MRT Shallow Water USBL Transceiver

    Easy to install and set up
    USBL design optimised for short range omni-directional performance
    Internal magnetic compass for instantaneous and calibration free motion compensation.
    Built in health checks including array and electronics diagnostics
    Ethernet connectivity using an Ethernet Serial Hub (ESH)
    Robotic Pack option for AUV tracking and control

    Lightweight, portable and easy-to-use

    The Micro-Ranger Transceiver (MRT) is an extremely small and light, Ethernet interfaced shallow water USBL transceiver, for use with our 6G range of transponders for tracking divers and small underwater drones in lakes, rivers and coastal waters.

    This smaller USBL transceiver offers significant operational benefits due to its small, portable size. The MRT is designed to run from Power over Ethernet (PoE), however it is also compatible with ou Ethernet Serial Hub (ESH) which allows it to be used with the Micro-Ranger 2 system.

    The MRT uses an integral AHRS sensor which provides pitch, roll and heading data that automatically compensates for the dynamic motion of the vessel, removing the need for an external sensor and pre-use calibration. It’s multi-element processing enables transponders to be accurately positioned down to 995 metres water depth.

    When used as part of a complete Micro-Ranger 2 USBL system, all the benefits of the feature rich Ranger 2 software are available, such as output telegrams, positioning displays and diagnostic tools.

    Why MRT?


    • Medium frequency (19-34 kHz) band
    • Up to 995 metres operating range


    • 25 meters depth rating
    • Better than 15 mm accuracy
    • Over 200 degrees of acoustic coverage


    • 177 x 106 mm (excluding connector)
    • Stainless steel 316, PVC and polyurethane construction
    • 1.84 kgs (0.99 kgs in water)


    • What’s in the box: included with Micro-Ranger 2 USBL system
    • Warranty: 1 year return to Sonardyne service centre
    • ITAR Controlled: No
    • UK Export License: Not required

    More about this product

    MRT Specifications and Datasheet

    Feature Type 8243
    Operational Frequency MF (19–34 kHz)
    Operating Range Up to 995 metres
    Depth Rating 25 metres
    Acoustic Coverage Greater than 200º
    Range Accuracy* Better than 15 mm
    Angular Accuracy* ±3º
    Transmit Source Level (re 1 uPa @ 1 m) 184 dB 
    Electrical 48 V dc (±10%) typical 1.5 W, Max 25.5 W 
    Communication Ethernet 100 Mbps
    Operating Temperature -5 to 40ºC
    Storage Temperature  -20 to 55ºC
    Mechanical Construction Stainless steel 316, PVC and polyurethane
    Dimensions; Height x Diameter  177 x 106 mm (excluding connector)
    Weight in Air/Water 1.84/0.99 kg
    *Note: The absolute accuracy of the system is dependent upon the quality of internal attitude and heading sensor which can be influenced by outside sources such as magnetic material, beacon source level, vessel noise, water depth, mechanical rigidity of the transceiver deployment, sound velocity knowledge and proper calibration of the system.


    To request a manual simply tick the box next to the manual you require and then press the Request Form button. You will then be able to request addition manuals for other products and your request will be emailed to our Customer Support Team who will reply to your enquiry. Alternatively please contact your local office who will be more than happy to help.

    User Manual - MRT Transceiver

    • Manuals Request


      How do I deploy my MRT?

      Here’s our top-tips on how to deploy your Micro-Ranger Transceiver quickly and easily.

      Please take care when working near water, and make sure all bolts are securely tightened before deployment.

      Download the adapter plate drawing here:… *Disclaimer* Sonardyne accepts no responsibility for failures of adapter plates not manufactured by Sonardyne

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