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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