Hi Gerry Thanks you answer however I am still confused because you say the unit is V/sqrt(Hz). It's not the actual calculations I have problems with it's the consistency of the output of the spectrum analyzer using the same waveform but different settings in the spectrum analyzer. When the numbers o...

I am trying to make calculate the PSD of white noise sampled in the spectrum analyzer however Im having some trouble combining several frequency bands. I saw another answer by Gerry where the power is supposedly calculated as power = (sum of (V^2)) / impedance Forum Post 88891 This means I should be...