Radio and Radio parts - AJ

• A radio is a tool that helps communicate. The radio was used for electronic communication that is used for news and entertainment and other things.
• A machine that can send out radio calls is called a transmitter. While a machine that receives radio calls is called a receiver.
• When a transmitter and a receiver get lots of radio calls at the same time it is called a broadcast. The things go back and forth from sending to receiving.
• Television also uses radios to send out the pictures and sound. A radio call could be used to open a car door.
• Radios were first used to send out telegraph messages without wires. Later on two way radios brought talking communication like walkie talkies.