[aklug] Re: WTB: freestanding tower

From: William McKinney <wdmckinney@me.com>
Date: Wed Jun 25 2014 - 22:31:25 AKDT

Rohn is sold locally, though it needs guyed. It's best to talk to a engineer for how much wind you have.

> On Jun 25, 2014, at 10:21 PM, Jeremy Austin <jhaustin@gmail.com> wrote:
>
>> On Wed, Jun 25, 2014 at 10:04 PM, Mike Tibor <tibor@tibor.org> wrote:
>> On Tue, 24 Jun 2014, Jeremy Austin wrote:
>>
>>> Anyone know who in the state might stock larger freestanding towers, if any?
>>> Looking in the 70-80 foot range, medium duty. Also would consider used if
>>> condition warrants.
>>
>> It might be best if you define what medium duty means in terms of wind load of the antennas you want to use.
>
> Thanks, Mike. I didn't start with a lot of details as it's a little OT for this list. That said, there are lots of communications folk on the list and I knew I'd get some good answers. Specifically I'm looking in the 15 to 30 square foot range, @ 100-120 mph. We get a lot of wind.
>
> Topically, I do use a lot of Linux to make my towers useful. :)
>
>> Be very careful considering used towers of any kind. The cost of the tower itself is almost always the cheapest part of the total cost. Other parts will be the cost of a properly sized foundation, delivery cost, assembly, adequate grounding, etc. A 70 ft. free standing tower will need a beefy foundation.
>
> Good advice. I have several free-standing towers, as well as guyed towers, pop-up masts, and the ol' roof pole here and there. I'm losing space on a colo tower (telco is out of copper, so to speak) and needing to add another myself.
>
>> That said, I believe most of the three-legged towers you see around Anchorage for certain cell sites, most SOA and Muni repeater sites, etc. are manufactured by Sabre Industries. Depending on the size of the antenna(s) you intend to install, those towers could be considered anything from light to very heavy duty.
>
> Sabre does have at least two lines that would work for this particular task, as does Titan. I have found a better match with Sabre.
>
>> For vendors, it's always possible Frigid North has something, but I believe they mostly deal in Rohn guyed towers. Note that Rohn has engineering specs on installing their guyed towers in a free-standing configuration, and it's possible Rohn 55g or 65g might work to 70 ft free standing, I don't really know.
>
> I can check on this, but Frigid North only has lighter towers in stock, I believe.
>
>> In addition to New Horizons Telecom, it might also be worth checking with North Slope Telecom. If all else fails, I guarantee that Marsh Creek can get you set up with exactly what you need, but it'll probably be pricey.
>
> Thanks for the leads. I will check them out.

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Received on Wed Jun 25 22:32:11 2014

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