User Manual
Appendix
Page 14 P/N 2349-72784-00
B.5 Calculating Symbol Rate
To Calculate the Symbol Rate for QPSK configuration:
Symbol Rate =
2*FEC
BR
MSymbol/sec
Where:
BR = Bit Rate
FEC = Forward error correction = Viterbi rate x Reed Solomon rate
FEC = Viterbi rate x
204
188
To Calculate the Symbol Rate for QAM configuration:
Symbol Rate =
sec/
___Re
Msymbols
QAMxSolomoned
BR
Where :
BR = Bit Rate
Reed Solomon =
204
188
QAM = 4 for QAM 16, 5 for QAM 32, 6 for QAM 64, 7 for QAM 128, or
8 for QAM 256.
NOTE
It is important to input the Symbol rate accurately, including all decimal places that
are given.
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