FCC and FAA regulations tend to limit commercial towers to 2000'
The FAA will, almost as a matter of course, find any tower greater
than 1000' a "hazard to air navigation" and the FCC's ERP vs. height
curves have a severe penalty at 2000' feet above average terrain.
Last I knew, the tallest (broadcast) tower in the US was about 2100'
Except in the "wide open spaces" of the central US, the 2000' towers
are relatively rare. In most urban areas the tallest of the broadcast
towers will be in the 1500 to 1800 foot range (Raleigh NC is one of the
exceptions). In some areas, particularly the northeast Washington DC
being a prime example, the "big" towers seem to be in the 800 to
1000' range.
73,
... Joe, K4IK
> -----Original Message-----
> From: owner-towertalk@contesting.com
> [mailto:owner-towertalk@contesting.com]On Behalf Of mcduffie@actcom.net
> Sent: Sunday, December 09, 2001 11:29 PM
> To: towertalk@contesting.com
> Subject: Re: [TowerTalk] Tall
>
>
>
> On Sun, 9 Dec 2001 20:46:04 -0700, Barrie Smith wrote:
>
> > Amateur or commercial, what is a high tower, or which is the
> highest tower?
>
> I've often wondered that myself. I know that they exceed 2000' guyed.
> I've got a 2k in site of my roof. And then there are the self
> supporting ones. I don't know how tall they get. Sutro is about 1k,
> but I think there are taller ones.
>
> Gary
>
> ag0n at arrl dot net
> http colon slash slash mcduffie dot ws
> --
>
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-----
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List Sponsored by AN Wireless: AN Wireless handles Rohn tower systems,
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supporting towers up to 100 feet for under $1500!! http://www.anwireless.com
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