@Teneyes: That's interesting, thanks very much. Is the "triggering bug" a manifestation of the "trigger jitter" problem that has been discussed here? I notice your horizontal trigger offset is quite near 500 microseconds... is this fixable by upgrading to later firmware than what you are running?
The AC trigger bug, That I reported in July 2013, and Highlighted by Dave Jones was fixed by the latest FW for both the DS2000 & DS1000Z. The 'AC Jitter bug' caused such bad jitter that this bug could not be observed until the Jitter bug was Fixed.
For my testing and analysis on the DS2000 see:
Here: And my conclusion/conjecture
Here: Below I retested this bug with Bandwidth set to 100MHZ and 1 GSa/s and the bug does occur,
So I think it may also occur on the DS1000Z(single chan).
It would be interesting to see if it does??
After reading my blog on the bug remember the vertical position must be adjusted to instigate the bug.
Note: The input must have a fast risetime edge.
The math on the Pass Fail counts is also verry interesting... a programmer's "variable type" fail. Maybe that should be noted in the "wish list" thread for submission to Rigol for future firmware updates?
I have not the patience to wait for some billions of waveforms in testing, though, but someday I may need to, so I think this should be made right, whether or not I might use it myself. Just as the "measurements" units should agree with what the math trace units are....
For the pass/fail rollover error, No Patience neccessary,
Just set the DS1000Z to fastest Update Scan rate (50ns/div)
Then check back in 21 hrs
30,000 x 60 x 60 X 21 hrs = 2,268,000,000