When operating a wide variety of devices (for example, computing equipment), PEMIN signals (side electromagnetic radiation and interference) may appear, containing confidential information being processed. These signals can be intercepted using special equipment. Radio interference generators are designed to operate as part of active information protection systems (AIPS), ensuring protection of information from leakage via PEMIN channels by creating a broadband noise electromagnetic interference at the boundary of the controlled zone, which suppresses the side emissions of the protected object.
The "LGSh-901" product is designed for use in order to protect speech information containing information constituting a state secret and other information with limited access, from leakage due to side electromagnetic radiation in sound amplification, warning, and sound accompaniment systems, by forming masking noise-like interference.
The product is intended for use in designated premises up to and including category 2, located on the territory of the Russian Federation, including in government bodies of the Russian Federation, at restricted facilities of the Federal Protective Service and the Federal Security Service of Russia.