[TowerTalk] Odd Rohn free-standing antenna area specs

[Curtis, David B]

That is the assumption made in EIA/TIA-222, which I gather is consistent
with the assumption in most building codes.

It is also consistent with my personal experience.... icing conditions are
less windy storms. Disclaimer: my experience with icing is North American
midwest... not Cape Horn, etc... :-)

-n6nz

-----Original Message-----
From: Al Williams [mailto:alwilliams@olywa.net]
Sent: Wednesday, June 14, 2000 9:44 AM
To: Tower2sell@aol.com; zippy@sunsetd.com; towertalk@contesting.com
Subject: Re: [TowerTalk] Odd Rohn free-standing antenna area specs



Please interpret--Does this reply mean that when there is an ice condition,
that the wind speed will be less?????

k7puc


-----Original Message-----
From: Tower2sell@aol.com <Tower2sell@aol.com>
To: zippy@sunsetd.com <zippy@sunsetd.com>; towertalk@contesting.com
<towertalk@contesting.com>
Date: Wednesday, June 14, 2000 7:38 AM
Subject: Re: [TowerTalk] Odd Rohn free-standing antenna area specs


>
>In a message dated Wed, 14 Jun 2000  9:05:51 AM Eastern Daylight Time, Ryan
Niemi - AV <zippy@sunsetd.com> writes:
>
>It's because the the wind pressure for the ice condition is reduced to 75%
of the Basic Wind Speed. In these cases the Basic Wind controls not the ice.
>
>Tower2sell@aol.com
><<
>
>Hello,
>
>Has anyone looked at the Rohn specs for using 25, 45, 55 and 65 in
>free-standing installation?  If not, take a peek at:
>
>http://www.rohnnet.com/CommPro/Towers/Bracketed/SStowers.htm
>
>The thing I find particularly odd is the allowed antenna areas with no ice
>vs. 1/2 inch ice.  Does anyone know why Rohn says you can have *more*
>antenna area with ice than without in many of the listings?  It's most
>dramatic on the 65G, letting you go up to 50' free-standing before the no
>ice figures start to overtake the ice figures.  Weird..
>
>-Ryan
>
>
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