Garmin NavTalk GSM - Manual (Page 78)

68
Section 3
GPS Navigation
Map Display
The Map Display
The map display shows your present position and direction of move-
ment as a triangular ‘Position Icon’ in the center of the map. As you travel,
the map display leaves a “trail” (track log) of where you’ve been. The
map display also shows the map scale and geographic details such as lakes,
rivers, highways, and towns.
Use the UP and DOWN keys to change the map scale to show more
map area with less detail, or less map area with more detail. Press and hold
to zoom the map scale rapidly.
In many instances the map will display an ‘Accuracy Circle’ surround-
ing the ‘Position Icon’. The unit uses both map resolution and GPS
accuracy in defining your location to a point within the circle. The smaller
the circle, the more accurate your location.
More detailed map features as well as information about those features
can be displayed using map data transferred from a GARMIN MapSource
CD-ROM. When using MapSource data, the word “MapSource” will appear
below the map scale whenever you zoom in to view map details.
Accuracy Circle
The Accuracy Circle defi nes your location by placing
the position icon with the confi nes of the circle.
The size of the circle is determined by map resolution
and current GPS receiver accuracy. The smaller the
circle the more accurate your location.
Position Icon
The Position Icon displays in the center of the Map
Page and indicates your current location.
Section 4
NOTE: When you use the GPS feature for the fi rst time. It
may take up to fi ve minutes to fi nd your location. After that,
it will take about 15 to 45 seconds to locate your position.
NvTlkGSMManual copy.indd 68 12/2/2002, 8:42:56 AM