International Scientific Journals
of Scientific Technical Union of Mechanical Engineering "Industry 4.0"

The task of jamming underwater voice communications with and between divers and communications with / between autonomous submarines in port security systems and coastal infrastructure facilities as well as anchored ships plays an important role in operations against asymmetric and military threats. Underwater jammers can be classified as autonomous, with remote control via hydro acoustic channel and with cable control from a shore-based or ship-based base station. While in the first two when receiving hydro acoustic signals above a set threshold level is performed program amplitude-frequency analysis and a decision is made to emit a jamming signal, in coastal / ship performance the decision to activate may be taken by the operator on other signs, which are analyzed in this report.