Magellan 6000t Verweisanleitung

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Chapter 2: GPS Information
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2.3 A Word on the Safe Usage of GPS Maps
Just like paper maps, maps on GPS devices vary greatly in terms of information included and visual presentation. Whether 
topographical maps, roadmaps or marine charts, each map and the data it presents is designed for a specific purpose. For 
example, marine charts will often present only a minimal representation of roadways and are not a substitute for street maps. 
Topographic maps usually provide minimal detail about bodies of water and do not contain marine navigational markers. 
Maps also vary widely in scale: the smaller the scale, the more detailed the map. Therefore, when using GPS maps (just as 
with paper maps) it is important to consider what type of map you are using in your explorations and to use common sense.
2.3.1 From Source to Destination
Thales Navigation, maker of Magellan GPS products, is not a cartography company. We do not create the maps that are used 
on our GPS devices. We seek to acquire map data from the best public and private sources available at the time of 
publication. Thales Navigation licenses* topographical maps, roadmaps, marine charts and points of interest (POI) data 
from commercial and governmental cartographic sources that provide raw map data. Thales Navigation processes and 
compresses the raw data into a format that makes it presentable and manageable to work on our GPS devices. And to ensure 
that our map data is as robust as possible, data from multiple sources are often combined to provide a better user experience 
for our customers. This processing does not alter the landforms, coordinates or other spatial data that comes in the raw data. 
The accuracy of the maps is fundamentally dependent on the source data used to create them. Map data changes frequently 
due to both natural and man-made causes. As a result, governmental and commercial cartography companies must 
continuously review, correct, and improve upon their map data. We release new versions of our maps on a regular basis to 
reflect these changes. 
After processing the data, we test the compatibility of the map with our GPS devices to ensure that the products we release 
work properly on our GPS devices. We also beta-test our products to get customer feedback prior to release. 
2.4 Placement of Your GPS Receiver for Optimal Satellite Reception
Firstly, before considering signal reception, it is important to understand that your GPS receiver is a sensitive piece of 
equipment. You should never place it in an area of your vehicle where it may be struck by other items, or where vibration may 
cause it to strike other items or parts of the vehicle. The windscreen mount included in the box allows you to place the 
receiver in such a way that the aerial can receive the satellite signal through the windscreen without being obstructed by 
other parts of the vehicle. However, tinted windows or other reflective coatings may interfere with reception. In this case, it 
may be required to attach an external aerial (optional). An external aerial provides faster satellite fix times and greater signal 
strength. Because it is mounted outside of the vehicle, it is not affected by reflective coatings on windows and has an 
unobstructed line of sight to the satellites. Other mounting solutions are available but may require an external aerial.
External conditions also affect GPS signal reception. Although weather conditions do not affect the signal, tall buildings and 
trees, driving through canyons, wooded areas or tunnels, and sitting in a garage or covered parking area will affect the GPS 
signal. The GPS receiver constantly monitors and updates the GPS signal status and will reacquire the signal once it is clear 
of any obstructions.
2.5 Signal Acquisition Time
The first time you use your Magellan RoadMate 6000T, or if you travel over 500 miles with it off, there may be a delay in 
receiving the initial satellite fix; depending on your position and the position of the satellites, this could take 15 minutes or 
more. Normal usage will receive the satellite fix much faster, but still may take several minutes. It is important to have your 
aerial rotated upwards and an unobstructed view of the sky to receive the best possible satellite signal.