Radio mode, function - GF82.60-P-2001TJ
MODEL 211.0 /2 with CODE (529) HIGH Class Japan
Radio reception, function
The antennas in the rear window receive high frequency (RF [HF]) signals in the FM and AM ranges (LW, SW). Modulated onto these RF [HF] signals are the music, voice or data signals. The left antenna amplifier module (A2/64) filters the radio frequency band frequencies from the received RF [HF] signals and amplifies them. The amplified RF [HF] signals are then transmitted from the left antenna amplifier module (A2/64) via a joint coaxial line (FM, AM) to the radio receiver in the audio gateway control unit (N93/1). The radio receiver demodulates the RF [HF] signals, in other words it separates the useful information (audible frequencies) from the carrier signal (inaudible). The demodulated audio signals are amplified and converted into sound signals by the vehicle speakers.
Radio mode
The radio menu is accessed by pressing the "AUDIO" function key on the COMAND operating, display and controller unit (A40/3). Following this, the controls for radio mode at the COMAND operating, display and controller unit (A40/3) can be used to set the following subfunctions:
Radio functions:
- Stereo single tuner
- Automatic interference suppression (ASU)
- Automatic / manual station search
- Last station memory
- FM station lists (2 times 6 stations per radio band can be saved per Audio Preset or stored manually)
- Automatic station search for traffic information stations after loss of station reception
- VICS (Vehicle Information and Communication System) Separate traffic information system
- FM antenna diversity, function
Station selection
Different ways of tuning in stations:
- Tuning by list of stations
- Tuning by program type list
- Tuning via frequency list
- Tuning by station search
- Tuning by station search on multifunction steering wheel (MFL)
- Tuning by autostore memory
- Tuning by scan search (the stations of a waveband are played for 8 seconds)
- Manual tuning
- Tuning using station preset
- Tuning by manual frequency input (via the 12-button control panel of the operating unit)
FM antenna diversity
If reception problems occur while driving, the COMAND operating, display and controller unit (A40/3) tries to receive the selected station on an alternative frequency with the aid of the second receiver and then tries to switch over accordingly if reception improves.
As the COMAND operating, display and controller unit (A40/3) automatically switches to an alternative frequency of the station in case of reception interference, this may also lead to the reception of a different regional program. If this is not desired, the entry "Regional program" can be activated in the "FM settings" menu.
FM antenna diversity, function
The antenna diversity function switches between the FM antennas in the rear window depending on the reception. The function runs automatically and is carried out by the antenna amplification module (A2/64).
The radio tuner only generates the intermediate frequency (IF [ZF]) signal which serves the left antenna amplifier module (A2/64) as a reference for changing the FM antenna.
| Audio gateway control unit, location/task/design/function | GF82.62-P-3102TJ | |
| Antenna amplifier module, location/task/design/function | GF82.62-P-3105TJ | |
| Rear window antenna, location/task/design/function | up to 30.6.06 Model 211.0 |
GF82.62-P-3106TJ |
| up to 30.6.06 Model 211.2 |
GF82.62-P-3106TSJ | |
| Multifunction antenna, component description | as of 1.7.06 Except code (413) Panoramic glass roof with top sliding roof |
GF82.62-P-3137TM |
| Rear window antenna component description | as of 1.7.06 With code (413) Panoramic glass roof with top sliding roof |
GF82.62-P-3123TM |