Continuous position finding, function with code 525 and 527 - GF82.61-P-2002SK

MODEL 171.4 with CODE (525) MB Audio 50 APS radio 

MODEL 171.4 with CODE (527) COMAND APS with single DVD drive (with navigation) 

The navigation processor of the radio and navigation unit (A2/56) with code (525) Audio 50 APS MB radio is integrated into the control unit. On the COMAND operating, display and control module (A40/3) with code (527a) COMAND APS (with navigation) the external navigation module is called navigation processor (N41/1).

The current traffic situation is taken into consideration in the dynamic route guidance. The incoming information on the traffic situation can be received via the radio receiver in the audio gateway control module (N93/1) with the function "Radio data system" and the traffic information channel

The information on the current traffic situation is sent out by a specially equipped broadcasting corporation on an area-related basis (e.g FM) For this purpose a corresponding station must be tuned in. The radio receiver receives the traffic reports from the left antenna amplifier module (A2/64) and passes them on to the traffic data memory. The traffic messages are stored in the traffic data memory of the radio and navigation unit (A2/56) and made available to the navigation processor (N41/1).

The service of the traffic message channel is coded, i.e. a decoder is necessary for this reception (fee required, but better service), or uncoded (free of charge).

Since no communication is accomplished between the vehicle and the broadcasting corporation, the traffic data recorder selects the traffic messages related to the route on which the vehicle is presently driving as well as the surrounding area.

Traffic information analysis 

The traffic data memory decodes the traffic information and passes it on to the navigation processor (N41/1) (internally) upon request. The navigation processor (N41/1) makes the decision whether the route should be changed. If necessary, a message that the route should be changed is output via the vehicle speaker. For synchronization purposes the traffic data memory (A41/1) requires an updated "location list" provided by the navigation processor (A41/1).Each stretch of road and each striking feature (e.g. expressway exit) of the road network detected is clearly defined by means of a number.

This list is originally stored on the DVD-ROM. It is automatically loaded into the traffic data recorder as required (e.g. when DVD-ROM is changed). The traffic information stored in the traffic data memory is erased automatically after half an hour, max. 100 messages can be stored. The decoded traffic messages are marked on the map using suitable symbols. They can also be displayed as clear text. To do this, press the "TRAFFIC JAM" button

Traffic messages relevant for routes are:

• Completely blocked
• Traffic jam
• Stop and go traffic
• Heavy traffic
• Light traffic
• Construction sites
• Trouble-free traffic

In the "Navigation" menu, the list of traffic information can be called up by pressing the "Traffic message station" button.

GPS antenna, location/purpose

GF82.62-P-4107SK