Behavior of radio receiving systems to signals and to interference

Edward Bennett: In order to appreciate the significance of the point of view which has been developed in Professor Peters' paper, it may be helpful to review the sequence in which the knowledge of the properties of circuits has developed. Practising engineers were first confronted with direct-current problems, and quickly obtained a very good understanding of the properties of complex networks or combinations of circuits, provided the problems related only to the steady flow of continuous currents in the networks.