Radio: A Form of Communication Radio is a form of communication in which intelligence is transmitted without wires from one point to another by means of electromagnetic waves. Early forms of communication over great distances were the telephone and the telegraph. They required wires between the sender and receiver. Radio, on the other hand, requires no such physical connection. It relies on the radiation of energy from a transmitting antenna in the form of radio waves. These radio waves, traveling at the speed of light (300,000 km/sec; 186,000 mi/sec), carry the information. When the waves arrive at a receiving antenna, a small electrical voltage is produced. After this voltage has been suitably amplified, the original information contained in the radio waves is retrieved and presented in an understandable form. This form may be sound from a loudspeaker, a picture on a tel....

Number Of Pages: 12

Number Of Words: 3089

Got a term paper due soon and need some help quick? You have come to the right place. Essay Galaxy has over 50,000 essays, papers, and reports available for download right now! Get ideas from thousands students just like you to help make that essay perfect. Don't hesitate. Join today and get instant access to our enormous database.

Membership Options Price Savings   1 month subscription    $19.95 recurring * 3 months subscription    $39.95 recurring $19.90 6 months subscription    $69.95 non-recurring $49.75