Crosstalk in Coaxial Cables - Analysis Based on Short-Circuited and Open Tertiaries

OR a number of years the problem of crosstalk summation in long open-wire lines or cables has been studied by measuring crosstalk, in phase and magnitude, in short lengths. The crosstalk within a short length, between two circuits terminated in their chaiacteristic impedances, would be measured with all important tertiary circuits also approximately terminated. Then the crosstalk between two circuits in adjoining short lengths would be measured with the tertiary circuits terminated. From these coefficient measurements the crosstalk in a long length could be estimated by a process of integration.