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Engineering a Smarter Planet

Our Products and Technology 2022

CSignum HydroFi Modems overcome the limitations of acoustic, optical and cabled subsea communications with new wireless solutions that automate and reliably transmit dynamic data as needed subsea, and bi-directionally through the water-air boundary. As a result of innovative HydroFi technology, ocean industries can now optimize operations and connect “first mile” subsea data with last mile WiFi signals for an end-to-end digital infrastructure that enables them to respond quickly to change.

At a glance

  • HydroFi performance is unaffected by biofouling, turbidity or environmental noise in the water column
  • Ease of installation and integration with multiple sensor packs, such as multiparameter sonde and ADCP
  • Avoids adverse effects on aquatic life that can be caused by acoustic systems
  • Two-way communication available with first version with multi-point connectivity and relay networks planned in technology roadmap

Product Resources

  • Depth Rating Current Standard: 100m (328ft)
    Future Development: up to 3,000m (9,842 ft)
    Ambient Operating Temperature-20°C (-4°F) to +45°C (113°F)
    DimensionsOD 110mm | Length 500mm (9 cell battery)
    4.4kg (9.7lbs)
    Housing Material
    Housing: Acetal | Antenna ferrite
    Data Interfaces:
    Current Standard: RS-232, RS-485, SDI-12
    Topside Base Station: CSignum custom configuration application
    Topsides Base Station
    CSignum Custom Configuration Application
    Topsides Base Station Input Power
    Supplied Battery or 9V to 28V DC external power
    External Sensor Pack Interface
    8-way Female Subconn
    Antenna Options
    External Ferrite, External Loop
    Battery Capacity
    9 cell battery pack—supplied with alkaline/lithium (Li/SOCl2) or
    rechargeable NiMH

Benefits of HydroFi Wireless Technology