I have been doing some analog logging, and I saved a waveform that had a section at 79 mV. When I opened it up later, that part had changed to 379 mV. This has been driving us crazy for a couple of days because the difference is relevant to a question we’re trying to answer. Finally I took a photo of the screen with my phone when it was displaying correctly (We did take independent measurements), and then now I see the same saved capture is 300mV higher. Is there some calibration that’s not getting handled correctly for saved captures?
I also caught it doing the same thing on a .csv capture.
