=>New products are coming this year ! :clap:Any further rumors on the high end version ?
>In june: A new lower cost DSOTouch will come out, with a bandwidth of 50Mhz.
>Later this year: new higher-end DSOTouch will come out.
Looks like the low end version is available through AliExpress. Clearly aimed at the Miniware DS212 !
DST212 (https://www.aliexpress.us/item/3256805188089923.html)
I found this description on eBay DS4T212 70M/200MSa/s/2Mpts Portable Digital Oscilloscope Signal Generator (https://www.ebay.com/itm/165960847201)
DS4T212 70M/200MSa/s/2Mpts Digital Oscilloscope Signal Generator Portable Handheld Oscilloscope
Warning: there have been some reports of unauthorized clones of their scopes out in the wild, so I would advise against ordering from anyone but DreamSourceLab or an official channel.For some reason I feel like their original logic analyzer has been cloned on various markets for many years now. I’m also suspicious of several low price DSlogic Plus models - they don’t ‘feel’ authentic. Probably a hazard of Chinese manufacturing organizations and how they seem to ‘share’ a lot between them…
These seem to be pretty neat pocket scopes but having no proper PC connection is a weird decision. Maybe they wanted to protect their DSCope range which isn't really appealing to me.
I'd hope they reconsider this at some point...
There is an USB Mode to upload/download files like screenshot between computer and the DSTouch (page 50 from usermanual/2.13.4 chapter).
But there is no possibility to use it as an USB-only DSO mode.
In fact, this type of "dual" DSO mode doesn't exist in the market.
You will find mainly either DSO without screen (USB-only mode), or DSO with Screen, on the higher-end level side with hdmi port and/or network connection for viewing the screen and controlling the DSO remotely (with little lag).
There is an USB Mode to upload/download files like screenshot between computer and the DSTouch (page 50 from usermanual/2.13.4 chapter).
But there is no possibility to use it as an USB-only DSO mode.
In fact, this type of "dual" DSO mode doesn't exist in the market.
You will find mainly either DSO without screen (USB-only mode), or DSO with Screen, on the higher-end level side with hdmi port and/or network connection for viewing the screen and controlling the DSO remotely (with little lag).
This is not completely true. I believe that most modern portable scopes have full remote capability.
At the top side you can look at R&S RTH1000 series.
From the "economy" side all Hantek DSO1000 series https://www.hantek.eu/category/digital-oscilloscopes/handheld-oscilloscopes/ (https://www.hantek.eu/category/digital-oscilloscopes/handheld-oscilloscopes/) (or maybe all their handhelds) support full remote operation.
There is a huge thread on this forum on "expanding" these scopes and adding Ethernet option (which seems to be uncommon).
See also https://github.com/OpenHantek/openhantek (https://github.com/OpenHantek/openhantek) project.
I don't like the Hantek 2C/2D low cost series - I have checked them when I was looking for a portable DSO.
dear ceut couldn't you show how it will display different types of modulation? and fast sweep mode exposing the frequency swing time in milliseconds from 10 to 100 milliseconds (on the video saw your generator 6600-it has this capability) if you have an Oscilloscope Micsig or any other -perhaps you can check you sample amount per second(number of displayed oscillograms per second)?
Thank you so much that you did the first video review
dear ceut couldn't you show how it will display different types of modulation? and fast sweep mode exposing the frequency swing time in milliseconds from 10 to 100 milliseconds (on the video saw your generator 6600-it has this capability) if you have an Oscilloscope Micsig or any other -perhaps you can check you sample amount per second(number of displayed oscillograms per second)?
Thank you so much that you did the first video review
@ceut
How much did you pay as import taxes etc.... ?
I am very interested in getting one, but I woud like to know beforehand what I've got to pay....
Thanks,
I have mine on order. It looks like DSview v1.3.2 can interface with the DSTouch oscilloscopes now.
Hello,
A little follow-up after receiving my DSOTouch DS4T252 (50Mhz bandwidth).
