Spectrum Analyzer Measurement Guide : Spectrum Analyzer : Measure Menu : IQ Capture Triggering Menu
 
IQ Capture Triggering Menu
Key Sequence: Shift > Measure (4) key > IQ Waveform Capture > Triggering
SPA IQ Capture Triggering Menu
Source
Press this submenu key to set the desired type of triggering.
Free Run: The default trigger type is Free Run, in which the instrument begins another sweep as soon as one is finished.
External: A TTL signal applied to the External Trigger BNC input connector causes a single sweep to occur after the set delay. After the sweep is complete, the resultant trace is displayed until the next trigger signal arrives.
Slope
Sets the trigger slope to rising or falling.
Delay
Used when External is selected for the Source. Capture begins after set time delay, once the trigger has occurred. The delay can be entered either as a percentage of the sweep time or as an absolute time delay with units of ns, μs, or ms.
 
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