Rohde & Schwarz FSW13, Руководство пользователя

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Measurements
R&S
®
FSW
296 User Manual 1173.9411.02 ─ 19
Table 5-19: Supported networks and phases
Network type Phases
Two-line V-networks
ESH3-Z5 N, L1
ENV216 N, L1
Four-line V-networks
ESH2-Z5 N, L1. L2, L3
ENV4200 N, L1. L2, L3
For the ENV216 network, a 150 kHz high pass filter is available to protect the input of
the R&S FSW.
5.13.3.5 Using Transducer Factors
The R&S FSW EMI measurement provides functionality to include transducer factors in
the test setup. Transducers are devices like antennas, probes or current probes that
are connected to the R&S
FSW to measure interferences or useful signals. The trans-
ducer converts the measured value such as field strength, current or RFI voltage into a
voltage across 50
Ω
. During the measurement, the transducer is considered a part of
the instrument.
A transducer usually has a frequency-dependent transducer factor that includes the
frequency response of the corresponding device. During level measurement, the trans-
ducer factor automatically converts the results into the correct unit and magnitude. A
transducer factor consists of a maximum of 1001 reference values. Each reference
value includes frequency, unit and level.
The R&S FSW EMI measurement adds several predefined transducer factors. In addi-
tion you can also create new and edit existing transducer factors.
For more information see chapter 9.2, "Basics on Transducer Factors" , on page 566.
5.13.3.6 Initial Measurement - Peak Search
The purpose of an initial peak search is to find signals with a high interference level
quickly. Usually the peak search is performed with a fast detector like the peak or aver-
age detector. The initial peak search is the basis for a possible refined measurement of
interferences with the detectors specific to EMI measurements.
The results of the initial peak search are shown in the Marker Table (see chap-
ter 5.13.2, "EMI Measurement Results" , on page 289).
Peak searches can be performed automatically or manually.
Automatic peak search
If enabled, the automatic peak search starts as soon as you select the EMI measure-
ment and one or more markers are active. During automatic peak search, the
Electromagnetic Interference (EMI) Measurement (R&S FSW-K54)