Group on 600m that has 
actually loaded a pine tree to act as a vertical antenna,  He wrapped 
a huge amount of wire around the base of the tree as a coupling coil.

73, Ed - KL7UW
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