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Appendix B: Algorithms
TDS 500C, TDS 600B, & TDS 700C User Manual
B–5
StartCycle — is the starting time for cycle measurements. It is a floating-point
number with values between 0.0 and (RecordLength – 1.0), inclusive.
StartCycle = MCross1
EndCycle — is the ending time for cycle measurements. It is a floating-point
number with values between 0.0 and (RecordLength – 1.0), inclusive.
EndCycle = MCross3
Waveform[<0.0 ... RecordLength–1.0>] — holds the acquired data.
TPOS — is the location of the sample just before the trigger point (the time
reference zero sample). In other terms, it contains the domain reference location.
This location is where time = 0.
TSOFF — is the offset between TPOS and the actual trigger point. In other
words, it is the trigger sample offset. Values range between 0.0 and 1.0 samples.
This value is determined by the instrument when it receives a trigger. The actual
zero reference (trigger) location in the measurement record is at
(TPOS+TSOFF).