1 Series E87 118d (M47T2) 5-door
System functions
The following functions are described by the Car Communication Computer (CCC):
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CCC aerial tuner (CCC-ANT)
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Radio
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CCC applications (CCC-A)
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"Professional" navigation system
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Voice recognition system
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TV function
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Online services
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Telephone
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Telematics
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CD changer
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CCC gateway (CCC-GW)
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System master
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Power master
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Network master
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CCC audio system controller (CCC-ASK)
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Audio master
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Connection master
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CCC user interface (CCC-BO)
CCC aerial tuner
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Radio
The "radio" function is implemented in a two-tuner radio. Tuner 1 is principally responsible for radio
reception. Tuner 1 receives the radio frequencies FM (VHF) and AM (MW, SW and LW). The radio waves
from the radio station are received by the aerials in the rear window. Aerial diversity (on the rear window)
feeds the HF signals received to the aerial input of the two-tuner radio via a coaxial cable.
While tuner 1 receives the radio station required, tuner 2 continues to work in the background. Tuner 2
searches the station frequencies for additional signals. If a radio station transmits a stronger signal on
another frequency, tuner 2 automatically switches to this alternative frequency.
Tuner 2 receives additional information from the Radio Data System (RDS) and from the Traffic Message
Channel (TMC). The additional RDS and TMC information is transmitted together with the signal from the
FM radio station.
TMC information is used by the navigation system to detect tailbacks and traffic congestion. If an AM station
is selected, tuner 2 will continue to receive RDS traffic information announcements from an FM station.
The station is faded out and the traffic information announcement is output through the loudspeakers.
Tuner 2 also generates a list of all RDS radio and traffic information stations that can be received.
CCC applications
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"Professional" navigation system
SBT Car Communication Computer E60, E61, E63, E64, E70, E87, E90, E91, E92, E93, R56
BMW AG - TIS
18.01.2013 18:53
Issue status (12/2007) Valid only until next DVD is issued
Copyright
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