FIELD: electrical engineering. SUBSTANCE: method can find use in organization of communication channels with employment of 0.38, 10.0, 35.0-110.0 kV power lines without communication processing by high-frequency rejecters. Invention solves problem of increase of noise immunity and speed of transmission of signals up to 50 or 100 baud. Synchronous detection of signals with use of integration whose start and finish are determined by characteristic points which are time moments of transition of common voltage through zero at transmission and reception centers is employed in proposed method. EFFECT: increased noise immunity and speed of transmission of signals. 1 dwg
