Command Description R&S SMB
1407.0806.32 6.78 E-2
SOURce:SWEep Subsystem
This subsystem contains the commands for checking the RF sweeps, i.e. the sweeps of the RF
generators. Sweeps are always triggered, except for the MANual sweep mode. The frequency sweep is
activated by the command SOURce:FREQuency:MODE SWEep, and the level sweep by the command
SOURce:POWer:MODE SWEep. All sweeps, including the LF sweep, can be set independently of each
other.
The keyword SOURce is optional with commands and can be omitted.
A sweep is set in several steps which are shown below taking a frequency sweep as an example:
1. Set the sweep range.
[SOURce:]FREQuency:CENTer 200 MHz
[SOURce:]FREQuency:SPAN 300 MHz
2. Select linear or logarithmic spacing.
[SOURce:]SWEep[:FREQuency]:SPACing LIN
3. Set the step width and dwell time.
[SOURce:]SWEep[:FREQuency]:STEP:LINear 20 MHz
[SOURce:]SWEep[:FREQuency]:DWELl 12 ms
4. Select the trigger mode.
TRIGger:FSWeep:SOURce SINGle
5. Select the sweep mode and activate the sweep.
[SOURce:]SWEep[:FREQuency]:MODE AUTO
[SOURce:]FREQuency:MODE SWEep
6. Trigger the sweep.
[SOURce:]SWEep[:FREQuency]:EXECute
Note:
It is recommended to switch off the GUI update for optimum sweep performance especially with
short dwell times (SYSTem:DISPlay:UPDate OFF).
Command Parameters Default
unit
Remark
[SOURce:]SWEep[:FREQuency]:DWELl 2 ms ... 10 s s
[SOURce:]SWEep[:FREQuency]:EXECute -
[SOURce:]SWEep[:FREQuency]:MODE AUTO | MANual | STEP
[SOURce:]SWEep[FREQuency]:POINts <numeric_value>
[SOURce:]SWEep[:FREQuency]:SPACing LINear | LOGarithmic
[SOURce:]SWEep[:FREQuency]:STEP[:LINear] 0 ... (STOP - STARt) Hz
[SOURce:]SWEep[:FREQuency]:STEP:LOGarithmic 0.01 ... 9999 PCT
[SOURce:]SWEep:POWer:DWELl 2 ms...10 s s
[SOURce:]SWEep:POWer:EXECute -
[SOURce:]SWEep:POWer:MODE AUTO | MANual | STEP
[SOURce:]SWEep:POWer:POINts <numeric_value>
[SOURce:]SWEep:POWer:SPACing:MODE
Query only
[SOURce:]SWEep:POWer:STEP:[:LOGarithmic] 0.1 ...20 dB
[SOURce:]SWEep:RESet[:ALL]
No query
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