[TowerTalk] rotor question

[Joe Giacobello]

Greg, thread locking adhesive, such as Loctite or Permabond types, is 
essential here.  Otherwise I suffer the same bolt loosening problems as 
you have.

73, Joe
K2XX

Gregg Seidl wrote:
> I was just doing some of the planned antenna/tower work here lately.Went up 
> tower 1 which is 80 feet of Rohn 45.Noticed the mast clamp on the M2 Orion 
> 2800 is loose AGAIN.It loosens up from the rotor.The clamp is tight on the 
> mast.It turns true,I have a flat plate on the top with a bearing and the 
> rotor is mounted 10 feet down.I used the supplied 3/8th bolts with the 
> Ny-lock nuts.It had roughly 18 sq feet of windload on it.
>     I like the rotor,its tough.But this is the 3rd time they have loosened 
> up on me.Am I doing something wrong?Should I use some red Lock-tite,try some 
> different bolts/nuts?
>     Anyone using the new MDS rotor boxes yet.I see they are really made for 
> Yaesu rotors.I have a few of them as well.Thought it would be nice to have a 
> digital diplay and computer control at a much more reasonable price then 
> Yaesu charges.Plus the box itself is smaller which is nice when your shack 
> is small and you keep getting more stuff!I think the Green Heron is great 
> but a bit pricey unless your using some of its unique features.
>     Now a math/tower question.Been longer then I care to admit that I've had 
> to use this kind of math so I thought I'd ask here.I'm putting up a small (4 
> times 12 elements) EME array on a short 10 foot tower.The boom lengths are 
> 18 feet.I plan on spacing them 10 feet by 10 feet,I know thats not perfect 
> but it is easy from an assembly point.That means 5 feet above the crossboom 
> and 5 feet below.How high does it need to be off the ground so I can point 
> straight up?Should I make be able to point straight up,is that desirable?It 
> would be easier to mantain the array but is it worth it.Looking for 
> ideas.Thanks for any help!!  Gregg  K9KL 
>
>
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