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In Reply to: RE: what make coaxial cable impedances of 50 ohms and 75 ohms ? posted by Duster on January 16, 2017 at 20:01:35
cool.
what i understand is if you take off braided shield then it seem the cable will be the same impedance wise if else where the same
Follow Ups:
Well, it won't because it's the precision structure of the dielectric in relationship placed between the center conductor and outer braided shield is what matters for a 75 ohm interface. It's a measured relationship based on a specification. Otherwise, the wire itself is only a signal conductor, without any relationship with the return conductor or its dielectric energy storage and quick-release tendencies, for example.
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