Amplitude Shift Keying

Amplitude Shift Keying (ASK) is a method of transmitting data by changing the strength of a radio signal's amplitude to represent digital information. In simple terms, it turns the signal's loudness up or down to signify binary data—like turning it on and off to send zeros and ones. When transmitting, the receiver detects these amplitude changes to interpret the original data. ASK is commonly used in radio frequency communications and is a fundamental technique in digital signal processing, providing a straightforward way to encode information over wireless or wired channels.