Siglent SDS2000X Plus

[rfspezi]

I have to say that i really don't like the wobbly cheap feeling of all of the rotary knobs on the SDS2000X Plus series.
If it feels like that after 5 years of constant use it would be "ok" but as a brand new unit it is simply not acceptable.

[IAmBack]

I have to say that i really don't like the wobbly cheap feeling of all of the rotary knobs on the SDS2000X Plus series.
If it feels like that after 5 years of constant use it would be "ok" but as a brand new unit it is simply not acceptable.

So maybe use of a mouse is a good idea? You barely touch the scope when this little device is attached.

[tautech]

I have to say that i really don't like the wobbly cheap feeling of all of the rotary knobs on the SDS2000X Plus series.
If it feels like that after 5 years of constant use it would be "ok" but as a brand new unit it is simply not acceptable.

Not seen a single encoder failure in any Siglent equipment, maybe I just haven't sold enough 1000's of them. 

I have to say that i really don't like the wobbly cheap feeling of all of the rotary knobs on the SDS2000X Plus series.
If it feels like that after 5 years of constant use it would be "ok" but as a brand new unit it is simply not acceptable.

So maybe use of a mouse is a good idea? You barely touch the scope when this little device is attached.

This and a keyboard too !
While the UI is pretty good in these I have asked for improvements with use of the scroll wheel rather than a click and drag in menu lists.
A couple nights back while taking lots of detailed screenshots for a customer in another Siglent product, rather than with the mouse selecting letters and upper/lower uppercase for file names I used a cheap wireless keyboard instead which like a mouse in theses scopes really speeds the job up for many tasks.

[Hasgay]

The SDS2000X PLUS seems to have a common issue where the baseline is slanted in the first 2ms without a probe connected. The first three images are from my oscilloscope, and the last image is from a reply on page 147, #3660, which appears to have the same problem. Is this the case for everyone?

[tautech]

The SDS2000X PLUS seems to have a common issue where the baseline is slanted in the first 2ms without a probe connected. The first three images are from my oscilloscope, and the last image is from a reply on page 147, #3360, which appears to have the same problem. Is this the case for everyone?

Welcome to the forum.

Please state SW and HW versions from the Sys Info page.

[rf-loop]

The SDS2000X PLUS seems to have a common issue where the baseline is slanted in the first 2ms without a probe connected. The first three images are from my oscilloscope, and the last image is from a reply on page 147, #3360, which appears to have the same problem. Is this the case for everyone?

This is well known.
Afaik there is coming FW solution for solve this in some HW versions where this exist. (time table unknown now)

[Hasgay]

Thank you very much,It was purchased this year, and the system information is as follows:

[Hasgay]

Thank you, and forgive me for not reading the previous discussion carefully.

[Martin72]

The SDS2000X PLUS seems to have a common issue where the baseline is slanted in the first 2ms without a probe connected. Is this the case for everyone?

Pics from one of our scopes today, bought in the last year.

[Hasgay]

Pics from one of our scopes today, bought in the last year.

Thank you, Martin. Will the 200us time base appear? Or try to trigger the level to be far from the baseline.

[Performa01]

For what I know, this problem has been found in HW 05. HW 02 most definitely doesn't have a problem.

As rf-loop already stated, there will be a solution in the next firmware.

[Tankj]

The SDS2000X PLUS seems to have a common issue where the baseline is slanted in the first 2ms without a probe connected. The first three images are from my oscilloscope, and the last image is from a reply on page 147, #3660, which appears to have the same problem. Is this the case for everyone?

我是20年才出的时候买的，硬件版本是02 00，从没遇到过这个问题。应该就是新版本硬件的关系，官网152R2固件说修复了更新的06XX硬件的线粗问题，你都是最新的152R3固件了，看来你这个问题还没有修复哦。不过鼎阳固件更新挺快的，等等看吧

[Peter_O]

The SDS2000X PLUS seems to have a common issue where the baseline is slanted in the first 2ms without a probe connected. The first three images are from my oscilloscope, and the last image is from a reply on page 147, #3660, which appears to have the same problem. Is this the case for everyone?

我是20年才出的时候买的，硬件版本是02 00，从没遇到过这个问题。应该就是新版本硬件的关系，官网152R2固件说修复了更新的06XX硬件的线粗问题，你都是最新的152R3固件了，看来你这个问题还没有修复哦。不过鼎阳固件更新挺快的，等等看吧

translated: "I bought it when it was released in 2020. The hardware version is 02 00. I have never encountered this problem. It should be related to the new version of hardware. The 152R2 firmware on the official website said that the line thickness problem of the updated 06XX hardware has been fixed. You are all the latest 152R3 firmware. It seems that your problem has not been fixed yet. But Dingyang firmware update is very fast, wait and see"

[Hasgay]

This is a small bug. Anyway, thank you for your answers.

[JDW]

Seems like Doom runs quite well on the Rigol MSO5000-series, but what about on the SDS2000X Plus? :-)



You can use a Mouse & Keyboard with Siglent scopes, so that should in theory make it more easy to play.

