Sonardyne International Ltd

- Model 6 - AUV Tracking & Communications Instrument

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AvTrak 6 is an acoustic navigation and communications instrument designed to form part of an integrated AUV tracking and navigation system. It combines the functions of transponder, transceiver and telemetry link in one low power unit that has been designed to meet the requirements of a wide variety of AUV mission scenarios and vehicle types.

The unit operates in our Wideband®2. It is also fully compatible with our family of survey quality LBL and USBL navigation systems.
AvTrak 6 has a comprehensive yet easy to use command language that allows the AUV to undertake simultaneous LBL ranging, USBL tracking via a surface vessel and robust telemetry for AUV to vessel and AUV to AUV communications.

This capability can be used to provide absolute position reference data to periodically update the AUV’s inertial navigation system.

The instrument is available in a variety of configurations. A popular option is an omni-directional unit with integral or remote transducer options. Another popular option is an integral directional transducer option. This flexible configuration is intended both to assist the AUV manufacturer with mounting of the instrument within the AUV and to ensure the highest levels of acoustic performance. A high power (HP) version of AvTrak 6 is also available.

The AvTrak 6 supports a Sonardyne Messaging Service (SMS) that allows custom payloads to be transferred to and from any 6G® transceiver. This allows for vehicle configuration or USBL position fixes to be acoustically sent to the vehicle or for status messages to be retrieved from the topside system. There is an option to include a HPR400 Series tone for compatibility with a variety of other acoustic systems and transponders and another option to enable a RSPSK Modem upgrade for large volume data transfers.

A number of acoustically controlled digital I/O lines are also provided for custom use, typical applications includes abort and emergency ballast jettison control

What you need to know
  • Works with 12 and 21 inch class AUVs 
  • 3-in-1 instrument; USBL transponder, LBL transceiver and modem
  • Low power and easy to install
  • Emergency relocation mode
  • Depth options to 7,000 metres
  • OEM options available

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