Garmin StreetPilot GPS StreetPilot GPS Reference Manual

Contents

Garmin StreetPilot GPS StreetPilot GPS Reference Manual Manual pdf 26 page image

16ReferenceZoomingIf you are driving along a road which is shown on the map, the vehicle pointer will often beshown moving down the road. This occurs when your location and direction you are driving indicatethat you probably are on that street. While the StreetPilot performs at optimum to indicate the correctstreet, there are occasions when the Map Page may momentarily indicate that you are on one streetwhen you are actually driving on another. This is due to the inherent accuracy limitations of GPS andthe mapping information.At this point, you should be familiar with the Zoom IN and OUT keys, and how they changethe map display. The map scale is shown at the lower left corner of the map display area. In the exampleat the left, the map scale is 1/4 mile between the two tick marks. If the map page is displayingMetroGuide information from the Map Data Card, the word ‘metroguide’ is inserted below the mapscale, as shown to the right.It is possible to zoom the Map Page to a scale which is too small for the resolution of the storedmap information to be displayed with out sacrificing the quality of the resolution. When this occurs, theword ‘overzoom’ will be inserted below the map scale, as shown to the left.When you are driving on city streets or roads that are within a MetroGuide map data coveragearea, more detailed map scales (for example 500 feet or less) may be more helpful, since they provideyou with a good view of all streets, not merely thoroughfares. However, you may find map scales of twomiles or greater, more practical for freeway driving, especially in non-urban areas.The Map PageThe distance betweenthese two tick marks is1/4 mile.