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R&S FSW Series User Manual

R&S FSW Series
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Measurements and Results
R&S
®
FSW
331User Manual 1173.9411.02 ─ 43
7.12.5 How to Determine the AM Modulation Depth
The following step-by-step instructions demonstrate how to determine the AM modula-
tion depth.
For remote operation, see Chapter 14.5.13.2, "Example: Measuring the AM Modulation
Depth", on page 994.
1. Apply a modulated carrier signal to the R&S FSW input.
2. On the R&S FSW, press the [MEAS] key.
3. Select the "AM Modulation Depth" measurement function from the "Select Mea-
surement" dialog box.
The calculated AM Modulation Depth is indicated in the marker information. The
markers required for calculation are displayed in the marker table.
4. If the signal changes significantly during or after the AM Modulation Depth mea-
surement, use the "Search Signals" function to start a new peak search automati-
cally and restart the calculation of the AM Modulation Depth.
7.13 Electromagnetic Interference (EMI) Measurement
The optional electromagnetic interference (EMI) measurement (R&S FSW-K54) is suit-
able for measurements according to commercial and military electromagnetic compati-
bility (EMC) standards. The functionality of the measurement is particularly useful in
research and development.
The EMI measurement features:
EMI marker functionality
Marker demodulation
Measurement bandwidths and detectors for EMI measurements
Logarithmic scaling of the frequency axis
Additional predefined limit lines for EMC standards
Predefined transducer factors
Additional amplitude units, normalized to 1 MHz
LISN control
About the EMI Measurement................................................................................ 332
EMI Measurement Results....................................................................................332
EMI Measurement Basics..................................................................................... 333
EMI Measurement Configuration.......................................................................... 342
EMI Result Analysis.............................................................................................. 350
How to Perform EMI Measurements.....................................................................350
Measurement Example: Measuring Radio Frequency Interference......................353
Optimizing and Troubleshooting EMI Measurements........................................... 355
Electromagnetic Interference (EMI) Measurement

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R&S FSW Series Specifications

General IconGeneral
BrandR&S
ModelFSW Series
CategoryMeasuring Instruments
LanguageEnglish

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