R&S ZNC3, Руководство пользователя

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GUI Reference
R&S
®
ZNC
284 User Manual 1173.9557.02 ─ 13
Free Run / External / Manual / Multiple Triggers
The four buttons select the source of the trigger event:
●
In "Free Run" 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.
"Free Run" 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 either to the BNC connector EXT TRIG IN or to pin 2 of the USER PORT
connector at the rear panel. The two trigger inputs are equivalent; no additional setting
for signal routing is required. For detailed specifications of the trigger signals refer to
​
chapter 9.1.1.1, "USER PORT" , on page 737.
The "External" trigger mode can be configured using the "Sequence" and "Slope /
Level" settings.
Note: The period of the external trigger signal should be adjusted to the triggered
measurement sequence. If the analyzer receives a trigger event while the last
sequence is still running, the R&S ZNC skips the trigger event and generates a mes-
sage.
●
In "Manual" trigger mode the trigger signal is generated on selecting the "Manual
Trigger" softkey.
●
In "Multiple Trigger" mode the trigger sources for different triggered measurement
sequences, the trigger slope, and the trigger delay can be selected individually using
the "Trigger Manager" dialog. In particular, it is possible to use two different external
trigger sources.
See also
​
chapter 4.4.5.2, "Trigger Manager (Dialog)" , on page 286.
Remote command:
​
TRIGger<Ch>[:
​
SEQuence]:
​
SOURce
​
on page 679
Sequence
Selects the measurement cycle or sequence of actions to be triggered.
Channel Settings