Siglent's new product- MSO/SDS2000 Series

[tautech]

They sent me this as well.

[echen1024]

Well, they probably are unwilling to ship to the US since the shipping costs are so high. I shall pick one up next time i visit china which should be in a few months.

[Farrari]

Hi Farrari!
I don't understand what do you want mean. Please could you be a little more graphic?
Do you have connected a probe? Apparently so. And how?
Do you have near FM stations? Because this signal appears to be around 100MHz.

See the penultimate post here:
http://www.home.agilent.com/owc_discussions/thread.jspa?threadID=17537&start=15&tstart=0


I don't mean by this that this noise is not coming from the oscilloscope, despite being shielded. I prefer to think that this "noise" comes from the outside.

what I expect to measure is such a  ripple power supply module, and it's output is about DC 6Vpp.



1M ohm impedance


50 ohm impedance

[tautech]

Just shows everyone how only a 50 Ohm load can dissipate the spurious waveform content.
A mean ripple of 0.13 mV is quite low.
What is the ripple with a "working" load? (50 Ohm & 1M inputs)

[Hydrawerk]

Okay, this Siglent scope seems to be better than GW Instek GDS-2000A.

[Carrington]

what I expect to measure is such a  ripple power supply module, and it's output is about DC 6Vpp.

Ok, and where is the problem?

[tautech]

Okay, this Siglent scope seems to be better than GW Instek GDS-2000A.

Do you make this statement on Specs or what you have seen here?

[echen1024]

I am trying to get hold of a unit for a review. I have 2 scopes at a similar price point for comparison. Who should I ask in Siglent?

[marmad]

I am trying to get hold of a unit for a review. I have 2 scopes at a similar price point for comparison. Who should I ask in Siglent?

Well, heck, if any of the Siglent guys in this thread (Herman, Tautech, Farari, etc) know who to ask for a unit for review - and if Siglent is interested in getting reviewed, I'd like to know myself. I'd love the chance to review one - and I've actually posted 3 online reviews of different DSOs: the Rigol DS2000 series, the Hantek DSO5000B series, and the Owon SDS7102.

[echen1024]

Yea, I have been offered a DS2000 and a GW-Instek 2000A series for review. (Loaner units). I hope to get a Siglent to review. I have asked the person at Siglent responsible for multimedia already.

[marmad]

Yea, I have been offered a DS2000 and a GW-Instek 2000A series for review. (Loaner units). I hope to get a Siglent to review. I have asked the person at Siglent responsible for multimedia already.

But you might start by reviewing the DSO that you bought, no?

[echen1024]

I have. The DS1074Z you mean? I plan on finishing that up with a serial decode, which I may upload today if I'm happy, and also, a teardown of my Agilent E3610A.

[Carrington]

With all due respect. Marmad is an ideal candidate, so IMHO Siglent should take good account. Marmad, you have my vote. 

[marmad]

I have. The DS1074Z you mean? I plan on finishing that up with a serial decode, which I may upload today if I'm happy, and also, a teardown of my Agilent E3610A.

Yeah, no one has done anything in-depth on the DS1074Z - everything posted has been very simple - and covering the same ground. I haven't seen any real tests of it's capabilities - I don't think anyone has even posted video of all 4 channels running with different signals 

[echen1024]

Noted. Any things you want to see in the video? I plan to cover the serial decode/triggering, the various advanced triggers, and a look at the intensity grading with a multi layered signal. ANy others you want to see?

[tautech]

I am trying to get hold of a unit for a review. I have 2 scopes at a similar price point for comparison. Who should I ask in Siglent?

Well, heck, if any of the Siglent guys in this thread (Herman, Tautech, Farari, etc) know who to ask for a unit for review - and if Siglent is interested in getting reviewed, I'd like to know myself. I'd love the chance to review one - and I've actually posted 3 online reviews of different DSOs: the Rigol DS2000 series, the Hantek DSO5000B series, and the Owon SDS7102.

Dave has been offered a Siglent to review,

Word is I'll be getting a 2000 series Siglent soon...

but at this stage all units are Pre-Release units still with a few minor bugs and with ongoing Siglent support and regular updates.

We may have to wait a while until Siglent is happy with their new range before they are willing to submit one for an in-depth review/teardown.

 Others have had theirs for a little while (going by this threads content) but mine was only dispatched on 20 Dec.
I had to buy mine and pay for shipping (FYI).
Public release is still a month or so away. 

My SDS2304 is magic, alas i have come across a couple of minor bugs thus far, that I will bring to their attention. As I have posted mine has Serial decoding & AWG (Options). I hope to do some Serial decoding testing in the next week or two.

I do not have the equipment to do any in-depth testing to the capabilities of the scope. 
I will however try to answer any queries about the GUI and UI that may arise.

Tautech

[BravoV]

With all due respect. Marmad is an ideal candidate, so IMHO Siglent should take good account. Marmad, you have my vote. 

+1  Another vote of confidence.

[rf-loop]

 Others have had theirs for a little while (going by this threads content) but mine was only dispatched on 20 Dec.

My unit depart factory 02. December.
It have software version: 1.1.1.22.5.
FPGA versions: 13.11.16-13.11.15-13.10.28
Hardware version: 3-3

It have so much unfinished things/features in GUI/UI that perhaps if we look today its "features" they are soon obsolete and just give wrong imagine to potential customers.

But what I have inspected, HW feels and looks good.

Soon I will show some internal......

