Products > Test Equipment

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

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Dezmond2:
Guys, what conclusion for this toy for now?  8)
Real sample rate not 500MSps? Real BW 50-60?

csuhi17:

--- Quote from: Dezmond2 on September 12, 2024, 01:35:58 pm ---Guys, what conclusion for this toy for now?  8)
Real sample rate not 500MSps? Real BW 50-60?

--- End quote ---


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

Dezmond2:

--- Quote from: csuhi17 on September 12, 2024, 03:58:24 pm ---https://youtu.be/9-EHjiijSA0?si=4e3-Bn9dDtOr_Geo&t=275

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

csuhi17:

--- Quote from: Dezmond2 on September 13, 2024, 07:26:14 pm ---I see BW 180Mhz is real...what about real sample rate...maybe count points on of zoomed wave...

--- End quote ---

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:

--- Quote from: Dezmond2 on September 13, 2024, 07:26:14 pm ---
--- Quote from: csuhi17 on September 12, 2024, 03:58:24 pm ---https://youtu.be/9-EHjiijSA0?si=4e3-Bn9dDtOr_Geo&t=275

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

--- End quote ---

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.

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