2010 Hyundai Elantra Owner's Manual - Page 167

Features of your vehicle If the SEEK button is pressed for less than 0.8 second, it will work as follows in each mode. RADIO mode It will function as the PRESET STATION select buttons. TAPE mode It will function as the AUTO MUSIC Search(AMS) button. FM reception AM reception ¢ ¢ ¢ ¢ ¢¢ ¢ ¢¢ JBM001 JBM002 CDP mode It will function as the TRACK UP/DOWN button. CDC mode It will function as the TRACK UP/DOWN button. Detailed information for audio control buttons is described in the following pages in this section. 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 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 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 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 distances than FM broadcasts. This is because 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 atmosphere. In addition, they curve around obstructions so that they can provide better signal coverage. 4 94