New toy(?) scope Fnirsi DPOX180H, claimed 180MHz/500MSps (May 2023)

[ptluis]

I can't find a product link. Will ask finirsi if they still sell it.
The upgrade video is here:
https://youtu.be/VsiZiW_2zy8

ok thanks 👍

[ptluis]

Indeed and if you buy the new (yellow) version the pressing of the buttons will substantially be better. You don't need to buy a new scope only the casing.

Do you know if the hardware of the second model is the same as the first one?  same pcb, components, etc?

[RAPo]

No I don't. I had an early blue DPOX and applied the yellow upgrade kit. The upgrade is hardware-independent.

Indeed and if you buy the new (yellow) version the pressing of the buttons will substantially be better. You don't need to buy a new scope only the casing.

Do you know if the hardware of the second model is the same as the first one?  same pcb, components, etc?

[RAPo]

My contact at FNIRSI told me that no (yellow) shells are available.

I can't find a product link. Will ask finirsi if they still sell it.
The upgrade video is here:
https://youtu.be/VsiZiW_2zy8

ok thanks 👍

[ptluis]

My contact at FNIRSI told me that no (yellow) shells are available.

I can't find a product link. Will ask finirsi if they still sell it.
The upgrade video is here:
https://youtu.be/VsiZiW_2zy8

ok thanks 👍

Hello thank you for your time. Its not a big problem, the keys with some degree of usage are becoming soft.

[Dezmond2]

Guys, what conclusion for this toy for now? 
Real sample rate not 500MSps? Real BW 50-60?

[csuhi17]

Guys, what conclusion for this toy for now? 
Real sample rate not 500MSps? Real BW 50-60?

https://youtu.be/9-EHjiijSA0?si=4e3-Bn9dDtOr_Geo&t=275

[Dezmond2]

https://youtu.be/9-EHjiijSA0?si=4e3-Bn9dDtOr_Geo&t=275

I see BW 180Mhz is real...what about real sample rate...maybe count points on of zoomed wave...

[csuhi17]

I see BW 180Mhz is real...what about real sample rate...maybe count points on of zoomed wave...

No, they are just for decoration, maybe it helps in reading, but they are not the real samples.
I just measured it and there is about 400 ps between two points,
2.5Gsa/s?! yes yes for sure.
If I remember correctly, the teardowns revealed that the real one is 500MSa/s, but we don't know the real memory depth.

That's why I dared to buy the next version from them.
It's a big disappointment, Fnirsi hasn't come to its senses, it's still producing more and more waste.
But this DPOX180H is still in the usable category.
It should be taken into account that Fnirsi's support period is much shorter than that of other manufacturers.
If you're lucky, two updates will be released and that's it.
1 was released for the DPOX180H, not a single one was released for the 2C53P, but more pieces are coming...

[battlecoder]

https://youtu.be/9-EHjiijSA0?si=4e3-Bn9dDtOr_Geo&t=275

I see BW 180Mhz is real...what about real sample rate...maybe count points on of zoomed wave...

I don't think it's real. Based on the sampling rate and everything, it looks to me that they are doing a lot of interleaving to get to those numbers. I don't think it would behave well with a non-periodic waveform. At least based on my tests.

It's still a pretty usable scope and one of the best handheld scopes I've tried, but I do not think they fully meet the specs.

[csuhi17]

https://youtu.be/9-EHjiijSA0?si=4e3-Bn9dDtOr_Geo&t=275

I see BW 180Mhz is real...what about real sample rate...maybe count points on of zoomed wave...

I don't think it's real. Based on the sampling rate and everything, it looks to me that they are doing a lot of interleaving to get to those numbers. I don't think it would behave well with a non-periodic waveform. At least based on my tests.

It's still a pretty usable scope and one of the best handheld scopes I've tried, but I do not think they fully meet the specs.

500 MSa/s may be real, the fastest rise time measured with it was between 3 and 4 ns. I couldn't measure it more precisely, just by eye.
I was able to get a 4ns rise time with a single trigger. Which was the same on the Owon HDS2202.

Whichever principle you follow, a 500MSa/s scope will never be 180MHz, only for repetitive samples.
Bandwidth (Hz) = 0.35/rise time(s) or sampling rate/10 .

Rigol DG912Pro, pulse, 3ns Rise time, 1Hz.
IMAGE1 with Owon HDS2202
12 with the DPOX180H

One of my biggest concerns, besides the many bugs, is that it often freezes. No new firmware for almost a year?! forgotten project...
otherwise it can be used.

[Florentino]

Hello everyone.
I heard that when using high-quality probes, the oscilloscope errors are not so large. Surely there are people here who have expensive high-quality probes, have you checked their effect on the readings?