[TowerTalk] Guying Material and resonance

[Jwpjj at aol.com]

I am getting ready to install 90' of Rohn 25, base section is all  
done,concrete etc and so are the guying stancheons that are set in concrete as  well. I 
have the first 10' up and hopefully in a few weeks or so will be ready  for 
the rest of the installation. My question is what is preferred, steel guying  
cable or Phillystran cable. One of my concerns ( maybe it should not be) if I  
use steel guying installation, should I be concerned about resonance based on  
the lengths of guying cable. The tower will have a 4 el steppir at approx 98', 
 below that there will be a 3 element 40 meter monobander, prosistel rotator 
and  fed with LMR400. Will I need to break up the guys? It seems like it would 
be a  lot of work if I had too or should I just go for the Phillystran and 
don't be  concerned.  This is my first guyed tower as I have always have had 
crank  ups. I have seen a lot of pictures that have been on this forum and was  
wondering what most everyone else uses for guying  their towers. The guying  
lengths will be as per Rohn specs, 80% of total height to calculate guys  
lengths. 
 
John,  ND1X
 



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