LAUNCH                    X-431 PAD III User Manual 
108 
BW Limit 
ON: Limits the channel bandwidth to 20MHz to reduce 
display noise. 
OFF: Get full bandwidth. 
Invert 
ON: Turn on the invert function. 
OFF: Restore to the original display of the waveform. 
 
Trigger setting 
Trigger  indicates  that  when  certain  waveform  meets  the  conditions  that  are 
predefined according to the requirements, the Scopebox acquires the waveform 
and its adjacent section, and then presents it on the screen. 
   
Fig. 12-10 
1) If Edge trigger is selected (An edge trigger determines whether the Scopebox 
finds the trigger point on the rising or the falling edge of a signal.): 
Menu  Comments/Settings 
Sweep 
The sweep mode determines how the Scopebox behaves 
in the absence of a trigger event. The Scopebox provides 
three trigger modes: Auto, Normal, and Single. 
Auto: It allows the Scopebox to acquire waveforms even 
when  it  does  not  detect  a trigger condition.  If  no  trigger 
condition  occurs  while  the  Scopebox  is  waiting  for  a 
specific period, it will force itself to trigger. 
When  forcing  invalid  triggers,  the  Scopebox  can  not 
synchronize the waveform, and then waveform seems to 
roll across the display. If valid triggers occur, the display 
becomes stable on the screen.