That’s a great scope at such a low price. At that price I was expecting a very basic scope with limited functions. It’s not perfect, such as I would have personally preferred a slightly bigger screen to make the most out of the colour temperature scale, but at that price it’s hard to complain about it. Thanks for the review as usual Hugo.
Hi! The screen is inline with the other portable oscilloscopes in this segment, but I should tell you that it has a very good defenition and image quality. Like I said, I think it will annihilate the competition in this segment. Is really good, even if the sampling rate in 2 channels is 200MSa/s, that's what most of the competition has, with all the rest working so weel, it will be a buldozer for the competition... Zeeweii DSO2512G is closest competion and the price droped already from 99€ to 70€ on aliexpress, so this should say something. I must say that the FFT of DSO2512G it still is one of the best I've seen. But the rest, this oscilloscope surpasses in everything. Thanks for watching.
@@Igor_user The price of the DSO2512G drop a bit latelly, but even when I made the review video for the DSO25G was around 85€, I think you can find it now for near 70€. Before moving on, DSO2512G was my number one choice on this small portable oscilloscopes, still has some very strong points like the awesome FFT and the TV output. But in everything else, this is way better. I can tell you if I had both side by side today and even with the price diference, I'll go wirh the DPOX180H. More bandwith, a image so nice and clear and the color temperature is amazing. Other than that, seemed accurate enough!
Hi Hugo. In order to accurately measure bandwidth and high frequencies in general, you need to connect a coaxial cable through a 50-ohm terminator to the oscilloscope. Your generator has a 50-ohm output only. The fact that it shows high impedance doesn't change that it still has 50 ohms, it just reduces the output voltage for correction purposes. Just try it and you will see.
Hi, so, let me see if I get this right, I have always test like this to do and I want to give you guys the best info I can, so, I have my function generator configured for High-Z output and the oscilloscope is with a 1M ohm impedance on input, even so, I should use my 50Ohm terminator? I have here a P57 50Ohm, should I use even it the function generator is outputing in High-Z? Thanks for watching and sharing!
@@TechCornerTV Exactly. In such case, you use the 50-ohm option on the generator to ensure consistent amplitude readings with the scope. And then you will have a real smooth sine waveform from the generator across the entire bandwith. Here you have an example in one of Dave videos: th-cam.com/video/PPgxFd97taY/w-d-xo.html
Hmm.. Just got this one, and can't make it retain settings after power cycling... Anyone got that to work? Even probe attenuation is reset to 1x. (Also: How to see current firmware version?)
It seems they continue to update the firmware to fix the problem with the vertical lines of the square waves. So I want to ask you a question.. Do you think it’s still worth buying the new FNIRSI DPOX180H if you already have this DSO2512G? With this DSO2512G everything seems to be working properly, and I bought it but now I’m wondering if I should upgrade to the new DPOX180H because it includes better bandwidth, better resolution, possibly a better screen, and also color temperature. But I’m not sure if it’s worth it since I already have the DSO2512G. I need your advice. Thank you!!!
Hi, they fixed that issue with the vertical lines on the square waves recently with the latest firmware update. If you have the DSO2512G, you are well served. But if you manage to sell that one, I do recomend this one. Note, the FFT is better on the DSO2512G, so if you use that feature a lot, keep it. Thanks for watching!
You should be able to use a microcontroller or Raspberry pi to generate a 50% square wave (PWM) at higher bandwidths. It can be just enough to do a rough characterisation of the bandwidth specifications. Even you can see how the aliasing works, which is interesting to know for a piece of equipment. What are the specifications for the sig-gen? bandwidth? Vpp / Voffset ability?
Hi, sometimes you got to sync outside the box, the raspberrypi idea is a pretty good one. I already took a look and there is already people that successed with that. For testing oscilloscopes, I normally use a sine wave with 1Vpp signal and the bandwidht changes up to the max of the oscilloscope to see if the Vpp drops under the 707mV +/- (-3dB). I will check this better asap. Thanks for sharing!
Thanks for the review. Can't we capture a triggered event with these handheld oscilloscopes? I wanted to ask since you never did it in handheld reviews. For example charging of a capacitor in 50-100ms and then seeing the captured graph.
Hi, you're right! I have to add that to my "review items" list that I use when reviewing a device. Sometimes I just forget stuff while recording, sometimes I ignore it because the video is already too long, other times is just I never though about it, so thanks for bring it up 😁 and for watching!
Excelente trabalho, ainda não tinha visto o teu canal, é pena que este gênero de informação e conteúdo seja tao "invisível" por parte do youtube. espero que tenhas muito sucesso e que o teu canal e os teus videos sejam mais visíveis. Estou intrigado em comprar um GC medidor de reação nuclear. gostava de ter a tua ideia pessoal e não a ideia "geral"
Olá, muito obrigado pelo apoio! Pelo que li de comentários de espetadores aqui do canal que se deram ao trabalho de escrever explicações bem completas, este aparelho dá para medir radiação, no entanto, eles consideram que é um aparelho amador. Como disse no vídeo, radiação não é uma área que tenha conhecimento. Ele é muito fácil de usar e pareceu-me bem, falta uma importante que é o beep conforme vai apanhando particulas no sensor, aquele som habitual que vemos nos filmes quando eles estão a utilizar um detetor de radiações, a minha opinião é que alguém não profissional que não esteja em ambientes de radiação a sério, isto é mais do que suficiente. Abraço e obrigado por assistires.
Which one would be better for portable use? This one or Zeewei DSO2512g? Lets say 15MHz max. Mostly for 'single' triggering mode. Which one will be more reliable? No need for two channels but seems single channel scopes are not much cheaper so no sense to consider them. For higher demands i do already have Siglent SDS 1202 X-E, so my question is about portable use only..
