DVB-S,DVB-S2,DVB-S2X,DVB-C Bitrates Calculator

3dB Satellite Bandwidth(approx.)			MHz
Occupied Satellite bandwidth			MHz
Spectral Efficiency			Bit/Hz
Modulators Nyquist filter rolloff factor ( =0.4 when not known- 0.35 for DVB-S)
DVB-S2 Pilot
DVB system
Bit/symbol			Bit/symbol
Symbol Rate			MBaud
Allocated bandwidth			MHz
Symbol Rate	8-PSK	3 bits/symbol	MBaud
Allocated 8-PSK bandwidth			MHz
DVB-C Symbol Rate	16-QAM	4 bits/symbol	MBaud
Allocated 16-QAM bandwidth			MHz
DVB-C Symbol Rate	32-QAM	5 bits/symbol	MBaud
Allocated 32-QAM bandwidth			MHz
DVB-C Symbol Rate DVB-C	64-QAM	6 bits/symbol	MBaud
Allocated 64-QAM bandwidth			MHz
DVB-C Symbol Rate	128-QAM	7 bits/symbol	MBaud
Allocated 128-QAM bandwidth			MHz
DVB-C Symbol Rate	256-QAM	8 bits/symbol	MBaud
Allocated 256-QAM bandwidth			MHz
Netto Transport Stream Bitrate			MBit/s
Bitrate with Reed Solomon encoding Packet length 204 bytes (DVB-S/C only)			MBit/s
DVB-S & DVB-S2 Brutto Bitrate			MBit/s

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For DVB-S2 and DVB-S2X the FECFRAME size is listed in the selection field (68400=normal,16200=short)

Calculation is based on which variable that has changed value.
Put the cursor in another field to trig the OnChange calculations!
By browsing trough different FEC values it is allocated bandwidth/symbolrate that is keept to the same value.

For DVB compliant systems the QAM/QPSK passband spectrum is shaped by root raised cosine filtering with a roll-off
factor alpha (). Rolloff=0.15 for DVB-C systems. 0.35 for DVB-S systems. 0.20/0.25 or 0.35 for DVB-S2 and 0.05/0.10/0.15 for DVB-S2X. For an ideal QAM/QPSK system this means
that all the RF/IF power will lie in the frequency bandwidth:
Allocated bandwidth = Symbolrate*(1+alpha() )

Intelsat Earth Station Standard 420: (IESS420e.PDF):
Allocated Bandwidth= (1+Nyquist rolloff factor)*Symbolrate
Nyquist rolloff factor =0,4 used when rolloff factor is unknown.