Ronde & Schwarz 1304.0004.03, Руководство пользователя

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The Spectrum Application (RF Measurements)
R&S
®
FPL1000
237 User Manual 1178.3370.02 ─ 09
If harmonic measurement was performed in the time domain, this function adjusts the
reference level only.
Remote command:
CALCulate<n>:MARKer<m>:FUNCtion:HARMonics:PRESet
on page 722
7.2.11.5 How to Determine the Harmonic Distortion
In Chapter 7.9.6, "Measurement Example: Measuring Harmonics Using Marker Func-
tions" , on page 384, measuring harmonics was described using marker functions. This
task can be performed much simpler using the Harmonic Distortion measurement, as
described in the following procedure.
For remote operation, see
Chapter 11.6.11.5, "Example: Measuring the Harmonic Dis-
tortion" , on page 723.
1. Select the "Harmonic Distortion" measurement function from the "Select Measure-
ment" dialog box.
2. Define the number of harmonics to be determined using the "Number of Harmon-
ics" softkey.
3. Perform a sweep.
The trace for the determined harmonics are displayed in the diagram, separated by
red display lines. The measured power for each harmonic in relation to the funda-
mental is indicated in the result table.
4. If the signal changes significantly during or after the harmonics measurement, use
the "Adjust Settings" function to adjust the settings automatically and restart the
measurement.
7.2.12 Third Order Intercept (TOI) Measurement
The third order intercept point of the R&S FPL1000 can be determined if a two-tone
signal with equal carrier levels is applied to the input.
CALCulate<n>:MARKer<m>:FUNCtion:TOI:RESult?
on page 725
● About the TOI Measurement .................................................................................238
● TOI Basics .............................................................................................................238
● TOI Results ........................................................................................................... 242
● TOI Configuration ..................................................................................................243
● How to Determine the Third Order Intercept .........................................................244
● Measurement Example – Measuring the R&S FPL1000's Intrinsic Intermodulation
.............................................................................................................................. 244
Measurements and Results