Bob Miller wrote:
I've heard rain affects balanced line, but I use standard insulated
450 ohm ladderline to feed a dipole, and I can't detect any SWR
changes when the line is wet or dry.

Some (biased) experiments have been performed with twinlead laying
on a wooden deck wetted by a soapy solution. Moral: Avoid soapy
horizontal ladder-line. :-)

I use the length of the ladder-line to tune my antenna system to
resonance. I have to change the length by up to 2% to compensate
for the rain, i.e. rain has a negligible effect on the tuning of
my antenna system.
--
73, Cecil http://www.qsl.net/w5dxp



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