Radio mode, function - GF82.60-P-2001GI

MODEL 163 as of 1.9.01 with CODE (522) Modular control system (MCS) radio USA with CODE (357) Navigation system - additional unit with CODE (818b) Single CD player - additional unit with CODE (491) U.S. version 

The MCS  radio menu is activated by pressing the "RADIO"  button on the radio and navigation module (A2/56)  .

Radio reception, function 

The rear window antenna (A2/32)  receives the high frequency FM  and AM  signals. The music, voice and/or data signal is superimposed on these high-frequency carriers. The radio antenna splitter (A2/5)  decouples the AM  signals from the heater current in the rear window and relays them to the FM/AM amplifier (A2/18)  , while the FM  signals are transmitted directly from the rear window to the FM/AM amplifier (A2/18)  . The FM/AM amplifier (A2/18)  filters the frequencies of the radio frequency bands from the high frequency signals received and amplifies these signals.

The amplified signals are then transmitted to the radio tuner integrated into the radio and navigation module (A2/56) by the FM/AM amplifier  (A2/18) via a common co-axial line (FM, AM  )

The radio receiver demodulates  the high-frequency signals, i.e. 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 loudspeakers.

The MCS radio system offers the following possibilities for station selection and adjustment: 

• manual station search is activated by actuating the "joystick  "to left or right. The station search feature stops at the next station found, even when the" joystick  " continues to be actuated.
• Automatic station search with scan  function can be activated by pressing the multifunction " Scan  " key. Each station received in the frequency range is played for approx. 8 s  This function is possible only in the forward direction. When activated " Scan  " appears inverted on the display.
• Manual fine coordination

  The frequency can be changed when the" joystick  " is moved up or down.

• Station selection from memory

  For each frequency range (memory FM, AM  ) there are 10  memory buttons available. Press button of number block approx. 2 s  to store a station. When a station is stored it is confirmed by an acoustic signal. Any station stored previously is written over.

In the frequency range WB  (weather forecast) 7 stations are preset. These stations can be called by momentarily pressing the desired number of the number block.

• Station selection with frequency input via number block Pressing the" *" button followed by actuation of the number keys allows direct entry of the desired frequency. Undesired entries can be erased with the" Clear  " button.
• Station selection from the FM  or AM  station list by pressing the multifunction key" List  " all stored stations in the momentary frequency range are listed. Exit station list by pressing FM  or AM multifunction key  .
• Automatic storage

  The "Auto"  multifunction key (when pressed for longer than 2 s  ) starts automatic storage of the 10  strongest stations in the corresponding frequency range. The stations are stored according to the strength of the received signals in decreasing order.

	Volume/tone adjustments, function		GF82.60-P-2003GI
	Antenna system (AS), location of components		GF82.62-P-0001-03D
	FM/AM antenna amplifier, location/purpose/ design/function		GF82.62-P-4101A