User Manual

The Spectrum Application (RF Measurements)
R&S
®
FPL1000
397User Manual 1178.3370.02 ─ 03
RBW ...........................................................................................................................397
VBW ...........................................................................................................................397
Sweep Time ............................................................................................................... 398
Span/RBW ................................................................................................................. 398
RBW/VBW ..................................................................................................................398
Filter Type .................................................................................................................. 399
Default Coupling .........................................................................................................399
Sweep/Average Count ............................................................................................... 399
Sweep Points.............................................................................................................. 400
Optimization ............................................................................................................... 400
Sweep Type................................................................................................................ 401
Single Sweep / Run Single .........................................................................................401
Continuous Sweep / Run Cont ...................................................................................401
Continue Single Sweep ..............................................................................................402
Spectrogram Frames ................................................................................................. 402
└ Select Frame.................................................................................................402
└ Continue Frame ........................................................................................... 402
└ Frame Count ................................................................................................403
└ Clear Spectrogram .......................................................................................403
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 7.6.1.1, "Separating Signals by Selecting an Appro-
priate Resolution Bandwidth", on page 390.
For measurements on I/Q data in the frequency domain, the maximum RBW is 1 MHz.
Remote command:
[SENSe:]BANDwidth[:RESolution] on page 650
[SENSe:]BANDwidth[:RESolution]:AUTO on page 651
VBW
Defines the video bandwidth automatically or manually.
For more information see Chapter 7.6.1.2, "Smoothing the Trace Using the Video
Bandwidth", on page 391.
"Auto"
The video bandwidth is coupled to the resolution bandwidth. If the
resolution bandwidth is changed, the video bandwidth is automatically
adjusted.
"Manual"
For manual mode, define the bandwidth value. The available video
bandwidths are specified in the data sheet. Numeric input is always
rounded to the nearest possible bandwidth.
If the video bandwidth is defined manually, a green bullet is displayed
next to the "VBW" display in the channel bar.
Bandwidth, Filter and Sweep Configuration