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Position Fix Position coordinates as computed by the receiver.
Reverse Route Duplicates an existing route but in reverse order.
Route A planned course of travel that is defined by a sequence of
waypoints. When active, the route is used in the calcula-
tion of all navigation data except position, speed over
ground and track/course over ground.
Start and Destination Waypoint (FROM/TO) Waypoints that mark the
beginning and ending of a leg of a route.
TDs Coordinate system using lines of position determined by
the Loran-C signals. Many coastal navigators use TDs
because Loran is a familiar radio aid navigation and TDs
are clearly marked on their charts. Your Magellan receiver
can display position coordinates in TDs by converting from
LAT/LON.
Time To Go The estimated time for the receiver to reach the destina-
tion from its current position based on the current VMG.
True North The direction to the geographical North Pole from an
observer’s position. The north direction on any geographi-
cal meridian.
Track The actual path travelled, which may differ from the
planned course.
Track History The track over a selected length of time.
UT Universal Time, formerly referred to as Greenwich Mean
Time (GMT).
UTM Universal Transverse Mercator (UTM) metric grid system
used on most large and intermediate scale land topo-
graphic charts and maps.
VMG Velocity Made Good. The component of the velocity that
is in the direction of the destination.
Waypoint A location saved in the unit’s memory which is obtained by
entering data, editing data, calculating data or saving a
current position. Used to create routes.