FIELD: antenna equipment.
SUBSTANCE: invention relates to radio engineering and can be used in communication systems using an antenna near-field field. Underwater communication device includes antenna 1, underwater transceiver 2, surface transceiver 3 with antenna, range switch 4, controller 5 and user interface 6 connected to each other by means of communication.
EFFECT: longer range of communication when using the device in an air-to-water combination environment, as well as higher operational versatility of the device.
1 cl, 1 dwg
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