[time-nuts] Power line timing -- setting a clock

[Hal Murray]

All sorts of gear uses the power line to drive their clock.

I picture that a corner of the control room has 2 clocks, one tracking UTC and 
the other tracking the power grid.  The difference between that pair feeds 
into their complicated control system that includes some sort of PLL that 
keeps the power line clock
tracking UTC.

Is there any way to get a copy of their power line clock?  So I can set my 
power line clocks to a similar offset so they will have a better chance of 
being right tomorrow after they correct for today's offset?  I'm not looking 
for microseconds, just microwave-setting accuracy.

Do they have a graph showing the offset for the last week or month?  I can 
line that up with my graphs.



Here is a graph from Feb/Mar 2024 where it drifted a minute over 2 weeks.
  https://www.glypnod.com/TimeNuts/60Hz/60Hz-2024-FebMar.png
That's 4 seconds per day.


-- 
These are my opinions.  I hate spam.