New method of controlling imaging gear
New method of controlling imaging gear
I had a chance to try out a new method of controlling my imaging gear and it went well enough that I thought I'd share it in case any of you dome-building guys or imagers might find it useful.
Up until now, my routine has been to carry my laptop out to the scope and hook it up to the power supply and the USB hub connected to all the gear. The laptop outdoors is in range of my home WiFi network, so I can go back inside the house and use another PC indoors to remote-control the laptop (using VNC.)
This has been very convenient, but not ideal. For monitoring the PHD graph and other things, it is fine. But the wifi signal outdoors at the scope is not very strong and sometimes the connection drops. The remote control program shows the remote machine at a lower resolution and lower color depth, so I can't really see the quality of the subs.
So here's the improvement: I picked up a pair of these gadgets: and 100ft Cat5e ethernet cable. I had heard good things about these particular USB extenders in the past, but the list price was way too expensive to justify trying them. Then I found a someone selling them on eBay for well under the list price, so I had to give it a try.
The pair of units arrived yesterday so I set them up and tested them out. I leave the "REX" unit at the scope connected to the USB hub with all the gear. The laptop stays indoors, connected to the "LEX" unit. The LEX/REX units are connected to each other by the long ethernet cable.
From the imaging software point of view, it's exactly the same as if the laptop were outdoors. But now I have the laptop indoors with me. No more remote control, WiFi connection drops, or toting the laptop back and forth.
I did two nights of testing with guiding, running the imaging camera and focuser and everything seems to work ok. These were not real imaging sessions (cloudy skies) but I had no problems so it is looking like this may have been a worthwhile investment.
Up until now, my routine has been to carry my laptop out to the scope and hook it up to the power supply and the USB hub connected to all the gear. The laptop outdoors is in range of my home WiFi network, so I can go back inside the house and use another PC indoors to remote-control the laptop (using VNC.)
This has been very convenient, but not ideal. For monitoring the PHD graph and other things, it is fine. But the wifi signal outdoors at the scope is not very strong and sometimes the connection drops. The remote control program shows the remote machine at a lower resolution and lower color depth, so I can't really see the quality of the subs.
So here's the improvement: I picked up a pair of these gadgets: and 100ft Cat5e ethernet cable. I had heard good things about these particular USB extenders in the past, but the list price was way too expensive to justify trying them. Then I found a someone selling them on eBay for well under the list price, so I had to give it a try.
The pair of units arrived yesterday so I set them up and tested them out. I leave the "REX" unit at the scope connected to the USB hub with all the gear. The laptop stays indoors, connected to the "LEX" unit. The LEX/REX units are connected to each other by the long ethernet cable.
From the imaging software point of view, it's exactly the same as if the laptop were outdoors. But now I have the laptop indoors with me. No more remote control, WiFi connection drops, or toting the laptop back and forth.
I did two nights of testing with guiding, running the imaging camera and focuser and everything seems to work ok. These were not real imaging sessions (cloudy skies) but I had no problems so it is looking like this may have been a worthwhile investment.
Andy
Re: New method of controlling imaging gear
Hey Andy, that sounds like a very reliable system. Also in the cold winter weather, you won't have to go out to the scope to do any viewing, and sit inside nice and warm and comfortable. That takes all the FUN out of being and amature astronomer!!
Orion ED80T CF #9534 Carbon Fiber
Ioptron IEQ 45 Pro mount
Ioptron tripier
Ioptron eq 25 mount
Ioptron tripod
Celestron #93709 next image solar system imager
Unitron 3 inch equatorial mount W/ tracking motor and tripod
Restored ED 102 Vixen ss Doublet
"Ilagitami non carborundum" Uncle Nick '49
Ioptron IEQ 45 Pro mount
Ioptron tripier
Ioptron eq 25 mount
Ioptron tripod
Celestron #93709 next image solar system imager
Unitron 3 inch equatorial mount W/ tracking motor and tripod
Restored ED 102 Vixen ss Doublet
"Ilagitami non carborundum" Uncle Nick '49
Re: New method of controlling imaging gear
Hey Andy, Thanks for the info. I didn't know about this, and Jerry's right on with the cold weather. I usually put the laptop on a heater pad in my enclosure, but going back and forth can be a pain.
