Siglent SDS2000X Plus

[tautech]

I wonder if LeCroy are doing the QA for Siglent? I’ve been surprised how relatively mature the firmware is.

As the feature set and UI is already present in the SDS5000X which was released more than a year earlier we benefit from that. 

This is evident in the X-E range also where rollouts of improvements get applied to the whole range albeit that they have a different UI and feature set.

[wxqhigh]

Something different hah?  I bought it a week before.

[tautech]

Something different hah?  I bought it a week before.

Yep, a different FW version than any of us !
Current public version is V1.3.5R10

[wxqhigh]

Something different hah?  I bought it a week before.

Yep, a different FW version than any of us !
Current public version is V1.3.5R10

And the new Options and HW version

[tautech]

Something different hah?  I bought it a week before.

Yep, a different FW version than any of us !
Current public version is V1.3.5R10

And the new Options and HW version

Yep, the HW version is often changed with FW and the new decodes were also recently added to the SDS5000X. 

[Martin72]

Ohh..the next firmware seems to become a nice one....

[famalex]

Hi!
I want to ask experienced friends for help.
There is no doubt that SDS204X+ is pretty good instrument (after full upgrading, of course ), but the P215 probs that comes with that are unacceptable. I found on Ebay a pair of LeCroy PP007-WR: https://www.ebay.com/itm/Teledyne-LeCroy-PP007-WR-Passive-Probe-w-Operators-Manual-Lot-of-2-NEW/124036030495?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D225074%26meid%3Dbc6c396de6874bcba8338ab7eb8e2d6c%26pid%3D100290%26rk%3D2%26rkt%3D4%26sd%3D383785701582%26itm%3D124036030495%26pmt%3D0%26noa%3D1%26pg%3D2060778%26brand%3DLeCroy&_trksid=p2060778.c100290.m3507
Does anyone know how good are these probes? Do they fit my scope and are they worth the money?

[Martin72]

Hi,

There is no doubt that SDS204X+ is pretty good instrument (after full upgrading, of course )

Even when it´s not fully upgraded..

Yeah, the probe thing is the only really worse in this case, never understandable...

I´m looking for lecroy probes too - At work, we got lecroy scopes only ( except the siglent/rigol ones in the R&D Lab) and so I´m used to work with their probes.
I think, with the PP007 you´ll won´t go wrong although there are rumours that some lecroy probe types causes an not adjustable mismatch (still little overshoots).
The seller in your link provide a 30days money back guarantee - Test them and use it if they couldn´t been matched "perfect"..

[famalex]

Thank you,  Martin 
Yes, a 30 days money back guarantee is very good option. But the need to pay customs fees and return shipping in case these probes don't fit, does not make me happy. Therefore, I am still undecided.

[Martin72]

Believe that.
And since I´ve "upgraded" mine to 500Mhz, I´m also looking for suitable probes on e.g. Ebay.
There are some cheap and new probes avaible, but chances are high they won´t fit it in general.
So I´m looking for probes from "real" brands too.
But won´t spend 400 or more bucks for 4pcs.
Therefore I got a look at used probes with "real names", like from tek or lecroy.
Caused to our bought of two new lecroys last year, we got four probes PP021 and four probes PP022.
I could take one of them at home and check, if I could match them perfectly on my SDS2504X+

[tautech]

Hi!
I want to ask experienced friends for help.
There is no doubt that SDS204X+ is pretty good instrument (after full upgrading, of course ), but the P215 probs that comes with that are unacceptable. I found on Ebay a pair of LeCroy PP007-WR: https://www.ebay.com/itm/Teledyne-LeCroy-PP007-WR-Passive-Probe-w-Operators-Manual-Lot-of-2-NEW/124036030495?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D225074%26meid%3Dbc6c396de6874bcba8338ab7eb8e2d6c%26pid%3D100290%26rk%3D2%26rkt%3D4%26sd%3D383785701582%26itm%3D124036030495%26pmt%3D0%26noa%3D1%26pg%3D2060778%26brand%3DLeCroy&_trksid=p2060778.c100290.m3507
Does anyone know how good are these probes? Do they fit my scope and are they worth the money?

$225 for 2 probes ? 

https://siglentna.com/product/sp2030a-auto-sense-300-mhz-oscilloscope-probes/
While these are not the probes that come with a SDS2354X Plus, 300 MHz rating, 10x, and auto sense for $59 seems a better deal to me. These were std probes for a SDS2304X.

[Martin72]

$225 for 2 probes ?

Really cheap - Search for ONE probe PP021 or PP022...

[famalex]

Believe that.
And since I´ve "upgraded" mine to 500Mhz, I´m also looking for suitable probes on e.g. Ebay.
There are some cheap and new probes avaible, but chances are high they won´t fit it in general.
So I´m looking for probes from "real" brands too.
But won´t spend 400 or more bucks for 4pcs.
Therefore I got a look at used probes with "real names", like from tek or lecroy.
Caused to our bought of two new lecroys last year, we got four probes PP021 and four probes PP022.
I could take one of them at home and check, if I could match them perfectly on my SDS2504X+

This would be a great solution .

