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Encyclopedia4U - Radio - Encyclopedia Article (2460 words) |
 | Radio is a technology that allows for the transmission of signals by modulation of electromagnetic waves. |
| A radio wave is created whenever a charged object accelerates with a frequency that lies in the radio frequency (RF) portion of the electromagnetic spectrum. |
| Although the word 'radio' is used to describe this phenomenon, the transmissions which we know as television, radio, radar, and cell phone are all in the class of radio frequency emissions. |
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