Keysight E6680A - Periodic

8 Trigger
8.1 Trigger
Additional controls are also present that are not dependent on the selected Trigger
Source.
Example
:TRIG:SOUR RFB
Swept SA measurement
:TRIG:<meas>:SOUR RFB
Measurements other than Swept SA
Annunciation RF Burst (in the Meas Bar)
8.1.1.10 Periodic
When Periodic is selected, the instrument uses a built-in periodic timer signal as the
trigger. Trigger occurrences are set by the Periodic Timer parameter, which is
modified by the Offset and Periodic Sync Src.
Use this trigger when there is a periodic signal but no reliable signal on which to
trigger. You can synchronize the periodic signal with outside events (using the
Periodic Sync Src) to get closer to a reliable trigger signal (see "More Information"
on page 993 below).
If you do not have a sync source selected (OFF), then the internal timer will not be
synchronized with any external timing events.
The Trigger tab contains the following Trigger Source dependent controls when
Periodic Trigger is selected:
–
"Period" on page 1009
–
"Offset" on page 1010
–
"Reset Offset Display" on page 1011
–
"Sync Source" on page 1012
–
"Trigger Delay" on page 1001
Additional controls are also present that are not dependent on the selected Trigger
Source.
Example
:TRIG:SOUR FRAM
Swept SA measurement
:TRIG:<meas>:SOUR FRAM
Measurements other than Swept SA
Annunciation Periodic (in the Meas Bar)
IQ Analyzer Mode User's &Programmer's Reference 992