18
SELECTING THE FREQUENCY BAND
With your car radio you can receive the
following reception ranges: FM and AM.
The frequency range AM allows the recep-
tion of distant stations because the broad-
cast signals not only travel along the
ground as surface waves, but also as waves
bounced back to earth from the iono-
sphere.
Frequency Modulation (FM) provides
substantially better sound quality than
Amplitude Modulation (AM). However,
because FM transmissions rely on line-
of-sight broadcast waves, their effective
reception range is limited.
Select the waveband
With touch actuations of FM you
switch between the FM memory
areas FM1, FM2 and FMA (Autostore).
With touch actuations of AM you switch
between the AM memory areas AM and
AMA (Autostore).
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Online Edition for Part No. 01 41 0 156 490 - © 11/01 BMW AG
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