Products > Test Equipment
New Keysight 4 Channel Scope (1200 X-Series)
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0culus:
@Daniel, at some point in the future I have been planning to add a digital scope of some kind to my lab (Tek 2465B is my main scope, and I all in all prefer the UX of the older Tek scopes...no menus and softkeys to work with, but that's just like...my opinion, man), but I definitely recognize the utility of a modern digital scope for one shot triggering and such. And given that as a hobbyist I can't afford basically any of the stuff that's competitive with the old HP and Tek boat anchors I own, this scope looks intriguing.

Is there any possible way for a hobbyist to get a demo unit to try out before sinking $$?
Berni:
Nice to see but i'm still sticking to my good ol MSO6034A

You can compare features and memory size, but there is one thing that is not found on the spec sheet. Responsiveness

Historically Agilent scopes always had a lighting responsive UI where almost every button press would happen pretty much on the next 60Hz refresh cycle of the display, including moving the waveform around the screen. I hope they intend to still do this on the new scope.

I personally don't find deep memory that useful. Got a scope with 1Gpts of sample memory but never really use it. Most of the time i just set up the trigger to capture what i want rather than scrolling trough a really long waveform. If i want a big picture of whats going on i just zoom on a lower sample rate, the scopes never alias or do weird sampling things so the waveform still is pretty representative in proper intensity grading and all.

Okay 1Mpts can feel limiting in certain cases, but going above 10Mpts doesn't really give that much of a benefit.
2N3055:

--- Quote from: Berni on February 15, 2019, 07:00:19 am ---Nice to see but i'm still sticking to my good ol MSO6034A

You can compare features and memory size, but there is one thing that is not found on the spec sheet. Responsiveness

Historically Agilent scopes always had a lighting responsive UI where almost every button press would happen pretty much on the next 60Hz refresh cycle of the display, including moving the waveform around the screen. I hope they intend to still do this on the new scope.

I personally don't find deep memory that useful. Got a scope with 1Gpts of sample memory but never really use it. Most of the time i just set up the trigger to capture what i want rather than scrolling trough a really long waveform. If i want a big picture of whats going on i just zoom on a lower sample rate, the scopes never alias or do weird sampling things so the waveform still is pretty representative in proper intensity grading and all.

Okay 1Mpts can feel limiting in certain cases, but going above 10Mpts doesn't really give that much of a benefit.

--- End quote ---

We had this discussion before. It all depends what you do. If you are looking into something you exactly know how it looks you don't need lon mem. You just capture part you want to look at and that's it. After all that is what we did for all these years with analog scopes and delay triggering. Also not a problem if you are developing something from the scratch, and you can make something repetitive so you can keep on capturing it left and right until you see all of it. If you are reverse engineering, or looking at something at live system that you have to observe as it is, that it's a different story.

But I agree. 10 Mpoints is where things get useful. 1 Mpoint is problematic sometimes. Less is not really useful.
Berni:
For the sort of capture everything and sift trough it afterwards i found the directly USB streaming logic analyzers more useful than a scope.

You get effectively infinite memory due to a PC having tons of RAM and uses compression to squeeze it down even further. This lets you record a full minute of activity at full sample rate. And looking trough all that data tends to be more convenient on a PC (Provided the software has a well designed UI)

Tho if you want to reverse engineer something like MIPI running at 800Mbit then yeah a fancy scope with deep memory is useful (Tho my scope has a serial decoder for it)
2N3055:

--- Quote from: Berni on February 15, 2019, 07:50:57 am ---For the sort of capture everything and sift trough it afterwards i found the directly USB streaming logic analyzers more useful than a scope.

You get effectively infinite memory due to a PC having tons of RAM and uses compression to squeeze it down even further. This lets you record a full minute of activity at full sample rate. And looking trough all that data tends to be more convenient on a PC (Provided the software has a well designed UI)

Tho if you want to reverse engineer something like MIPI running at 800Mbit then yeah a fancy scope with deep memory is useful (Tho my scope has a serial decoder for it)

--- End quote ---
Absolutely agree. But it's not always decoding. Sometimes it is as simple as PWM on solar charger glitching in certain regime of work..
As I said before, I have Keysight 3000T because it is excellent interactive scope, and Picoscope with 512MS memory for longer captures and math. I also found Digital Discovery  to be surprisingly useful, despite UI that's not very friendly. It can be used as simple pattern generator, and together with logic analyzer and decoding it was very useful in finding problems in few projects I worked on.
USB streaming analyzers are best for long captures. No argue there. Which one do you use, if you don't mind me asking?
Regards,
SiniĊĦa
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