power turns on
-volt/div 0.5 both it is the scale of the display. 0.5 volt/div means one square represent 0.5 volt
-position in the middle: it puts the display in the middle
-mode dual it means showing both channel 1 and channel 2’s status
-horizontal 0.5 adjust wavelengths narrowness i think ‘time’ knob do the same thing
-VAR switch to DC what it does? good question
-focus and intensity on the middle focus adjust thickness of the lines, focus makes lines look sharper.
X and Y axis:
x is very much the time /div, meaning each div represents a certain time length. And Y is Volt/div meaning each div represent an amount of volt.
percentage of minimum and maximum input :0 and 100%? if no resistance is encountered.
Tiankai Li 