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Twisted pair cable question

  1. Sep 11, 2011 #1
    Why is that in twisted pair cable, the tighter the twisting, the higher the supported transmission rate?

  2. jcsd
  3. Sep 11, 2011 #2
    The tighter the twist, the better the coupling between the two wires, the less the EM escape out along the surface so less energy is lost from radiation along the way so higher frequencies can be carry for longer distance.
  4. Sep 11, 2011 #3
  5. Sep 11, 2011 #4
    I totally forgot the common mode rejection part!!! Sorry.
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