[TowerTalk] rotor comparisions

Craig Miller dcm at stanford.edu
Thu Mar 25 17:37:57 EST 2004


Greg,

In terms of brute strength, quality of worksmanship, and dedicated 
customer support from Wyatt Lyzenga and colleagues in Fresno, I 
don't think you can beat the M^2 Orion OR2800 PDC rotator based on 
my experience with one swinging a KLM 40M3, KLM KT34XA, and 
KLM 2M13 in Northern California winds.  Appears it could turn a 
house without breaking a sweat, as I have siad before, and great 
attention from the folks at M^2.

Craig
WA6OXK
  

Date sent:      	Thu, 25 Mar 2004 19:25:25 -0600
From:           	Gregg Seidl <k9kl at direcway.com>
To:             	TowerTalk at contesting.com
Subject:        	[TowerTalk] rotor comparisions

> Which is better and why?M2 2800 or whatever they call it
> now,Prosisteil PST-61 or Hy-Gain HDR-300.Looking for a stout rotor to
> turn some big stacks of uhf beams in a high wind area.I have a PST-51
> up there now but I keep shearing off the "pin" bolt and I don't want
> to put a bigger one in and then break the rotor.Plus I think the bolts
> that hold the rotor plate to the rotor are getting stretched which
> means it can turn 20 dergrees or so back and forth and then that puts
> a lot of torque on the "pin" bolt and then ping it breaks.The "pin"
> bolt is grade 5 3/8*4 with a grade 5 cap screw.It does indeed break as
> to just getting lose and then fall off.  Gregg  K9KL
> 
> 
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> 
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