What is Near-End Crosstalk?
Near-end crosstalk is a phenomenon that can take place when there is some form or electromagnetic interference taking place with relatively close to the point of measurement. The effect of near-end crosstalk is that the signals being carried by two different cables or wires may begin to interfere with one another in a manner that degrades the signal of at least one of the two transmissions. The problem can take place due to something as simple as a temporary twisted pair cabling or worn spots in the insulation of the cabling proper that allow the wiring of the two cables to come into close proximity. Along with near-end crosstalk or NEXT, there is also the occurrence of what is known as far-end crosstalk or FEXT. FEXT is essentially the same set of circumstances that occur with near-end crosstalk. The only difference is that far end crosstalk is the detection of a signal crossing or disruption that is located at a distance from the point of measurement. As can be imagined, the occurren
