[time-nuts] PPS sync

Jerry Hancock jerry at hanler.com
Wed Jun 7 12:01:33 EDT 2017


That makes complete sense, it’s not disciplining anything, just pumping out the PPS and reporting the variance.  I don’t know why I didn’t think of it.

It’s interesting how it jumps around from PPS to PPS. 

Thank you,

Jerry


> On Jun 7, 2017, at 2:57 AM, Hal Murray <hmurray at megapathdsl.net> wrote:
> 
> 
> jerry at hanler.com said:
>> Chris, I think you are onto something.  Running Lady Heather on this unit I
>> see a line under “receiver” with the term “SawT” and a parameter of 24ns.
>> So if we combine this information with what you teach below, it’s starting
>> to look like maybe the M12 unit is doing something different than the
>> Lucent.
> 
> The M12 is a timing receiver.  The Lucent is a GPSDO.
> 
> The Lucent will adjust the osc so it runs at 10 MHz and the phase is such 
> that the PPS lines up with UTC.
> 
> The M12 tells you the offset rather then adjusting the osc so the offset is 0.
> 
> 
> 
> -- 
> These are my opinions.  I hate spam.
> 
> 
> 
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