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Resolved Question

length of ethernet cables

Dec 4, 2011 4:18AM PST

At what length, if any, does the signal dissipate when running an ethernet cable to a wifi connection. Wanting to put my airport express in my attic, wanting to know if there is a difference between 15ft. and 20ft. in regards to signal.
Thanks,
JJ

Discussion is locked

jjbb34 has chosen the best answer to their question. View answer

Best Answer

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100 Meters.
Dec 4, 2011 4:22AM PST

While you have a good question, Ethernet over twisted pair is rated for use up to 100 Meters. At such short lengths, no one would take time to measure signal loss.
Bob

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ethernet cable lenghts
Dec 4, 2011 7:18AM PST

Thanks for the reply, good to go.
Could you please explain what you mean by"over twisted pair"
Thanks, again
JJ

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Ethernet came out long ago.
Dec 4, 2011 8:28AM PST
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(NT) Boy, I remember that one.
Dec 4, 2011 9:51PM PST
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Vaguely remember
Dec 5, 2011 1:28AM PST

WOW that goes back a ways, seems as if Bob has been at this quite a while, I have to say that I am impressed,

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Twisted pair . . .
Dec 4, 2011 9:54PM PST

Inside the Ethernet cable sheath are four "pairs" of wires. These pairs are twisted for one reason. Twisting reduces induction (both mutual and self) and in effect reduces signal loss. More twists per inch enables longer lengths.