[TowerTalk] Galvenized Monopole Foundation

[Jonathan - KE0YBL]

Good thoughts, I had considered a similar approach, and that may really be the way to go.

Any thoughts on foundation design? Or cost thoughts on a reasonable PE if that's needed?

I'm committed to giving an answer on buying this sucker early tomorrow (or not), and the research didn't happen nearly as quickly as I had hoped. Hence my reaching out to the helpful folks here. :)

Jonathan

-------- Original Message --------
On Aug 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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