Garmin GPS 89 - Manual (Page 28)

Tfe TmBack fanctìon
ü/Iows )wi to ndvigalc your
trocli log to the ddtst
tradì point in maiiotyL
ftCHME ROUTE
HESTM
TBII
iSI
351'
540'
555'
547'
573'
555' 15.5
CLEWR?IHMERT?
Onci a IracBocli i$ flctivijt-
td, a scries oj tcmporaty
witypotnls mil lie usci to
lüvide itie tract li^ into lt;gs.
To sove
0 IraeBodi route. t>e
sure to copy route 0 to
miotlicr route. To save it
temporary waypoint, sim­
ply ncnome it /ollowing the
instruetiofu on page 20 .
Tips on Creating and Using the TntcEack Feature
The GPS 89i 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 hack 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 Iqg 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 aletted with a
■waypoint memory 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),
• If the 'CRITERIA' option on the track log setup page is
set to a time interval, the TracBack route may not fol­
low your exact path (keeping the criteria set to auto­
matic will alvrays provide the best TracBack route).
• If the changes in direction and distance of your track
legate 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 si^ficam
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 aaivated, the receiver
will automatically erase any temporary waypoints (e.g.,
‘TOOT) that ate not contained in routes 1-19. If there
are tempoiaiy waypoints stored in routes 1-19, the
receiver will create any new temporary waypoints
using the first three-digji number available.
24