Hi! In portable I like to divide in single oscilloscopes and multi function like with multimeter. For single scopes, this one and the DSO2512G are the top of the table. Both have strong and week points, for example on this one FFT is a weak point when compared with the FFT of the DSO2512G. On the other end, this one has more bandwidth and the phostor technology that for me is the desive factor. Both are very easy to work and you'll be ok with any of them. Something that I keep forgeting is to to the simple triggering test... I have to a video with that! Not really compared yet that feature. Thanks for watching!
Didn't show 5mV sensitivity test. We did not test the correctness of the trigger modes: automatic / normal / single. This is more important than showing saving images in the browser. They did not show the internal structure of the oscilloscope, which chips are used.
Hi, yes I missed some bits, the trigger part I forgot, sorry for that, but the teardown it will increase even more this already long video, so I thought making a new video with firmware upgrade, teardown and a few other points the viewers mentioned. Thanks for you comment and for watching!
Hi, the impedance of the input is 1M ohm, the signal generator was with High Z so I think we are safe on the readings, but I am open to different opinions and assume that you may be right, I am learning everyday new stuff, so there might be something here that I missed. Thanks for watching.
@@TechCornerTV No, that's not correct. Gen's output impedance is 50 Ohm, cable impedance is 50 Ohm (supposed to be), and input impedance must be 50 Ohm too. That's why at 100MHz You have 1.11V pk-pk. Gen's "High Z" means that it just don't double the selected (displayed) voltage on it's output for matching readings at the scope input w/o termination (that's ok for audio frequencies), but do nothing with termination itself on any cable side so can't affect signal reflections etc. Also mentioned at 19:42 waveforms on the channels are not equal, is it BWlimit enabled at blue channel? And with cursors always V1=V2. Too buggy now.
I just bought one had it for a week now and I love it to me it does everything I need for a portable scope and more. I don’t need it for the full bandwidth so it’s just extra power for me. It so handy you won’t regret buying it I don’t have anything negative to say except if you really need the best precision and the highest frequency resolution then go out and spend $1000 on a bench scope because that’s not the market this scope was made for.
Hi, I totally agree with you, it is a really nice device for the price. It's the only one I know in small form factor that has phosphor technology and as an oscilloscope, it is reliable. Thanks for watching.
Hello! Sorry for late reply, house move and vacations. Hmmm.. for this one I don't have yet a new review scheduled, but I will take note of this and try to show also a possible new review. Thanks for watching!
Hello! Sorry for late reply, house move and vacations. I will check it out, I ordered some 200Mhz and more. Let's see if I can do some work with then in testing. Thanks for the suggestion and for watching!
The device is great and I was about to buy it but there seems to be a very serious problem with the display of square and step waveforms. I have seen in other reviews that when trying to display a square or step waveform, the vertical rising lines disappear and are not displayed. Clearly this is a problem because it even fails on complex waveforms where there are vertical lines that don't seem to show up on the screen. do you know if fnirsi is aware of this major problem. do you know if they have corrected it in a firmware update? At the moment, I'm not going to buy because this display problem makes it unusable in several scenarios, especially in digital electronics
HI, I know Daniel the author of the video you're talking about, we speak reguraly on whatsapp, he knows way more than I do in electronics, but I don't agree with you or with him on this. I saw this behaviour on other oscilloscopes, like my Micsig STO1004 and others, even on my Rigol MSO2102A. When the rise is so accentuated, sometimes it kind of disapears the vertical line. This happens normally in lower bandwidths where the capacity os processing of the oscilloscope is higher, since it can take more samples and register correctly the rise, when the bandwidth is higher the difference between values in the samples, will differ more and you will start to get the inclination on the edge of the line and it will not be exactly vertical or can be even inclined, it depends on the speed of the signal and the capacity of the oscilloscope. Well this is just my opinion, I've seen this on devices way more expensive than this small oscilloscope, the fact it has only 2.8" screen will not help also, since it will make everything smaller, so the vertical line in that case will seems like it is not there... but again, just my 5 cents, I may wrong, as I told Daniel knows way more than me, so maybe is right, I don't think so, but I accept that I might be wrong in my opinion. Thanks for watching.
@@TechCornerTV that you mention may be true, however, it is quite striking that in other models clearly inferior in performance and even with smaller screens I can not see this problem because the vertical lines are always displayed correctly, at any frequency and with any waveform, and the problem with the square waves disappears and you can see perfect vertical lines up. Just to give you a concrete example of another oscilloscope that was reviewed in the channel: DSO2512G. I bought and used this oscilloscope and I can assure you that the problem does not exist because I can always see the vertical rising lines. It is unacceptable that more expensive and better performing scopes do have this problem. I don't doubt that it happens in more models, but there are many portable digital models that don't have this problem. Maybe it's the display technology, I don't know, but maybe this problem should be reported to the manufacturer to try to fix it or at least minimise it with a firmware update so that this oscilloscope displays the rising vertical lines as perfectly as the modest DSO2512G does.
Is it really a bug, or is what you expect just a feature of standard digital scopes (not "phosphor") ? Because i have an old HP 100MHz analog scope and it does the same as this fnirsi when displaying near vertical transitions.
@@recursoseninternet if you see vertical lines on very short rise times, please be aware this might be a software correction, like when you force draw a line to connect a discontinuity. *not* displaying a vertical line is the correct way an oscilloscope should work, when the rise time is exceedingly small.
Hi, agree! MicroHDMI would be a dream... but as far as I know, Zeeweii is the only one that has some kind of export image feature. Thanks for watching!
