![]() Samples Forward TDM Link (Ground Station to Plane) This is part of Inmarsat's Aero H and H+ service. with convolutional FEC Forward Error Correction (Raw data throughput is 21000 bps Bits per second (bps), actual data rate with FEC Forward Error Correction is 10500 bps Bits per second (bps)). 10500 bps Bits per second (bps): Aviation- QPSK Quadrature Phase-Shift Keying (2 bits per symbol) (OQPSK) modulation at 10500 Bd Baud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second.Span 1600 Hz Hertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). ![]() 1200 bps Bits per second (bps): Aviation- BPSK Binary Phase-Shift Keying (1 bit per symbol) (SDPSK or Pi/2- BPSK Binary Phase-Shift Keying (1 bit per symbol)) modulation at 1200 Bd Baud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second.Spans 800 Hz Hertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). ![]()
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