Computer Audio Asylum

Music servers and other computer based digital audio technologies.

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Original Message

I think that was me.

Posted by hfavandepas on May 29, 2011 at 16:50:37:
Hi Greg,

I think that was me.

I did that twisting because than I used 2 solid core wires.
Twisted together they made one compact power supple cable.
I used that braided solid core wire between my linear PSU and the Pico.

At this moment I again use a twisted pair between my lineair PSU and the Pico. However now I use 2 wires of 2 mm stranded copper wire twisted together.

Why do you think a twisted pair will work better against conducted noise dan clamp on ferrite breads?

As far as I think I understand the purpose of twisting a pair of wires in a cable: it is to minimize the effects radiated noise onto that cable. (electromagnetic induction in that cable caused by electromagnetic fields).
A straight wire will work as an antenna. In a twisted pair the wires will also works as antennas, but in a twisted pair each wire loop will (more or less) cancel the signal picked up by the opposite wire in the next loop and vica versa. (If I'm correct, this is the theory behind the use of a twisted pair)

So I think a twisted pair will do a better job on radiated noise.
But too my knowledge a twisted wire pair has no advantage over a straight wire pair when it is about conducted noise.

May be other inmates can shed some light into this matter.

Mark