Hi, seems good, the permance in overall is really good. I really sorry just not being able to go up to 180Mhz to see the bandwidht at that level, but I«, working on it. Thanks for watching.
Gave up watching your video because I could barely read the buttons, let alone anything on the screen! I see there are a bunch of 'Thumbs-Down' probably for the same reason...
Hi, thanks for the feedback and let me say there is always room for improvement. But can you explain better what was the problem for reading the buttons? Not focused? Not enough time? Thanks for watching.
@@TechCornerTV , if I got right up on the monitor, I could read the buttons but I couldn’t read anything you were doing on the screen. Go back and watch the first part of your video without sitting super close to your monitor and try it…
Hi, I never did auto repair but, if you want something really appropriate I will go with Micsig, they have ones really good with specific functions for auto testing, but at a much higher price. If you now what you're doing, I think with this one, you will have a good ratio between price and quality. But, no special functions for auto. Thanks for watching.
I would love to get that for some amateur hobbies but I don’t know how they will perform at lower frequencies. I’m interested more in the audio spectrum so what do you people think? Good energy for the 20 hz 20 kHz range
Hi, the video was already so long that I decided that will not add that. Maybe in a next video with the firmware upgrade procedure. Thanks for watching,
I'm impressed with all of the functions, but that screen is simply too tiny for me. I'd be willing to pay more for a larger screen. But that inch and a half by 2 inches or so is simply unusable for all that information. If it had a USB to PC interface or a bluetooth to cellphone interface I'd go for it.
head mounted magnifying glasses can do wonders in this respect, @@TechCornerTV They are excellent for soldering tiny components are well as for reading tiny displays at a close distance.
hi hugo . nice review . i actually had to download and take my time to watch . good bandwidth with a lot of features like the XY mode , FFT and the amazing inbuilt Gen , better than their previous ones . anyway i would like you to campare it with the owon HDS272s since the prisez and specs are almost identical . and recomend which is better .
HI Andy, I have the Hantek, Owon & Hanmatek in my shopping basket for months to do a review series like I did with the +=100Mhz under 100€ series, but I spend a lot of money on that series and I didn't get it back yet, and only the HDS2102S is 250€... 😬 Owon seems not be releasing any more devices to us, so I have to pay. Right now that review is on hold, at least here in the channel. I know you mentioned the HDS272S but for comparing, at least on my point of view, you got to compare 2 bandwidths as nearest as possible. Also the S version has function generator, so HDS2202S is the one I want to test. Maybe in a near future... as always thank you for watching and your comment!
@@andyweekend4096 Although it is a bit crazy, the OWON HD2202S is basically double the price of this FNIRSI. I believe it has better banner spec, proper 200Mhz bandwidth, proper 500MSa/s, it has a 'proper' multimeter as well, and it has bigger screen... but can any of that be worth literally double the price? If all you want is really really good portable DSO and you literally don't have a budget, the OWON might be worth it. Otherwise, you'd be waiting to see if any deal-breaker problems arise in this FNRISI, otherwise its 90% of OWON but at 50% cost.
@@TechCornerTV my idea is that every such device has firmware installed, and to see what is particular version we usually need to press some keys combinations.
Olá! Eu tenho o canal em português, mas tive de parar os vídeos nesse canal porque eu mal consigo por 1 por semana neste canal, o principal. Eu adorava conseguir fazer novamente os vídeos em português, mas na realidade isto é um hobby e maior parte dos vídeos são filmados depois da meia-noite até às 4 ou 5ª da manhã. Fazer isto duas vezes e editar duas vezes, é demasiado puxado. Acredita, não é por falta de vontade, é mesmo porque não dá. Aqui sempre podes recorrer às legendas, é o melhor que se arranja. Obrigado por assistires.
Hi, they are different products, Owon HDS2102S is a scopemeter and this one is just an oscilloscope, but in terms of screen, in my opinion it is, but obviously misses the multimeter functions. It will be more fair compare it to the Tooltop ET829 that is in the same category. Thanks for watching!
Hi again, first please consider this comment, as reaching and brainstorming, since most of my viewers know more than me and I'm ok with it. I'm here to learn and share the few things I know. After answering your comment, I went back and checked the oscilloscope and the function generator. I normally use High Z in the function generator, because it outputs the real voltage and not the double. Since in the specs of the oscilloscope the impedance is 1M ohm and not 50 ohms, I think the equipments were setup correctly, can you confirm? On this toipic I like a lot of this video from Keysight ( th-cam.com/video/e446nQ9cXdc/w-d-xo.html ) so, there can be factors that change the way I should setup the impedance. Thanks for comment, it created here the chance to learn a bit more 😁
@@TechCornerTV At higher frequencies probably using 50ohm method is better, but if you have signal generator in high Z mode with high impedance DSO, then that should also give proper results.
Hi, great suggestion and is on my todo list. It is a very long video to do and it will take some time, but I manage to lower the pile of devices I have to review in here still waiting, I will do this for sure. Thanks for watching.
Olá Marcelo, tens razão, esqueci-me, mas acho que ainda vou ter que fazer um seguimento a esta review, ficaram algumas coisas por falar que os espetadore tem mencionado. Obrigado por assistires!
Hello, in terms of portable oscilloscopes this one jointly with with Zeeweii DSO2512G are my prefered oscilloscopes. For sure this will work for SMPS repair. Thanks for watching.
