ULTRA-LOW FREQUENCY AND ULTRA-RARE-FREQUENCY COMMUNICATION SYSTEM WITH DEEP-LOADED AND REMOTE OBJECTS-8 Russian patent published in 2019 - IPC G01V3/02 H04B13/02 

FIELD: electricity.

SUBSTANCE: invention objective is to provide electromagnetic compatibility of a communication system with RES, power transmission lines, cable communication lines, engineering facilities and creation of environmental safety conditions in the area where the antenna system of the radio station is located. Essence: communication system of ultralow-frequency and ultra-rare-frequency ranges with deep-loaded and remote objects-8 contains transmitting system consisting of central branch and additional five branches, serially connected to central branch through branch switch, information unit of control system of transmitting ULF-URF antenna that contains five data transmission channels, besides, in each data transmission channel two generators tuned to two frequencies, thus, information transmission is carried out by two-frequency method: in first transmission channel two generators operate one on frequency ƒ₁, second – ƒ₂; in second channel on ƒ₃ and ƒ₄; in third channel on ƒ₅, and ƒ₆; in fourth channel on ƒ₇ and ƒ₈; in fifth channel on ƒ₉ and ƒ₁₀; ten modulators and a spectrum former, the branch switch comprises a five-channel converter and five five-contact switches: Sw.1, Sw.2, Sw.3, Sw.4 and Sw.5; five-channel converter comprising 4_N – last section of antenna system of central branch, source of electric energy, information transformer, amplifier, unit of narrow-band filters, information channels generator; spectrum generators of five channels: first, second, third, fourth and fifth; preliminary amplifiers of five channels: first, second, third, fourth and fifth; power amplifiers of five channels: first, second, third, fourth and fifth; power regulator at power amplifier input; power transformers in five channels: first, second, third, fourth and fifth; current transformer; I_A is current in N section 4_N central branch of antenna length of 20 km; I^N_A is current in first section 4₁₁÷4₅₁ any section of additional five antenna branches with length of 20 km; I_A-I^N_A is difference of currents between current in last section 4_N central branch and current in first section 4_11÷4₅₁ any additional branch of antenna system.

EFFECT: use of the device enables solving the problem of controlling transmission of information to given depth of immersion of objects and increasing the speed of data transmission based on the creation of five double-frequency channels for transmitting data by a transmitting antenna for transmitting information to immersed and remote objects.

14 cl, 15 dwg