Humminbird 700 SERIES 786CI - Manual (Page 119)

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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 the User Mode is set to Advanced, then highlight NMEA
Output on the Setup main menu.
2. Press the LEFT or RIGHT Cursor keys to change the NMEA Output to On
or Off. (Off, On, Default = Off)
Demonstration
Demonstration deactivates the Demonstration Mode
feature (see Powering On the Unit).
To turn Demonstration on or off:
1. Highlight Demonstration on the Setup menu.
2. Press the LEFT or RIGHT Cursor keys to turn Demonstration On or Off.
(Off, On, Default = On)
Setup Menu Tab