Instrument Function
R&S
®
SMU200A
251Operating Manual 1007.9845.32 ─ 15
"Extern Step"
Sets a step-by-step sweep cycle. Each sweep step is triggered by an
external trigger signal (trigger source as described under "Extern Sin-
gle"). The step width is set below at entry field "Step Lin" or "Step Log".
If a different sweep mode was activated prior to the "Extern Step" mode,
the current sweep is stopped. The "Extern Step" sweep always starts at
the start frequency when triggered.
The "Reset Sweep" button resets the sweep to the start frequency.
Example:
SOUR:SWE:FREQ:MODE STEP
SOUR:SWE:FREQ:SPAC LIN
SOUR:SWE:FREQ:STEP:LIN 1MHz
TRIG:FSW:SOUR EXT
SOUR:FREQ:MODE SWE (External trigger)
"Extern Start/
Stop"
Sets an automaticly repeated sweep cycle that is started, stopped and
restartet by subsequent external trigger events.
The first external trigger signal starts the sweep (Start).
The next external trigger signal stops the sweep at the current frequency
(Stop).
The third external trigger signal starts the sweep at the start frequency
(Start).
If a different sweep mode was activated prior to the "Extern Start/Stop"
mode, the current sweep is stopped and the "Extern Start/Stop" sweep
starts at the start frequency when triggered.
The "Reset" button resets the sweep to the start frequency.
The external trigger signal is input at the rear of the instrument (BNC
connector INST TRIG).
Example:
SOUR:SWE:FREQ:MODE AUTO
TRIG:FSW:SOUR EAUT
SOUR:FREQ:MODE SWE (External trigger)
SCPI command:
[:SOURce<hw>]:SWEep[:FREQuency]:MODE on page 777
:TRIGger<hw>:FSWeep:SOURce on page 800
[:SOURce<hw>]:FREQuency:MODE on page 714
Execute Single Sweep - Frequency Sweep
Triggers the sweep manually. A manual sweep can only be triggered if "Mode Single" is
selected.
SCPI command:
[:SOURce<hw>]:SWEep[:FREQuency]:EXECute on page 777
RF Signal and Analog Modulations - RF Block
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