The professional "Arborists" use a cloth or leather bag filled with lead
shot and something called "tangle-free" line or similar to throw up in a
tree so that they can pull up a supporting rope for tree trimming etc. From
what I've seen, the bag is about the size of a tear drop shaped golf ball.
The idea of the shot instead of a solid weight is to make the bag less
damaging if it hits your house (or window) on the way down.
I have a neighbor who's son is an arborist, so I've watched him on several
occasions. It DOES take a bit of practice, but the line never seems to get
tangled.
I tried this with a few lead fishing weights on some thin nylon line and it
was a disaster. The secret is to use a thick enough line so that it won't
spin around itself and (mysteriously) tie itself in a knot way up in the
tree.
73, Charlie k3ICH
----- Original Message -----
From: "Fred Jensen" <k6...@foothill.net>
To: <elecraft@mailman.qth.net>
Sent: Thursday, June 26, 2014 8:05 PM
Subject: Re: [Elecraft] RF in the Trees
On 6/26/2014 4:12 PM, Rick Bates, WA6NHC wrote:
This may be off topic, but in light of it being Field Day Weekend in
the US....
It's radio, Eric will probably see it as relevant, unless we overdo it,
which we do at times. :-)
The arrow has an issue because it gets hung up or in branches and
doesn't have enough mass to pass through some branches or allow
gravity to pull it down. Should it comes later, the risks of
impalement can ruin the day.
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