- The cable should have a 75 ohm, or better, impedence rating.
- The cable should have a common-mode choke(Ferrite core) near both ends to
protect from EMI/RFI. It looks like a cylindrical molded plastic piece near the connector ends of the cable.
BNC cables generally do not have it at the BNC end.
- The cable should have copper braid shielding to protect against interference.
- You want a low attenuation cable.
- Watch cable length. The longer the cable, the greater the reflections the cable can cause.
- 13W3 and BNC cables are better shielded than others and therefore, better designed for the
high frequencies that new monitors and video cards use today. They also help reduce interference that
much more.
Other Guidelines:
- Some cables are designed for high frequency use. Some are not. Be sure to know what you are buying.
- Plenium cable has a fire code rating which allows it to be used in applications where national electric code,
fire department-rated cable must be installed. So, if you want to run it through the wall, for instance.
- In buying a computer, monitor, video card, and other accessories, the cable sometimes falls by the way-side.
Any old cable will do won't it? This just simply isn't true. Listen to your expensive Bose sound system with pathetic wiring, or
drive your super sports car on less then premium gasoline and what's their performance? Not nearly where it can be. So take time
out to get the best cable possible for your system.
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