R&S FSW Series, User Manual

Page: 347 / 1450

Measurements and Results
R&S
®
FSW
347 User Manual 1173.9411.02 ─ 43
The detector to be used for the final EMI test can be defined differently for each fre-
quency, thus the detector is configured in the EMI marker settings, see
"Final Test
Detector" on page 345.
Filter Type ................................................................................................................... 347
RBW ............................................................................................................................347
Automatic Peak Search ...............................................................................................348
Dwell Time ...................................................................................................................348
Frequency Axis Scaling ...............................................................................................348
Res BW CISPR ........................................................................................................... 348
Res BW MIL ................................................................................................................ 348
Filter Type
Defines the filter type.
The following filter types are available:
●
Normal (3dB)
●
Channel
●
RRC
●
5-Pole (not available for sweep type "FFT")
●
CISPR (6 dB) - requires EMI (R&S FSW-K54) option
●
MIL Std (6 dB) - requires EMI (R&S FSW-K54) option
For more information see Chapter 8.5.1.6, "Which Data May Pass: Filter Types" ,
on page 463.
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 7.13.3.1, "Resolution Bandwidth and Filter Types" , on page 334.
The RBW filter configured in the bandwidth settings is identical to the filter configured
in the EMI configuration.
Remote command:
[SENSe:]BANDwidth[:RESolution]:TYPE
on page 1032
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 8.5.1.1, "Separating Signals by Selecting an Appro-
priate Resolution Bandwidth" , on page 460.
Note: Restrictions.
●
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 7.13.3.1, "Resolution Bandwidth and Filter Types" ,
on page 334).
Electromagnetic Interference (EMI) Measurement