BASIC CONCEPT TO UNDERSTAND ABOUT ALL CABLE TYPES

ATTENUATION (Distance Limit):

                                In nearby all cable there is a distance limit at which the signal on the wire wakness and no longer can be recognized.

ELECTROMAGNTIC INTERFACE

                                                                Virtually all electrical devices emit electromagnetic waves that can cause interference and impair the signal of other devices.

RADIO FREQUENCY INTERFERENCE (RFI):

                                                                                   Devices that broadcast wireless or radio signals can produce interference through radio waves transmissions picked up by other electrical devices, which is the case of EMI.

CANCELLATION:

                                The electromagnetic fields of two wires placed in close proximity can cancle out each other. This is generally a good thing and helps control the signal being sent over the individual wires, but too much cancellation can destroy the integrity of the signal carried on either wire.