[Antennas] Tower

[AI4WM]

Check the Critical Towers website or the Radian website for the Rohn
catalog.  It is loaded with information on installing the tower.  I
have the same tower you have and plan to erect it sometime 2009.

The amount of concrete and the length of time from pour will vary
depending on your base infrastructure ( the buried steel section or
rebar).
Generally on our commercial installs we were able to start
contstruction in 2 weeks of pouring the base pillar, but sometimes it
was a month and many folks recommend a month.

Concrete is usually cured enough in 2 to 3 weeks to use, but it
continues to cure throughout its life.  The trick is to get the
correct mix and the correct air entrainment with the correct aggregate
for the foundation.

Depends where you live in FL you may be required to have a structural
engineer approve your planned installation to get you building permit.
 If you are lucky you live where towers are not restricted.

I can send the Rohn catalog file as an attachment to whomever wants
it.  It is a .pdf file and is 37.5 Mb.





On Fri, Aug 29, 2008 at 2:15 PM, Billy Cox <aa4nu at ix.netcom.com> wrote:
>
> Then you should be ready to go, and don't forget
> that normal concrete takes ~ 30 days to cure ...
>
> Look at the Rohn site again and you'll find the
> length of the normal base section if you are
> considering cutting the 6' section down ... thats
> not a big thing.
>
> The big thing here, is to follow the Rohn specs
> and use the proper base size and concrete for your
> setup, which needs to follow the self-supporting
> page, not the one for the guyed towers.
>
> 73 de Billy, AA4NU
>
>
> -----Original Message-----
> >From: "David C. Hallam" <dhallam at rapidsys.com>
> >Sent: Aug 29, 2008 6:08 PM
> >To: Antennas <Antennas at mailman.qth.net>
> >Subject: [Antennas] Tower
> >
> >I plan to put up two sections of Rohn 25G tower, 10' straight and 8' top.  I
> >will use this for a Butternut H6V vertical antenna.  This will be in FL with
> >sandy soil.  I have another section about 6' long to bury for the base.  How
> >long does this base mount section really need to be and how much concrete do
> >I need to use.  I have read what the website says about it.
> >
> >David
> >KC2JD/4
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--
73,
Bill
AI4WM