LR3/Disco 3
The off road navigation route comprises a series of way points which are followed sequentially. Direct point to point
guidance is given to the first way point in the route. When the vehicle arrives at the first way point guidance is given to the
second way point in the route. This process continues for subsequent way points until the final way point (destination) is
reached.
The routes are stored in the non-volatile memory of the navigation computer.
The routes can be entered on the TSD and comprise way points, Longitude and latitude destination and previously stored
routes.
The different route guidance screens give the user the information required for direct point to point direction to the
selected destination (guidance mode). The same guidance screens are also available even when guidance is not being
given (compass mode). All the destination and guidance information is not shown on the guidance screens when in
compass mode. When the system is in compass mode with no guidance being given the route title is ’COMPASS MODE’.
4x4 I
4x4i Gives the driver additional information regarding vehicle systems.
Suspension travel
Gear selected
Range selected
Terrain response
Vehicle heading
Compass heading
Steering wheel angle
The 4x4i System uses inputs from other vehicle systems to display information about suspension and transmission
operation along with navigational information.
TRAFFIC MESSAGE CHANNEL (TMC) SYSTEM
The Traffic Message Channel (TMC) is a function of the FM Radio Data System (RDS). The system broadcasts real-time
traffic and weather information. Data messages are received and decoded by the TMC receiver and passed onto the
navigation system, which then delivers them via the navigation system interface. TMC messages are filtered by the
navigation computer so that only those relevant to the current journey are displayed, allowing the navigation system to
offer dynamic route guidance - alerting the driver of a problem on the planned route and calculating an alternative route to
avoid the incident.
TMC traffic information systems conform to a global standard that has been adopted by traffic data gatherers, information
service providers, broadcasters and vehicle/receiver manufacturers. TMC information is received via the normal FM radio
antenna.
All TMC receivers use the same list of event codes, while the location database (on the map disc) contains both a
country-specific set of location codes for the strategic European road network
TMC traffic data is currently broadcast in many European countries.
VEHICLE INFORMATION and COMMUNICATION SYSTEM (VICS Japan only)
The VICS system supplies the navigation computer with information to enable the navigation computer to re-route the
navigation guidance or to inform the vehicle driver of traffic conditions in the vehicles vicinity. Information is provided to
the system through three routes:
RF transmission
Infra-red transmission
FM multiplex transmissions.
The information is passed to the navigation computer via the VICS receiver and the IHU
RF Transmission
