Radio mode, function (With CODE (523) MB Audio 20 radio) - GF82.60-P-2001SKB

MODEL 171.4 with CODE (523) MB Audio 20 radio 

Radio reception, function 

The rod antenna (A28) receives FM and AM (LW, KW) high frequency signals.

The left antenna amplifier module (A2/64) filters the radio frequency band frequencies from the high-frequency signals which are received, and amplifies these. The amplified signals are then transmitted to the radio receiver by the left antenna amplifier module (A2/64) using a coaxial line.

The radio receiver demodulates the high frequency signals, in other words it separates the useful information (audible frequencies) from the carrier signal (inaudible). The demodulated audio signals are amplified and converted to sound signals by the vehicle speakers.

Different ways of tuning in stations: 

• Tuning by station list
• Tuning by program type list
• Tuning by frequency list
• Tuning by station search
• Tuning by station search on multifunction steering wheel
• Tuning by autostore memory
• Tuning by scan search (the stations of a waveband are played for 8 seconds)
• Tuning by hand
• Tuning by station memory
• Tuning by manual frequency input (via the 12-button control panel of the radio (A2)

Furthermore, the following functions are available (they are shown in the radio display (A2)):

• Noise suppression
• Selection of radio data system stations that can be received well
• "Radio Data System" (RDS) function

Radio Data System function (regional mode) 

Apart from radio programs many radio transmitters (e.g., FM) broadcast additional inaudible digital information such as station name, program type (e.g. pop, culture) and traffic radio detection.

This information is evaluated by the radio (A2) and displayed on the screen provided the following prerequisites are met:

• The "Radio Data System" function is activated.
• A "Radio Data System" station is set.

Radio control panel, location/task/design/ function	GF82.60-P-3115SK
Rod antenna, location/task	GF82.62-P-4115SK
Antenna amplifier module, location/task/ design/function	GF82.62-P-3105SK