Getting Started
R&S
®
FSW
76
User Manual 1173.9411.02 ─ 19
An orange "IQ" (in MSRA mode only) indicates that the results displayed in the MSRA
application(s) no longer match the data captured by the MSRA Master. The "IQ" disap-
pears after the results in the application(s) are refreshed.
The icon indicates the currently active channel during an automatic measurement
sequence (
Sequencer
functionality).
Channel-specific settings
Beneath the channel name, information on channel-specific settings for the measure-
ment are displayed in the
channel bar
. Channel information varies depending on the
active application.
In the Spectrum application, the R&S
FSW shows the following settings:
Table 3-5: Channel settings displayed in the channel bar in the Spectrum application
Ref Level
Reference level
m.+el.Att
Mechanical and electronic RF attenuation that has been set.
Ref Offset
Reference level offset
SWT
Sweep time that has been set.
If the sweep time does not correspond to the value for automatic coupling,
a bullet is displayed in front of the field. The color of the bullet turns red if
the sweep time is set below the value for automatic coupling. In addition,
the UNCAL flag is shown. In this case, the sweep time must be increased.
Meas Time
Measurement time, calculated from analysis bandwidth and number of
samples (for statistics measurements)
RBW
Resolution bandwidth that has been set.
If the bandwidth does not correspond to the value for automatic coupling,
a green bullet appears in front of the field.
VBW
Video bandwidth that has been set.
If the bandwidth does not correspond to the value for automatic coupling,
a green bullet is displayed in front of the field.
AnBW
Analysis bandwidth (for statistics measurements)
Compatible
Compatible device mode (FSP, FSU, default; default not displayed)
Mode
Indicates which sweep mode type is selected:
●
"Auto FFT": automatically selected FFT sweep mode
●
"Auto sweep": automatically selected swept sweep mode
●
"FFT": manually selected FFT sweep mode
Icons for individual settings
A bullet next to the setting indicates that user-defined settings are used, not automatic
settings. A green bullet indicates this setting is valid and the measurement is correct. A
red bullet indicates an invalid setting that does not provide useful results.
Common settings
In addition to the channel-specific settings, the channel bar above the diagram also
displays information on instrument settings that affect the measurement results even
though this is not immediately apparent from the display of the measured values. This
Operating the Instrument
