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

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

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 <aodiversen@...>:

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

?

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
> >>
> >
> >
> >
>

was someone able to get that file from filecloud ?

It wants a answer, but does not ask a question ???

Herbert

?

Hi Herbert,
Click "request download ticket" at the bottom of the first page. Then type the CAPTCHA field and "continu". And so on. No login required, but this "free" service will certainly try to remember as much as possible from your visit.
There was no question, but I had a question after reading the document.
Albert

> was someone able to get that file from filecloud ?
>
> It wants a answer, but does not ask a question ???
>
> Herbert

Hi Albert,

so far, so good. But it does not show the CA?ZCHA fieled but only
the "continoe" button ;-(((

Using FIREFOX ?!

Herbert

Hi Herbert,
Click "request download ticket" at the bottom of the first page. Then
type the CAPTCHA field and "continu". And so on. No login required,
but this "free" service will certainly try to remember as much as
possible from your visit.
There was no question, but I had a question after reading the document.
Albert

was someone able to get that file from filecloud ?

It wants a answer, but does not ask a question ???

Herbert