On Wed, 14 Nov 2007 08:32:50 -0400, Herbert Schoenbohm wrote:
>In fact if the trunk is clean and fairly
>straight this could be done with a single rope over a top branch to pull up
>the cage.
When you say "cage" I think you're talking about bonds between the vertical
conductors along their length. Only tall palm trees and the like are built to
make it that easy. :) Most trees that can support high antennas have lots of
branches. You can pull up multiple wires, but not a cage.
>Most studies I have read on cages point out that it is the cage
>itself radiates most of the RF.
I wouldn't disagree with that -- to the extent that the wires look like a large
conductor and the field causes the current to be concentrated in the
circumference. It certainly is worth of study.
73,
Jim K9YC
_______________________________________________
Topband mailing list
Topband@contesting.com
http://lists.contesting.com/mailman/listinfo/topband
|