ASK (Amplitude Shift Keying)

Amplitude Shift Keying (ASK) is a digital communication method where the strength or amplitude of a carrier wave is changed to represent data. Think of it like turning a light on and off: a higher amplitude might represent a ‘1’, and a lower (or no) amplitude a ‘0’. This way, information is transmitted by switching between different signal levels. ASK is used in various applications, such as radio frequency communications and digital data transmission, because it efficiently encodes binary data through simple variations in signal strength, enabling reliable and straightforward data transfer over different media.