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Re: [TowerTalk] Tower mast..

To: "JC Smith" <jc-smith@comcast.net>,"'Merlin-7 KI4ILB'" <merlin-7@sc.rr.com>, <TOWERTALK@contesting.com>
Subject: Re: [TowerTalk] Tower mast..
From: "K8RI on TowerTalk" <K8RI-on-TowerTalk@tm.net>
Date: Tue, 19 Sep 2006 03:23:53 -0400
List-post: <mailto:towertalk@contesting.com>
When you figure in the cost of the mast, couplings, labor and what ever else 
I forgot you can purchase a pretty nice rotator.  Hunt the used market and 
you can pick up a very good one.
If just running the quad at 80 feet you don't need one of the super big 
rotators and unless climbing is a problem I'd put the rotator about 10 feet 
down from the top, but that's strictly a personal opinions.

Roger Halstead (K8RI and ARRL 40 year Life Member)
N833R - World's oldest Debonair CD-2
www.rogerhalstead.com (Use return address from home page)

> Hi Joe,
>
> If you really want to run a mast all the way to the bottom of the tower 
> I'd
> go find a used thrust bearing (the kind that's designed to support both
> axial and radial loads) at the junkyard for it to set on and use a rotor
> shelf, which you can use later when you get a real rotor, to secure it to
> the bottom of the tower.  That steel ball sounds a little hokey to me.
> You'll need to design some sort of decent brake to keep it from wrapping 
> up
> your coax.  Why not just buy a decent rotor?  Can't add too much to the 
> cost
> of the project when you figure in all that extended mast stuff.
>
> 73 - JC, K0HPS
>
> -----Original Message-----
> From: towertalk-bounces@contesting.com
> [mailto:towertalk-bounces@contesting.com]On Behalf Of Merlin-7 KI4ILB
> Sent: Monday, September 18, 2006 2:58 PM
> To: TOWERTALK@contesting.com
> Subject: [TowerTalk] Tower mast..
>
> I have been thinking about setting up my rhon 45 tower and have been
> dwelling a bit on the mast.
> I was thinking about having the mast go thru the tower all the way to
> ground level and placing the rotor there.
> I was also thinking about placing a big steel ball of somekind in the
> bottom of the mast that would rest in a divot at the towers base. That 
> would
> take a lot of the weight load off of the Thrust Bearings.
>
> What do you think?
> Joe
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