[TowerTalk] guy wire resonance

K8RI on Tower talk k8ri-tower at charter.net
Fri Dec 23 18:13:13 EST 2005


How in the devil could ice, even falling ice cut Phillystran?  Did some 
antenna parts come down too? When it comes to cutting Phillystran I gave up 
trying to use a box cutter and finally went to the same cable cutter I use 
on EHS.  I could not cut through the stuff with a knife intentionally.

I use 4000# for the bottom two levels and 6000# for the top.

Roger Halstead (K8RI and ARRL 40 year Life Member)
N833R - World's oldest Debonair CD-2
www.rogerhalstead.com

>I am replacing some guy wires on a 70' Rohn 25 with a 40m beam. What is the 
>spacing between the insulators so the guys are not resonant? The guys are 
>3/16" EHS and I am using the 500D insulators. I lost 3 guys due to ice 
>storm last week, the Phillystran was cut in half on the top 2 guys but the 
>bottom guy with all steel cable was undamaged. It was the 4000lb 
>Phillystran.
>
> Dave
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