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distortion over long svideo cable

Last response: in Graphics & Displays
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January 17, 2004 3:01:49 PM

I have a radeon 9200 vid card with an s video out. I'd like to hook this up to the tv across the room (12" if I go straight across the floor or 25" if I run it through the walls) so I can play games and watch divx movies etc. Can someone tell me how much signal degradation I can expect if I do this? I had considered getting a wireless media router but they're either too expensive or they don't handle Divx/Xvid so this is the next best thing. Also, how do I handle the sound? I have an nforce board with standard and spdif ports and I'm sure I can hook that up to the sony dream system somehow(Max Payne2 in surround sound)but do I have to route the sound seperatly? Any help is appreciated.

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January 17, 2004 3:47:50 PM

25 inches is nothing. if you mean feet i dont think you will ever find an svideo cable that will go 25 feet. i never did so i made one out of cat5 cable. there was a little bit of loss but it was acceptable. i think it was about 60 feet. as for audio, no problem there.

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January 17, 2004 4:17:54 PM

DOH. Yeah I meant feet. If you google 15 foot s video cable there's a couple of companies that carry them. Bettercables.com has them up to 25feet so I guess I answered my question. Thanks.

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a b U Graphics card
January 17, 2004 5:33:42 PM

Yeah you can get them (and make them) longer, it all really depends on the quality of your cable. You might experience less signal loss in MONSTER 25ft cable than you would from your typical RadioSnatch special 6ft stuff. Svideo is tricky due to the timing (not as bad as component), but a GOOD quality make won't be a problem. Also don't kink or damage the cable while installing or that will do alot more damage, that even good cable can't make up for.


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January 17, 2004 6:11:33 PM

If you use a shielded cable that costs a few bucks you wont pick-up any interference from house hold background noise.

A 25 foot cable is nothing to a video feed. We routinely run 4000 yards of cable out to small cams on poles for surveillance purposes.

Just dont run the vaccume cleaner in the middle of Blade Runner ;) 

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a b U Graphics card
January 17, 2004 6:26:11 PM

S-video is different from COAX-RCA composite signalling.
Resistance between different wires would be more of a factor than simple ambient interference.



- You need a licence to buy a gun, but they'll sell anyone a stamp <i>(or internet account)</i> ! - <font color=green>RED </font color=green> <font color=red> GREEN</font color=red> GA to SK :evil: 
January 17, 2004 6:49:35 PM

Like I said at his 25 foot expectations he wont have any problems.

I have run feeds off computer graphics cards well over 25 feet at parties.

As long as he buys a shielded cable he will have zero problems.

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January 17, 2004 7:12:34 PM

I connected my Geforce4 MX440 (everyone makes mistakes) to my 43" with prolly more than 60' of cable and there is some distortion and lines which run over the screen that would make you go nuts. Than I made my best purchase to date which is an Xbox with a Mod-chip and an Evox BIOS. I put in a 30GB HDD, installed XBMP (Xbox media player) and now I can, via Ethernet, transfer TV shows, movies, audio files, pictures, and view them there using the Xbox's graphics card which is optimised for TV, not to mention playing, umm, back-up games. Oh, and XBMP has been able to play every file I ever tried on it except 1.
The Xbox is something like 180$ and the chip prolly less than 40$.

Got a nice overclocked overvolted system to keep you warm at night? That's great. Guess I'll have to settle for a woman...
January 18, 2004 12:59:19 AM

I needed to run S-Video 25 feet from DVD player to my TV. I didn't have a cable that long so in a pinch I took one of those freebie, 1-meter cables included with most players, cut it, and spliced in some four-wire telephone cable (solid conductor) which I had lying around. It worked well enough that I never bothered replacing the cable.

I'm not saying you should do this. I'm just pointing out that 25' is a short distance for s-video. You can use just about anything and not see any serious signal degredation.

At 100' or 200', well that's different.

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January 18, 2004 9:11:34 PM

WOW. Thanks for the info everyone.I guess I'll be looking for a monster cable or something of equal quality. I can't wait to play my games on the tv (I have a crappy 15" monitor but the tv is 36" flat screen). Again, thanks for everything.

A7n8x dlx 1004 Uber Agressive settings
2500Barton (Bastards locked it) Radeon 9200
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AMD ME??? Yeah they did me alright.
January 18, 2004 11:12:46 PM

I thought I was clearly stating that high quality video cable is not necessary for 25' lengths. On the other hand, it won't hurt either.

Games via TV-out are pretty crappy even with S-Video.

Movies are OK but games are fuzzy and in relatively low resolution.

Give me a good monitor any day.

What make/model is your TV? Does it support VGA-in, or RGB, or component video? If it does you can get better picture quality with one of these connections than with S-Video. Some TVs now support non-interlaced modes. However, these cables would cost more for your 25' requirement.

<b>56K, slow and steady does not win the race on internet!</b>
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