Assertion: oscilloscope's screen | /r/CapableOf | remove the need
Facets:
value: for ground coupling
type: PURPOSE
Source sentences:
text: I know that it can be useful on analog oscilloscopes to adjust the ground exactly to a graticule line, but from what I've seen, most of the digital scopes have a sort of marker which shows exactly where the ground is on the screen, which removes the need for ground coupling.