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प्रश्न
Explain the basic concept of mobile telephoning.
उत्तर
Mobile telephony is the method of providing telephone services to phones that can be moved around freely and does not require to stay fixed in one location. They use the cellular radio network technology. A radio antenna is installed in every hexagonal cell for receiving and sending radio signals from and to the mobile phones physically present in the cell. In a particular area, all cell antennas are connected to each other through a network. When someone dials a mobile number, an electromagnetic wave of particular frequency is generated by an electronic oscillator circuit inside the mobile. This wave carries dialled number’s information and is transmitted to cell antenna through antenna of the dialled mobile.
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