Quote:
Originally posted by Enzian
Most people don't know that the signal in coax is transmitted along the outer braid (ring) - not the solid center (tip). At high frequencies, the sold center becomes the "ground", cancelling noise. Just thought I'd share.
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Well, I knew that
But I was hoping you could help me out on a few other things. I've only taken a few Phys classes at University a while ago, so you are probably fresher with it.
What happens when you change the compacitance of the wire? I've heard that this is what Monster and other high-end cable companies do to their Speaker Wires. I've heard it creates a high frequecy wave in the wire. This wave alters the sound created by speakers, making it more pleasent for many people. So, when someone says it sounds better, for them it does. It is just not an accurate sound they like.
Can this wave interfere with a digital signal?
Now, when we are dealing with voltages in a wire, how can you interfere with it?
In a coax cable the 1's and 0's correspond to certain voltages. So to get interference that would mess this system up, the voltages would need to be messed up.
Now, to do something like this don't you need to subject the wire to a large fluctuating electromagnetic field. But where can you find a field large enough, in the 3 feet between your DVD player and reciever, to alter the voltages by more than a volt?