Previously there was some confusion and disagreement on the subject.
What are the latest opinions?
The white noise which is the only dominant noise at higher frequencies
goes down into the lower range and do contribute to the ADEV measures
there, even if filtered.
Well, in which case
I'll take a guess at the answer.
White noise is constant power over Frequency
If the Nose Bandwidth is reduced from 100MHZ to 10 Hz then power would be
reduced by 1e7 to 1
Voltage is square root of Power so 1e7 power ratio is = 3e3 to 1 (1/3162)
The 10 ns noise would be reduced to 3ps
Or put
