History Mobile

In the 21st century, telecommunications has entered an era that was so terrible. When some twenty years ago is still the home phone luxury goods, whose name is now mobile (mobile phone) has been an everyday item. The price is so cheap makes mushrooming. But, did you know that behind all this is that the energy transfer events were so phenomenal
Who does not know or mobile phone (mobile phone)? Introduced in the 1980s, now it's communications equipment so the equipment daily. Many people in many large cities in particular, young and old are often seen showing off when you're not in use. Placed in his trouser pocket, tucked into the waist, or some were deliberately kept held while occasionally used for pointing. The price is already more affordable making this stuff can have not only by the rich only.
Whatever it is, its size means that more and more cute and interesting also been considered as a 'friend' on the road or at a very practical move. He can connect us with the relation, colleagues, even with a stern boss from anywhere. Telecommunications technology has enabled can be used anywhere. Especially with the launch of mobile satellites, which then allows these small objects can be used in isolated places (remote area), even from the middle of the ocean. One who makes a home phone is superior, ie nature without cable or wireless.
Revolution in the field has reached pertelekomunikasian indeed a terrible stage. When their daily activities have been so overlaps (overlap), this sophisticated equipment became a decisive tool. He can be used as a messenger and other important news as a medium for small talk, in which young people used to call it 'chat slang'.
However, did you know that to achieve this stage, hundreds of engineers to spend time in many years laboratoirum order to uncover the mysteries behind it. Began to study the mysteries of electromagnetic waves, radio waves following properties classification, until the parameters of the atmospheric air or into perambatanannya media. All this is related to the energy transfer invisible, 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 by phone, we never understood is how tight the spark or an electromagnetic wave radiation generated milling each other.
The phone itself is not the equipment that really sophisticated. This tool is basically a radio transceiver (transmitter-receiver/pengirim-penerima) ordinary, like walkie-talkies or the Handle-talkie that often become standard equipment the police or security officers. The main part of the telecommunications equipment is the oscillator as a radio signal, radio frequency amplifiers, mixers (mixer), count wave (detector), and the audio signal amplifier.
Then why is called a mobile phone? This term seems to go from the stretch of the signal amplifier antenna network built RBS (radio base station) which became a catcher and dispenser device signals. For a city, or the network provider called provider (whether or Satelindo Telkomsel) ordinary share in the form of cells that form the imaginary, where each cell will be represented by an antenna RBS. That's why mobile phone (mobile phone) is then known as mobile phone.
The smaller
Trace back its history, both phones and other wireless telecommunications equipment, associated principally with the results of experiments carried out 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 emphasized, that the speed of magnetic-wave radiation is equal to the electrical propagation speed of light, which is about 186,000 miles (300,000 km) per second. Meanwhile, on different occasions, Hertz complement the results of scientific studies to reveal Maxwell, that the radio waves are part of this natural phenomenon. To appreciate the efforts Hertz, the world scientific community and then using the name 'Hertz' as the unit of frequency or vibrations per second.
The characteristics and different functions, the electromagnetic wave can itself be sorted based on the 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 to 0.3 meters, while the frequency of several Hertz to 10 ^ 9 Hertz. This wave is then broken up to a thousand channels internationally and is used for various purposes under the supervision of the International Telecommunication Union.
Initially, the radio itself utilized only a limited circle in the army. Form of the first handheld radio at first was as big and heavy brick. With this form, he is still far from practical. However, high benefits makes use anywhere. On the battlefield it can be used as the sender of equipment orders, the results of 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 reduced with the invention of transistors that can represent a few tens of large components, and by the decade of the 80 smaller again with successful creation of integrated circuit capable of containing a few tens or even hundreds of electronic component into the components the size of shirt buttons. This finding makes telecommunications equipment became increasingly bermasyakat because production costs are becoming cheaper and more widespread benefits. Digital technology also makes these devices more attractive.
In the history pertelekomunikasian, Indonesia itself had stuck as the fourth country in the world of satellite communications users after the United States, Soviet Union, and Canada. The first satellite named SKSD Palapa A sliding in 1976 was used as a 'unifying' archipelago. Operation conducted by Perumtel (now PT Telkom).
In addition to long distance telecommunication needs of commercial, he also used as the sender of the television signal for purposes other than the government. The satellite itself functions only as a relay station receiver and the successor high frequency signals that are not reflected layer of the atmosphere. If SKSD Palapa tend operated for governmental purposes, the other institutions, namely PT Indosat (Indonesian Satellite Corporation), but also operational satellites for commercial purposes, although only with rental system.
In the 70s, maybe some of us still remember how excited can enjoy a series of boxing great Muhammad Ali. This is thanks to the support Indosat leased Intelsat for the purposes of commercialization of the world of television broadcasting. This satellite is also used for the benefit of international conversation.
Once the opening of any telecommunications network utilization create the world of telecommunications companies compete other innovations that are commercial. Indosat, for example, recently introduced 12 services that could be connected to 250 countries. Starting from 001 SLI, Conference Call, Precard, Virtual Net, Indonesia Direct, to free phone. In a later service called Indosat @ your life is, the users became increasingly easy to contact anyone anywhere in the world. With signals of this messenger the next world is getting smaller will be