Siglent SDS2000X Plus

[dEdt]

By the way I do have problems with some intermittent contact loss on three logical channels, see attached photos. The connection to the scope seems to be the area of the failure as this effect can be provoked by slightly wiggling the connector on Scope side. Does anyone else have seen comparable issues?

Just checked a unit I have here with very few if any Logic probe cycles and yes some intermittency in its connection here too however on just one channel.
So I pressed and held both probe release catches then pulled and pushed it a few times to clear any possible tarnishing from the pads and contacts which seems to have totally fixed it.   


So it seems just a few removal/insertion cycles will improve intermittent connections.

I did the cycling trick as well. But the effect remains. I hope it is a contact surface problem anyhow on PCB side and NOT a problem on Scope side (Connector, Soldering, PCB)...

Understood but let's look at the PCiE socket which I think is through hole and millions of them get soldered onto PC PCB's without problems.
Someone mentioned a while back they do have a mating cycle life however without looking it up I don't know what it is. Maybe yours just needs a few more insertion/removal cycles ? 

Time to get my magnifying glass out ....... 

true, so probably on probe side. It is interesting that it is related to channel 8, 9 and 10 which are located at the edge of the PCB connector (thanks to info from Vestom). Hmmm
I contacted my supplier for further treatment, let's see.

Update.
A close inspection of the MSO probe plug didn't identify any obvious issues however cleaning of the PCiE plug PCB pads with a cotton bud and IPA has solved all intermittent MSO probe connection problems.
Note, one side has just enough clearance for an ordinary cotton bud while the other side requires a thinner bud or one bashed/squeezed thin or stripped down some.

I'll be checking new stock MSO probes for any repeat of this issue and advising Siglent if there is.

Hi tautech,

its's kind of funny I thought "Time to get my magnifying glass out" meant having an after-work beer...
Yes IPA cleaning is always a good idea, but as it's new equipment from supplier (and not the cheapest one) I wait for his advice. For me it's important to know that I am not the only one facing this issue and only do nitpicking.
This kind of connection seems to be a week point and anybody who uses the logic probe without check beforehand could run into nasty "Ghost problems" of the device under test...

Thanks again
jse

[Frank_MV]

Hi,
where can I find a comparsion (review) between the Rohde & Schwarz RTB2000 Oscilloscope and the  Siglent SDS2000X Plus ?

br,
Frank

[shtoz]

Hi guys,

At this time i don't need high R&D capabilities of my Lecroy wavepro oscilloscopes, and i am looking for some smaller oscilloscope.

I have some questions:
1. How good this siglent are in terms of DC offset and saturation? In Lecroy scopes you can offset you signal and "zoom in" up to several times needed piece of you signal without distortion. I mean this https://youtu.be/n_dXvpEV18g?t=155
2. Can someone provide screenshots of sin 200Mhz and 400Mhz with linear interpolation (without sinx/x interpolation) with 2Gs/s and 1Gs/s SR?
3. Can someone provide screenshots of fast rise meander with linear interpolation (without sinx/x interpolation) with 2Gs/s and 1Gs/s SR?

Thanks!

Hi,
Can anyone help me?

Thanks

[Howardlong]

Hi guys,

At this time i don't need high R&D capabilities of my Lecroy wavepro oscilloscopes, and i am looking for some smaller oscilloscope.

I have some questions:
1. How good this siglent are in terms of DC offset and saturation? In Lecroy scopes you can offset you signal and "zoom in" up to several times needed piece of you signal without distortion. I mean this https://youtu.be/n_dXvpEV18g?t=155
2. Can someone provide screenshots of sin 200Mhz and 400Mhz with linear interpolation (without sinx/x interpolation) with 2Gs/s and 1Gs/s SR?
3. Can someone provide screenshots of fast rise meander with linear interpolation (without sinx/x interpolation) with 2Gs/s and 1Gs/s SR?

Thanks!

Hi,
Can anyone help me?

Thanks

1. How good this siglent are in terms of DC offset and saturation? In Lecroy scopes you can offset you signal and "zoom in" up to several times needed piece of you signal without distortion. I mean this https://youtu.be/n_dXvpEV18g?t=155

Changing the offset typically adjusts the front end amp offset. The Siglent offers, for example, +/-2V offset for a 100mV/div vertical sensitivity.

