Yugoslavian 16-Tone Modem
The Yugoslavian 16-Tone Modem, also known as YUG-Diplo 16-Tone, is a 16 tone OFDMOrthogonal Frequency-Division Multiplexing PSKPhase-Shift Keying modem used in former Yugoslavia for diplomatic use. No longer used today.
There is an unmodulated pilot tone ~280 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). from the OFDMOrthogonal Frequency-Division Multiplexing signal. There are 16 QPSKQuadrature Phase-Shift Keying (2 bits per symbol) subcarriers, each shifted 110 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). from each other. Each subcarrier is running at 75 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. for a total data rate of 2400 bpsBits per second (bps).