[time-nuts] pp2s? No, 1pps from a Nortel GPSTM!

[Attila Kinali]

Moin Tom,

On Tue, 26 May 2015 05:09:05 -0700
"Tom Van Baak" <tvb at LeapSecond.com> wrote:

> The performance depends somewhat on which vendor's oscillator was used. 
> I tested a bunch here:
> http://www.leapsecond.com/pages/nortel/

The phase noise plots look a bit peculiar for unit 2 and 4.
Do you have any guess where the humb at 4kHz comes from?

Also the much higher amount of harmonics(?)/spikes of these
two units raises some questions. Might it be that they use
a different PLL structure as well?

			Attila Kinali
-- 
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