Garmin SOUNDER 125 Owner's Manual & Reference

Contents

Tips on Creating and Using the TracBack FeatureThe GPS 125 Sounder’s TracBack feature is designedto help you quickly create and activate a route that fol-lows your path back to a user-defined starting point. Toget the most out of the TracBack feature, remember thefollowing tips:• Always clear your track log at the exact point thatyou want to return to ( truck, dock, etc.).• The ‘RECORD’ option on the track log setup pagemust be set to the ‘Yes’ position.• There must be at least two track log points storedin memory to create a TracBack route.• 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 ‘CRITERIA’ option on the track log setuppage is set to a time interval, the TracBack routemay not follow your exact path (the ‘Automatic’setting will provide the best 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 of direction and distance of yourtrack log are very complex, 30 waypoints may notbe enough to accurately mark your exact path.The receiver will then assign the 30 waypoints tothe most significant points of your track.• If you want to save a TracBack route, copy route 0to an open storage route before activating anotherTracBack. Activating another TracBack or storageroute will overwrite the existing TracBack route.• Whenever a TracBack route is activated, tempo-rary waypoints (e.g., ‘T001’) that are not con-tained in routes 1-19 are erased. If there are tem-porary waypoints stored in routes 1-19, thereceiver will create any new temporary waypointsusing the first three-digit number available.TracBackNavigationREFERENCE30The TracBack feature willnavigate your track logback to the oldest point inthe receiver’s memory.The track log will be dividedinto segments with tempo-rary waypoints to create aroute back to the beginningof the track log.