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the length of vga cable

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soccercats

Technical User
Jan 11, 2007
1
US
I intend to connect my PC (Nvidia 256MB of memory) to my 42" LG LCD and I need about 25 to 30 feet long vga,is it too long to maintain the picture quality? 1280-768,or is there another way arround?
 
You don't say what resolution your are trying to use or the LCD monitor specs so it is hard to give a firm recomendation.

There are two ways to connect:

1. Long VGA cable. Something like this:

2. VGA extender. Something like this:

Both of these are representitive of the products needed. If you decide to got the cat5 route you might want to check eBay. I have found nice KVM extenders there for under $100. DON'T use cat6 on a extender unless specified by the manufacturer. In general the units are balanced for cat5 and they don't work well with cat6.
 
APC's AP5201 KVM has 25' cables available for server/WS to KVM.

I would check with the manufacturer or tech support for the monitor for cable length limitations.

Hope this helps.

....JIM....
 
I have run these resolutions over 25' and longer cables without marked signal degredation.

One item of note, if you are running this cable up a wall or in a drop ceiling, stay away from lighting and electrical as it could induce some interferance.
 
We have just gone thru the exact same process at work (we're installing HDTV's to display advertising - content is streamed from a PC base). The AV engineer who did the cabling said that good quality VGA cables are fine to approx 25', and that he has run slightly further with no real issue, BUT after that you run the risk of a poor image. As robertjo points out, stay away from any form of interference. The easiest way for us to run was along the top of a lighting track, but we were advised to stay away from that.
 
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