GUI Reference
R&S
®
ZNA
431
User Manual 1178.6462.02 ─ 12
The following buttons in the "Trigger" tab open related dialogs:
●
"Trigger Manager...":
●
"Trigger Out Manager...":
FreeRun / External / Manual / Multiple Triggers
These four buttons select the trigger source:
●
In "FreeRun" mode, a new measurement is started immediately without waiting for
a trigger event and without fixed time reference. The remaining trigger settings are
not valid.
"FreeRun" means that a measurement in "Continuous" sweep mode is repeated as
fast as possible.
●
In "External" trigger mode, the measurement is triggered by an external 5 V TTL
signal, applied to one of the following rear panel connectors:
–
BNC connectors Trigger In A to D
(requires trigger board R&S
ZNA-B91)
–
Pin 2 of the User Port connector
on page 433. For detailed specifications of the trigger signals, refer
The "External" trigger mode can be configured using the
settings.
●
In "Manual" trigger mode, the trigger signal is generated by the "Manual Trigger"
button.
●
If "Multiple Triggers" is active, the trigger sources for different triggered measure-
ment sequences, the trigger slope, and the trigger delay can be selected individu-
ally using the
.
Sweep Softtool