CHARACTERISATION OF COMMUNICATION CHANNEL ON HIGH VOLTAGE ENERGY TRANSPORT AND DISTRIBUTION SYSTEMS Power Line Communication (PLC) can be used to create a communication system across Medium/Low Voltage electrical systems. It enables establishing digital communications without the need for extra wires allowing transmission of data and electricity over the same media. The system, which is made up of a transmitter and a receiver, ensures monitoring and control of electrical distribution installations over long distances, particularly in situations where maintenance is challenging. Despite its benefits, PLC channel is quite harsh and presents a number of challenges. With respect to frequency, location, environment and the sort of equipment connected to it, a channel’s characteristics and properties change.