Regarding saturation, it's very dependent on front end amplifier recovery time. Typically, I simply wouldn't ever deliberately run a scope's front end outside vertical graticule range. The demonstration in the video you shared isn't showing what they're purporting to show by the way. The MSO5000 has a terribly noisy front end, at least 10dB worse than the Siglent in my measurements. They're also running that demo at quite a slow speed, 1ms/div. While it's interesting to see, they don't show it at higher speeds, there's probably a reason for that.

Anyway, I ran a very similar test for you. 1ms/div, 500mV/div down to 20mV/div in 10 bit. One zoom real time, the other is zooming in on a captured signal.







2. Can someone provide screenshots of sin 200Mhz and 400Mhz with linear interpolation (without sinx/x interpolation) with 2Gs/s and 1Gs/s SR?









3. Can someone provide screenshots of fast rise meander with linear interpolation (without sinx/x interpolation) with 2Gs/s and 1Gs/s SR?










Edit: forum's done its bit to screw up the picture orders, I am sure you can figure out which is which, I've burned an hour on your questions already, I hope you don't mind.

[shtoz]

hi Howardlong, i really appreciate for your help!!!

https://www.eevblog.com/forum/testgear/siglent-sds2000x-plus-coming/?action=dlattach;attach=1069316;image
As can be clearly seen sinx/x interpolation is used

https://www.eevblog.com/forum/testgear/siglent-sds2000x-plus-coming/?action=dlattach;attach=1069288;image
at what V/div setting there are no visible distortions of a signal? 50mV/div or more?

Best regards,

[Howardlong]

hi Howardlong, i really appreciate for your help!!!

https://www.eevblog.com/forum/testgear/siglent-sds2000x-plus-coming/?action=dlattach;attach=1069316;image
As can be clearly seen sinx/x interpolation is used

https://www.eevblog.com/forum/testgear/siglent-sds2000x-plus-coming/?action=dlattach;attach=1069288;image
at what V/div setting there are no visible distortions of a signal? 50mV/div or more?

Best regards,

Sorry, as I mentioned already, I already burned an hour setting up the environment and tests to answer your questions, I strongly advise you to get hold of the scope and try it out yourself, I can see that whatever answers I give are going to be met with more questions.

In short, I have both an MSO5000 and an SDS2000x plus, and overall the Siglent is by far the better purchase. If the Rigol was less buggy, had a more responsive UI, and a less noisy front end, I'd reconsider. Two of those three concerns could be solved in software, but Rigol have had that scope on the market for a long time, so I wouldn't hold your breath. The noisy front end I don't believe is retrievable.

[Martin72]

The noisy front end I don't believe is retrievable.

Therefore and with the answer of the rigol support, the next higher series (7000) won´t do it better, made me changed to siglent, until now with no regret so far in general.

[shtoz]

hi Howardlong, no more questions, again thanks for you help.
I was not interested in china scopes in the past, but Siglent SDS2000X Plus seems not bad "Lecroy copy"

[Martin72]

I was not interested in china scopes

Scopes made in china, scopes with parts made in china or only chinese brands ? 

[Howardlong]

hi Howardlong, no more questions, again thanks for you help.
I was not interested in china scopes, but Siglent SDS2000X Plus seems not bad "Lecroy copy"

And yet you did seem interested in the MSO5000's front end saturation?

[shtoz]

No, video from rigol was only for illustration what i mean and what Lecroy wavepro oscilloscopes can do without a problem. But can Siglent do that is an open question.

[maginnovision]

No, video from rigol was only for illustration what i mean and what Lecroy wavepro oscilloscopes can do.

The effect of wasting peoples time is that they're less likely to help others in the future. If you didn't care then why did you ask?

[shtoz]

No, video from rigol was only for illustration what i mean and what Lecroy wavepro oscilloscopes can do.

The effect of wasting peoples time is that they're less likely to help others in the future. If you didn't care then why did you ask?

where did you get that I don't care
I was asking about Siglent SDS2000X Plus capabilities in that aspect, not Rigol!

[Howardlong]

No, video from rigol was only for illustration what i mean and what Lecroy wavepro oscilloscopes can do without a problem. But can Siglent do that is an open question.

Can Lecroys do that? Front end offset and saturation are two different things. What is the Lecroy's front end saturation recovery speed?

I wouldn't typically operate a scope front end beyond the graticule limits.

