List and sweep mode
R&S
®
SMA100B
197User Manual 1178.3834.02 ─ 09
Step Count
In "RF Combined Mode", defines the number of sweeps to be executed in Mode > Sin-
gle.
To start the sweep cycles, select Execute Single.
Remote command:
[:SOURce<hw>]:SWEep:COMBined:COUNt on page 708
Spacing
Indicates that the instrument distributes the level steps linearly (straight proportional),
i.e. the level steps have the same size.
To determine the step size, use the parameter Step.
Remote command:
n.a.
Step
Sets the step width for the RF level sweep in dB.
The "RF level sweep" mode increases or decreases the level value linearly by the set
value.
Remote command:
[:SOURce<hw>]:SWEep:POWer:STEP[:LOGarithmic] on page 702
Setting Characteristics
Selects additional quality characteristics to optimize the behavior of the RF signal level
for the specific application.
"Auto"
Sets the RF output level automatically according to the selected
mode.
In this mode, the instrument provides the highest dynamic range and
fastest setting times, as specified in the data sheet.
The RF signal is shortly blanked when the step attenuator is switch-
ing.
"Uninterrupted"
Suppresses blanking at level transitions. Frequency transitions can
lead to an RF level blanking due to hardware specific switching
points.
This mode reduces the dynamic range of the instrument. The step
attenuator is fixed.
"Strictly Monotone"
Executes signal level changes monotonically increasing or decreas-
ing.
The setting makes sure that increasing the level value exclusively
results in an increased output level, and vice versa.
All electronic switches, which might affect the monotonicity are fixed.
The operation mode is useful for applications using level searching
algorithms which rely on a strictly monotonous behavior.
"Constant-VSWR"
Suppresses output impedance variations at the RF output connector,
due to changed level settings.
Sweep mode settings
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