[JDW]

The SDS2000X Plus series has 1MΩ/50Ω selectable inputs and FFT functionality.  I have an D-130 antenna connected to the 50Ω input of my old HP 8591E Spectrum Analyzer.  Can I use an SDS2000X Plus scope in similar manner to a dedicated spectrum analyzer by switching the input to 50Ω and then connecting my antenna and running the FFT to show me an on-screen display similar to my HP8591E?  (For example, on my HP, I can press the button of a say a 303.875MHz RF transmitter and see that on the scope, and I can then zoom in on that frequency and limit the horizontal display range to 10MHz, 1MHz, 100kHz, etc.  Wonderfing what's possible on the Siglent when using FFT an a 50Ω antenna.)

Thanks.

[Performa01]

The SDS2000X Plus series has 1MΩ/50Ω selectable inputs and FFT functionality.  I have an D-130 antenna connected to the 50Ω input of my old HP 8591E Spectrum Analyzer.  Can I use an SDS2000X Plus scope in similar manner to a dedicated spectrum analyzer by switching the input to 50Ω and then connecting my antenna and running the FFT to show me an on-screen display similar to my HP8591E?  (For example, on my HP, I can press the button of a say a 303.875MHz RF transmitter and see that on the scope, and I can then zoom in on that frequency and limit the horizontal display range to 10MHz, 1MHz, 100kHz, etc.  Wonderfing what's possible on the Siglent when using FFT an a 50Ω antenna.)

Short answer: yes, you can do it within the bandwidth of the DSO (max. 500 MHz).

Slightly longer answer: for achieving the best results, the setup of the DSO is a little more involved as that of an SA. To learn about the basics of FFT in a modern Siglent DSO, you can study the corresponding chapters of my review of the SDS1104X-E. This scope doesn't have internal 50 ohms termination, but an external through terminator does the job for lower bandwidths like this. The article also contains some examples, including a broadcast overview of the FM radio band:

https://www.eevblog.com/forum/testgear/siglent-sds1104x-e-in-depth-review/msg1371782/#msg1371782

Of course, this is a bit outdated by now and additional tools and features have been added even to the low end SDS1004X-E series since then. For example, the setup is a bit easier now, because we can choose any FFT length independently, as long as it is not longer than the record length. Consequently, all the extensive tables in the article have become meaningless by now.

Because of this, the basic setup for a contemporary Siglent DSO is better described in the following post:

https://www.eevblog.com/forum/testgear/rohde-schwarz-rtb2002-vs-siglent-sds2104x-plus/msg3239832/#msg3239832

Compared to the HP8591 the bandwidth is lower of course, but the potential RBW can be narrower. For analyzing the modulation spectra at higher frequencies, the max. FFT length of 2 Mpts might be insufficient, but for an exclusive signal, as from a nearby transmitter, we can always resort to undersampling as demonstrated in the following post:

https://www.eevblog.com/forum/testgear/siglent-sds2000x-hd-12bit-(published-for-chinese-domestic-market-only)/msg4320658/#msg4320658

[JDW]

...you can study the corresponding chapters of my review of the SDS1104X-E. This scope doesn't have internal 50 ohms termination, but an external through terminator does the job for lower bandwidths like this.

Thank you, but just to clarify, the Siglent SDS2104X Plus, according to page 27 of the User Manual, has switchable 1MΩ or 50Ω impedance for the inputs.  As such, no adapter should be needed for that model scope.

[Performa01]

Of course, all Siglent scopes of the 2000 series and up have switchable 50 ohms input termination.

I just  wanted to make it clear that this is no prerequisite for using the scope as an RF spectrum analyzer - at least not up to some100 MHz, where an external pass through terminator gives still usable results. Because of the input cpacitance of the 1 megohm input, we get an increasingly bad SWR at higher frequencies.

[tautech]

NEW PROMOTION
https://int.siglent.com/info/detail-68.html
All models purchased from May 1 until October 31 2023.
FREE BW upgrade to next model:
SDS2104X Plus > SDS2204X Plus, SDS2204X Plus > SDS2354X Plus, SDS2354X Plus > SDS2504X Plus

Enquire at your dealer.

[smallfreak]

I played around with my new SDS2000X Plus for a couple of days now and I'm really impressed. There are still a few things that are not obvious to me, like the PP215 probes or especially the stuff that gets shipped with the probes.

There are two yellow "locating sleeves". I know them from an unbranded chinese probe set that i own. But other than the unbranded probes, I cannot fit the sleeves onto the probe and have the tip poking through. Either the tip is too short or I cannot put the sleeve far enough down.

I have 4 probes and thus eight of these sleeves. No combination works.

The sleeves from the other set of probes would almost fit. The tip pokes through just the right amount, but they are too wide and slip off the PP215.

Am I missing something or are these sleeves some kind of joke?

