| Millions of people around the world use the cell phone | | | | mode of communication. The people who really |
| for communication. Cell phones are used extensively | | | | needed mobile communication used to install a radio |
| for1. Communication2. Speed Text messaging3. | | | | device in a car and a powerful antenna above it. The |
| Internet Access4. Integrate other devices such as | | | | Antenna is the sole operator of radio. It snaps the |
| GSMs, PDAs5. CameraBut anyone wondered how | | | | analog signals which are necessary for communication. |
| cell phones work? How small equipment has the | | | | The only disadvantage of an antenna was it has to be |
| features like text messaging, internet access, to name | | | | installed in an open space which requires some |
| a few. Cell phone is nothing but a radio-sophisticated | | | | financial investment. |
| radio.Before the age of cell phones, radio was sole the | | | | |