SHORTWAVE COMMUNICATION AUTOMATIC CONTROL SYSTEM Russian patent published in 2020 - IPC H04B17/00 

FIELD: radio engineering and communication.

SUBSTANCE: invention relates to long-range short-wave radio communication using radio waves reflected from ionosphere. System comprises program-controlled transmitters and program-controlled receivers of channel radio stations, amplitude meter of testing signals, connected by two-way communication with program-controlled receiver and device for determining probabilistic-optimal frequency (POF), an interference meter connected to the POF determining device, a radio channel failure prediction device, which is connected by two-way communication with the POF determining device, with the interference meter and with the command for generating command to the correspondent for anticipatory frequency change, which, in turn, has a connection through an adaptation device with a modem with a program-controlled transmitter, a device for receiving and decoding a command for anticipatory frequency change, associated with a program-controlled receiver and a device for determining POF, terminal, which is connected by two-way communication with MUF (OTF) calculation device and with POF determination device, first radio signal receiver of global satellite navigation systems, connected to a MUF (OTF) calculation device and a POF determining device, according to the invention comprises a second radio signal receiver of global satellite navigation systems, unit for processing a double-frequency signal from the first and second radio signal receivers of global satellite navigation systems, connected to the MUF (OTF) calculation device, a real-time module connected to a MUF (OTF) calculation device and a POF determination device.

EFFECT: technical result consists in expansion of functional capabilities of communication system due to absence of permanent adaptation and control channels with radio stations allocated for them.

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