User manual

Triggers
R&S
®
RTO
79User Manual 1316.0827.02 ─ 06
3.3.3 Noise Reject
The rejection of noise by settting a hysteresis avoids unwanted trigger events caused by
noise oscillation around the trigger level.
You can select the hysteresis mode and value for each channel separately, or couple the
trigger levels and set the same hysteresis for channels. The hysteresis of the external
trigger input is an independent value, and it is not affected by level coupling.
See also: "Robust trigger" on page 61
Hysteresis mode
Selects how the hysteresis is set.
"Auto"
This is the recommended mode. The hysteresis is set by the instrument
to reject the internal noise of the instrument.
"Manual"
The hysteresis is defined directly in absolute or relative values.
SCPI command:
TRIGger<m>:LEVel<n>:NOISe[:STATe] on page 482
Scale mode
Selects whether the hysteresis is defined in absolute or relative values. The setting is
available only in manual hysteresis mode.
SCPI command:
TRIGger<m>:LEVel<n>:NOISe:MODE on page 482
Reference for Triggers