Tektronix RSA6100A Series, Help Manual

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General Signal Viewing > Common Controls for General
Signal Viewing Displays Traces Tab
+/-Peak – Both the highest and lowest values are selected from the results to be compressed into a
trace point.
Avg (VRMS) [Average V
RMS
] – Each point on the trace is the result of determining the RMS Voltage
value for all of the results values it includes. When displayed in either linear (Volts, Watts) or Log (dB,
dBm), the correct RMS value results.
Sample – The fi rst value is selected from the set of results to be compressed into a trace point.
CISPR Peak – The trace value is calculated by the methods described for peak detectors in the
CISPR documents.
Trace Processing
Traces can be processed to display in different ways. The Function setting controls trace processing.
Normal - Each new trace is displayed and then replaced by the next trace. Each data point contains a
single vertical value.
Average - Multiple traces are averaged together to generate the displayed trace, which will contain just
one vertical value for each underlying frequency data point. Once the speci fi ed number of traces have
been acquired and averaged to generate the displayed trace, additional traces contribute to the running
average, except in Single Sequence run mode. In the case of Single Sequence, the instrument stops
running after the speci
fi ed number of traces have been averaged together. The Number of Traces
setting speci fi es how many traces are averaged. The averaging is performed on the linear (Voltage)
values, resulting in the correct RMS average).
Max Hold - Displays the maximum value in the trace record for each display point. Each new trace’s
display point is compared to the previous maximum value and the greater value is retained for display
and subsequent comparisons.
Min Hold - Displays the minimum value in the trace record for each display point. Each new trace’s
display point is compared to the previous minimum value and the lesser value is retained for display
and subsequent comparisons.
Saving Traces
To save a trace for later analysis:
1. Select the Save TraceAs button. This displays the Save As dialog box.
RSA6100A Series Real-Time Spectrum Analyzers Help
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