Comtech EF Data SNM-1001L Installation And Operation Manual page 182

SNM-1001L Satellite Modem
Forward Error Correction Options
As an example, if 64 kbps QPSK uncoded is used, the symbol rate will be half of this rate, or 32
ksymbols/second. One quarter of this equals 8 kHz. Therefore, the absolute maximum
acquisition sweep range, which should be considered, is ± 8 kHz. If there is any frequency
uncertainty on the incoming carrier, this should be subtracted from the sweep width. The
problem becomes progressively better with increasing symbol rate.
CAUTION
Comtech EF Data is not responsible for incorrect operation if the user does
not adhere to these guidelines when using uncoded operation.
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Revision 1
MN/SNM1001L.IOM