The Hemisphere VS101/VS111 GPS Compass is a professional GNSS heading and positioning system designed to deliver accurate heading, positioning, and motion data for demanding marine applications. Utilizing Hemisphere’s Crescent® Vector™ II technology, the system combines dual-antenna GPS heading with integrated motion sensors to provide dependable navigation information for offshore survey, construction, dredging, and marine positioning operations.
Designed for vessels requiring precise heading without relying on magnetic compasses, the VS101/VS111 offers a reliable and cost-effective solution for professional marine navigation and survey applications.
The Hemisphere VS101/VS111 is well suited for:
Reliable heading information is essential for hydrographic surveying, offshore construction, dredging, and vessel navigation. The Hemisphere VS101/VS111 calculates true heading directly from GPS signals, eliminating many of the limitations associated with traditional magnetic compasses.
Integrated motion sensors provide heave, pitch, and roll information while helping maintain stable heading performance during temporary GPS interruptions, supporting safe and efficient marine operations.
The VS101/VS111 combines precise heading, positioning, and motion sensing in a flexible system designed for professional marine applications. Its dual-antenna GPS technology delivers dependable navigation performance while simplifying integration with survey and vessel control systems.
The VS101 provides SBAS differential GPS positioning, while the VS111 adds integrated radio beacon differential GPS capability for operators requiring additional positioning options.
Whether supporting hydrographic surveys, dredging projects, offshore construction, or scientific research, the VS101/VS111 provides reliable navigation data that helps improve operational efficiency and confidence.



