Sometime back, K4VX published a study in one of the mags concerning a study
he'd done as to the value in breaking up guy wires with insulators. His
results indicated no value in adding insulators, just use continuous guy
wires.
With that thought in mind, I use no insulators with two Rohn 58ft foldover
towers and don't see any problems with apparent aerial patterns (tribander
on one tower & 4 band WARAC/40M on the other) or SWR. One tower has
insulators at the guy wire junction with the tower so that it can be shunt
fed on 80M with excellent results, but the guy wires are otherwise
continuous to the earth.
I figured K4VX knows more about these things in a minute than I'll know the
rest of my life, and I think he's right.
73, W9XX
----- Original Message ----- From: <W4nf@aol.com>
To: <towertalk@contesting.com>
Sent: Monday, September 20, 1999 3:41 PM
Subject: [TowerTalk] Non Resonant Guy Wire Lengths
>
> My last message went out without a subject. Sorry about that. I think
I'll
> get better feedback with a subject line. Here is a copy of the orginal
> message. 73, Jack W4NF
>
> Hello All,
>
> The concrete will be cured to 28 days next Sunday and I'm planning on
> stacking the rest of the sections up to the final height of 75' on the Oct
2.
> I have guys at the 23' level right now and I just ordered the LOOS gage
to
> tension them to the proper limit.
>
> My question deals with the breakup of the next two set of guys. I will be
> stacking a second C3E sidemounted on the tower so I want to breakup the
> middle set of guys and the top set.
>
> The middle set will be 76' long so I thought I would break it up as
follows
> (starting from the tower and going down to the anchor: 4' - 54' - 18'.
>
> The top set will be 92' long and I was going to break up as follows: 4' -
> 54' - 27' - 7'.
>
> Please tell me if I'm doing anything fundamentally wrong with this
approach.
> I would prefer to keep them as long as possible as I'm going broke already
> with the purchase of the antennas, etc.
>
> Thanks for your help. Jack W4NF
>
> --
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>
>
--
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