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

[Bruce Ward]

Also a good and sane suggestion;

I bought land in a bad neighborhood for this site.  I bought into the 
bad neighborhood because of the proximity of fiber from two companies 
combined with good elevation.  The wireless link will be a third 
provider.  There are 4 meth labs within a thousand feet of the site.  I 
need the concrete building for security.

Initially I had planned for the building and tower to be separate but 
later decided to try to use the structure of the building to provide 
additional support or height for the tower.  A new Trylon or US Tower 
self supporting tower would cost more than the currently planned 
building and tower.

Thank you.





On 02/18/2012 07:15 PM, Steve Maki wrote:
> 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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