[Elecraft] Fw: Elecraft Antennas in trees

[K7TV]

FWIW I'd like to relate what I saw at the recent Field Day.

The antenna crew used an air gun, similar, I think, to the ones used with
tennis balls, but the projectile was a small cylinder about 1" in diameter
and length, probably metal. The air reservoir was charged using a pump
designed to inflate tires. A valve seemingly designed for lawn sprinkler
systems was used with an electrical circuit to release the air charge into
the pvc pipe barrel. The shooter did not aim for a specific branch but at a
very steep angle over the top of the tree. This system had no problem
getting the projectile way above the tops of tall pine trees. Due to the
steep shooting angle, the projectile with fishing line also came down
steeply on the other side (good idea if there is a building that you don't
want to hit!). At this point the line was on top of several branches, big
and small. The shooter would slowly pull the line back, directed by a second
person with the projectile in view. This way several small branches were
cleared without snagging the projectile. When the projectile was hanging
down from a sturdy branch, the line was released to get it down to the
ground. 

Erik K7TV
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