User manual
Triggers
R&S
®
RTO
57User Manual 1316.0827.02 ─ 06
8. Additionally, you can define a reset condition: "Enable reset by timeout" and/or
"Enable reset event". The sequence restarts with the A-event if no B-event occurs
and the reset condition is fulfilled.
a) If "Enable reset by timeout" is selected, enter the time in "Reset timeout".
b) If "Enable reset event" is selected, tap the "R Event Setup" button and set up the
reset event.
The trigger types and settings are restricted dependent on the A and B event
settings. The instrument provides only possible, reasonable combinations.
3.2.5 Qualifying the Trigger
Qualification considers the states of digital signals on other input channels and their log-
ical combination as an additional trigger event condition. For example, an edge trigger is
configured for channel 1, and the instrument triggers only if the signal on channel 2 is
high.
If the trigger source is "Extern", qualification is not available.
For details on qualification settings, see chapter 3.3.2, "Trigger Qualifica-
tion", on page 77.
1.
Press the TRIGGER key and select the Trigger Qualification tab.
Alternatively, tap the "Trigger" menu and then "Trigger Qualification.".
2. At the left hand-side, select the vertical tab of the event you want to qualify: "A Trig-
ger", or "B Trigger". For the R-event, qualification is not available.
3. Select the channel(s) with the digital input signal to be used as qualifying signal(s).
Channels used as trigger source for the current event cannot be used for qualification
and appear dimmed.
4. Check and set the trigger levels for all used channels, that is, the thresholds for digi-
tization of analog signals.
You can set all levels to the currently selected value if you select "Couple levels".
5. Set the boolean operation for each channel.
6. If more than one channel is selected, set the logical combination of the channel states.
7. Tap "Qualify" to enable the qualification.
3.3 Reference for Triggers
The setup of a trigger contains mandatory and optional settings. The usage of optional
settings depends on the signal characteristics and the test setup.
Mandatory settings are:
● Trigger source: "Source" on page 59
● Trigger type and its setup: "Type" on page 59
Reference for Triggers