Radio transmission is a technology that sends waves carrying sound (like music or speech) from one place to another without wires. It's used in broadcasting systems like radio and television.
Imagine you're throwing pebbles into a pond; they create ripples that spread out across the water surface. Similarly, when you speak into a radio transmitter it creates "ripples" (radio waves) in space which can be picked up by receivers far away.
Frequency Modulation (FM): A method used in radio broadcasting where the frequency of the carrier wave changes according to input signal strength.
Amplitude Modulation (AM): Another method used in radio broadcasting where amplitude (height) of carrier wave varies according to input signal strength.
Shortwave Radio: A type of radio transmission using shortwave frequencies, capable of long-distance transmission.
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