RIGOL Front Panel Key Reference
2-24 User’s Guide for DSA1000 Series
2.2.2 Sweep
Sets parameters about the Sweep function, including Time, Auto SWT, Mode,
Numbers and Points.
2.2.2.1 Time
Sets the time interval for the analyzer to complete a sweep. Either Auto or Manual can
be used, the default is Auto.
Key Points:
In non-zero span, the analyzer uses the shortest sweep time on the basis of the
current RBW and VBW settings if Auto is selected.
Decreasing the sweep time would speed the measurement. However, an error
may be caused if the specified time is less than the minimum duration in Auto
coupling, and “UNCAL” is shown at the status bar of the screen.
You can modify this parameter using the numeric keys, knob, or direction keys.
For more details, please refer to “Parameter Input”.
Table 2-16 Sweep time
Parameter Explanation
Default 100 ms
Range* 20 us to 3000 s
Unit ks, s, ms, us, ns, ps
Knob Step Sweep time/100, Min = 1 ms
Direction Key Step in 1, 1.5, 2, 3, 5, 7.5 sequence
Note*: The minimum in non-zero span mode is 1-0 ms.
2.2.2.2 Auto SWT
Sets the auto type of the sweep time to Normal or Accy. The sweep will be faster if you
select Normal; while in Accy type, higher measurement precision can be obtained.
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