On Wed, Apr 17, 2019 at 01:05 AM, John Griessen wrote:
That is not normal, is it?
Oh yes, it is absolutely normal. The slope should be much steeper for measuring pulse widths or slopes: Consider the fact that with your setup a minimal difference in trigger voltage means a relatively large difference in time. As a result, you're mostly "measuring" trigger voltage. With a steep slope, the trigger voltage is not as critical.
The "jitter" that you're seeing in the slope is a result of the fact that even an extremely small variation in trigger voltage (nothing is perfect) causes a horizontal shift of the image. Adjust the trigger voltage very carefully and you'll see the trace (slope) shift horizontally. The jitter will be less with some settings.
Raymond
Raymond Domp Frank