PS 3206MSO issues ...

evalon · Post by **evalon** » Thu Jan 27, 2022 5:23 am

Hi PS forums,

I have an odd issue with my Picoscope 3206MSO which I hope someone here may know of and hopefully be able to help with - would be much appreciated.

The issue is that when using channel A the oscilloscope triggers on a signal when I choose nanosecond (ns) time bases whereas when I select microsecond & upwards time bases the signal just "floats" at "some signal level" - and never triggers the signal no matter what I do.

Oddly, this is not the case on channel B. Here I can trigger with any time bases.

I am pretty sure it has not always been like this - channel A used to work as intended.

Might someone here know what causes this? Software or hardware issue? I use Win7 and my picoscope software is version 6.14.44.

Cheers & thanks for any help in this,

Jesper

bennog · Post by **bennog** » Thu Jan 27, 2022 8:49 am

Do you have some filtering or resolution enhancement enabled on channel A ?

Benno

Post by **Martyn** » Thu Jan 27, 2022 9:20 am

Right Click on the screen then select View Properties so that a panel opens on the right with the scope settings,we need to understand the differences between the two setups. Alternatively save a psdata file for each situation and post both of those.

There is also a later version of the PS^ software that can be downloaded here https://www.picotech.com/download/softw ... _14_54.exe

evalon · Post by **evalon** » Fri Jan 28, 2022 7:50 am

@bennog & Martyn,

Thank you both for your feedbacks, and well, this is potentially embarrassing

... but following your suggestions I noticed in the right property box that I had a 40 kHz lowpass filter enabled on channel A.

Disabling this filter everything now works ...

Thanks again for your help & my apology for any inconvenience ..

Cheers,

Jesper

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