When navigating, the following NMEA sentences are also output when NMEA Output is turned On:
APB - Autopilot Sentence B
BWR - Bearing and Distance to Waypoint
RMB - Recommended Minimum Navigation Info
To turn NMEA Output on or off:
1.Make sure you are in Advanced User Mode, then highlight NMEA Output on the Setup menu.
2.Use the LEFT or RIGHT
Sonar
Sonar deactivates Sonar and removes the Sonar Views from the view rotation. (Off, On, Default = On)
To turn Sonar on or off:
1.Highlight Sonar on the Setup menu.
2.Use the LEFT or RIGHT
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