I have tried to make an unboxing+review here (in french because my english speaking is..... :palm: but there are subtitles ^-^ ) :
https://www.youtube.com/watch?v=eDGhkWFO2aQ (https://www.youtube.com/watch?v=eDGhkWFO2aQ)
I'm not a professional "Youtuber" and I don't have any good camera except my old Android phone ;D
I hope it will help some of you who, like me, are looking for a portable, affordable, fast and silent DSO with a FPGA :)
I have put all the information in the video description 8)
Also, I have been in touch with their support, they are really nice and reply fast :-+
So I highly recommend this little DSO ;)
Edit: A funny checking I have done some minutes ago ;D
2 great tools together measuring each parts of the other one
| Component_description | | | DS4T1012_(PCB:_TOUCH1G-V1011-P0715) | | | DS4T252_(PCB: DST252-V911-P0524) |
| PCB upper side | | | | | ||
| MCU | | | STM32H750 ARM Cortex M7 | | | STM32H750 ARM Cortex M7 |
| Waveform sampling storage | | | 9DK17 D9PTK MT41K128M16JT-125 2Gbit DRAM | | | W9864G6KH winbound 64Mbit |
| Battery Manager | | | BQ25601 | | | BQ25601 |
| High Speed Data Processing | | | XC6SLX16 xilinx SPARTAN-6 FPGA | | | XC6SLX16 xilinx SPARTAN-6 FPGA |
| Vertical channels ADC | | | HAD1511 1000MSPS (one-channel), 500MSPS (two-channels) | | | MXT2088 200MSPS (one-channel), 100MSPS (two-channels) |
| ADC Sampling Clock Generator | | | ADF4360-7 24-pin IC, Integrated Synthesizer and VCO | | | 8-pin IC?? Close to the ADC, but can not see details due to low resolution pictures |
| PCB under side | | | | | ||
| 128Mbit Flash Memory | | | W25Q128JV winbound | | | W25Q128JV winbound |
| 64Mbit Flash Memory | | | W25Q64FV winbound | | | W25Q64FV winbound |
Your Juntek is really noisy. I post two photos of my unit using a Feeltech 6800 and Uni-T UTG932+ (+ means 30MHz model hacked to 60MHz)
The time to fully charge DS4T252 is 2h38, total capacity 3137mAh
The ground noise on my two DS4T252 units are between 566uV and 600uV
What I find pretty much underwhelming here is the total lack of any trigger options beyond the bare minimum.
According to the manual, there is only a rising edge or falling edge trigger. There is note even a "both edges" trigger, letting aside all the other most basic trigger options (Pulse Width, Nth Edge, Timeout etc.) which would have been really, really easy to implement.
Admittedly, an edge trigger is the one you will need most but they really didn't put any kind of effort here to do more than the absolute minimum.
Your Juntek is really noisy. I post two photos of my unit using a Feeltech 6800 and Uni-T UTG932+ (+ means 30MHz model hacked to 60MHz)
The time to fully charge DS4T252 is 2h38, total capacity 3137mAh
The ground noise on my two DS4T252 units are between 566uV and 600uV
Yap, the Juntek JDS-2900 was a low cost buy just to have something able to generate large signals at 50MHz here in my mom's home where I spend more time than on my home 500km away.
Thanks for checking the low level signal registering using better Signal Generators.
It seems that most of the noise seen on your pictures is related to the oscilloscope vertical amplifier internal noise.
Did your scope triggered in auto mode those small signals, or did you had to enable trigger holdoff?
Your Juntek is really noisy. I post two photos of my unit using a Feeltech 6800 and Uni-T UTG932+ (+ means 30MHz model hacked to 60MHz)
The time to fully charge DS4T252 is 2h38, total capacity 3137mAh
The ground noise on my two DS4T252 units are between 566uV and 600uV
Yap, the Juntek JDS-2900 was a low cost buy just to have something able to generate large signals at 50MHz here in my mom's home where I spend more time than on my home 500km away.
Thanks for checking the low level signal registering using better Signal Generators.
It seems that most of the noise seen on your pictures is related to the oscilloscope vertical amplifier internal noise.
Did your scope triggered in auto mode those small signals, or did you had to enable trigger holdoff?
