Power Line Radiations and Interference Above 15 MHz

The authors present the highlights of most utility interest in ac power line radiations above the radio broadcast band. Exceeding some 15 MHz sparks and microsparks are the sources of interference; their generation and propagation, the frequencies involved, and the conflict of interests that result are described. The accent is on television where, although a majority of complaints are caused by others, the power utilities are called upon to locate almost all sources of interference. Investigation procedures and instrumentations used are discussed, and explanations of physical phenomena and corrective measures are provided.