The Calculation of the Radio Interference Level of Transmission Lines Caused by Corona Discharges [includes discussion]

The mechanism by which the principal wave, which travels along the line and interferes with radio reception, is generated is expressed in mathematical terms and related to the currents which flow during laboratory tests of samples of conductor. These tests are described in detail. The generating functions so determined are used to calculate the electric and magnetic intensities of the interference field near the line. The statistical properties, namely, the correlation function and the spectral density of the field intensities are employed to superimpose the effects of several line conductors. As an example, a comparison is given of the interference level of two lines equipped with the same conductor but one of horizontal and the other of vertical configuration.