frequency. DTMF Olivia MFSK ALE (MIL-STD 188-141) WSJT References Further reading : Samples of a variety of MFSK signals. M Nasseri, J Kim, M Alam - Proceedings of the 17th Communications & Networking, 2014, Unified metric calculation of sampling-based turbo-coded noncoherent MFSK for mobile channel Quantized radio modulation modes Telephony signals