Olá, tudo o que tenho que fui eu a comprar, comprei pela internet. Mesmo o meu equipamento da Rigol, Siglent, etc. Estes equipamentos de "marca" mais estabelecida, comprei em lojas na europa. As coisas mais pequenas mandei vir do eBay ou do AliExpress. Como em tudo há que ter cuidado, regra número um, quando a oferta é boa demais para ser verdade, é por que normalmente é isso mesmo 😁 Eu só compro com pagamento Paypal. Tem um periodo de cobertura de 6 meses a seguir à compra em que se algo correr mal, podes abrir um caso no Paypal e eles ajudam-te. Uso o paypal para mais de 20 anos e já me ajudou muitas vezes. Mas no geral a resposta à pergunta é, sim é seguro. Compra em sites confiáveis eBay, Amazon, AliExpress e paga sempre com Paypal. Por falar nisso acrescentei um coupão de desconto de $10 à descrição do vídeo, se vais comprar aproveita e usa o link de afiliado pf 😎 Obrigado por assistires.
Hi! Both are wonderfull units. I like a lot the DSO2512G FFT, works very well. This one the phosphor technology with the color temperature, gives you awesome signal image. Thanks for watching!
Olá Marcelo, se estiveres em frequências altas e o sinal for realmente quadrado (ângulos de 90º), realmente são tão finas que não aparecem. Na minha ótica, nada que seja problemático no geral de utilização do osciloscópio. Obrigado por assistires.
Hi, in my opinion, mostly yes. The only thing DSO2512G is better is in FFT and the TV output is kind of cool 😁 All the rest, DPOX180X FTW! Thanks for watching!
Hello, the video was too long already. I will do another video with the firmware upgrade, the teardown and a few other topics soon. Thanks for watching.
I looked this up and it’s definitely 500MS/s in single channel mode. However, I can’t find anything about it’s sample rate when running both channels at the same time. I presume it’s 250MS/s like most scopes would be though.
Hi, I can only tell what they announce, nothing yet on the sampling rate while running 2 channels. I received it Friday afternoon and worked trought night and yesterday to have the video ready today, so didn't do much research. But I assume, by experience, that if they announce 500MSa/s sampling rate and don't add "per channel", is because it is divided for both channels. Thanks for watching!
I feel like they are artificially increasing the measured voltage at higher frequencies to make the bandwidth look higher than what it really is.
Hi, it might be, but the overall feeling on the product is good, so can't tell for sure. Thanks for watching!
@@TechCornerTVCould you test bandwidth with fnirsi probes , seems that on 100mhz we will see approx 1 volt..
That’s a great scope at such a low price. At that price I was expecting a very basic scope with limited functions. It’s not perfect, such as I would have personally preferred a slightly bigger screen to make the most out of the colour temperature scale, but at that price it’s hard to complain about it. Thanks for the review as usual Hugo.
Hi! The screen is inline with the other portable oscilloscopes in this segment, but I should tell you that it has a very good defenition and image quality. Like I said, I think it will annihilate the competition in this segment. Is really good, even if the sampling rate in 2 channels is 200MSa/s, that's what most of the competition has, with all the rest working so weel, it will be a buldozer for the competition... Zeeweii DSO2512G is closest competion and the price droped already from 99€ to 70€ on aliexpress, so this should say something. I must say that the FFT of DSO2512G it still is one of the best I've seen. But the rest, this oscilloscope surpasses in everything. Thanks for watching.
КhuongaTheBounga, The price is not so small. dso2512g has almost the same functionality and is cheaper.
@@Igor_user The price of the DSO2512G drop a bit latelly, but even when I made the review video for the DSO25G was around 85€, I think you can find it now for near 70€. Before moving on, DSO2512G was my number one choice on this small portable oscilloscopes, still has some very strong points like the awesome FFT and the TV output. But in everything else, this is way better. I can tell you if I had both side by side today and even with the price diference, I'll go wirh the DPOX180H. More bandwith, a image so nice and clear and the color temperature is amazing. Other than that, seemed accurate enough!
Hi Hugo. In order to accurately measure bandwidth and high frequencies in general, you need to connect a coaxial cable through a 50-ohm terminator to the oscilloscope. Your generator has a 50-ohm output only. The fact that it shows high impedance doesn't change that it still has 50 ohms, it just reduces the output voltage for correction purposes. Just try it and you will see.
I'm waiting for your test.
Hi, so, let me see if I get this right, I have always test like this to do and I want to give you guys the best info I can, so, I have my function generator configured for High-Z output and the oscilloscope is with a 1M ohm impedance on input, even so, I should use my 50Ohm terminator? I have here a P57 50Ohm, should I use even it the function generator is outputing in High-Z? Thanks for watching and sharing!
@@TechCornerTV Exactly. In such case, you use the 50-ohm option on the generator to ensure consistent amplitude readings with the scope. And then you will have a real smooth sine waveform from the generator across the entire bandwith.
Here you have an example in one of Dave videos: th-cam.com/video/PPgxFd97taY/w-d-xo.html
Hmm.. Just got this one, and can't make it retain settings after power cycling... Anyone got that to work? Even probe attenuation is reset to 1x.
(Also: How to see current firmware version?)
Hi, that is a weird thing. I will test my and if also happens the same I will notify you. Thanks for watching.
@@TechCornerTV This seems to turn this from a useful tool into a toy or teaching device. So many features, and missing something this basic...
It seems they continue to update the firmware to fix the problem with the vertical lines of the square waves. So I want to ask you a question..
Do you think it’s still worth buying the new FNIRSI DPOX180H if you already have this DSO2512G? With this DSO2512G everything seems to be working properly, and I bought it but now I’m wondering if I should upgrade to the new DPOX180H because it includes better bandwidth, better resolution, possibly a better screen, and also color temperature. But I’m not sure if it’s worth it since I already have the DSO2512G. I need your advice. Thank you!!!