[famalex]

500 MHz and even the famous brand - LeCroy! 

[Martin72]

Famous...I don´t trust anyone on this today..
Current-Probes from lecroy, siglent, R&S, Rigol, Keysight are made from the same (Hioki, Pintek).
So the "normal" probes are surely not origin made from lecroy, they´re something else..
But hey, if they do what they should do according to their specs....

[famalex]

Hi!
I want to ask experienced friends for help.
There is no doubt that SDS204X+ is pretty good instrument (after full upgrading, of course ), but the P215 probs that comes with that are unacceptable. I found on Ebay a pair of LeCroy PP007-WR: https://www.ebay.com/itm/Teledyne-LeCroy-PP007-WR-Passive-Probe-w-Operators-Manual-Lot-of-2-NEW/124036030495?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D225074%26meid%3Dbc6c396de6874bcba8338ab7eb8e2d6c%26pid%3D100290%26rk%3D2%26rkt%3D4%26sd%3D383785701582%26itm%3D124036030495%26pmt%3D0%26noa%3D1%26pg%3D2060778%26brand%3DLeCroy&_trksid=p2060778.c100290.m3507
Does anyone know how good are these probes? Do they fit my scope and are they worth the money?

$225 for 2 probes ? 

https://siglentna.com/product/sp2030a-auto-sense-300-mhz-oscilloscope-probes/
While these are not the probes that come with a SDS2354X Plus, 300 MHz rating, 10x, and auto sense for $59 seems a better deal to me. These were std probes for a SDS2304X.

Unfortunately not $225, but with all custom charges it will costs me more than $300.
You right.

[Elasia]

I use probemasters, you wont get 500 in multi channel mode anyway.. that said i do have one 5900 as well for single channel

https://probemaster.com/design-your-own-4900-series-master-probe-kit/

https://probemaster.com/5900-series-500-mhz-oscilloscope-probe-10x/

[wxqhigh]

It seems a FFT bug here，why it has a spike on 500mhz？

[thinkfat]

Well that's certainly an interesting effect. Do you see it as well if you don't GND the input but leave it floating DC coupled? How does it respond to different vertical gains on the channel?

[rf-loop]

It seems a FFT bug here，why it has a spike on 500mhz？

Not bug. Internal 500MHz  leaks to signal image bit. With 2Gsa/s ADC there still is  500MHz clock signal. 1GHz clock dual edge give 2GSa/s but 1GHz clock is also divided by 2 for 4  data output bus from chip (there is 4x 500MHz bus  out from ADC)

Yes it can think it is just one "spur".  Take what ever spectrum analyzer and also there you can find big amount of many kind of "spurs".

Look this level. -101dBV  !
If we have this level in 50 ohm system it is -88dBm.
It responds roughly 25.2uVpeak-peak, 8.9 uVrms.  So in practice it is nearly nonsense. But also they are 10dB over base noise level... Imho,  user need only know there is 500 and 1000MHz spurs and thats it. Not "bug" but hardware is not ideal... ideal hardwares exist only school books. Of course it is nicew if Siglent develop HW better and better but somewhere also can then hit nose to wall where read "stop here and open your pocket or turn back" and question... do it rise sales of this instrument.

But then,  how they are if you rise V/div.
Do they follow when base noise level rise or do they disappear. Both cases are bit different story... I do not have this in hand so I can not test, only speculate.

[thinkfat]

Hi!
I want to ask experienced friends for help.
There is no doubt that SDS204X+ is pretty good instrument (after full upgrading, of course ), but the P215 probs that comes with that are unacceptable. I found on Ebay a pair of LeCroy PP007-WR: https://www.ebay.com/itm/Teledyne-LeCroy-PP007-WR-Passive-Probe-w-Operators-Manual-Lot-of-2-NEW/124036030495?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D225074%26meid%3Dbc6c396de6874bcba8338ab7eb8e2d6c%26pid%3D100290%26rk%3D2%26rkt%3D4%26sd%3D383785701582%26itm%3D124036030495%26pmt%3D0%26noa%3D1%26pg%3D2060778%26brand%3DLeCroy&_trksid=p2060778.c100290.m3507
Does anyone know how good are these probes? Do they fit my scope and are they worth the money?

$225 for 2 probes ? 

https://siglentna.com/product/sp2030a-auto-sense-300-mhz-oscilloscope-probes/
While these are not the probes that come with a SDS2354X Plus, 300 MHz rating, 10x, and auto sense for $59 seems a better deal to me. These were std probes for a SDS2304X.

Unfortunately not $225, but with all custom charges it will costs me more than $300.
You right.

I think I'm going for the R&S RT-ZP05 set. Two 500MHz probes 10:1 for around €250 new, with auto sensing and I can get them from basically every major distributor around here.

[wxqhigh]

It seems a FFT bug here，why it has a spike on 500mhz？

Not bug. Internal 500MHz  leaks to signal image bit. With 2Gsa/s ADC there still is  500MHz clock signal. 1GHz clock dual edge give 2GSa/s but 1GHz clock is also divided by 2 for 4  data output bus from chip (there is 4x 500MHz bus  out from ADC)

Yes it can think it is just one "spur".  Take what ever spectrum analyzer and also there you can find big amount of many kind of "spurs".

