White noise generators are widely used to protect premises against information leakage via vibro-acoustic channels. The acoustic emitter is a key component in such systems.
While TD2300 vibration emitters transmit interference through building structures, the role of the SP1300 acoustic emitter is to fill air voids with a noise signal, thereby preventing the leakage of acoustic information through these cavities.
Generating acoustic noise within air voids and cavities of a room increases the overall level of protection, preventing such types of eavesdropping as:
- Eavesdropping using a contact (wall) stethoscope placed behind a structure adjacent to a cavity within the room (typically from the floor above or behind a suspended ceiling).
- Sound leakage beyond the target room through air cavities (e.g., via ventilation shafts or shared openings for heating pipes), followed by recording using a microphone.
An acoustic emitter connected to a white noise generator creates effective interference against all of the above-mentioned eavesdropping methods.
The DNG-2300 is the recommended generator for the SP1300, as it features a dedicated “SPEAKERS” output with adjustable volume and can simultaneously drive up to 12 SP1300 units.
Technical Specifications
| SP1300 | SP2300 | |
| Power | 3 W | 9 W |
| Impedance | 4 Оm | 12 Оm |
| Weight | 140 g | 420 g |
| Dimensions | 75х65х40 mm | 110х110х80 mm |