Modulation techniques

Modulation techniques are methods used to encode information onto a carrier signal, making it suitable for transmission over distances. Imagine sending a letter (information) in an envelope (carrier signal) to ensure it reaches the right place. Common modulation techniques include Amplitude Modulation (AM), where the strength of the signal varies, and Frequency Modulation (FM), where the pitch changes. These techniques allow radios, televisions, and mobile devices to communicate efficiently and reduce interference, ensuring clear reception of audio, video, or data. Understanding modulation helps appreciate how we connect and share information in modern technology.