Gate Trigger Style (Gate Trigger)

Menu Path: Input > Gate Trigger

The first parameter to select when setting up your gate trigger is the trigger Style. This determines the source of your trigger event (e.g. external trigger, magnitude before or after IF conversion, frequency-domain, etc.).

The types of trigger styles are described in the following list. For more details, click the name of the trigger type:

• Free Run: The VSA will process time records (input data) as quickly as possible with no waiting for a trigger signal (some instruments call this continuous triggering).
• Channel: Not supported as gate trigger.
• IF Mag: Selects the IF signal (or in band signal after digitizing and filtering) as the trigger signal.
• External or External 2: The hardware begins a measurement when the external-trigger signal meets the trigger conditions specified.
• External TTL: Selects external TTL triggering.
• Periodic: Not currently supported with gating.
• Frequency Mask: Not supported as gate trigger.
• RF Radio Frequency: A generic term for radio-based technologies, operating between the Low Frequency range (30k Hz) and the Extra High Frequency range (300 GHz). Burst: Selects the RF signal as the trigger signal before the IF and as close as possible to the RF input. RF Burst trigger circuitry bandwidths may vary with different hardware models and the bandwidth may not be as wide as the full frequency range of the instrument but it will be wider than the IF bandwidth.
• PXI Trigger: Selects the PXI backplane trigger lines as the trigger source. The specific PXI backplane trigger line to use is selected with the PXI Source parameter.

See Also

Gate Trigger Tab

About Gate Triggering