Main Menu Features and Settings GPSMAP 78 Series Owner’s Manual 21 Data Field Description Distance to Next The remaining distance to the next waypoint on the route. Elevation The altitude of your current location above or below sea level. **Elevation - Maximum The highest elevation reached. **Elevation - Minimum The lowest elevation reached. ETA at Destination The estimated time of day you will reach your final destination. ETA at Next The estimated time of day you will reach the next waypoint on the route. Glide Ratio The ratio of horizontal distance traveled to the change in vertical distance. Glide Ratio To Dest.
The glide ratio required to descend from your current position and elevation to the destination elevation. Data Field Description GPS Signal Strength The strength of the GPS signal. Heading The direction you are moving. **Heart Rate (heart rate monitor required) Your heart rate in beats per minute (bpm). Location (lat/lon) Displays the current position in the default position format regardless of the selected settings. . Location (selected) Displays the current position in the selected position format. Odometer A running tally of distance traveled for all trips. Off Course The distance to the left or the right by which you have strayed from the original path of travel.