Hi, they fixed that issue with the vertical lines on the square waves recently with the latest firmware update. If you have the DSO2512G, you are well served. But if you manage to sell that one, I do recomend this one. Note, the FFT is better on the DSO2512G, so if you use that feature a lot, keep it. Thanks for watching!
Hi Corner,
Would like to ask you, would you choose this model over the FNRISI 1014d? I would appreciate your opinion, thanks.
You should be able to use a microcontroller or Raspberry pi to generate a 50% square wave (PWM) at higher bandwidths. It can be just enough to do a rough characterisation of the bandwidth specifications. Even you can see how the aliasing works, which is interesting to know for a piece of equipment.
What are the specifications for the sig-gen? bandwidth? Vpp / Voffset ability?
Hi, sometimes you got to sync outside the box, the raspberrypi idea is a pretty good one. I already took a look and there is already people that successed with that. For testing oscilloscopes, I normally use a sine wave with 1Vpp signal and the bandwidht changes up to the max of the oscilloscope to see if the Vpp drops under the 707mV +/- (-3dB). I will check this better asap. Thanks for sharing!
Thanks for the review. Can't we capture a triggered event with these handheld oscilloscopes? I wanted to ask since you never did it in handheld reviews. For example charging of a capacitor in 50-100ms and then seeing the captured graph.
Hi, you're right! I have to add that to my "review items" list that I use when reviewing a device. Sometimes I just forget stuff while recording, sometimes I ignore it because the video is already too long, other times is just I never though about it, so thanks for bring it up 😁 and for watching!
@@TechCornerTV thank you.) there's no problem about long videos since you already use captions. I enjoy watching whole video.
This VS 1013D which is better to buy? Because This is newer.
Hi Mr TechCorner 🙂
I would also like to have the Osci for my videos :-) but the price has gone up :-(
Ps.: I slap the Like Button!
Hi, ahahahaha, now I get it all the hands... nice touch! Thanks for watching
@@TechCornerTV one more
Excelente trabalho, ainda não tinha visto o teu canal, é pena que este gênero de informação e conteúdo seja tao "invisível" por parte do youtube. espero que tenhas muito sucesso e que o teu canal e os teus videos sejam mais visíveis.
Estou intrigado em comprar um GC medidor de reação nuclear. gostava de ter a tua ideia pessoal e não a ideia "geral"
Olá, muito obrigado pelo apoio! Pelo que li de comentários de espetadores aqui do canal que se deram ao trabalho de escrever explicações bem completas, este aparelho dá para medir radiação, no entanto, eles consideram que é um aparelho amador. Como disse no vídeo, radiação não é uma área que tenha conhecimento. Ele é muito fácil de usar e pareceu-me bem, falta uma importante que é o beep conforme vai apanhando particulas no sensor, aquele som habitual que vemos nos filmes quando eles estão a utilizar um detetor de radiações, a minha opinião é que alguém não profissional que não esteja em ambientes de radiação a sério, isto é mais do que suficiente. Abraço e obrigado por assistires.
Thank you for the excellent, detailed review of this interesting handheld digital oscilloscope.
Hello, it was my pleasure, thank you for watching!
Which one would be better for portable use? This one or Zeewei DSO2512g? Lets say 15MHz max. Mostly for 'single' triggering mode. Which one will be more reliable? No need for two channels but seems single channel scopes are not much cheaper so no sense to consider them. For higher demands i do already have Siglent SDS 1202 X-E, so my question is about portable use only..
Hi! In portable I like to divide in single oscilloscopes and multi function like with multimeter. For single scopes, this one and the DSO2512G are the top of the table. Both have strong and week points, for example on this one FFT is a weak point when compared with the FFT of the DSO2512G. On the other end, this one has more bandwidth and the phostor technology that for me is the desive factor. Both are very easy to work and you'll be ok with any of them. Something that I keep forgeting is to to the simple triggering test... I have to a video with that! Not really compared yet that feature. Thanks for watching!
هل يوجد تحديث firmware update لحل مشكله عدم ظهور الخط الراسي ؟
Hi, I don't know, I just do equipment review, I'm not part of the FNIRSI support. Thanks for watching!
Didn't show 5mV sensitivity test. We did not test the correctness of the trigger modes: automatic / normal / single. This is more important than showing saving images in the browser. They did not show the internal structure of the oscilloscope, which chips are used.
Hi, yes I missed some bits, the trigger part I forgot, sorry for that, but the teardown it will increase even more this already long video, so I thought making a new video with firmware upgrade, teardown and a few other points the viewers mentioned. Thanks for you comment and for watching!
I am waiting new tests of this device.
Where is 50 Ohm termination? Without it bandwidth test just waste of time.
Hi, the impedance of the input is 1M ohm, the signal generator was with High Z so I think we are safe on the readings, but I am open to different opinions and assume that you may be right, I am learning everyday new stuff, so there might be something here that I missed. Thanks for watching.
@@TechCornerTV No, that's not correct.
Gen's output impedance is 50 Ohm, cable impedance is 50 Ohm (supposed to be), and input impedance must be 50 Ohm too. That's why at 100MHz You have 1.11V pk-pk.
Gen's "High Z" means that it just don't double the selected (displayed) voltage on it's output for matching readings at the scope input w/o termination (that's ok for audio frequencies), but do nothing with termination itself on any cable side so can't affect signal reflections etc.
Also mentioned at 19:42 waveforms on the channels are not equal, is it BWlimit enabled at blue channel? And with cursors always V1=V2. Too buggy now.
