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Media Analysis - Essay Example

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Media Analysis Radio, which was invented in during the late 19th century, has been one of the most popular methods of communication. Even today, in the age of television and cell phones, people use the radio and try to spread the message across…
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Media Analysis

Download file to see previous pages... There are radio studios from where the radio signals originate. When a show is being held at a radio studio, the sound waves go into the microphone and are passed to a transmitter, which uses an antenna to send the waves through the air as radio signals. The frequency of the radio signals matches the one in the radio being used, and thus we are able to listen to whatever is being aired from the radio studio. Radio was developed from the idea of telephone and telegraph, all of which are pretty much related. Radio was first used as wireless telegraphy. Radio was not invented right away, but it was the discovery of radio waves which was a major breakthrough. It is because of these waves that the scientists were able to invent the radio, which is has been one of the major forms of communication. It all started back in the 1860s, when a Scottish physicist realized that there existed a kind of waves called radio waves. After a few years, an American dentist was able to perform wireless telegraphy and established the first form of wireless aerial communication. After him, an Italian inventor, Guglielmo Marconi, was able to establish radio communication and send a wireless telegram across the English Channel. At first, these wireless telegrams were basically dots and dashes, a form of Morse code, but gradually future events demanded that some kind of wireless communication must be present, to communicate with each other in time of need. Therefore, in 1899, the United States army developed wireless communication, and the Navy adopted it too. Before this, the Navy was using pigeons and visual signals to spread the message across. During the first few years of radio, the signals were very distorted and the message could not be spread across clearly. Therefore, AM broadcasting was introduced which amplified the signal received by the radio receiver, and thus increased the clarity if the message being sent. Through this, the first speech was declared from New York City to San Francisco and across the Atlantic Ocean. Then in 1933, a much improved version came into being, the FM- Frequency Modulation. It increased the clarity of the audio messages being received by the radio receiver by removing the noise static, caused by the electrical device. This was great improvement over the AM broadcast and led to the development of FM broadcasting, which is the main type of radio broadcasting today. Radio communication is possible by the existence of radio waves. These waves have opened a gateway to different forms of communication, and not just the transistor radio or a household radio receiver. Other than AM and FM broadcasting, radio waves are also used to provide picture and sound in televisions, which have antennas connected to them. These antennas catch the radio signals and receive picture and voice through AM and FM radio waves. Satellites, also make use of radio signals to indicate their position to the computers on Earth, and radio waves are also used to communicate with the devices that have been put in the Solar system, such as the Mars Rover. Cell phones and satellite phones which have become increasingly popular in the past decade, also make use of radio waves to connect to telephone networks, which link the call to the desired destination. Other than this, radio waves are also used in remote controls that are used for televisions, and remote controlled cars and also even to detonate explosives. Nowadays, ...Download file to see next pagesRead More
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