Topband: K2AV 160m Folded Counterpoise Antenna - New Details Posted

[W0UCE]

We built and tested a window line FCP - when it was dry and wet...  it was a
dismal failure.  

 

Been there, done that and I have three lengths of window line cut and
connected together in a 33, 66, 66 section globs in my storage shed.  It is
available immediately to the highest bidder, shipping and handling at
buyer's expense...

 

And... BTW: A loss calculator for wet or dry window line available at:
http://vk1od.net/calc/tl/tlc.php  

 

 

>sense.  It is well known that window line is >lossy when wet.

I am curious if anyone has actually measured this over a range of
frequencies. Afaik, the "it's lossy when wet" is based on a model that I've
seen some say overstates the loss for a wet window line.

>  I am feeding my vertical
>using 850 feet of open wire line with XHHW >insulation (whatever
>that is made out of).

XHHW uses cross-linked polyethylene insulation. It is very tough (it's used
on triplex-type power lines), and I would expect it to have essentially the
same electrical properties as "regular" polyethylene wire since it's very
nearly the same chemical composition.


>  It would be interesting to measure the
>loss on a rainy day and see how much it >increased. 
>Rick N6RK

You could probably do a more controlled test just wetting the lines with a
garden hose :-)

-Bill

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