Hope this question isn't too basic, but I was wondering what setting is used to "zero" or rel out a reading you get on a scope. I'm picking up some low level noise prior to taking a measurement that I'd like the scope to ignore and just start at the 0V mark. I have a DC amp clamp, as well, which has no zeroing button on it that I was hoping I could do on the scope end of things in the same fashion, too.
I see a feature called filtering which appears to do what I'm talking about, but I'm not quite sure that is the appropriate setting to use in my situation.
Many thanks for any help...