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Triggers
R&S
®
RTM20xx
40
User Manual 1317.4726.02 ─ 01
"Auto"
The instrument triggers repeatedly after a time interval if the trigger
conditions are not fulfilled. If a real trigger occurs, it takes precedence.
This mode helps to see the waveform even before the trigger is set. The
waveform on the screen is not synchronized, and successive wave-
forms are not triggered at the same point of the waveform.
"Normal"
The instrument acquires a waveform only if a trigger occurs, that is, if
all trigger conditions are fulfilled. If no trigger occurs, no waveform is
acquired and the last acquired waveform is displayed. If no waveform
was captured before, nothing is displayed.
Remote command:
LEVEL
The rotary knob changes the trigger treshold voltage for all trigger types that require one
trigger level. Some trigger types require two trigger levels, for example, the rise time/fall
time trigger. These levels can be set in the trigger setup menu.
Turn clockwise to move the trigger level up. Press the knob to set the level to 50% of the
signal amplitude.
If a B-trigger is enabled, the knob can set the level for both the A- and B-trigger. To assign
the level to the A- or B-trigger, use "Trigger Level" in the "Trigger" menu.
Remote command:
SETUP
Opens the "Trigger" menu.
SOURCE
Opens the "Trigger Source" menu for the A-trigger. Press the key repeatedly until the
required source is selected. The key lights up in the color of the selected trigger channel.
The selected source is shown in the information bar.
SLOPE
If you have selected "Edge" trigger as trigger type with an analog trigger source, the
SLOPE key toggles the trigger slope. The current setting is shown by an icon in the
information bar.
If a B-trigger is enabled, the key can set the slope for both the A- and B-trigger. To assign
the slope to the A- or B-trigger, use "Trigger Level" in the "Trigger" menu.
3.3.2 Trigger Settings
Trigger settings consist of general settings in the "Trigger" menu and the trigger type-
specific setup. For B-trigger setup, a separate menu is provided.
Reference for Triggers