Power line communications (PLC) is a promising technology that is rapidly gaining traction in smart meter reading (AMR) demand response and SCADA applications. In the U.S., the FCC permits the use of frequencies less than 500 kHz for narrow band PLC. This has resulted in a host of different technologies being developed from single carrier systems such as LonTalk to multi-carrier systems such as PRIME, G3 and IEEE P1901.2 (in the process of being deployed) for communication purposes.