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Antenna system (ATS), function - GF82.62-P-0001B

MODEL 215 

Antenna system block diagram Shown with the following vehicle equipment: 

Fig 1: Antenna System Block Diagram - Model 215
G04840996

Preliminary remarks 

In the present description only the antenna system for Audio, TV, telephone and navigation is described.

General information 

The design of the various antennae is adapted to their special reception/transmission ranges.

A distinction must be made between passive and active antennas:

Passive antennas  do not require a voltage supply, they can therefore not directly amplify the radio signal received.

Examples:

Active antennas  are supplied with power. They feature an integrated amplifier.

Example:

The power supply is supplied by separate leads or via the coaxial leads which serve simultaneously for signal transmission (so-called phantom feed). In this case, no separate leads are required for the power supply.

Another difference between the antennae is that many antennae are only used for reception while others are used for both receiving and transmitting.

Examples:

Reception only:

Transmission and reception:

IMPORTANT The detailed descriptions of the individual systems and components are given in the reference documents listed below.

  Cockpit Management and Data System (COMAND), function With COMAND operating and display system (code 352a)
Without USA version (code 494a)
Without Japanese version (code 498)		 GF82.85-P-0003A
    With COMAND operating and display system (code 352a)
With USA version (code 494a)		 GF82.85-P-0003B 
  Rear window antennas, location/task/design/function   GF82.62-P-3106A 
  Telephone antenna, location/task   GF82.62-P-4105A 
  Global positioning system antenna, location/task/design/function   GF82.61-P-4106B 
  Antenna amplifier module, location/task/design/function   GF82.62-P-3105A 
  Antenna splitter, location/task/design/function With COMAND operating and display system (code 352a)
TELE AID (D2B) (code 347)		 GF82.85-P-3107A 
  Keyless Go antenna, location/task/design/function With Keyless Go (code 889) up to 09/2002 GF82.62-P-4100S
    With Keyless Go (code 889) as of 10/2002 GF82.62-P-4100SM 
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