[time-nuts] GPSDO control system

davidh dhooke at gmail.com
Fri Mar 28 02:14:54 EDT 2014

Howdy Charles,

Could you tell us more about the PLL, what sort of phase comparator, 
filters and so forth. I'd be keen to duplicate and test your configuration.



> David wrote:
>> How do you lock your OCXO to the PRS10?
> I just use a 1:1 PLL.  Some will argue that phase locking two
> oscillators running at the same frequency is not optimal, but I have
> found that it can work very well.  YMMV.  Perhaps locking a 100 MHz OCXO
> to the PRS10 and dividing its output down to 10 MHz could yield better
> results (and perhaps not) -- but I have no desire to start collecting
> 100 MHz OCXOs and culling them to find the best one, so that hypothesis
> is left for someone else to investigate.
> Best regards,
> Charles

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