Garmin GPS 24xd GPS Antenna and Heading Sensor — Black
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Garmin GPS 24xd GPS Antenna and Heading Sensor
The GPS 24xd is a high-sensitivity multi-constellation GPS/GNSS antenna and rate-compensated heading sensor in a single compact unit. It provides precise position data and accurate vessel heading information to compatible chartplotters and autopilots via NMEA 2000 — making it a significant upgrade over a basic GPS antenna for vessels where reliable heading data is needed for autopilot performance, radar overlay, or chart orientation.
Key Features
- Multi-Constellation GNSS — Receives GPS, GLONASS, and Galileo satellite signals for fast acquisition and reliable positioning in challenging sky-view conditions
- Rate-Compensated Heading Sensor — Provides accurate vessel heading data via NMEA 2000; improves autopilot performance and enables accurate radar overlay and chart orientation on compatible displays
- NMEA 2000 Output — Single NMEA 2000 connection delivers both position and heading data to the vessel’s network; no separate heading sensor required
- High-Sensitivity Receiver — Fast satellite acquisition and reliable tracking in harbours, under bridges, and in areas with partial sky obstruction
- Compact Low-Profile Design — Discreet black housing suitable for deck, arch, or hardtop mounting
- Garmin Marine Network Compatible — Works seamlessly with Garmin chartplotters and autopilots as a position and heading source
Parts Desk Insights
Best Use Case: The GPS 24xd is the ideal external GPS and heading sensor for vessels running a Garmin chartplotter or autopilot where the display is mounted below decks, inside a helm console, or in any location with poor sky view that limits the internal GPS receiver’s performance. The combined GPS and heading output over a single NMEA 2000 connection simplifies installation compared to running separate GPS and heading sensor units. Particularly valuable for autopilot installations — the rate-compensated heading data significantly improves autopilot steering accuracy compared to GPS-derived heading alone. Also recommended for vessels using radar overlay on a chartplotter, where accurate heading is essential for correct radar image alignment.
Installation Notes: Mounts on deck, arch, hardtop, or mast with a clear view of the sky. Connects to the vessel’s NMEA 2000 backbone via a standard NMEA 2000 drop cable (sold separately). No separate power cable required — powered via NMEA 2000 backbone. Orient the antenna fore-aft as marked for accurate heading output.
Compatibility: NMEA 2000 compatible. Works with Garmin GPSMAP and Axiom chartplotters, GHP autopilots, and any NMEA 2000 device that accepts GPS position (PGN 129029) and heading (PGN 127250) data. Confirm NMEA 2000 backbone power and drop cable requirements before installation.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.