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CECE
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Joined: Sep 17 2005 - 8:16am
another bunch of wire science?

The last paragraph, these wire gurus say shieling of the power cord is BAD....yet other wire magicans say their's is shieled, which makes it better. How can both thoughts be right in wire magic? http://www.audience-av.com/powerchord/

59mga
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Joined: Jun 21 2006 - 6:52am
Re: another bunch of wire science?

Hey DUP, it's like religion...everyone has different beliefs but none are "right". It' is all a matter of what makes one feel good.

tandy
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Re: another bunch of wire science?

So? You say your AVA and Legacy components are better than others. So what are we to make of that? Does that make you a scam artist as well? Or just everyone else?


Quote:
The last paragraph, these wire gurus say shieling of the power cord is BAD....yet other wire magicans say their's is shieled, which makes it better. How can both thoughts be right in wire magic? http://www.audience-av.com/powerchord/

Patrick82
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Re: another bunch of wire science?

I have separated the shield 1+ cm from the power cables and I hear no weaknesses. If the shield was too close it sounded muddy.

showflash
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Re: another bunch of wire science?

In networking, where I come into contact with shielded cables the shielded cable needs to be grounded on the chassis on both ends or it acts like an antenna and picks up noise. If a shielded cable is properly grounded it is better than an unshielded cable because it rejects noise. In order for shielding to remain effective in a shielded cable you must not remove the shielding from either end. Both end must be grounded or the cable acts like an antenna and picks up noise.

If the shielded cable is not grounded properly the unshielded cable with the proper number of turns per inch offers the best noise cancellation, and it is much more simple to install.

In the United States most commercial networking cables are unshielded Cat 5e or Cat 6a because of the speed of deployment. Cat 5e, an unshielded cable requires less than 1/4" of untwist at the end where the adapter is affixed for its noise rejection to remain effective.

I would say that there is no magic just science again....have a little faith in the engineers doing the design work. I would also say that it looks like their science is messed up because it diverges from common networking knowledge. You have to know what you're looking at to know what is right.

In the following example as the frequency goes up the noise is moving from cable bundle to cable bundle through the plastic covering and this makes local area networks run poorly or not at all depending on the amount of noise. The tests are for 100 meters...~300'. Note that they say that flat cabling is bad, especially when run in bundles.

http://www.quabbin.com/tech_briefs/axt_rpt.html

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