Triggers
R&S
®
RTO6
236User Manual 1801.6687.02 ─ 05
6.10 External trigger input
Except for using analog or digital input channels as trigger source, you can also use
external signals as trigger source. The external signal is connected to the external trig-
ger input, which has a BNC connector. The only trigger type to trigger on external sig-
nals is the edge trigger
.
1. Connect the external trigger signal to the external trigger input.
2. Set up the trigger:
a) Select the "Trigger" > "Setup" tab.
b) Select the source: "Extern"
c) Adjust the trigger settings.
See Chapter 6.10.1, "External trigger setup", on page 236.
If the trigger source is a channel input, the trigger system uses the digitized signal. The
trigger system of the instrument is a separate system, thus the signal processing by
enhancement, decimation and arithmetic has no impact on the trigger signal. Most of
the R&S RTO6 trigger types use the digitized trigger signal.
If the trigger source is the external trigger input, the trigger comparator uses the analog
input signal. For the external trigger signal, only the edge trigger of the A-trigger is
available. Trigger sequence is not supported.
Qualification of the external trigger signal is not available.
6.10.1 External trigger setup
Access: "Menu" > "Trigger" > "Setup" tab > "Source = Extern"
External trigger signals, which are connected to the external trigger input, can be trig-
gered with an edge trigger. The "Find level" function is not available for external trigger
signals.
External trigger input
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