Sorry, a senior moment. -Larry

Ray, I tried three more times as instructed - the same error message appears. I'll call next week. Happy Thanksgiving. David Burrell

There's one other thing you can test disable dithering and take a few images, but leave everything else the same (i.e., continue guiding during download). If the issue persists, you know it's

Hi David, I think maybe you are using the wrong term. There's nothing to download. The Eltima virtual port driver will be installed and the Eltima ActiveX control registered. Did you reboot the

Ray, The virtual ports cannot be created. I get the ".....AxHost+invalid ActiveXStatexception...." message. So, I'm assuming that the Eltima software did not download? David Burrell

Mounts will be instructed to move by two different methods. One is by coordinate moves, the other is by timed move where a 1 second move command corresponds to a 15 arc sec move. Coordinate moves are

A dither move is normally the same as a guide move command, except typically bigger. If the mount guides normally and properly, then it is responding to the PHD external commands in the proper manner.

You might try pausing guiding during download and see if that helps. -- Brian Brian Valente portfolio brianvalentephotography.com

Download takes 10-20s. Yes, guiding is still on during download, but not during auto focus.

Regarding your image download when exposure complete, are you still guiding while image is downloading? Does download take a while?-- Brian Brian Valente portfolio brianvalentephotography.com

Yes, exposure time was 900s.

Are you doing 15 minute exposures? The dither distances and settling look fine from a PHD perspective, although I can see a big spike in guidestar SNR roughly every 900 seconds -- Brian Brian

I also posted the same question on PHD2 forum.

Since both SGP and PHD2 have been used by many customers, I am looking for suggestion on Mach2 mount debug.

Here is the log: https://openphdguiding.org/logs/dl/PHD2_logs_xGZF.zip I have not used the log before but I think this is the dither causing issue. I then restarted the sequence by turning dither

Hi Jerome, They can be two separate connections to the telescope - one from ACP and the other from MaximDL. In your script, I see that ACP is disconnecting from the telescope, but I do not see a call

You will need to look at your PHD log file to see what PHD is sending to the mount. I assume your dither is set to move the mount at 1x sidereal for a fraction of a second, is that correct? If you are

Beautiful! Well done Rolando!! JimP Get Outlook for iOS

Hi yanzhe liu Your question is probably better answered in the PHD user forums, but either way, you will need to upload your guidelogs https://openphdguiding.org/getting-help/ Brian -- Brian Brian

Ray I am still confused since that call is right at the top of the Shutdown Script. I changed the order of the shutdown so that the last thing powered off is the mount and I still have the driver