[time-nuts] Low Phase Noise buffer

[WarrenS]

T&F Nut question

Is the high frequency phase noise of a buffer important when the Oscillator 
is used just as the Reference for taking ADEV data?
The current (2005) writings say that ADEV phase data should be bandpass 
filtered which removes all the High freq edge jitter.
If that is the case, Does a buffer's added HIGH FREQUENCY phase noise and 
jitter have any effect on the ADEV numbers when using modern, high 
resolution, mixer type, Time interval counters? Of course the low frequency 
type of buffer noise would still be important.

Previously there was some confusion and disagreement on the subject. What 
are the latest opinions?

ws