Did you try running your Juntek from battery? you will reduce noise dramatically. My Fy6800 was running from AC but my UTG932 is running from battery.
I am looking for advice for amateur use in a home workshop: audio circuits, automotive diagnostics, and testing power supplies, e.g., ripple and noise measurements.
I am considering buying the DS4T252 or the Owon HDS2102S. I’m stuck — which one would you choose?
Some DC measurements comparing with DM40C
Voltage reference chip is AD584LH
The DS4T252 has an option called "amplitude fine tuning" to manually calibrate DC values, but I didn't do it because I don't feel the need to. For me the displayed values are accurate enough.
Some DC measurements comparing with DM40C
Voltage reference chip is AD584LH
The DS4T252 has an option called "amplitude fine tuning" to manually calibrate DC values, but I didn't do it because I don't feel the need to. For me the displayed values are accurate enough.
Impressive. I was not expecting that level of precision on these low cost scopes.
So far, the only thing I don't like in the DSTouch DS4T252, it is the case construction.
It seems that it is caseless - They just sandwiched the assemblies and then applied vulcanized rubber around it to form a case.
It seems to be virtually impossible to open this case to peek around inside without deforming or even destroying the rubber case.
After looking to some videos where it has been dismantled, I am not keen to do the same thing on my unit :--
One DS4T252 internal EMF noise source found (probably not unique but surely it is the larger one).
Colour TFT displays with TouchScreen are a well known major source of EMF interference.
(I have several advanced DSP receivers and only the ones equipped with a colour TFT display are picking up strong interference when using the local telescopic antenna on LW, MW and even HF lower bands. In practice this is not a real issue as we tend to use external antennas enough far away from the display.
One of them uses a colour touchscreen (TS) display and is the worst offender. This is because they do use TS polls instead of interrupts to detect a pressure).
As I suspected, the colour display with TS used in this DS4T252 oscilloscope is not different, and it indeed generates a lot of EMF interference.
To verify this issue, I used another low sensitivity oscilloscope (a Zeeweii DSO3D12 on 10mV/div) with a short loop probe at X1, and move the probe around the DS4T252 device.
The largest noise is clearing coming from the front left lower corner, decreasing fast when moving the probe away from it.
This TS display noise seems to being picked up by the vertical amplifiers and visible when selecting the maximum sensitivity of 1mV/div.
I suspect that the vertical amplifiers may not be shielded or are insufficiently shielded at the PCB side facing the Display.
The DS4T252 has an option called "amplitude fine tuning" to manually calibrate DC values, but I didn't do it because I don't feel the need to. For me the displayed values are accurate enough.Somehow "Amplitude Tuning" does not work on my unit - it is present in the menu (along with the "Auto Calibration"), but, unlike "Auto Calibration", nothing happens when I choose it.
The DS4T252 has an option called "amplitude fine tuning" to manually calibrate DC values, but I didn't do it because I don't feel the need to. For me the displayed values are accurate enough.Somehow "Amplitude Tuning" does not work on my unit - it is present in the menu (along with the "Auto Calibration"), but, unlike "Auto Calibration", nothing happens when I choose it.
Interesting that I couldn't replicate the noise test the same way you did it, can't see any noise on both scopes. Only if I set vertical to 1mV/div on the scope with the probe I'm able to see the "noise" at 1.5mV level
Then i decided to try a different approach instead of a shorted loop, i used a ferrite inductance as an antenna to "amplify" the noises and I'm able to detect more information from the lower middle to the left, on the back you can get a stronger noise detection.
With the little trick of using a "ferrite inductance" you can even "see" smps control chip working signals without having to touch the chip
Interesting that I couldn't replicate the noise test the same way you did it, can't see any noise on both scopes. Only if I set vertical to 1mV/div on the scope with the probe I'm able to see the "noise" at 1.5mV level
Then i decided to try a different approach instead of a shorted loop, i used a ferrite inductance as an antenna to "amplify" the noises and I'm able to detect more information from the lower middle to the left, on the back you can get a stronger noise detection.
With the little trick of using a "ferrite inductance" you can even "see" smps control chip working signals without having to touch the chip
My probe is just a 100MHz oscilloscope probe set on X1 and shorted by the ground cable to form a small loop, and the oscilloscope was set to X1 as well, with 10mV/div.
