SYSTEM FOR VERY LOW-FREQUENCY AND EXTREMELY LOW-FREQUENCY COMMUNICATION WITH DEEP-SUNK AND REMOTE OBJECTS - 1 Russian patent published in 2015 - IPC H04B13/02 

FIELD: radio engineering, communication.

SUBSTANCE: invention relates to very low-frequency (VLF) and extremely low-frequency (ELF) communication with deep-sunk and remote underwater objects. Disclosed system for very low-frequency and extremely low-frequency communication with deep-sunk and remote objects comprises a transmitting system, which consists of: a driving oscillator; a modulator; a control, protection and automation system; a power amplifier; a matching device; an antenna current indicator and a current source, wherein reception and detection of radiation generated by VLF-ELF generators is carried out using a trailing cable antenna, an antenna amplifier and a VLF-ELF receiver on-board the underwater object, characterised by that it further includes: N converters, N earthing devices for the antenna system, which is in the form of an extended straight line consisting of N sections, underground unshielded cable sections, an antenna system with a length l equal to several tens of hundreds of kilometres.

EFFECT: use of the disclosed device provides electromagnetic compatibility of the transmitting antenna with radio-electronic stations and engineering structures and ensures environmental safety of a VLF-ELF radio station.

3 cl, 3 dwg, 1 tbl