MSRA configuration
R&S
®
FSWP-B1
45
User Manual 1177.5862.02 ─ 09
IF Power ← Trigger Source ← Trigger Source
The R&S
FSWP starts capturing data as soon as the trigger level is exceeded around
the third intermediate frequency.
For frequency sweeps, the third IF represents the start frequency. The trigger threshold
depends on the defined trigger level, as well as on the RF attenuation and preamplifi-
cation. A reference level offset, if defined, is also considered. The trigger bandwidth at
the intermediate frequency depends on the RBW and sweep type. For details on avail-
able trigger levels and trigger bandwidths, see the instrument data sheet.
For measurements on a fixed frequency (e.g. zero span or I/Q measurements), the
third IF represents the center frequency.
This trigger source is only available for RF input.
The available trigger levels depend on the RF attenuation and preamplification. A refer-
ence level offset, if defined, is also considered.
For details on available trigger levels and trigger bandwidths, see the data sheet.
Remote command:
TRIG:SOUR IFP
, see
RF Power ← Trigger Source ← Trigger Source
Defines triggering of the measurement via signals which are outside the displayed
measurement range.
For this purpose, the instrument uses a level detector at the first intermediate fre-
quency.
The input signal must be in the frequency range between 500
MHz and 8
GHz.
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 can 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
I/Q Power ← Trigger Source ← Trigger Source
Triggers the measurement when the magnitude of the sampled I/Q data exceeds the
trigger threshold.
Remote command:
TRIG:SOUR IQP
, see
Trigger Level ← Trigger Source
Defines the trigger level for the specified trigger source.
For details on supported trigger levels, see the instrument data sheet.
Remote command:
TRIGger[:SEQuence]:LEVel[:EXTernal<port>]
Trigger settings