2012 Hyundai Elantra radio antenna

4111
Features of your vehicle
✽✽NOTICE
If you install an aftermarket HID head
lamp, your vehicle’s audio and electron-
ic device may malfunction.
Glass antenna (if equipped)
When the radio power switch is turned on
while the ignition switch is in either the
“ON” or “ACC” position, your car will
receive both AM and FM broadcast sig-nals through the antenna in the rear win-
dow glass.
AUDIO SYSTEM
OMD040161
CAUTION
• Do not clean the inside of the rear
window glass with a cleaner or
use a scraper to remove foreign deposits as this may cause dam-age to the antenna elements.
Avoid adding metallic coatings such as Ni, Cd, and so on. Thesecan disturb receiving AM and FMbroadcast signals.

4113
Features of your vehicle
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.
FM broadcasts are transmitted at high
frequencies 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 build-
ings, mountains, or other obstructions.
These can result in certain listening con-
ditions which might lead you to believe a
problem exists with your radio. The fol-
lowing conditions are normal and do not
indicate radio trouble:
JBM002
AM radio receptionJBM001
FM radio receptionJBM003
FM radio station

Features of your vehicle
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4
Fading - As your vehicle moves away
from the radio station, the signal will
weaken and sound will begin to fade.
When this occurs, we suggest that youselect another stronger station.
Flutter/Static - Weak FM signals or large obstructions between the trans-
mitter and your radio can disturb the
signal causing static or fluttering nois-
es to occur. Reducing the treble level
may lessen this effect until the distur-
bance clears. Station Swapping - As a FM signal
weakens, another more powerful sig-
nal near the same frequency may
begin to play. This is because your
radio is designed to lock onto the clear-
est signal. If this occurs, select anotherstation with a stronger signal.
Multi-Path Cancellation - Radio signals being received from several directions
can cause distortion or fluttering. This
can be caused by a direct and reflect-
ed signal from the same station, or by
signals from two stations with close
frequencies. If this occurs, selectanother station until the condition haspassed.
Using a mobile phone or a two-way
radio
When a mobile phone is used inside the
vehicle, noise may be produced from the
audio equipment. This does not meanthat something is wrong with the audio
equipment. In such a case, use the
mobile phone at a place as far as possi-
ble from the audio equipment.
JBM005JBM004
CAUTION
When using a communication sys-tem such a mobile phone or a radio set inside the vehicle, a separate external antenna must be fitted.
When a mobile 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 mobile phone while
driving. Stop at a safe location to
use a mobile phone.