This book covers planning and maintenance of digital power line carrier (DPLC) channels along high voltage 35-750 kV alternate current power lines, providing readers with an introduction to the relevant industry standards, structure, and construction of DPLC equipment. Coverage includes DPLC equipment use in digital transmitting systems, including digital modulation and coding, channel equalization, and echo cancelling; DPLC multiplexing systems and network elements; different characteristics of high voltage power lines as media for high frequency PLC signals transmission; and planning of DPLC channels. Practicing engineers and researchers involved in the development, design, and application of high voltage power line carrier channels, as well as students studying communications and electric power grids, will find this book to be a valuable reference guide.