Try moving the probe *slowly* around the border of the left lower corner of the DUT as seen in my pictures, where the antenna is the ground cable.
A little deviation and the signal indeed reduces dramatically and fade away on a 10mV/div scope.
My DUT unit is generating in excess of 20mVpp on a single point that I guess is closer to the Touch Screen IC from the front side. This TS chip is installed on the flat cable. This noise amplitude and frequency readings changes with the selected time base on the probing oscilloscope.
If you can't detect it, probably you have a different version of DS4T252 hardware assembly.
My DS4T252 unit measures in excess of 700uVpp of internal noise on 1mV/div, while yours shows quite lower levels of noise.
I wonder if the manufacturer didn't install the shield covers at the front side of the PCB assembly facing the display on some production batches from where my unit came from.
That would partially explain why your units are quieter than mine.
Anyway, I am not planing to open my unit at this time to check the shielding.
Interesting that I couldn't replicate the noise test the same way you did it, can't see any noise on both scopes. Only if I set vertical to 1mV/div on the scope with the probe I'm able to see the "noise" at 1.5mV level
Then i decided to try a different approach instead of a shorted loop, i used a ferrite inductance as an antenna to "amplify" the noises and I'm able to detect more information from the lower middle to the left, on the back you can get a stronger noise detection.
With the little trick of using a "ferrite inductance" you can even "see" smps control chip working signals without having to touch the chip
My probe is just a 100MHz oscilloscope probe set on X1 and shorted by the ground cable to form a small loop, and the oscilloscope was set to X1 as well, with 10mV/div.
Try moving the probe *slowly* around the border of the left lower corner of the DUT as seen in my pictures, where the antenna is the ground cable.
A little deviation and the signal indeed reduces dramatically and fade away on a 10mV/div scope.
My DUT unit is generating in excess of 20mVpp on a single point that I guess is closer to the Touch Screen IC from the front side. This TS chip is installed on the flat cable. This noise amplitude and frequency readings changes with the selected time base on the probing oscilloscope.
If you can't detect it, probably you have a different version of DS4T252 hardware assembly.
My DS4T252 unit measures in excess of 700uVpp of internal noise on 1mV/div, while yours shows quite lower levels of noise.
I wonder if the manufacturer didn't install the shield covers at the front side of the PCB assembly facing the display on some production batches from where my unit came from.
That would partially explain why your units are quieter than mine.
Anyway, I am not planing to open my unit at this time to check the shielding.
when did you bought your scope? I bought both directly from the manufacturer, the first one 15 days ago, and the second 7 days ago. Overall I'm satisfied with them, the 2M memory are really handy. My understanding is that they are still working on them, improving the firmware and correcting bugs.
Are you sure that noise doesn't come from any other device you have connected? like a led bulb?
Are you sure that noise doesn't come from any other device you have connected? like a led bulb?
That is not possible in the test I did because, as seen in the posted pictures, I have no noise picked up until the DS4T252 is powered up.
And the noise is clearly coming from that lower left corner at a very specific place were the probe GND cable was placed.
Clearly your oscilloscopes were built differently from my unit. I find no other explanation.
Are you sure that noise doesn't come from any other device you have connected? like a led bulb?
That is not possible in the test I did because, as seen in the posted pictures, I have no noise picked up until the DS4T252 is powered up.
And the noise is clearly coming from that lower left corner at a very specific place were the probe GND cable was placed.
Clearly your oscilloscopes were built differently from my unit. I find no other explanation.
Did you see the Kerry review on YT?
Please see at 9:22 where he checks the 1mV/div sensitivity.
He got basically the same noise I have on my unit.
Here: https://www.youtube.com/watch?v=FKZ6jJnyRps (https://www.youtube.com/watch?v=FKZ6jJnyRps)
Probably you got one of the first batches, the same as he did, because the new box is smaller, that's my guess. And as I told you I bought directly from Dreamsourcelab.
Probably you got one of the first batches, the same as he did, because the new box is smaller, that's my guess. And as I told you I bought directly from Dreamsourcelab.
