Author Topic: SIGLENT SDS1102CML - First Impressions  (Read 100910 times)

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Offline Wuerstchenhund

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Re: SIGLENT SDS1102CML - First Impressions
« Reply #25 on: May 16, 2013, 07:14:02 pm »
I think and also believe that Siglent also listen customers.  I have seen some changes what are clearly collected from customers opinions.

I was thinking of collecting bug reports and improvement suggestions, put it in a document and send this to them. I really like this little scope and it would be a real shame if the software side would let it down.

Do you have any contact email for Siglent that is actually active and which could be used for this?
 

Offline Wuerstchenhund

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Re: SIGLENT SDS1102CML - First Impressions
« Reply #26 on: May 16, 2013, 07:18:51 pm »
many times I have told that manufacturer NEED arrange useability test group who look also things in some time points when design is going forward

What manufacturers should do is to involve a Human Factors/UI specialist in the design phase. Unfortunately most good software developers are just awful UI designers (and most mediocre programmers are simply shit at UI design, just look at the mass of very poor websites).
 

Offline rf-loop

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Re: SIGLENT SDS1102CML - First Impressions
« Reply #27 on: May 16, 2013, 07:29:47 pm »
I think and also believe that Siglent also listen customers.  I have seen some changes what are clearly collected from customers opinions.

I was thinking of collecting bug reports and improvement suggestions, put it in a document and send this to them. I really like this little scope and it would be a real shame if the software side would let it down.

Do you have any contact email for Siglent that is actually active and which could be used for this?

Yes I have.

But I will ask also if they have better contact just directly for this Oscilloscope specials.
(last time I have talked about SDG's some things and I do not know exactly if they have separate team for oscilloscope things. But least also my direct contacts can forward these to right persons inside Siglent)  I will PM it after I know.

Also I have some kind of "wish" list + bug list.... but it is not at all ready yet due to lack of time.

I drive a LEC (low el. consumption) BEV car. Smoke exhaust pipes - go to museum. In Finland quite all electric power is made using nuclear, wind, solar and water.

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Offline rf-loop

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Re: SIGLENT SDS1102CML - First Impressions
« Reply #28 on: May 16, 2013, 07:38:30 pm »

What manufacturers should do is to involve a Human Factors/UI specialist in the design phase. Unfortunately most good software developers are just awful UI designers (and most mediocre programmers are simply shit at UI design, just look at the mass of very poor websites).

I confirm this.

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« Last Edit: May 16, 2013, 07:40:01 pm by rf-loop »
I drive a LEC (low el. consumption) BEV car. Smoke exhaust pipes - go to museum. In Finland quite all electric power is made using nuclear, wind, solar and water.

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Offline hggTopic starter

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Re: SIGLENT SDS1102CML - First Impressions
« Reply #29 on: May 17, 2013, 12:50:28 pm »
I have found the source of the 50hz noise.
The oscilloscope was plugged on a mains power meter. 
I don't know how, but that meter was causing the 50hz noise...

Perfect flat line now down to millivolts!   :-+
 

Offline Fay

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Re: SIGLENT SDS1102CML - First Impressions
« Reply #30 on: May 29, 2013, 09:08:20 am »
Nice review and great pictures! Saves me doing one for my Siglent SDS1102CNL (which is the same the CML minus the large 2M memory).

Quote
The probes feel a little cheap and fragile

Yes, the probes are really very cheap and flimsy, and probably won't survive long. I guess for all the money they put into the scope to make it good for that price they probably had to cut corners somewhere. But good standard probes (ie Testec) aren't that expensive so I don't think this is a major issue.

Aside from the problems you already mentioned, I also found some idiocracy in their logic for the RUN/STOP and SINGLE button. If you press RUN/STOP the scope stops its acquisition cycle as expected. But if you press RUN/STOP again it only does a single sweep. You have to actually press SINGLE to get the scope going again.

Maybe we should collect all the issues and then pester Siglent together for them to fix the problems.

Great idea!
 

Offline bluey

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Re: SIGLENT SDS1102CML - First Impressions
« Reply #31 on: June 04, 2013, 09:34:24 am »
Thanks for posting on this scope. Looking at getting my first.

