GPS Devices
Portable Navigation Devices (PND) | Portable Navigation Devices (PND) |
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Portable Navigation Devices are not permanently integrated into the vehicle, having only a simple bracket to mount the device on the surface of the dashboard and are powered via the car cigarette lighter. This class of GPS unit does not require professional installation and can be typically used as a handheld device unit, hence allowing the user to move them easily to other vehicles. On the other hand, though, their portability also means they can be easily stolen if left inside the vehicle. The display is usually touch-screen, easy to use, with dimensions from 3.5" to 7" and a high resolution. Most Portable Navigation Devices have built-in hard disks in order to store menu data, voice files and map files, whilst other feature SD card slots. Most PND units also have built-in GPS antennas, capable of receiving in any area from 8 to more than 20 GPS satellite signals or channels. More signals means that your GPS unit can lock on to "backup" satellites in case the signal drops from another. This will allow you to have uninterrupted GPS coverage, without any gaps or lag while navigating. Another big advantage is the option of connecting to a PC which is attained through the availability of the USB port that may or may not be built in your GPS. USB ports allow easier updates and upgrades that the manufacturer may have made available for the unit and also permit the transfer of files. |
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A. The NAVTEQ map is used by a broad
spectrum of business customers, including
vehicle manufacturers, mobile device
manufacturers, Internet mapping portals,
governments and enterprises.
NAVTEQ's customers include: