EEVblog 1582 - FNIRSI DPOX180H 180MHz DPO for $123?

A look at the FNIRSI DPOX180H 180MHz Handheld Digital Phosphor Oscilloscope for $123.

00:00 - FNIRSI DPOX180H 180MHz Handheld Digital Phosphor Oscilloscope
11:58 - The Sig Gen sucks, why bother?
14:27 - Digital Phosphor Display
15:06 - Amplitude check
16:40 - Teardown
25:02 - Batery life
25:18 - Conclusion

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#ElectronicsCreators #FNIRSI #Oscilloscope

[tiagoferreira]

I bought one of those and i have mixed feelings, i like the form factor, the screen, and some features, however the interface sometimes is not that obvious, mine sometimes freezes, and signal acquisition is a bit "mehhhh" it can have a "high" bandwidth but surely they are pulling some tricks to achieve it, even when compared to my Rigol DS1054z(with 100Mhz mod) it lacks a lot of detail in the wave forms and its very jittery. Instead of promising high bandwidth and a (useless)signal gen., they could have implemented way more useful stuff like, trigger hold off time (and possibly other triggers mode like AC and etc), roll mode, some basic protocol decryption (uart, i2c, spi, can...), etc. My biggest complain is the memory depth which is only 8K or so, you can't capture a chunk of signal to then analyze it. But overall for my uses and intents, keeping in mind the limitations i'm kinda of happy with bang for buck, i paid about 112€ delivered.

[matthewf]

These scopes are great for the entry level hobbyist. I would have killed for something like this 20 years ago.

[NN-gblf]

I actually bought this and I'm rather impressed for the price. Once you take the time and figure out the interface, I find they've done a lot of things well. I've found it rather convenient and useful for my hobby electronics work.

My verdict after a month of usage is to buy it if you're in the market at this price range or you're just looking to get started - it's a decent, slightly flawed but overall satisfactory scope for like half the price of a high-end probe. If you've got a lot more cash/experience, then of course it's better to splurge for a proper bench scope.

[xxportalxx.]

The waveform copy and paste function is actually a really cool idea from a troubleshooting perspective, if you're working on equipment in the field and need to figure out if it's handling signals properly it can be a pain sometimes to get the real signal to test with. I work on a lot of equipment that has to be locked out prior to maintenance, so you have to shut it down, lock it out, try your fix, unlock it, power it up, then see if it worked, rinse and repeat, being able to simply spoof the signal with a copied real signal would be a huge time saver!

[gblargg]

2:14 That turn-on time is extremely refreshing. No big bloated one-size-fits-all OS in this thing.

[pasblo]

Half of your problems you had with this scope is because you didn't read the manual, also going negative biased into a review is a bad starting point for a reviewer

[evanbarnes]

Oh man good timing! I was just looking at MiniWare's mini scopes literally an hour ago! I would just go for a used full size scope, but I live in a small apartment and collect hobbies that require lots of gear, so the idea of a small scope that can adequately meet my beginner needs is appealing.

[bobimnottellin]

These little fun-sized cheap scopes are excellent for automotive use. Super easy and practically disposable price, compared to lugging a laptop or paying giant money for professional mechanic equipment.

[TYGAMatt]

I use a cheapo handheld scope regularly and it's been most useful. But yesterday broke out the Tektronics for a better look at things and yeah, it's way better.
However, these handheld cheap scopes are definitely useful.
I have never needed more than 50MHz so I have to agree that making a solidly performing 50MHz scope would probably be a better tool for the market FNIRSI are aiming their products at.

[ChupoCro]

You selected a square wave output while expecting the function generator would output the captured signal and then concluded that outputting the captured signal doesn't work :-/ I bet it works well because user iterface looks similar to 1014D where there are quite a few options for selecting various predefined signals or the captured signal. There is Save Waveform function besides Screen Capture too which you didn't even test. This scope looks more than excellent for the price.

[das]

One of the nice things is not having to worry about the non ground on most new equipment being tested . Due to switch mode power the actual ground isn't the ground on the outputs of power supply rails so using a ground clip shorts the virtual ground to real ground and can blow up oscilloscopes and test leads and devices being tested .

[theodorgiosan]

I have one of the multimeters with an oscilloscope built in, the more expensive one, not the one that's just a "waveform display". For general fault finding on building wiring it's excellent. I have a handheld Hantek and an HP tabletop digital oscilloscope as well, but the multimeter is the one that always comes with me. Even though it only has one channel and not a whole lot of features, just the ability to bring a basic oscilloscope around that has the rest of the usual multimeter features is amazingly useful.

[qzorn]

I enjoy these hobby O-scope demo reviews. 🥳 Also, there are some cool PC repairs using $155 oscilloscopes to check various waveforms with remarkable results.
Nice little FNIRSI DPO. For now I have several different oscilloscopes. I am waiting for some more hobby 12bit models to come out. 🤩 Thank you.

[GoldSrc_]

I can see it having its uses as a second scope if you don't have enough space for a proper second scope.
Can you imagine if we had scopes like these handheld ones in the 90's? Hell, people would kill for that technology in the 80's lol.

[jonathanseagraves]

If I lived around Dave I would be an absolute menace in his dumpster. It would be like scaring away raccoons.

[TheGFS]

I always love these videos of cheap scopes and multimeters, and the reason is that it's like a "game" you never know what you are getting :D When you look at a very fancy scope that costs few thousand dollars I already know it's gonna be a good scope with fancy features, and it's also fun to watch but with these it's always more fun to see if they maybe can do what they claim =) On this scope though, i kinda want just the display to use with some diy projects

[das]

We need an open source unit, board with real decent basics and firmware that engineers can upgrade in that open source form . An eEV oscilloscope guided by the community for the community . Basic form factor, battery operated . Can be powered externally by say a 12 v battery gel cell incase internals are flat .

[chongli]

This reminds me of those restaurants that have a million things on the menu and everything's just okay. C'mon! If you want to impress me just put ONE thing on the menu and make it a Bobby Dazzler!

[alklapaxida]

back in the good old days i had to take a bloody loan to buy fluke scope that came from eindhoven
this low cost scope and many like it have made it so easy to get involved in electronics work
i have brought many of them and given them away as presents and use them on the go
it's like a disposable cup use it till it breaks then chuck it
i am very impressed at what you get for how little it costs !

[Iosens]

I would have killed for that when I started with electronics...(Actually even years after that.) Nice Christmas gift for a teen dabbling in electronics.