The Furuno SCX-21 is a compact Multi-GNSS satellite compass for vessels requiring reliable heading and motion data. Its four GNSS antennas enable heading calculation using multiple baselines, supporting stable heading performance even in installations where satellite visibility may occasionally be restricted.
The SCX-21 outputs data via NMEA 0183 for navigation and sensor systems including radar, fishfinders, sonar and autopilots. Accurate heading data supports stable radar trails and autopilot operation, while roll, pitch and heave data can be used for motion compensation on suitable sonar and fishfinder systems.
Key features
- Multi-GNSS satellite compass with four antennas
- NMEA 0183 version
- Outputs heading, position, time, COG/SOG, ROT, roll, pitch, heave and 3-axis speed data
- Suitable for radar, sonar, fishfinder and autopilot integration
- Heading accuracy: 1.0° RMS static / 0.5° RMS dynamic
- Speed accuracy: 0.02 knot
- Follow-up rate: 45°/sec
- Settling time: approx. 60 seconds
- Compact and lightweight sensor housing
- Suitable for recreational boats, fishing vessels and workboats
Product specifications
- Brand: Furuno
- Model: SCX-21
- Product type: GPS/GNSS satellite compass / heading sensor
- Version: NMEA 0183
- GNSS systems: GPS, Galileo, QZSS, SBAS and GLONASS
- Antenna configuration: 4 integrated GNSS antennas
- Heading accuracy: 1.0° RMS static / 0.5° RMS dynamic
- Roll/pitch accuracy: 1.0° RMS static / 0.5° RMS dynamic
- Follow-up: 45°/sec
- Settling time: approx. 60 sec
- GPS position accuracy: approx. 5 m
- WAAS position accuracy: approx. 3 m
- Interface: 3 NMEA 0183 ports
- NMEA 0183 configuration: Tx 3 channels, Rx 2 channels
- Additional interface: 1 PPS port, RS-485
- Protection rating: IP56
- Power supply: 12-24 VDC
- Current consumption: 0.2-0.1 A
- Operating temperature: -25 °C to +55 °C
- Storage temperature: -30 °C to +70 °C
- Sensor weight: approx. 1.0 kg
- Standard equipment according to Furuno:
- SCX-21 Satellite Compass
- FRU-CF-F cable assembly, 15 m
- Pole mount installation kit
- Application: radar stabilisation, heading data, autopilot, sonar and fishfinder motion compensation
