pulse code modulation frequency modulation
frequency-modulation frequency converter
(light-)frequency modulation
4-level frequency modulation (4-level FM)
AC frequency modulation for motor speed regulation
amplitude and frequency modulation
Amplitude Modulation and Frequency Modulation model
analog Pulse Frequency Modulation
analog subcarrier frequency modulation(FM-IM)
audio frequency modulation
balanced frequency modulation detector
Chaotic Frequency Modulation
chaotic frequency modulation signal
coefficient of frequency modulation
Complete Transistor Frequency Modulation Transmitter
cosine frequency modulation signals
differential space-frequency modulation(DSFM)
digital audio frequency broadcast