[time-nuts] Sub Pico Second Phase logger

[Joseph M Gwinn]

Bruce,


time-nuts-bounces at febo.com wrote on 12/11/2008 08:36:47 PM:

> Joe
> 
> Attached is noise spectrum (1kHz and below) of AP192 with nothing
> connected to inputs.
> Sampling rate 96KSPS.
> Frequency bin equivalent noise bandwidth ~ 3Hz.
> Noise has similar spectrum to flicker noise with a noise corner of
> around 300Hz or so.

The noise floor ain't so bad, -130 dB (dBm? dbV?) at maybe 10 Hz, even if 
it's 20 dB worse than at 1 KHz.

Has anyone measured the Allan Deviation?

Joe