Rohde & Schwarz VSE-K149, User Manual

Page: 35 / 143

Configuration
R&S
®
VSE-K149
35 User Manual 1179.3315.02 ─ 01
Remote command:
TRIG:SOUR IFP
, see
TRIGger[:SEQuence]:SOURce
on page 122
I/Q Power ← Trigger Source ← Trigger Settings
Triggers the measurement when the magnitude of the sampled I/Q data exceeds the
trigger threshold.
Remote command:
TRIG:SOUR IQP
, see
TRIGger[:SEQuence]:SOURce
on page 122
RF Power ← Trigger Source ← Trigger Settings
Defines triggering of the measurement via signals which are outside the displayed
measurement range.
For this purpose, the software uses a level detector at the first intermediate frequency.
The resulting trigger level at the RF input depends on the RF attenuation and preampli-
fication. For details on available trigger levels, see the instrument's data sheet.
Note: If the input signal contains frequencies outside of this range (e.g. for fullspan
measurements), the measurement may be aborted. A message indicating the allowed
input frequencies is displayed in the status bar.
A "Trigger Offset" , "Trigger Polarity" and "Trigger Holdoff" (to improve the trigger stabil-
ity) can be defined for the RF trigger, but no "Hysteresis" .
Remote command:
TRIG:SOUR RFP
, see
TRIGger[:SEQuence]:SOURce
on page 122
Trigger Level ← Trigger Settings
Defines the trigger level for the specified trigger source.
For details on supported trigger levels, see the data sheet.
Remote command:
TRIGger[:SEQuence]:LEVel[:EXTernal<port>]
on page 120
Drop-Out Time ← Trigger Settings
Defines the time the input signal must stay below the trigger level before triggering
again.
Remote command:
TRIGger[:SEQuence]:DTIMe
on page 119
Trigger Offset ← Trigger Settings
Defines the time offset between the trigger event and the start of the measurement.
Offset > 0: Start of the measurement is delayed
Offset < 0: Measurement starts earlier (pretrigger)
(If supported by the connected instrument.)
Remote command:
TRIGger[:SEQuence]:HOLDoff[:TIME]
on page 119
Trigger Settings