Basic Operation 
DSO5000P Series Digital Storage Oscilloscope User Manual   16 
: Pulse Width trigger, positive polarity. 
: Pulse Width trigger, negative polarity. 
13. Pop-up Prompt                     
14. Readout tells trigger level. 
15. Icon indicates whether the waveform is inverted or not.                 
16. 20M Bandwidth Limit. If this icon lights up, it means the bandwidth limit is enabled, otherwise 
disabled. 
17. Icon indicates channel coupling.                         
18. Channel Marker 
19. Window displays waveform.   
5.1.1 XY Format 
The XY format is used  to analyze phase  differences, such  as those  represented by Lissajous 
patterns. The format  plots the  voltage on  CH1 against the voltage on CH2, where  CH1 is the 
horizontal  axis  and  CH2  is  the  vertical  axis.  The  oscilloscope  uses  the  untriggered  Normal 
acquisition mode and displays data as dots. The sampling rate is fixed at 1 MS/s. 
The oscilloscope can acquire waveforms in YT format at any sampling rate. You may view the 
same  waveform  in  XY format.  To  perform  this operation,  stop  the  acquisition  and  change  the 
display format to XY. 
The table below shows how to operate some controls in XY format. 
Usable or not in XY format 
CH1  VOLTS/DIV  and  VERTICAL 
POSITION controls 
Set the horizontal scale and position   
CH2  VOLTS/DIV  and  VERTICAL 
POSITION controls 
Continuously set the vertical scale and position 
Autoset (display format reset to YT) 
5.2 Horizontal Controls 
Use  the  horizontal  controls  to  change  the  horizontal  scale  and  position  of  waveforms.  The 
horizontal position  readout  shows the time  represented by the center of the screen, using the 
trigger time as zero. When you change the horizontal scale, the waveform will expand or contract 
to the screen center. The readout near the upper right of the screen shows the current horizontal 
position in second. M represents ‘Main Time Base’, and W indicates ‘Window Time Base’. The