On Fri, 18 Feb 2005 12:11:05 -0500, "Jim Miller"
wrote:

I'm putting up a doublet centerfed by 450 ohm ladderline. It will be about
50ft away from the house to the feedpoint of the antenna. We live on top of
a hill and winds here are often gusting to 60mph. The typical direction of
the wind is perpendicular to the ladderline and I'm concerned about it
whipping itself to death.

The ladder grabber at center of the doublet will be supported by a line
running from the house to a tree so I'm considering attaching the ladderline
to the support line leading to the house to minimize the whipping. The
ladderline has to come this way anyway. This support line will be
perpendicular to the axis of the antenna.

I briefly thought about threading the house line through the ladder windows
but that seemed likely to spoil the impedence especially if wet.

Any concerns or recommendations?

tnx
jtm


My ladderline seems to do fine on windy days, and I did nothing
special to limit movement. You might bring it directly to your shack,
and if the wind bothers it, just twist it as someone else has
suggested.

On your other question, about doublet length, if you make it 102 feet,
it'll be G5RV-length, and there are plenty of articles on how those
perform on the various bands.

bob
k5qwg