Ultra-short baseline acoustic positioning system (USBL)

The Sonardyne ultra-short baseline acoustic positioning systems (USBL) detect and track underwater targets simultaneously down to 1,000 m without having to deploy any other in-water acoustic equipment. These easy to install and use solutions are specifically adapted for critical missions.

Positionnement acoustique sous-marin / USBL Sonardyne et iXblue

/ Our products

Micro Ranger 2 Sonardyne

Mini Ranger 2 Sonardyne

Ranger 2 Sonardyne

Number of targets

10 per sequence

10 simultaneous


Max. range

995 m

4,000 m

>11,000 m


~5 % of the range

~1.3 % of the range

~0.04 % of the range

Type of installation









Nano, WSM6+, RT-6

Nano, WSM6+, RT-6

Nano, WSM6+, RT-6

The Sonardyne ultra-short baseline acoustic positioning system (USBL) ranges can be deployed in all types of environments (rivers, lakes, retention ponds, ports, coastal waters, etc.). They are used for wide range of applications: geophysical surveys, UXO, rescue, underwater inspections, etc.


Discover our services

Our philosophy is to support our clients at all key stages of their projects.


A wide choice of rental sensors and acquisition systems, systems integration services, tailor-made training and technical support. Our rental catalog also includes complete systems, combining sensors of different technologies and from the main world-leading manufacturers.


Choosing Cadden as your project partner allows you to benefit from relevant technical advice, before, during, and after delivery. We accompany you during installation and provide technical support, even after the end of the equipment warranty.


Our trainers have advanced knowledge of all the solutions provided. Thanks to a close partnership with all of our suppliers, our training team will provide you with tailor-made solutions, training adapted to your applications.