2013年1月8日星期二

Importance of Radio Communication

Two Way Communications
From police and fire department dispatches to aircraft communication, 2 way radio communication works to ensure public safety. This medium becomes particularly important in emergency situations.
Broadcast Radio
Radio broadcasts on AM and FM have been informing and entertaining the public for nearly a century. Today, this medium of communication continues to offer diversity in programming.
Cell Phones
Cell phones are actually sophisticated radios that receive signals from low-power stations operating on similar frequencies over a given area. Cities are usually divided into areas called cells, each of which contains a transmitting station.

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