Remote control commands
R&S
®
SMM100A
950
User Manual 1179.1341.02 ─ 05
●
The keyword
[:FREQuency]
can be omitted, then the commands are SCPI-com-
pliant.
●
To activate an RF sweep mode, use the following commands:
–
RF frequency sweep:
SOURce:FREQuency:MODE SWEep
(
SOURce:FREQuency:MODE CW
(off))
–
RF level sweep:
SOURce:POWer:MODE SWEep
(
SOURce:POWer:MODE CW
(off))
–
RF combined sweep:
SOURce:FREQuency:MODE SWEep
(
SOURce:FREQuency:MODE CW
(off)
●
All sweeps can be set independently of each other.
See
Chapter 7.10.1, "Signal generation and triggering in the sweep and list modes"
Example: Setup an RF frequency or power sweep
The following example shows a command sequence to set up an RF frequency sweep,
triggered by the execute command. For an RF power sweep, replace
FREQuency
in
the
SWEep
commands with
POWer
.
Exceptions are the power spacing (defined with
LINear
only) and the power step
width (defined with
LOGarithmic
only).
// Reset the instrument to start from an initial state
//
Switch off display update to improve performance
// (especially with short dwell times)
// Set the sweep mode (first two commands) and the sweep range
// Select linear spacing
// Select the waveform shape for the frequency sweep
*RST; *CLS
SYSTem:DISPlay:UPDate OFF
TRIGger1:FSWeep:SOURce SINGle
SOURce1:SWEep:FREQuency:MODE AUTO
SOURce1:FREQuency:SPAN 300 MHz
SOURce1:FREQuency:CENTer 200 MHz
// Alternatively use
// SOURce1:FREQuency:STARt 50 MHz
// SOURce1:FREQuency:STOP 350 MHz
SOURce1:SWEep:FREQuency:SPACing LINear
SOURce1:SWEep:FREQuency:SHAPe SAWTooth
// Activate change to start frequency while waiting for next trigger
// Prerequisites: sweep mode single and sweep waveform sawtooth
SOURce1:SWEep:FREQuency:RETRace 1
// Alternatively reset all sweeps to their initial value
SOURce1:SWEep:RESet:ALL
// Set the step width and dwell time
SOURce1:SWEep:FREQuency:STEP:LINear 1 MHz
SOURce subsystem