I just bought one had it for a week now and I love it to me it does everything I need for a portable scope and more. I don’t need it for the full bandwidth so it’s just extra power for me. It so handy you won’t regret buying it I don’t have anything negative to say except if you really need the best precision and the highest frequency resolution then go out and spend $1000 on a bench scope because that’s not the market this scope was made for.
Hi, I totally agree with you, it is a really nice device for the price. It's the only one I know in small form factor that has phosphor technology and as an oscilloscope, it is reliable. Thanks for watching.
Thanks very much for your video. Can you please show how to capture rising edge and falling edge using this oscilloscope? I tried but couldn't success
Hello! Sorry for late reply, house move and vacations. Hmmm.. for this one I don't have yet a new review scheduled, but I will take note of this and try to show also a possible new review. Thanks for watching!
Maybe you can use a full bridge rectifier to double the frequency of the function generator? You could go as high as 200 MHz
Hi Gonzalo, that's an interesting idea.... I will research on that! Thanks for watching.
Maybe you will do an additional review.
To check the high frequency, an fast rise time pulser is very helpful.
Try it.
Hello! Sorry for late reply, house move and vacations. I will check it out, I ordered some 200Mhz and more. Let's see if I can do some work with then in testing. Thanks for the suggestion and for watching!
The device is great and I was about to buy it but there seems to be a very serious problem with the display of square and step waveforms. I have seen in other reviews that when trying to display a square or step waveform, the vertical rising lines disappear and are not displayed. Clearly this is a problem because it even fails on complex waveforms where there are vertical lines that don't seem to show up on the screen. do you know if fnirsi is aware of this major problem. do you know if they have corrected it in a firmware update? At the moment, I'm not going to buy because this display problem makes it unusable in several scenarios, especially in digital electronics
HI, I know Daniel the author of the video you're talking about, we speak reguraly on whatsapp, he knows way more than I do in electronics, but I don't agree with you or with him on this. I saw this behaviour on other oscilloscopes, like my Micsig STO1004 and others, even on my Rigol MSO2102A. When the rise is so accentuated, sometimes it kind of disapears the vertical line. This happens normally in lower bandwidths where the capacity os processing of the oscilloscope is higher, since it can take more samples and register correctly the rise, when the bandwidth is higher the difference between values in the samples, will differ more and you will start to get the inclination on the edge of the line and it will not be exactly vertical or can be even inclined, it depends on the speed of the signal and the capacity of the oscilloscope. Well this is just my opinion, I've seen this on devices way more expensive than this small oscilloscope, the fact it has only 2.8" screen will not help also, since it will make everything smaller, so the vertical line in that case will seems like it is not there... but again, just my 5 cents, I may wrong, as I told Daniel knows way more than me, so maybe is right, I don't think so, but I accept that I might be wrong in my opinion. Thanks for watching.
@@TechCornerTV that you mention may be true, however, it is quite striking that in other models clearly inferior in performance and even with smaller screens I can not see this problem because the vertical lines are always displayed correctly, at any frequency and with any waveform, and the problem with the square waves disappears and you can see perfect vertical lines up. Just to give you a concrete example of another oscilloscope that was reviewed in the channel: DSO2512G. I bought and used this oscilloscope and I can assure you that the problem does not exist because I can always see the vertical rising lines. It is unacceptable that more expensive and better performing scopes do have this problem. I don't doubt that it happens in more models, but there are many portable digital models that don't have this problem. Maybe it's the display technology, I don't know, but maybe this problem should be reported to the manufacturer to try to fix it or at least minimise it with a firmware update so that this oscilloscope displays the rising vertical lines as perfectly as the modest DSO2512G does.
Is it really a bug, or is what you expect just a feature of standard digital scopes (not "phosphor") ? Because i have an old HP 100MHz analog scope and it does the same as this fnirsi when displaying near vertical transitions.
@@recursoseninternet if you see vertical lines on very short rise times, please be aware this might be a software correction, like when you force draw a line to connect a discontinuity.
*not* displaying a vertical line is the correct way an oscilloscope should work, when the rise time is exceedingly small.
If only it had output to bigger screen of any kind...
Hi, agree! MicroHDMI would be a dream... but as far as I know, Zeeweii is the only one that has some kind of export image feature. Thanks for watching!
@@TechCornerTV yeah maybe we can dream on next model with some usb-c or hdmi you can push whatever through those.
how about the display speed per time interval 10ms - 500ms?
Hi, seems good, the permance in overall is really good. I really sorry just not being able to go up to 180Mhz to see the bandwidht at that level, but I«, working on it. Thanks for watching.
Gave up watching your video because I could barely read the buttons, let alone anything on the screen!
I see there are a bunch of 'Thumbs-Down' probably for the same reason...
Hi, thanks for the feedback and let me say there is always room for improvement. But can you explain better what was the problem for reading the buttons? Not focused? Not enough time? Thanks for watching.
@@TechCornerTV , if I got right up on the monitor, I could read the buttons but I couldn’t read anything you were doing on the screen.
Go back and watch the first part of your video without sitting super close to your monitor and try it…
is this goof for automotive? what would you other choose cheaper or more expensive?
Hi, I never did auto repair but, if you want something really appropriate I will go with Micsig, they have ones really good with specific functions for auto testing, but at a much higher price. If you now what you're doing, I think with this one, you will have a good ratio between price and quality. But, no special functions for auto. Thanks for watching.
I would love to get that for some amateur hobbies but I don’t know how they will perform at lower frequencies. I’m interested more in the audio spectrum so what do you people think? Good energy for the 20 hz 20 kHz range
Hi, the problem normally is the higher frequencies. Lower frequencies like the ones you mentioned, are well processed. Thanls for watching.