Haven't found a teardown, but this video  review seems like a manufacturer sponsored teardown.


Compared to Rigol DS1052E http://www.eevblog.com/2009/10/12/eevblog-37-rigol-ds1052e-oscilloscope-teardown/ which seems well regarded around here, the Siglent looks to have near identical main board with same component manufacturers - at least the few that a are visible and very similar power supply. The  Siglent has white ?silicone around the power supply components, which the Rigol does not. Siglent also has a cable tie on the left rear of the case securing the ribbon cable from main board to the power supply. Perhaps this helps with calibration stability? These two details are also present on photos of LeCroy scope I saw.

Siglent has downloadable service manual, which Rigol does not that I can find.

The only indications I have seen of cheap/nastiness so far are wrong brand logotype on the LCD screen and comments on cheap probes.

I guess there might be cooperation or intellectual property sharing or generic board design/manufacturing sponsored by the chipmakers to help lower the costs of the low-end machines. Perhaps it's a government sponsored strategy to gain market domination??? Amazing that all these DSO companies have risen from nothing in the late 1990s. While they have a steep learning curve, being OEMs for major old-world companies gives them signficant access to knowledge which they will be able to use in pursuit of market domination.
 

Offline bluey

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Re: SIGLENT SDS1102CML - First Impressions
« Reply #32 on: June 25, 2013, 01:22:00 am »
Have just got my SDS1102CML build 2013-05-18. Same firmware and hardware as first post. Still learning to use it.

Bugs so far:
English instruction manual is underbaked - poor quality english in parts and a bit confusing in parts.
No packing list to check.
Probe instructions aren't clear that the adjusting screwdriver is included.
Instructions don't describe software or installation.

Note that the EasyScopeX on the included CD does not have NI-VISA drivers which are needed for it to work. Finding out this required a web search. http://siglent.freeforums.org/siglent-easyscopex-pc-software-for-oscilloscopes-t44.html Rigol Ultrascope download includes NI-VISA runtime 3.4MB. Siglent requires a download of NI-VISA from National Instruments. http://www.ni.com/visa/  Site navigation is poor - clicking Downloads brings up a huge list. I went for the first one which is a full version 700MB. Probably could have used the runtime version 7MB - separate downloads for Windows and Linux but you  have to open the page to see which one you have got. Present NI-VISA is 5.3.

I had previously downloaded Tektronics OpenChoice software to play with. At about 500MB, guessing it also comes with a full version of NI-VISA rather than the runtime.


 

Offline David Aurora

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Re: SIGLENT SDS1102CML - First Impressions
« Reply #33 on: June 25, 2013, 03:31:52 am »
Got the same scope yesterday. Not really sure how I feel about it yet to be honest. Here's my first impressions as they spring to mind.

- This thing just feels painfully slow. To use an analogy that'll probably start a flame war, it's like using Windows when you're used to Macs. I'm used to turning on the CRO, plugging something in and looking at it. It's that simple. Unplug and you see the spike. Add a load and see the effect instantly. And so on. Whereas on this thing you can pretty much go get a cup of coffee or learn to yodel waiting to see the screen update. Ok, maybe that's a tad dramatic. But it's slow enough to really put you off, as a new user there's that split second of doubt on every measurement where you start wondering if you actually connected the damn circuit or if you're in the wrong mode or something. But from what I've seen that's somewhat normal to a degree with DSO's so maybe I'm expecting too much.

- Yep, the manual is atrocious. There's some truly classic Chinglish in there though and I'm a huge fan of that artform. I've just been exploring the menus and working things out for myself, and if you know how to use a scope already it doesn't seem like rocket science to find things. I've probably played around with the thing for an hour total between last night and today and I feel like I know where everything is now within submenus and how to adjust things.

- I don't like how the Auto function turns on both channels automatically. Maybe I'm missing a workaround, but the only way I've found to avoid it is to physically disconnect the second probe. If I've got channel 2 turned off and hit auto, in my brain it means I want channel 1 up and running, not a split screen of my signal and low level noise from an unused probe.

- Did I mention how painfully slow it is?

- Menu gets stuck a lot. It'll be halfway between sliding on screen or off and just stop there until you press a button to remind it where it's supposed to be.

