Trackback Navigation - Garmin Personal Navigator GPS 48 Owner's Manual & Reference

REFERENCE
Tips on
TrackBack
Navigation
The track log will be
divided into segments with
temporary waypoints to
create a route back to the
beginning of the track log.
The TracBack function
allows you to navigate
your track log back to the
oldest track point in
memory.
40
Tips On the TracBack Feature
• Always clear your track log at the exact point that
you want to go back to (trail head, truck, etc.).
• The 'RECORD' option on the track log setup page
can be set to either the 'WRAP' or 'FILL' positions.
• There must be at least two track log points stored
in memory to create a TracBack route.
• If there are not enough available waypoints in
memory to create a TracBack route, you will be
alerted with a 'waypoint memory full' message, and
the receiver will use any available waypoints to cre-
ate a TracBack route with an emphasis on the track
log closest to the destination (the oldest track log
point in memory).
• If the 'METHOD' option on the track log setup
page is set to a time interval, the TracBack route
may not follow your exact path. (Keeping the
criteria set to automatic will always provide the
most detailed TracBack route.)
• If the receiver is turned off or you lose satellite cov-
erage during your trip, the TracBack route will sim-
ply draw a straight line between any point where
coverage was lost and where it resumed.
• If the changes in direction and distance of your
track log are complex, 30 waypoints may not be
enough to accurately mark your exact path. The
receiver will then assign the 30 waypoints to the
most significant points of your track, and simplify
segments with fewer changes in direction.
• To save a TracBack route, copy route 0 to an open
storage route before activating another TracBack.
Activating another TracBack or storage route will
overwrite the existing TracBack route.
• Whenever a TracBack route is activated, the receiv-
er will automatically erase any temporary way-
points that are not contained in routes 1-19. If
there are temporary waypoints stored in routes 1-
19, the receiver will create any new temporary way-
points using the first three-digit number available.
(You can also quickly delete all temporary TracBack
waypoints in memory by using the 'DELETE BY
SYMBOL' method described on pg. 19.)