[JDW]

NEW PROMOTION

All models purchased from May 1 until October 31 2023.
FREE BW upgrade to next model:
SDS2104X Plus > SDS2204X Plus, SDS2204X Plus > SDS2354X Plus, SDS2354X Plus > SDS2504X Plus

Enquire at your dealer.

No mention of that on TEquipment product pages:
https://www.tequipment.net/Siglent/SDS2104X-Plus/Digital-Oscilloscopes/

Or must we email them to ask for that free BW upgrade?  Or is it a limited promotion to select dealers?

But obviously, since there is a hack available, the best promotion is an outright discount, rather than a free BW upgrade.  An exception to that would be if the free BW upgrade included a probe upgrade, to higher BW probes. For example, if I examine the SDS2204X Plus on TEquipment, it says it includes the same 200MHz probes that come with the SDS2104X Plus.  So if one qualified for a mere BW upgrade alone and no probe upgrade, then you really wouldn't get a huge advantage because your 200MHz probes would limit the amplitude of the detectable waveforms.  (Even at a 200MHz BW, the 200MHz probes are not ideal.)

[Performa01]

But obviously, since there is a hack available, the best promotion is an outright discount, rather than a free BW upgrade.  An exception to that would be if the free BW upgrade included a probe upgrade, to higher BW probes. For example, if I examine the SDS2204X Plus on TEquipment, it says it includes the same 200MHz probes that come with the SDS2104X Plus.  So if one qualified for a mere BW upgrade alone and no probe upgrade, then you really wouldn't get a huge advantage because your 200MHz probes would limit the amplitude of the detectable waveforms.  (Even at a 200MHz BW, the 200MHz probes are not ideal.)

Not everyone takes it for granted to get a feature-rich 500+ MHz DSO with huge memory for about $1300,- because of the hack. There are even folks (mainly the professionals), who forego the hack and pay regular prices. Unsurprisingly, any promotios are meant for these exclusively.

It is amazing how the misinformation about probes keeps floating around, spread by folks who quite obviously never measured the system performance of any scope/probe combination.

Once again I'd like to point to the information that can be found in an old but relevant thread, e.g. reply #191:

https://www.eevblog.com/forum/testgear/siglent-sds1104x-e-in-depth-review/msg3290546/#msg3290546

Base line:

• A passive high-Z probe isn't terribly useful for practical work at frequencies above 100 MHz, no matter what the bandwidth rating is.
• The bandwidth rating of a passive high-Z probe has little to do with its actual performance in combination with a certain scope.
• Even a cheap PP510 probe (100 MHz rated) has a +/-3 dB bandwidth of more than 500 MHz according to the industry standard test using a 25 ohm source
  

[tautech]

NEW PROMOTION

All models purchased from May 1 until October 31 2023.
FREE BW upgrade to next model:
SDS2104X Plus > SDS2204X Plus, SDS2204X Plus > SDS2354X Plus, SDS2354X Plus > SDS2504X Plus

Enquire at your dealer.

No mention of that on TEquipment product pages:
https://www.tequipment.net/Siglent/SDS2104X-Plus/Digital-Oscilloscopes/

Or must we email them to ask for that free BW upgrade?  Or is it a limited promotion to select dealers?

Yeah sorry the promo was hot off the press which was much better than spotting it days later on Siglent websites which previously had been the case. Maybe they listened last time I grumbled as in previous promos we had sold instruments only to then need to contact customers after the fact to offer the free options their purchase qualified for.

As it happens I got the promo announcement just before HQ went for CN Labor day hols of which I believe they will return from 4th May however it's not like the promo is for just a few days but until the end of October.

I imagine all worldwide distributors will be messaged this coming week so we should see details start appearing on websites then.

[JDW]

It is amazing how the misinformation about probes keeps floating around, spread by folks who quite obviously never measured the system performance of any scope/probe combination.

PASSIVE probes don't merely stop at 500MHz, and for good reason.  They also come in 700MHz variants...
https://www.tequipment.net/Rohde-&-Schwarz/RT-ZP11/Standard-/-Passive-Oscilloscope-Probes/
https://youtu.be/txPxo4TA0i4?t=406

And even 1GHz variants...
https://download.tek.com/datasheet/TPP1000-TPP0500B-TPP0502-TPP0250-Passive-Voltage-Probe-Datasheet-51W261519.pdf
https://youtu.be/1xicZF9glH0?t=195

So when you say, "A passive high-Z probe isn't terribly useful for practical work at frequencies above 100 MHz, no matter what the bandwidth rating is", that statement seems to knock Dave for using his "not terribly useful" TEK 1GHz PASSIVE probes. 

Taking your words deeper, it seems you are basically saying this: "Stop worrying about the probe MHz rating because they are passive probes and therefore are not terribly useful for practical work at frequencies above 100MHz. Be they 100MHz, 200MHz, 350MHz, 500MHz, 700MHz, or 1GHz passive probes, those differences don't matter -- they aren't so useful above 100MHz."

Seriously?