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Faraday cages and cables

AJJewsbury
I've read a couple of things recently and wondered if they could go together, so a theoretical question...


would you consider the screen (foil or braid) of a cable an example of a Faraday Cage?


and so could a co-ax cable be considered simply a single core screened cable (if one with carefully controlled geometry to ensure performance at high frequencies)?


   - Andy,
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    The important thing about twisted pair signals is that the same signal is sent down both wires, but inverted in one wire. At the receiving end, the differerence between the two signals is taken to extract the data. Interference tends to induce the same spike on both wires (common mode interference), and taking the difference effectively subtracts out the interference.
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    The important thing about twisted pair signals is that the same signal is sent down both wires, but inverted in one wire. At the receiving end, the differerence between the two signals is taken to extract the data. Interference tends to induce the same spike on both wires (common mode interference), and taking the difference effectively subtracts out the interference.
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