METHOD FOR HYDROACOUSTIC TELEPHONY OF DIVERS AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2020 - IPC B63C11/20 

FIELD: underwater communication equipment.

SUBSTANCE: invention relates to means of communication of divers, and can be used for communication of divers during operation, both with each other, and with accompanying ship or shore station. For hydroacoustic communication of divers using transceiving stations and in addition ultra-short-wave radio station, coupled with transceiving station of hydroacoustic telephone communication of divers. Receiving and transmitting station for hydroacoustic telephone communication of divers comprises series-connected: microphone, microphone amplifier, modulator, power amplifier, as well as series-connected preamplifier, demodulator, telephone, besides, output of power amplifier is connected to input of transfer-reception switch, and the input of the preamplifier to the output of the transmit-receive switch. Additionally comprises a filter unit with two narrow-band filters at 100 Hz and 200 Hz, an ultra-short-wave radio station, a radio station transmitting-transmitting mode switch, conjugation unit of microphone amplifier and speech synthesizer of electronic unit with telephone and microphone of radio station. Station of hydroacoustic wireless communication of divers is arranged on the tracking vessel into which generator of two tonal electric signals with frequencies of 100 Hz is additionally introduced, corresponding to "transmit" command, and 200 Hz corresponding to "reception" command. Generator input is connected to the switching-mode switch, and the generator output is connected to the input of the reversible hydroacoustic transducer.

EFFECT: longer range of communication, both between divers, and between tracking vessel and divers.

4 cl, 3 dwg