User manual

Waveform Setup
R&S
®
Scope Rider RTH
47User Manual 1326.1578.02 ─ 04
2.5 Trigger
Triggering means to capture the interesting part of the relevant waveforms. Choosing
the right trigger type and configuring all trigger settings correctly allows you to detect
various incidents in signals.
A trigger occurs if the trigger conditions are fulfilled. The instrument acquires continu-
ously and keeps the sample points to fill the pretrigger part of the waveform record.
When the trigger occurs, the instrument continues acquisition until the posttrigger part
of the waveform record is filled. Then it stops acquiring and displays the waveform.
When a trigger is recognized, the the instrument does not accept another trigger until
the acquisition is complete.
Trigger conditions include:
●
Source of the trigger signal (channel)
●
Trigger type and its setup, including the trigger level(s)
●
Trigger mode
In addition, the horizontal position of the trigger point and the reference point are
important to display the interesting part of the signal, see Chapter 2.3, "Horizontal
Setup", on page 43.
Information on the most important trigger settings is shown in the upper information
bar.
Figure 2-1: Trigger information: width trigger on channel 2, single trigger mode
► To adjust all trigger settings, press the SETUP key.
► To adjust the trigger level, do one of the following:
● Drag the trigger level marker on the right side of the display to the required
position.
● Press the LEVEL key and turn the wheel.
If the trigger type has two trigger levels, press the LEVEL key again to toggle
the upper and lower levels, or press the wheel.
● Press the SETUP key, select "Trigger Level", and enter the level value.
► To start and stop acquisition, press the RUN STOP key.
2.5.1 General Trigger Settings
General trigger settings are the settings that are independent of the trigger type. The
settings specific for a trigger type are described in the following sections.
Trigger