Posted 06 October 2013 - 02:35 PM
Posted 07 October 2013 - 10:25 PM
Have you contacted them?
What is the exposure duration of your guide camera set to in PHD?
try 2 or 3 seconds?
Is it the same in all quadrants of the sky?
how many steps does PHD take to calibrate?
If your Dec graph is good then it's likely not a polar alignment issue.
Is the mount over correcting or is it not responding in a timely manor?(meaning is it continuing to track off target even though PHD is telling it to move the other way? )
a screen shot with the PHD settings would certainly help get reasoned responses...
It's possible that the worm adjustment is too tight or too loose. it doesn't take much adjustment to be too loose or tight
Posted 08 October 2013 - 07:49 AM
Also - how many steps is PHD taking in the RA and DEC to calibrate for you? A ballpark is to try and get the numbers in the 'brain' adjusted to where it is taking 12 or less steps to 'calibrate' - these can be watched in the very lowest PHD screen as it goes through the calibration process.
Posted 08 October 2013 - 08:38 AM
East-West = Periodic Error
North-South = Declination Error
Some Combo = Either a combination of the above or flexure somewhere in the system.
Posted 08 October 2013 - 02:54 PM
Posted 08 October 2013 - 03:27 PM
Posted 08 October 2013 - 03:40 PM
Posted 08 October 2013 - 03:44 PM
What are the rest of your settings for PHD? My guess is that you're overly aggressive or not correcting enough. As it rocks back and forth, you're getting trailing... really not that surprising with new guys. Have you read this article?
It really helps to understand what PHD is doing...
Posted 08 October 2013 - 04:27 PM
Posted 08 October 2013 - 09:26 PM
That last symptom description - sending to Ed sounds like a good idea, top man and we're lucky to have him !
Posted 09 October 2013 - 07:52 PM