"'Doc" wrote in message ...
Stephen Cowell wrote:
Plumber's Delight J-pole doesn't require
an insulator at all... I'd imagine that it could
take all the power you could pour into it,
probably take way over legal limit to melt
a half-inch copper pipe J-pole.
....
None at all? Are you real sure about that?
Think about it...
Well, you're welcome to come look in my garage...
I have a J-pole for 6 meters, shunt-fed. All parts
of the antenna/Q-line are at DC potential... it's
a solid piece of copper. You can ground the
'handle', hurts not a whit. If your J-pole has an
insulator in the middle, with a phasing section,
then it's a 'Super J', not a normal J. A normal
J-pole consists of the Q-line matching section
(the tuning fork part) and a half-wave radiator
just above that.
__
Steve
KI5YG
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