Back Codificació de canvi de freqüència múltiple Catalan Multiple frequency-shift keying Italian 다중 주파수 변이 키잉 Korean MFSK Polish
| Passband modulation |
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| Analog modulation |
| Digital modulation |
| Hierarchical modulation |
| Spread spectrum |
| See also |
Multiple frequency-shift keying (MFSK) is a variation of frequency-shift keying (FSK) that uses more than two frequencies. MFSK is a form of M-ary orthogonal modulation, where each symbol consists of one element from an alphabet of orthogonal waveforms. M, the size of the alphabet, is usually a power of two so that each symbol represents log2 M bits.
- M is usually between 4 and 64
- Error correction is generally also used