Mini-Ranger 2 is Sonardyne’s mid-level Ultra-Short Baseline (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.
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.
Mini-Ranger 2 is a compact, easily installed system ideal for temporary installation on small survey vessels and USVs. It is built around the same market-leading 6G hardware and Wideband 2 digital acoustic technology and software found in the entire Sonardyne family of USBL systems.
The system incorporates HPT 3000, a surface-deployed USBL transceiver optimized for performance in shallow water, high elevation and long lay back operating scenarios, as well as data telemetry. It is typically deployed over the side of a vessel on a pole arrangement or under the hull of a USV. HPT 3000 is connected to the system’s 1U-high Ethernet Serial Hub (ESH) and a PC running the Ranger 2 software application. Fit a transponder to each target you want to track and it is mission-ready.
A wide range of Sonardyne 6G transponders can be used with Mini-Ranger 2, allowing users to select the most appropriate model for each task.
Mini-Ranger 2 is simple to configure and easy to use, even if you have no prior experience of acoustic tracking technology.
Key features:
- Performance without the cost and complexity of a deep water USBL solution
- Expected system accuracy is 1.3% of slant range
- Designed for nearshore naval operations; UXO surveys, search and recovery, structure inspection
- Portable and quick to mobilize
- 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
| Feature | Specification |
| Design | Easy to transport, hardware comes in one box |
| Configurable for manned or unmanned vessel operations | |
| Quick to mobilize, 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 optimized for high elevation tracking |
