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As the analysis of recent events in the East of Ukraine shows, radio communication is the transport basis for the construction of telecommunication networks of special purpose. In view of the above, the subject of study in the article are the special radio communication systems, operating in a complex electronic environment. The purpose of this articleis to develop a mathematical model for the effects of interference on systems of special radio communication. The taskssolved in the course of the study: a formal description of various types of noise that is used to suppress the systems of special radio communication; analytical representation of the probability of a bit error for signals with different types of modulation under the influence of the main types of deliberate disturbances; development of recommendations for increasing the noise immunity of special radio communication systems with different types of signal modulation under the influence of deliberate interference. In the course of the study, the following method swere used: signal theory, radiocommunication theory and the theory of potential impedance protection. In the course of the study, analytical dependencies were obtained that allow us to calculate the probability of a bit error in the effect of intentional interruptions for different types of signal modulation. Conclusions: the proposed mathematical model should be used in the analytical modeling and evaluation of the performance of broadband radio networks of a special purpose taking into account the combined action of the additive white Gaussian noise and structural impediment, algorithms for the formation and processing of signals at the physical level, as well as the properties of the radio channel.

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