Sonardyne Launches Portable Subsea Tracking System Sonardyne’s updated Micro-Ranger 2 USBL system contains everything needed to track divers, ROVS and AUVs in a rugged case small enough to operate-anywhere, from anything. Photo by Tom Acton/Sonardyne. Offshore technology and survey company Sonardyne has launched a new, portable configuration of its shallow water Ultra-Short BaseLine (USBL) system Micro-Ranger 2. "Everything needed to start tracking divers, remotely operated vehicles, autonomous underwater vehicles or any other subsea targets is contained in a single, IP67-rated ruggedized case small enough to operate-anywhere, from anything," Sonardyne said. The one-box USBL solution is able to track up to 10 targets out to 995 m. Inside the case is a Micro-Ranger Transceiver (MRT) with 10 m of cable, a GNSS antenna with 5 m of cable, and two Nano transponders and a command hub. A built-in battery provides more than 10 hours of continuous use, enough for a full day of activity out on the water. The case can also accept external power from a boat or shore supply, Sonardyne says.