RF Measurements CMU
1100.4903.12 6.28 E-10
Subsystem TRIGger (Trigger Mode)
The subsystem TRIGger determines the trigger mode. It corresponds to the table section Trigger in the
Analyzer tab of the Connection Control menu and the Analyzer Level – Trigger... hotkeys in the Spec-
trum or Power menu.
TRIGger[:SEQuence]:SOURce <Source> Source
<Source>
Parameter description Def. value Default unit FW vers.
IMMediate |
RFPower |
IFPower |
EXTern
Free run, continuous measurement (without refer-
ence to input signal)
The RF signal controls triggering depending on the
trigger level (TRIG:SEQ:THR)
The IF signal controls triggering depending on the
trigger level (TRIG:SEQ:THR)
External triggering (via connector AUX3)
IMM –
V1.15
Command description
This command determines the trigger source.
TRIGger[:SEQuence]:THReshold:RFPower <Threshold> Level – RF Power
<Threshold>
Parameter description Def. value Default unit FW vers.
LOW |
MEDium |
HIGH
Low trigger threshold (RF Max. Level – 26 dB)
Medium trigger threshold (RF Max. Level – 16 dB)
High trigger threshold (RF Max. Level – 6 dB)
MEDium –
V3.10
Command description
This command sets the RF input signal level at which the measurement is triggered relative to the maximum RF
input level; see [SENSe:]LEVel:MAXimum. The setting has effect for trigger source RFPower only (see
TRIG:SEQ:SOUR).
TRIGger[:SEQuence]:THReshold:IFPower <Threshold> Level – IF Power
<Threshold>
Parameter description Def. value Default unit FW vers.
–47 dB to 0 dB IF power threshold –26 dB V3.10
Command description
This command sets the IF signal level at which the measurement is triggered. The IF power threshold is defined
relative to the maximum RF input level; see [SENSe:]LEVel:MAXimum. The setting has effect for trigger source
IFPower only (see TRIG:SEQ:SOUR).
TRIGger[:SEQuence]:SLOPe <Slope> Slope
<Slope>
Parameter description Def. value Default unit FW vers.
POSitive |
NEGative
Rising slope
Falling slope
POS – V1.15
Command description
This command qualifies whether the trigger event occurs on the Rising Edge or on the Falling Edge
of the trigger signal. The setting has no influence on free run measurements (trigger source IMMe-
diate).
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