"dg" wrote in message
...
I don't want to say any more than I have to about this, I don't want to
contaminate the answer. Lets just say 2 people disagree about something.
I am trying to keep it simple.

Lets take for example a simple piece of coax. 1 center conductor, 1 outer
braid. The cable is carrying AC in the RF range to an antenna. Why coax?

Do you think the outer braid could be correctly referred to as a "shield"?

Thanks,
--Dan

Dan,
Basically, the differrence between coax and shielded cable is that coax will
have a controlled characteritic impedance. Shielded wire will hava a
characteristc impedance, but it is not specified. Shielded wire is normally
terminated in an impedance that is orders of magnitude higher than the wire
impedance, and people who use it are more concerned about its capacitance in
PF/foot.

Tam/WB2TT

I second Tam's answer, having suffered through undergrad EM fields.