- Buttons and knobs feel fine, no probs there.

- It isn't obscenely loud, no worse than other stuff on my bench.


More to come when I do some actual work on it later today, I'm sure...
 

Offline Siglent

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Re: SIGLENT SDS1102CML - First Impressions
« Reply #34 on: June 25, 2013, 07:54:54 am »
Have just got my SDS1102CML build 2013-05-18. Same firmware and hardware as first post. Still learning to use it.

Bugs so far:
English instruction manual is underbaked - poor quality english in parts and a bit confusing in parts.
No packing list to check.
Probe instructions aren't clear that the adjusting screwdriver is included.
Instructions don't describe software or installation.

Note that the EasyScopeX on the included CD does not have NI-VISA drivers which are needed for it to work. Finding out this required a web search. http://siglent.freeforums.org/siglent-easyscopex-pc-software-for-oscilloscopes-t44.html Rigol Ultrascope download includes NI-VISA runtime 3.4MB. Siglent requires a download of NI-VISA from National Instruments. http://www.ni.com/visa/  Site navigation is poor - clicking Downloads brings up a huge list. I went for the first one which is a full version 700MB. Probably could have used the runtime version 7MB - separate downloads for Windows and Linux but you  have to open the page to see which one you have got. Present NI-VISA is 5.3.

I had previously downloaded Tektronics OpenChoice software to play with. At about 500MB, guessing it also comes with a full version of NI-VISA rather than the runtime.

 EasyScopeX

The following is EasyScopeX Installation Instructions: (you could look the file "EasyScopeXEN.chm")
System Requirements

1. NET framework 3.5 SP1

The application you are installing requires the Microsoft .NET framework version 3.5 to run. You can download the Microsoft .NET Framework 3.5 SP1 package directly from Microsoft. This is a small 3 MB download with just the .NET framework installer. When you run it, the installer downloads the actual framework components that need to be installed on your computer. Once you've installed the .NET framework, you can continue installing the application.

If you plan to install version 3.5 of the .NET framework on a large number of computers, you can also download the full package of the Microsoft .NET Framework 3.5 SP1. This 231 MB download comes directly from Microsoft. The small 3 MB installer likely needs to download much less than this, depending on what is already present on your computer.

2. Ni-Visa

The application you are installing requires the NI-VISA to run. You can download the NI-VISA package directly from http://www.ni.com/visa. at the bottom of the web, you will see the “Also see”, then click the “Downloads” option, you will get what you want. Once you've installed the NI-VISA, you can continue installing the application.

3. Window XP(32 bits) or Windows Vista(32 bits/64 bits) or Windows 7(32 bits/64 bits)

4. Net Framework was installed on the machine when installing Windows 7(64 bits) or Windows Vista(64 bits), follow next steps to use it:
       a. Open control panel, select Uninstall Program.
       b. Select Open or Close Windows Functions in the new window.
       c. Check Microsoft .Net Framework in the Windows Functions Dialog box? click OK button.

NI-VISA

The drive of EasyScopex is used a commom driver- the NI-VISA driver. (If using special driver, we can  pack it into a CD drive, but in fact it is not advisable to )

Rigol using "NIVISARuntime.msi" driver

we are  verifing the driver, if  it is passed, the new  installation instructions and driver will be updated

Probe

The probe instructions is put into the package bag?which including usage instructions.
« Last Edit: June 25, 2013, 02:07:10 pm by Siglent »
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Offline Siglent

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Re: SIGLENT SDS1102CML - First Impressions
« Reply #35 on: June 26, 2013, 01:34:41 am »

Note that the EasyScopeX on the included CD does not have NI-VISA drivers which are needed for it to work. Finding out this required a web search. http://siglent.freeforums.org/siglent-easyscopex-pc-software-for-oscilloscopes-t44.html Rigol Ultrascope download includes NI-VISA runtime 3.4MB. Siglent requires a download of NI-VISA from National Instruments. http://www.ni.com/visa/  Site navigation is poor - clicking Downloads brings up a huge list. I went for the first one which is a full version 700MB. Probably could have used the runtime version 7MB - separate downloads for Windows and Linux but you  have to open the page to see which one you have got. Present NI-VISA is 5.3.

