Ronde & Schwarz 1304.0004K03, User Manual

Page: 270 / 1071

The Spectrum Application (RF Measurements)
R&S
®
FPL1000
270 User Manual 1178.3370.02 ─ 11
For more information, see "Controlling V-Networks (LISN)" on page 258.
LISN Type ................................................................................................................... 270
Phase .......................................................................................................................... 270
150 kHz Highpass ....................................................................................................... 270
LISN Type
Selects the network type and activates output to the network via the user port of the
R&S
FPL1000. The network type determines the supported phases (see Table 6-19 ).
"Off" disables LISN control and output.
Remote command:
INPut<ip>:LISN[:TYPE]
on page 723
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 722
150 kHz Highpass
Enables or disables the use of an additional 150 kHz highpass filter to protect the
R&S FPL1000 LISN from excessive input.
The filter is available for the ENV 216 network only.
Remote command:
INPut<ip>:LISN:FILTer:HPASs[:STATe]
on page 722
6.2.14.5 EMI Result Analysis
The EMI measurement provides functionality to analyze the results.
Marker demodulation
The R&S FPL1000 is able to demodulate AM and FM signals for acoustic tests and
monitoring purposes.
When the demodulator function is active, the EMI measurement demodulates the sig-
nal 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 positions are
demodulated (for the defined dwell time). You can listen to the results during the mea-
surement using headphones or the internal speaker.
In FFT mode, demodulation is only performed during the final measurement. You do
not hear any results during the initial measurement.
This feature requires the optional additional interfaces (R&S FPL1-B5).
Measurements and Results