RADIO         In the modern society, radio is the most widely used medium of broadcasting and electronic communication : it plays a major role in many areas such as public safety, industrial manufacturing, processing, agriculture, transportation, entertainment, national defense, space travel, overseas communication, news reporting and weather forecasting. In radio broadcasts, they use the radio waves which can be both microwaves and longer radio waves. These are transmitted in two ways: amplitude modulation (AM ) and frequency modulation ( …showed first 75 words of 810 total…

…showed last 75 words of 810 total…are not affected by static as much as Am waves. Static is caused by electricity in the atmosphere. FM waves also result in a truer reproduction of sound than AM waves.                  Furthermore, FM has much better sound than AM because AM has different frequency and wavelength than FM. AM stations broadcast on frequencies of between 535 and 1605 kilohertz. The FM band extends from 88 to 108 megahertz. So that people can compare two different bands on the radio.