R&S FSW Series, Руководство пользователя

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Common Measurement Settings
R&S
®
FSW
467 User Manual 1173.9411.02 ─ 43
RBW ............................................................................................................................467
VBW ............................................................................................................................ 467
Sweep Time ................................................................................................................ 468
Span/RBW .................................................................................................................. 468
RBW/VBW ...................................................................................................................468
Filter Type ................................................................................................................... 469
Default Coupling ..........................................................................................................469
Sweep/Average Count ................................................................................................ 470
Sweep Points .............................................................................................................. 470
Optimization ................................................................................................................ 470
Sweep Type ................................................................................................................ 471
FFT Subspans .............................................................................................................472
Single Sweep / Run Single ..........................................................................................472
Continuous Sweep / Run Cont ....................................................................................472
Continue Single Sweep ...............................................................................................473
Spectrogram Frames .................................................................................................. 473
└ Select Frame .................................................................................................473
└ Continue Frame ............................................................................................ 473
└ Frame Count ................................................................................................. 474
└ Clear Spectrogram ........................................................................................474
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).
Remote command:
[SENSe:]BANDwidth[:RESolution]
on page 1031
[SENSe:]BANDwidth[:RESolution]:AUTO
on page 1031
VBW
Defines the video bandwidth automatically or manually.
For more information see Chapter 8.5.1.2, "Smoothing the Trace Using the Video
Bandwidth" , on page 460.
"Auto" The video bandwidth is coupled to the resolution bandwidth. If the
resolution bandwidth is changed, the video bandwidth is automatically
adjusted.
Bandwidth, Filter and Sweep Configuration