John Andersen wrote: > On Thursday 07 June 2007, James Knott wrote: > >>> If I remember correctly shielding is a two way thing, basically you are >>> running a potential 40ft radio aerial in the latter case. If you have a >>> lot of cables or have anything which is sensitive to radio emissions >>> close by, Cat 6 starts making sense. >>> >> ???? >> >> There are two ways to reduce interference to & from a cable. Those are >> shielding and twisted pairs. UTP cable, including CAT 6 relies on >> twisted pairs to reduce interference. Unless the twist rate for CAT 6 >> is significantly more than CAT 5, there will be little difference >> between the two for interference purposes. >> > > Exactly so. > > Also this 40 foot figure bandied about here totally ignores the > fact that entire buildings are wired with CAT5 runs much longer than > that with no problem. > > Yep, up to 100M or about 330'.
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