{"product_id":"garmin-gps-24xd-gps-antenna-heading-sensor-black","title":"Garmin GPS 24xd GPS Antenna and Heading Sensor — Black","description":"\u003ch2\u003eGarmin GPS 24xd GPS Antenna and Heading Sensor\u003c\/h2\u003e\u003cp\u003eThe 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.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Constellation GNSS\u003c\/strong\u003e — Receives GPS, GLONASS, and Galileo satellite signals for fast acquisition and reliable positioning in challenging sky-view conditions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRate-Compensated Heading Sensor\u003c\/strong\u003e — Provides accurate vessel heading data via NMEA 2000; improves autopilot performance and enables accurate radar overlay and chart orientation on compatible displays\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNMEA 2000 Output\u003c\/strong\u003e — Single NMEA 2000 connection delivers both position and heading data to the vessel’s network; no separate heading sensor required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Sensitivity Receiver\u003c\/strong\u003e — Fast satellite acquisition and reliable tracking in harbours, under bridges, and in areas with partial sky obstruction\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Low-Profile Design\u003c\/strong\u003e — Discreet black housing suitable for deck, arch, or hardtop mounting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGarmin Marine Network Compatible\u003c\/strong\u003e — Works seamlessly with Garmin chartplotters and autopilots as a position and heading source\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eBest Use Case:\u003c\/strong\u003e 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.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation Notes:\u003c\/strong\u003e 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.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e 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.\u003c\/p\u003e","brand":"WEST","offers":[{"title":"Default Title","offer_id":43943847067684,"sku":"GAR-010-02316-20","price":477.94,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/456e87ab-f238-4add-a313-5b2bec46eff3.png?v=1784144902","url":"https:\/\/marisolmarine.com\/products\/garmin-gps-24xd-gps-antenna-heading-sensor-black","provider":"Marisol Marine Company","version":"1.0","type":"link"}