Siglent SDS3000X HD and upgraded SDS1000X HD

[KungFuJosh]

I'm not a somnambulist

Are you sure you haven't sleep walked into a manual or two? 🤣

[2N3055]

I'm not a somnambulist

Are you sure you haven't sleep walked into a manual or two? 🤣

A somnascriptor ??

[Martin72]

It would be great if performa01 would contribute to the manuals.
The documentation is something that, in my opinion, is not yet running smoothly at Siglent.
Be it that the manuals are not updated after various feature upgrades.
Or that certain special functions are not sufficiently explained.
If there are application notes for this, it would be nice if there was at least a reference to this.

[temperance]

I just tried the new software released by Siglent sigscopelab.

But this software seem to require some work.

-Setting the time base cycles the time base on the remote device between 1 s, 2 s, 10 ns instead of following the required setting.
-The application frequently freezes, a command window appears and disappears.

I didn't do any further tests.

Also, this is a free version. I hope they are not planning to release sub standard node locked pay ware like other brands do.

[KungFuJosh]

I just tried the new software released by Siglent sigscopelab.

But this software seem to require some work.

It needs a lot of work, but it's free (at least for now). I tried it with my SDS2504X+, and it worked pretty well, but putting the scope in 10 bit mode made it crazy.

[DaneLaw]

[KungFuJosh]

Nice! Biggest issues I saw:
5:05 didn't know the difference between the internal LA hw or external LA hw connections...
11:32 still didn't know LA hw is external, assumes the zynq chip is handling the LA stuff.
If you don't want to RTFM, look at the product page quickly and you can see the external logic hardware listed.

[ebastler]

As expected, the core architecture seems very similar to the 800X HD series. The front ends differ, of course, due to the 50 Ohm support in the 1000 series.

I am still puzzled by the dual ADCs. Why did Siglent splash out on those, given that the total sampling rate across all active channels is always 2 GSa/s maximum in the SDS1000X HD? Does this imply that the scope could technically run at 2*2 GSa/s (or 4*1 GSa/s) and is just throttled to keep the higher-end models differentiated?

It's the same for the 800X HD platform, of course. But I don't think we ever reached a conclusion there? 

[Martin72]

I would rather enjoy the fact that there has never been so much “scope” for the money as there is now, instead of brooding about it.
Not so long ago, the 12-bit ADCs used were cited as one of the reasons why the 2000X HD was twice as expensive as the 2000X plus.
Now you can get them in a 500€ model.

[ebastler]

I would rather enjoy the fact that there has never been so much “scope” for the money as there is now, instead of brooding about it.
Not so long ago, the 12-bit ADCs used were cited as one of the reasons why the 2000X HD was twice as expensive as the 2000X plus.
Now you can get them in a 500€ model.

Who's brooding? I am just curious why certain design decisions were made and what they imply. Maybe there is something to be learned?

Let's face it, most of our threads here are about "scopology" rather than about using the scopes in practice. (Which is fine by me, there are Project setions etc. which discuss the latter.) No doubt that we get excellent affordable scopes today, which most of the time we won't even use at their full potential. But what's wrong with also being curious about how they work, how they were designed and why? The Test Equipment section would be pretty quiet otherwise.

[core]

I'm waiting for a teardown showing which FPGA and ADC are used in the SDS800X HD. The ADC converter seems to have the smaller capsule vs the SDS1000X HS, but the FPGA might be the same.

Indeed, it's a shame to waste resources, in the sense of not making full use of the ADC converter. 2 x 2GS/s would have made more sense.

If there were limits in the FPGA for example, it would have been logical and cheaper to use an ADC with 4 x 1GS/s channels in the same capsule.

However, we can still enjoy these devices considering the price/performance ratio.