[time-nuts] Setting up PRS10 with M12+T GPS

bg at lysator.liu.se bg at lysator.liu.se
Wed May 2 22:30:48 UTC 2012


Magnus,
>>
>> Tbolt       PRS10A     PRS10B
>> 1pps  -->    PPSIN
>>              PPSOUT -->  PPS IN
>>
>> PRS10A slowly following the Tbolt (PRS10A PT8)
>> PRS10B "quickly" following the PRS10A (PRS10B PT0)
>>
>> Ok?
>
> Yes, but if this is a free-running thunderbolt (I think you said
> something about that) then PT8 will be a bit slow. For a tracking
> thunderbolt PT8 may work, even if it takes time for it to track in.

No a GPS locked Tbolt. A free-running Tbolt was just an example of a very
low noise 1PPS source, where I would find it useful to have a "PT-1" bias
calibration mode bypassing the PLL, and moving the PPSOUT directly with
the PPSIN.

--

   Björn





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