Two levels of guy is what my concern would be. I am in as now and be home in PA
next week.
I have a library or Rohn catalogs and in the older ones I have the full spec on
r 25 -G.
But if my gray matter serves me well R 25- Gg is not suitable for guying let
alone two levels .
And this was the old spec. So with out a house bracket your walking on thin ice.
YMMV
Wayne W3EA
Sent from my iPad
On Jul 1, 2014, at 6:24 PM, "Linux Mercedes" <linuxmercedes@gmail.com> wrote:
> Wayne,
>
> I'll primarily be using it for wireless internet. Unfortunately, the tech at
> the WISP I spoke to was pretty vague about the wind load of the antenna
> they'll be using, but he assured me it would be 'minimal' and didn't think it
> would be that big of a concern.
>
> I won't be house bracketing this install, but it will be guyed at two levels
> (what Rohn recommends for 50' of 25G).
>
> --Nathan
>
> On 07/01/2014 09:59 AM, Wayne Kline wrote:
>> I also have experience with 20-G and 25-G towers... @ my station my
>> 2mter/450 MHZ and one 6 meter beam
>> 5 element 14' boom are on at 36ft. an consist of 3 sections of 20-G and a
>> top of 25-G AG3 ? it's house bracketed @ 18 ft.
>> Been in place for 24 years BUT extremely light wind load.
>>
>> IMHO @ HF a C-3. TA33 or A3 would be the BIGGEST .
>>
>> So my question to you is WHAT are you planning to adorn the tower with ?
>>
>> Wayne W3EA . .
>>
>>
>>> Date: Tue, 1 Jul 2014 07:42:14 -0500
>>> From: kkbroadcastengineering@gmail.com
>>> CC: towertalk@contesting.com
>>> Subject: Re: [TowerTalk] Mixing Rohn 20G and 25G
>>>
>>> Nathan,
>>>
>>> I would caution you to not mix the sections nor even use the 20 for
>>> anything more than VERY light duty use.
>>>
>>> With that said... Back in my younger days when I did a lot of tower work
>>> for CB and Ham operators, there were a number of mixed 20/25 towers
>>> supporting large CB antennas and they stayed up many years. I do recall
>>> working on one where the 20 top section physically broke during a wind
>>> storm.
>>>
>>> Climbing a mixed 20/25 tower is a real pain as the steps are different
>>> distances apart.
>>>
>>> Good luck,
>>>
>>> Kevin C. Kidd, CSRE/AMD
>>> AM Ground Systems Company - WD4RAT
>>> kkidd@kkbc.com -- 866-22-RADIO -- 866-227-2346
>>> www.amgroundsystems.com
>>>
>>>
>>> On Mon, Jun 30, 2014 at 7:42 PM, Linux Mercedes <linuxmercedes@gmail.com>
>>> wrote:
>>>
>>>> Hello,
>>>>
>>>> Whilst moving tower sections from the shed to the shop so I could clean
>>>> them up and make a couple of fixes before putting up my tower, I noticed
>>>> that some of them seemed lighter than others. Turns out I've got a mix of
>>>> 20G and 25G sections.
>>>>
>>>> What are your thoughts on putting up, say, 30 or 40 feet of 25G and then
>>>> another 20 or 10 feet of 20G? I'd like to use the best sections I have on
>>>> the tower, but if mixing is a no, then I'll fix up some of the other
>>>> sections I have and build a homogeneous tower.
>>>>
>>>> Thanks,
>>>> Nathan
>>>> _______________________________________________
>>>>
>>>>
>>>>
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