Pioneer CNDV-50MT - Manual (Page 111)

109
Appendix
NAVI/AV
• If you keep driving or scrolling the map to a
point where the map can no longer be dis-
played, the scale automatically switches to a
range possible to display. If you would like to
continue driving or scrolling the map at the
same scale, set the map disc in the navigation
unit.
• You cannot reroute to avoid traffic jam or clo-
sure.
• If you continue to drive outside the route for a
while, you may not be able to perform map
matching.
• If you deviate from the route during memory
navi mode, the route has been set will be
rerouted, but only to return you to the original
route calculated within the memorised area.
• Although an enlarged map of the intersection
will be displayed, no special motorway illustra-
tion (illustration of motorway junctions) will be
displayed.
• Voice recognition functions face some limita-
tions compared to DVD navi mode.
➲ “Voice commands” ➞ Page 100
• In memory navi mode, the voice function to
inform you of traffic jam or closure forming on
the route does not function.
Cautions relating to auto reroute
in memory navi mode
Auto rerouting in memory navi mode is designed
to return you to your original route wherever pos-
sible.
In memory navi mode, persistently deviating from
the route may result in one of the following:
• A clearly circuitous route
• Leaving a toll road and returning to the toll
road from where you left it.
In the above case, if the set route seems unsuita-
ble, insert the map disc. Setting the map disc to
navigation automatically resets the route from
your current location to your destination.
TMC icon during the memory
navi mode
• TMC-related data for one country only can be
memorised. Therefore, if appears on
the screen when crossing an international bor-
der, you will need to insert the disc to use the
RDS-TMC function. Touching
allows
you to check the locations of the traffic infor-
mation along the route. However, you cannot
perform rerouting.
Operation outside the memo-
rised area
When the vehicle leaves the memorised area, the
functions will be limited.
• The auto reroute function does not work.
• You can only display a larger scale map. The
map display will automatically change to a 50-
km (or 100-km) scale.
• The map matching function will not be availa-
ble. Therefore, the position of your vehicle may
be misaligned.
• Only the navigation guidance when arriving to
your destination will be available; no other
guidance is possible (this includes no display
of direction arrows).
To cancel these limitations, reset the map disc to
the navigation system.
Positioning Technology
The Navigation System accurately measures your
current location by combining the positioning by
GPS and by Dead Reckoning.
Positioning by GPS
The Global Positioning System (GPS) uses a net-
work of satellites orbiting the Earth. Each of the
satellites, which orbit at a height of 21,000 km,
continually broadcasts radio signals giving time
and position information. This ensures that sig-
nals from at least three can be picked up from
any open area on the earth’s surface.
The accuracy of the GPS information depends on
how good the reception is. When the signals are
strong and reception is good, GPS can determine
latitude, longitude, and altitude for accurate posi-
tioning in three dimensions. But if signal quality