I thought I saw this before, but my search wasn't productive ...

Especially for those of you mounting your projectors on the ceiling, what advice do you have about obtaining a long VGA cable to connect your video source (e.g., the N6) to your projector? Ideally, I'd like a cable that runs from the front to the back of the room and up the wall, though such a cable may need to be 25'. I'm concerned about a loss of signal quality.

Thanks for your help.

Jason

Theres a way to use CAT5 cable (ethernet cable) to sort of splice into a VGA cable... I will have to find the link for it. I'm pretty sure its complicated but alot cheaper than going out and buying one.

I've used vga cables from 25-75 feet and haven't noticed a decrease or distortion in signal .

At XGA resolution you can probably go that far if you use decent cable. I believe 30' is the max length for quality cable.

Great prices on VGA cables:

http://www.audioexchange.com/monitorcables.html

But I have not tested these.

Not bad prices at all...

where can i get a VGA splitter?

Ex.

------> Monitor
One source ----->
------> Projector

Thanks

http://www.cablesforless.com/browseproduct...tter-Cable.HTML

Read the warning

If you need mulitple monitors simultaneously:

http://www.trianglecables.com/1pcto2monvga.html

What about these cables on EBAY - I'm thinking of getting a 50 foot cable.\

Should I not?


I have only seen the 25ft or 50ft. It would be nice to have 30ft - can't find it Yet

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewI...3474166290&rd=1


Brainchild - is this about the same quality of the place you gave the link

to.50ft VGA cable on EBAY

Like brainchild said, at XGA resolution, 50' is probably too far. Even though I've used 50-75' cables without any distortion or degradation. The cable I use looks just like the picture on that auction too.

Using this chart blatently stolen from here I plan on making a VGA to CAT5 (or whatever i can get my hands on) conversion.

VGA Video connector pinouts:
Pin # - Signal Name - CAT 5 Conductor
1 - Red - Orange
2 - Green - Green
3 - Blue - Blue
4 - No Connection
5 - Ground - No Connection
6 - Ground - Orange/White
7 - Ground - Green/White
8 - Ground - Blue/White
9 - No Connection
10 - Ground - No Connection -
11 - No Connect
12 - DDC DAT - No Connection
13 - Horizontal Synchronization - Brown
14 - Vertical Synchronization - Brown White
15 - DDC Clock - No Connection

I plan on cutting the ends off a spare vga cable, splicing (soldering) the correct wires to the corresponding colors of ethernet and tipping it with an RJ45 connector on about a 5inch piece of cat5. Then using a simple RJ45 extender piece to make the connection for the patch cable. Doing that for each it it will make it easier to switch out patch cables for variable lengths and the ablity to use STP (shielded twisted pair) incase I need to run along power cables which will probably be the case.

You go boy!

Yea, my quite insane girlfriend decided to go on a roadtrip around america (more like a lap since its one giant circle) so I'll have more time to mess with this stuff.

Yay, you get to surprise her when she gets back!

Suprise her with an ultra long vga cable? I dont think she will understand, its the same girl that could get her printer working with the usb cable plugged into the phone jack.

(She's already seen the projector, so thats no suprise even tho its not totally finished, I made my box too short.)

Oh, I misunderstood.... In the phone jack?

Yes in the phone jack. Its one of them all in one does everything but make popcorn printers. It wasnt even look like it fit nicely, it was crooked and half falling out. And she says she got a 1560 on her SAT's in highschool... I call shenanigans .

Yes - My Wife is ready to put me outside with my projector, maybe move me into the garage.


jeremyvnc - The cable you used at 50-75 feet - when you said no noticeable degredation!

So what you observed was this at XGA resolution. Bottom line - you think the cable on ebay will not work properly at 50 feet.

How about the quality of the home made cable - verses - the EBAY cable.

Thanks


www.tntprogram.com - My Television program website.

I am a non for profit - you would think I would forget this homemade stuff. But I have always been into building stuff and using it.

What I said is that I think that the cable from ebay would work.
I know nothing of making your own VGA cable. I don't see why this wouldn't work as long as all the wires match up (apples with apples).

The monitors that I used with these cables are 17" Dell Flatpanels (SXGA). Look great. I've never cut a VGA cable to see what gauge it is so I couldn't tell you if one works better than the other. I would assume though that the cables have the same or near the same guage wire.

You are very helpful

------ THANKS ----------

I'll let you know after I make mine TTT

We have a laser tag arena at each of my company's locations and they monitor a game, scores etc on a computer in the office, but for the player's convenience there are also 2 monitors in the arena so they can see their stats as they play. Point is, the player's monitors are over 100ft away. We use a 4-way VGA splitter that incorporates a 20db signal booster. Granted, the usual display is DOS based, but if you load Windows, there is no discernable loss in quality on the remote monitors.

I use VGA cables for medical imaging in my hospital all the time. Soem are up to 100 feet. What we found is there are 2 types of VGA cables. The first (and cheaper type) just has individual wires within a single shield. This is usually the thinner VGA cables. The second type has 3 coax lines for the RGB signals, and usually 2 more coax lines for the hsync and vsync. Sometimes, the sync wil just be a pair of non-coax wires.

Over such a long run, what you are looking for is to reduce signal loss. Using coax, you are completly shielding your signal wires twice.( The shielding around each line, and the shield around the whole cable assy.)

The second problem with a long run is the ability for any wire to act as an antenna!!!! Always keep poorly shielded video lines away from electrical wires. You may get interference.