Arrangement for wireless information transmission by means of electromagnetic waves at an extremely low frequency

摘要

For wireless information transmission by means of electromagnetic waves at an extremely low frequency, it is proposed to produce a periodically alternating ring current on a horizontal, large-mesh conductor loop. The already existing high-voltage supply network of the Federal Railway system is advantageously used to form the conductor loop, in that a plurality of balanced high-voltage lines, which connect the substations of the railway, are combined to form a ring and have an unbalanced ring current applied to them.