Idle question: Whatever happened to the 3600GTO “El Capitan" mount? Looking at photos of it on its massive portable pier, carrying a PlaneWzve 24”, I realized it’s the ideal solution to my

Last night I turned off guiding during download and it worked. I will test more in the next few days. Thanks everyone for the help.

Autofocus can shift the camera which will cause the star to jump. Try turning off Autofocus and see if you still get the jump. Rolando

Hi David, The exact cause for the issue on a few computers is not known, but I think the problem is likely a missing Windows DLL in Windows 10. The fact that virtual ports were working for you in

I got the CD player mainly to copy my CD collection into iTunes so that I could load then onto my iPod. Over the years I have accumulated quite a large collection of CDs, mostly in the pop and rock

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