NPK Morsvyazavtomatica
NPK Morsvyazavtomatica - Marine Electronics
Unicont, Saint-Petersburg


External sound reception system

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NS-201 External Sound Reception System is designed to rebroadcast the received sound signal to the ship cabin and simultaneously visualize the direction from the ship prow towards the sound source.
  • Overall and mounting dimensions
  • Functional scheme
  • Wiring diagram
General characteristics
Overall dimensions 173x133x55 mm
Ingress protection rating IP 22
Storage temperature -55…+75 °С
Operating temperature -25…+55 °С
Weight 1,5 kg
Electrical characteristics
Supply voltage 9,5…36 VDC
Power consumption not more than 10 W
Galvanic isolation +
Reverse polarity protection +
Overvoltage protection + (fuse 2 А)
Operating characteristics
Power of built-in speaker 5 W
Band width 70-900 Hz
Signal to noise ratio >70 dB
Total harmonic distortion (THD+N) <1%

Number of connected microphones - 3.