I see there are two left. By the time I hem and haw over this, they will probably be sold.
Tom
I see there are two left. By the time I hem and haw over this, they will probably be sold.
Tom
Tom H
"Science knows no country, because knowledge belongs to humanity, and is the torch which illuminates the world. Science is the highest personification of the nation because that nation will remain the first which carries the furthest the works of thought and intelligence." - Louis Pasteur
"Science knows no country, because knowledge belongs to humanity, and is the torch which illuminates the world. Science is the highest personification of the nation because that nation will remain the first which carries the furthest the works of thought and intelligence." - Louis Pasteur
Re: New method of controlling imaging gear
I heard he actually has more but is only showing the number remaining as 1. There was supposedly only one remaining when I bought mine. Marketing ploy?NGC7000 wrote: I see there are two left. By the time I hem and haw over this, they will probably be sold.
Andy
Re: New method of controlling imaging gear
Andy,
Do I need to run the Ethernet cable to my Ethernet connection ( or desktop computer) , or can I connect the EC to my laptop that is working off the wifi?
Thanks,
Tom
Do I need to run the Ethernet cable to my Ethernet connection ( or desktop computer) , or can I connect the EC to my laptop that is working off the wifi?
Thanks,
Tom
Tom H
"Science knows no country, because knowledge belongs to humanity, and is the torch which illuminates the world. Science is the highest personification of the nation because that nation will remain the first which carries the furthest the works of thought and intelligence." - Louis Pasteur
"Science knows no country, because knowledge belongs to humanity, and is the torch which illuminates the world. Science is the highest personification of the nation because that nation will remain the first which carries the furthest the works of thought and intelligence." - Louis Pasteur
Re: New method of controlling imaging gear
Tom, here's how I did it before:NGC7000 wrote: Do I need to run the Ethernet cable to my Ethernet connection ( or desktop computer) , or can I connect the EC to my laptop that is working off the wifi?
And here is the new way with the USB extenders:
With the USB extenders the ethernet cable only connects the LEX/REX units and is not carrying ordinary ethernet traffic and must not be connected to an ethernet network. I belive Icron sells a different version of the product in which the LEX/REX units are attached to an actual ethernet network, i.e., through your ethernet switch. But this version uses a dedicated Cat5 cable to connect the two units.
Andy
Re: New method of controlling imaging gear
Understood about the Ethernet cable. What was I thinking? Great diagram. Thank you, Andy.
See you tomorrow night?
See you tomorrow night?
Tom H
"Science knows no country, because knowledge belongs to humanity, and is the torch which illuminates the world. Science is the highest personification of the nation because that nation will remain the first which carries the furthest the works of thought and intelligence." - Louis Pasteur
"Science knows no country, because knowledge belongs to humanity, and is the torch which illuminates the world. Science is the highest personification of the nation because that nation will remain the first which carries the furthest the works of thought and intelligence." - Louis Pasteur
Re: New method of controlling imaging gear
Highly unlikely. But I'll be there to hear your AP talk on Saturday . I'm looking forward to hearing your talk and the others. The weather forecast is not looking good for observingNGC7000 wrote:See you tomorrow night?
Andy
Re: New method of controlling imaging gear
Duh. Saturday. Right.
Tom H
"Science knows no country, because knowledge belongs to humanity, and is the torch which illuminates the world. Science is the highest personification of the nation because that nation will remain the first which carries the furthest the works of thought and intelligence." - Louis Pasteur
"Science knows no country, because knowledge belongs to humanity, and is the torch which illuminates the world. Science is the highest personification of the nation because that nation will remain the first which carries the furthest the works of thought and intelligence." - Louis Pasteur