Yes, most probably there are at least two different hardware builds of this DS4T252 model.
And that is a good thing, it means they are addressing the issues.
Meanwhile I found some YT videos advertising the DreamSourceLab DSTouch DS4T252, and in one of them someone claims 90uVrms of noise at 1mV/div.
The small letters clearly state that "The noise level data is based on empirical measurements and may vary slightly due to environment factors".
Also they omit in what conditions they got that reading.
Now, those 90uVrms would translate to 90*1.414*2 = 254uVpp. on pure sinusoidal waveforms only. Here we have a complex waveform.
Checking Google AI and it enthusiastically assures me that for noise signals (assuming Gaussian noise distribution) we may multiply the RMS value by 6.6 to get Pk-Pk.
If we try that, we get 90 * 6.6 = 594uVpp, and this is close enough to my readings on the oscilloscope.
OK, to check that, I went to my balcony where there are no external EMF sources close by, switched the DS4T252 on and set it 1mV/div.
Only this time I have chose RMS in addition to Freq and Pk-Pk measurements.
As I was guessing by now, the above claim from someone seems to be valid: My unit never went above 90uVrms in any time base.
And the FPGA/MCU must be doing a good work estimating the RMS value from the Pk-Pk readings (or vice-versa).
For my testing, please see the attached pictures.
- DS4T252_noise_floor_1mVdiv_10mS: Time base at 10mS/div, reading 1.551 MHz, 800.000 uVpp, and 88.549 Vrms.
- DS4T252_noise_floor_1mVdiv_10nS: Time base at 10nS/div, reading 18.578 MHz, 366.667 uVpp, and 77.544 Vrms.
See the advert here at 0:30 playtime:
https://www.youtube.com/watch?v=FH-htEdYTxk (https://www.youtube.com/watch?v=FH-htEdYTxk)
I'll repeat the test again tonight and see if I can catch anything like you did.
when did you bought your scope? I bought both directly from the manufacturer, the first one 15 days ago, and the second 7 days ago. Overall I'm satisfied with them, the 2M memory are really handy. My understanding is that they are still working on them, improving the firmware and correcting bugs.
Because they told me to report back bugs, improvements, etc so I'm assuming that they're working on it. can't tell you 100% that a new firmware is going to be released. We just have to wait and see.
FYI, DS Scopes cannot save and transfer captured data (only screen shots). |O
How do you know they are still working on the software? Do you think we can expect an update soon?
So there is a pretty high probability that I will update, so today I ordered my DS4T252 through their website :)
The following is a reply I received today from DreamSourcelab about one of my reports:
"Regarding the issue mentioned at the start of the email about the “Amplitude tuning” feature not responding, this feature is not implemented in the current DS4T252 firmware. We will add this function in a future firmware update."
So, my understating is that they're working on a new firmware update.
So there is a pretty high probability that I will update, so today I ordered my DS4T252 through their website :)
The following is a reply I received today from DreamSourcelab about one of my reports:
"Regarding the issue mentioned at the start of the email about the “Amplitude tuning” feature not responding, this feature is not implemented in the current DS4T252 firmware. We will add this function in a future firmware update."
So, my understating is that they're working on a new firmware update.
Hello,
I think also to order one DS4T252, seem very valuable device for in the field measurements.
Anyway I don't know if I must order it directly from Dreamsourcelab web site, or via Aliexpress store.
I'm located to France and I don't know what would be the amount of duty if ordered to them directly.
Any feedback of buyers ?
Regards.
FRex
Thanks for your feedback dcm.
I did as like you, I ordered it from their web site.
Now, time to wait..
Frex
My arrived today.
It's a great tool!
1mV maximum sensitivity!!! It's unique!
FFT and protocol decoding are very usefull!
Trigger is reliable, 2MB memory.
I'm very happy with it!
It would be very interesting to compare DS4T252 with the Zeeway DSO3D12.
Again, it's a bit sad that they didn't invest a bit more thought/effort into the trigger system. E.g. a protocol trigger or at least something like triggering on the start/or stop bit of an UART communication would have been helpful.
