Garmin 378 Manuale Proprietario

You can save your track log to use later as a TracBack, which 

reduces your track log into a route with up to 300 turns. When 

initiated, a TracBack route leads you back to the oldest stored track 

log point. It is a good idea to clear the existing track log before you 

start your current trip. Also, you must save an active track log before 

you can navigate it as a TracBack. 

1.  Press 

NAV, highlight Navigate Track, and press ENTER.

2.  Highlight the track you want to navigate, and press 

ENTER.

Selecting a Saved Track

3.  Use the 

ROCKER to select the point you want to navigate to 

(TracBack to), and press 

ENTER.

When a TracBack is initiated, the GPSMAP 378/478 divides the 

track into segments called legs. Up to 300 temporary turns are 

created to mark the most significant features of the track in order to 

duplicate your exact path as closely as possible. To get the most out 

of the TracBack feature, remember these tips:

•  Always clear the track log at the point that you want to go 

back to (such as a dock or campsite).

•  The Record Mode option on the Active Track tab must be set 

to Fill or Wrap.

•  If the track log Interval option on the Active tab is set to the 

Time option, the route might not navigate your exact path 

(keep the interval set to Resolution for best performance).

•  If the receiver is turned off or satellite coverage is lost during 

your trip, TracBack draws a straight line between any point 

where coverage was lost and where it resumed.

•  If the changes in distance and direction of your track are too 

complex, 300 waypoints might not mark your path accurately. 

The receiver then uses the most significant points of your 

track so there will be fewer changes in direction.

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