?

Hi Dave,

Thanks for forcing me to look further in the manual. You are right, the procedure is shown at pages 6-25/25 and it works. Never too old to learn something!
Still I don't understand page 5-1: "If two waveforms are selected at the time of an AQR or AQS command, only one will be stored and available for subsequent measurements."

Albert

> The 7854 can capture two waveforms at once. It stores them in two
> different waveform memory locations, and I believe doesn't display
> both of them unless told to.
> This is also how the 7854 acquires and displays stored XY. You have to
> acquire the X and Y inputs simultaneously as YT, and then display
> those two channels in XY mode.
> Naturally, for purely analog use the 7854 does it the same way as
> every other 7k scope.
>
> Dave Casey
>
>
> Quoting Albert :
>
> > At page 6 top-right there is something I don't understand: " ... and
> > since two waveforms can be digitized simultaneously, memory 1 was
> > also set aside." According to the Op manual and to my experience
> > only one waveform can stored (in memory 0) during an AQR. The 'scope
> > is allowed to be in, say, vertical ALT mode, but only one of the two
> > real time waveforms will be digitized then. The Op manual gives the
> > rules for which one.
> > Could this be a later improvement?
> > BTW Memory 1 is used and zeroed afterwards when AVG is executed.
> >
> > Albert
> >
> >>
> >> A few days ago, while searching in my paper files, I found an
> >> article reprint from Electronics magazine about the 7854 scope. The
> >> title is "On-board digital processing refines scope measurements".
> >>
> >> If anyone is interested in reading or adding the article to her/his
> >> website, it can be downloaded from here (about 12 MB):
> >>
> >>
> >>
> >> Regards,
> >>
> >> Carlos
> >>
> >
> >
> >
>