Okay, that sounds familiar, John. It had pots that may have been belt driven that increased or decreased the resistance depending on rotation.
Something else I remember - the person put a plastic garbage can over it to keep out the rain. I know why he did that. I just find it amusing that I remember that detail.
Let me ask one other question before I get to comments. I actually have one U-100 and one U-110. Is this going to be an issue? I'm not sure what the difference is.
@AA5AM: Don't put too much into it. I thought someone might remember it off the top of their head. There are several solutions that I got that may be better than what I was looking for.
@KL7XJ: I vaguely remember the SatEL being advertised in the Journal. I think it is time to renew my AMSAT membership and maybe purchase those DVD's.
@VK4HHH: I have looked at K8DAV's setup quite a bit. I got myself confused thinking it only worked over a parallel port (that is an issue but can be overcome unless portable/field). However, I realized the basic stamp controller worked over a serial port (not an issue). I may go this route, but I'm still looking for options. Will this setup work using SatPC32 which was my preferred tracking software when I was satellite active?
@KO6TH: I like your approach. Let me see if I got my head wrapped around your design - serial interface to the FODtrack board which then controlled your controller? That's pretty cool.
@VU2POP: Very nice homebrew tower and rotor setup.
Still working out my options. I just want something simple that I can take to the field using a modern laptop.
Lot's of good suggestions here.
Downloaded the form to renew my AMSAT membership too.
73, Joel - W4JBB
On 7/3/2012 5:09 AM, John / NS1Z wrote:
I think you are referring to the satellite compendium put out many years ago. Ii am sure it is out of print now. Over the years I built a couple and one even auto track (but a LOT of work)
-----Original Message----- From: Joel Black Sent: Monday, July 02, 2012 6:09 PM To: AMSAT Subject: [amsat-bb] U-110 Rotor Setup
I am looking for an old article regarding the use of two U-110 rotors for satellite operations.
I have gone through all my old references and cannot find what I'm looking for.
Basically, it was a setup using two U-110's (or it could have been two U-100's). The homemade controller used either toggle or rocker switches and had a digital readout of AZ/EL using DVOM's. As far as I remember, it was all manual. I remember seeing this in the back of some publication, but I cannot find it.
Does anyone have any inkling of and idea what I'm talking about?
73, Joel - W4JBB _______________________________________________ Sent via [email protected]. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb