Products > Test Equipment

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

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Serhii74:
0.1uF = 100nf = 100 000 pF

Serhii74:
A representative of the FNIRSI company thanked me and offered me a $20 discount for the purchase of this oscilloscope in a new case.
Here is his answer:

Hi, dear friend, thank you very much for the information!
We will give feedback to the technical staff. If any customers have this problem, we will share it with them.🤝
The new appearance brings you a different experience.
The new appearance of DPOX180H is now online.
Order now to enjoy a 20$ discount.
CODE: NEW888
Link: https://s.click.aliexpress.com/e/_oDnLCtL


If anyone is interested, please use it.

ptluis:

--- Quote from: Serhii74 on September 22, 2023, 11:08:30 pm ---A representative of the FNIRSI company thanked me and offered me a $20 discount for the purchase of this oscilloscope in a new case.
Here is his answer:

Hi, dear friend, thank you very much for the information!
We will give feedback to the technical staff. If any customers have this problem, we will share it with them.🤝
The new appearance brings you a different experience.
The new appearance of DPOX180H is now online.
Order now to enjoy a 20$ discount.
CODE: NEW888
Link: https://s.click.aliexpress.com/e/_oDnLCtL


If anyone is interested, please use it.

--- End quote ---

instead of solving the problems this model has,  they insert the "old" one into a new dress and try to fool everybody into buying another one with the same bugs  :palm:

battlecoder:
I was going to do a review of this scope in my blog but I will wait until I get the proper cap to repair the issue. The only 0.1uF 0805 caps I have right now are 50V.

The fact that they are already replacing the model with a "new" version, however, gives me zero confidence in the brand. I've literally had mine for like 2 weeks and there's already a new version? lol.


EDIT: I tried changing them anyway, despite the caps I had being only 50V (it's not like I intended to use this with high voltage anyway, and I gave up trying to find 100V parts) and the difference in calibration when switching between AC and DC is still there, although a tad smaller. The caps I removed, however, were like 350pF and not "740pF" as Serhii74 reported earlier.

Difference between AC and DC disappears at around 15 Khz ~, and it's unlikely that I'll be playing around with signals at 15KHz or less, that require 10x attenuation, AC coupled, but this still annoys me a bit.

ru_tash:

--- Quote from: battlecoder on September 23, 2023, 01:01:14 am ---I was going to do a review of this scope in my blog but I will wait until I get the proper cap to repair the issue. The only 0.1uF 0805 caps I have right now are 50V.


--- End quote ---
it is interesting, how to recognize maximum voltage for smd capacitor?

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