PHD2 is telling me that my CGEM I mount is not responding to declination pulses. I am definitely not getting good guiding. The star cross test does not produce a cross, just a straight line. I have tried some manual guiding as PHD2 suggests. It seems like it is inconsistent. Sometimes it responds, sometimes not. The attached photo is part of a star test image.
I also notice that when I watch the eyepiece, moving in either RA direction is pretty smooth. In the down declination direction, the star moves for a bit and then stalls briefly, and then starts moving again. Up declination seems smooth. I'm not sure what that means. I don't feel like I have a big backlash problem.
The mount is carrying a C9.25 and 70mm guidescope. I'm not using a ST-4 cable.
I'm not sure where to go at this point. I've been thinking of doing a Hypertune on this mount. Would that help?
Edited by David Moulton, 22 August 2019 - 05:59 PM.