gf8262s3003snb

Antenna amplifier module, component description

Type gf · topic 82.62 · version 0100 · 2010-09-06

Applies to: MODEL 639 with CODE (EJ6) COMAND APS with CODE (XZ1) Model generation 1 MODEL 639 with CODE (EJ7) COMAND APS with DVD changer with CODE (XZ1) Model generation 1

Where it sits

Function group 3 Body › 82 Electrical system, body › 82.62 Loudspeakers, amplifiers, antennas — Series 639

GF82.62-S-3003SNB

Antenna amplifier module, component description

16.8.10

MODEL 639
with CODE (EJ6) COMAND APS
with CODE (XZ1) Model generation 1

MODEL 639
with CODE (EJ7) COMAND APS with DVD changer
with CODE (XZ1) Model generation 1

Antenna amplifier module, component description

N82.62-2049-11

Illustrated on model 639.811

A2/19 FM/AM amplifier

Location

The FM/AM amplifier is installed on the inside of the vehicle roof beneath the overhead control panel control unit (N70)

Antenna amplifier module, component description

N82.62-2048-11

Window antenna location (A2/51)

A2/51 Window antenna

The left part of the window antenna (viewed in the direction of travel) is the AM/FM2 antenna, and the right part is the FM1 antenna.

Task

The task of the FM/AM amplifier consists of the following subtasks:

Receiving signals

Amplifying signals

Transmitting signals

Receive signals

- Phantom voltage from radio/radio with navigation NG (N87/1)

- Receiving FM1, FM2 and AM signals from the window antenna

Amplifying signals

- Amplifying AM signals

Transmit signals

- Transmitting FM1, FM2 and AM signals to the radio/radio with navigation NG

The FM/AM amplifier has the antenna diversity function for the FM signals. Depending on the signal strength, the FM1 or FM2 signals are transmitted to the radio/radio with navigation.