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Post time 2020-11-24 11:26:44 | Show all posts |Read mode
Edited by amy at 2020-11-24 11:53

Customer Consultation

Hello. Explain to me where the noise comes from with such a huge amplitude (photo attached) without a connected probe. And how can I measure signals of small amplitude, if the intrinsic noise is more than 10% of the useful signal !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!?
And further. The oscilloscope should be calibrated with the input short-circuited so that there is no pickup at the input connector. He does not give this (hangs during the calibration process), which is not correct.
Waiting for an answer.


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It is normal for the oscilloscope to have noise. If you want to measure small amplitude signal, it is recommended that you choose a small volt/div.
When performing self-calibration, please do not connect to any test line, because the test line will be interfered by the external environment and affect the calibration.










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