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Mountains
Buildings
Obstructed areaIron bridges
Unobstructed
area
FM radio station
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Ionosphere
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STEREO SOUND SYSTEM
How Car Audio Works
Ionosphere
FM reception
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AM and FM radio signals are broadcast from
transmitter towers located around your city.
They are intercepted by the radio antenna on
your car. This signal is then received by the
radio and sent to your car speakers.
When a strong radio signal has reached your
vehicle, the precise engineering of your audio
system ensures high quality reproduction. How-
ever, in some cases the signal coming to your
vehicle is not strong and clear. This can be due
to factors such as the distance from the radio
station, closeness of other strong radio stations
or the presence of buildings, bridges or other
large obstructions in the area.AM broadcasts can be received at greater dis-
tances than FM broadcasts. This is because
AM radio waves are transmitted at low fre-
quency. These long, low frequency radio waves
can follow the curvature of the earth rather than
travelling straight out into the atmosphere. In
addition, they curve around obstructions so that
they can provide better signal coverage.FM broadcasts are transmitted at high frequen-
cy and do not bend to follow the earth's surface.
Because of this, FM broadcasts generally begin
to fade at short distances from the station. Also,
FM signals are easily affected by buildings,
mountains, or other obstructions. These can
result in certain listening conditions which might
lead you to believe a problem exists with your
radio. The following conditions are normal and
do not indicate radio trouble:
FEATURES OF YOUR HYUNDAI
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Using a cellular phone or a two-way
radio
When a cellular phone is used inside the ve-
hicle, 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 cellular phone at a place as far as
possible from the audio equipment.
CAUTION:When using a communication system such
as a cellular phone or a radio set inside the
vehicle, a separate external antenna must
be fitted. When a cellular phone or a radio
set is used with an internal antenna alone, it
may interfere with the vehicle's electrical
system and adversely affect safe operation
of the vehicle.
WARNING:Don't use a cellular phone when you are
driving, you must stop at a safe place to use
a cellular phone.
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o Station Swapping - As a FM signal weak-
ens, another more powerful signal near the
same frequency may begin to play. This is
because your radio is designed to lock onto
the clearest signal. If this occurs, select
another station with a stronger signal.
o Multi-Path Cancellation - Radio signals be-
ing received from several directions can
cause distortion or fluttering. This can be
caused by a direct and reflected signal from
the same station, or by signals from two
stations with close frequencies. If this oc-
curs, select another station until the condi-
tion has passed. o Fading - As your car moves away from the
radio station, the signal will weaken and
sound will begin to fade. When this occurs,
we suggest that you select another stronger
station.
o Flutter/Static - Weak FM signals or large
obstructions between the transmitter and
your radio can disturb the signal causing
static or fluttering noises to occur. Reducing
the treble level may lessen this effect until
the disturbance clears.
