Chapter 5 To Trigger the Oscilloscope    RIGOL 
MSO7000/DS7000 User Guide  5-7 
In the trigger control area (Trigger) on the front panel, press Menu → Holdoff (for 
some trigger, Holdoff is a sub menu under More, at this time, press Menu → More 
→ Holdoff) and then rotate the multifunction knob    at a small step to modify the 
holdoff time (the holdoff to this time when the waveforms are stably triggered; by 
default, the holdoff time is 8 ns). Also, you can use the numeric keypad to set the 
holdoff time. The adjustable range of holdoff time is from 8 ns to 10 s.   
 
 
Noise Rejection 
 
Noise rejection can reject the high frequency noise in the signal and reduce the 
possibility of miss-trigger of the oscilloscope. 
 
In the trigger control area (Trigger) on the front panel, press  Menu to enter the 
trigger  setting  menu,  then  press  Noise  Reject  continuously  (for  some  trigger, 
Noise Reject is a sub menu under More, at this time, press Menu → More → 
Noise Reject) to enable or disable noise rejection. 
 
Note: This function is only available when the trigger source is an analog channel.