Rohde & Schwarz FSW13, User Manual

Page: 797 / 1150

Remote Commands
R&S
®
FSW
797 User Manual 1173.9411.02 ─ 19
CALCulate<n>:MARKer<m>:FUNCtion:HARMonics:NHARmonics <NoHarmonics>
This command selects the number of harmonics that the R&S FSW looks for.
Parameters:
<NoHarmonics> Range: 1 to 26
*RST: 10
Manual operation: See "No. of Harmonics" on page 274
CALCulate<n>:MARKer<m>:FUNCtion:HARMonics:PRESet
This command initiates a measurement to determine the ideal configuration for the har-
monic distortion measurement.
The method depends on the span.
●
Frequency domain (span > 0)
Frequency and level of the first harmonic are determined and used for the mea-
surement list.
●
Time domain (span = 0)
The level of the first harmonic is determined. The frequency remains unchanged.
Usage: Event
Manual operation: See "Adjust Settings" on page 275
11.5.10.3 Performing the Measurement
The following commands are required to perform a harmonic distortion measurement:
INITiate[:
​
IMMediate]
​
on page 694, see chapter 11.5.1, "Performing Measure-
ments" , on page 692
11.5.10.4 Retrieving Results
The following commands retrieve the results of the harmonic distortion measurement.
CALCulate<n>:MARKer<m>:FUNCtion:HARMonics:DISTortion?
........................................ 797
CALCulate<n>:MARKer<m>:FUNCtion:HARMonics:LIST?
.................................................798
CALCulate<n>:MARKer<m>:FUNCtion:HARMonics:DISTortion? TOTal
This command queries the total harmonic distortion of the signal.
To get a valid result, you have to perform a complete measurement with synchroniza-
tion to the end of the measurement before reading out the result. This is only possible
for single sweeps. See also
INITiate:
​
CONTinuous
​
on page 694.
Return values:
<Result> <Distortion_%>,<Distortion_dB>
Pair of values, one showing the THD in %, one in dB.
Configuring and Performing Measurements