Is there anyway I can make a cable that can output to the yellow plug of an rca cable rather than component?

I don’t believe so, wrathofpyro. The standards are not compatible. The VGA connector provides Red, Blue, and Green component video lines, but the RCA composite video consists of a Y signal for Luminance/Brightness and a UV signal which itself is composed of two separate colour signals mixed with a colour carrier frequency. You could probably do it, but at that point it’s not a simple hack anymore and you’re better off buying a stock converter of some kind. (Assuming one even exists.)

sigh thats too bad then… I had a junk monitor I wanted to play ps2 with

Nuts. I tried to convince my dad at his office to do this but he wouldnt do it. I knew i had seen plans for this somewhere

Then I tried to get him to do the USB through the Ethernet cable sitting at the desk. Nope had to pull a cable for that also.

The computer sits 15 feet away in a closet. VGA over Cat5? nope had to spider a cable that far.

Hope he is happy.

6:
sounds probable. i was thinking that you’d also get a lot of noise/interference with cat5 cable b/c the lack of proper shielding, which a normal vga cable would have, since vga is an analog signal.

there would be no shielding of the vga signal unless it used balanced lines like cat5 was ment to be used. unless i have something horribly wrong i dont think there would be any shielding at all

That was awesome, it’s cool how cat5 can be so virsitile. I was wondering about that vga to component cable. Right now i have a pc, which i use as a media-center, hooked to my plasma tv through a scan converter. The problem is that the scan convertr down-converts any signal it gets to 720×480, for compadibility. I know my tv’s capable of more than that. Could i use the vga to component cable to bypass the scan converter and use higher resolutions? I have a radeon 7000 series card in that computer if it matters. Thanks.

wrathofpyro,

what you need is a transcoder. if you only need RCA to VGA you can find them cheap. If you want component to VGA it will run $100-$300+

I have a Nextvision 6 i use for my xbox and it works great! sometimes you can snag one from ebay for cheap (payed ~$130 for mine)

What about a extender with stereo audio signal AND s-video? audio uses two pair, the s-video uses the other two… so far its fine, but how about noise one on the other? Is a booster recommended? Anyone knows how to make a booster for AV???

wrathofpyro: no. different video standards.

luiz_borges: I got a lot of ghosting etc over even a fairly short run doing that, but I suspect the cable runs over top of some lighting or heating wires in the ceiling. ymmv. worth a try though I would think :)

This is cool. For those that don’t understand? There is a trick involved in this.
Every “pair” of wires in the cat 5 cable “must” be transmitting and receiveing the two sides of the SAME SIGNAL. IE, if there is a high frequency video signal on 1 wire, the corresponding ground return for that same signal MUST go through the other cable (the same color). That is what gives you the shielding effect. Any EMI induced in one wire has the counter EMI induced in the other half of the twisted pair. Since the counter EMI is induced in the exact same voltage but “backwards” to the original the EMI is canceled out at the end (where the monitor is at). If you make the mistake of just thinking of the cat 5 cable as 8 wires, you will never make a cable like this work. If you are carefull to ensure that each signal goes thru a “twisted pair”.. this will work.. as well as a shielded cable.
As I remember it, a VGA cable has 3 color signals going through it. One for Red, Green and Blue. The remaining 2 wires are used to piggyback the rest of the pins. Since they don’t carry high freguency AC, they don’t matter as much. Only the 3 AC signals for the 3 colors really matters for video quality.
Interesting.
The only pitfall of Twisted pair (cat 5) over Shielded (VGA Cable) is at higher frequencys. Once the wavelength of the EMI interference gets close to the twists per inch of the Cat 5 cable? The EMI can induce into one cable more then the other. This means the shielding effect works best at low frequencys (like power cables) Just keep it away from super high frequency stuff….. and make sure that any high frequency signals get transmitted and returned on a single pair of twisted wires.
If you understand this simple rule, you can send any high frequency signal over a Cat 5 cable as long as there are 4 or less high frequency signals. (Component only uses 3 so it will work). oh… It is recommended you keep the bends of the Cat 5 cable to a minumum. If you make a sharp bend in the cable, you can cause signal degradation at the bend….

Your cable is out of spec. A good VGA cable requires 75 ohm internal cables. If you were to run that cable for a longer distance you would start getting convergance errors and rf problems. You might want to try building a high quality cable with five 75 ohm tv cables of equal length. Maybe a short run to a project box then a 5 cable fanout from the box.

Is it possible to make a VGA splitter using CAT5? Have you already created one and do you have a link that I can use as a reference for making one? thanks

you can use this adapter http://www.vgaextend.net

this worked great, http://www.vgaextend.net great product
i never thought it would work this good. i have my TV 50 feet away from my media center PC. HD baby HD for $13