The Spectrum Application (RF Measurements)
R&S
®
FPL1000
272
User Manual 1178.3370.02 ─ 11
7. Define the dwell time for which each marker position is measured during the final
measurement.
8. To obtain an overview of peak values in the input signal during the initial measure-
ment, activate the "Auto Peak Search".
As soon as a sweep is started, the R&S
FPL1000 looks for the strongest peaks in
the frequency range you are measuring and positions one of the active markers on
those peaks. The number of active markers determines the number of detected
peaks; no additional markers are activated.
9. Define the type of scaling for the frequency axis according to the definition of the
limit lines in the standard.
10. Optionally, select the "LISN Config" to configure a LISN control.
(This feature requires the optional additional interfaces R&S
FPL1-B5).
11. Configure the EMI measurement markers.
a) Select "Marker Config".
b) Activate the number of markers or delta markers you want to analyze.
c) For each active marker, select a detector to be used for the "Final Test", that is:
the subsequent EMI measurement at the marker position.
d) If you already know which frequencies cause irregular values, set the markers
to those positions. (Otherwise perform an initial peak search to obtain an over-
view, see
12. Optionally, select the "Marker Demod Config" to configure continuous marker
demodulation.
Demodulation begins immediately with the next measurement. During the initial
measurement, demodulation is performed for the entire measurement span; during
the final measurement only the detected peak marker positions are demodulated
(for the defined dwell time).
(This feature requires the optional additional interfaces R&S
FPL1-B5).
In FFT mode, demodulation is only performed during the final measurement. You
do not hear any results during the initial measurement.
13. Increase the number of sweep points for the EMI measurement.
a) Select [SWEEP] on the front panel.
b) Select the "Sweep Config" .
c) Set the number of "Sweep Points" so that the distance between two sweep
points is smaller than RBW/3.
14. Optionally, select or configure limit lines to check the marker results against.
a) Select [Lines] and then the "Lines Config" , then select the "Lines Config" tab.
Measurements and Results
