Garmin GPSMAP 78 Owner's Manual page 28

Customizing Your Device
Data Field
Depth
**Descent
- Average
**Descent
- Maximum
**Descent - Total
Distance to Dest.
Distance to Next
Elevation
**Elevation
- Maximum
**Elevation
- Minimum

Description
The depth of the water.
Requires a connection
to a NMEA 0183
depth-capable device
to acquire data
(page 27).
The average vertical
distance of descent.
The maximum descent
rate in feet/meter per
minute.
The total elevation
distance descended.
The distance to your
final destination.
The remaining
distance to the next
waypoint on the route.
The altitude of your
current location above
or below sea level.
The highest elevation
reached.
The lowest elevation
reached.
Data Field
ETA at Destination The estimated time of
ETA at Next
Glide Ratio
Glide Ratio To
Dest.
GPS Signal
Strength
Heading
**Heart Rate
(heart rate monitor
required)
GPSMAP 78 Series Owner's Manual
Description
day you will reach your
final destination.
The estimated time of
day you will reach the
next waypoint on the
route.
The ratio of horizontal
distance traveled to
the change in vertical
distance.
The glide ratio required
to descend from
your current position
and elevation to the
destination elevation.
The strength of the
GPS signal.
The direction you are
moving.
Your heart rate in beats
per minute (bpm).