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Old 04-01-2016, 04:47 PM
Nortilus (Josh)
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QHY5 dropping out?

Hi,
I've just been most graciously been gifted a Starlight Xpress SVXR-H9C Cooled CCD and I am now running into an issue with my QHY5 guide camera.

I am running a single USB cable from a USB2 port on my laptop to a powered USB2 hub. Now when I try to connect the QHY5 up to the laptop it sometimes doesn't get recognised or drops out once it is initialised in PHD.

I have 2 theories but if any other ideas can be presented it would be great.

Theory 1 - The usb cable is dodgy and i need to get a new one.

Theory 2 - That there is not enough USB data bandwidth to keep both cameras and the EQdirect cable running.

Ultimately I would like to keep it as one cable from the laptop to the USB2 hub but I did get it all working with running the QHY5 to its own usb port on the laptop.
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Old 04-01-2016, 07:47 PM
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doppler (Rick)
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Hi Josh
Theory three would be the usb hub is getting overloaded, which of course is theory 2 as you are still only using one usb2 port on the laptop.

Last edited by doppler; 04-01-2016 at 10:56 PM.
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Old 05-01-2016, 08:33 AM
Nortilus (Josh)
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I have a feeling it might be that. But i have had an 1100D and the QHY5 on there before with no dramas with the 1100D sending live data back to the PC.

Well I have a DMK21au618 on the way now so that will replace the QHY5.
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