Basic Operation 
DSO5000P Series Digital Storage Oscilloscope User Manual   20 
DC passes both DC and AC components of the input signal. 
AC  blocks  the  DC  component  of  the  input  signal  and 
attenuates signals below 10Hz. 
Ground disconnects the input signal. 
Limits  the  bandwidth  to  reduce  display  noise;  filters  the 
signal  to  eliminate  noise  and  other  unnecessary  HF 
components. 
Selects the resolution of the VOLTS/DIV knob. 
Coarse  defines  a  1-2-5  sequence.  Fine  changes  the 
resolution to small steps between the Coarse settings. 
Selects a value according to the probe attenuation factor so 
as to ensure correct vertical readouts. Reduce bandwidth to 
6MHz when using a 1X probe. 
Inverts the waveform relative to the reference level. 
Ground Coupling 
Used to display a zero-volt waveform. Internally, the channel input is connected with a zero-volt 
reference level. 
Fine Resolution 
In the fine resolution setting, the vertical scale readout displays the actual VOLTS/DIV setting. The 
vertical scale changes only after you adjust the VOLTS/DIV control and set to coarse. 
Remove Waveform Display 
To remove a waveform from the screen, first push the menu button to display the vertical menu, 
then  push  again  to  remove  the  waveform.  A  channel  waveform  which  is  unnecessary  to  be 
displayed can be used as a trigger source or for math operations. 
3.  VOLTS/DIV Knob 
Control the oscilloscope to magnify or attenuate the source signal of the channel waveform. The 
vertical size of the display on the screen will change (increase or decrease) to the ground level. 
Also you may use this knob to switch between coarse and fine. 
4.  MATH MENU: Display the waveform math operations. See the table below for details. 
The MATH menu contains source options for all math operations. 
Add Channel 1 to Channel 2.   
Subtract  the  Channel  2  waveform  from  the  Channel  1 
waveform. 
Subtract  the  Channel  1  waveform  from  the  Channel  2 
waveform. 
Channel 1 multiply channel 2 
Channel 1 divide channel 2 
Channel 2 divide channel 1 
Three  types  of  window  available  for  selection:  Hanning, 
Flattop, Rectangular.   
Zoom: Use the FFT Zoom button to adjust the window size. 
Scale: x1, x2, x5, x10. 
Note: All selected menus are highlighted in orange.