[TowerTalk] Galvenized Monopole Foundation

[Jeff DePolo]

> 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.

> -Steve K8LX

Along the save lines as what Steve said, you could even side-mount a short
section of 25G near the top and then be able to use an off-the-shelf rotor
plate, thrust bearing, etc..  We did this on a large-face tower (Stainless
G10) in order to hold a rotor and bearing for a 2 GHz steerable dish, and in
another case on a smaller tower (48" face) for a steerable VHF yagi.  A
beefy collar suitable to hold a platform would be plenty strong enough to do
this on a monopole, then it would just be a matter of the attachment to the
25G, preferably grabbing all three legs. 

Chain mounts are a cheap and easy way to add side-arms for VHF omnis and the
like anywhere along the length of the pole.

				--- Jeff WN3A



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