Products > Test Equipment
Are 'premium' scope brands still justified?
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tautech:

--- Quote from: AndyC_772 on April 13, 2024, 09:02:53 pm ---It's that quality that I'm most keen to hear about from people who have used these modern scopes extensively. I'm not asking what features I might need; I'm asking whether a £2500 scope, that on paper has a better spec than a £10k+ model from a 'traditional' (some might say 'A grade', or perhaps 'legacy' or 'incumbent') brand, is actually a good option for a working professional.

--- End quote ---
There are differences that depend on your workflow, certainly there are.

Here you can only go on advice from others that have the same scope as you do.
All I can add is in the class of scope you have, have provided excellent reliability in those we have sold.

But you'll have a new UI to learn and that's good, bad or otherwise depending on your experience.
IMO SDS2000X HD or better should be your target to look deeply at, just as 2N3055 has said.
2N3055:

--- Quote from: AndyC_772 on April 13, 2024, 09:02:53 pm ---It's that quality that I'm most keen to hear about from people who have used these modern scopes extensively. I'm not asking what features I might need; I'm asking whether a £2500 scope, that on paper has a better spec than a £10k+ model from a 'traditional' (some might say 'A grade', or perhaps 'legacy' or 'incumbent') brand, is actually a good option for a working professional.

--- End quote ---

SDS2354xHD vs. Keysight

- mechanically as good quality
- input noise is superior, as is resolution
- industry leading input offset ranges
- 10" touch screen
- good measurements and stats, histograms, measurement gates

To cut it short, specifications are true.

Only thing that Keysight 3000A has advantage is very fast rettriger, and some of the decoding details (it is a bit more elaborate).
For analog, low level signals SDS2000xHD is superior.

I use Siglents for same purpose as your case. I also make for living using scopes. They work just fine.
KungFuJosh:

--- Quote from: AndyC_772 on April 13, 2024, 09:02:53 pm ---I don't think I've ever - and I mean *ever*, in 10+ years of daily professional use - come across a bug in my MSO-X3104A. Whatever and wherever they may be, they're minor and obscure enough not to be an issue at all. That's a phenomenal achievement.

--- End quote ---

You can review their bug fix lists for each firmware release in their log: https://www.keysight.com/us/en/assets/9924-01108/release-notes/Keysight-2000A-3000A-X-Series-Oscilloscope-Release-Notes-02-66.pdf?success=true

Some of those bugs would be critical for some users. But they fixed them, as expected of any quality brand. A slightly more critical hardware bug: https://www.eevblog.com/forum/testgear/msox3104a-fails-to-boot/
tszaboo:
I have the MSOX 3104T at work, Siglent SDS824HD at home. The Siglent is surprisingly good, and it can do things that the MSOX cannot. For example the 12 bit and zoom makes it almost work like a low speed power rail probe, that would be 5x the price of the scope just for the probe. I used Siglents before they between Ok to Meh. These HD models are good. And the entry price is very low.
But the reverse is also true. The MSOX is a workhorse, and I think every serious engineering company deserves to have one.
mikeselectricstuff:
I've always used hp(54622d), Agilent (mso6034a) and Keysight (msox3104t)
Any replacement would absolutely have to have the same instant UI responsiveness. I've not tried any of the more recent Siglent etc. beyond occasional fiddles at trade shows, but a slower UI would be a dealbreaker as that impacts everything.
 The R&S RTB was a big disappointment in this respect, the RTM even more so as it is no better despite being a much higher end scope. I have the MSOX and RTM on the bench, but the RTM only gets used if I need the big screen or a second independent trigger.
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