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New toy(?) scope, DSO154pro, 1ch, claimed 40MS/s

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Fungus:

--- Quote from: Matamipru on January 10, 2023, 03:47:00 pm ---The alligator show square wave better than probe x1 and x10.

--- End quote ---

It should be about the same as 1x.

Here's mine with the probe on 1x:


And here with the probe on 10x:


There's quite a difference in bandwidth.

(voltage is low because I'm testing battery life and there's only one pixel of battery left...)

Fungus:

--- Quote from: Fungus on January 10, 2023, 03:57:35 pm ---(voltage is low because I'm testing battery life and there's only one pixel of battery left...)

--- End quote ---

Update: Battery indicator turned red and some strange glitches started to appear on the signal:

Fungus:
Update2: Battery indicator is flashing and the glitches are getting much worse:

__Jack__:
Thanks colleagues. You were right. In my measurements I have  both crocodiles and probe x1 connected together.
Yesterday I made comparisons with my Rigol osciloscope and it turned out that x1 probe has some kind of lowpass filter.
Even Zeeweii manufacturer told me about it when I described them my problems.
I do not know why they attache such probe,  but any other probes I have , do not cut bandwith by lowpass filter on x1 position.

Regards
Jack

Fungus:

--- Quote from: __Jack__ on January 11, 2023, 05:25:24 am ---I do not know why they attache such probe,  but any other probes I have , do not cut bandwith by lowpass filter on x1 position.

--- End quote ---

Try your Rigol probe on this 'scope...  :popcorn:

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