Let's take a look at that Rigol test again. https://youtu.be/n_dXvpEV18g

But this time, instead of a 125Hz signal with ~2kHz modulation on it, let's do it at 1250Hz and 20kHz. So we're still pretty slow. It's not very pretty now, is it?

To me, the test in that video is very misleading, it's not really demonstrating "high resolution", or, by using a cherry picked scenario "better dynamic range".

[shtoz]

Can Lecroys do that? Front end offset and saturation are two different things. What is the Lecroy's front end saturation recovery speed?

Hi Howardlong, sorry, its my poor english, I misled you . I mean huge frontend DC offset when it linearity is acceptable. But mean saturation in terms of screen, when part of signal is "out of screen".

Pls accept my apologies

[Howardlong]

Can Lecroys do that? Front end offset and saturation are two different things. What is the Lecroy's front end saturation recovery speed?

Hi Howardlong, sorry, its my poor english, I misled you . I mean huge frontend DC offset when it linearity is acceptable. But mean saturation in terms of screen, when part of signal is "out of screen".

Pls accept my apologies

They achieve that by sampling at 12 bits and displaying at lower resolution when zoomed in. You can do a similar thing with many scopes with >8 bit resolution, including the Siglent, when you use zoom mode when sampling at higher bit resolution, but the video you cited isn’t showing that.

[jemangedeslolos]

I couldn't resist more 

[2N3055]

I couldn't resist more 

Hahaha temptation is a bitch...

Congrats, and hope it will serve you well!
Regards
Siniša

[Martin72]

You´ve bought a box, congrats ! 

[Johnny B Good]

I couldn't resist more 

Hahaha temptation is a bitch...

Congrats, and hope it will serve you well!
Regards
Siniša

 Yeah, the SDS2000X Plus is just the thin end of the wedge.

 I haven't taken that step yet but I think it's time to stop prevaricating over choosing an SDG1032X over the SDG2042X and blow another 280 quid on a "cheap" upmarket replacement for my humble FY6600. 

John

[Martin72]

A few months ago, I was on the decision taking the 1032X or 2042X, because I wanted an external AWG additional to the inbuilt version of the sds2k+
I took the 1032X, turned it to 1062X and never regret it.

I couldn't resist more

You won´t regret it, the sds2k+ musn´t fear any seriously opponents until say 3000...4000bucks, although it did´t got the super-duper 8GSa/s the rigols got.

[jemangedeslolos]

I couldn't resist more 

Hahaha temptation is a bitch...

Congrats, and hope it will serve you well!
Regards
Siniša

Yeah, almost everyone is happy with this baby Lecroy so I couldn't go wrong.
I've had to move around a lot lately and the fact that he's so small is great.
I think it's the cheapest and smallest 10inch screen scope on the market.

The UI and the specs are very good for the price so It will be perfect for working from home.
I already have some ideas for improvement but it is very specific to my use.
I asked Rigol the same things. We will see if Siglent really decided to play in the big brand leagues 

I just wanted to add that I usually buy my TE from Batronix but this time I tried at Batterfly and the service is impeccable and very responsive. Bought Friday and delivered Tuesday 
I will have to buy some probes and I don't know where to buy because they are both very efficient 

Now I will be able to check by myself how the SDS2000X Plus manages to trigger on a video signal compared to my Rigol just for curiosity thanks to the small camera that we see in the picture 

[jemangedeslolos]

A few months ago, I was on the decision taking the 1032X or 2042X, because I wanted an external AWG additional to the inbuilt version of the sds2k+
I took the 1032X, turned it to 1062X and never regret it.

I couldn't resist more

You won´t regret it, the sds2k+ musn´t fear any seriously opponents until say 3000...4000bucks, although it did´t got the super-duper 8GSa/s the rigols got.

We must not exaggerate. There is at least the sds5000x and this is not the same beast.
The thing that kills the market is the keygen!
Besides, who is behind this work? tv84 again?


Martin72, weren't you the one who bought a rigid case for transporting the scope? Do you have a reference?
Thank you 

[Martin72]

We must not exaggerate

It isn´t, as I got access to new lecroy scopes of the upper class, had the rigol 5000 and could compare - But of course, you´re right, I´ve forgot the 5K.
This is truly the next level.

[Martin72]

Martin72, weren't you the one who bought a rigid case for transporting the scope? Do you have a reference?

Yes it was me and this thing is rock-solid...I´ll search for it, then post it.