Vibroacoustic and acoustic noise interference

The vibroacoustic and acoustic interference system is designed to counteract special unauthorized data retrieval devices that use the room's walling as leak channels. Such devices include:

• electronic and acoustic stethoscopes that are used for tapping through ceilings, floors and walls;
• wired and wireless microphones mounted on the walling or water and heating pipes;
• laser and microwave data retrieval systems that operate through the window openings.

LGS-404 enables protection through generating broadband vibroacoustic noise interference on the potentially hazardous room structures. Vibroacoustic noise interference is created by the generator and transmitted to the structures through the vibration transducers. The Product also supports installation of an acoustic radiator for protection of closed air spaces (air ducts, wells, etc.).

LGS-404 is a two-channel noise generator that supports connection of up to 16 transducers per channel. A total of 32 transducers can be connected to the product. The product can also work with acoustic transducers (dynamic radiators, acoustic systems, loudspeakers etc.). The terminals’ connection pattern depends on the desired protection level and can be represented by the parallel, sequential or combined connection of the required number of transducers.

Following transducers are available for LGS series of vibroacoustic noise generators:

• LVP-2s vibration transducer is designed to generate vibrations in various structural components (walls, ceilings, floors) enclosing the allocated room;
• LVP-2t vibration transducer is designed to generate vibrations in window’s glass and utilities (piping) that go beyond the allocated room;
• LVP-2o is designed to generate vibrations in the glass of the windows enclosing the allocated room.
• Acoustic noise - any 8 Ohm speaker could be used.