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Re: PHD Guiding on Gemini G11


Jan 4, 2009

 


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

#41055 Jan 4, 2009

First, let me make it clear I am certainly no Gemini expert, having

acquired my G-11 only a few weeks ago. So I would like to hear from more

experienced users as well.



Second, let me see if I understand you correctly. When you use PHD and

you're getting pictures from the Meade LPI, does PHD say it's connected

to the telescope or the camera? I suspect it's the latter.



If you're using TheSky, then you're already communicating with the

Gemini via an RS-232 serial connection. I don't know TheSky well enough

to say with any certainty, but I get the impression it wouldn't share

that serial connection gracefully. The ASCOM platform with the Gemini

driver can be set up to work through TheSky using the ASCOM "TheSky

Controlled Telescope" driver. Instructions for this sort of

configuration can be found at

ascom-standards.org/FAQs/TheSky.htm. The ASCOM driver/TheSky

combination then looks like any other ASCOM driver to other ASCOM

compliant applications and can act as a hub. You should then be able to

select "ASCOM" from PHD's "Mount" menu and then select "The Sky

Controlled Telescope" from the ASCOM chooser that'll pop up when you

click on PHD's little telescope icon. Like I said, I'm no Gemini/TheSky

guru, and I've never tried doing this so I can't say for sure if it'll

work as described. But from what I've read when researching autoguiding

with my new G-11, it sounds like it ought to.



Personally, I like to keep things as simple as possible, and the

GPUSB/PHD/autoguider port solution is about as simple as it gets with a

non-autoguide capable camera. It seems to me that the more layers of

drivers, plugins, and what not you put between your guiding camera and

the mount it's trying to control, the greater the chance for errors and

unpredictable behavior. At least that's my story, and I'm sticking with

it... ;-)



Regards,

Bert



alexmcconahay wrote: >

> I'm intending to use an old Meade LPI. I get the picture on PHD

> guiding, and the software says it is connected to the scope. So, it

> looks like it should work, although I have not tried it at night

> yet. (Waiting for it to clear up).

>

> The LPI does not have an autoguide output, so I cannot adopt your

> method wholesale.

>

> And, while I do not mind buying a GPUSB--no use spending the $75 if

> I can do it with what I already have!

>

> Thanks for the input, though.

>

> Anybode else have ideas/advice?

>

> Alex

>



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

#42799 May 11, 2009

Hi



I've purchased a new G11 and found this thread regarding autoguiding using PHD.

Currently I use the EQDIR module which has the RS232 interface on one end and usb on the other.This is what I used with my previous EQ6

PC -> serial cable -> EQDIR -> serial cable



Does anyone know if this will work

Thanks



Troy --- In Losmandy_users@yahoogroups.com, Bert Seltzer bert.seltzer@...> wrote:

>

> First, let me make it clear I am certainly no Gemini expert, having

> acquired my G-11 only a few weeks ago. So I would like to hear from more

> experienced users as well.

>

> Second, let me see if I understand you correctly. When you use PHD and

> you're getting pictures from the Meade LPI, does PHD say it's connected

> to the telescope or the camera? I suspect it's the latter.

>

> If you're using TheSky, then you're already communicating with the

> Gemini via an RS-232 serial connection. I don't know TheSky well enough

> to say with any certainty, but I get the impression it wouldn't share

> that serial connection gracefully. The ASCOM platform with the Gemini

> driver can be set up to work through TheSky using the ASCOM "TheSky

> Controlled Telescope" driver. Instructions for this sort of

> configuration can be found at

> ascom-standards.org/FAQs/TheSky.htm. The ASCOM driver/TheSky

> combination then looks like any other ASCOM driver to other ASCOM

> compliant applications and can act as a hub. You should then be able to

> select "ASCOM" from PHD's "Mount" menu and then select "The Sky

> Controlled Telescope" from the ASCOM chooser that'll pop up when you

> click on PHD's little telescope icon. Like I said, I'm no Gemini/TheSky

> guru, and I've never tried doing this so I can't say for sure if it'll

> work as described. But from what I've read when researching autoguiding

> with my new G-11, it sounds like it ought to.

>

> Personally, I like to keep things as simple as possible, and the

> GPUSB/PHD/autoguider port solution is about as simple as it gets with a

> non-autoguide capable camera. It seems to me that the more layers of

> drivers, plugins, and what not you put between your guiding camera and

> the mount it's trying to control, the greater the chance for errors and

> unpredictable behavior. At least that's my story, and I'm sticking with

> it... ;-)

>

> Regards,

> Bert

>

> alexmcconahay wrote:

> >

> > I'm intending to use an old Meade LPI. I get the picture on PHD

> > guiding, and the software says it is connected to the scope. So, it

> > looks like it should work, although I have not tried it at night

> > yet. (Waiting for it to clear up).

> >

> > The LPI does not have an autoguide output, so I cannot adopt your

> > method wholesale.

> >

> > And, while I do not mind buying a GPUSB--no use spending the $75 if

> > I can do it with what I already have!

> >

> > Thanks for the input, though.

> >

> > Anybode else have ideas/advice?

> >

> > Alex

> >

>







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