[marmad]

It have so much unfinished things/features in GUI/UI that perhaps if we look today its "features" they are soon obsolete and just give wrong imagine to potential customers.

I thought the model had already been on sale for awhile in China - is that incorrect?

[marmad]

Dave has been offered a Siglent to review,

Well, as long as you get one review 

I will however try to answer any queries about the GUI and UI that may arise.

Does the DSO have user-selectable memory depths - or does it automatically select memory size all of the time?
If the DSO does have user-selectable memory depths, what are the sizes?
If the DSO does have user-selectable memory depths, could you take 5 minutes and measure the waveform update rates with each of the user-selectable memory depths at 1ms/div?

For example (using the DS2000):

        14kPts  140kPts  1.4MPts  14MPts  56MPts  Memory Depth
1ms/div     70       56       52      29      15  wfrm/s


How exactly does the DSO capture and display segments?

[rf-loop]

Dave has been offered a Siglent to review,

Well, as long as you get one review 

I will however try to answer any queries about the GUI and UI that may arise.

Does the DSO have user-selectable memory depths - or does it automatically select memory size all of the time?
If the DSO does have user-selectable memory depths, what are the sizes?
If the DSO does have user-selectable memory depths, could you take 5 minutes and measure the waveform update rates with each of the user-selectable memory depths at 1ms/div?

For example (using the DS2000):

        14kPts  140kPts  1.4MPts  14MPts  56MPts  Memory Depth
1ms/div     70       56       52      29      15  wfrm/s


How exactly does the DSO capture and display segments?

100kHz input CH1. Trig out to HP53131A
CH1 on
Dots, sin(x)/x off, trigger normal, holdoff off
1ms/div

Memory       7k, 14k,  70k, 140k, 700k, 1,4M, 7M,    28M (setting 14M)
samplerate  500k, 1M, 5M, 10M,   50M, 100M, 500M, 2G
Trig out with all these around 67.5 to 67.9 / second
Display 14 div, whole capture allways 14div (not capturing out of screen)
(If stop and zoom in, always get full resolution related to sampling speed and memory lenght - of course)

[tautech]

Does the DSO have user-selectable memory depths - or does it automatically select memory size all of the time?
If the DSO does have user-selectable memory depths, what are the sizes?
If the DSO does have user-selectable memory depths, could you take 5 minutes and measure the waveform update rates with each of the user-selectable memory depths at 1ms/div?

rfloop has beaten me to it but will post my results anyway. 
 Another DSO frequency counter used for refresh rate measurement.
Calibration 1KHz squarewave input
My unit is the same build and firmware as rfloop

Memory depth has 8 fully user definable settings:

With all channels on:
Acquire settings: Mem Depth: Default 14M. Select by button toggle or multi-function knob.
14M         7M         1.4M          700K        140K         70K        14K        7K

Waveform refresh rate @ 1mS/div is 66.5 @ all Memory depth settings.

I agree with rfloop

It have so much unfinished things/features in GUI/UI that perhaps if we look today its "features" they are soon obsolete and just give wrong imagine to potential customers.

  we probably have a ever-shifting updates scenario and some in-depth test results may change hopefully for the better.

[marmad]

100kHz input CH1. Trig out to HP53131A
CH1 on
Dots, sin(x)/x off, trigger normal, holdoff off
1ms/div

Memory       7k, 14k,  70k, 140k, 700k, 1,4M, 7M,    28M (setting 14M)
samplerate  500k, 1M, 5M, 10M,   50M, 100M, 500M, 2G
Trig out with all these around 67.5 to 67.9 / second
Display 14 div, whole capture allways 14div (not capturing out of screen)
(If stop and zoom in, always get full resolution related to sampling speed and memory lenght - of course)

Thanks, rf-loop.

Very interesting... but I don't understand how they're keeping the waveform update rate constant. Is it possible to decimate/post-process, for example, 945kB (14k * 67.5) and 1.8GB (28M * 67.5) at the same speed?

What happens if you perform an experiment such as the following?

I sent my DS2000 a series of 50ns pulses spaced 100us apart, in Normal acquire mode (not Peak Detect - which would obviously void the experiment), and saved an image while running using 14M sample depth - and then 14k. You can see the differing results when decimating from a larger or smaller sample size.

[marmad]

Try as I might with the inbuilt 25MHz AWG running at max pulse rate & min pulse width I could not replicate anything like your Rigol.
All waveforms captured showed pulses for full width of screen.

  Running from Siglent SDG1010 AWG
Will retest.

Well, something's odd. As mentioned, if the Siglent can do ~67 wfrm/s when it's capturing and processing over 1.8GB of samples per second (28M sample depth), why can't it go faster when it's capturing and processing only 0.00025% of that amount (7k sample depth)?

[tautech]

Now with inbuilt AWG running at 5 MHz and 52 nS pulses.
Note the Current sample (at this faster timebase setting) in top right corner now showing 28 Kpts where previously 14 Kpts. Acquisition memory depth still set @ 14 K.

Well, something's odd. As mentioned, if the Siglent can do ~67 wfrm/s when it's capturing and processing over 1.8GB of samples (28M sample depth), why can't it go faster when it's capturing and processing only 0.00025% of that amount (7k sample depth)?

I have not seen 28 M shown on screen so i wonder how the memory depth is allocated.

With all channels on:
Acquire settings: Mem Depth: Default 14M. Select by button toggle or multi-function knob.
14M         7M         1.4M          700K        140K         70K        14K        7K

It is a good question for the better equipped than I.