Products > Test Equipment

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

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ptluis:

--- Quote from: ru_tash on September 29, 2023, 03:09:30 pm ---
--- Quote from: solidhit on September 29, 2023, 08:44:11 am ---ru_tash  Oh, you mean something completely different. Setting this option to 0, just tells the device that WHILE YOU ARE AT THE MENU, you want the background to be black. It doesn't mean anything else outside the menu. It doesn't change the brightness, the grid or any information displayed on the screen while you're working with the oscilloscope!

--- End quote ---
ok I see now, but would anyone really need black/grey background only during setup parameters, especially fading with accuracy of 1%?
such a stupid useless feature....

--- End quote ---

could be usefull when you apply "Auto Band limit" filtering level and "20MHz bandwidth limit" and see the results without having to exit menu settings

ptluis:

--- Quote from: ru_tash on September 29, 2023, 05:10:42 am ---
they corrected menu with number of open measurements.

--- End quote ---

confirm Ch2 doesn't show anymore the residual label

battlecoder:
Ok, so I bit the bullet and upgraded to v40.
The thinner trace is actually good. I worried that it was going to lose the infamous "phosphor" quality if they made it thinner and/or crisper, but alas, the change is very small and the device's main selling point (the phosphor display) lives to see another day.  The described 1Khz glitch is also present in my unit btw. Although I don't know if it's an intermittent trigger issue or it's just that they are getting some random samples that connect from one side to the screen to the other.
Anyway, regarding trace width, here's a comparison for people interested in what it looks like:
( I use noise as a "benchmark" because high frequency noise just looks like a block of solid color with random spikes in oscilloscopes with simpler digital traces)

ptluis:

--- Quote from: battlecoder on September 29, 2023, 07:27:36 pm ---Ok, so I bit the bullet and upgraded to v40.
The thinner trace is actually good. I worried that it was going to lose the infamous "phosphor" quality if they made it thinner and/or crisper, but alas, the change is very small and the device's main selling point (the phosphor display) lives to see another day.  The described 1Khz glitch is also present in my unit btw. Although I don't know if it's an intermittent trigger issue or it's just that they are getting some random samples that connect from one side to the screen to the other.
Anyway, regarding trace width, here's a comparison for people interested in what it looks like:
( I use noise as a "benchmark" because high frequency noise just looks like a block of solid color with random spikes in oscilloscopes with simpler digital traces)

--- End quote ---

I also think the V40 it's better because we can see the spikes without losing the dpo feature. in the meantime fnirsi ask me to make a video of the glitch problem and send it to an email address. we'll see if they solve the problem.

csuhi17:
The Russians also tried replacing the capacitor, they increased the 710 picofarad capacitor to 2000 picofarad.
But they make 7% mistakes.
I had 330pF in it and replaced it with 100nF and it's perfect.

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