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Features of your vehicle
1624
How vehicle audio works
AM and FM radio signals are broad-
cast from transmitter towers located
around your city. They are intercept-
ed by the radio antenna on your vehi-
cle.This signal is then processed by
the radio and sent to your vehicle
speakers.
When a strong radio signal has
reached your vehicle, the precise
engineering of your audio system
ensures the best possible quality
reproduction. However, in some
cases the signal coming to your vehi-
cle may not be strong and clear.
This can be due to factors, such as
the distance from the radio station,
closeness of other strong radio sta-
tions or the presence of buildings,
bridges or other large obstructions in
the area.
AM broadcasts can be received at
greater distances than FM broad-
casts. This is because AM radio
waves are transmitted at low fre-
quencies. These long distance,low
frequency radio waves can follow the
curvature of the earth rather than
travelling straight. In addition, they
curve around obstructions resulting
in better signal coverage.
JBM002
AM reception
JBM001
FM reception
XM(FL) CAN(ENG) 4b(AUDIO).qxp 1/23/2013 3:42 PM Page 162
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