Tektronix RSA6100A Series, Help Manual

Page: 72 / 415

General Signal Viewing > DPX Spectrum DPX Spectrum Display
To change how the traces are displayed:
1. Select Setup > Settings or click the Settings button.
2. Select the Traces tab.
3. Select the trace type from the drop-down list.
4. If you Peak Trace or -Peak Trace, use the Function drop-down list to select either Normal or
Hold .
a. Select Normal to set the trace to display the maximum/minimum values acquired in each
individual update.
b. Select Hold to set the trace to display the maximum/minimum values acquired over time. The
trace values are updated only if they exceed the existing values.
5. If you select Avg (VRMS), use the Function drop-down list to select either Normal or Average .
a. Select Normal to set the trace to display the average values acquired in each update.
b. Select Average to set the trace to display an average of the average values. Use the Count box to
enter the number of times the trace is averaged.
Available Traces for Display — Option 200 Instrument
Five traces can be shown in the DPX Spectrum display—one bitmap and four line traces. The default
traces are Bitmap and Trace 1. The other three traces are 2, 3, and math. Line traces 1, 2, and 3 have
user-selectable Detection and Function settings. The
fi nal line trace is Math, allowing you to subtract
one line trace from another.
Selecting Traces for Display — Option 200
This is done almost the same as with the standard instrument, except that the choices available for Trace
are different. Instead of +Pk, –Pk, and Avg traces, you can select Trace 1, 2 , and 3. Additionally, you can
set the Detection method for each of these traces to +Pk, -Pk, or Avg (VRMS).
Reference. Changing the DPX Spectrum Display Settings (see page 61)
60
RSA6100A Series Real-Time Spectrum Analyzers Help