MSRA configuration
R&S
®
FSWP-B1
54
User Manual 1177.5862.02 ─ 09
Sweep Points
In the I/Q Analyzer application, a specific frequency bandwidth is swept for a specified
measurement time. During this time, a defined number of samples (= "Record Length")
are captured. These samples are then evaluated by the applications. Therefore, in this
case the number of sweep points does not define the amount of data to be acquired,
but rather the number of trace points that are evaluated and displayed in the result dia-
grams.
Note:
As opposed to previous versions of the I/Q Analyzer, the sweep settings are now
window-specific. For some result displays, the sweep points may not be editable as
they are determined automatically, or restrictions may apply.
For the I/Q vector result display, the number of I/Q samples to record ("Record
Length") must be identical to the number of trace points to be displayed ("Sweep
Points"). Thus, the sweep points are not editable for this result display. If the "Record
Length" is edited, the sweep points are adapted automatically. For record lengths out-
side the valid range of sweep points, i.e. less than 101 points or more than 100001
points, the diagram does not show valid results.
Using fewer than 4096 sweep points with a detector other than Auto Peak may lead to
wrong level results.
Remote command:
[SENSe:]SWEep[:WINDow<n>]:POINts
Refresh (MSRA only)
This function is only available if the Sequencer is deactivated and only for
MSRA sec-
ondary applications
.
The data in the capture buffer is re-evaluated by the currently active secondary appli-
cation only. The results for any other secondary applications remain unchanged.
This is useful, for example, after evaluation changes have been made or if a new
sweep was performed from another secondary application. In this case, only that sec-
ondary application is updated automatically after data acquisition.
Note:
To update all active secondary applications at once, use the "Refresh All" func-
tion in the "Sequencer" menu.
Remote command:
Continuous Sweep/RUN CONT
After triggering, initiates data acquisition continuously until stopped. If the Sequencer is
off, only the evaluation for the currently displayed measurement channel is updated.
While the measurement is running, the "Continuous Sweep" softkey and the [RUN
CONT] key are highlighted. The running measurement can be aborted by selecting the
highlighted softkey or key again. The results are not deleted until a new measurement
is started.
Note:
Sequencer. If the Sequencer is active, the "Continuous Sweep" softkey only con-
trols the sweep mode for the currently selected channel; however, the sweep mode
only has an effect the next time the Sequencer activates that channel, and only for a
channel-defined sequence. In this case, a channel in continuous sweep mode is swept
repeatedly.
Data acquisition and bandwidth settings