Sonardyne Gyro USBL: Pre-calibrated USBL and telemetry transceiver

Plug-and-Play Precision for Offshore Survey and DP Operations

Product Overview The Sonardyne Gyro USBL is a groundbreaking "all-in-one" acoustic transceiver that combines a 6th Generation (6G) USBL head with an internal Lodestar AHRS/INS (Attitude and Heading Reference System / Inertial Navigation System).

By integrating the motion sensors directly into the acoustic transceiver housing and pre-calibrating the alignment in the factory, Sonardyne has eliminated the most common source of error in subsea positioning: the mechanical alignment between the vessel's gyro and the acoustic pole. This system allows you to install the unit and begin surveying immediately, offering accuracy that matches or exceeds permanent hull-mounted systems.

Why Choose the Sonardyne Gyro USBL?

• Calibration-Free Deployment: No "Patch Test" or CASIUS calibration is required. This can save 12–24 hours of expensive vessel time during mobilization.
• Eliminates Lever-Arm Errors: Because the motion sensor is co-located with the acoustic array, errors caused by pole bending, ship flexing, and inaccurate offset measurements are physically removed.
• Rapid Mobilization: Ideal for vessels of opportunity, USVs, and temporary "stinger" mounts where traditional calibration is impossible or impractical.
• Class-Leading Accuracy: Achieves a positioning precision of up to 0.04% of slant range (with the 7000+ variant), outperforming standard USBL systems.