Rohde & Schwarz R&S SMB100B - Page 65

RF signal configuration
R&S
®
SMB100B
65User Manual 1178.3711.02 ─ 08
"Pep value greater than the defined limit." However, the level indication in the status
bar is not affected.
The setting is not affected by an instrument preset ([Preset] key or *RST) and the
"Save/Recall" function. It is reset only by factory preset.
Remote command:
[:SOURce<hw>]:POWer:LIMit[:AMPLitude] on page 494
Offset
Sets a level offset.
This value represents the level shift of a downstream instrument, like, for example, an
attenuator or an amplifier.
The "Level" value displayed in the status bar is the resulting level, as it is at the output
of the downstream instrument. The level at the R&S SMB100B RF output is not
changed.
See "RF frequency and level display with a downstream instrument" on page 59.
Remote command:
[:SOURce<hw>]:POWer[:LEVel][:IMMediate]:OFFSet on page 497
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 50 Ω output con-
nector, due to changed level settings.
RF level settings