Understanding How Digital Radio Works

lasmes

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If you have always been accustomed to listening to an analog radio, perhaps it's time to switch to a digital radio and experience how life would be like on the other side with a new technology in radio communication. To help you make this decision, Radio Fidelity has carefully considered just what you need to know when you make this big decision, and how it compares to your present, obsolete analog radio. We've concluded that there's plenty to like about digital radio. In particular, we're going to look at the advantages of digital audio, why it's more suited to certain situations than broadcast radio (and why you may not want to use it), the benefits of HD radio and what it's capable of, and finally what you need to know about FM radio licensing.

In order to appreciate the advantages of Radio Fidelity's Total Digital Plus, it helps to first understand exactly how radio communications work, and what distinguishes broadcast from satellite radio communications. Essentially, all radio communications are done via a transmission known as the "waves". These waves are formed by radio stations when they send out radio waves to various areas of their radio spectrum to listeners who are within range.

Because radio waves are essentially a bunch of tiny bits and bytes (hence the term "bits") that zip through space, you can imagine that these bits and bytes can travel in different directions. As an example, if we take a conversation between two people on land, (where words are perceptible), the radio waves emitted would travel through the air until they hit a barrier in the atmosphere, at which time the words would be "transmitted" or understood as something understandable by the viewer of the radio station. Now, let's consider what happens if those words were instead "transmitted" through a satellite transmitting dish and then received by someone on the ground in another location. The "tones" of the radio conversation would be identical, but as the bits of the radio wave became closer to each other, their speed of transmission would increase until they ultimately reached the intended recipient. This is basically what happens when you tune into a radio fm radio; your radio waves simply "fall out" of the sky and are picked up by a radio station listener somewhere on earth.

So why doesn't everybody just turn their fm radio on and listen? Well, there are many reasons why you wouldn't want to do this. First, you would need to get an FM radio license to do this. Even with a license, though, if you wanted to transmit in more than one county, the process would take longer than if you were just listening to your local radio stations.

Another reason people don't do this, is because they have a difficult time figuring out how to convert their analog radio signal into digital radio signal. This can be done, but is very complicated. Most people just settle for the analog radio. They are satisfied with it and continue to listen to their radio shows and programs.

But if you really want to experience broadcasting like you see on television, you need to go with a digital radio. You will be able to hear and receive great quality sound programming all throughout the whole country, because the digital radio stations are run out of transmitters in various locations, instead of being transmitted from a satellite dish. Digital radio is a great solution for many people who are radio broadcasting at home, or in a small community. It is a great solution for people who have access to a scanner to pick up the broadcast, but do not have access to tuning in to their station. It also is a great option for people who do not want to have to interrupt their daily schedule to listen to another program.
 
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