[TowerTalk] Long Masts -- Intermediate Bearing?

[Pete Smith]

At 10:44 AM 4/3/98 EST, K7LXC wrote:
> You can have some sort
>of fixture to hold it but most people use an additional accessory shelf with
>an additional thrust bearing. That way the mast is always captured. This'll
>work on 45G and 55G but not 25G. 
>
>     A bushing would work as well to hold the mast but probably involves more
>fabrication than the AS/TB version.

On advice from a local professional tower guy, I used a pointy top section
on my 25G. At least for the relatively light load I'm dealing with, it
works fine to hold the mast while the rotator is out.  I use a muffler
clamp above the pointy-top (actually two, for safety) to hold the mast up.
I suspect that a mast/antenna combination that is heavy enough to bend the
pointy top probably has no business being up there on 25G anyhow.


73,  Pete Smith N4ZR
In wild, wonderful, fairly rare WEST Virginia

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