RF Signal Configuration
R&S
®
SMA100B
70
User Manual 1178.3834.02 ─ 03
Remote command:
Note:
The SCPI command
[:SOURce<hw>]:POWer[:LEVel][:IMMediate][:
sets the level of the "Level" display.
This means, the level containing offset.
Limit
Sets an upper limit for the RF output power.
You can use this value to protect your DUT from damage due to high input power. If
you enter an RF level above this value, the instrument limits the output power to this
specified value, and generates the warning message:
"Pep value greater than the defined limit." However, the level indication in the status
bar is not affected.
The value 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]
Offset
Sets a level offset.
This value represents the level shift of a downstream instrument, like for example a 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
SMA100B RF output is not
changed.
See
"RF frequency and level display with a downstream instrument"
Remote command:
[:SOURce<hw>]:POWer[:LEVel][:IMMediate]:OFFSet
Setting Characteristics
Selects additional quality characteristics to optimize the behavior of the RF signal level
for the corresponding 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 Level Settings"
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.
RF Level Settings