I had previously downloaded Tektronics OpenChoice software to play with. At about 500MB, guessing it also comes with a full version of NI-VISA rather than the runtime.

we have verifed the driver, installing the EasyScopeX driver, you only need to install the "NI-VISA runtime" driver, the new installation instructions and driver will be updated
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Offline bluey

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Re: SIGLENT SDS1102CML - First Impressions
« Reply #36 on: June 27, 2013, 07:50:05 am »
For some reason, EasyScopeX does not want to talk to NI-VISA driver. NIMAX will talk to the scope mostly happily, but not EasyScopeX. EasyScopE->add device ->USBTMC fails with "have not find any device". Have uninstalled and reinstalled all software, but same problem. Oddly, the vendor I got the scope from says theirs works fine on same OS. Hoping to hear exactly which driver they have talking, as I presume they have a load of drivers on the showroom computer.

SDS1102CML firmware 5.02.02.13
NI-VISA full 5.3
EasyscopeX p08
Windows7-64bit
driver selected by windows ausbtmc.sys (IVI)

NI-VISA 5.3 installs .NET framework 4. So I didn't install 3.5. Will try that to see if it makes a difference. The EasyScopeX help files show an earlier version of the software with different "Add Device" dialog box titles "USBTMC..." rather than "Connect..." with the latest software version. So I don't trust that .NET 3.5 is required over .NET 4.x

It looks like others have the same trouble with ATTEN machines, with no answers.
http://tlfong01.blogspot.com.au/2013/06/atten-ads1102cal-easyscopex.html
https://www.eevblog.com/forum/testgear/atten-ads1102cnl/

There are bugs in permissions, since EasyScopeX does not seem to install properly unless "run as administrator". I also set the application properties to "run as administrator". Every time I launch EasyScopeX, User Account Control wants permission to change the system. Oddly, there are no registry entries for EasyScopeX (excepting uninstall info).

While messing around, I have also tried Atten EasyScope3 on Win7, Atten EasyScope3 in XP Mode, Lecroy Wavestudio. WaveStudio looks like EasyScopeX, with a different skin. It will actually find the USBTMC scope "USB0::0xF4EC::0xEE3A::SDS0000nnnnnnn::INSTR" , but says it is "dead" - perhaps because it wants to talk to LeCroy firmware.

Have emailed all this to someone at Siglent (name I got from vendor), but still awaiting a reply.
« Last Edit: June 27, 2013, 08:26:05 am by bluey »
 

Offline Siglent

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Re: SIGLENT SDS1102CML - First Impressions
« Reply #37 on: June 27, 2013, 09:35:30 am »
For some reason, EasyScopeX does not want to talk to NI-VISA driver. NIMAX will talk to the scope mostly happily, but not EasyScopeX. EasyScopE->add device ->USBTMC fails with "have not find any device". Have uninstalled and reinstalled all software, but same problem. Oddly, the vendor I got the scope from says theirs works fine on same OS. Hoping to hear exactly which driver they have talking, as I presume they have a load of drivers on the showroom computer.

SDS1102CML firmware 5.02.02.13
NI-VISA full 5.3
EasyscopeX p08
Windows7-64bit
driver selected by windows ausbtmc.sys (IVI)


On the windows 7-64bit, it needs to use the NI-VISA 5.1.2
If you have any questions,you can continue to ask questions

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Offline bluey

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Re: SIGLENT SDS1102CML - First Impressions
« Reply #38 on: June 27, 2013, 09:57:51 pm »
NI-VISA 5.1.2 does work with EasyScopeXp07 (CD version) on Win7-64bit. I have installed the full version because i was using the NI Measurement and Automation Explorer for debugging, but presumably the runtime would work too.

Thanks for your help, Siglent.
 

Offline Siglent

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Re: SIGLENT SDS1102CML - First Impressions
« Reply #39 on: June 28, 2013, 02:10:45 am »
There is limit of processing capacity. With it need live. It is hard to make this faster. Of course if change  priority of processes but then perhaps some other thing suffer. It is compromise.

