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Agilent 600MHz 54831B hack for 1GHz 54832B possible? YES!

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Howardlong:

--- Quote from: Jwalling on August 18, 2016, 04:15:13 pm ---
--- Quote from: Howardlong on August 18, 2016, 03:58:29 pm ---Awesome!!! I have a 54831D, in equivalent time bizarrely it has a bandwidth in excess of 1GHz, but it's ITRO 800MHz in real time. I'll give this modification a go.

Furthermore, what is the fastest timebase since the mod? The kosher 1GHz editions go down to 200ps/div.

--- End quote ---

Good question - I hadn't even thought to check before/after.  :palm: This one goes down to 200ps/div. Does the 831B/D only go to 500ps/div.?

EDIT: When you have your scope open, can you tell me what the ACQ memory chips are? Thanks.
Jay

--- End quote ---

It might be a day or two before I get time, I have the wife's family staying with us at the moment.

Jwalling:

--- Quote from: Howardlong on August 18, 2016, 04:58:38 pm ---It might be a day or two before I get time, I have the wife's family staying with us at the moment.

--- End quote ---

Hey now, what's more important!? >:D
We could have a bandwidth contest. Pick the channel with the best performance, and in 1MHz increments (no sense in splitting hairs finer than that), post your results here.  :popcorn:

EDIT: screwed up quoting. Doh.
Jay

Howardlong:
Family can wait ;-)

Needless to say, scope is now a 54832D, rise time is about 320ps on real time sin(x)/x, and a smidge under 300ps on equivalent time.

Bandwidth is 1230MHz on real time, 1310MHz equivalent time.

Jwalling:

--- Quote from: Howardlong on August 18, 2016, 07:21:19 pm ---Family can wait ;-)

Needless to say, scope is now a 54832D, rise time is about 320ps on real time sin(x)/x, and a smidge under 300ps on equivalent time.

Bandwidth is 1230MHz on real time, 1310MHz equivalent time.

--- End quote ---

Nice.  :-+

It looks like we both just posted at about the same time. What are the odds?
So, your board has 128MB of ram. What is the memory option (if any) on yours?

Edit: And did the 831B/D only go to 500ps/div. before the mod?

Jay

Jwalling:

--- Quote from: Jwalling on August 18, 2016, 07:30:10 pm ---
--- Quote from: Howardlong on August 18, 2016, 07:21:19 pm ---Family can wait ;-)

Needless to say, scope is now a 54832D, rise time is about 320ps on real time sin(x)/x, and a smidge under 300ps on equivalent time.

Bandwidth is 1230MHz on real time, 1310MHz equivalent time.

--- End quote ---

Nice.  :-+

It looks like we both just posted at about the same time. What are the odds?
So, your board has 128MB of ram. What is the memory option (if any) on yours?

Edit: And did the 831B/D only go to 500ps/div. before the mod?

Jay

--- End quote ---

Never mind on the timebase question, just looked it up in the manual. 500ps/div.
Note to self, stop being lazy...
Jay

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