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Discussion in 'Archived Threads 2001-2004' started by Rod Melotte, Mar 14, 2002.
What makes them better then regular cables. Is it the actual material that are made up off?
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:
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.