Main Feature Description 
DSO5000P Series Digital Storage Oscilloscope User Manual   9 
Chapter 4 Main Feature Description 
This  chapter  provides  some  general  information  that  you  need  to  learn  before  using  an 
oscilloscope. It contains: 
1. Oscilloscope setup 
2. Trigger 
3. Data acquisition 
4. Waveform scaling and positioning 
5. Waveform measurement   
4.1 Oscilloscope Setup 
While operating the oscilloscope, you may often use three features: Autoset, saving a setup and 
recalling a setup. Hereinafter they are introduced one by one.   
Autoset: This function can be used to adjust the horizontal and vertical scales of the oscilloscope 
automatically and set the trigger coupling, type, position, slope, level and mode, etc., to acquire a 
stable waveform display. 
Saving a Setup: By default, the oscilloscope will save the setup each time before being closed, 
and automatically recall the setup once being turned on. (Note: If you modify the setup, please 
wait  for  more  than  5  seconds  before  turning  off  the  oscilloscope  to  ensure  the  proper 
storage of new settings.) You can save 10 settings permanently in the oscilloscope and reset 
them as necessary. 
Recalling a Setup: The oscilloscope can recall any of your saved setups or the default factory 
setup.  
Default  Setup:  The  oscilloscope  is  preset  for  normal  operations  when  it  is  shipped  from  the 
factory. This is the default setup. You may recall this setup at any time for your requirements. To 
view the default settings, refer to Section 5.6.3.   
4.2 Trigger 
The trigger determines when the oscilloscope begins to acquire data and display a waveform. 
Once a trigger is properly set up, the oscilloscope can convert unstable displays or blank screens 
to meaningful waveforms. Here introduce some basic concepts about trigger. 
Trigger Source: The trigger can be generated with multiple sources. The most common one is the 
input channel (alternative between CH1 and CH2). Whether the input signal is displayed or not, it 
can trigger normal operations. Also the trigger source can be any signal connected to an external