Controls,  Connectors,  and  Indicators
Figure 2-5.  Trigger controls  and  indicators.
(34)  HOLDOFF  Control—Varies  holdoff  time  between  the  end  of  one  A 
sweep  and the  start  of the  next A sweep.
The  HOLDOFF  control  can  increase  the  minimum  holdoff time  by  at 
least  10 times.  Adjusting this control can improve triggering stability of 
aperiodic  signals  (i.e.,  complex digital waveforms).
(3 ? ) 
LEVEL  Control—Sets  the  amplitude  level  on  the  trigger  signal  at 
which either the A or B sweep is  triggered.
Adjusting  the  LEVEL  control  to  either  end  of  its  range,  in  the  AUTO 
LEVEL  trigger  mode,  resets  the  limits  of  the  Trigger  LEVEL control 
range to the  peak-to-peak amplitude  of the trigger source signal.
2-12
2245A  Operators