Products > Test Equipment

Siglent SDS2000X Plus vs SDS2000X HD

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hpw:

--- Quote from: tautech on March 31, 2024, 02:02:05 am ---SDS2000X Plus (8bit & 10bit mode) should remain as it is a good performer for the $.

--- End quote ---

And the SDS2000X Plus tuning is simple as it gets.

The 10 bits helps a lot but BW is limited about 100Mhz.

Just compare the ENOB of the new HD series :palm: so the question rises about the real noise floor gain compared to the SDS2000X Plus against the new HD models is IMHO limited and ROI in question.

In addition a upcoming FW for the SDS2000X Plus is also delayed or in question :palm:. As they liked to fix the HD bugs first  :phew:.

tautech:

--- Quote from: hpw on April 01, 2024, 07:58:59 am ---
--- Quote from: tautech on March 31, 2024, 02:02:05 am ---SDS2000X Plus (8bit & 10bit mode) should remain as it is a good performer for the $.

--- End quote ---
And the SDS2000X Plus tuning is simple as it gets.
--- End quote ---
:-//
No comprende.

--- Quote ---The 10 bits helps a lot but BW is limited about 100Mhz.
--- End quote ---
Of course, it's accomplished via oversampling and without a 10bit 100 MHz BW limit aliasing could result.

Your point please ?

hpw:

--- Quote from: tautech on April 01, 2024, 08:51:14 am ---
--- Quote from: hpw on April 01, 2024, 07:58:59 am ---
--- Quote from: tautech on March 31, 2024, 02:02:05 am ---SDS2000X Plus (8bit & 10bit mode) should remain as it is a good performer for the $.

--- End quote ---
And the SDS2000X Plus tuning is simple as it gets.
--- End quote ---
:-//
No comprende.

--- Quote ---The 10 bits helps a lot but BW is limited about 100Mhz.
--- End quote ---
Of course, it's accomplished via oversampling and without a 10bit 100 MHz BW limit aliasing could result.

Your point please ?

--- End quote ---

@No comprende. Mira, the forum, IMHO, should be divided in three as: Rubios/Rubias & Hacker & Professional Gear  :-DD

Your point please : Why should I draw good money in more pitta. FW fixing for a long waitings, getting a little as I currently have. As ROI in question.

hp




 

KungFuJosh:

--- Quote from: hpw on April 01, 2024, 07:58:59 am ---In addition a upcoming FW for the SDS2000X Plus is also delayed or in question :palm:. As they liked to fix the HD bugs first  :phew:.

--- End quote ---

It's called beta testing. They test things thoroughly before release. That's what we call a good thing.

Performa01:

--- Quote from: KungFuJosh on March 31, 2024, 09:17:04 pm ---
--- Quote from: Electro Fan on March 31, 2024, 04:30:50 pm ---and yes this feature spec is not a big deal

just trying to understand the “why” and if there is any notable implication for the product (especially with respect to the support road map) beyond this one feature spec

it would be nice if someone from Siglent could explain it

--- End quote ---

Same, I'd like to know why. I can make some guesses, but there's no point in guessing. I don't think there's any real concern for the support roadmap for any of these for at least a few years.

--- End quote ---

Many thanks for not making wild guesses 😉

The hardware accelerated mask test has always been a key feature of Siglent DSOs, at least starting with the SDS2000 (with V2 firmware) in 2015. I haven’t ever used any older Siglent DSO, so I can’t say anything about these.

There are design decisions, often based on the requirements of professional customers. A hardware accelerated mask test is extremely nice to have when you need it, but once it is reasonably fast, it really doesn’t make that much of a difference if you can have 10k or 15k tests per second. The reason why higher-class instruments can have different (and sometimes seemingly inferior) specs is that they are a newer development, which uses a more complex peak-to-peak deviation comparison between signal and tolerance mask, which probably has some advantages, opens some opportunities for future development, and is even faster overall, but quite obviously cannot support Dots display mode, hence also not very high peak test rates.

The SDS2000X HD does not support Dots display mode during mask testing. In Vector display mode, the SDS2000X plus manages a maximum of 19.75 k per second. That’s not much different from the ~14 k/s of the SDS2000X HD.

We should get the complete picture: There are only two time-base settings, where the SDS2000X plus in Dots display mode is significantly (>1.5 times) faster than the SDS2000X HD in Vector display mode. On the other hand, the SDS2000X HD in Vector display mode is faster than the SDS2000X plus in Dots display mode, for all the time bases faster than 5 ns/div and slower than 1 µs/div.

That leaves us with only 50 ns/div and 100 ns/div in Dots display mode for the SDS2000X plus, which are significantly faster. How relevant is this small advantage compared to the better and more balanced overall mask-test performance of the SDS2000X HD?

Attached is the measurement results table for SDS2354X plus in Vector and Dots display mode and the SDS2504X HD.

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