Garmin NavTalk Owner's Manual page 104

SECTION 6
'Fill' - A track log will be recorded until the track
memory is full.
'Wrap' (default) - A track log will be continu-
ously recorded, wrapping through available memory;
replacing the oldest track data with new data.
'Interval' - defines the frequency with which the
track plot is recorded. Three interval settings are avail-
able:
'Resolution' (default) - Records track log based
upon a user-defined variance from your course over
ground. The resolution option is recommended for
the most efficient use of memory and TracBack perfor-
mance. The distance value (entered in the 'Interval
Value' field) is the maximum left/right deviation
allowed from the last defined ground track before
recording a new point.
'Time'- Records track log based on a user-defined
time interval.
'Distance'- Records track log based on a user-
defined distance between points.
'Interval Value'- defines the distance or time
interval used to record the track log.
'Trip Computer'- provides readouts for average
speed, maximum speed, odometer, trip odometer and
trip timer. These readouts can be reset from the Trip
Computer Options.
The 'Reset Trip' option resets trip odometer, trip
timer and average speed readouts.