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Re: Rotators




Those  U-100 rotors are available around at the swap meets.  
And cheap, too.   I have set up an  AZ-EL  rotor with two U-100's
and it works swell. It's been up for about 10 years or more with two
fairly big  (14 elements on 2,  20 elements on 432)   antennas. 

73
John K6YK

On Mon, 10 Sep 2007 15:06:17 -0700 Don Fanning <don@00100100.net> writes:
> 
> I'm actually experimenting with using a toy computerized telescope 
> right 
> now (Meade ETX-60).  It has a computerized alt-az setup but the 
> onboard 
> electronics allows for updating keps to "observe" satellites as well 
> as 
> provides a RS-232 interface to a computer (haven't gotten around to 
> 
> building the cable yet) but the mount is plenty strong enough.  I've 
> 
> raised the base of it (contains the az motors, electronics and 
> batteries) up while holding the tube upright and working the 
> handpaddle.  The base along weighs 3-5 pounds and it did it without 
> even 
> a groan. 
> 
> My idea is to attach an arrow onto it and maybe a counterweight to 
> balance things up.  It has no problem slewing or precision tracking, 
> 
> it's lightweight and portable (more portable than a G-5400 and 
> tackle) 
> and can track satellites portably without the need of a laptop.  
> Beats 
> hand tracking. :)
> 
> de Don (KL7EET)
> 
> David Donaldson wrote:
> > Let me join the question...The Yaesu are great rotors but are 
> there any
> > options anymore that don't cost the price of a new rig?  I wish 
> now I had
> > not sold my Allient (spelling not right) U-100 TV rotor a few 
> years ago now
> > that I want to get back into satellites.
> >
> > Dave WB7DRU, MN
> >
> > -----Original Message-----
> > From: amsat-bb-bounces@amsat.org 
> [mailto:amsat-bb-bounces@amsat.org] On
> > Behalf Of Thomas M. Webb
> > Sent: Sunday, September 09, 2007 8:59 PM
> > To: Eric Christensen; AMSAT-BB
> > Subject: [amsat-bb] Re: Rotators
> >
> > The Yaesu 5X00 series (5400, 5500, 5600).  They are in general use 
> in the 
> > AMSAT community so there is lots of support.
> >
> > Tom, WA9AFM/5
> > ----- Original Message ----- 
> > From: "Eric Christensen" <eric@christensenplace.us>
> > To: "AMSAT-BB" <amsat-bb@amsat.org>
> > Sent: Sunday, September 09, 2007 7:57 PM
> > Subject: [amsat-bb] Rotators
> >
> >
> >   
> >> I know this is a general question but I'm hoping to get some 
> insight.
> >>
> >> What's the best azimuth and elevation rotator available these 
> days?  I'm
> >> hoping to get some antennas up before the end of the year and 
> this is
> >> one of the pieces of the puzzle I don't have any idea about.  
> Any
> >> information would be appreciated.
> >>
> >> 73s,
> >> Eric Christensen, W4OTN
> >> AMSAT Area Coordinator - Southeastern Virginia USA
> >> AMSAT Member 35360
> >> http://www.ericsatcom.net
> >>
> >> Donate to the Eagle Fund - 
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> B685 F578
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> 
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> 
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