Siglent SDS1000X HD versus SDS2000X HD

[tautech]

Among the reasons/benefits for the new memory management functionality is an enhanced capability to view and navigate waveforms and data that might have otherwise been off the display.

Benefits are limited and reasons were to account for some workflows that struggled with display width only capture methodology also used in some other analytical DSO brands.

It seems (I could be wrong about this) that the new/newer/enhanced user memory management capability didn’t make it into the 2000X Plus but did make it into the 2000X HD.

Correct, and we first saw Fixed memory introduced in SDS5000X IIRC.

Probably best to ask tautech et al which other Siglent models have the latest and greatest memory management, and if there are further distinctions in functionality among those that do.

Current models supporting Fixed Memory
SDS2000X HD
SDS5000X
SDS3000X HD
SDS6000A
SDS7000A

Fixed Mem has its advantages and disadvantages.
Fastest and best acquisition performance is with Auto mem management.

Neither suits all usage requirements.
Zoom mode and its split display is preferred by some for its extended capture and capability of fine inspection of a large capture.

Regardless of preference, deep memory capability always wins.

[Electro Fan]

To be 100% clear, seems like this should say:

Current models supporting both Fixed Memory and Auto Memory Management

SDS2000X HD
SDS5000X
SDS3000X HD
SDS6000A
SDS7000A

[tautech]

To be 100% clear, seems like this should say:

Current models supporting both Fixed Memory and Auto Memory Management.

SDS2000X HD
SDS5000X
SDS3000X HD
SDS6000A
SDS7000A

Correct but...... all models support Auto mem management.
I should also add, and Fixed Sampling rate management

[Electro Fan]

Zoom-in Zoom-out
Fixed vs Auto Memory Mgmt
Yada Yada
… but seeing a 2000X HD in black might be the over edge compelling buying criteria

https://siglentna.com/wp-content/uploads/dlm_uploads/2024/05/SDS2000X-HD_Datasheet_EN02A.pdf

[tautech]

Zoom-in Zoom-out
Fixed vs Auto Memory Mgmt
Yada Yada
… but seeing a 2000X HD in black might be the over edge compelling buying criteria

https://siglentna.com/wp-content/uploads/dlm_uploads/2024/05/SDS2000X-HD_Datasheet_EN02A.pdf

I quizzed HQ when 'dark side' models were to be introduced a few month back after spotting them in posters and such.
When was never revealed ..... 

[Martin72]

Correct but...... all models support Auto mem management.

However, the “Auto Memory only” models still have a kind of manual memory preset.
Just less than possible, e.g. if 100Mpts are possible, this value can be reduced via the menu.
But not fixed.

[KungFuJosh]

Any hardware changes besides the case color?

[Martin72]

That´s a good and interesting question Josh.
However, I think Siglent wants to distinguish all their 12 bit models from the rest by color and nothing else.
We will really know when someone has both and can compare them.
Or simply trust the data sheet.

[KungFuJosh]

Yes, I'm curious because we know the 1000X HD model changed with the color change, but that wasn't on the global market yet...and of course because of some things that improved since the release of the 2000X HD.

[tautech]

Yes, I'm curious because we know the 1000X HD model changed with the color change, but that wasn't on the global market yet...and of course because of some things that improved since the release of the 2000X HD.

Because HW changes were necessary to meet market expectations, SDS2000X HD, not so much as further improvement can be accomplished in FW.

[Electro Fan]

Any hardware changes besides the case color?

+1 for interested to learn if/as there are changes in the 2kX HD

[tautech]

Latest datasheet link:
https://int.siglent.com/u_file/download/24_05_29/SDS2000X%20HD_Datasheet_EN02A.pdf

2022 version attached.

[Electro Fan]

Anyone with a known accurate freq generator up for feeding a 9,999,999.0 Hz signal into a 2k HD and seeing what counter says?  Thx

[tautech]

Anyone with a known accurate freq generator up for feeding a 9,999,999.0 Hz signal into a 2k HD and seeing what counter says?  Thx

Datasheet hints at this as SDS2000X HD has a good frequency reference:
Time base Accuracy: ±2 ppm initial (0~50℃); ±0.5 ppm 1st year aging; ±3 ppm 20-year aging

[Electro Fan]

Yep, saw that, Thx - just checking to see if someone wants to let one warm up for ~30 min and test it to see what happens

I’m guessing it’s going read somewhere between ~20 Hz too high and ~20 Hz too low, but would be interesting to find out …

[tautech]

Yep, saw that, Thx - just checking to see if someone wants to let one warm up for ~30 min and test it to see what happens

I’m guessing it’s going read somewhere between ~20 Hz too high and ~20 Hz too low, but would be interesting to find out …

Those that test these instruments in greater detail than I can will tell you Siglent are conservative with their ratings.
It might be half what you expect is what I'm trying to say.

The little SDS800X HD for example has a much lesser timebase accuracy spec (time nuts run away  ) of some 25ppm yet none I have seen are anywhere that poor.
Mine's ~9ppm and others I see here ~12ppm.

[Electro Fan]

Ok
Let’s see if we can get measurements from 3 users…

[2N3055]

Yep, saw that, Thx - just checking to see if someone wants to let one warm up for ~30 min and test it to see what happens

I’m guessing it’s going read somewhere between ~20 Hz too high and ~20 Hz too low, but would be interesting to find out …

Mine reads 10.00001 MHz cold, on switch on. After few minutes it reads 10.0000, with occasional flip to 10.00001 MHz
Scope is 2+ years old now.
Counter is simple counter, so last digit has ±1 digit uncertainty..

[Electro Fan]

Thx
That’s when you fed it an accurate 9,999,999.0 Hz?

[2N3055]

Thx
That’s when you fed it an accurate 9,999,999.0 Hz?

10MHz on the dot.

[Electro Fan]

Just for grins, what do you get when you set it for 9,999,999 Hz on the dot? Thx

[2N3055]

Just for grins, what do you get when you set it for 9,999,999 Hz on the dot? Thx

Maybe later I can connect it to AWG and see. This was just 10 MHz OCXO..

The point is that last digit is 1ppm.
Time base Accuracy ±2 ppm initial (0~50℃); ±0.5 ppm 1st year aging; ±3 ppm 20-year aging..

So we are at 0ppm initial and <1ppm for aging in 2 years. For instance.
Or, <1ppm initial error and 0ppm aging.
Or <0.5ppm initial and <0.5ppm aging in 2 years..

So definitely in spec.

[Electro Fan]

Any other users with a 2000X HD and an accurate frequency generator up for seeing what the counter says with a 9,999,999.0 Hz input signal? Thx

[Grandchuck]

Not exactly what you asked, but ...............

[gburdzin]

My 2000HD is only 1.5 months old with very little use so far (single digit hours).  When I feed it a 9 999 999 Hz signal from an SDG2042X that is using a GPSDO external reference, the scope's frequency counter is showing 10.00000MHz.

When I adjust the frequency down 1Hz at a time, the scope's frequency counter changes briefly but then settles back to 10.00000MHz.  Once I hit 9 999 994Hz on the source, the scope's frequency counter finally ends up settling to a value of 9.99998MHz.

Adjusting the frequency up 1Hz at a time, the scope's frequency counter shows 10.00001MHz when the source is set to 10 000 001Hz, but then stays there until the source reaches 10 000 012Hz, at which point the scope shows a reading of 10.00002MHz.

I hope that helps.