A full-scale experiment on the transmission of a short-wave modulated radio signal in a marine environment using spherical antennas at a distance of 470 m is described. The special transceiver equipment is designed in accordance with the results of the generalised electrodynamics theory. An assumption is made about the possibility of creating a high-frequency radio communication channel in the marine environment by means of longitudinal electromagnetic waves.

The results of data processing obtained in the course of full-scale experiments on the transmission of a short-wave radio signal in the marine environment using special ball antennas are presented. The capacity of the radio communication channel in the modulation frequency band is estimated. Statistical estimates of signals and noises are obtained, which make it possible to calculate decision-making thresholds based on the theory of statistical radio engineering. It is concluded that it is possible to create a two-way voice radio communication channel between mobile underwater objects.