Operating the Instrument
R&S
®
FSW
87Getting Started 1338.4102.02 ─ 08
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 auto-
matic coupling. In addition, the UNCAL flag is shown. In this case,
the sweep time must be increased.
For FFT sweeps, an estimated duration for data capture and pro-
cessing is indicated behind the sweep time in the channel bar.
Meas Time/AQT Measurement (acquisition) time, calculated from analysis band-
width 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 dis-
played)
Mode Indicates which sweep mode type is selected:
●
"Auto FFT": automatically selected FFT sweep mode
●
"Auto sweep": automatically selected swept sweep mode
●
"Sweep": manually selected frequency 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 auto-
matic 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
The channel bar above the diagram not only displays the channel-specific set-
tings. It also displays information on instrument settings that affect the measure-
ment results even though it is not immediately apparent from the display of the
measured values. This information is displayed in gray font and only when appli-
cable for the current measurement, as opposed to the channel-specific settings
that are always displayed.
Understanding the Display Information
To Next Page
Loading...
