BASIC OPERATION 
89 
Trigger 
The Trigger function sets the signal conditions upon which the 
spectrum analyzer triggers captured waveforms, including 
frequency, amplitude, and delay. An external trigger signal, instead 
of the default internal signal, may be used as required for special 
conditions.  
 
The sections below can be used to skip to the relevant section: 
 
  Free Run Mode → from page 89 
  Activate Video Trigger → from page 89 
  Activate External Trigger → from page 91 
  Selecting Trigger Mode → from page 92 
  Set the Trigger Delay Time → page 93 
Selecting a Trigger Type 
Free Run Mode 
 
In free run mode all signals are captured and 
the trigger conditions are not used.   
> Free Run[F1] to run in free mode.  
Activate Video Trigger 
 
Sets the video trigger level for video signals. 
When the video signal voltage level exceeds* 
the video trigger level, a trigger signal will be 
generated.   
*for positive video edge