Also, I understand that it's not possible to store the currently measured waveform and transfer it to the PC (offline). Obviously only screenshots and "session files" (settings) can be transferred to the PC. That's also a major letdown.
I'm glad that you like it, it's an addictive little device isn't it? If you have any suggestions to improve, like new functions, Ui, bugs, etc post here.
I'm glad that you like it, it's an addictive little device isn't it? If you have any suggestions to improve, like new functions, Ui, bugs, etc post here.
Thank you for the great device!
1) So far the major concern is the waveform save function!
It would be nice to set a button shortcut for it: power+start, or power+auto, or double power. Please, consider to make shortcuts for both the waveform save and the screenshot save command.
It would be much more effective to have a binary waveform save format. CSV format is storage space consuming.
2) FFT analysis function should have ability to turn off the waveform view.
To achieve the best FFT quality it's necessary to adjust waveform to fill all the screen space. But in this case the FFT graph become hardly readable.
3) It would be nice to have basic trigger information always on screen.
The "DreamSourceLab" text is NOT what users want to see there! It's reasonable to leave your logo in the corner, but NOT the full name.
Much better would be to see the trigger level, slope and channel information near the "trig" menu entry.
4) It would be nice to make the measurement stickers less prominent.
Please, consider to add transparency and make it dim. So that the waveform would be more visible in the area.
I just wonder: most people here fancy the 50MHz version. Is this because of the 1mV/div or the price or both?I think this is because with 1mV/div sensitivity and 2Mpts storage depth ds4t252 has no competition in the sub-$100 range.
I just wonder: most people here fancy the 50MHz version. Is this because of the 1mV/div or the price or both?I think this is because with 1mV/div sensitivity and 2Mpts storage depth ds4t252 has no competition in the sub-$100 range.
But ds4t1012 price-wise is close to the entry-level 12 bit oscilloscopes, making it a hard choice.
It's just that 200MSa/s are somewhat underwhelming, and 100MSa/s in dual channel mode are pretty much bottom (Shannon-Nyquist) level for a 50MHz scope.
The DS4T1012 has three times the bandwidth but five times the sample rate. And I guess there is absolutely no other pocket scope with 1GSa/s sampling rate or is there?
I already have a proper desktop scope, I'm just toying with the idea of having something (very) portable.
But most probably I will be able to convince myself that I don't really need that anyway.
I already have a proper desktop scope, I'm just toying with the idea of having something (very) portable.
But most probably I will be able to convince myself that I don't really need that anyway.
This scope is really good at measuring differential voltages inside a circuit.
The lower the size - the higher impedance stuff you can measure. You can just connect it without a probe with a short wire.
There could be no match from mains powered or big oscilloscopes.
No currents from a mains PS,
no antena effects, no
noise picked up from a probe.
Multiply this by 1mV sensitivity!
Perfect!
I have others small cheap scopes and none work like this. My guess is this one being a true real time sample one, just my guess.
This scope is really good at measuring differential voltages inside a circuit.Sure, you can do that - with one channel - and it's still somewhat problematic. A scope running from a battery is not the same as an isolated scope.
Yes, that's high sensitivity + reliable and fast trigger + real time sampling + high acquisition rate.Well, a scope without a "reliable" trigger is not a scope. Not sure what a "fast" trigger is. A trigger is a trigger. And again, the trigger system is about as basic as can be.
Hm.
(Attachment Link)
The data sheet seems to define the frequency stability as +/- 100ppm. That would be worse than any normal XTAL and make it pointless as frequency standard.
But maybe I'm reading it the wrong way.
And still, the absolute deviation is unclear. Even a OCXO trimmer with a GPSDO has some frequency error.
Besides, "64,000MHz" could means a few hundred Hz deviation. Which still would be a pretty low deviation, but most probably not "spot on".
E.g. 64000444Hz would also be displayed as 64,000MHz and it still would be a (rather good, but not great) 7ppm deviation.
Anyway, given that they brag about using an "EPSON high-precision low-temperature drift crystal oscillator", they could have specified the time base stability/accuracy in the data sheet.
