75ohm audio cable for svideo? - Electronic Circuits Projects Diagrams Free

bh00 · 15th December 2006, 11:29 PM

Hey,

Would using screened audio cable such as this work for sending S-Video or composite video over 10-15m? Either using the two cores to carry the chrominance and luminance signals of s-video or just using one core to carry the composite signal. What kind of signal degredation would I get?

Thanks,
Ben

hjames · 16th December 2006, 06:36 AM

75Ohm refers to characteristic impedance, not a resistance Ohms/Km measurement. Also SVideo cables tend to have two seperate shields, one for each signal.

I wouldn't be too optimistic...

Sceadwian · 17th December 2006, 04:10 AM

15m's is a long distance for a video signal. Seeing as how there is a fair number of variables, you're really not going to know unless you try it, and trying it will be a lot faster than trying to calculate it.

bh00 · 30th December 2006, 10:23 AM

Bought myself a long 15m S-video lead of Ebay - seems to have done the trick!

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15th December 2006, 11:29 PM	(permalink)
bh00	75ohm audio cable for svideo? Hey, Would using screened audio cable such as this work for sending S-Video or composite video over 10-15m? Either using the two cores to carry the chrominance and luminance signals of s-video or just using one core to carry the composite signal. What kind of signal degredation would I get? Thanks, Ben

16th December 2006, 06:36 AM	(permalink)
hjames	75Ohm refers to characteristic impedance, not a resistance Ohms/Km measurement. Also SVideo cables tend to have two seperate shields, one for each signal. I wouldn't be too optimistic...

17th December 2006, 04:10 AM	(permalink)
Sceadwian	15m's is a long distance for a video signal. Seeing as how there is a fair number of variables, you're really not going to know unless you try it, and trying it will be a lot faster than trying to calculate it. __________________ "Because I be what I be. I would tell you what you want to know if I could, mum, but I be a cat, and no cat anywhere ever gave anyone a straight answer, har har."

30th December 2006, 10:23 AM	(permalink)
bh00	Bought myself a long 15m S-video lead of Ebay - seems to have done the trick!