[Moon-net] actuator read out

[Luis Cupido]

Hi Erwin,

Depending on the precision you want
you may disregard or not the axis offset
of the both actuator and support point.
(both have an impact on the equations used)
If one wants to get it precise to the 0.1deg or less
need to consider this, and it will no longer
be a simple 2*sin(x/2).

If the antenna bw is a few degrees wide you can
keep it simple and disregard this.

Luis Cupido.
ct1dmk.


P.S. I can send you the complete set of equations
if you like.


F1TE wrote:
> Hello,
> 
> I use a Jack for drive elevation of my EME antennas whose movement is 
> linearized by a correction  table in a PIC µcontroler.
> Here the description of my tracker.
> http://www.f1te.org/Tracker/trackeur_gb.htm
> 
> F6BKI  use this tracker, and also Peter OZ1LPR.
> 
> 73, Lucien F1TE
> ----- Original Message ----- 
> From: "Erwin Witt" <erwin at dk5ew.de>
> To: "Moonnet" <moon-net at list-serv.davidv.net>
> Sent: Tuesday, September 18, 2007 7:53 AM
> Subject: [Moon-net] actuator read out
> 
> 
>> Hi all,
>>
>> a friend of me is planing to setup a EME rig. He will use a actuator for
>> elevation.
>>
>> I was searching Ham sites and internet but I didn't find any homemade
>> controller for a actuator.
>>
>> Does anybody can provide a link for a elevation control ?
>>
>> vy 73's de Erwin/DK5EW
>>
>> Homepage: http://www.dk5ew.de
>> Member of MMMonVHF-Team: http://www.mmmonvhf.de
>>
>>
>>
>>
>>
>>
>>
>> _______________________________________________
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>>
> 
> 
> _______________________________________________
> Moon-Net posting and subscription instructions are at http://www.nlsa.com/nets/moon-net-help.html
> 
>