Main Menu Features and Settings 22 GPSMAP 78 Series Owner’s Manual Data Field Description Pointer The data field arrow points in the direction of the next waypoint or turn. Speed The current rate of speed at which you are moving since last reset. Speed - Maximum The maximum speed reached since last reset. Speed - Moving Avg. The average speed of the device while moving since last reset. Speed - Overall Avg. Your average speed since last reset. Sunrise The time of sunrise based on your GPS position. Sunset The time of sunset based on your GPS position. Data Field Description Temperature - Water The temperature of the water.
Requires a connection to a NMEA 0183 temperature- capable device to acquire data (page 24). Time of Day The current time of day based on your time settings (format, time zone, and daylight saving time). Time to Destination The estimated time needed to reach your final destination. Time to Next The estimated time needed until you reach the next waypoint on the route. To Course The direction in which you must move to return to the route. Trip Odometer A running tally of the distance traveled since the last reset. Trip Time - Moving A running tally of time since the last reset.