Sonardyne DPT 6+: USBL transponder

The Industry Standard for Reliable Dynamic Positioning and Seabed Referencing

Product Overview The Sonardyne DPT 6+ is a high-performance acoustic transponder specifically engineered for use as a seabed reference point for Dynamically Positioned (DP) vessels. Built on Sonardyne’s 6G® (Sixth Generation) platform, the DPT 6+ is the "big brother" to the tracking-focused WSM series, offering significantly longer battery life and higher acoustic power for permanent or long-term deployments.

Utilizing Wideband® 2 digital signal technology, the DPT 6+ delivers high-integrity positioning in the most challenging conditions—including extreme thruster noise and multi-path interference in deep-water environments. Whether used for rig positioning, drill string monitoring, or as a stationary reference for USBL and LUSBL systems, the DPT 6+ provides the stability required to de-risk subsea operations.

Why Choose the Sonardyne DPT 6+?

• Optimized for DP Reliability: Designed to work seamlessly with Ranger 2 and Marksman LUSBL systems to provide a stable, repeatable position reference for vessel station-keeping.
• Long-Term Deployment: Available in Standard, Midi, and Maxi lengths to offer the perfect balance between size and battery endurance (up to several years in standby).
• Wideband 2 Performance: Supports over 500 unique digital channels, allowing for massive Simultaneous Operations (SIMOPS) without acoustic signal collision.
• Integrated Release Mechanism: Every DPT 6+ features a highly reliable acoustic release as standard, allowing it to be deployed in a flotation collar and recovered to the surface without ROV assistance.
• Advanced Telemetry: Beyond positioning, it acts as a robust subsea modem for retrieving sensor data or remotely monitoring riser and BOP angles.