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Mini-Ranger 2 USBL

Underwater tracking and communications system

Engineered for: AUV, Diver, ROV, Towfish, USV, Vessel

Mini-Ranger 2 is our mid-level USBL target tracking system that’s also able to support data USV harvesting from seabed-deployed instruments or communicating with underwater assets such as AUVs.


At a glance

Performance without the cost and complexity of a deep water USBL solution

Perfect for nearshore operations; UXO surveys, search and recovery, structure inspection

Portable and quick to mobilise; a great choice for small survey vessels, moored barges and uncrewed vessels

995 m operating range; extendable to 4,000 m (requires export license)

Optional Marine Robotics software feature pack provides command and control of AUVs

Works with a wide range of 6G transponders including RT 6 acoustic releases

USBL tracking without the complexity

Want to know more?

HPT 3000 transceiver; suitable for over-the-side deployment on a pole or USV

Mini-Ranger 2 is built on 6G hardware with equipment that's easy to set up

Acoustic coverage is optimised for high elevation, wide-area tracking

All Ranger 2 USBLs use the same common software that's simple and quick to learn

Software options include extended range and marine robotics pack

Benefits of Mini Ranger 2 USBL for your operations

Targets

Diver, ROV, towfish or USV. Whatever you want to track, it adds survey-grade precision and accuracy to your operations.

Communications

It offers more than just tracking - Mini Ranger 2 opens up the possibilities for your marine robotics fleet to communicate, command and control them.

Environments

Shallow to deep, even at high elevations, Mini-Ranger 2 provides flexibility to your underwater operations without compromising performance.

Overview

With a 995 m operating range, extendable to 4,000 m, Mini-Ranger 2 can track up to 10 underwater targets simultaneously, including divers, towed instruments, ROVs and AUVs.

Opt for the Marine Robotics software pack and it will even communicate with these targets – enabling for example, data harvesting from seafloor instrument packages using an uncrewed surface vessel (USV).

Expected system accuracy is 1.3% of slant range. Need higher precision or looking for a USBL that you can use as a dynamic positioning reference? Then take a look at our top performing USBL, Ranger 2 Standard.

Mini-Ranger 2 is a compact, easily installed system, so it’s the ideal choice for temporary installation on small survey vessels, as well as uncrewed surface vessels (USVs). It’s built around the same market-leading 6G hardware and Wideband 2 digital acoustic technology you’ll find in our entire family of USBL systems – even the software is the same.

HPT 3000
At the heart of the system is HPT 3000, a highly capable surface-deployed USBL transceiver which is optimised for performance in shallow water, high elevation and long lay back operating scenarios, as well data telemetry. It’s typically deployed over the side of a vessel on a simple pole arrangement or under the hull of a USV. If the system is going to be permanently installed, and one is available so, a through-hull deployment setup is a great option.

HPT 3000 is connected to the system’s 1U-high Ethernet Serial Hub (ESH) and your PC running the Ranger 2 software application. Fit a transponder to each target you want to track and you’re ready to get your operation underway. Mini-Ranger 2 is simple to configure and easy to use, even if you have no prior experience of acoustic tracking technology.

Transponder options
A wide range of Sonardyne 6G transponders can be used with Mini-Ranger 2, allowing you to select the most appropriate model for each task. If you’re tracking divers, man-portable AUVs and micro-class ROVs, Nano is a popular choice. When tracking larger targets such as a towfish, a crane wire lowering a structure, or an observation-class ROV, WSM 6+ will meet your requirements.

And if you’re looking for a combined tracking and acoustic release transponder, RT 6 is now available. It allows you to deploy, track and recover seafloor equipment, all using the same instrument.

Why invest

Design

  • Powerful features for commercial users

  • Easy to transport, hardware comes in one shipping box

  • Configurable for manned or uncrewed vessel operations

  • Quick to mobilise, configure and uninstall

  • Shares common platform with other Sonardyne USBLs

Performance

  • 0.2% positioning repeatability using external MRU

  • 1.3% positioning repeatability using internal MRU

  • Up 10 targets tracked, simultaneously

  • 995 m tracking range; extendable to 4,000 m

  • 3 Hz position update rate

Acoustics

  • MF frequency (19–34 kHz)

  • Supports Sonardyne Messaging Service for data exchange

  • Sonardyne Wideband 2 digital acoustic for reliable performance in both shallow and deep environments

  • Transceiver optimised for high elevation tracking in quite environments

Ownership

  • What’s in the box: HPT 3000, SIU, deck cables, software, manual

  • Warranty: 1 year return to Sonardyne service centre

  • ITAR Controlled: No

  • UK Export License: Not required for 995 m version. Required for extended range (4,000 m) version

Mini-Ranger 2 USBL case studies

Resources

Feature Specification
Design Powerful features for commercial users
Easy to transport, hardware comes in one box
Configurable for manned or unmanned vessel operations
Quick to mobilise, configure and uninstall
Shares common platform with other Sonardyne USBLs
Performance 0.2% positioning repeatability using external MRU
1.3% positioning repeatability using internal MRU
Up 10 targets tracked, simultaneously
995 m tracking range; extendable to 4,000 m
3 Hz position update rate
Acoustics MF frequency (19–34 kHz)
Sonardyne Wideband 2 digital acoustics for reliable performance in both shallow and deep environments
Supports Sonardyne Messaging Service for data exchange
Transceiver optimised for high elevation tracking

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USBL tracking without the complexity