[TowerTalk] Help for a New Tower

[Wayne Willenberg]

Checking out the insurance company that covers my house is a great idea --
I never thought of it.  Thank you.

On Tue, Apr 24, 2012 at 2:40 PM, Wayne Willenberg <wewill747 at gmail.com>wrote:

> Hello,
>
> I am at the very initial stages of planning my first tower.  Here is what
> I have done so far.  I have read Steve’s book “Up the Tower”, and ARRL’s
> “Antenna Towers for Radio Amateurs.”  I then visited the zoning department
> and the building permit department for my geographic area.  I have also
> read the CCNR’s for my neighborhood.
>
>
>
> I would like to install a 70 foot tower in my 5-acre, heavily wooded
> lot. (70 feet will put the antenna about 10 feet above the tallest trees.)
>  I would like to support one or more antennas on top of the tower having a
> total of about 20 square foot wind-load.
>
>
>
> There is no problem with the zoning department.  The building permit
> department told me I must meet Section 1609.1.1 (4.) of the 2006
> International Building Code.  The structure must meet TIA/EIA-222 for a
> 3-second gust of 130 MPH.  (I am only 8 miles from the Atlantic in South
> Carolina, so the area is rated for 100 MPH.)
>
>
>
> To comply with the neighborhood CCNR the tower must be “attached” to our
> 2-story house.  If I combine the high wind speed with the attachment
> requirement, I am initially led to the Rohn 55G Bracketed tower.  However,
> I cannot find specifications from Rohn that meet the 130 MPH requirement.
> The specs for the 55G only go up to a 3-second gust of 105 MPH.
>
>
>
> Where do I go from here?  Do I need to add guy wires to the upper
> sections?  If so, where do I get the specs for the guy wires? All
> suggestions would be welcomed for this new comer to towers.
>
>
>
> Thanks, Wayne
>