Digital modulation

Digital Modulation can further be classified into four types:

There are three types of digital modulation, and they are: Amplitude shift key (ASK) Frequency shift key (FSK) Phase shift key (PSK)

Frequency modulation is more effective in terms of noise tolerance and more suited for data transmission than AM. Phase modulation is more complex and costly but is relatively immune to noise and theoretically makes the best use of bandwidth for a given transmission rate.