@@TechCornerTV thank you for the beautiful review! Keep it up!
Tear down! What’s inside?
Hi, the video was already so long that I decided that will not add that. Maybe in a next video with the firmware upgrade procedure. Thanks for watching,
Dear Sir, Can't we check square wave forms from this ? I heard some say that does not display square wave forms. Please tell me?
Hi, the latest firmware upgrade fix that issue. Thanks for watching!
Thanks. I did it. now works fine@@TechCornerTV
I'm impressed with all of the functions, but that screen is simply too tiny for me. I'd be willing to pay more for a larger screen. But that inch and a half by 2 inches or so is simply unusable for all that information. If it had a USB to PC interface or a bluetooth to cellphone interface I'd go for it.
Hi John, totally get it. For me is also a bit hard to use, not a device problem, it's the age... :) thanks for watching!
head mounted magnifying glasses can do wonders in this respect, @@TechCornerTV
They are excellent for soldering tiny components are well as for reading tiny displays at a close distance.
Can you use the oscilloscope and function generator at the same time?
Hi, yes, I think so... to be honest I only tested with the square wave... got to test it again. Thanks for watching
What camera did you record with and what quality and fps?
Hi Brandon, on the workbench I use two 4K 30fps Logitech Brio cameras. Thanks for watching.
hi hugo . nice review . i actually had to download and take my time to watch . good bandwidth with a lot of features like the XY mode , FFT and the amazing inbuilt Gen , better than their previous ones . anyway i would like you to campare it with the owon HDS272s since the prisez and specs are almost identical . and recomend which is better .
HI Andy, I have the Hantek, Owon & Hanmatek in my shopping basket for months to do a review series like I did with the +=100Mhz under 100€ series, but I spend a lot of money on that series and I didn't get it back yet, and only the HDS2102S is 250€... 😬 Owon seems not be releasing any more devices to us, so I have to pay. Right now that review is on hold, at least here in the channel. I know you mentioned the HDS272S but for comparing, at least on my point of view, you got to compare 2 bandwidths as nearest as possible. Also the S version has function generator, so HDS2202S is the one I want to test. Maybe in a near future... as always thank you for watching and your comment!
@@TechCornerTV thank for the reply . waiting for the next video
@@andyweekend4096 Although it is a bit crazy, the OWON HD2202S is basically double the price of this FNIRSI. I believe it has better banner spec, proper 200Mhz bandwidth, proper 500MSa/s, it has a 'proper' multimeter as well, and it has bigger screen... but can any of that be worth literally double the price? If all you want is really really good portable DSO and you literally don't have a budget, the OWON might be worth it. Otherwise, you'd be waiting to see if any deal-breaker problems arise in this FNRISI, otherwise its 90% of OWON but at 50% cost.
@@ivolol hi thanks for the info
@@ivolol Owon HDS2202S isn't 500Msa/s it's 1GSa/s
how to check on the device current running firmware version, and may be manufacture date and serial number?
Hi, sorry, I didn't undestood your question... checking current running firmware version? Thanks for watching.
@@TechCornerTV my idea is that every such device has firmware installed, and to see what is particular version we usually need to press some keys combinations.
Someone knows how many trigger modes?
Hi, c'mon... i talked about that in the video 😁 but it has 3 modes, Auto, Normal & Single! Thanks for watching!
у вас отображается вертикальная линия? или это дефект прибора?
Hello, yes in low frequencies when you have a perfect 90º square wave, you got the sensation that the vertical line is not there. Thanks for watching.
Olá! Quando sai o teste de avaliação em idioma português
Olá! Eu tenho o canal em português, mas tive de parar os vídeos nesse canal porque eu mal consigo por 1 por semana neste canal, o principal. Eu adorava conseguir fazer novamente os vídeos em português, mas na realidade isto é um hobby e maior parte dos vídeos são filmados depois da meia-noite até às 4 ou 5ª da manhã. Fazer isto duas vezes e editar duas vezes, é demasiado puxado. Acredita, não é por falta de vontade, é mesmo porque não dá. Aqui sempre podes recorrer às legendas, é o melhor que se arranja. Obrigado por assistires.
Good Osciloscope. Thanks!
Hi. You're welcome! Glad you licked. Thanks for watching!
Hi. Is it better than owon 2102(s)?
Hi, they are different products, Owon HDS2102S is a scopemeter and this one is just an oscilloscope, but in terms of screen, in my opinion it is, but obviously misses the multimeter functions. It will be more fair compare it to the Tooltop ET829 that is in the same category. Thanks for watching!
For your measurements the input impedance should match your generator. Terminate at 50 ohms
Hi, thanks for the tip and for watching!
Hi again, first please consider this comment, as reaching and brainstorming, since most of my viewers know more than me and I'm ok with it. I'm here to learn and share the few things I know. After answering your comment, I went back and checked the oscilloscope and the function generator. I normally use High Z in the function generator, because it outputs the real voltage and not the double. Since in the specs of the oscilloscope the impedance is 1M ohm and not 50 ohms, I think the equipments were setup correctly, can you confirm? On this toipic I like a lot of this video from Keysight ( th-cam.com/video/e446nQ9cXdc/w-d-xo.html ) so, there can be factors that change the way I should setup the impedance. Thanks for comment, it created here the chance to learn a bit more 😁
@@TechCornerTV Hi!
This video might also be helpful in this context.
th-cam.com/video/g_jxh0Qe_FY/w-d-xo.html
@@TechCornerTV At higher frequencies probably using 50ohm method is better, but if you have signal generator in high Z mode with high impedance DSO, then that should also give proper results.
