Instruments and Systems: Monitoring, Control, and Diagnostics Annotation << Back Functional Model of the Process of Interception of Electrical Signals Modulated by Informative Acoustic Signals Due to Acoustoelectric Transformations in Radio-Electronic Devices of the Intelligence Object M.P. SYCHEV, E.V. ZELENTSOVA, V.O. KRYLOV, E.A. MANKOV, A.P. SIDELNIKOV This article is a continuation of a series of articles devoted to the functional representation of information leakage threats through parametric channels. It describes a functional model of the second stage of the implementation of such threats – the stage of interception of electrical signals modulated by informative acoustic signals due to acoustoelectric transformations in radioelectronic devices (RED) of the reconnaissance object, the lines of which have an outlet beyond the controlled zone (CZ). The procedure of functional structuring of this stage to the level of signs of the functions performed by the violator is given. Keywords: functional modeling, information leakage through parametric channels, interception of electrical signals modulated by informative acoustic signals due to acoustoelectric transformations in the RED of the exploration object, the lines of which have an outlet beyond the short circuit. DOI: 10.25791/pribor.6.2022.1344 Pp. 33-37.