The R&S SMA offers three different sweep types (frequency sweep, level sweep and LF sweep) to be activated alternatively. Each type has 6 modes which differ with respect to the sweep cycle mode (continuous, individual and step-by-step) and triggering mode (automatic, internal and external).
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A sweep is set in five basic steps which are shown below taking a frequency sweep as an example.
![]() | The LF sweep is activated and configured in the "Mod Gen" block. |
Set the sweep range ("Start Freq" and "Stop Freq" or "Center Freq" and "Span").
Select linear or logarithmic sweep spacing ("Spacing").
Set the step width ("Step Lin/Log") and dwell time ("Dwell Time").
Activate the sweep ("Mode" to Auto, Single, Step or Extern Single, Extern Step).
Trigger the sweep, except for Auto mode ("Execute Single Sweep", Current Frequency or External Trigger Signal).
![]() | It is recommended to switch off the display update for optimum sweep performance especially with short dwell times (see "Display Update"). |
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