[TowerTalk] Rohn AS25G inside a 25G tower

[Steve Maki]

I lean toward mounting rotators a little further down in the tower, even 
just 2 or 3 feet further down. The top spot on R25 has no diagonals and 
it's a very weak point in any install that has much wind loading above 
the tower top. I've seen R25's fail right there.

If you select a location in the middle of the section, it's easy enough 
to fab a bolt-on replacement for whatever structural members are 
removed. This way rotator servicing is a breeze and the installation is 
much stronger.

-Steve K8LX

On 5/10/2015 2:44 PM, Roger (K8RI) on TT wrote:

> Cutting a brace is not an option to me.  Why cut a brace which is
> structural?   You are trying to fit a shelf or metal plate, which is not
> structural, into a tower section.  It makes sense to cut the non
> structural insert/shelf/plate.  I do remember that I could not insert
> the rotator (Ham IV) between braces and had to lower it down through the
> section while others could (It's in the archives), so there must be some
> variability in the brace spacing, or 25G look alike towers.  In your
> case if the rotator would not fit between the braces, you would need to
> insert the rotator first (from the bottom of the section and move up the
> section, then insert the shelf where it would fit modified if necessary
> as I don't think  lowering from the top is not an option.
>