FIELD: information protection.
SUBSTANCE: invention relates to the field of protection of confidential information; it can be used for protection of acoustic information in a room to be protected. A terminal device of a system for protection of acoustic information includes a cavity for accommodation of a multiturn coil, a multiturn coil with a cylindrical composite core with M-shaped cross-section, connected to a diffusor or a vibration emitter, a case, and conductors connected to the coil, supplying a protective electrical signal. On the case of the terminal device, band annular coating is placed, which is an amorphous band of 71KHCP cobalt-based alloy, absorbing electromagnetic energy, rings of which are parallel to turns of the coil.
EFFECT: increase in the efficiency of information protection.
1 cl, 4 dwg
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