Vrms = Vp*.707, right? My Picoscope software only offers Vpp, or AC rms. I have displayed right now a source of 22.18Vpp @ 105.5Hz. Dividing by 2 for Vp I get 11.09Vp. Multiplying by .707. I get 7.841 Vrms. My display says 7.683 Vrms. Why the difference? I am running 220.127.116.11.