[time-nuts] Lucent RFTGm-II-XO / Lucent RFTGm-II-Rb / NT BW50AA

[Mark Sims]

On some GPSDOs (like those made by Trimble that speak TSIP) you can disable disciplining.  Doing this usually reduces phase noise on the outputs,  but in this mode the frequency will drift over time.  A lot of hams normally keep disciplining on and turn it off when they are driving a radio.   The oscillator in the "gold box" Thunderbolts (like those bought from TAPR) have oscillators that tend to have rather good phase noise characteristics.


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>None of the GPSDO’s out there are great for multiplying direct to microwaves. It’s not so much
the phase noise as all the spurs (though phase noise does vary a bit).