[TowerTalk] Request for Advice - Rohn 25 vs TRI-EX HZN 471

Steve Maki lists at oakcom.org
Sat Feb 18 17:15:09 PST 2012


Bruce,

To me it sounds like a nutty idea, though there's nothing wrong with 
that. But really, why not put up a less ambitious building to house your 
servers, and install a nice 100' Trylon self supporter or something like 
that?

I think in the end you will be happy that you put up a tower and a 
building and didn't try to commingle the two.

-Steve K8LX

On 2/18/2012 7:33 PM, Bruce Ward wrote:
> Mark,
>
> You make a very sane suggestion.
>
> My reason for putting the tower on top of the building, if I do, is to
> get an extra 8' to 10' of height.  The building will be sufficient to
> handle the 1100 pound weight plus the horizontal wind loads.
>
> The tower site is covered in 60' plus trees and there is a similar
> height hill with similar height trees between my tower and the far end.
> I need to get above the trees plus above the fresnel zone so I want to
> go as high as I can.
>
> If I use the Rohn 25G we will add sections until we are high enough.
> This method could mean that I have to build sufficient structure to
> bracket even higher than 35'.  I would place the bottom section Rohn 25G
> on the ground (a concrete base) and bracket it to a pole embedded into
> the building.
>
> If I use the the TRI-EX I am stuck with its 70' height plus a 10' mast.
> Since it is a one shot deal I would like to start as high as I can.
>
> Thank you.



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