[time-nuts] Re: Question about GPS 1PPS ADEV

[Carsten Andrich]

Hello Matthias,

provided your OCXO is sufficiently stable, i.e., better stability than 
the 1PPS, I agree that you should see said "bulge". Judging from the DAC 
plot, the EFC voltage is being adjusted within the tau range in which 
you expect the NEO-M8T bulge (10~100 s), so I'd expect that to have an 
effect on the TIC ADEV. Could you measure in holdover mode with fixed 
EFC voltage?

Best regards,
Carsten

On 16.04.22 15:52, Matthias Welwarsky wrote:
> I
> reason that, were the LO more stable, more loosely coupled to the GNSS, I
> should see the bulge from figure 26. Would you agree?