User`s guide
158   
Using the Oscilloscope
The Scope Channel Menu
Probe field
You use the Probe field to set the probe attenuation factor for the input 
channel currently displayed in the Input field.
Probe attenuation factor
The probe attenuation factor can be set from 1:1 to 1000:1 in 
increments of one. When you select a probe attenuation factor, the 
actual sensitivity at the input does not change. The voltage values 
shown on the display (V/div, offset, trigger level) are automatically 
adjusted to reflect the attenuation factor. The marker and automatic 
measurement voltage values change when a Run is initiated and the 
next acquisition is displayed.
Coupling field
You use the Coupling field to set the input impedance for the channel 
currently displayed in the Input field.
Coupling field selections
When you select the Coupling field, a pop-up appears that shows the 
input impedance values available. The selectable values are 1MW / DC, 
1MW / AC, and 50W / DC. 
CAUTION: The maximum input voltage for the 50Ω / DC Coupling field selection is 5 
Vrms.










