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Old October 17th 05, 10:34 PM
Owen Duffy
 
Posts: n/a
Default Dumb Antenna Questions

On 16 Oct 2005 19:35:05 -0700, "Rockinghorse Winner"
wrote:


or 100 watts output? Also, I have a question about the insulated
wi is the insulation an impediment to the functioning of the
antenna on HF? Thanks for being patient with a newbie.


Don't overlook the fact that in most cases, insulation increases the
wind resistance and increases the mass (weight) of wire antennas, so
reducing the survival in strong winds, while not improving the
radiation performance.

Further, the insulation will degrade more quickly than bare copper in
all but the most corrosive environments.

Don't change your plans now... but something to keep in mind for the
future, especially for long spans.

You might ask, if insulated stranded annealed copper is a poor choice
compared to say single core hard draw copper or Copperweld, why do so
many people use insulated stranded annealed copper? I guess it comes
down to availability, and that amateurs seem to not design wire
antennas to survive high winds.

Owen
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