ACOUSTIC NOISE GENERATOR "PTICH"

ACOUSTIC NOISE GENERATOR "PTICH"

Acoustic noise generator "PTICH" is designed to protect the voice data from being intercepted by acoustic, vibroacoustic channels. Noise pollution of wallings of protected premises, utilities and related spaces is provided by vibro-, acoustic radiators.

Structure:

• acoustic noise generator unit;
• acoustic radiator for air ducts and door tambour;
  
• vibrational radiator for windows;
  
• vibrotional radiator for walls;
  
• vibrational radiator for communications of water and heating systems;
  
• external microphone;
  
• start and control remote.
  

Technical specifications:

• masking noise frequency range from 175 to 5700 Hz;
  
• irregularity of noise power spectral density - less than 3 db relative to the average noise power spectral density in each octave band with center frequencies of 250, 500, 1000, 2000 Hz;
  
• masking interference of the type "white noise" with the normal distribution of the probability density within each octave band with center frequencies of 250, 500, 1000, 2000 Hz;
  
• sound pressure of masking interferences at a distance of 1 m in frequency range from 175 to 5700 Hz at least 70 dB relative to the level of the reference acoustic pressure (reference acoustic pressure is 20 uPa) with adjustment;
  
• dynamic value buoyancy force of vibration radiators of at least 0.1 N in frequency range from 175 to 5700 Hz;
  
• power supply of the generator is carried out from signale-phase AC mains with rated voltage of 230 V with a deviation from the nominal value of minus 15% to plus 10% and frequency (50 + 1) Hz;
  
• overall dimensions of the generator 86x190x300 mm;
  
• weight of the generator is not more than 4 kg.
  

Designed and manufactured by Gomel branch of the state enterprise "NII TZI"