Abstract: The invention involves a self-adjusting equalizer configuration which automatically adjusts to the cable length. The equalizer configuration has band limitation for the transmission of digital signals and consists of an equalizing amplifier, a correction filter, and an amplitude control loop with a comparison of actual and nominal values. The object of the invention is to specify a circuit in which the correction filter is not located in the signal path. This object is achieved in such a way that the equalizing amplifier is located in the signal path, and the correction filter is placed in the amplitude control loop so that the output signal of this correction filter represents the actual value for the amplitude control loop.

Abstract: This invention relates to a transmission system for transmitting electrical signals whereby the conductor path consists of several sections of a cable which contain a number of twin conductors and wherein inductances are inserted at fairly great distances in the form of bi-filar chokes at least for the double conductors so as to cause unbalanced to ground currents to be essentially damped.