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Furuno SCX21 Satellite Compass – NMEA 0183
The Furuno SCX21 Satellite Compass delivers elite-level heading and motion data for US marine networks, featuring a quad-antenna array for extreme accuracy even in heavy weather.
- Sensor Tech: Four Multi-GNSS Antennas (GPS, QZSS, GLONASS, Galileo)
- Heading Accuracy: 1.0° RMS Precision (NMEA 0183 Output)
- Motion Data: Provides Heave, Pitch, Roll, and Rate of Turn (ROT)
- Update Rate: High-Speed Data Refresh for Radar and Autopilots
- Reliability: Solid-State Design with No Moving Parts to Wear
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Description
Furuno SCX21 | NMEA 0183 High-Precision Satellite Compass
Streamline your bridge data by implementing the Furuno SCX21, a multi-GNSS satellite compass that delivers exceptional heading, pitch, roll, and heave accuracy. Using four separate GNSS antennas, this sensor calculates heading data with 1.0-degree precision, providing the drift-free information necessary for stable radar overlays, high-performance sonar tracking, and precise autopilot course-keeping without the lag of traditional sensors.
Specifically engineered for systems utilizing NMEA 0183 connectivity, the SCX21 features a compact “quad-antenna” design. Ensuring a clear, 360-degree view of the sky is critical to maintaining satellite lock and preventing signal multipath errors, ensuring your navigational electronics receive reliable, high-speed data in the most demanding offshore environments.
Technical Key Features
- Quad-antenna GNSS logic for 1.0-degree heading.
- Delivers heading, pitch, roll, and heave data.
- NMEA 0183 output for universal system integration.
- Multi-constellation support (GPS, QZSS, GLONASS, Galileo).
- Solid-state technology eliminates magnetic interference.
- IP56 rated for extreme maritime durability.
- Ultra-compact design for easy vessel mounting.
Furuno SCX21 Technical Specifications
| Brand | Furuno |
| Model | SCX21 |
| Type | Satellite Compass (Four-Antenna System) |
| Heading Accuracy | 0.5 degrees RMS |
| Output | NMEA 0183 |
| Update Rate | Up to 50 Hz |
| Water Rating | IP56 |
| Power Supply | 12-24 VDC |
| Dimensions | 7.3" x 7.3" x 3.6" (186 x 186 x 91 mm) |
| Weight | 2.2 lbs (1.0 kg) |
| Temp Range | -25°C to +55°C |
Furuno SCX21 Satellite Compass Technical Guide
The SCX21 is a quad-antenna satellite compass that uses four separate GNSS antennas to calculate heading, pitch, roll, and heave with extreme precision. It is completely unaffected by the magnetic interference that plagues traditional fluxgate sensors.
It provides high-speed heading updates via NMEA 0183. This rapid data flow is essential for stabilizing radar overlays on chartplotters and ensuring that autopilots can steer accurately in following seas.
Yes, by providing heave compensation data, the SCX21 allows your fishfinder to "cancel out" the vertical motion of the waves. This results in a much steadier and more accurate picture of the bottom and fish targets.
Because it features NMEA 0183 connectivity, the SCX21 is the perfect upgrade for older bridge systems that require a high-precision heading source but do not have a modern NMEA 2000 backbone.
The SCX21 delivers a heading accuracy of 1.0 degree. This precision is vital for professional-grade MARPA target tracking and ensuring your radar and chart data are perfectly aligned.
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