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Author: Sead

Internal jitter in DSO4202C oscilloscope

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 Author| Post time 2019-9-30 22:05:53 | Show all posts
On 30.09.2019 I did firmware upgrade to sw version 3.5.0(190613.0) hoping that the internal jitter issue in my DS4202C oscilloscope will be resolved.As you can see from the enclosed photo, this was not the case - the jitter is still prersent and influences all measurements (frequency,  amplitude,
period, rise- and fall-times etc).


Questions:
- have you experienced such behavior on yours DSO4202C oscilloscopes?
- does someone knows what is the problem and how this can be eliminated?
Thanks in advance.
Sead

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Post time 2019-10-1 06:03:27 | Show all posts
Try to use average mode in the Acquire menu button.

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 Author| Post time 2019-10-2 15:24:38 | Show all posts
Edited by Sead at 2019-10-2 15:43
OASJ2YSeeEhBQo1 replied at 2019-10-1 06:03
Try to use average mode in the Acquire menu button.

Thanks, I did it. The waveform is changing amplitude and phase considerably from one screen to another, I assume,  due to averaging ecffect. I performed Pass/Fail Test and it looks miserable. Any other idea?


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 Author| Post time 2019-10-2 15:36:51 | Show all posts
I performed Pass/Fail Test and it looks like this:



How can I interpret this? Does it means that the Hardware is affected?



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