What is Radio?

Radio broadcast technology is the technology that enables signals to be transmitted through the modulation of electromagnetic waves. Since these waves do not require a physical means of transport, they can propagate both in air and in space.

What is Radio?

The Invention of Radio Technology

A radio wave occurs when a charged particle at a frequency in the radio frequency region of the electromagnetic spectrum is excited, and when it acts on an electrical conductor, the conversion of electrical charge inside it into sound signals is performed.

Radio technology originated in 1873 when electromagnetic waves were formulated by Scottish physicist James Clerk Maxwell. Later, German Heinrich Hertz was able to generate such waves electrically, and then the first broadcasts began in 1920.

In the 1990s, systems such as satellite radio, free radio, or community radio were developed, the most popular of which was Internet radio.

History

It is a communication medium that manages to stay up-to-date for many years in the face of more advanced systems such as radio, television, and digital content.

The first generation system was based on AM (Amplitude Modulation) technology, while in 1933 a system based on FM (Frequency Modulation) was proposed that could produce higher sound quality and was less vulnerable to interference. FM technology hit the market in the late 1930s.

In 1873, Scottish physicist James Clerk Maxwell discovered the theory of electromagnetic waves that was the basis of radio. In 1888, German physicist Heinrich Hertz discovered the emission waves. Later, in 1895, the Italian Guglielmo Marconi established the first system, and in 1901 it was able to send signals to the other side of the Atlantic.

The Spanish Julio Cervera Baviera, who worked in Marconi’s private laboratory for three months in 1898, was Cervera who managed to transmit the human voice over the system we know today as radio. In the 1920s, the use of thermionic valve amplification in both receivers and transmitters was a great improvement.

In 1933, Edwin Armstrong developed a high-quality system using frequency modulation that was less sensitive to radioelectric interference than AM. Later this procedure was commercialized with a station system.

In the 1950s, this technology began to be further developed with the increasing use of transistors. In 1957, Regency developed the first battery-powered transistor receiver that was small enough to be carried in a pocket.

Over the next two decades, transistors almost completely dislodged the tubes except for very high powers or frequencies.

It declined somewhat between the 1960s and 1980s due to competition from television and stations stopping shortwave broadcasting. But later, new digital technologies began to be used.

Internet radio is widely used today. Therefore, with the increase of broadband on the Internet, many of the major stations started using Internet broadcasts.

Broadcast Language

When the radio is used as a means of communication, it requires a certain form of transmission and expression. In this form of communication, the act of speech should be handled carefully, because it is important for radio journalists to control their voice as their working tool.

Therefore, in spoken language, tone, intensity, intonation, emphasis, modulation, speed, and intervals are discussed. To avoid grammatical mistakes, vocalization and natural reading are necessary, which help to understand the message well.

Therefore, spoken language plays an important role, as the first news of an event will be reported by radio journalism. In this case, this system, which uses an information tool, provides benefits in many areas and realizes the rapid transfer of current events.

One of the other benefits is that the message is transmitted aloud for people who do not have reading skills. It, therefore, plays an important role in underdeveloped societies with a high percentage of illiteracy.

Shortness and simplicity are at the heart of the features that make radio a perfect information medium. Both features are based on expressive clarity, which contributes to the effectiveness of the radio message.

Radio and Journalism

Radio can be regarded as the medium in which some genres of classical journalism reach their maximum benefit. Some of these types of communication are interviews, discussions, and meetings.

The adaptation of the journalism profession to the radio ensures impressive richness and personal character to the message conveyed, and short, clear, and direct content is obtained during communication. In this way, a greater impact is created on the listener or audience.

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