[TenTec] OT: Openwire/Window Line and Bad Wx

Rick - DJ0IP / NJ0IP Rick at DJ0IP.de
Thu Aug 1 09:58:33 EDT 2013


Steve,

I hope you document the test on your web site.
It is extremely useful for people.

I'm afraid papers like Wes' scare people away from using commercial window
line and most people are afraid to build their own operwire line, so in the
end many people miss out on the benefits of using this type of feedline.

73
Rick, DJ0IP

-----Original Message-----
From: TenTec [mailto:tentec-bounces at contesting.com] On Behalf Of Steve Hunt

I've now run this experiment a further 3 times with pretty consistent
results: on average, adding the water dropped the velocity factor by 1.8%
and increased the matched loss by 0.25db/100ft at 26MHz.

That change in loss is way short of the nearly 2dB/100ft figure reported by
one of the on-line calculators.





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