[BC] Temporary roof mount for STL dish

[Craig Bowman]

Typically the weight is distributed such that the load is far less than 
a human.  I recently installed an aluminum 3.1M dish on the roof of a 
three story building.  The non-Pen required 100 concrete blocks.  The 
mount used four 5'X6' frames each of which held 25 blocks.  These were 
bolted together via legs which attached to the pole upon which to mount 
the dish.  The distributed weight of this 4,500 lb was 16 psf.  Far less 
than I.  And yes it was huge and yes it was a pain in the a**!

Craig Bowman
Durand, MI

Mark Humphrey wrote:
> Here's the link to Rohn's mount catalog which will help you determine
> the safe load under various wind conditions:
>
> http://www.radiancorp.com/ROHNNET/rohnnet2003/html/telecomcat/PDFs/Rohn%20Mounts%20Pg%20149_190.pdf
>
> I've used the non-penetrating Rohn 25 BRM mounts to support 6 foot
> Mark STL dishes and Scala Paraflectors.  These will allow the antennas
> to be mounted high enough to clear rooftop HVAC units, people, and
> other such obstructions.
>
> Disclaimer: You need to determine if the roof can handle the
> additional weight before installing one of these, but its often
> possible if located directly above a column.   Have a structural
> engineer review and approve your plans.
>
> Mark
>
> On Tue, Mar 10, 2009 at 9:21 AM,  <Xmitters at aol.com> wrote:
>   
>> Hello:
>>
>> We are about to embark in an STL experiment here at NIU.
>>
>> I have a 4 foot Anexter Mark grid dish that I want to place at the top of one
>> of our buildings here. Since it's temporary, I need something that I can sit
>> on the roof, not poke any holes,  that will hold the dish rigidly enough so
>> movement will not affect our RF signal level experiments.
>>
>> What's out there that will do this?
>>
>>     
>
>
>