How Radios Transmit and Receive Sound

The video explains what a radio is and how it functions as a device for transmitting sound through radio waves. It covers the process of radio transmission, starting from a radio station where audio is encoded using AM or FM modulation. The RF signal is then amplified and sent to a transmitter antenna. The video also describes how radios receive signals, using a tuner to locate the desired RF signal, converting it back to an IF signal, and finally demodulating it to produce audio. The process saves electronic circuitry and allows users to hear music, news, or talk shows.

What is the primary function of a radio?

Explain the process of how a radio transmits sound.

What are the two modulation formats mentioned in the text?

Describe the role of the tuner in receiving radio signals.

How does the audio get amplified for the user to hear?