Never thought of this

[Jason Wright]

One of my coworkers at INL did some research into using the precise
frequency measures to locate the source of grid disturbances. Essentially,
his research group built a relatively cheap device that you plug into the
mains. iirc, the device had a GPS (or you just told it where it was
physically, I don't recall). It measured the change in frequency and
reported back to a central server. They could look at the changes in the
frequency as grid events propagated through the system. (iirc, this work
was done 2010 or so).

I've personally wished the power companies would use a low speed signalling
mechanism to put timestamps on the wire... mainly so I wouldn't have to set
the clock on my microwave and oven (30 second resolution would suffice for
this application).

On Fri, Nov 29, 2024 at 11:10 AM Elton A Sanders <radiodog77 at pobox.com>
wrote:

> Time stamp by power hum.
> https://www.youtube.com/watch?v=e0elNU0iOMY
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