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Garmin GPSCOM 190 User Manual

Page 51

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R

e f e r e n c e

TracBack

Navigation

The

TracBack

function

iii!ows}'ou to

navigate your

track log hack

to the oltiest

track point

in

memory.

RCTIUE ROUTE

UftVPHT DTK

PIS

TDD3

TDDE

__ * _ . __

TDDl

DD7' SEE

CLEAR?INVERT?

119.00

126.77

To save

a TracBack route,

be

sure to

copy route 0

to

another route. To

save

a

temporary waypoint,

sim-

piy

rename it/ol!owing

the

mstruefions on

page

3].

Tips on Creating and Using the TracBack Feature

The GPSCOM 190’s TracBack feature is designed to

help you quickly create and activate a route that follows
your path back to a user-defined starting point. To get the
most out of the TracBack feature, remember the following
tips;

• Always clear your track log at the exact point which

you will want to go back to (airport, landing field,
etc.),

• The ‘RECORD’ option on the track log setup page

must be set to the ‘Yes’ position,

• 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 memor)'^ full’ message. The
receiver will use any available waypoints to create a

TracBack route with an emphasis on the track log

closest to the destination (the oldest track log point
in memory).

• II the ‘CRITERIA 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 best TracBack

route).

• If the changes in direction and distance of your

track log are very 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.

• If you want 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 (e.g., ‘TOOT) that are not contained in routes

1-19. If there are temporary waypoints stored in

routes 1-19, the receiver will create any new tem­
porary waypoints using the first three-digit number
available.