I don't think the delay between changing the time base or vertical setting and the time when the trace re-appears is a problem with processing capacity. It's much more likely that this is just a firmware bug. The scope is quite fast and this problem only occurs sometimes (at least on my CNL scope). I'm pretty sure Siglent can fix it easily in one of their next firmware releases - if they are aware of the problem, that is.

This is not problem, in the different time base, it needs a different sampling time, therefore, when the large time base, you will find that a longer delay (between changing the time base or vertical setting).
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Offline Siglent

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Re: SIGLENT SDS1102CML - First Impressions
« Reply #40 on: June 28, 2013, 02:21:19 am »
Bellow you can see a very nice sinewave with the probes not connected to anything...
50Hz, so its picking the mains frequency somehow.
Do you know how can I prevent this?
When I moved it to a different room it stopped.


upload photos
This is normal, the probe and oscilloscope constitute antenna system, the signal waveform that on the screen of the ambient radiation ( such as power radiation etc. )
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Offline ChildOfVision

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Re: SIGLENT SDS1102CML - First Impressions
« Reply #41 on: June 28, 2013, 01:33:05 pm »
Hello to all!

@hgg: Really nice review and pictures!
Quote from: hgg
Some measurements.

- Power Consumption : 18.7 Watts
- Temperature : from 23 degrees Celcius ambient to 34 degrees after one hour of use.
                         The hottest part is the right side.
- Time to boot : 9 seconds.
- Time to Auto trigget its own signal : 5 seconds.   It can become much slower with different signals.
- You can hear a relay clicking when you change from 200mV to 500mV and from 50ns to 100ns
- Software Version  :  5.01.02.13
- Hardware Version :  11-62-3.3

- Sound Noise : Its a very quiet oscilloscope!  My house is very quite.

I have a little confusing question, NOT related to SDS1102CML but to SDS1072CML (Siglent)! It is HW version "issue".
I will get Siglent SDS1072CML for about a month :-+, it is already bought from amazon.de (299€) by my cousin living in Germany. Scope came very fast, everything (visual) seems fine. I asked before the seller (Futu-Tech) what are exact hardware and firmware versions for this scope: seller answered me next day: HW version: 11-66-3.3, and FW: 5.01.02.13 (the latest if I'm not wrong).

Since my cousin doesn't know virtually anything about that kind of equipment, I asked him (remote assistance by the phone hehe) to turn scope on and to tell me HW and FW numbers from utility\system status!

The Firmware ver. is : 5.01.02.13 (seems ok), BUT
the Hardware version is: 11-62-3.3 !? -just like on your 1102 (100MHZ) scope, not 11-66-3.3 as it should be?
I don't know anything else, besides very very quiet fan!

What do you thing what is what here?

As you all know, Siglent produces oscilloscopes also for Atten, LeCroy...
I found that Atten ADS1102CML (Siglent of course) has that HW version!
So, is it possible that, whoever does this, built in 100MHz PCB, intended for Atten1102 into Siglent's 1072CML shell? What is more reliable: label on the scope (and "Siglent1072CML" on welcome-screen!) OR data from System status?

Is it possible that I will get Siglent 1102CML 100MHz scope in 1072's housing :D :D?
Of course I can't measure trise right now (frankly I'm not sure how to PROPERLY do this) - that would reveal actual BW ( if tr is less than 3,5ns =>100MHz -true?).

Also I want to "warn" you all - User Manual that comes with o'scope (and from net) is quite obsolete - no mention about time/date adjustments for example - you can find more recent data from appropriate LeCroy's User manual!

Any clue appreciated!
Sorry, my English is awful!!!
 

Offline rf-loop

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Re: SIGLENT SDS1102CML - First Impressions
« Reply #42 on: June 28, 2013, 03:54:43 pm »
I have a little confusing question, NOT related to SDS1102CML but to SDS1072CML (Siglent)!

I will get Siglent SDS1072CML for about a month :-+, it is already bought from amazon.de (299€) by my cousin living in Germany. Scope came very fast, everything (visual) seems fine. I asked before the seller (Futu-Tech) what are exact hardware and firmware versions for this scope: seller answered me next day: HW version: 11-66-3.3, and FW: 5.01.02.13 (the latest if I'm not wrong).

