[TowerTalk] Guy Breakers

[wa4dou@juno.com]

Hi Pete and Gang,
  My tower is only 52 ft. high. I elected to use Biggrips and
insulators(54 and 27 respectively)
in my guys. Phillistrand ,nor any other non-conductive substitute, for
real steel guy wire was
acceptable to me. The cost is minor to my tower. Hurricanes and sunlight
and long term 
affects are very real. My guys are broken up into 4-1/2; 12, 13, 14 , 14,
10(counting the anchor length) 
on the top guys and a similiar
pattern in the lower. I believe this is the only real and acceptable
"long term" solution. I've paid
for it once. I don't really expect to have to do it again.  73 Roy WA4DOU
Elm City, N.C. 
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On Fri, 04 Feb 2000 13:09:20 +0000 Pete Smith <n4zr@contesting.com>
writes:
> 
> At 02:34 AM 2/4/00 +0000, VE6YC wrote:
> >
> >Hi All:
> >Could some one please send me the recommended lengths
> >of guy wires to break up resonance.
> >I know this has been discussed here before, but I just get lost 
> >in the archives.
> >
> >Finally the 100 foot guyed tower is going to go up!
> 
> There are tables in the ARRL Handbook and Antenna Book.  They say 
> that
> grounded guys will exhibit resonances at odd multiples of a quarter
> wavelength, while ungrounded guys exhibit complicated behavior.  
> They say
> no  segment length over about 14 feet is free from resonances on all 
> bands
> through 28 mhz.
> 
> I have a 100-foot tower with grounded guys.  The lower 2 sets are 
> insulated
> from the tower near the tower end, while the top set have 21-foot 
> Joslyn
> fiberglass insulators at the tower end.  This arrangement appears to 
> work
> fine with yagis above the top guys, but modeling shows significant 
> pattern
> distortion when I stack a second tribander inside the guys, and 
> significant
> currents in the grounded guys from my 80-meter wire array.
> 
> Rather than spend the money on insulators and big grips, if I were 
> starting
> out from scratch I would use nonconductive guy material (Phillystran 
> or
> pultruded fiberglass) and avoid all guy-wire problems from the 
> start.
> 
> 73, Pete Smith N4ZR
> n4zr@contesting.com 
> 
> Don't forget to update your entry on the World Contest Station 
> Database, at
> http://206.102.70.3/search.htm
> 
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