The Two-Way Radio

Have you ever talked into your radio?You probably haven’t because the radio you have in your house is only for listening. The radios most people have in their cars and houses are one way radios. In a radio station somewhere an announcer talks or plays a record. You listen to the sounds of the announcer or to the music as it comes from your radio-sent through the air from the station.

The very first radios weren’t used that way. They were two-way radios, and they were used to talk with people on ships at sea. Today two–way radios are used for many different things. Two-way radios are very useful on moving things, such as cars or boats or planes where it’s impossible to hook up a telephone with wires.

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Repair trucks from service stations sometimes use two way radios to get them quickly to customers who need help. Policeman usually have two way radios in their squad cars and there is one at the police station. Policeman use them to get information quickly about accidents or crimes. Police officers in helicopters may use their two way radios to tell squad cars on the ground where to go to catch a thief who’s running away.

Telephone in boats, trains or automobiles are connected by radio to the regular telephone service. If some friend calls you from a speeding train the message goes through the air by radio waves from the train It is picked up by radio that sends it through telephone wires to your house. Telephone companies can also use radio to send telephone messages into faraway places deep in forests, on deserts or on the tops of mountains.

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Weather balloons and satellites send radio messages back from outer space. So do astronauts. Astronauts talk with the ground control. At home on our one way radios we can listen to astronauts on the moon as they describe what is happening. Airplanes use two way radios to talk with control towers. In bad weather airplanes are guided by radio to safe landings.

These are just a few of the many ways radio is used. When you are older you can work with radio as a ham operator. Ha, operator is the name for a person who uses a two-way radio for fun. With a two -way ham set you can talk with other ham operators all over the world.

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