Meade LX200 CLASSIC Manual de usuario descargar pdf (Pagina 7)

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alignment.

Conclusions

Six months ago, successful autoguiding of the

LX200GPS via the RS-232 port was essentially

impossible, having been thwarted by an

uncommanded tracking pause that followed

guiding command sequences (e.g., :Me#

followed by :Qe#). That problem has been

corrected within the last month with the release

of LX200GPS firmware 3.0d. As a result, any

properly-coded and correctly-used software

should be capable of autoguiding LX200GPS

telescopes through the RS-232 port if the

telescope is running firmware 3.0d.

However, the undocumented commands

:Mgdnnnn# have been incorporated into the

LX200GPS firmware since at least version 2.0i.

These commands do not require a subsequent

halt command, and are not followed by a pause

in tracking. Any properly-coded and correctly-

used software that uses the :Mdnnnn# commands

should be capable of autoguiding LX200GPS

telescopes running either firmware version 2.0i

or above.

The :Mgdnnnn# commands have some clear

advantages over the documented move/halt

command sequences, because they eliminate the

possibility of timing errors introduced by serial

communication between computer and telescope.

Therefore, I recommend using autoguiding

software that uses these commands. Steve

Barkes’ GuideDog version 1.06 has already

incorporated these commands, and versions of

other popular applications will do so in the

upcoming weeks and months.

Successful autoguiding the LX200GPS through

the RS-232 port has arrived.

References

Meade Instruments Corporation web site

(http://www.meade.com/index1.html)

Meade Instruments Corporation, 2002. Meade

Telescope Serial Command Protocol Revision L. 9

October 2002.

http://www.meade.com/support/LX200Comman

dSet.pdf

Yahoo discussion groups:

LX200GPS

http://groups.yahoo.com/group/LX200GPS/

Meade Uncensored

http://groups.yahoo.com/group/Meade-Uncens

ored/

ASCOM-Talk

http://groups.yahoo.com/group/ASCOM-Talk/

K3CCDTools

http://groups.yahoo.com/group/K3CCDTools

/

LX200

http://groups.yahoo.com/group/LX200/messa

ges/15063

Barko Software

http://www.barkosoftware.com/

K3's Astronomy Home Page

http://www.pk3.org/Astro/

Dodd, Mike, 2004. Telescope Autoguiding Analysis.

www.mdodd.com

Andrew Johansen’s PEC Editor

http://members.optusnet.com.au/johansea/mysco

pe.zip

Katreniak, Peter, 2004. personal communication.

Barkes, Steve, 2004. personal communication

Dove, Web, 2004. personal communication

George, Tony, 2004. personal communication

Johnson, Daniel, 2004. personal communication

JAT Observatory, 2004. personal communication

Seymour, Dick, 2004. personal communication

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