AstroG

Hey! I had so many problems with this camera and to be honest it's not even that good. My unmodded 1000d dslr outperforms it. You have to download and install the legacy drivers. You also have to install the second last legacy driver as I have trouble getting images In colour. Also install the USB 1.1 and 2.0 drivers. You'll find it only works on ascom  and it refreshes once every 10 seconds or so , so focusing is very difficult. 

This will also fix similar issues with phd2 st4 guiding errors such as no drift.

So it turns out bad firmware on the motor control unit was the issue.  You need an eq mod cable and the latest firmware from sky-watcher. 2.07 currently. Now the mount is working with the synguider !

Solved !!!!!!!!!

This will also fix similar issues with phd2 st4 guiding errors such as no drift.

So it turns out bad firmware on the motor control unit was the issue.  You need an eq mod cable and the latest firmware from sky-watcher. 2.07 currently. Now the mount is working with the synguider !

I managed to figure out the problem . Both ra+ and ra- move the scope in the same direction at 1 second forward in time ( basically I hear the ra motor stop as autoguide is set fo 1x) so it means either

1 the unit ( nexguide) is faulty or

2 ( more worryingly ) I have a fault in my autoguide socket on the mount 

No 2 causes a problem if I ever was to use eq mod  for pulse guiding . At the moment I'm using the serial port on the hand control for pulse guiding in phd2 .  

For anyone that's interested I used the location coordinates on the hand control the see the commands the guider was giving during calibration. 

Is there a way to check  the st4 port ? Is there a hand control that can be bought separately for it ?

Also if the mount's autoguide port  is set to 0.75 does that mean for ra+ and ra- commands ?

I think I've solved it ! I'm pretty sure my st4 pin layout doesn't match  doesn't match the pin out of the eq5 pro st4 port . Can anyone supply the st4 port wiring diagram ?

I also have this problem ! Did you ever find a solution?

Thank you so much ! That was a lot of useful info and yes it's possible some of the connectors need cleaned . I can guide in phd2 so I sort of have an idea of what I'm doing.  Just for fun I actually put the synguider 2 firmware on it to ( the unit is the same one sold by both companies ) and it boots as synguider 2 version 1.2 now . No difference except the background is black and the stars I assume will be white . Hopefully the clouds go away tonight !

I had a quick look . The st4 port is on the motor control box  and accepts st4 input . I think the star may be too bright and its calibrating  in the wrong direction . It may also be faulty !

Hi there no it's not using phd2 - it's a standalone autoguider called celestron nexguide . It has a black and white screen like on the old Nokia phones and I placed the guide star dead centre. 

Hello! This is my first post . I joined due to an annoying problem with my  celestron nexguide. I can find a star and lock it but when it comes to guiding it does an auto cal  and says m west ra+ on  tmr 23.0 dx-2 dy 11  moves the star in a given direction and then it says m west mov back . The problem is it then moves the star in the same direction until the star is pushed off the screen with the dreaded star lost message.  It says centre during the preview screen for ages  and polar align seems spot on . I set the guide speed through synscan to 0.5 . It's not a hot pixel as I can focus the star. I am using an eq5 pro mount with celestron 70mm travel scope. Any ideas ? I thought maybe there's a setting in the mount I'm missing.