GF82.62-P-3105-03A | Antenna amplifier, design | Model 215, Model 220 with infrared protection window glass | |
A2/12
FM1,
TV1
FM2,
TV2,
FZV
FM3,
TV3,
DAB
Antennas in rear window
TV1
TV2
TV3
Telestart
FM
ZF
DAB
FM demodulator
TV4
FM4,
TV4
Electrical filter
Amplifier
AM
AM,
Telestart
FZV Data Out
FM demodulator
FM1
FM4
FM3
FM2
Diversity processor
The illustration shows the A2/12 version with infrared protection window glass:
For model 220 there is an additional version with green glass. The antenna view does not correspond to the actual shape and location on the vehicle.
Telestart Signal for radio frequency remote control stationary heater
(not for , )
TV 1-4 TV frequency bands
ZF Signal from radio for activation of diversity processor
A2/12 Rear window antenna amplifier module
AM AM frequency bands
DAB Digital audio broadcasting
(only for , in preparation)
FM 1-4 FM reception antennas
FZV Radio frequency central locking
The following components are integrated into the rear window antenna amplifier module (A2/12) (see block diagram):
Amplifier for AM antenna
Filter and amplifier with diversity system for 4 FM antennas
Reception unit for radio frequency central locking (RCL)
Filter and amplifier for TV antennas (optional)
The processed signals are transferred to the corresponding control modules via the coaxial connection sockets.
Connecting antennas
Between the rear window antennas and the rear window antenna amplifier module (A2/12) a silicon material with extremely good conductive properties is used for electrical contact. The silicon material is pressed against the silver surfaces of the antennas by spring force.
The rear window is always equipped with all antennas regardless of the special equipment installed. However, there are differences in the national versions of the rear window antenna amplifier module (A2/12) ( , ,...) and the TV option.
On model 220 the rear window antenna amplifier module (A2/12) version also depends on the rear window glass (infrared protection or green glass).
Observe repair notes when installing and removing rear window.