Acoustic and vibroacoustic noise generators

Vibroacoustic noise system SEL SP-55 
Vibroacoustic noise system SEL SP-55  

 
The system is used for room security to prevent information leakage via acoustic and vibroacoustic channels.

Information leaks out of a room by means of vibrations, which are created in walls, windows or pipes by acoustic signals circulating in any room, and may be intercepted by intruder.

Following accesorries are listed below:
- electromagnetic vibro-transducers SEL SP-55/V (universal), SEL SP-55/VG (for windows);
- acoustic radiators – passive acoustic speakers (8 Ohm).

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Vibroacoustic electromagnetic transducer SEL SP-55/V (Optional transducer for SP-55)
Vibroacoustic electromagnetic transducer SEL SP-55/V

 
SEL SP-55/V is a vibroacoustic electromagnetic transducer. It was designed for operation together with SEL SP-55/V vibroacoustic noise system . Its function is to convert electric signals generated by noise generator into vibrations of walls, pipes and glass windows.

Distinctive features:
- electromagnetic principle of transformation provides high efficiency of the device, its wide frequency band, low level of unwanted acoustic noise, and a small size of the device;
- hermiticity;
- universality: it can be used with any vibroacoustic generators with electromagnetic load.

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Vibroacoustic electromagnetic transducer SEL SP-55/VG (Optional transducer for SP-55)
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SEL SP-55/VG is a vibroacoustic electromagnetic transducer. It was designed for operation together with SEL SP-55/V vibroacoustic noise system . Its function is to convert electric signals generated by noise generator into vibrations of walls and glass windows.

Distinctive features:
- light weight and small dimensions allow convinient mounting on windows.
- electromagnetic principle of transformation provides high efficiency of the device, its wide frequency band, low level of unwanted acoustic noise, and a small size of the device;
- hermiticity;
- universality: it can be used with any vibroacoustic generators with electromagnetic load.

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“CHAOS-N” Acoustic noise system
“CHAOS-4” Acoustic noise system The CHAOS-N system produces high quality noise, which eliminates the possibility of interception (decoding) by modern eavesdropping equipment, when used correctly. The system is characterized by a comfortable type of the speech noise and minimal level of residual noise in users’ garnitures, which enables to significantly increase the quality and serviceability of the system.
 

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LADIYA - acoustic noise generator for cellular phones 
LADIYA - acoustic noise generator for cellular phones   Ladiya is designed for prevention of unauthorized audio information pickup via cell phone. Ladiya looks like as a pencil holder. A cell phone should be places inside this holder.
Ladiya detects when phone transmitter turns on and automatically actuates a built-in noise generator. Anybody who tries listen for conversation in the room will hear only noise.

The device has a sound battery discharge indication.                           

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