How does a car radio work (Hyundai Getz 1)

AM and FM signals are transmitted through repeaters located around your city. The signals coming from them are received by your car's antenna. After that, the signal goes to the radio receiver, and then to the speakers.

When your car receives a strong radio signal, your car's modern audio system will provide high-quality playback. However, in some cases, the signal coming into your car is not strong or clear. This may be due to the distance from the radio station, proximity to other radio stations, or the presence of buildings, bridges, or other large objects in your area.



Generally, AM signals are better received than FM signals. This is because AM radio waves are transmitted at low broadcast frequencies. Long, low-frequency radio waves can travel through the atmosphere in a straight line or bend around the curvature of the earth's surface. Moreover, they can bend around various objects and can provide better radio coverage. As a result, AM signals can be clearly received over greater distances than FM signals.




FM radio waves are transmitted at high broadcast frequencies and cannot bend around the earth's surface. As a result, FM radio waves generally begin to weaken a short distance from the transmitting station. FM radio waves are more susceptible to the influence of buildings, mountains, or other objects. This may result in poor playback quality, and you may mistake this for a malfunction of your radio. The following conditions are normal and do not indicate a malfunction of the radio:

• Attenuation - As the distance between your vehicle and the radio station's transmitting antenna increases, the radio signal strength decreases and the sound begins to fade. In this case, we recommend that you select another station with a stronger signal.
• Constant buzzing noise -- A weak FM radio signal or large obstacles between the radio transmitter and the vehicle's receiving antenna will cause a constant buzzing noise to be produced. This effect can be reduced by lowering the treble control.

• Signal Mixing - As the FM signal weakens, another stronger signal may appear on a similar frequency. This happens because your radio is designed to tune in to the clearest signal. If this happens, try switching to another station with a stronger signal.
• Interference Noise - When radio signals from different directions reach your vehicle's antenna, a constant buzzing noise may occur. This may be caused by the vehicle's antenna receiving both direct and reflected signals from the same radio station or from two stations broadcasting on similar frequencies. If this occurs, try switching to another station until the condition disappears.

Using a cell phone or radio

If you use a cellular radiotelephone in the car, noise may appear in the sound of the audio equipment. This does not indicate a malfunction of the equipment. In this case, try to keep the cellular phone as far away from the audio equipment as possible.

Warning: To be able to use a communication system, such as a cell phone or radio, while in the vehicle, it is necessary to install an additional external antenna. Using radio transceiver equipment in the vehicle with an antenna located in the passenger compartment may cause electromagnetic interference to the vehicle's electrical equipment and affect the safety of the vehicle.

Warning: Do not use a mobile phone while driving, stop in a safe place to talk on the phone.