Configuring the Internal Baseband Source
R&S
®
SMBV100B
97User Manual 1178.4460.02 ─ 03
Trigger event
A trigger event is caused by the received trigger signal. Another possibility to provoke a
trigger event is to execute trigger manually. The "Arm" function stops the signal gener-
ation until subsequent trigger event occurs.
● Trigger Sources.......................................................................................................97
● Impact of the Trigger Modes on the Signal Generation.......................................... 97
● Impact of the Additional Trigger Settings.............................................................. 100
● Receiving and Providing Trigger Signals.............................................................. 103
Trigger Sources
The provided trigger sources are divided into two main groups, internally generated or
externally supplied trigger signals.
●
Internal ("Internal")
Internal trigger signals are generated by the instrument itself.
●
External ("External Global Trigger")
External trigger signal is generated by an external trigger source.
The instrument expects the trigger signal at one of the User x connectors. Refer to
Configuring the Global Connectors for information on how to configure the required
settings.
●
External ("Baseband Sync In")
In master-slave mode, slave instruments are triggered by the active edge of the
synchronization signal.
This trigger source is selected automatically and cannot be changed.
See Chapter 8.3.1, "Connecting Multiple Instruments in Master-Slave Mode",
on page 428.
The trigger mode setting, the selection of the trigger source and the setting of a delay
and trigger suppression in the case of external triggering are carried out independently.
However, the polarity and impedance characteristics of the external signals are identi-
cal for all basebands using this signal.
A signal which marks the trigger event can be output at the User x connectors.
Related settings:
●
Chapter 3.4.2.1, "Trigger Settings", on page 110
●
Chapter 10.2.5, "Global Connectors Settings", on page 520
●
Trigger settings in the dialogs of the firmware options
Impact of the Trigger Modes on the Signal Generation
A trigger event affects the signal generation in different way, depending on the selected
trigger mode. The Table 3-3 gives an overview of the provided trigger modes and their
impact.
Common Functions and Settings in the Baseband Domain
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