Firmware Versions on the CGEM/CGEM DX Series
Non-English Hand Control Owners - read
this. The
information below is for English-version hand controls. |
CGEM scopes have two sets of processors. There are processors in the hand
control (HC) and there are processors in the base of the scope in a section
known as the motor control (MC).
There have been two versions of hand control available for the CGEM/CGEM DX:
- Hand control version 4.X. This hand control can be updated by the
owner. Read
this
for step by step instructions on upgrading the firmware.
- The NexStar+ hand control. This hand control can be updated by the
owner and began shipping with new CGEM/CGEM DX scopes in January 2012.
It is also available for purchase since February 2012. Read
this
for info on this new hand control and
this
for step by step instructions on upgrading the firmware.
NexStar+ Hand Control
Celestron has posted an official page detailing all firmware versions
for the NexStar+ hand control:
https://www.celestron.com/pages/firmware-update-history
Check back periodically for updates or click the link to sign up for
notifications.
Version 4 Hand Control (firmware files are named GEM)
- 4.22 - Fixes the date when the scope is used with a GPS receiver that
returns a date 20 years in the past.
- 4.21 - Fixed bugs related to tandem operation (OTA orientation), Meridian
Mode and land objects.
- 4.20 - Fixed a problem with a runaway slow slew if a GoTo is too near the
meridian flip point. No Response errors now give a "Press UNDO to
continue" option. For mounts with a GPS module in use, changed the
messages displayed to clarify when the GPS was still attempting a link and
when it was successful. Fixed and error when syncing on stars in
southern hemisphere via the RS-232 sync command (for example, from a
planetarium program running on a laptop).
- 4.19 - Adjust communication protocol to assist MCupdate. Added
"Custom Rate 9": the ability to set the maximum slew rate during a GoTo
(requires MC version 6.12 or higher). Fixed an error in the GoTo
RA-Dec menu item. Hand Control now reports immediately if the are
communication ("No Response") difficulties at start up.
- 4.16 - Corrects alignment system errors for use in the Southern
Hemisphere. Fixed error when using SAO stars (selected from the STAR
button) as alignment objects.
- 4.15 - Original version for the CGEM Series. This version is
largely unusable in the Southern Hemisphere.
MC Versions
- 6.51 - Fixed a bug introduced in 6.50 that broke PECTool. Fixed a
bug where the final approach didn't finish and the mount slewed past target.
- 6.50 - Improves guiding in Declination solving problems caused by
mechanical backlash and motor cogging. Improved anti-backlash
compensation. Numerous improvements matching those found in the AVX
mount.
- 6.17 - First version supporting the CGEM DX mount. Re-tuned motor
control feedback loop and adjusted motor acceleration to better handle heavy
payloads. Fixed problem with sudden motor deceleration for high values
of "Custom Rate 9". The final GoTo approach is now faster and
quieter. Fixed error in GoTos near celestial equator.
- 6.12 - Support for "Custom Rate 9" (introduced in HC version 4.19 - see
above). Added new "Aux" command to support better autoguiding via
RS-232 communication via the port on the bottom of the hand control.
Fixed an error that prevented some user settings from being restored when
the scope is powered up.
- 6.08 - Corrects errors with recording PEC and with GoTo accuracy after
canceling PEC training or using PECTool.
- 6.06 - Original version on the CGEM Series.
Determining Versions
Use the Version option on the Utility menu.
|