Quote:
Originally Posted by JohnH
I have identified a minor bug in Guidemaster 2.0 Beta 14 when using the ST4 port on the QHY5 camera, it may impact other setups, I am not sure so I thought I would share in case others see it.
The probelm manifests as sudden large offsets (real) in DEC that are then slowly corrected leaving you with oval stars. The problem can be worked around by turning off the DEC Backlash detection check box in the Setup, Options, Telescope page and then re-calibrating. Of course this means there is no backlash compensation but as I get best results when I guide DEC in one sense only this is not an issue for me.
While on the subject of Guidemaster and the QHY5 type cameras if you use this setup when you first start GM it thinks it is connected both to the camera CMOS chip (it is) and the ST4 port (it isn't but the slew buttons show up anyway). In my experiance the guide signals will not get sent correctly untill you disconnect/reconnect the ST4 connection by unchecking and then re-checking the Telescope connection in the software, I guess this re-sets a port somewhere....You can verify the connection is good by clicking on the NSEW slew buttons.
These two gotchas have cost me a few nights to find but once again GM is working well - love it!
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I have found this also about the connection to the mount. I have found that sometimes is refuses to slew in dec even thought it thinks it is. I was worried that I had a bad connection but when it happened I tried using PHD and the dec movement still worked.
I have also found it better to disable dec backlash detection.
I have fiddled with the setting lots and found that I get the best results with the "adaptive filtering" enabled with blending on about 50 and alpha of 70.
I also found that things improved when I set the guide speed on the mount to 1x rather that 0.5x. Not sure why
