I only now see this thread, I had not realized this was from fnirsi.
At the moment, my opinion of fnirsi is extremely negative. The fnirsi gadgets look good, mechanically they seem pretty solidly built, the prices are unbelievably low, but they also blatantly lie in their specifications. Every time I see a somewhat in-depth review of a fnirsi gadget I see extremely gross errors that simply should not be there. From hiding artifacts by averaging multiple tracks on a scope (Does that white desktop scope even have single trigger? And also other weirdness.
I very much doubt that this dpos350 has a real 16bit ADC. And that's OK, nobody expects 16-bit ADC's on an oscilloscope, and certainly not in this price range. And it's nice if you have some high-res mode with averaging in which you can approximate 16 bits of resolution, but then state in your manuals and advertisements what is is and what it does. Don't lie.
As long as you're lying in your specifications, it's just a silly gadget. State real specifications and make it work reliably, and you can probably up the price a bit and people will still buy it.
I have not seen the Kerry Wong review (He usually makes pretty good reviews), but as it stands, the text shabaz posted here is enough for me, and it exactly confirms what I have seen in previous reviews of fnirsi gadgets. This scope has the same dubious anti features as the other gadgets. Shabaz is generous. I would not even touch this scope if I got it for free.
... and my personal conclusion from that video is that you couldn't really trust the results shown by the instrument, unless you'd confirmed them with a normal 'scope first.
... The FFT looks mostly unusable....
... but I wouldn't spend more than $100 on it.
I'm just not confident enough about this one, and I doubt some of the issues can ever be resolved by firmware updates alone.
I don't know exactly where it goes wrong. Is the hardware simply not up to specs, and is the software hiding that on purpose? Maybe it's mostly software bugs that can be fixed over time. What I've seen of the 1014D is so disappointing that, at the moment, I simply can't take the brand seriously. Fix the serious issues with your equipment first before you put more gadgets on the market. For a scope with a (claimed) 350MHz bandwidth there are a bunch of expectations about signal quality and trustworthiness. If you can't match those expectations with real specifications, you are making gadgets and not test equipment.
And overall, you've already got a lot going for the brand. It looks good, is reasonable solidly built, very small prices, but as long as you don't improve the actual functionality, it's "fnirsi gadgets" without a captital F, and not "Fnirsi test equipment". For this reason I'm completely disregarding the whole brand at the moment. Maybe you you will deserve the capital F in a few years, but watching reviews (often made by beginners who do not always recognize the lies / deficiencies) is just a waste of time at the moment. I am thinking of buying a handheld scope in the near future. I already have a quite capable Siglent scope, but I'd like a scope without a fan and one that can be use without a mains plug and that is also easier to move around and store. An Owon or Hantek with around 20MHz to 40MHz is what is on my short list at the moment, but no fnirsi stuff.
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