The system of vibroacoustic and acoustic interference is designed to counteract special means of unauthorized information retrieval that use enclosing structures of the premises as a leakage channel. These include:
Electronic or acoustic stethoscopes for listening through ceilings, floors and walls
Wired or radio microphones installed on enclosing structures or water and heating pipelines;
Laser or microwave systems for retrieving information through window openings of premises.
The LGSh-301 acoustic noise generator is designed to protect speech information from interception via direct acoustic, vibroacoustic and optical acoustic channels. The product allows you to protect speech information in a regular room equipped with a 220 V network.
The operating principle of the LGSh-301 is based on the generation of "white noise" in the acoustic frequency range and, as a result, an increase in the ratio of acoustic interference to speech signal.
The generator protects a space of up to 50 cubic meters. If you work in a large room, you must use several generators.
It is recommended to install acoustic noise generators in close proximity to the possible location of the interception system. In practice, generators are installed in door and window openings, in ventilation ducts and air ducts, near utility lines.
Operating frequency range 180-11300 Hz Power consumption 10 W Power supply 220 V, 50 Hz, 5 V Overall dimensions of the generator unit 66x66x20 mm Weight 0.2 kg