""the measured rise/fall times between the cursors.
Hope that helps."
You can manually measure fall times and pulse widths with any scope with cursor. I am asking about automatic measurements. I see from the flyer that you can select Fall Time, Rise Time and Negative Pulse width. This reading would show on-screen. Now under that measurement menu, can you specify reference levels or pick-off points used to calculate those measurements?
On a Tektronix TDS-3032/3054, under the measurement menu is a Reference setting. By Default, the High reference is 90%, the Low Reference is 10% and both Mid References is 50%. Since I measure a negative going pulse that kind of, remotely, sorta, looks like an upside down bell curve, I set both mid reference points to 10%. Pulser width in that case is measured 10% instead of 50% down as is usually the case.
I attached an example pulse that I routinely measure. Td is the pulse width measurement in question. You can see that you measure it the 10% down points (which on a scope is usually 90%).
Even if not, still for $379.00, how can you go wrong for a trouble-shooting scope? You even get scope probes with it for that price. Jeesh, it's a no-brainer. If you can change the measurement reference points, I would adjust my test software to support it (assuming I can control it and get data from it through the USB port, which I am guessing I can since they sell a $150 USB/GPIB adaptor). I would just need the programmer's reference manual for it. I'm gonna learn real soon how to use VISA to open up a USB Port like I do a GPIB port instrument.
Dave