Telecommunications Mobile Phone History

Telecommunications Mobile Phone History : In the 21st century , telecommunications has entered an era that is so great . When some twenty years ago the home phone is still a luxury item , now that his phone (mobile phone ) has been an everyday item . increasingly cheap price makes it mushroomed . But did you know that behind all of this is the energy transfer events that are still so phenomenal

Who does not know or mobile phone (mobile phone ) ? Introduced in the 1980s , now it has become communications equipment supplies daily . Many people in many big cities in particular , young and old are often seen flaunting it if it was not used . Placed in the pocket of his trousers, tucked in the waist , or some are deliberately kept held while occasionally used for pointing. which has been increasingly affordable price make this stuff can be owned only by the not - rich .


Whatever it is, which means more cute and attractive size has also been considered as a ' friend ' on the road or in a very practical move . It can connect us with relationships , colleagues , even with the boss sternly from anywhere. telecommunications technology has enabled it could be used anywhere. Especially with the launch of satellite -satellite provider, which in turn allows small objects can be used in remote areas ( remote areas ) , even from the middle of the ocean . One that makes it superior compared to phone home , ie nature , without a cable or wireless.

Revolution in telecommunications has come to the stage was incredible . When daily activities has been so overlaps ( overlap ) , this advanced equipment subsequently become a decisive tool . It can be used as a messenger and an important addition to the news as a medium for light conversation , in which young people used to call ' chat slang ' .

However , did you know that to reach this stage , hundreds of engineers have spent many years in laboratoirum to uncover the mysteries behind it. Starting from studying the mysteries of electromagnetic waves , radio waves following properties classification , until the air or atmospheric parameters become perambatanannya media . All of this relates to the transfer of invisible energy , so anything related to it can still be called a natural phenomenon . If in the city within a certain time interval there are two million people conversing with colleagues via cell phone , we never quite understand how solid or spark a wave of electromagnetic radiation caused by milling each other .

The phone itself is actually not the tools that really sophisticated. This tool is basically only a radio transceiver ( transmitter-receiver/pengirim-penerima ) ordinary , like walkie - talkies or the Handle- talkie that often become standard equipment in police or security officers . The main part of the telecommunications equipment is the oscillator to generate radio signals , radio frequency amplifiers , mixers ( mixer) , the enumerator wave ( detector) , and an audio signal amplifier .

Then why is called a mobile phone ? This title seems to depart from the expanse of the network built amplifier antenna signal RBS (radio base station ), which become tools and spreaders signal catcher . For a city , commonly referred to network providers or provider ( whether or Satelindo Telkomsel ) ordinary share in the form of cells that form an imaginary , where each cell would be represented by an antenna RBS . That 's why mobile phone (mobile phone) is then also known as cellular telephones.

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Trace back, in its history , both cellphones and other wireless telecommunications equipment , associated principally with the results of experiments performed two scientists named James Clerk Maxwell (1831-1879) and Heinrich Hertz ( 1857-1894 ) . Maxwell managed to uncover some of the natural phenomena of electromagnetic waves which confirms , that the speed of magnetic -electric wave radiation is equal to the speed of propagation of light , which is about 186,000 miles (300,000 kilometers ) per second . Meanwhile, in a different occasion , Hertz complement the results of scientific studies to reveal Maxwell , that radio waves are part of this natural phenomenon . To appreciate the efforts of Hertz, the world scientific community and then using the name ' Hertz 'as the unit of frequency or vibrations per second .

In different characteristics and functions , electromagnetic waves can be sorted themselves based on a spectrum ( wavelengths ranging from the largest to the narrowest ) : radio waves , micro , infrared , light / visible light , ultraviolet , X rays , and gamma rays . In particular , radio waves occupy the wavelength region from several kilometers up to 0.3 meters , while the frequency of a few Hertz up to 10 ^ 9 Hertz . These waves are then broken up to thousands of international channels and is used for various purposes under the supervision of the International Telecommunication Union.

At first , his own radio utilized only a limited circle in the army . Form of the first handheld radio in the beginning are still at - large and heavy brick . With form like this, he is still far from practical . However , the benefits of high makes use anywhere. On the battlefield it can be used as a command sending equipment , surveillance , and command a very strategic. In the event of World War II , the shape and strength repaired many times . In the decade of the 70s , the shape can be lessened by the discovery of transistors that can represent a few tens of large components , and by the decade of the 80s more and more with the successful creation of a small integrated circuit that is able to load a few tens or even hundreds of electronic component in which only amounted komponan shirt button . This finding makes telecommunications equipment become increasingly bermasyakat because production costs are becoming increasingly cheaper and more widespread benefits . Digital technology also makes these devices more attractive.

In the history of telecommunications , Indonesian itself had stuck out as a user of the fourth country in the world after the U.S. communications satellite , the Soviet Union , and Canada . The first satellite named SKSD Palapa A slide in 1976 was used as a ' unifier ' of the archipelago. Operation performed by Perumtel (now PT Telkom ) .
In addition to long distance commercial telecommunications purposes , it is also used for sending television signals in addition to the purposes of government. own satellite functions merely as a relay station receiver and successor * high-frequency signals that are not reflected layer of the atmosphere . If SKSD Palapa tend to be operated for the purposes of government , the other agencies , namely PT Indosat ( Indonesian Satellite Corporation ) , also operate the satellite , but for commercial purposes although only on a lease .

In the 70s , maybe some of us still remember how happy can enjoy a series of boxing great Muhammad Ali . It is Intelsat hired thanks to the support for the commercialization of Indosat world of broadcast television . The satellite was also used for the benefit of the international conversation .
Once the opening of the utilization of telecommunications networks also make a variety of world telecom companies race to innovate other commercial purposes. Indosat , for example , recently introduced 12 services that can be connected to 250 countries. Starting from 001 SLI , Conference Call , Precard , Virtual Net, Indonesia Direct , to the free phone . In services which then calls the Indosat @ Your Life is , its users became increasingly easy to call anyone anywhere in the world . With the carrier signals of this message the next world would indeed be little more.

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