What is another word for frequency modulation?
Pronunciation: [fɹˈiːkwənsi mˌɒdjʊlˈe͡ɪʃən] (IPA) 
Frequency modulation (FM) is a popular technique for modulating radio waves. It involves changing the frequency of a carrier signal in proportion to the amplitude of the modulating signal. Synonyms for FM include frequency shift modulation (FSK), frequency deviation modulation (FDM), and angle modulation. FSK is a technique that involves switching between two frequencies to transmit information. FDM involves dividing a single communications channel into multiple frequency bands to allow the transmission of multiple signals at the same time. Angle modulation encompasses both phase modulation (PM) and frequency modulation. While all of these techniques vary in their approach, they are all used to modulate radio signals for various applications, from broadcasting to military communications.
