On Sunday, May 03, 1998 11:29 AM, Ric L Ecker wrote:
>
> >Membrane pads do not always engage instantly and may hinder
> >optimal smart drive recording. I use a thin guiding keypad of my
> >design mounted on the hand control which requires only a few
> >ounces of pressure to activate the relays. Others can make or
> >purchase a guiding port hand control for this purpose.
>
> Michael,
> Could you give us your design of this keypad and how it plugs into the
> control panel (CCD port ??) I would like to make one. Will the
> Celestron keypad work on the LX-200 ??? Thanks for the help.

A Celestron keypad will most likely work on the LX-200. I have
used an Ultima keypad on my LX-200 as well as plugging the 201 XT
directly into the Ultima mount (after careful measurements of currents
and polarities) for autoguiding. The Celestron Ultima 8 and 11 inch
keypad input is roughly equivalent to LX-200 CCD guider port except
the processor interprets pressing both the E & W or N & S keys
and speeds up the motors. Both use the same low current phone
plug and jack without wiring modification.



> ric
> curator of the Willard Observatory
> San Marcos, California
> 216 xt images at:
> http://members.aol.com/rlecker/optas.html
>
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--
Michael Hart
Husen Observatory

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