Rohde & Schwarz FPL1000 Series, Руководство пользователя

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Remote Commands
R&S
®
FPL1000
614 User Manual 1178.3370.02 ─ 03
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.
Suffix:
<n>
.
Window
<m> Marker
Usage: Event
Manual operation: See " Adjust Settings " on page 349
8.6.9.3 Performing the Measurement
The following commands are required to perform a harmonic distortion measurement:
INITiate<n>[:IMMediate]
on page 536, see Chapter 8.6.1, "Performing Measure-
ments" , on page 534
8.6.9.4 Retrieving Results
The following commands retrieve the results of the harmonic distortion measurement.
CALCulate<n>:MARKer<m>:FUNCtion:HARMonics:DISTortion?
........................................ 614
CALCulate<n>:MARKer<m>:FUNCtion:HARMonics:LIST?
.................................................615
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 sweep mode.
See also
INITiate<n>:CONTinuous
on page 536.
Suffix:
<n>
.
Window
<m> Marker
Return values:
<Result> <Distortion_%>,<Distortion_dB>
Pair of values, one showing the THD in %, one in dB.
Configuring and Performing Measurements