Garmin 128 Owner's Manual

Also see for GPS 126: Specifications

• If there are not enough available waypoints inmemory to create a TracBack route, you will bealerted with a ‘waypoint memory full’ message,and the receiver will use any available waypointsto create a TracBack route with an emphasis onthe track log closest to the destination (the oldesttrack log point in memory).• If the ‘Method’ option on the track log setup pageis set to a time interval, the TracBack route maynot follow your exact path. (Keeping the criteriaset to automatic will always provide the mostdetailed TracBack route.)• If the receiver is turned off or you lose satellitecoverage during your trip, the TracBack route willsimply draw a straight line between any pointwhere coverage was lost and where it resumed.• If the changes in direction and distance of yourtrack log are complex, 30 waypoints may not beenough to accurately mark your exact path. Thereceiver will then assign the 30 waypoints to themost significant points of your track, and simplifysegments with fewer changes in direction.• To save a TracBack route, copy route 0 to an openstorage route before activating another TracBack.Activating another TracBack or storage route willoverwrite the existing TracBack route.• Whenever a TracBack route is activated, thereceiver will automatically erase any temporarywaypoints that are not contained in routes 1-19.If there are temporary waypoints stored in routes1-19, the receiver will create any new temporarywaypoints using the first three-digit numberavailable. (You can also quickly delete all tempo-rary TracBack waypoints in memory by using the‘delete by symbol’ method described on pg. 21.)27The TracBack feature willnavigate your track logback to the oldest point inthe receiver’s memory.REFERENCETracBackThe track log will bedivided into segments withtemporary waypoints tocreate a route back to thebeginning of the track log.