Measurements and Results
R&S
®
FSW
350User Manual 1173.9411.02 ─ 43
Phase
Selects the phase to be measured. Phase N and L1 are included in all four LISN.
Phase L2 and L3 are only included in four-line networks.
You can select one phase only for each measurement.
Remote command:
INPut<ip>:LISN:PHASe on page 998
150 kHz Highpass
Enables or disables the use of an additional 150 kHz highpass filter to protect the
R&S FSW LISN from excessive input.
The filter is available for the ENV 216 network only.
Remote command:
INPut<ip>:LISN:FILTer:HPASs[:STATe] on page 998
7.13.5 EMI Result Analysis
The R&S FSW EMI measurement provides functionality to analyze the results.
Marker Demodulation
The R&S FSW is able to demodulate AM and FM signals for acoustic tests and moni-
toring purposes.
When the demodulator function is active, the R&S FSW EMI measurement demodu-
lates the signal continuously (regardless of the "Continuous Demodulation" setting in
the marker function configuration). The demodulation begins as soon as a marker is
activated. During the initial measurement, demodulation is performed for the entire
measurement span; during the final measurement only the detected peak marker posi-
tions are demodulated (for the defined dwell time). You can listen to the results during
the measurement using headphones or the internal speaker.
For more information see Chapter 9.3.4.7, "Demodulating Marker Values and Providing
Audio Output (Marker Demodulation)", on page 545.
Limit Lines
General limit line functionality is provided by the R&S FSW base unit. The base unit
also provides various predefined limit lines that you can use for various applications.
The R&S FSW EMI measurement adds further predefined limit lines designed in com-
pliance with several EMC standards.
Limit line configuration is described in Chapter 9.4.2.2, "Limit Line Settings and Func-
tions", on page 563.
7.13.6 How to Perform EMI Measurements
The following step-by-step instructions demonstrate how to perform an EMI measure-
ment with the R&S FSW EMI measurement option.
Electromagnetic Interference (EMI) Measurement
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