Rohde & Schwarz FSW13, User Manual

Page: 240 / 1150

Measurements
R&S
®
FSW
240 User Manual 1173.9411.02 ─ 19
By default, one peak per range is displayed. However, you can change the settings to:
●
Display all peaks
●
Display a certain number of peaks per range
●
Display only peaks that exceed a threshold ("Margin")
In addition to listing the peaks in the list evaluation, detected peaks can be indicated by
blue squares in the diagram.
Furthermore, you can save the evaluation list to a file.
Retrieving Results via Remote Control
The measured spurious values of the displayed trace can be retrieved using the
TRAC:DATA? SPUR
command (see
TRACe<n>[:
​
DATA]
​
on page 922).
5.7.3 Spurious Emissions Basics
Some background knowledge on basic terms and principles used in Spurious Emis-
sions measurements is provided here for a better understanding of the required config-
uration settings.
● Ranges and Range Settings ................................................................................. 240
● Limit Lines in Spurious Measurements ................................................................. 241
5.7.3.1 Ranges and Range Settings
Conditions for ranges
The following rules apply to ranges:
●
The minimum span of a range is 20 Hz.
●
The individual ranges must not overlap (but may have gaps).
●
The maximum number of ranges is 30 (in firmware versions < 1.60: 20 ranges).
●
The maximum number of sweep points in all ranges is limited to 100001.
If you set a span that is smaller than the overall span of the ranges, the measurement
includes only the ranges that lie within the defined span and have a minimum span of
20 Hz.
Spurious Emissions Measurement