Quote:
Originally Posted by ste g  hey guys,
I was wandering if someone had somekind of chart or if they knew themselves and woudn't mind answering the following: 1. will I loose a significant amount of video quality if I put an RCA adapter on the end of a BNC, or any quality? |
No. As others have said there is not much if any difference for RCA vs BNC BUT BNC has MUCH more mechanical rigidity and LOCKS which is a big deal for connections that are constantly being made and remade.
Quote:
Originally Posted by ste g 2. whitch one of the following gives the best quality for short runs?
3. '''''''''''''''''''''''''''''''''''''''''''''''''' '''''''''''''''''''''''''''''''''''''''''''''''''' ''''''''''''''''' long runs?
4. """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""' in general? |
You are mixing up connector types and cabling types here.
BNC and RCA are connector types.
COAX is a type of cable with a spaced centre conductor and shield (e.g. TV aerial cable) and
and S-Video is a way of cabling video signals using separate Y and C cables.
If your question is "what is the best cable type to use over long runs etc." then Video over Cat5 is best for very long runs (100m+) as it uses balanced signalling.
For more info on Cat5 issues, check out
this post on my blog.
For shorter runs component (YCrCb) on three separate cables gives the best quality, but most prosumer gear only copes with S-video (two cables - Y and C) or composite (everything down one cable) is trailing far in the rear. Of the latter two S-Video is superior because it gives better resolution and colour quality and avoids the dreaded 'dot-crawl' on graphics and text.
If you are installing cabling I would always recommend installing two COAX runs to allow you to use S-Video if you can.
For more info on using long S-Video cables check
this post
Hope that helps