Amplitude Modulation (AM)
Definition:Amplitude modulation is a way of sending information, such as music or voices, over radio waves. It works by changing (or modulating) the strength (amplitude) of a carrier wave to match the sound we want to transmit. This modulation allows the sound to travel long distances through the air.
Usage Instructions: - You can use "amplitude modulation" when talking about how radio stations broadcast their signals. - It is often abbreviated as "AM."
Example: - "The radio station uses amplitude modulation to reach listeners across the country."
Advanced Usage: - In technical discussions, you might encounter phrases like "AM radio" or "AM broadcasting," which refer to the specific uses of amplitude modulation in radio communications.
Word Variants: - "Modulation" is the noun form of the process. - "Modulate" is the verb form, meaning to change or control something.
Different Meanings: - While "amplitude modulation" specifically refers to radio signals, "modulation" can also refer to changes in other contexts, like music (changing pitch or tone) or even emotions (changing intensity).
Synonyms: - There aren't direct synonyms for "amplitude modulation," but related terms include: - Modulation - Signal modulation
Idioms and Phrasal Verbs: - There are no specific idioms or phrasal verbs that directly relate to "amplitude modulation," but you might hear "tune in," which means to listen to a radio station.
Key Points to Remember: - Amplitude modulation is a technique used in radio communication. - It involves changing the strength of a wave to carry sound. - It is commonly used in AM radio broadcasts, which can be found on the dial of your radio.