Water Linked Modem M64

$ 0,00

The Modem M64 is a two-way half-duplex 64bps acoustic modem with a robust and user-configurable data link, only 30mm in diameter and 112mm in length!

The M64 sets a new market standard with its record-breaking physical size, low power requirement and cost. All this combined with a very useful technical specification, the M64 opens new possibilities for underwater communication in both existing and new areas.

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SKU: Water Linked Modem M64 Category:


Key Specifications:

  • Two-way communication
  • 64 bit per second net data link, both ways
  • Typical latency ~500ms
  • 200 meter range


Key Features:

  • Omnidirectional operation which will keep the data link stable even when the modem is in motion and/or being rotated around its axes.
  • Fully self-contained with no requirements for external computers, top-side controllers or other devices.
  • Packet based protocol with extensive use of error detection to enable a highly robust transmission.
  • Auto sync feature will automatically setup the communication channel with another M64.
  • The integrated status LED makes it easy to confirm that the communication link is established and when data is transferred.
  • Serial 9600 baud UART 3,3V interface makes the M64 easy to integrate with other subsea equipment like sensors, ROVs and AUVs.
  • Easy to use API to transmit/receive packages etc.
  • Can operate simultaneous with Underwater GPS.
  • Extremely small size enabling easy integration in other equipment.
  • Very low power consumption.
  • Highly robust operation, also in areas with acoustic reflections (shallow water, around installations etc.)
  • Standard depth rated to 300 meters. Other depth ratings available on request.

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Additional information

Year of latest version


Acoustics date rate

64 bit per second, both ways


Water Linked

Stiklestadveien 1

7041 Trondheim



Water Linked


3 meter

Data storage

1 MB

Depth rating {m}


Maximum range (sea/fresh water)

200 meter

Beam width

360 deg

Transducer beam shape

360 deg

Area of Application

AUV telemetry, ROV wireless control, Wireless subsea sensors, Research projects and basically any scenario where you need to wirelessly control and monitor subsea equipment

Weight in air [kg]


Operating temperature: max. [°C]


Operating temperature: min. [°C]


Length [m]


Width [m]


Output interface

Serial UART 3, 3V

Operating current

216 mAh at 12V

Power Supply [V]