[TowerTalk] Guying Material and resonance

[bill rubin]

John,
I used both Phillystran and EHS.  I used Phillystran about 2/3 on the top
guy connected to EHS 1/4",  then about 1/3 Phillystran for the middle
connect to EHS 1/4", for the bottom i used just EHS 1/4.   Even if you can
afford to use all  Phillystran it is *Strongly recommended*
to use EHS 1/4 on the bottom 10 ft for protection against Fire or
vandalism.   I would ask the guys at texastowers.com for there support.

Also if you do not have the beams yet you may look at getting the new
steppir DB36 !!  additionally the Rohn45G is easier to climb.

FOLLOW THE ROHN SPECS.  radiancorp.com

see my project images on QRZ.com

73 Bill N1HWC



On Wed, Jun 11, 2008 at 1:42 PM, <Jwpjj at aol.com> wrote:

> 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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