Measurement Results of Natural and Man-made ELF-VLF Electromagnetic Fields

A complex for recording ELF-VLF of the Earth's electromagnetic field has been developed. Tests were carried out in the polar regions of Russia (the village of Tiksi and the Novaya Zemlya archipelago) and in the Baikal rift system (the village of Khurumsha). There are obtained 6th-8th modes of the Schumann resonances, a VLF signal of the ZEVS radio station, and an industrial frequency of 60 Hz. The global nature of radio wave propagation in the Earth-ionosphere waveguide allows them to be used for sounding and monitoring many natural phenomena.