The many uses of radio waves Radio is one of our most important ways of communicating. Since the late 1800s, when radio was invented, it has played a huge role in our lives. Communication between two far distant places became quick and much more inexpensive than stringing telegraph wire.
Broadcasting is the most well known use of radio.
Radio stations arrange songs and programs of particular genres to broadcast to listeners who tune in to hear them. Most stations provide short newscasts and talk radio provides a public forum where people can listen to interviews or call in to speak with the host or his or her guests. Companies can buy ad space on privately owned stations to air commercials designed to appeal to that station's listeners. Two-way radios are also very important. Emergency personnel such as police, fire fighters, and ambulance crews use radio to stay in contact with their bases and with each other.