[TowerTalk] Galvenized Monopole Foundation

[Mac]

Rethinking what Steve has just posted, yah you bet some outside rings 
and mast/rotor centering is solved big time in a very positive way solid 
way.  I'm all in now  mm

On 8/4/2020 8:49 PM, Steve Maki wrote:
> I would plan on mounting the rotator and mast outside of the pole, 
> rather than inside.
>
> I'd install a couple of "ring collars" - off the shelf weldments used 
> in the cell business - one at the pole top, and one down 6' or so. To 
> that you clamp a 4" or 5" pipe mount, which can be plumbed with no 
> trouble.
>
> Then to this pipe you can attach shelves at any height - one for the 
> rotator, and a couple for thrust bearings for example. You can make 
> this as heavy duty as you want, mostly with off the shelf parts - just 
> a little ingenuity and fab work required.
>
> BTW the ring collars come with three faces for clamping stuff, so you 
> could have some fixed yagis just below the tower top facing in 
> favorite directions.
>
> Anyway, it gives you way better flexibility and serviceability than 
> having stuff inside the pole.
>
> -Steve K8LX
>
> On 08/04/20 20:06 PM, Jonathan - KE0YBL via TowerTalk wrote:
>
>> Yep, planning on a small crane. Not sure this type of flange is ideal 
>> for a buried pier footing. I've not found specific details on those 
>> beyond conceptual, though.
>>
>> Also planning to fabricate a cross brace inside for rotator and also 
>> for thrust bearing, and perhaps a fiberglass cover... Unless I can 
>> find something field tested by others. Thanks for the reply.
> \
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