2003 Hyundai Elantra radio antenna

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Ionosphere
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AM reception
AM broadcasts can be received at greater
distances than FM broadcasts. This is be-
cause AM radio waves are transmitted at low
frequencies. These long, low frequency radio
waves can follow the curvature of the earth
rather than travelling straight out into the atmo-
sphere. In addition, they curve around obstruc-
tions so that they can provide better signal
coverage.FM broadcasts are transmitted at high fre-
quencies and do not bend to follow the earth's
surface. Because of this, FM broadcasts gen-
erally 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:
Buildings
Obstructed areaIron bridges
Unobstructed
area
FM radio station
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Mountains
B750A02A-AATSTEREO SOUND SYSTEM
How Car Audio Works
Ionosphere
FM reception
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AM and FM radio signals are broadcasted 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 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
stations or the presence of buildings, bridges
or other large obstructions in the area.

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B750B02Y-AATUsing 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
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 an FM signal weak-
ens, another more powerfanul 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 a reflected signal from the same
station, or by signals from two stations with
close frequencies. If this occurs, select an-
other station until the condition has passed.
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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.

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B870A01A-AAT
ANTENNA ANTENNAANTENNA ANTENNA
ANTENNA
Fixed Rod Antenna Fixed Rod AntennaFixed Rod Antenna Fixed Rod Antenna
Fixed Rod Antenna
Your car uses a fixed rod antenna to receive
both AM and FM broadcast signals.
This antenna is a removable type. To remove
the antenna, turn it counterclockwise. To install
the antenna, turn it clockwise.
CAUTION: CAUTION:CAUTION: CAUTION:
CAUTION:o oo o
o
Be sure to remove the antenna before Be sure to remove the antenna beforeBe sure to remove the antenna before Be sure to remove the antenna before
Be sure to remove the antenna before
washing the car in an automatic car wash washing the car in an automatic car washwashing the car in an automatic car wash washing the car in an automatic car wash
washing the car in an automatic car wash
or it may be damaged. or it may be damaged.or it may be damaged. or it may be damaged.
or it may be damaged.
o oo o
o
When reinstalling your antenna, it is im- When reinstalling your antenna, it is im-When reinstalling your antenna, it is im- When reinstalling your antenna, it is im-
When reinstalling your antenna, it is im-
portant that it is fully tightened portant that it is fully tightened portant that it is fully tightened portant that it is fully tightened
portant that it is fully tightened
to ensure to ensureto ensure to ensure
to ensure
proper reception. proper reception.proper reception. proper reception.
proper reception.
B870D02Y-GATGlass Antenna (If Installed)
B870D01E-A
When the radio power switch is turned on while
the ignition key is in either the "ON" or "ACC"
position, your car will receive both AM and FM
broadcast signals through the antenna in the
rear window glass.
CAUTION:o Do not clean the inner side of the rear
window glass with an abrasive type of
glass cleaner or use a scraper to remove
foreign deposits from the inner surface
of the glass as this may cause damage to
the antenna elements.
o Avoid adding metalic coating such as Ni,
Cd, and so on. These can disturb receiv-
ing AM and FM broadcast signals. RADIO "ON"
B870A01A