QAM

Quadrature Amplitude Modulation (QAM) is a method used to transmit data over radio waves or cables by changing the amplitude of two signals that are out of phase by 90 degrees. These signals, called quadrature signals, carry information simultaneously, allowing more data to be sent within the same bandwidth. Think of it like combining two different signals into one, similar to how stereo sound works. QAM is widely used in digital TV, internet, and wireless communications to efficiently transmit large amounts of data quickly and reliably.