Hello Albertas, Thank you for your post! Could you elaborate more on the electrode configuration during the test setup? Ideally, the electrodes should be shorted together and tied to the RLD output. This keeps the electrodes from floating and ensures that any noise remains common to both inputs. When you say "enable RLD on one of the two inputs," are you changing a register setting? Can you specify the address and the setting before and after? Lastly, it may be more telling if you can compute an FFT on the raw data and look at the frequency content of the noise. This may tell you if it's just power-line noise coupling or perhaps other signals on the board. Do you have the raw data in a text file that you can share? Either decimal or hexadecimal format is fine. Best regards,
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