QHY-174M GPS Freezes at Random Times

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QHY-174M GPS Freezes at Random Times

Post by denisgre » Sun Jun 30, 2019 4:42 am

Hi there,

First post on the forums. I have a QHY-174M GPS that I've obtained for occultation work and testing it tonight I've been noting that it seems to freeze at random points and requires a reset to continue operations.

The problem occurs in either preview or capture mode - things seem to be going along fine and then the program freezes. The program hasn't crashed as I'm still able to reset the camera.

Running short cable through a powered hub - Windows 7 and USB 3.0 hub.

Running EQMOD mount.

Thanks for any assistance.


Denis Grey

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Re: QHY-174M GPS Freezes at Random Times

Post by admin » Sun Jun 30, 2019 10:09 pm


Please have a look at the link at the top of this page in the orange box about troubleshooting USB issues. USB hubs can often cause the sort of problem you are describing, so the first thing to do be to get back to the simplest possible set up (computer-> cable-> camera) and see if that can be made to work robustly. Once you have a simple setup working robustly, you can experiment reintroducing hubs or longer cables, possibly adjusting the USB speed setting to try and get a working configuration with a longer cable run if necessary.

Cheers, Robin

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