In this paper we analyze if it is possible to create high-speed hydroacoustic communication systems with mobile underwater objects. We investigate the methods to transmit information in an aquatic environment, as well as the features and characteristics of hydroacoustic channels. A hydroacoustic channel model is presented; the model simulates how an aquatic environment affects transmitted signals. We consider the issues of how to model and practically implement a hydroacoustic high-speed communication system. Hydroacoustic channels are significantly inferior in performance to radio frequency terrestrial channels, so it is a very complex and urgent task to study how to transmit high-volume traffic in an aquatic environment. We assess if it is possible to use the medium frequency range of acoustic waves to transmit high-speed traffic. For this purpose, we take a typical communication channel to communicate with a remote-controlled autonomous uninhabited ultralight class vehicle in an aquatic environment. We determine and calculate the main parameters of the hydroacoustic channel and the transmitted signal. We use Matlab/Simulink software to model a high-speed hydroacoustic channel in the environment.