More to the point - the signal does not (rpt not) travel on the outside of the copper conductor. Even though the signal is comprised of photons. The basic understanding of how electricity works eluded the Belden engineer. He was probably an intern anyway.
The Physics of Electricity
Can anyone explain clearly in either common parlance or technical terms the difference between a $1,000.00 cable and/or speaker wire versus a $20.00 (or so) one? What does wire "do" in an expensive cable/wire that an inexpensive cable/wire does not? Does it conduct more or "better" electricity?
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For the record, I disagree with just about everything in Geoff's recent posts in this thread. However I have no interest in engaging in further discussion of these matters, as I would rather focus on threads and discussions that have the potential to be constructive. Before taking my leave of this thread, though, I'll quote a statement by a world renowned author, consultant, lecturer, and expert on numerous branches of electrical engineering, Ralph Morrison. This was quoted by member Jea48 in another recent thread, entitled "directional-cables-what-does-that-really-mean?" Geoff participated extensively in that thread. Ralph Morrison And this from Wikipedia, which Jea48 also quoted in the thread I referred to: "In physics, the Poynting vector represents the directional energy flux (the energy transfer per unit area per unit time) of an electromagnetic field. The SI unit of the Poynting vector is the watt per square metre (W/m2). It is named after its discoverer John Henry Poynting who first derived it in 1884. Oliver Heaviside and Nokolay Umov also independently discovered the Poynting vector. I will have no further comments in this thread. Regards, -- Al |
almarg For the record, I disagree with just about everything in Geoff’s recent posts in this thread. However I have no interest in engaging in further discussion of these matters, as I would rather focus on threads and discussions that have the potential to be constructive. >>>>Thanks for not engaging me on this subject, Al. You’re the best. By the way, if you disagree with just about everything I said surely I must be on the right track. 🤗 |
There are differences that can matter mainly shielding from noise,  ability to establish a sound electrical contact on both ends and ability to deliver current when needed.   None of this is rocket science and requires  just a good quality power cord designed to do the  job well which has some cost but need not cost a fortune.  Current delivery will in practice matter more for power amps whereas shielding and ability to make a good contact may matter more in general.  |
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