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920 Series ATM-925

Product Name:920 Series ATM-925
Product Description:​ATM-920 Series Acoustic Modem for wireless communications in up to 2000m water. Hard-coat anodized aluminum housing, integrated transducer, and internal battery.
Year of initial development:
Year of latest version:
Area of Application:
Field of Use:Acoustic underwater communication and data telemetry in all markets
Languages Supported:
Hardware/software requirements 
HD [GB]:
Operating System:
Processor (CPU):
Dedicated software:
Power supply and communication 
Power Supply :​378 W*Hr internal batteries (can also be powered by external source)
Operating current:
Operating time with internal power supply [hr]:
Output interface:RS-232, -422 or -485, B-Dual serial port enabled
Connector type:MCBH16M connector, 16-pin port cable included
Physical Properties  
Weight in air [kg]:10.8
Weight in water [kg]:3.6
Width [m]:0.0889
Length [m]:0.85
Operating temperature: min. [°C]:
Operating temperature: max. [°C]:
Housing material:
Acoustic properties 
Min. Operating frequency [kHz]:9
Max. Operating frequency [kHz]:27
Transducer beam shape:​Omni directional or directional
Beam width:180
Transmit Source Level (dB re 1mPa @ 1m):
Acoustics date rate:140-15,360 bps
Error rate:Better than 10-7 with high SNR
Operating properties 
Maximum range (sea/fresh water):2-6 km common, greater distances possible (20+ km)
Depth rating {m}:2000
Output data format:
Stand-by mode:
Other specifications 
Data storage:6144 kByte Datalogger standard
Additional capabilities:With over twenty five years of A-Comms experience, and thousands of acoustic modems delivered worldwide, Teledyne Benthos is your established, proven leader in acoustic communications technology
Cables:16-pin dual port serial programming cable included

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Supplier Information
  • Teledyne Marine

  • 1026 North Williamson Blvd.
  • 32114 Daytona Beach
  • Florida
  • United States of America



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