What is Broadcasting?
Broadcasting is generally known to transmit information to massive groups of receivers. It is a telecommunications service internationally defined as follows: “radiocommunication service in which the transmissions intended for direct reception by the general public.
Service of Broadcasting
The service of broadcasting divides into Sound and Television.
1. Sound Broadcasting
Sound broadcasting is a group the radio emissions into Amplitude Modulated (AM), Frequency Modulated (FM) and Short Wave (OC). In a relaxed way, the transmitting stations of the sound broadcasting service are known as “radio stations” or simply “radios”. Depending on whether they operate in AM or FM, it is common to hear them referred to as “AM radio” or “FM radio”, respectively.
Like other areas of the Radioelectric Spectrum, the frequencies allocated to the sound broadcasting service exploit based on established frequency plans that in turn base on international technical recommendations. And also adapt to national exploitation through national provisions issued by the Superintendency of Telecommunications.
Only those radio stations that have obtained a Usufruct Title issued by the Superintendency of Telecommunications. And also, register in the Telecommunications Registry those authorized to operate in the country.
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2. Television Broadcasting
Television broadcasting comprises radio broadcasts in two different bands of the Radioelectric Spectrum generally identified as VHF TV and UHF TV.
The exploitation of this radiocommunication service base on a distribution plan for analogue television channels and, like any other frequency in Regulated Bands, only those stations.
And also obtains a usufruct title from the Superintendency of Telecommunications and registers in the Telecommunications Registry. They are authorized to function in the country.
History of Broadcasting
The first transmission was to send telegraph signals over the air, using Morse code, a system industrialized in the 1830s by Samuel F.B. Morse, physicist Joseph Henry and Alfred Vail. They industrialized an electrical telegraph system that sent pulses of electric current along cables controlling an electromagnet situated at the receiving end of the telegraph system. Code needs to convey natural language using only these impulses and the silence between them. Therefore, Morse developed the precursor of modern international Morse code.
In the early 1920s, audio broadcasting became a household medium, first on the AM band and later on the FM band. Television broadcasting began on a new basis in the 1920s and became widespread after World War II. It is using both the VHF and UHF spectrum. Satellite broadcasting began in the 1960s and became mainstream in the 1970s, with the emergence of DBS (Direct Broadcast Satellites) in the 1980s.
Originally all broadcasting consisted of analogue signals using analogue transmission techniques. But in the 2000s, broadcasters switched to digital signals using digital transmission. In general, broadcasting most often refers to transmitting information and entertainment programs from various sources to the general public.
Equivalent audio radio (AM, FM) vs digital audio radio (HD radio, digital audio broadcasting (DAB), satellite radio, and global digital radio (DRM)):
- Analogue TV vs digital TV
The global technological capacity to receive information over one-way transmission networks more than quadrupled over the two periods from 1986 to 2007, from 432 exabytes of information (optimally compressed) to 1.9 zettabytes. This is the equivalent of 55 newspapers per person per day in 1986, And 175 newspapers per person per day in 2007.
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What are the Examples of Broadcasting?
The term ‘broadcast media’ covers a wide range of different communication methods. It including television, radio, podcasts, blogs, advertising, websites, online streaming, and digital journalism.
Purpose of Broadcasting
Historically, audiovisual media have been a public service, as has government-funded public radio. This includes the Société Radio-Canada (CBC) in Canada and also National Public Radio (NPR) in the United States. Broadcast media can also seclude and include advertising. Global TV and CTV are examples of commercial television.
The term ‘broadcast media’ covers a wide range of different communication methods. It including television, radio, podcasts, blogs, advertising, websites, online broadcasting and digital journalism. Audiovisual media provide valuable information that can inform and educate.
And also, it includes public service announcements, daily news, weather forecasts, interviews and documentaries. Broadcast media are also recreational and include reality TV, sitcoms and skits, movies, sports, and advertising.
Broadcasting, electronic transmission of radio and television signs intended for reception by the general public, and private signals intended for specific receivers. Its most common form can describe as the systematic delivery of entertainment, information, and educational programs. And also, other features for simultaneous reception by a dispersed audience with an appropriate receiving device. Broadcasts can be audible only, as on radio, or visual or a combination of both, as on television.
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