Instrument Function
R&S
®
SMU200A
372Operating Manual 1007.9845.32 ─ 15
Arm - Digital Modulation
Stops signal generation. This button appears only with "Running" signal generation in the
"Armed_Auto" and "Armed_Retrigger" trigger modes.
Signal generation can be restarted by a new trigger (internally with "Execute Trigger" or
externally).
SCPI command:
[:SOURce<hw>]:BB:DM:TRIGger:ARM:EXECute on page 626
Execute Trigger - Digital Modulation
Executes trigger manually. A manual trigger can be executed only when an internal trig-
ger source and a trigger mode other than "Auto" have been selected.
SCPI command:
[:SOURce<hw>]:BB:DM:TRIGger:EXECute on page 627
Trigger Source - Digital Modulation
Selects trigger source.
"Internal"
The trigger event is executed by "Execute Trigger". As a precondition a
trigger mode other than "Auto" must be selected.
"Internal (Base-
band A/B)"
The trigger event is executed by the trigger signal from the second path
(two-path instruments only).
"External
(TRIGGER)"
The trigger event is executed with the aid of the active edge of an external
trigger signal. The trigger signal is supplied via the TRIGGER connector.
The polarity, the trigger threshold and the input impedance of the TRIG-
GER input can be set in the GLOBAL TRIGGER SETTINGS menu.
SCPI command:
[:SOURce<hw>]:BB:DM:TRIGger:SOURce on page 631
Sync. Output to External Trigger
(enabled for "Trigger Source" External)
Enables/disables output of the signal synchronous to the external trigger event.
"On"
Corresponds to the default state of this parameter.
The signal calculation starts simultaneously with the external trigger
event but because of the instrument’s processing time the first samples
are cut off and no signal is outputted. After elapsing of the internal pro-
cessing time, the output signal is synchronous to the trigger event.
Baseband Signal - Baseband Block
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