Key Features and Functions
• Multi-frequency GNSS support: Simultaneously receives GPS, GLONASS, Galileo, and BeiDou satellites, making it suitable for use in obscured environments.
• High-precision positioning: Achieves accuracy within 1 meter (typically approximately 88%) when used with compatible devices.
• Fast update rate: Provides up to 10 position, time, and velocity updates per second, ensuring smooth chart display and fast system responsiveness.
• Built-in magnetic compass (heading sensor): Provides heading data with an accuracy of approximately ±3° at all speeds, facilitating stable radar overlays and AIS displays.
• Waterproof and durable: With an IPX7 waterproof rating, it is suitable for long-term use in marine environments. ________________________________________
Package Contents and Installation
Includes:
• GPS 24xd unit (black or white)
• Pole mount, surface mount, and underdeck mount brackets
• 6-meter NMEA 2000 cable (Micro-C) with T-connector
• Instructions and Warranty Information
Installation Recommendations:
• Mount on a flat surface or a 1-inch diameter pole with good visibility.
• Avoid strong magnets or metal interference sources.
• Magnetic heading calibration is required after installation: Garmin instruments can be calibrated using the menu menu, while other brands require manual calibration using the basic method.
________________________________________ Software and Compatibility
• The latest firmware version is 3.00 (released in October 2024), which fixes GNSS satellite network conflicts and adds support for Attitude PGN.
• Compatible with navigation systems, autopilot systems, and instruments that support NMEA 2000. • Garmin devices allow full heading correction via the menu. Third-party devices only offer basic correction.
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Advantages and Considerations
Advantages:
• High-precision GNSS position and low-speed heading information.
• 10Hz update rate for fast response.
• Supports various mounting methods and plug-and-play NMEA 2000 networking.
Notes:
• Heading accuracy is ±3°, which is suitable for navigation and overlay display, but not recommended for high-precision autopilot control.
• Requires a NMEA 2000 network system.
• While slightly more expensive than a pure GNSS antenna, it offers powerful features and a good value.
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Summary
The Garmin GPS 24xd NMEA 2000 is an excellent marine GPS antenna that supports multi-frequency GNSS and magnetic compass heading. Whether displaying radar, AIS overlays, or vessel positions, it provides more stable and accurate information. With flexible installation options and NMEA 2000 compatibility, it's recommended for boat owners who require advanced navigation features.
