Measurements and Results
R&S
®
FSW
224User Manual 1173.9411.02 ─ 43
Notch Bandwidth (Absolute / Relative to Channel BW).............................................. 225
Generator Notch State................................................................................................ 225
Upload all Notch Settings to Generator.......................................................................226
Query all Notch Settings from Generator....................................................................226
Channel Bandwidth
Defines the channel bandwidth on which the total power density is based. The band-
width is positioned around the currently defined Center Frequency.
To specify a different bandwidth for total power density calculation, or to shift the band-
width, define an Integration Bandwidth manually.
Remote command:
[SENSe:]NPRatio:CHANnel:BWIDth on page 902
Integration Bandwidth
Defines a bandwidth other than the channel bandwidth to be used for total power den-
sity calculation. Select the "Manual" option and define the bandwidth manually.
In auto mode, the integration bandwidth is the same as the channel bandwidth.
Notches are deducted from the results.
In manual mode, you can customize the integration bandwidth. The results include the
power levels measured within notches, however.
A "Frequency Offset" shifts the bandwidth away from the currently defined Center Fre-
quency.
Remote command:
[SENSe:]NPRatio:CHANnel:INTegration:BWIDth on page 903
[SENSe:]NPRatio:CHANnel:INTegration:AUTO on page 903
[SENSe:]NPRatio:CHANnel:INTegration:FREQuency:OFFSet on page 904
Number of Notches
Defines the number of notches for which results are determined. A maximum of 25
notches can be defined. Note that even if bandwidths for further notches are defined,
only the number specified here are actually calculated and displayed.
If Generator Control State (FSW -> SMW) is enabled in the generator settings, the
specified number of notches is sent to the generator on upload. An LED next to the
setting indicates whether the setting was adjusted on the connected instrument suc-
cessfully.
See Chapter 7.5.3, "NPR Results", on page 221 for more information about how
notches are treated in the measurement.
Remote command:
[SENSe:]NPRatio:NOTCh<notch>:COUNt on page 904
CONFigure:GENerator:NPRatio:NOTCh<notch>:COUNt:CSTate? on page 911
Generator Notch Filter State
Activates or deactivates a notch filter on the signal generator.
Noise Power Ratio (NPR) Measurement
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