What actually makes component cables so good??

Discussion in 'Archived Threads 2001-2004' started by Rod Melotte, Mar 14, 2002.

  1. Rod Melotte

    Rod Melotte Stunt Coordinator

    Jan 7, 2002
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    What makes them better then regular cables. Is it the actual material that are made up off?
  2. Bob McElfresh

    Bob McElfresh Producer

    May 22, 1999
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    Well, first off coax tends to be judged/rated by:
    - What frequency it starts to roll off
    - How steep the roll off is
    So from low-frequency to High in your system you have:
    Composite Video
    Component Video
    HD/Progressive Video
    DSS signals (digital)
    So ordinary video tops out at about 4 Mhz, HD video signals go up to 35 Mhz.
    The other part of a cable is the connector.
    The higher the frequency, the more sensitive the signals are to something called "Impedence Mismatch". Take a great, 75 ohm coax cable and slap a generic RCA plug on the end and you get reflections/attenuation in the signal.
    So the higher end cables tend to come with very precise, well made RCA plugs that maintain the 75 ohm impedence.
    The "Good" coax from Belden, 1694A, runs about $0.30/ft. So thats about $1/foot for 3 cables.
    The Good coax from Canare, V3-5CFB (3 cables in 1 bundle) runs about $1.18/ft.
    The wonderful Canare true 75 ohm RCA plugs run about $3 each.
    This is what you would need to make a Premium component cable set capable of handling HD signals.
    There is a great site that shows you how easy it is to make your own cables by one of our members: http://www.bus.ucf.edu/cwhite/theater/theater.htm
    Click on the "DIY Projects" link, then on "Audio/Video Cables" for the details.

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