Tektronix OM4006D, Руководство пользователя

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Appendix B: Alerts
Table 15: Alert code descriptions (cont.)
Code Calling function Description
206 EstimatePhase Size of block or record too small to produce suf fi cient
number of symbols given FreqWindow.High. Returning
clock frequency outside given window.
207 EstimatePhase Clock frequency may be incorrect because of aliasing.
Specify narrower frequency window.
300 EstimatePhase Alpha has changed from previous block. Original value
being used.
301 EstimatePhase zSym does not resemble a QAM signal. Cannot estimate
phase.
302 EstimatePhase
Rise time of phase smoothing fi lter longer than block time.
Estimated phase may not be accurate.
303 EstimatePhase zSym does not resemble an offset QPSK signal. Cannot
estimate phase.
310 EstimateSOP Cannot calculate Jones matrix because pSym does not
resemble a dual polarisation signal.
400 AlignTribs Unable to sync trib to pattern. Returning random data
pattern for %s.
410 GenPattern Clock frequency for Patt is different from NumBitsVar.
Using Patt clock frequency.
411 GenPattern Generating random data values because
length(NumBitsVar.Values) less than PRBS length.
412
GenPattern Generating random data values because NumBitsVar less
than PRBS length.
413 GenPattern Patt.t0 has a different clock phase from BoundValsIn.Patt.t0.
Using BoundValsIn.Patt.t0.
414 GenPattern Patt.t0 has a different clock phase from NumBitsVar.t0.
Rounding number of symbols to nearest whole number.
420 AlignTribs Data pattern synchronization may be incorrect because
%s.SyncFrameEnd <50.
421 AlignTribs Number of bits too small to recover PRBS. Use longer
block, or shorter PRBS in %s.
422 AlignTribs Cannot recover PRBS because number of bits smaller than
length of PRBS in %s.
430
DiffDetection p.Values too short to produce suf fi cient number of output
values given Delay. Using smaller Delay = %d instead.
440 QDecTh Seq must contain at least ten 0s and ten 1s.
441 QDecTh Not enough points available to fi t valid straight line to 0 rail.
442 QDecTh Not enough points available to fi t valid straight line to 1 rail.
902 EngineCommandPost One or more required parameters were not calculated by
CoreProcessing. Variables needed to calculate summary
parameters were not calculated. CoreProcessing may be
commented out of the MATLAB Engine window.
110 OM4000D Series Coherent Lightwave Signal Analyzer