Guys,
Reviewing the wireman's "Loss Graph for Matched Transmission Lines" chart,
and I noticed #12AWG Twin Open Wire, as having the lowest loss by a long
way. I guess I have never seen Open Wire as shown on a chart before to
reinforce just how low the loss really is.
Being a novice antenna guru, I have a few questions:
How far away from the ground does this stuff need to be?
What are the drawbacks of using it?
I have a remote dipole that this stuff might be just the ticket for a long
run. I have always used coax, except for some plastic windowed ladder
line, which always worked nicely, but according to the chart has more loss
that the Twin Open Wire.
My guess is that this is the 6" spaced feedline I have seen before. I
would make this and wonder what people use for the spacers, what spacing is
required, etc.
Thanks,
Eric Moore, K8CCA
** Digi-Face **
The Economical radio to computer interface
Get on the Digital modes PSK-31/RTTY/SSTV
http://www.i2k.com/~emoore/Digi-face.htm
List Sponsored by AN Wireless: AN Wireless handles Rohn tower systems,
Trylon Titan towers, coax, hardline and more. Also check out our self
supporting towers up to 96 feet for under $1500!! http://www.anwireless.com
-----
FAQ on WWW: http://www.contesting.com/FAQ/towertalk
Submissions: towertalk@contesting.com
Administrative requests: towertalk-REQUEST@contesting.com
Problems: owner-towertalk@contesting.com
|