
Pulse Analyzer (Option 421)
2-4 Pulse Measurements
Pulse Analyzer MG
PN: 10580-00451 Rev. A
2-9
Finding the Wave Amplitude
The wave amplitude is found by subtracting the amplitude of the lower state level from the amplitude of the
upper state level in dB units.
Finding the Peak to Wave Average
The peak to wave average is found by subtracting the wave average from the pulse peak in terms of dB. This
requires the wave average to have a valid value, so there must be at least one full period for a measurement.
Finding the Pre- and Post-Transition Aberration Region
The pre-transition aberration region is determined to be the region of the trace before the last state crossing
before the first transition, and with a width equal to three times the duration of the first transition. It is upper
bounded by the available trace data before the transition. The post-transition aberration region is the region
beginning at the first state crossing past the first transition, and ending at three times the transition duration
or at the beginning of the next transition, whichever comes first.
Figure 2-9.
Positive Pulse Aberration Regions
Figure 2-10.
Negative Pulse Aberration Regions
Time
Amplitude
S2
S1
Pre-Transition
Abberation Region
Post-Transition
Abberation Region
Time
Amplitude
S2
S1
Pre-Transition
Abberation Region
Post-Transition
Abberation Region
Summary of Contents for Field Master Pro MS2090A
Page 45: ......