Is it suitable for cell phone repair?
Hello, I believe so. You'll have a very nice bandwidth for that. Thanks for watching!
Wow thats a nice one ^^.
Hi, glad you like it! Thanks for watching!
That is a beautiful looking 180Mhz oscilloscope. 😎 Thank you.
Hi. Glad you like it! Thanks you for watching.
It's probably more realistically a 100MHZ. Anything higher and it gets a bit wonky but still somewhat usable. Nonetheless, a great scope.
Oi amigo , estou na dúvida em comprar .esse modelo do seu vídeo ou o dso2512g!!
Olá Joaquim, entre os dois que indicaste, eu prefiro este. Abraço e obrigado por assistires.
Muito obrigado!!
I watched your lots of handheld oscilloscope videos. If you can make comparison video about those oscilloscopes. Thank you for sharing knowledge ❤
Hi, great suggestion and is on my todo list. It is a very long video to do and it will take some time, but I manage to lower the pile of devices I have to review in here still waiting, I will do this for sure. Thanks for watching.
Faltou medir as voltagens nas escalas baixas🥴
Olá Marcelo, tens razão, esqueci-me, mas acho que ainda vou ter que fazer um seguimento a esta review, ficaram algumas coisas por falar que os espetadore tem mencionado. Obrigado por assistires!
Hi will this work for repairing smps power supplies? Is there another portable oscilloscope you could recommend for SMPS repair?
Hello, in terms of portable oscilloscopes this one jointly with with Zeeweii DSO2512G are my prefered oscilloscopes. For sure this will work for SMPS repair. Thanks for watching.
What is the battery life like ?
HI, didn't test it to the maximum, but I had it on for 4 hours while recording without any issues. Thanks for watching.
holly 😉 red dwarf (9:00)
Hi 😁 Thanks for watching!
Qual vc me indica comprar??
Olá novamente, respondido, em comprava este!
Comprar instrumentos de teste pela Internet é confiável?
Olá, tudo o que tenho que fui eu a comprar, comprei pela internet. Mesmo o meu equipamento da Rigol, Siglent, etc. Estes equipamentos de "marca" mais estabelecida, comprei em lojas na europa. As coisas mais pequenas mandei vir do eBay ou do AliExpress. Como em tudo há que ter cuidado, regra número um, quando a oferta é boa demais para ser verdade, é por que normalmente é isso mesmo 😁 Eu só compro com pagamento Paypal. Tem um periodo de cobertura de 6 meses a seguir à compra em que se algo correr mal, podes abrir um caso no Paypal e eles ajudam-te. Uso o paypal para mais de 20 anos e já me ajudou muitas vezes. Mas no geral a resposta à pergunta é, sim é seguro. Compra em sites confiáveis eBay, Amazon, AliExpress e paga sempre com Paypal. Por falar nisso acrescentei um coupão de desconto de $10 à descrição do vídeo, se vais comprar aproveita e usa o link de afiliado pf 😎 Obrigado por assistires.
@@TechCornerTV muito obrigado!
Fffffffffffwwwwwwwwoooooow!
Hi, I didn't quite get if you're being sarcastic, but yeah, it's a simple FFT, but it's there. Thanks for watching
Кто знает, какой там микроконтроллер стоит?
Hi, if you find out please let me know! 😁 Thanks for watching.
Just bought the dso2512g! And now saw this video, ok also ordered this one it has 5 day delivery other one 3 weeks.
Hi! Both are wonderfull units. I like a lot the DSO2512G FFT, works very well. This one the phosphor technology with the color temperature, gives you awesome signal image. Thanks for watching!
E as linhas verticais da onda quadra?
Olá Marcelo, se estiveres em frequências altas e o sinal for realmente quadrado (ângulos de 90º), realmente são tão finas que não aparecem. Na minha ótica, nada que seja problemático no geral de utilização do osciloscópio. Obrigado por assistires.
@@TechCornerTV mesmo assim vale a pena ter um, melhor esse do que o dso2512g?
Is this better than the DSO2512g?
Hi, in my opinion, mostly yes. The only thing DSO2512G is better is in FFT and the TV output is kind of cool 😁 All the rest, DPOX180X FTW! Thanks for watching!
Thanks for watching!
Why there was no tear down part?
Hello, the video was too long already. I will do another video with the firmware upgrade, the teardown and a few other topics soon. Thanks for watching.
@@TechCornerTV This oscyloskop doesn't have mathematical functions on two waveforms?
@@Rafa-xl4uf Sorry no, well, not considering the X-Y mode or FFT, but I think you're considering CH1+CH2 and so on.
🎉❤
Hello Ju, thanks for watching!
@@TechCornerTV You're welcome, I loved this amazing ocilloscope.
What's the sampling rate in single channel mode? 500MS/s or 250MS/s?
I looked this up and it’s definitely 500MS/s in single channel mode. However, I can’t find anything about it’s sample rate when running both channels at the same time. I presume it’s 250MS/s like most scopes would be though.
@@khuongathebounga4141 It has 2 ADCs, and if they're AD9288, like in the previous scopes, than it's like 200MS/s per channel regardless 1 or 2ch mode.
Hi, I can only tell what they announce, nothing yet on the sampling rate while running 2 channels. I received it Friday afternoon and worked trought night and yesterday to have the video ready today, so didn't do much research. But I assume, by experience, that if they announce 500MSa/s sampling rate and don't add "per channel", is because it is divided for both channels. Thanks for watching!
@@TechCornerTV Well guess I'll have to wait untill I receive mine )
Thank You! I bought one!
Hi, hope you enjoy it! Thanks for watching.