Mini-Ranger 2 USBL
Compact USBL Tracking System with HPT 3000 Transceiver
Description
Mini-Ranger 2 is a compact Sonardyne USBL system for temporary installation on small survey vessels and uncrewed surface vessels (USVs). It tracks up to 10 underwater targets simultaneously, including divers, towed instruments, ROVs and AUVs, with a tracking range of 995 m that can be extended to 4,000 m.
The system is built around the HPT 3000 surface-deployed USBL transceiver, which is optimised for shallow water, high elevation and long layback operations, as well as data telemetry. HPT 3000 is deployed over the side on a pole or under the hull of a USV, and a through-hull setup is possible for permanent installation. It connects to a 1U-high Ethernet Serial Hub (ESH) and a PC running the Ranger 2 software.
Positioning repeatability is 0.2 % with an external MRU and 1.3 % with the internal MRU, with position updates at up to 3 Hz. The system uses MF frequencies (20–34 kHz) with Sonardyne 6G hardware and Wideband 2 digital acoustics, and supports the Sonardyne Messaging Service for data exchange. As standard, HPT 3000 can harvest data from seafloor instruments.
A range of Sonardyne 6G transponders can be used, such as Nano, WSM 6+ and RT 6. The optional Marine Robotics software pack lets the system communicate with subsea robotic platforms. The delivery includes the HPT 3000, ESH, deck cables, software and manual in one shipping box.