Look this level. -101dBV  !
If we have this level in 50 ohm system it is -88dBm.
It responds roughly 25.2uVpeak-peak, 8.9 uVrms.  So in practice it is nearly nonsense. But also they are 10dB over base noise level... Imho,  user need only know there is 500 and 1000MHz spurs and thats it. Not "bug" but hardware is not ideal... ideal hardwares exist only school books. Of course it is nicew if Siglent develop HW better and better but somewhere also can then hit nose to wall where read "stop here and open your pocket or turn back" and question... do it rise sales of this instrument.

But then,  how they are if you rise V/div.
Do they follow when base noise level rise or do they disappear. Both cases are bit different story... I do not have this in hand so I can not test, only speculate.

I see，actually it’s not a bug but a normal phenomenon that caused by clock leaking.

It's also the same situation in DC coupling.  @thinkfat

[2N3055]

Hi!
I want to ask experienced friends for help.
There is no doubt that SDS204X+ is pretty good instrument (after full upgrading, of course ), but the P215 probs that comes with that are unacceptable. I found on Ebay a pair of LeCroy PP007-WR: https://www.ebay.com/itm/Teledyne-LeCroy-PP007-WR-Passive-Probe-w-Operators-Manual-Lot-of-2-NEW/124036030495?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D225074%26meid%3Dbc6c396de6874bcba8338ab7eb8e2d6c%26pid%3D100290%26rk%3D2%26rkt%3D4%26sd%3D383785701582%26itm%3D124036030495%26pmt%3D0%26noa%3D1%26pg%3D2060778%26brand%3DLeCroy&_trksid=p2060778.c100290.m3507
Does anyone know how good are these probes? Do they fit my scope and are they worth the money?

$225 for 2 probes ? 

https://siglentna.com/product/sp2030a-auto-sense-300-mhz-oscilloscope-probes/
While these are not the probes that come with a SDS2354X Plus, 300 MHz rating, 10x, and auto sense for $59 seems a better deal to me. These were std probes for a SDS2304X.

Unfortunately not $225, but with all custom charges it will costs me more than $300.
You right.

I think I'm going for the R&S RT-ZP05 set. Two 500MHz probes 10:1 for around €250 new, with auto sensing and I can get them from basically every major distributor around here.

You do whatever you want.

But my experience is: standard 10x probes over 250MHz will all be pretty much the same..
Don't look at bandwidth, look at capacitance at tip. Circuit loading will define what you will see in real life.
You will literally have same waveform on the screen with that expensive probe that you would with decent inexpensive one. Don't buy cheapest crap, obviously, but don't buy the sales pitch.
If you really want better probe response, keep probes that you got with scope for general poking around and start saving for cheapest active probe.. That will make a difference.

Also, don't buy expensive passive probes that don't have replaceable tip ( those you chose I believe do have it )... You will damage tip, sooner or later, mechanically or electrically.

My 0.02 €..

[rf-loop]

But my experience is: standard 10x probes over 250MHz will all be pretty much the same..
Don't look at bandwidth, look at capacitance at tip. Circuit loading will define what you will see in real life.

Yes.
Example 7pF with 300MHz equals roughly 75 ohm and with 500MHz roughly 45 ohm.

It need always remember that Lo-Z probe, piece of coaxial and resistor in many times far better than usual probe with high frequencies. Usually high freq circuits are low impedance circuits so this 1Mohm is nonsense due to tip capacitance.
Inside this article there is 1kohm probe... good to 1GHz and even up several GHz
it is not 1:10 but 1:21. It need connect to 50ohm input.
http://www.sigcon.com/Pubs/straight/probes.htm

well it first feel that 1kohm... blah... but this is for HF circuits.

We can think other way. Take some probe, example tip 7pF. What is frequency where its cap.impedance corresponds 1kohm. Roughly 22MHz.  So with 22MHz or higher this 1kohm probe is loading RF circuit less and also it is more like resistive. Very usable and over 100MHz or exaple with 300MHz it beats normal probe hands down in many things. Is it difficult because it is 21x probe. Of course not. Just turn your scope probe factor to 21x or even more accurate just using some reference signal and probe factor fine adjust. And  its price is... piece of RG174 and resistor and example small short pogo pins if want. "It must be poor because it is cheap"... forget this thinking.  For  what need fancy expensive 500MHz passive probe. For lower freq it is not at all needed, better use probe what is also low pass filter.  For high frequencies cheap but ugly looking DIY Lo-Z may beat expensive probe hands down. And if bad happen... just laugh and make new. No need be sad when 100 Euro or 500 Euro was gone.
Of course these nice expensive probes are good for many things and in some cases better than diy LoZ. But is it wise first carefully think reality with probes and higher RF before open money book... buy roses to your wife and do 50 cent DIY Lo-Z or collect its material from recycling basket.

[thinkfat]

You do whatever you want.

Yep. I found a new pair for 145€ plus shipping. Not a bad deal if they are genuine.