Commtest Instruments vb Series Instrument Reference Manual page 61

This means that a lengthy waveform will appear as several 409 600
sample recordings.
•
To create a high resolution spectrum of a waveform, from the
Ascent navigator select the schedule entry that contains the
long time waveform and plot one of the recording 'chunks'.
•
If you are using Ascent level 2 or higher use
Analyze>Partial Waveform Analysis or Freq. Based
Waveform Analysis to zoom in on selected portions of the
waveform. If you are using Ascent level 1 plot the waveform
and change the bottom axis to Frequency. You can then use
the normal zooming and panning functions to carry out
detailed analysis.
52 Section 3: Onsite Analysis - Measurement Menu
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