Rohde & Schwarz R&S UPP, Руководство пользователя

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Instrument Functions
R&S
®
UPP
538 User Manual 1411.1055.32 ─ 10
"File"
Available in the graphics subsystems
Sweep, FFT, Waveform, Bar Graph
Limits are checked by using a limit file.
The name of the limit file is entered in the parameter field below.
This limit file contains reference values for a limit curve in a special
format (see
Chapter 5.54.4, "Limit Files" , on page 619).
Each new scan interpolates the entries in the limit file to the X values
of the scan.
All scans of a trace (except the Min/Max scans) are compared to this
common limit curve and the limit violations are marked.
"File Intern" Available in the graphics subsystems
Sweep, FFT, Waveform, Bar Graph
"File Intern" is provided and displayed only if "File:
Trace A or
File: Trace B is set at "Y-Source" and a trace file is loaded that con-
tains a limit scan in addition to the data scans.
The Limit Upper curve from the trace file is displayed in the graph and
all scans are compared to this limit curve (except the Min/Max scans).
"Hold" Available in the graphics subsystems
Sweep, FFT, Waveform, Bar Graph, PESQ/POLQA, Impulse
Response
Sweep, FFT, Waveform, Bar Graph
The limit value or limit trace is no longer changed. If a trace file is loa-
ded with limit value or limit trace, the limit values from the file are not
applied but instead the previously set limit value or limit trace is used.
If "Hold" is selected when no valid limit trace data is already available,
a warning is issued and the last valid Limit selection is reset.
Remote command:
DISPlay:SWEep<n2>:A:LIMUpper:SOURce
on page 794
DISPlay:SWEep<n2>:B:LIMUpper:SOURce
on page 794
Source Value
Upper limit value if "Value" has been selected under "Source".
Available in the graphics subsystems
Curve, Spectrum and Bar Graph Display