GDS-2000E Series User Manual 
116 
Ground coupling mode. The display 
shows only the zero voltage level as a 
horizontal line.  
Observing the AC portion of the waveform using AC 
coupling 
Input Impedance 
 
The input impedance of the GDS-2000E is fixed at 
1MΩ. The impedance is displayed in the channel 
menu. 
1.  Press the Channel key. 
2.  The impedance is displayed in the 
bottom menu.  
Invert Waveform Vertically 
 
1.  Press the Channel key. 
2.  Press Invert to toggle Invert On or 
Off.