Features of your vehicle
90
4
How vehicle audio works
AM and FM radio signals are broadcast
from transmitter towers located around
your city. They are intercepted by the
radio antenna on your vehicle. This signal
is then received 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 pos-
sible quality reproduction. However, in
some cases the signal coming to your
vehicle may not be strong and clear. This
can be due to factors such as the dis-
tance from the radio station, closeness of
other strong radio stations or the pres-
ence of buildings, bridges or other large
obstructions in the area.
AM broadcasts can be received at
greater distances than FM broadcasts.
This is because AM radio waves are
transmitted at low frequencies. These
long, low frequency radio waves can fol-
low the curvature of the earth rather than
travelling straight out into the atmos-
phere. In addition, they curve around
obstructions so that they can provide bet-
ter signal coverage.
JBM002
AM radio reception
JBM001
FM radio reception
Features of your vehicle
92
4
Satellite radio reception
You may experience problems in receiv-
ing XM™ satellite radio signals in the fol-
lowing situations.
If you are driving in a tunnel or a cov-
ered parking area.
If you are driving beneath the top level of a multi-level freeway.
If you drive under a bridge.
If you are driving next to a tall vehicle (such as a truck or a bus) that block the
signal.
If you are driving in a valley where the surrounding hills or peaks block the
signal from the satellite. If you are driving on a mountain road
where the signal is blocked by moun-
tains.
If you are driving in an area with tall trees that block the signal (30ft./10m or
more); for example, on a road through
a dense forest.
The signal can become weak in some areas that are not covered by the XM
TM
repeater network.
Please note that these may be other
unforeseen circumstances when there
are problems with the reception of XM™
satellite radio signal.
Using a cellular phone or a two-way radio
When a cellular phone is used inside the
vehicle, noise may be produced from the
audio equipment. This does not mean
that something is wrong with the audio
equipment. In such a case, use the cellu-
lar phone at a place as far as possible
from the audio equipment.
SATELITE1
SATELITE2
CAUTION
When using a communication sys- tem such a cellular phone or a radioset inside the vehicle, a separate external antenna must be fitted.When a cellular phone or a radio set is used with an internal antennaalone, it may interfere with the vehi- cle's electrical system and adverse-ly affect safe operation of the vehi-cle.
WARNING
Do not use a cellular phone while
driving. Stop at a safe location to
use a cellular phone.
