The Garmin MSC 10 is a GPS-based marine satellite compass that delivers accurate heading, position, pitch, roll and heave over NMEA 2000. Because heading comes from satellite signals rather than a magnetic sensor, it isn't affected by magnetic interference on board.
Features
Heading accuracy within 2°, from multiple GNSS receivers
Multi-band (GPS L1 and L5) and multi-constellation (GPS, Galileo, GLONASS and BeiDou) GNSS for precise positioning: under 1 m CEP, under 3 m 95%
Built-in attitude and heading reference system (AHRS) for reliable heading at any speed, including in rough seas, tight turns or when stationary
Boat pitch, roll and heave data
10 Hz position update rate for smoother, more detailed tracking
Backup magnetometer heading if satellite signal is ever lost (magnetometer calibration required)
Can serve as the primary heading sensor for autopilots and other onboard systems
NMEA 2000 compatible, for compatible Garmin chartplotters