Hi, I've read the thread but I couldn't find any posts about how to open the device to replace the battery. Some people write that the enclosure is glued. Can it be opened without damaging it? After 3-5 years of use, when the battery finally dies, there may appear more interesting models and some people would prefer to buy a new oscilloscope rather than replace the battery, but still, I think many people would like to replace the battery instead of buying a new device, especially the owners of the more expensive DS4T1012 model.
And yet another question, is it worth overpaying for DS4T1012 for home and hobby use, or DS4T252 is more than enough? I've read the thread and some people write that the DS4T252 sensitivity is 1mV/DIV with hundreds mVolts of noise, so I couldn't understand what's the use of such a sensitivity with such a high level of noise, when the noise will not allow to see the little amplitude signals anyway. Does DS4T1012 also have such a noise? If it doesn't have such a noise, the 10mV/DIV of "clean" output may be even more preferable than 1mV/DIV of "dirty" output to find weak signals. Or if I don't understand something, please clarify.
One correction the noise floor on 1mV/div is around hundreds uV (micro volts) not mV.
One correction the noise floor on 1mV/div is around hundreds uV (micro volts) not mV.
When exactly 1mV/div may be useful in real life? I mean, when we deal with digital electronics, even +/- 0.2 Volts in the signal doesn't make difference in most cases, and many chips don't care of 0.8 V difference, so I'm not sure if this 1mV/div sensitivity with 50Mhz is better than 10mV/div with 150MHz, although I don't need it either :) Just want to find out what model is the most useful for its price. 200MS/s is rumored to be not enough for 2 channels. I've got Zoyi ZT-703s and it has (kind of) 280MS/s, and it also seems to be not enough for its (kind of) 50Mhz bandwidth.
I see this little device as a kind of Swiss knife.
I see this little device as a kind of Swiss knife.
So you think 200MS/s in enough for this 50Mhz device?
To open the device search on YouTube for Kerry Wong video on the DS4T1012 he show and explain how to do it.For the record: it's a destructive disassembly: since the whole thing is held together by the rubber housing which is glued to the other parts, he broke the rubber part during disassembly and then the rest fell apart.
To open the device search on YouTube for Kerry Wong video on the DS4T1012 he show and explain how to do it.For the record: it's a destructive disassembly: since the whole thing is held together by the rubber housing which is glued to the other parts, he broke the rubber part during disassembly and then the rest fell apart.
Also the battery is glued in. I.e. changing the battery is not really intended. So, after a few years, you are supposed to throw it away.
Does it have a bart simpson effect? If it does, at what frequency it starts to be noticeable?
Bart Simpson effect - when starting from some frequency the flat parts of the real signal start to resemble the hair of Bart Simpson.
Is this also known as the "gibbs phenomenon"?Looks like it is, but the wiki page about it is for geeks only :) All I know is that it is typical for cheap oscilloscopes and more expensive ones can somehow filter it out. So the question is at what freq it starts to become visible and annoying in this oscilloscope.
https://en.wikipedia.org/wiki/Gibbs_phenomenon
Bart Simpson effect - when starting from some frequency the flat parts of the real signal start to resemble the hair of Bart Simpson.
(Attachment Link)
You can't save waveforms to do measurements later. Screenshot can be saved with measurements already done at that moment. You can't import that picture to do other measurements or delete those that are already imposed on picture.
I don't know. It seems they haven't released any hardware or software for two years or so. I would be kinda surprised if there would be any more major updates.And their last github commit was May 10 2024 (over 2 years ago).
The firmware for the DS4T252 will be kept updated based on market feedback. Since the current functionality is relatively complete, the update frequency will not be too high.
Regarding the CAN protocol implementation you mentioned, we are currently developing an expansion module for DSTouch. This project aims to enable connectivity between DSTouch series devices and host computer software, allowing portable device data to be uploaded to the host computer and sharing features such as the host computer's decoder. The project is still in the development stage, and no release date has been confirmed yet.
If you are interested, you can follow our official website or send me an email later to stay updated on the project release progress.
No, only from touchscreen can be controlled. DSview is for USB oscilloscope and don't work with DSTouch scopes