Thanks for the info, Gene. I'll leave that debate to those who know
better than I, but my experience with the same mount was that your
909 gave much better results. It is possible I started using the pulse
commands rather than generic LX200 commands at that time, as I
did upgrade the ASCOM driver around then, so maybe *that* made
the difference..
I might re-create that setup later this year and directly compare the
two methods again, as it would be an interesting exersize.
Apologies for any confusion this may have caused, Renaud, but I fully
agree - *do* try it - only (free) software, a USB>serial adapter and a
serial cable for your 497 (which can easily be made yourself) is needed.

Regards,
--
Rob

________________________________________
From: RoboScope@yahoogroups.com [RoboScope@yahoogroups.com] On Behalf Of
lynol1000 [lynol1000@...]
Sent: 13 July 2009 17:21
To: RoboScope@yahoogroups.com
Subject: [RoboScope] Re: Alternative to the Meade #909 APM

Rob,

There have been some heated debates in other egroups on how well the 497 serial
input works for guiding. Some people swear by it, other at it. I believe
autostaretx will tell you the inputs from the AuxBus from the 909 end up in the
same variables as the serial input. Now how they are used might be different.

Renaud, if your machine has a true serial port, go for it. If not, pick up a
known to work well USB to serial adapter, then go for it!
:-)


The ASCOM platform allows guding with DSI via programs other than Envisage.
Using ASCOM also opens up the 'pulseguide' commands of the 497 (not limited to
lx200 command set) if you use the correct ASCOM driver.

I do not think Envisage uses anthing more than lx200 commands to a 497, which
-is- severly limiting compared with the pusleguide commands.

Gene

--- In RoboScope@yahoogroups.com, "Hemmings, R.K." <rkh@...> wrote:
>
> Hi Renaud,
>
> You can guide using the 497 serial input port at the
> bottom, using a USB>serial adaptor and generic LX200
> guiding commands, if your software supports everything.
> It doesn't work very well though, due to inherent delays.
>
> Gene's Clone 909 is by far the best way to autoguide
> a mount with Meade motors.
>
> Regards,
> --
> Rob (~52N, ~1W)
>
> >-----Original Message-----
> >From: RoboScope@yahoogroups.com [mailto:RoboScope@yahoogroups.com] On
> >Behalf Of renaudvl
> >Sent: 13 July 2009 14:10
> >To: RoboScope@yahoogroups.com
> >Subject: [RoboScope] Re: Alternative to the Meade #909 APM
> >
> >Thanks for sharing this option, looks interesting...
> >
> >Any way of guiding using the Autostar hand controler??? with a DSI and
> >envisage and something USB ???
> >
> >Thanks again
> >
> >Renaud
> >
> >
> >--- In RoboScope@yahoogroups.com, "lynol1000" <lynol1000@> wrote:
> >>
> >> I talked the wife into allowing a 'large restock' to cover the number
> >of on hand PCB's I have of each type.
> >>
> >> Parts now on hand to build:
> >> 16 of the 909 clones that supply guide only
> >> 6 for full featured (Guide/Focus/Reticule) and supporting native USB
> >interface (no ST4 dongle required).
> >> 15 of the PC/MAC USB to ST4 output units.
> >>
> >> Gene
> >> http://home.comcast.net/~lynol1000/as_909/as_909_clone.htm
> >> http://home.comcast.net/~lynol1000/guide_output_web_1/guide_out.htm
> >>
> >> --- In RoboScope@yahoogroups.com, "Andrew" <amessent@> wrote:
> >> >
> >> > Sorry, that wasn't much help, try here for a #909 clone:
> >> > http://home.comcast.net/~lynol1000/as_909/as_909_clone.htm
> >> >
> >> > Andrew
> >> >
> >> > --- In RoboScope@yahoogroups.com, "renaudvl" <renaudvl@> wrote:
> >> > >
> >> > > Hello,
> >> > >
> >> > > I am looking for a way to auto guide my LXD75 mount using the
> >shoestring USB guider port.
> >> > > Is there any other way then using the Meade #909 APM module???
> >> > >
> >> > > Thanks
> >> > >
> >> > > Renaud
> >> > >
> >> >
> >>
> >
> >
> >
> >
> >------------------------------------
> >
> >How to convert your GP-style mount to GOTO:
> >http://groups.yahoo.com/group/RoboScope/files/
> >Yahoo! Groups Links
> >
> >
> >
>




------------------------------------

How to convert your GP-style mount to GOTO:
http://groups.yahoo.com/group/RoboScope/files/
Yahoo! Groups Links



http://docs.yahoo.com/info/terms/