Automatic day/night colors: Based on the time and position given by the GPS
device, AVIC-S2 is able to calculate when the sun rises and sets at your current
location on this particular day. Using that information AVIC-S2 can change between
the day and the night color schemes a few minutes before sunrise and a few minutes
after sunset (Page 53). 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.
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 AVIC-S2 this value is shown
as ‘Estimated Arrival’ on the Route Information screen (Page 35).
ETE (Estimated Time En route): 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 AVIC-S2 this value is shown
as ‘Time left’ on the Route Information screen (Page 35).
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 AVIC-S2 will always keep the red 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. Normally Lock-on-Road is always active in AVIC-S2 when GPS position
is available. See also in Page 18.
Lock-to-Position: When GPS position is available, AVIC-S2 will automatically keep
moving the map to always have the red arrow, representing your actual position, on
the screen. You can move the map to lose this position. Then the Back button
appears on the screen. Tapping it will re-enable Lock-to-Position. See also Page 27.
Map Orientation: AVIC-S2 is able to rotate the map for your convenience. If you
choose Heading up mode, the map will be rotated to look in the direction of your
heading. Selecting North-up, the map remains oriented to have North toward the top.
Use the left and right hardware buttons to turn your map in the direction you wish.
This will immediately turn off the automatic rotation. A small compass in the top right
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