Rohde & Schwarz SMIQ02B - Operating Modes (MODE); Selecting the Sweep Run (SPACING LIN, LOG)

SMIQ Sweep
1125.5555.03 2.393 E-9
2.26.2 Selecting the Sweep Run (SPACING LIN, LOG)
The sweep run, linear or logarithmic, can be selected using SPACING. For the RF and LF sweep, a
linear or logarithmic run is possible. For level sweep, only the logarithmic run is possible.
With the logarithmic sweep, step width STEP is equal to a constant fraction of the present setting. The
logarithmic step width is entered in unit % with RF or LF sweep, in unit dB with level sweep.
2.26.3 Operating Modes (MODE)
The following sweep operating modes are available:
AUTO
Sweep from the starting point to the stop point, with automatic restart at the starting
point. If another sweep operating mode was activated prior to the AUTO operating
mode, continuation is made from the current sweep setting.
IEC/IEEE-bus commands:
RF sweep: LF sweep: Level sweep:
SOUR:FREQ:MODE SWE SOUR2:FREQ:MODE SWE SOUR:POW:MODE SWE
SOUR:SWE:MODE AUTO SOUR2:SWE:MODE AUTO SOUR:SWE:POW:MODE AUTO
TRIG:SOUR AUTO TRIG2:SOUR AUTO TRIG:SOUR AUTO
SINGLE
Single run from the starting point to the stop point. If SINGLE is selected, the run is
not started yet. Function EXECUTE SINGLE SWEEP
to be executed, which can
be used to start the run, is displayed below the MODE line.
IEC/IEEE-bus commands:
RF sweep: LF sweep: Level sweep:
SOUR:FREQ:MODE SWE SOUR2:FREQ:MODE SWE SOUR:POW:MODE SWE
SOUR:SWE:MODE AUTO SOUR2:SWE:MODE AUTO SOUR:SWE:POW:MODE AUTO
TRIG:SOUR SING TRIG2:SOUR SING TRIG:SOUR SING
STEP
Step-by-step, manual run within the sweep limits. Activating STEP stops a running
sweep and the cursor wraps to the indication value of CURRENT. The sweep run
can now be controlled upwards or downwards in discrete steps using the rotary knob
or the numeric keys.
IEC/IEEE-bus commands:
RF sweep: LF sweep: Level sweep:
SOUR:FREQ:MODE SWE SOUR2:FREQ:MODE SWE SOUR:POW:MODE SWE
SOUR:SWE:MODE STEP SOUR2:SWE:MODE STEP SOUR:SWE:POW:MODE STEP
TRIG:SOUR SING TRIG2:SOUR SING TRIG:SOUR SING
EXT-SINGLE
Single run from the starting point to the stop point as in the case of SINGLE, but
triggered by an external trigger signal.
IEC-bus short commands:
RF sweep: LF sweep: Level sweep:
SOUR:FREQ:MODE SWE SOUR2:FREQ:MODE SWE SOUR:POW:MODE SWE
SOUR:SWE:MODE AUTO SOUR2:SWE:MODE AUTO SOUR:SWE:POW:MODE AUTO
TRIG:SOUR EXT TRIG2:SOUR EXT TRIG:SOUR EXT