AUTOMATED MOBILE COMPLEX "SHUM-3M"

Automated mobile complex "Shum-3M" (The complex "Sum-3M") is designed for instrumental monitiring of the affectiveness of the speech information protection against leaking via acoustic and vibroacoustic channels (measurement of noise and vibration properties of structures and elements of the infrastructure of building and structures, testing the effectiveness of acoustic systems and vibro-acoustic masking).

Measuring channel of the complex is built on the basis of the modern portable noisee level meter-and-spectrum analyzer "Octava-110A".

 Structure of the complex "Shum-3M":

• noise level meter-spectrum analyzer with a stand;
  
• test signal remote transmission device;
  
• speaker system for generating a test signal;
  
• special software.
  

Main technical specifications and parameters:

• frequency measuring range from 175 Hz to 5700 Hz;
• sound pressure level of the test signal from the speaker system is not less than 90 dB, in the octave bands froms 175 Hz to 5700 Hz;
  
• formation of the test signal in the octave bands from 175 to 5700 Hz with centre frequencies of 250, 500, 1000, 2000, 4000 Hz;
  
• processing and displaying the results in octave (third octave) frequency bands;
  
• noise level meter-and-spectrum analyzer corresponds class 1 under GOST17187;
  
• automatic calibration of the volum level of test signals;
  
• test signal generation modes: broadband white noise, sine signal;
  
• automated calculation of the parameters of information security.
  

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