Thread: Meade DSI
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Old 26-09-2005, 10:57 AM
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anthony2302749
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Join Date: Aug 2005
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Hi John

I purchased a PCMCIA USB 2.0 Card (I paid $30 for it at a computer swap meet) so I could use my Lumenera LU075C on my HP Laptop instead of using my wife’s work laptop. It occurred to me when reading your post that the PCMCIA that I purchased can be powered from an external source (I checked the specification on the packaging), this may solve your power and speed issue. I also took the time to checkout the net and found some companies that sell USB2.0 CardBus PCMCIA Card with power adapter.

http://www.shopbot.com.au/price/REPOTEC-4-port-USB2.0-CardBus-PCMCIA-Card-with-power-adapter.html

http://altech.com.au/products/showProducts.asp?subName=Card&catNa me=USB%20%26%20Firewire

http://www.stonebridgecomputing.com.au/catalog/repotec-4port-usb20-cardbus-pcmcia-card-with-power-adapter-p-1246.html


This should help you out if you attend to do most of your imaging at home like I do.


Anthony

Quote:
Originally Posted by JohnH
David,

To be clear on this point:

The LPI/DSI work more reliably with computers equipped with a USB 2 hub; there is no variation in performance between individual USB ports on a given PC (except you must have the camera installed for the port).

I have heard this comment before I have also seens this behaviour attributed to the cable (must be capable of supplying the power) but it is of little consolation to me as my laptop has USB 1 and I will not be changing it any time soon. I suppose I could add a USB2 PCMCIA card (would fix speed but not power issues?) or connect a (powered) USB2 hub to my USB 1 port (would fix power but not speed) and get better reliability, anyone done that? It is very annoying when if freezes - especially as I bought this gear to guide with more than for imaging - this forces me to use GuideDog rather than ASSuite which does not seem to suffer the same issues. Looks to me like ASS is a VB app and thus has performance issues (poor multitasking/single thread design).
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