
Common Measurement Settings
R&S
®
FSMR3000
145
User Manual 1179.0116.02 ─ 02
For details, see the "Instrument Tour" chapter in the R&S
FSMR3 Getting Started man-
ual.
"External Trigger 1"
Trigger signal from the "Trigger Input / Output" connector.
(front panel)
"External Trigger 2"
Trigger signal from the "Sync Trigger Input / Output" connector.
(rear panel)
Remote command:
TRIG:SOUR EXT
,
TRIG:SOUR EXT2
See
Video ← Trigger Source
Defines triggering by the video signal, i.e. the filtered and detected version of the input
signal (the envelope of the IF signal), as displayed on the screen.
Define a trigger level from 0 % to 100 % of the diagram height. The absolute trigger
level is indicated by a horizontal trigger line in the diagram, which you can also move
graphically to change the trigger level.
A fixed hysteresis of
±
5
% of the specified trigger value (in V) is applied to the video
trigger level automatically and cannot be changed.
Video mode is only available in the time domain, and not for I/Q-based data.
Remote command:
TRIG:SOUR VID
, see
I/Q Power ← Trigger Source
This trigger source is only available in the I/Q Analyzer application and in applications
that process I/Q data.
Triggers the measurement when the magnitude of the sampled I/Q data exceeds the
trigger threshold.
Remote command:
TRIG:SOUR IQP
, see
Power Sensor ← Trigger Source
Uses an external power sensor as a trigger source. This option is only available if a
power sensor is connected and configured.
Connect the external power sensor to the "Smart Noise Source" connector on the front
panel of the R&S
FSMR3 when using the power sensor as a trigger source.
Note:
For Rohde
&
Schwarz power sensors, the "Gate Mode"
Lvl
is not supported. The
signal sent by these sensors merely reflects the instant the level is first exceeded,
rather than a time period. However, only time periods can be used for gating in level
mode. Thus, the trigger impulse from the sensors is not long enough for a fully gated
measurement; the measurement cannot be completed.
Remote command:
TRIG:SOUR PSE
, see
Trigger Settings