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1FEATURES OF YOUR HYUNDAI
120STEREO SOUND SYSTEM
B750A02A-AAT How Car 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 car. This signal isthen received by the radio and sent to your car speakers. When a strong radio signal has reachedyour vehicle, the precise engineering of your audio system ensures the best possible quality reproduction. However,in some cases the signal coming to your vehicle may not be strong and clear. This can be due to factors suchas 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 reception
Ionosphere
FM reception
B750A01L Ionosphere
B750A02L Mountains
Buildings Unobstructed
area
FM radio station
B750A03L
Obstructed area Iron bridges
AM broadcasts can be received at greater distances than FM broadcasts. This is because AM radio waves aretransmitted at low frequencies. These long, low frequency radio waves can follow the curvature of the earth ratherthan travelling straight out into the ionosphere. In addition, they curve around obstructions so that they canprovide better 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 bybuildings, mountains, or other obstruc- tions. These can result in certain lis- tening conditions which might lead youto believe a problem exists with your radio. The following conditions are nor- mal and do not indicate radio trouble:
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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 thatyou select another stronger station.
o Flutter/Static - Weak FM signals or
large obstructions between thetransmitter and your radio can dis- turb the signal causing static or flut- tering noises to occur. Reducing thetreble level may lessen this effect until the disturbance clears. o Station Swapping - As an FM signal
weakens, another more powerful sig-nal near the same frequency may begin to play. This is because yourradio is designed to lock onto the clearest signal. If this occurs, select another station with a stronger sig-nal.
o Multi-Path Cancellation - Radio sig-
nals being received from severaldirections can cause distortion or fluttering. This can be caused by a direct and a reflected signal fromthe same station, or by signals from two stations with close frequencies. If this occurs, select another stationuntil the condition has passed. B750B02Y-AAT Using a cellular phone or a two- way radio When a cellular phone is used inside the vehicle, noise may be producedfrom 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 sys-tem such as a cellular phone or a radio inside the vehicle, a separateexternal antenna must be fitted. When a cellular phone or a radio set is used by using an internal an-tenna alone, it may interfere with the vehicle's electrical system and adversely affect safe operation ofthe vehicle.
WARNING:
Don't use a cellular phone when you are driving. You must stop at a safe place to use a cellular phone.!
!
B750A04L B750A05L
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B880C02B-GAT Glass Antenna (If Installed) When the radio power switch is turned on while the ignition key is in either the "ON" or "ACC" position, your car willreceive both AM and FM broadcast signals through the antenna in the rear quarter glass. CAUTION:
o Do not clean the inner side of the rear quarter glass with an abra-sive type of glass cleaner or use a scraper to remove foreign de- posits from the inner surface ofthe glass as this may cause dam- age to the antenna elements.
o Avoid adding metallic coating
such as Ni, Cd, and so on. Thesecan disturb receiving AM and FM broadcast signals.
HHP2184