I want to check with you guys whether there is a analog anti-aliasing filter inside Picoscope 5000 series. If there is, what is the parameters.
Using different sampling rate 125MS, 62.5MS, 31.25MS, and 15.625MS to look at 4MHz received signal, I can see the noise floor increase when I reduce the sampling rate as: 0.095175mV, 0.133119mV, 0.188294mV, 0.275001mV. I am wondering what is the reason?
Thanks a lot.