Measurements
R&S
®
FSW
303User Manual 1173.9411.02 ─ 19
Note: The EMI-specific filter types are available if the EMI (R&S FSW-K54) measure-
ment option is installed, even if EMI measurement is not active. For details see chap-
ter 5.13.3.1, "Resolution Bandwidth and Filter Types", on page 290.
The RBW filter configured in the bandwidth settings is identical to the filter configured
in the EMI configuration.
Remote command:
[SENSe:]BANDwidth|BWIDth[:RESolution]:TYPE on page 837
RBW
Defines the resolution bandwidth. The available resolution bandwidths are specified in
the data sheet. Numeric input is always rounded to the nearest possible bandwidth.
If "AUTO" is selected, the resolution bandwidth is coupled to the selected span (for
span > 0). If the span is changed, the resolution bandwidth is automatically adjusted.
If the resolution bandwidth is defined manually, a green bullet is displayed next to the
"RBW" display in the channel bar.
For more information see chapter 6.5.1.1, "Separating Signals by Selecting an Appro-
priate Resolution Bandwidth", on page 403.
For measurements on I/Q data in the frequency domain, the maximum RBW is 1 MHz.
For EMI measurements using the quasipeak detector, the 1 MHz RBW filter is not
available (see chapter 5.13.3.1, "Resolution Bandwidth and Filter Types",
on page 290).
Remote command:
[SENSe:]BANDwidth|BWIDth[:RESolution] on page 836
[SENSe:]BANDwidth|BWIDth[:RESolution]:AUTO on page 836
Automatic Peak Search
If activated, a peak search is performed automatically for all active markers after each
sweep.
If Auto peak search and limit lines are active, the active markers are set to the peak
delta values between the measured signal and the limit lines.
Note: The general search functions Auto Max / Min Peak Search are not available for
EMI measurements.
Remote command:
CALCulate:MARKer:FUNCtion:FMEasurement:PSEarch|PEAKsearch:AUTO
on page 805
Dwell Time
Sets the dwell time for the EMI marker measurement.
For more information see chapter 5.13.3.2, "Detectors and Dwell Time", on page 291.
Remote command:
CALCulate:MARKer:FUNCtion:FMEasurement:DWELl on page 805
Frequency Axis Scaling
Switches between linear and logarithmic scaling for the frequency axis.
Electromagnetic Interference (EMI) Measurement (R&S
FSW-K54)
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