Products > Test Equipment

Siglent SDS1000X HD versus SDS2000X HD

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KungFuJosh:

--- Quote from: Electro Fan on March 27, 2024, 11:19:25 pm ---So bottom line, if the testing was set up properly and the newest firmware was installed the X HD would perform as well or better than the X Plus on the digital channels?  Or there is still some advantage for the X Plus?

--- End quote ---

That's my assumption as well. However, testing is better than assuming. I would take a look at the conversation Martin linked.

Electro Fan:

--- Quote from: Martin72 on March 27, 2024, 11:22:29 pm ---
--- Quote from: KungFuJosh on March 27, 2024, 11:06:40 pm ---
--- Quote from: Electro Fan on March 27, 2024, 10:51:00 pm ---Just giving Frex's post a bump in case anyone can comment on the youtube video showing the performance of the X Plus vs the X HD for digital signals.  Is that because processing the 8 bit signals is easier than processing 12 bit signals or maybe the test wasn't done properly or something else?  Thx

--- End quote ---

Pay close attention to the fact that the devices are not setup the same. It's mentioned in the comments on the video too. There's also a link to the thread where it's discussed further here...and the video is 2 years old, so it's not even relevant firmware anymore.

--- End quote ---

Discussion started here:

https://www.eevblog.com/forum/testgear/siglent-sds2000x-hd-12bit-(published-for-chinese-domestic-market-only)/msg4514990/#msg4514990

And following.

--- End quote ---

Martin72 and others, thanks for referencing the thread but I don't see anything that definitely explains the performance difference.  I saw other people saying they had similar results to what was in the video and I saw the suggestion that there were setup differences and I saw that there might or might not have been a bug report to Siglent and I saw that there was new firmware - but I didn't see where (in the thread or anywhere else) the performance difference was ever refuted or definitively explained.  Sorry if I missed it.  Was there a clear resolution?  If so, maybe someone can please cite it?  Thx

Martin72:

--- Quote ---Martin72 and others, thanks for referencing the thread but I don't see anything that definitely explains the performance difference.
--- End quote ---

The link was also only meant to show that there was a discussion about it, including confirmations that the person who first noticed it did nothing wrong, because others could also reproduce it.
That's all there is to it, it came to nothing.
I bought a set of original logic probes much, much later and didn't notice anything detrimental during my tests.
Perhaps the update rate hardly plays a role in this case.
Or it was fixed in the last firmware update.
If there are any concerns, I would mention this again in the bug thread, it will get lost here.

Electro Fan:

--- Quote from: Martin72 on March 27, 2024, 11:54:47 pm ---
--- Quote ---Martin72 and others, thanks for referencing the thread but I don't see anything that definitely explains the performance difference.
--- End quote ---

The link was also only meant to show that there was a discussion about it, including confirmations that the person who first noticed it did nothing wrong, because others could also reproduce it.
That's all there is to it, it came to nothing.
I bought a set of original logic probes much, much later and didn't notice anything detrimental during my tests.
Perhaps the update rate hardly plays a role in this case.
Or it was fixed in the last firmware update.
If there are any concerns, I would mention this again in the bug thread, it will get lost here.

--- End quote ---

Martin, thanks.  I posted here in part because I was thinking I might "need" ;)  a 1000X HD or a 2000X HD rather than a 800X HD.  So just to clarify, I'm not trying to report a bug - just trying to understand a few performance differences (and discrepancies?) mostly between the 1000X HD and 2000X HD but also among some of the other down stream, up stream, and adjacent models.

To be candid, I might have developed a variant of TEA called "New Siglentitis" - which I think I contracted from trying to read all the HD posts and discussions around here - and now I'm very close to pulling the trigger on a 2000X HD.  But when I see reports that somehow the 800 and the 1000 outperform the 2000 and 3000 on the mask measurements, and maybe the 2000X Plus outperforms the 2000X HD on the digital channels I start to wonder if I'm too far out over my skis? 

Maybe I don't understand enough about the FPGA or other architectural aspects of the Siglent product family to make an intelligent decision.

For example, just above in this thread we have these specs:

SDS800X HD and SDS1000X HD
Mask test speed  Up to 80,000 frames/s

SDS2000X HD
Mask test speed  Up to 14,000 frames/s

SDS3000X HD
Mask test speed  Up to 28,000 frames/s

I don't really absolutely "need" all of the features or any particular specs mentioned but I'd like to at least make a good decision among the available models.

fwiw I have a 2000X HD sitting in a shopping cart but these last two outlier cases (mask speed and digital channel performance) are causing some cognitive dissonance.  |O 

Maybe I just need to slow down and better understand the X HD line up from the 800 thru the 2000 series.  After a few weeks of reading/studying I thought the safe/preferred choice was the 2000X HD and I was ready to hit the go button but between the X HD mask specs and now the X Plus vs X HD digital channel video I am having "almost buyer's" remorse.  :-\

That's my story and I'm sticking to it - but I'm open to therapy.   ;D

egonotto:
Hello,

I have the mask test speed data from the data sheets. I don't know whether this data is correct. I have found errors in data sheets from time to time. I also don't know whether the mask tests are equally powerful in different devices.

Best regards
egonotto

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