Since my cousin doesn't know virtually anything about that kind of equipment, I asked him (remote assistance by the phone hehe) to turn scope on and to tell me HW and FW numbers from utility\system status!

The Firmware ver. is : 5.01.02.13 (seems ok), BUT
the Hardware version is: 11-62-3.3 !? -just like on your 1102 (100MHZ) scope, not 11-66-3.3 as it should be?
I don't know anything else, besides very very quiet fan!

What do you thing what is what here?

As you all know, Siglent produces oscilloscopes also for Atten, LeCroy...
I found that Atten ADS1102CML (Siglent of course) has that HW version!
So, is it possible that, whoever does this, built in 100MHz PCB, intended for Atten1102 into Siglent's 1072CML shell? What is more reliable: label on the scope (and "Siglent1072CML" on welcome-screen!) OR data from System status?

Is it possible that I will get Siglent 1102CML 100MHz scope in 1072's housing :D :D?
Of course I can't measure trise right now (frankly I'm not sure how to PROPERLY do this) - that would reveal actual BW ( if tr is less than 3,5ns =>100MHz -true?).

Also I want to "warn" you all - User Manual that comes with o'scope (and from net) is quite obsolete - no mention about time/date adjustments for example - you can find more recent data from appropriate LeCroy's User manual!

Any clue appreciated!

This 11-66-3.3 must be typing mistake.

I have   SDS1072CML and 1102CML in stock.
Both models have HW: 11-62-3.3



System data and boot up screen tell you have Siglent SDS1072CML.

And its rise time is near 3.5ns and its -3dB BW is over 100MHz.
(in EEVblog forum you can find test result)
https://www.eevblog.com/forum/testgear/is-rigol-ds1052e-still-the-best-option-in-its-class/msg247100/#msg247100
« Last Edit: June 28, 2013, 03:58:01 pm by rf-loop »
I drive a LEC (low el. consumption) BEV car. Smoke exhaust pipes - go to museum. In Finland quite all electric power is made using nuclear, wind, solar and water.

Wises must compel the mad barbarians to stop their crimes against humanity. Where have the wises gone?
 

Offline ChildOfVision

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Re: SIGLENT SDS1102CML - First Impressions
« Reply #43 on: June 28, 2013, 04:26:25 pm »
Quote from: rf-loop
This 11-66-3.3 must be typing mistake.
OK, thank you rf-loop! I will recheck this!
What did you mean under "typing mistake" - my cousin "misread" screen content or am I heard (and wrote to paper) wrong value (he repeated that numbers at least 3 times, because it was suspicious to me (I knew what I should expect)!) OR Siglent made typo in firmware?
...
EDIT:  |O Please, SORRY, you meant that guys from amazon made typo? That's understandable.
But, can I ask you, since you have both o'scopes, if the hardware is the same (or the same HW version doesn't mean that PCBs and parts are the same?) is there any substantial difference between 1102 and 1072CML except 70/100 MHz bw (and 50 EUR more for 1102)?
Quote from: rf-loop
And its (1072?) rise time is near 3.5ns and its -3dB BW is over 100MHz.
According to this, there is no reason to pay extra 50€ for 100MHz version!?

I will study now your link, thanks alot! :-+
« Last Edit: June 28, 2013, 07:09:23 pm by ChildOfVision »
Sorry, my English is awful!!!
 

Offline rf-loop

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Re: SIGLENT SDS1102CML - First Impressions
« Reply #44 on: June 28, 2013, 06:15:18 pm »
Quote from: rf-loop
This 11-66-3.3 must be typing mistake.
OK, thank you rf-loop! I will reckeck this!
What did you mean under "typing mistake" - my cousin "misread" screen content or am I heard (and wrote to paper) wrong value (he repeated that numbers at least 3 times, because it was suspicious to me (I knew what I should expect)!) OR Siglent made typo in firmware?
...
EDIT:  |O Please, SORRY, you meant that guys from amazon made typo? That's understandable.
But, can I ask you, since you have both o'scopes, if the hardware is the same (or the same HW version doesn't mean that PCBs and parts are the same?) is there any substantial difference between 1102 and 1072CML except 70/100 MHz bw (and 50 EUR more for 1102)?
Quote from: rf-loop
And its (1072?) rise time is near 3.5ns and its -3dB BW is over 100MHz.
According to this, there is no reason to pay extra 50€ for 100MHz version!?

