CPC on a Wedge - Hand Controller Guide Rate?
Posted 20 June 2013 - 09:51 AM
I know during calibration the software will compute the number of pixels moved by a fixed duration correction pulse. So, after calibration, for an equal move/correction requirement the software will send a longer correction pulse to move the mount if a lower % guide rate were in use than if a higher guide rate % were in use.
By my simple mind, I would think that if you had 50% set as guide rate vs 100% guide rate the guiding software would simply compute/calibrate it needed to send a correction pulse twice as long to make the same correction than if 100% were in use. Yes/No?
Assuming all things being equal (polar alignment accuracy, guiding software, scope, etc), are there any advantages/disadvantages of 25 vs 75 vs 99 vs or any other percent set in the hand controller?
Is poor/unstable) seeing (vs good/stable) a contributing factor in determining the Guide Rate set in the hand controller?
Posted 21 June 2013 - 12:10 AM
Posted 21 June 2013 - 04:31 AM
To add to the fun the CGEM, CGE Pro and AVX have a guide command built in and this will accept any rate so uses the same rate as that set for the hardware guide port.
Backlash should not be an issue unless the motor needs to run backwards in Ra which it doesn't. It will affect Dec movement, regardless of the guide speed.
You can try all this by setting the HC to rate 2 and seeing how the mount responds to HC button presses.
Posted 21 June 2013 - 05:49 PM
However, I connect to the autoguide port via a cable from the autoguider cam - I do not use an ASCOM guider driver.