Generation of ELF–ULF Radiation Using Industrial Overhead Power Lines in the FENICS-2019 Experiment

In the FENICS experiments, performed in 2007, 2009, 2014, and 2019 under the guidance of A.A. Zhamaletdinov, unique deep electromagnetic sounding data were obtained using grounded sections of industrial overhead power lines (OHPL) at distances from 180 to 840 km from the center of the supply line to the measuring installation. At the 2014 and 2019 stages, the components of the electromagnetic field and current strength in the source were recorded with VMTU-10 (VEGA LLC, St. Petersburg) measuring equipment, which allowed synchronous processing of measurement data with GPS referencing. Unlike the previous stages, in 2019, L-403 (Murmansk–Nikel) was used as a source with a sublatitudinal direction, which differs in a number of parameters from L-401, previously used for these purposes. The paper describes the main features of the generation of ELF–ULF radiation for geophysical research using industrial power lines.