The Garmin MSC 10 Marine Satellite Compass uses a multi-band, multi-constellation GNSS receiver to deliver precise GPS-based heading data without the interference concerns of a traditional magnetic compass. A built-in Attitude Heading Reference System (AHRS) keeps heading accurate at any speed — stopped, turning sharply, or pitching through rough seas — while heave, pitch, and roll data transmit directly to compatible Garmin chartplotters over NMEA 2000. A compact form factor and straightforward pole-mount installation make it easy to add to an existing Garmin marine ecosystem.

Specifications:

• GNSS bands: L1 and L5 GPS (multi-band)
• Constellations: GPS, Galileo (supported when available), GLONASS, and BeiDou (supported when available)
• Positioning accuracy: <1 meter CEP; <3 meters 95%
• Heading accuracy: within 2 degrees
• Position update rate: 10 Hz
• Motion data output: heave, pitch, and roll
• Attitude Heading Reference System (AHRS): fully integrated
• Backup heading: magnetometer-based (calibration required for backup magnetic heading support)
• Network compatibility: NMEA 2000®
• Compatible systems: Garmin chartplotters, autopilots, and other NMEA 2000 heading-sensor-compatible devices
• Mount type: pole mount (hardware included)

In the Box:

• MSC 10 Marine Satellite Compass
• Pole mount
• Mounting hardware
• NMEA 2000® backbone/drop cable (6 meters)
• NMEA 2000 T-connector
• Documentation

Resources:

• Installation Guide (PDF)