Be as specific as possible when reporting issues and *ALWAYS* include the full version number of the application you are using and your exact *CAMERA MODEL*
NEVER POST YOUR KEY IN ANY PUBLIC FORUM, INCLUDING THE O'TELESCOPE SUPPORT FORUM ::: IF YOU DO YOUR KEY WILL BE DEACTIVATED WITHOUT NOTICE!
A while ago (February) I said in another post that if I purchased a USB 3.0 hub I would report back how successful it was if I tried running imaging camera, guide camera and mount all via the same hub and laptop USB 3.0 socket. I did buy a hub and as my existing USB 3.0 active extension cable is only 5m long I also bought a new 10m active cable.
The hub I purchased was the Anker AH240 mains powered hub
and initially I purchased this active cable from CSL which I intended connecting in series with my existing cable
When I received the hub and cable I decided to try them out using CrystalDiskMark and a USB 3.0 memory stick to test the ability of the combination. When used individually the CrystalDiskMark results were fine for USB 3.0 performance but when the cable and hub were joined together I got intermittent performance from all 7 ports (tested one at a time). Having spent some time testing the 2 devices together (with and without my existing 5m USB 3.0 active cable) I eventually decided to return the cable and get a replacement.
The replacement cable I got was a 10m cable from Lindy:
I repeated the tests and every time I achieved USB 3.0 performance as indicated by the results in CrystalDiskMark.
I connected all my equipment indoors using the single USB cable and hub and it all looked to work OK.
This Monday night I managed to get out to do some imaging and connected everything using the single USB cable and hub. The system performed without issue (apart from the battery in my camera going flat !) for the whole session of 5 hours plus (had to go to bed at 01:30 as work later that morning). I was guiding throughout most of the session and both cameras and mount remained connected to BYE and PHD without issue.
I also got some pictures of M81 and M82 in the same frame, though poorly framed as I wasn't expecting much due to the fairly poor conditions.
So, the outcome of my experience is:
It is possible to run all the equipment using a single USB 3.0 connection and hub as long as the equipment is mutually compatible and works well together.
My previous USB 2 based set up always required 2 leads to be run out from computer to mount area, otherwise one or other camera became disconnected.
It may not work for everyone as per my first test with the CSL cable as there looked to be an issue between the hub and the cable. No idea which device was to blame it was just easier to swap out the cable.
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