I will study now your link, thanks alot! :-+

They are same, exept analog front end BW..

Analog front end BW is different,  but I do not know (read: I do not want take a position)  how the difference have been  made.

In some needs difference is "substantial" and in other needs difference is "big". It depends...
« Last Edit: June 28, 2013, 06:28:13 pm by rf-loop »
I drive a LEC (low el. consumption) BEV car. Smoke exhaust pipes - go to museum. In Finland quite all electric power is made using nuclear, wind, solar and water.

Wises must compel the mad barbarians to stop their crimes against humanity. Where have the wises gone?
 

Pippy

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Re: SIGLENT SDS1102CML - First Impressions
« Reply #45 on: July 06, 2013, 09:19:56 am »
Just bought one of these scopes (the SDS1102CML) and it's not to bad I guess. Firmware could be better but se-la-vie.

They have a problem with their software channel filter, at lower frequencies rather than do proper low-pass-filtering it slightly rounds off the edges (which is correct) but then cuts the amplitude down (which is wrong).

This is looking at the scopes own 1kHz reference ..

« Last Edit: July 06, 2013, 09:22:22 am by Pippy »
 

Offline illyesgeza

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  • Posts: 41
Re: SIGLENT SDS1102CML - First Impressions
« Reply #46 on: July 06, 2013, 09:29:01 am »

Can anybody who has a SIGLENT SDS1102CML dso help me?
Please save the data from channel 1 from the scope's calibrator signal with the horizontal position on 250us in LongMem mode to a file
The file size would be 2M
I'd like to post it to me
Thanks
 

Offline illyesgeza

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  • Posts: 41
Re: SIGLENT SDS1102CML - First Impressions
« Reply #47 on: July 09, 2013, 10:08:12 am »
Look at this two signals. The difference is longmem on and longmem off.
800khz / 20khz = 40, but the samplingrate was 500KS/s and 25MS/s
25 / .5 = 50
There is a bug in the FFT calc.
 

Offline Deckert

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  • Posts: 149
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Re: SIGLENT SDS1102CML - First Impressions
« Reply #48 on: July 09, 2013, 09:34:19 pm »
Look at this two signals. The difference is longmem on and longmem off.
800khz / 20khz = 40, but the samplingrate was 500KS/s and 25MS/s
25 / .5 = 50
There is a bug in the FFT calc.

Agreed - I noted the same discrepancy in my review of the Siglent/Atten 'scope using the 3.x firmware. So this is an issue they did not fix in the 5.x firmware? When I tested this on the Rigol DS1102E, I noted that the Rigol simply switches back to short-mem "Normal" mode when you enter FFT mode.

--deckert
 

Offline ChildOfVision

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  • Posts: 28
  • Country: 00
Re: SIGLENT SDS1102CML - First Impressions
« Reply #49 on: July 25, 2013, 06:42:36 pm »
Again, a few questions about SDS1072, not 1102, sorry (I believe those are 99% identical scopes anyway...):

1) How can I use RS232 for some practical, useful and fun (of course) things?

2) In order to use EasyScopeX, I have to download a huuuuge NI-VISA package  :((>600M?) - Easyscope is just a few MB, so how can I use this software with minimum additional software - what should I download?

What other software can I use with SDS? Can I use LabView (it already includes NI-visa) - is it better than EasyScope (I don't plan to do nothing special; to see waveforms on PC monitor, change colors of images, simple measurements (but on bigger screen :)), simple analysis. If it is better than ES, I will rather downl....  :-[ hmm... buy full version of LabView instead of ES+NI-VISA!

3) Does somebody know how to calculate/estimate number of waveforms per sec (I don't have any fancy equipment!)?

4) Can I kindly ask, if somebody has ECG simulation image (in scope's format) that I can put on USB-stick and see it on my scope, I will be veeery grateful if he/she puts that file here!?

TIA!
Child
« Last Edit: July 25, 2013, 06:44:07 pm by ChildOfVision »
Sorry, my English is awful!!!
 


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