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Frage von david2:


At Wikipedia, I am on the following statement gestolpert:

A disadvantage is that the separate transmission of luminance and chrominance S-video signal susceptible to interference of the two lines, and time differences make. Beyond a cable length of 10 meters are available from S-video, therefore, a worse picture than composite video.

Is that? The lines are always parallel, where there are time differences arise?

I am planning a live video display and had both options (Y / C and CVBS), the cable length is 30 meters .. 20th lie. Sure, the cheap cable quality generally deteriorate.

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Antwort von thos-berlin:

Sounds plausible.

Here in the forum, there are some low-budget live-producers (not meant pejoratively, is just about the technsciehn opportunities, not just millionenteurer truck), which certainly can communicate their experiences.

Just this: All the monitors will check with FBAS activated. I myself have a video in a Monitorblid about 100m on good FBAS cable transfer without apparent interference. I think the cable quality is crucial. Give it a try. Lending it out you two drums BNC cable and the matching YC - and make a comparison. A Tagesmite is not expensive.

If you apply for your SOWISO cable must buy, then take one-100m-Ring. Is a pipe, then wrap the rest for a rainy day and special applications on a cable ;-)

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Antwort von WoWu:

@ David2

The different times between the colors, but synonymous between luma and chroma are based on two facts: different transmission frequencies and the cable synonymous qualities.
SKEW effect is called the phenomenon that is mainly for large distances and high resolutions (high frequencies) means that the colors s.Monitor different, because they arrive at different times. Even the "Twistung" of the cable leads to this effect, because the cable lengths on large distances but may differ materially.
Devices as a remedy, the SKEW correction.
Only here we are talking about distances of more than 100m and high-quality signals.
You will be at 30m this effect hardly noticed, because he is so small. Should he, against all expectations, but disturbing, so you need to compensate. Even cable with "solid", not Twisted soul help to reduce the effect.

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Antwort von david2:

Merci! Thanks for the interesting answers!

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