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S2CR 15/27 USBL

S2CR 15/27 USBL
S2CR 15/27
S2CR 15/27 USBL Directivity Pattern

S2CR 15/27 USBL Underwater Acoustic USBL System

S2CR 15/27 USBL is a depth-rated device for long range data transmissions and USBL positioning, providing data transfer rates up to 9.2 kbit/s over a 6000 m range.

Low power consumption makes it ideal for long-term deployment.

Its wide-angle transducer beam pattern (120 deg) is useful for numerous applications.


  • Medium- and long-range operations
  • Transceiver for USBL positioning
  • Data transmissions and accurate positioning in vertical or slant channels
  • Underwater observatories
  • Underwater acoustic sensor networks

Data Sheet

Underwater Acoustic USBL System S2CR 15/27 USBL Product Information, pdf


Operating Depth 200 m, Delrin housing
1000 m, Aluminium Alloy housing
2000 m, Stainless Steel housing
6000 m, Titanium housing
Operating Range 6000 m (8000 m in good conditions)
Frequency Band 15 - 27 kHz
Transducer Beam Pattern wide-angle, 120 deg
Slant Range Accuracy[1] 0.01 m
Bearing Resolution 0.1 deg
Nominal SNR 10 dB
Acoustic Connection up to 9,2 kbit/s
Bit Error Rate less than 10-10
Internal Data Buffer 1 MB, configurable
Host Interface[2]  Ethernet, RS-232 (RS-485/422 optional)
Interface Connector up to 2 SubConn® Metal Shell 1500 Series
Power Consumption Stand-by Mode: 2.5 mW
Listen Mode[3]: 5 - 285 mW
Receive Mode[4]: 1.4 W
Transmit Mode:
2,5 W, 1500 m range
5 W, 3000 m range
15 W, 6000 m range
65 W, max. available 
Power Supply[5] External 24 VDC (12 VDC optional) or
Internal rechargeable battery (optional)
Dimensions[6] Housing ø113 mm x220 mm
USBL Sensor ø175 mm x145 mm
Total length 365 mm
Weight, dry/wet Delrin: 8500/4230 g
Aluminium Alloy: 9800/5300 g
Stainless Steel: 13640/9540 g
Titanium: 13420/8920 g

[1] Slant range estimation is based on the measured time delay, slant range accuracy depends on sound velocity profile, refraction and signal-to-noise ratio.

[2] See the S2CR 15/27 USBL Product Information for available standard interface combinations.

[3] User-configurable Listen Mode is only available with a Wake-Up module installed. Power consumption in Listen Mode depends on Listen Mode settings.

[4] Power consumption for the RS-232 interface option. Add 500 mW for the Ethernet interface option.

[5] Contact EvoLogics for more information on power supply options.

[6] Dimensions of a Delrin housing, other builds are slightly larger.

Specifications subject to change without notice.