Ascom driver problem during connection phd

I want to try it through the mount directly to see if I get better results. Thank you! Andy Galasso. Good luck, Bruce. Hi Alex - I may be misunderstanding your problem and don't know whether this helps. The Celestron ASCOM driver has a tick box to "Show all ports" which does as the name suggests you can then select the port from the drop down for your particular mount.

It's usually one of the higher numbered ones. You can find your port number from Device Manager if your using Windows. Hello, this issue is not properly related to phD2, however I hope that someone could give me some hints. I tried to use another computer, but I get the same error this time is on COM 6, the port assigned by the second computer.

Therefore my conclusion is that this is not linked to the computer same error on two different computers! As said, this error sometimes disappears when I connect again, more often it does not and I have to use the ST David Kerber. I am unsure if it would work in the aux plug on the mount.

Good luck! I have the best wife ever! Sounds like the Celestron manual will tell you how to connect things properly… Bruce. But couldn't I just run into the guide port on the mount? I don't know how these things work Got some nice pics of Andromeda, M42 etc but thought the guiding could give me longer exposures for the smaller- fainter DSO's.

The guide port on the mount is for direct connection to the guide camera. If your guide camera has a guide output port connection.

I would recommend using that to connect to the mount at it's guider port. PHD2 then connects to the mount through the camera. If your guide camera does not have a guider output port. Hope this helps. Bret McKee. Depending on which Celestron mount you have, you have different options on how to make the ASCOM connection to the mount. For all of them, you can make it to the jack on the bottom of the hand controller. Some of them also have ports labeled "PC" which you can plug directly into, bypassing the hand controller and allowing you to run the NexRemote software, completely eliminating the need for the hand controller.

And some have "Aux ports", which are TTL level serial ports. If you don't know that that means, you should not use them :- Celestron used to make an converter that converted an AUX port into a PC port, but it has been discontinuted and is now a hot item when it turns up on Astromart.

When I had a permanent setup, I used NexRemote and the PC port, and when portable I used the hand controller and the port on its bottom. I downloaded the ASCOM driver and then it still wouldn't connect because it couldn't find serial port. I couldn't figure out how to make the "through-the-camera" to the mount work. Oh man! I should learn to read! I just did that and PHD2 says it is now connected to the mount through the camera.

One more thing When you are using the through-the-camera connection, Choose your camera and connect first. Then, if you have the "On-camera" selected for the mount, it will allow you to connect to the mount. In other words, you have to be connected to the camera before you can connect to the mount. Otherwise, the performance numbers may not reflect your actual results and the baseline guiding parameters may be sub-optimal.

Mount connection pane: mount guide speed. This is another area that seems to cause confusion. The guide speed is a parameter set in the mount or in the mount driver , it's not something controlled by PHD2.

PHD2 never sets the mount guide speed, it only reads it. It is usually expressed as a multiple of the sidereal rate and is typically in the range of 0.

Despite what you may read elsewhere, it's usually best to use guide speeds in this range rather than much lower speeds. Higher guide speeds can help to clear backlash more quickly and may help to overcome stiction problems. If you say 'yes' to the connection option prompt, PHD2 will attempt to read the current guide speed from the mount.

If this fails for some reason, you'll need to enter the guide speed manually. PHD2 uses this value to automatically set the calibration step-size and to aid in checking calibration results; but the guide speed information is not important for the actual guiding.