Antenna is very essential for a radio. The air surrounding us in very silent. The activities that are electromagnetic cannot be captured by the ears of normal human being. All the waves including the one from TV, radio, communication through wireless and even transmissions of the internet are in this environment where we all live, sleep and eat. The human body is not affected by this kind of electromagnetic waves. And hence it does not have the capability to sense its travel. So it is very essential to use a device that could capture all these signals. But how do auto radio antennas work?

It is necessary to learn how the devices, which we use work, their principles etc. this will not only help to gain knowledge about that particular device but also will help a lot during the times of mal functioning of the system or during repairs. With your own knowledge you can fix them. It also helps to maintain the device properly, as you know what all conditions are required to protect the device. The following lines will discuss on the working of the radio. It is so simple that it can be understood even by a layman.

The mechanism in which this works is so simple. Its just like how to turn the dial for selecting the type of music which you would like to be played in your system. There are many stations when you tune some may be very strong but some may be weak. On turning the dial you can see the signal fade in or fade out. There is specific license for all the radio stations to work on. It is given by the FCC.

The Amplitude Modulated waves are conducted at frequency which is low. Hence an antenna which is long can be used. Frequency Modulated waves are being conducted at frequencies which are high. Hence an antenna which is small can be used.

A connection should be established between this antenna and the tuner. So for that one needs to use a very thick wire that can be buried in the body of the car. There should be absolutely no interference as with any phone or any other connections.

There are lot of differences between an ordinary radio antenna and radio antenna of car because the car is not stationary. A heavy wire should be connected that runs through the body of the car that remains shielded. We may have doubt why shielding should be done. This is done to prevent interference of external waves. These external wave can be anything right from cell phone or even various power lines in the road. Only when this interference is stopped there can be smooth flow of radio waves to tuner from the antenna of the radio in the car.

A very important caution to be taken is to fold the antenna as much as possible before sending it to any kind of wash or for service. Because that may cause any kind of breakage or repair to it leading to a problem in reception of signals.

Thus we have learn t How Do Auto Radio Antennas Work

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