Tektronix RSA6100A Series, Help Manual

Page: 343 / 415

Controlling the Acquisition of Data > Using Triggers to
Capture Just What You Want > Triggering Time Quali fi ed Tab
Time Quali fi ed Tab
The Time Quali fi ed tab allows you to specify whether triggers are accepted based on timing characteristics.
Trigger events that pass the timing quali fi cation result in an acquisition. Trigger events that do not pass
the timing quali fi cation are ignored. Time-quali fi cation can be applied to Power, Frequency Mask, Runt
and External triggers.
Setting Description
None No timing quali fi cation is applied to trigger events. Acquisitions occur whenever a trigger
event occurs (as speci fi ed on the Event tab).
Shorter If the length of the trigger event is shorter than the time speci fi ed by the Time 1 setting,
then the trigger event is accepted and an acquisition is completed.
Longer If the length of the trigger event is longer than speci fi ed by the Time 1 setting, then the
trigger event is accepted and an acquisition is completed.
Inside If the length of the trigger event is longer than the time speci fi ed by the Time 1 setting and
shorter than the time speci fi ed by the Time 2 setting, then the trigger event is accepted
and an acquisition is completed.
Outside If the length of the trigger event is shorter than the time speci fi ed by the Time 1 setting or
longer than the time speci fi ed by the Time 2 setting, then the trigger event is accepted
and an acquisition is completed.
Time 1 Enter the Time 1 reference value here. Range: 20 ns–28 s.
Time 2 Enter the Time 2 reference value here. Range: 20 ns–28 s.
xxx
The following table shows how the appearance of the Time Quali fi ed tab changes depending on whether
time quali fi ed triggering is enabled or not enabled.
Tab appearance Description
When None is selected on the Time Quali fi ed tab, the watch icon is dimmed.
When any selection other than None is selected on the Time Quali fi ed tab, the watch
icon appears in color.
xxx
Minimum off time between trigger events. This readout shows how long the trigger conditions must be
absent between the end of one trigger event and the start of the next trigger event to be ensure that the end
of the
fi rst event is recognized. For example, if Freq Mask is selected and its RBW causes a minimum
off time of 500 µs, and your signal violates the mask for 600 µs of every 1 ms, (so that the OFF time is
RSA6100A Series Real-Time Spectrum Analyzers Help
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