Blaupunkt TravelPilot 100 Service Manual download pdf (Page 89)

5 Glossary

2D/3D GPS reception

The GPS receiver uses satellite signals to calculate its (your) position and need at least four signals to give

a three-dimensional position, including elevation. Because the satellites are moving and because objects

can block the signals, your GPS device might not receive four signals. If three satellites are available, the

receiver can calculate the horizontal GPS position but the accuracy is lower and the GPS device does not

give you elevation data: only 2D reception is possible.

Active route

The currently navigated route. You can save and load routes in TravelPilot, but only one route can be

active at any given time, and it is always active until you delete it, reach your destination or you quit

TravelPilot. See also: Route.

City Centre

The City Centre is not the geometric centre of the settlement but an arbitrary point the map creators

have chosen. In towns and villages, it is usually the most important intersection; in larger cities, it is an

important intersection.

GPS accuracy

Several factors have impact on the deviation between your real position and the one given by the GPS

device. For example, signal delay in the ionosphere or reﬂ ecting objects near the GPS device have a

different and varying impact on how accurately the GPS device can calculate your position.

Map

TravelPilot works with digital maps which are not simply the computerised versions of traditional paper

maps. Similarly to the paper road maps, the digital maps show you streets, roads, and elevation is also

shown by colours.

You can use digital maps interactively: you can zoom in and out (increase or decrease the scale), you can

tilt them up and down, and turn them left and right. In GPS-supported navigation, digital maps facilitate

route planning.

North-up map orientation

In North-up mode the map is rotated so its top always faces North. This is the orientation in 2D map view

mode and in Overview mode. See also: Track-up map orientation.

Overview mode

You can instruct TravelPilot to automatically switch to Overview mode if the next route event is in a

distance. In Overview mode the map is shown in 2D but scaled down to a predeﬁ ned zoom level. When

you approach the next route event, the previous 2D or 3D map view returns automatically.

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Blaupunkt TravelPilot 100 Service Manual Page 89