Garmin GPS 24xd GPS Antenna w/ Heading Sensor - NMEA 2000

The Garmin GPS 24xd GPS Antenna with Heading Sensor delivers multi-band GNSS positioning and accurate heading data via NMEA 2000 integration, designed for marine navigation, coastal operations, and precision location applications where speed-independent directional awareness is critical. This position receiver and antenna system combines high-sensitivity tracking with fast GPS update rates to maintain lock in challenging signal environments, from open water to canyon-like urban or forested terrain.

Key specifications include water-resistant IPX7 construction for saltwater and freshwater environments, compact 7 x 7 x 7 inch form factor, and expanded GNSS band support for global coverage beyond traditional GPS alone. The heading sensor operates accurately regardless of vessel speed—critical for docking, anchoring, and low-speed maneuvering where magnetic compasses lose effectiveness. NMEA 2000 connectivity integrates seamlessly with marine autopilot systems, chartplotters, and tactical navigation displays. The unit's multi-band receiver tracks signals from GPS, GLONASS, Galileo, and other constellations to provide redundancy and faster acquisition in obstructed conditions.

This antenna assembly is purpose-built for maritime patrol craft, Coast Guard operations, offshore survey work, and any application requiring certified marine-grade positioning with real-time heading output. The combination of precise location and attitude data supports autonomous systems, collision avoidance, and mission-critical navigation planning. Operators working in GPS-denied or multipath-heavy environments benefit from the multi-constellation approach, which statistically improves fix availability compared to single-system receivers.

Garmin's GPS 24xd is recognized in marine and tactical navigation markets as a dependable OEM-grade antenna system. NMEA 2000 standardization ensures compatibility with legacy and modern marine electronics, making retrofit and integration straightforward for existing vessel systems.