On Tue, 14 Aug 2007 22:31:58 -0400, Roger (K8RI) wrote:

A lot depends on the current installation, but you have the VHF/UHF
array at 60 feet. Being 10 feet above the top of the tower that is
quite a bending moment although to do that I'd assume you have the
rotator down inside the tower.

Good afternoon, Roger.

The VHF/UHF "array" is merely a vertical, Diamond X3200. I'm quite
certain it and the relatively thin wall mast supporting it will break LONG
before the tower does even with no additional guying.

However, today I started thinking about maybe putting up a 2-element
SteppIR, mostly because I need to operate on MARS frequencies that are
a ways outside the 20-meter band. No doubt that becomes a whole 'nother
ballgame. I'll start a new thread on that topic.

On Wed, 15 Aug 2007 13:30:17 -0400, "Rick (W-A-one-R-K-T)"
wrote:

On Tue, 14 Aug 2007 22:31:58 -0400, Roger (K8RI) wrote:

A lot depends on the current installation, but you have the VHF/UHF
array at 60 feet. Being 10 feet above the top of the tower that is
quite a bending moment although to do that I'd assume you have the
rotator down inside the tower.

Good afternoon, Roger.

The VHF/UHF "array" is merely a vertical, Diamond X3200. I'm quite
certain it and the relatively thin wall mast supporting it will break LONG

I think you'll be surprised at how much flexing tht antenna can take.
I've seen the one on the big tower bent over with the top appearing to
be 4 or 5 feet off from vertical. That's a long ways for a 21 foot
tall vertical.

before the tower does even with no additional guying.

I have two of the big Diamonds up. One is at roughly 30 feet on the
side of the big tower and the other is on top of 20' of 1 1/2" TV
masting on the3 North side of my shop. A third is going up on the big
tower for digtital at roughly 60 feet and the lower one is going to be
moved directly under it.

However, today I started thinking about maybe putting up a 2-element
SteppIR, mostly because I need to operate on MARS frequencies that are
a ways outside the 20-meter band. No doubt that becomes a whole 'nother
ballgame. I'll start a new thread on that topic.

Good Luck, es 73