: I know, I'm just wondering how did they get more frequency out of
:wire of the same size. I can understand it if the wire was a larger
:guage.
For twisted pair, Less power == less crosstalk. Plus the higher
bandwidth transceivers use better receivers and better pre-attenuation
of the signal.
I'm not sure what the gigabit copper ethernet people are doing, but there
are other ways as well.
Basic ethernet uses baseband which is quite noisy even with the
preattenuation, so there was lots of room to go faster.
-Matt
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