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any more (you can fine-tune it in Advanced settings), then recalculates the route
based upon your new position and heading.
Automatic day/night colors: Based on the time and position given by the GPS
device, N.I.C.E 430 is able to calculate when the sun rises and sets at your current
location on this particular day. Using that information N.I.C.E 430 can change
between the day and the night color schemes a few minutes before sunrise and a
few minutes after sunset (Page 62). As additional information to help your
orientation, the sun is shown in the sky when you display the map in 3D mode with a
low viewing angle, and the sun is near the horizon.
Elevation: When the GPS receiver can see at least four GPS satellites, it can
determine its current position in three dimensions. In this case the elevation is
calculated together with the latitude/longitude position. Note that some older GPS
units may provide incorrect elevation data because they use a simple ellipsoidal
earth model rather than a database that contains local sea levels. You should also
be aware that the elevation value is generally less accurate (by at least a factor of 2)
than the horizontal position. See also 2D/3D GPS Reception.
ETA (Estimated Time of Arrival): A frequently used expression in navigation. It
represents the time when you will reach your destination based upon calculations
using the remaining part of the route and available information of the roads used.
This estimation can only be used as a general reference. It will not be able to take
into account your future speed or the traffic delays. In N.I.C.E 430 this value is
shown as ‘Estimated Arrival’ on the Route Information screen (Page 41).
ETE (Estimated Time Enroute): Another frequently used expression in navigation.
It represents the time needed to reach your destination based upon calculations
using the remaining part of the route and available information of the roads used.
This estimation can be used only as a general reference. It will not be able to take
into account your future speed or the traffic delays. In N.I.C.E 430 this value is
shown as ‘Time left’ on the Route Information screen (Page 41).
GPS: Abbreviation of Global Positioning System. This system is operated by the
DoD (the Department of Defense of the Unites States Government). It consists of 24
satellites orbiting Earth, and several ground stations to keep the satellites in sync. To
calculate your position, your GPS device uses the signals received from those GPS
satellites that are currently visible at your location. You can use this service free of
charge.
Lock-on-Road: This function of N.I.C.E 430 will always keep the blue (yellow when
using night colors) arrow representing your actual position on the nearest road. This
automatic feature is necessary as the position given by the GPS receiver is not
perfectly accurate. Under normal circumstances Lock-on-Road will eliminate the
occasional position error. If the corridor of error is too large, your position may be
shown over a different street on the map. You can only avoid that by using good
quality GPS equipment positioned so that it has a direct view to as large a portion of
the sky as possible. Normally Lock-on-Road is always active in N.I.C.E 430 when
GPS position is available. See also in Page 21. However for pedestrian use it can be
permanently turned off in Advanced settings (Page 77).
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