PURPOSE AND COMPOSITION

Transmission to aqueous medium of the speech and tone-pulse signals for direct aural perception by divers as well as warning of divers intruders of unauthorized intrusion. The loudspeaker contains the underwater transmitter and control unit. In addition, the loudspeaker can be completed with the uninterrupted power supply unit.

TECHNICAL DATA

Range of aural perception of speech signals by diver (depending on type of equipment used by diver), not less than, m	600-650
Average acoustic pressure along beam pattern axis, kPa • m	10-12
Width of beam pattern, not less than, degree	120
Transmitter sinking depth, not more than, m	20
Electric power supply – 220 V, 50 Hz, power consumption, not more than, kW	1
Uninterrupted power supply unit ensures operation of loudspeaker during, not less than, h	0.5

 

MASS-DIMENSIONAL CHARACTERISTICS (NOT MORE THAN)

Transmitter	overall dimensions, mm	ø190х320
	mass, kg	19
Control unit	overall dimensions, mm	358х281х156
	mass, kg	14
Uninterrupted power supply unit	overall dimensions, mm	358х281х156
	mass, kg	14