Tektronix RSA5100A Series Printable Help page 162

RF Measurements
Traces Tab
The Traces tab enables you to select traces for display. You can choose to display live traces and/or
recalled traces. The
controls section.
NOTE. Not all RF Measurements support multiple traces and/or save and recall of traces.
Setting
Trace
Show
Freeze
Save Trace As
Show recalled trace
Detection (Phase Noise only)
Function
Smoothing (Phase Noise only)
xxx
Trace Processing
The trace can be processed to display in different ways. The Function setting controls trace processing.
Max Hold - Displays the maximum value in the trace record for each display point. Each new trace
display point is compared to the previous maximum value and the greater value is retained for display
and subsequent comparisons.
Normal - Displays the trace record for each display point without additional processing.
Avg (VRMS) [Average V
value for all of the IQ samples available to the trace point. When displayed in either linear (Volts,
148
Trace tab (see page 131)
Description
Selects a trace for display. Choices are Trace 1, 2, and Gaussian (CCDF display only).
Trace 1 and 2 can be recalled traces.
Shows / hides the selected trace.
Halts updates to the selected trace.
Saves the selected trace to a file for later recall and analysis.
Used to select a saved trace for display.
Sets the Detector used for the trace. Only +/- Peak and Avg (VRMS) are available for the
Phase Noise display. This setting is not available for saved traces. +/-Peak detection
results in a trace with two Y values for each X location, with shading between.
Selects the trace processing method (Spurious display only). Possible settings are:
Normal, Average (VRMS), Avg (of logs), and Max Hold.
When enabled, diminishes point-to-point trace variations. Smoothing +/- Peak traces
treats + and - lines independently. The smoothing value adjusts how many points are in
each filter set. Range: 1 - 20; Default: 5.
] – Each point on the trace is the result of determining the RMS Voltage
RMS
for Settling Time displays is described in the Settling Time
Traces Tab
RSA5100A Series Printable Help