No replies from "Siglent" :/
No replies from "Siglent" :/Seriously, I don't understand why you keep on at this. Sigrok is open source so the community can write code for it. Siglent have done all that is needed to enable this - they have published the SCPI protocol and even have LabVIEW drivers which can easily be examined with a trial version of LabVIEW - it's all out in the open.
Anyone can now make a Sigrok driver. Just find the code for another function gen in Sigrok that has been implemented using SCPI and modify it to suit. Surely it's that easy?
Why not give it a go?
Sigrok developers use their free time to maintain the project, they aren't paid for it.
They don't care about their product enough to submit a patch. That makes their products not attractive at all and just keeps perpetuate the "chinese products are crap" stereotype. Why do others need to work for them? Sigrok adds value to their products.
I prefer to buy products with companies friendly to my OS and Open Source, not needing reverse engineering or extra efforts.
Sigrok developers use their free time to maintain the project, they aren't paid for it.
They don't care about their product enough to submit a patch. That makes their products not attractive at all and just keeps perpetuate the "chinese products are crap" stereotype. Why do others need to work for them? Sigrok adds value to their products.
I prefer to buy products with companies friendly to my OS and Open Source, not needing reverse engineering or extra efforts.Can you please show me the other manufacturers who are writing drivers for Sigrok? Specifically the function generators. After all you obviously think the Siglent SDG is chinese crap and have another model in mind, say Agilent, Rhode & Schwarz or something pretending to be none chinese. Can you show me the Sigrok drivers they have developed?
From what I can see the Siglent is one of the two function gens that the Sigrok team are planning to support, the other being a Hantek. They can do this precisely because there is no need to reverse engineer the SDG or proprietary Windows drivers. It's all out in the open. You can switch your SDG into USB-TMC mode, linux includes usbtmc in the kernel.
Now, my Hantek MSO5102D oscilloscope on the other hand - that is crappy closed source proprietary shite. Thankfully due to the sterling efforts of tinhead the reverse engineering has been done - and most of the details are there for someone to pick up the can and add the layer needed for Sigrok. There is a case for this as the MSO has a logic analyzer in it which badly needs a PC front end as the one on the scope is crap.
You say you are not a developer, so what do you plan to do with Sigrok when you have this driver? As far as I am aware the only front-end available for it is PulseView for logic analyzers. A universal function generator front end needs to be developed too.
Siglent attitude is hypocritically polite. They showed fake interest in the project and said to participate this forum, but they vanished and ignored us. They lost their credibility with that lack of seriousness, showing no responsibility nor compromise.
Do they want advertising? Pay for it. If they want to really get community involved, demonstrate it!
Hello, I am new to this forum, and pretty new to blogs in general, so please forgive my ignorance. I am a retired engineer (mostly Visual Basic software for Test Equipment), and I am thinking of playing around with some embedded processors, single board computers, and such as a hobby. I have been looking for an entry level oscilloscope, which is how I found this forum. The amount of information here is overwhelming, but much appreciated. I have gathered that Rigol scopes have a strong following, but my rather uneducated preferences have been leading me towards a 2 channel Siglent scope, i.e. SDS1072CML (~$300 USD). I like the larger display, the individual vertical channel controls, and the quiet fan.
In this thread, I saw a link to a firmware version of 5.01.02.29, but I found on the Siglent site that they have a 5.01.02.32 version. Can anyone tell me what features this firmware adds, or problems it solves?
I would really be interested in people who have had a Siglent SDS1xxxCML scope for a while to see if you are still happy with it?
Thanks so much for any help!
Lastest SDS1000 CNL/CML FW update.
Summary of Changes:
1.added bandwidth update option
2.fixed some bugs(including trigger jitter problem.
If use LongMemory and if timebase is 250us/div or less there is a jitter. If change to Normal memory no problem, if switch to Long Memory it appears.)
http://siglentamerica.com/download/software/SDS1000CML_SSP_V100R005B01D02P32.rar
...The HW in this series is common up to the 150 MHz model, so there will be no frequency roll off in the 70 MHz model at max BW.
Does that mean that the hardware's bandwidth is the same on all the scopes in this series, but maybe just the timebase settings are restricted?
Can someone explain the maximum input voltage specifications for the sds1000cml range?
It is quoted as "400V (DC+AC PK-PK,1M? input impedance, X10),CAT I" in Siglent's documentation.
Does that mean that it's the maximum when using a 10x probe? If so what is the significance of 1M?? The front panel is marked 400 V with no reference to the use of a 10x probe and is also marked CAT II as opposed to CAT I. All rather contradictory.
How about the maximum input voltage on the Trigger input?
Russell.
1 M Ohm is the standard input impedence for oscilloscope vertical channels.
Normal scope usage is with 10:1 probes, up to voltages specified as max for the probe in 10:1 setting.
For SDS1102CML probes this is 600V.
Refer to the probe datasheet for the "derating with frequency" graph
Within a measurement system it is best to apply the lowest of any CAT ratings.
I have just received an email from Siglent.uk and they confirm that the 400 V maximum is when using a 10x probe. The maximum input at the socket is 40 V, not the 400 V that is marked on the instrument.
I have just received an email from Siglent.uk and they confirm that the 400 V maximum is when using a 10x probe. The maximum input at the socket is 40 V, not the 400 V that is marked on the instrument.
They also confirmed that the 10x probe can safely be connected to the supply mains.
Russell.
Table 1-2 Oscilloscope specifications
Inputs
Input Coupling AC, DC, GND
Input Impedance ?1M?±2%?||?16Pf±3Pf?
Maximum input voltage 400Vpk, CAT I I
Probe attenuation 1X, 10X
Probe attenuation ratio 1X, 5X, 10X, 50X, 100X, 500X, 1000X
Vertical System
Volts/Div Range 2mV/div~10V/div( in 1, 2, 5 sequence)
Channel Voltage Offset Range (1)
2mV~200mV: ±1.6V
206 mV~10V: ±40V
Maybe the maximum range of a 1:1 probe is 5V/div which means the maximum peak-peak you can display is 40V
I have just received an email from Siglent.uk and they confirm that the 400 V maximum is when using a 10x probe. The maximum input at the socket is 40 V, not the 400 V that is marked on the instrument.
If really was the case, we'd have blown up front ends of Siglents everywhere.....where are these popped Siglents?
Nowhere, the all have 400 V channel input ratings.
Edit add: And what is Siglent.uk ??
For OQ: If this answer about input was from Siglent please tell more about this answer. There need do company personnel internal training about products.
Thank you for your email.
Yes 400V is with a 10X probe!
We do recommend when you use this scope and you are testing equipment with a higher voltage then 40V to always set your scope and probe in the 10X setting. This is much safer!
Connection to mains or other high voltages can be done in the 10X setting but be aware the the scope has no isolated inputs!
The work safely with mains we recommend a isolated front end :
http://www.siglent.eu/isfe-siglent-isolated-front-end-module.html
If you have any other questions please let us know.
Russell
For OQ: If this answer about input was from Siglent please tell more about this answer. There need do company personnel internal training about products.Email received from support@siglent.eu:Code: [Select]Thank you for your email.
Russell
Yes 400V is with a 10X probe!
We do recommend when you use this scope and you are testing equipment with a higher voltage then 40V to always set your scope and probe in the 10X setting. This is much safer!
Connection to mains or other high voltages can be done in the 10X setting but be aware the the scope has no isolated inputs!
The work safely with mains we recommend a isolated front end :
http://www.siglent.eu/isfe-siglent-isolated-front-end-module.html
If you have any other questions please let us know.