[TowerTalk] Mixing Rohn 20G and 25G

[Linux Mercedes]

Thanks! If I have extra tower capacity, which I should with something that
small, I'll need to find some other antennas to put up...


On Wed, Jul 9, 2014 at 6:58 AM, Scott Reed <sreed at nwwnet.net> wrote:

> As a WISP owner, I will not speak for your WISP, but all of our antennas
> are less than 2 sq ft wind load. Most weigh less than 5 lbs, so a little
> more than some TV antennas.
>
>
> On 7/1/2014 9:24 PM, Linux Mercedes 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 at gmail.com
>>>> CC: towertalk at 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 at kkbc.com  --  866-22-RADIO -- 866-227-2346
>>>> www.amgroundsystems.com
>>>>
>>>>
>>>> On Mon, Jun 30, 2014 at 7:42 PM, Linux Mercedes <
>>>> linuxmercedes at 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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>>>>> TowerTalk at contesting.com
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>>>>>
>>>>>  _______________________________________________
>>>>
>>>>
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>>>
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>>
>>
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>>
> --
> Scott Reed
> Owner
> NewWays Networking, LLC
> Wireless Networking
> Network Design, Installation and Administration
> Mikrotik Advanced Certified
> www.nwwnet.net
> (765) 855-1060  (765) 439-4253  Toll-free (855) 231-6239
>
>
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